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authoreschnett <>2001-03-07 14:19:00 +0000
committereschnett <>2001-03-07 14:19:00 +0000
commit6710695a5c51723a6749ce70ed31c78f96e5721f (patch)
tree9a7404ae74aa927784e9fd3f6b7b43ea93a4ee35 /CarpetAttic/Cart3dTest
parentf18c55697b69b77eac655793885a08880e4d9c86 (diff)
Removed old test suite.
darcs-hash:20010307141926-f6438-adefef063f4466bd08b372627c5dd12aea8bd428.gz
Diffstat (limited to 'CarpetAttic/Cart3dTest')
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-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-x/vx.xl52
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-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-x/vy.xl52
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-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_x.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_x.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_x.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_y.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_y.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_y.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_z.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_z.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_z.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/fxx.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/fxx.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/fxx.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/fxy.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/fxy.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/fxy.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/fxz.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/fxz.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/fxz.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/fyx.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/fyx.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/fyx.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/fyy.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/fyy.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/fyy.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/fyz.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/fyz.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/fyz.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/fzx.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/fzx.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/fzx.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/fzy.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/fzy.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/fzy.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/fzz.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/fzz.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/fzz.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/s.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/s.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/s.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/spher3d_r.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/spher3d_r.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/spher3d_r.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/txx.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/txx.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/txx.zl52
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-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/txy.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/txz.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/txz.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/txz.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/tyy.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/tyy.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/tyy.zl52
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-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/tzz.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-y/vx.xl52
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-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-z/ax.xl52
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-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_x.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_y.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_y.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_y.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_z.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_z.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_z.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-z/fxx.xl52
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-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-z/vy.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-z/vy.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-z/vz.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-z/vz.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/symmetric-z/vz.zl52
1200 files changed, 34524 insertions, 25248 deletions
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/ax.xl b/CarpetAttic/Cart3dTest/test/axial-xy/ax.xl
index 11b202b47..21fd0dbd2 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/ax.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/ax.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::ax x (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 6 31000106
+0 0 0 0 0 1 1 6 31010106
+0 0 0 0 0 2 1 6 31020106
+0 0 0 0 0 3 1 6 31030106
+0 0 0 0 0 4 1 6 31040106
+0 0 0 0 0 5 1 6 31050106
+0 0 0 0 0 6 1 6 31060106
+0 0 0 0 0 7 1 6 31070106
+0 0 0 0 0 8 1 6 31080106
+0 0 0 0 0 9 1 6 31090106
-"Time = 0.000000
-0.150000 31000104.0000000000000
-0.450000 31010104.0000000000000
-0.750000 31020104.0000000000000
-1.050000 31030104.0000000000000
-1.350000 31040104.0000000000000
-1.650000 31050104.0000000000000
-1.950000 31060104.0000000000000
-2.250000 31070104.0000000000000
-2.550000 31080104.0000000000000
-2.850000 31090104.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 6 31000106
+1 0 0 0 0 1 1 6 31010106
+1 0 0 0 0 2 1 6 31020106
+1 0 0 0 0 3 1 6 31030106
+1 0 0 0 0 4 1 6 31040106
+1 0 0 0 0 5 1 6 31050106
+1 0 0 0 0 6 1 6 31060106
+1 0 0 0 0 7 1 6 31070106
+1 0 0 0 0 8 1 6 31080106
+1 0 0 0 0 9 1 6 31090106
-"Time = 1.000000
-0.150000 31000104.0000000000000
-0.450000 31010104.0000000000000
-0.750000 31020104.0000000000000
-1.050000 31030104.0000000000000
-1.350000 31040104.0000000000000
-1.650000 31050104.0000000000000
-1.950000 31060104.0000000000000
-2.250000 31070104.0000000000000
-2.550000 31080104.0000000000000
-2.850000 31090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/ax.yl b/CarpetAttic/Cart3dTest/test/axial-xy/ax.yl
index 07c4fc17a..f4e94b8f5 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/ax.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/ax.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax y (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 6 31000006
+0 0 0 0 0 0 1 6 31000106
+0 0 0 0 0 0 2 6 31000206
+0 0 0 0 0 0 3 6 31000306
+0 0 0 0 0 0 4 6 31000406
+0 0 0 0 0 0 5 6 31000506
+0 0 0 0 0 0 6 6 31000606
+0 0 0 0 0 0 7 6 31000706
+0 0 0 0 0 0 8 6 31000806
+0 0 0 0 0 0 9 6 31000906
+0 0 0 0 0 0 10 6 31001006
-"Time = 0.000000
--0.150000 31000004.0000000000000
-0.150000 31000104.0000000000000
-0.450000 31000204.0000000000000
-0.750000 31000304.0000000000000
-1.050000 31000404.0000000000000
-1.350000 31000504.0000000000000
-1.650000 31000604.0000000000000
-1.950000 31000704.0000000000000
-2.250000 31000804.0000000000000
-2.550000 31000904.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 6 -32000106
+1 0 0 0 0 0 1 6 31000106
+1 0 0 0 0 0 2 6 31000206
+1 0 0 0 0 0 3 6 31000306
+1 0 0 0 0 0 4 6 31000406
+1 0 0 0 0 0 5 6 31000506
+1 0 0 0 0 0 6 6 31000606
+1 0 0 0 0 0 7 6 31000706
+1 0 0 0 0 0 8 6 31000806
+1 0 0 0 0 0 9 6 31000906
+1 0 0 0 0 0 10 6 31001006
-"Time = 1.000000
--0.150000 -32000004.0000000000000
-0.150000 31000104.0000000000000
-0.450000 31000204.0000000000000
-0.750000 31000304.0000000000000
-1.050000 31000404.0000000000000
-1.350000 31000504.0000000000000
-1.650000 31000604.0000000000000
-1.950000 31000704.0000000000000
-2.250000 31000804.0000000000000
-2.550000 31000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/ax.zl b/CarpetAttic/Cart3dTest/test/axial-xy/ax.zl
index de951ec21..d1db806dc 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/ax.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/ax.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::ax z (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 31000100
+0 0 0 0 0 0 1 1 31000101
+0 0 0 0 0 0 1 2 31000102
+0 0 0 0 0 0 1 3 31000103
+0 0 0 0 0 0 1 4 31000104
+0 0 0 0 0 0 1 5 31000105
+0 0 0 0 0 0 1 6 31000106
+0 0 0 0 0 0 1 7 31000107
+0 0 0 0 0 0 1 8 31000108
+0 0 0 0 0 0 1 9 31000109
+0 0 0 0 0 0 1 10 31000110
+0 0 0 0 0 0 1 11 31000111
-"Time = 0.000000
--1.350000 31000100.0000000000000
--1.050000 31000101.0000000000000
--0.750000 31000102.0000000000000
--0.450000 31000103.0000000000000
--0.150000 31000104.0000000000000
-0.150000 31000105.0000000000000
-0.450000 31000106.0000000000000
-0.750000 31000107.0000000000000
-1.050000 31000108.0000000000000
-1.350000 31000109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 31000100
+1 0 0 0 0 0 1 1 31000101
+1 0 0 0 0 0 1 2 31000102
+1 0 0 0 0 0 1 3 31000103
+1 0 0 0 0 0 1 4 31000104
+1 0 0 0 0 0 1 5 31000105
+1 0 0 0 0 0 1 6 31000106
+1 0 0 0 0 0 1 7 31000107
+1 0 0 0 0 0 1 8 31000108
+1 0 0 0 0 0 1 9 31000109
+1 0 0 0 0 0 1 10 31000110
+1 0 0 0 0 0 1 11 31000111
-"Time = 1.000000
--1.350000 31000100.0000000000000
--1.050000 31000101.0000000000000
--0.750000 31000102.0000000000000
--0.450000 31000103.0000000000000
--0.150000 31000104.0000000000000
-0.150000 31000105.0000000000000
-0.450000 31000106.0000000000000
-0.750000 31000107.0000000000000
-1.050000 31000108.0000000000000
-1.350000 31000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/ay.xl b/CarpetAttic/Cart3dTest/test/axial-xy/ay.xl
index e15cced9f..5e89df814 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/ay.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/ay.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::ay x (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 6 32000106
+0 0 0 0 0 1 1 6 32010106
+0 0 0 0 0 2 1 6 32020106
+0 0 0 0 0 3 1 6 32030106
+0 0 0 0 0 4 1 6 32040106
+0 0 0 0 0 5 1 6 32050106
+0 0 0 0 0 6 1 6 32060106
+0 0 0 0 0 7 1 6 32070106
+0 0 0 0 0 8 1 6 32080106
+0 0 0 0 0 9 1 6 32090106
-"Time = 0.000000
-0.150000 32000104.0000000000000
-0.450000 32010104.0000000000000
-0.750000 32020104.0000000000000
-1.050000 32030104.0000000000000
-1.350000 32040104.0000000000000
-1.650000 32050104.0000000000000
-1.950000 32060104.0000000000000
-2.250000 32070104.0000000000000
-2.550000 32080104.0000000000000
-2.850000 32090104.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 6 32000106
+1 0 0 0 0 1 1 6 32010106
+1 0 0 0 0 2 1 6 32020106
+1 0 0 0 0 3 1 6 32030106
+1 0 0 0 0 4 1 6 32040106
+1 0 0 0 0 5 1 6 32050106
+1 0 0 0 0 6 1 6 32060106
+1 0 0 0 0 7 1 6 32070106
+1 0 0 0 0 8 1 6 32080106
+1 0 0 0 0 9 1 6 32090106
-"Time = 1.000000
-0.150000 32000104.0000000000000
-0.450000 32010104.0000000000000
-0.750000 32020104.0000000000000
-1.050000 32030104.0000000000000
-1.350000 32040104.0000000000000
-1.650000 32050104.0000000000000
-1.950000 32060104.0000000000000
-2.250000 32070104.0000000000000
-2.550000 32080104.0000000000000
-2.850000 32090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/ay.yl b/CarpetAttic/Cart3dTest/test/axial-xy/ay.yl
index cf345158f..da09ee49f 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/ay.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/ay.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay y (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 6 32000006
+0 0 0 0 0 0 1 6 32000106
+0 0 0 0 0 0 2 6 32000206
+0 0 0 0 0 0 3 6 32000306
+0 0 0 0 0 0 4 6 32000406
+0 0 0 0 0 0 5 6 32000506
+0 0 0 0 0 0 6 6 32000606
+0 0 0 0 0 0 7 6 32000706
+0 0 0 0 0 0 8 6 32000806
+0 0 0 0 0 0 9 6 32000906
+0 0 0 0 0 0 10 6 32001006
-"Time = 0.000000
--0.150000 32000004.0000000000000
-0.150000 32000104.0000000000000
-0.450000 32000204.0000000000000
-0.750000 32000304.0000000000000
-1.050000 32000404.0000000000000
-1.350000 32000504.0000000000000
-1.650000 32000604.0000000000000
-1.950000 32000704.0000000000000
-2.250000 32000804.0000000000000
-2.550000 32000904.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 6 31000106
+1 0 0 0 0 0 1 6 32000106
+1 0 0 0 0 0 2 6 32000206
+1 0 0 0 0 0 3 6 32000306
+1 0 0 0 0 0 4 6 32000406
+1 0 0 0 0 0 5 6 32000506
+1 0 0 0 0 0 6 6 32000606
+1 0 0 0 0 0 7 6 32000706
+1 0 0 0 0 0 8 6 32000806
+1 0 0 0 0 0 9 6 32000906
+1 0 0 0 0 0 10 6 32001006
-"Time = 1.000000
--0.150000 -32000004.0000000000000
-0.150000 32000104.0000000000000
-0.450000 32000204.0000000000000
-0.750000 32000304.0000000000000
-1.050000 32000404.0000000000000
-1.350000 32000504.0000000000000
-1.650000 32000604.0000000000000
-1.950000 32000704.0000000000000
-2.250000 32000804.0000000000000
-2.550000 32000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/ay.zl b/CarpetAttic/Cart3dTest/test/axial-xy/ay.zl
index dd7c583e4..7667b9be8 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/ay.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/ay.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::ay z (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 32000100
+0 0 0 0 0 0 1 1 32000101
+0 0 0 0 0 0 1 2 32000102
+0 0 0 0 0 0 1 3 32000103
+0 0 0 0 0 0 1 4 32000104
+0 0 0 0 0 0 1 5 32000105
+0 0 0 0 0 0 1 6 32000106
+0 0 0 0 0 0 1 7 32000107
+0 0 0 0 0 0 1 8 32000108
+0 0 0 0 0 0 1 9 32000109
+0 0 0 0 0 0 1 10 32000110
+0 0 0 0 0 0 1 11 32000111
-"Time = 0.000000
--1.350000 32000100.0000000000000
--1.050000 32000101.0000000000000
--0.750000 32000102.0000000000000
--0.450000 32000103.0000000000000
--0.150000 32000104.0000000000000
-0.150000 32000105.0000000000000
-0.450000 32000106.0000000000000
-0.750000 32000107.0000000000000
-1.050000 32000108.0000000000000
-1.350000 32000109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 32000100
+1 0 0 0 0 0 1 1 32000101
+1 0 0 0 0 0 1 2 32000102
+1 0 0 0 0 0 1 3 32000103
+1 0 0 0 0 0 1 4 32000104
+1 0 0 0 0 0 1 5 32000105
+1 0 0 0 0 0 1 6 32000106
+1 0 0 0 0 0 1 7 32000107
+1 0 0 0 0 0 1 8 32000108
+1 0 0 0 0 0 1 9 32000109
+1 0 0 0 0 0 1 10 32000110
+1 0 0 0 0 0 1 11 32000111
-"Time = 1.000000
--1.350000 32000100.0000000000000
--1.050000 32000101.0000000000000
--0.750000 32000102.0000000000000
--0.450000 32000103.0000000000000
--0.150000 32000104.0000000000000
-0.150000 32000105.0000000000000
-0.450000 32000106.0000000000000
-0.750000 32000107.0000000000000
-1.050000 32000108.0000000000000
-1.350000 32000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/az.xl b/CarpetAttic/Cart3dTest/test/axial-xy/az.xl
index d61a9a60a..0ac0faf5b 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/az.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/az.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::az x (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 6 33000106
+0 0 0 0 0 1 1 6 33010106
+0 0 0 0 0 2 1 6 33020106
+0 0 0 0 0 3 1 6 33030106
+0 0 0 0 0 4 1 6 33040106
+0 0 0 0 0 5 1 6 33050106
+0 0 0 0 0 6 1 6 33060106
+0 0 0 0 0 7 1 6 33070106
+0 0 0 0 0 8 1 6 33080106
+0 0 0 0 0 9 1 6 33090106
-"Time = 0.000000
-0.150000 33000104.0000000000000
-0.450000 33010104.0000000000000
-0.750000 33020104.0000000000000
-1.050000 33030104.0000000000000
-1.350000 33040104.0000000000000
-1.650000 33050104.0000000000000
-1.950000 33060104.0000000000000
-2.250000 33070104.0000000000000
-2.550000 33080104.0000000000000
-2.850000 33090104.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 6 33000106
+1 0 0 0 0 1 1 6 33010106
+1 0 0 0 0 2 1 6 33020106
+1 0 0 0 0 3 1 6 33030106
+1 0 0 0 0 4 1 6 33040106
+1 0 0 0 0 5 1 6 33050106
+1 0 0 0 0 6 1 6 33060106
+1 0 0 0 0 7 1 6 33070106
+1 0 0 0 0 8 1 6 33080106
+1 0 0 0 0 9 1 6 33090106
-"Time = 1.000000
-0.150000 33000104.0000000000000
-0.450000 33010104.0000000000000
-0.750000 33020104.0000000000000
-1.050000 33030104.0000000000000
-1.350000 33040104.0000000000000
-1.650000 33050104.0000000000000
-1.950000 33060104.0000000000000
-2.250000 33070104.0000000000000
-2.550000 33080104.0000000000000
-2.850000 33090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/az.yl b/CarpetAttic/Cart3dTest/test/axial-xy/az.yl
index ee9a4975c..b1da729da 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/az.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/az.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::az y (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 6 33000006
+0 0 0 0 0 0 1 6 33000106
+0 0 0 0 0 0 2 6 33000206
+0 0 0 0 0 0 3 6 33000306
+0 0 0 0 0 0 4 6 33000406
+0 0 0 0 0 0 5 6 33000506
+0 0 0 0 0 0 6 6 33000606
+0 0 0 0 0 0 7 6 33000706
+0 0 0 0 0 0 8 6 33000806
+0 0 0 0 0 0 9 6 33000906
+0 0 0 0 0 0 10 6 33001006
-"Time = 0.000000
--0.150000 33000004.0000000000000
-0.150000 33000104.0000000000000
-0.450000 33000204.0000000000000
-0.750000 33000304.0000000000000
-1.050000 33000404.0000000000000
-1.350000 33000504.0000000000000
-1.650000 33000604.0000000000000
-1.950000 33000704.0000000000000
-2.250000 33000804.0000000000000
-2.550000 33000904.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 6 33000106
+1 0 0 0 0 0 1 6 33000106
+1 0 0 0 0 0 2 6 33000206
+1 0 0 0 0 0 3 6 33000306
+1 0 0 0 0 0 4 6 33000406
+1 0 0 0 0 0 5 6 33000506
+1 0 0 0 0 0 6 6 33000606
+1 0 0 0 0 0 7 6 33000706
+1 0 0 0 0 0 8 6 33000806
+1 0 0 0 0 0 9 6 33000906
+1 0 0 0 0 0 10 6 33001006
-"Time = 1.000000
--0.150000 33000004.0000000000000
-0.150000 33000104.0000000000000
-0.450000 33000204.0000000000000
-0.750000 33000304.0000000000000
-1.050000 33000404.0000000000000
-1.350000 33000504.0000000000000
-1.650000 33000604.0000000000000
-1.950000 33000704.0000000000000
-2.250000 33000804.0000000000000
-2.550000 33000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/az.zl b/CarpetAttic/Cart3dTest/test/axial-xy/az.zl
index 4b602f15d..501055464 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/az.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/az.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::az z (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 33000100
+0 0 0 0 0 0 1 1 33000101
+0 0 0 0 0 0 1 2 33000102
+0 0 0 0 0 0 1 3 33000103
+0 0 0 0 0 0 1 4 33000104
+0 0 0 0 0 0 1 5 33000105
+0 0 0 0 0 0 1 6 33000106
+0 0 0 0 0 0 1 7 33000107
+0 0 0 0 0 0 1 8 33000108
+0 0 0 0 0 0 1 9 33000109
+0 0 0 0 0 0 1 10 33000110
+0 0 0 0 0 0 1 11 33000111
-"Time = 0.000000
--1.350000 33000100.0000000000000
--1.050000 33000101.0000000000000
--0.750000 33000102.0000000000000
--0.450000 33000103.0000000000000
--0.150000 33000104.0000000000000
-0.150000 33000105.0000000000000
-0.450000 33000106.0000000000000
-0.750000 33000107.0000000000000
-1.050000 33000108.0000000000000
-1.350000 33000109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 33000100
+1 0 0 0 0 0 1 1 33000101
+1 0 0 0 0 0 1 2 33000102
+1 0 0 0 0 0 1 3 33000103
+1 0 0 0 0 0 1 4 33000104
+1 0 0 0 0 0 1 5 33000105
+1 0 0 0 0 0 1 6 33000106
+1 0 0 0 0 0 1 7 33000107
+1 0 0 0 0 0 1 8 33000108
+1 0 0 0 0 0 1 9 33000109
+1 0 0 0 0 0 1 10 33000110
+1 0 0 0 0 0 1 11 33000111
-"Time = 1.000000
--1.350000 33000100.0000000000000
--1.050000 33000101.0000000000000
--0.750000 33000102.0000000000000
--0.450000 33000103.0000000000000
--0.150000 33000104.0000000000000
-0.150000 33000105.0000000000000
-0.450000 33000106.0000000000000
-0.750000 33000107.0000000000000
-1.050000 33000108.0000000000000
-1.350000 33000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_x.xl b/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_x.xl
index 50fd6a322..14388dbd3 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_x.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_x.xl
@@ -1,26 +1,32 @@
+# GRID::cart3d_x x (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 6 0.15
+0 0 0 0 0 1 1 6 0.45
+0 0 0 0 0 2 1 6 0.75
+0 0 0 0 0 3 1 6 1.05
+0 0 0 0 0 4 1 6 1.35
+0 0 0 0 0 5 1 6 1.65
+0 0 0 0 0 6 1 6 1.95
+0 0 0 0 0 7 1 6 2.25
+0 0 0 0 0 8 1 6 2.55
+0 0 0 0 0 9 1 6 2.85
-"Time = 0.000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
-2.550000 2.5500000000000
-2.850000 2.8500000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 6 0.15
+1 0 0 0 0 1 1 6 0.45
+1 0 0 0 0 2 1 6 0.75
+1 0 0 0 0 3 1 6 1.05
+1 0 0 0 0 4 1 6 1.35
+1 0 0 0 0 5 1 6 1.65
+1 0 0 0 0 6 1 6 1.95
+1 0 0 0 0 7 1 6 2.25
+1 0 0 0 0 8 1 6 2.55
+1 0 0 0 0 9 1 6 2.85
-"Time = 1.000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
-2.550000 2.5500000000000
-2.850000 2.8500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_x.yl b/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_x.yl
index 042fd8cff..052327298 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_x.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_x.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x y (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 6 0.15
+0 0 0 0 0 0 1 6 0.15
+0 0 0 0 0 0 2 6 0.15
+0 0 0 0 0 0 3 6 0.15
+0 0 0 0 0 0 4 6 0.15
+0 0 0 0 0 0 5 6 0.15
+0 0 0 0 0 0 6 6 0.15
+0 0 0 0 0 0 7 6 0.15
+0 0 0 0 0 0 8 6 0.15
+0 0 0 0 0 0 9 6 0.15
+0 0 0 0 0 0 10 6 0.15
-"Time = 0.000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
-1.950000 0.1500000000000
-2.250000 0.1500000000000
-2.550000 0.1500000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 6 0.15
+1 0 0 0 0 0 1 6 0.15
+1 0 0 0 0 0 2 6 0.15
+1 0 0 0 0 0 3 6 0.15
+1 0 0 0 0 0 4 6 0.15
+1 0 0 0 0 0 5 6 0.15
+1 0 0 0 0 0 6 6 0.15
+1 0 0 0 0 0 7 6 0.15
+1 0 0 0 0 0 8 6 0.15
+1 0 0 0 0 0 9 6 0.15
+1 0 0 0 0 0 10 6 0.15
-"Time = 1.000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
-1.950000 0.1500000000000
-2.250000 0.1500000000000
-2.550000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_x.zl b/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_x.zl
index 9ec3cd5db..6a9d0fc6c 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_x.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_x.zl
@@ -1,26 +1,36 @@
+# GRID::cart3d_x z (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 0.15
+0 0 0 0 0 0 1 1 0.15
+0 0 0 0 0 0 1 2 0.15
+0 0 0 0 0 0 1 3 0.15
+0 0 0 0 0 0 1 4 0.15
+0 0 0 0 0 0 1 5 0.15
+0 0 0 0 0 0 1 6 0.15
+0 0 0 0 0 0 1 7 0.15
+0 0 0 0 0 0 1 8 0.15
+0 0 0 0 0 0 1 9 0.15
+0 0 0 0 0 0 1 10 0.15
+0 0 0 0 0 0 1 11 0.15
-"Time = 0.000000
--1.350000 0.1500000000000
--1.050000 0.1500000000000
--0.750000 0.1500000000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 0.15
+1 0 0 0 0 0 1 1 0.15
+1 0 0 0 0 0 1 2 0.15
+1 0 0 0 0 0 1 3 0.15
+1 0 0 0 0 0 1 4 0.15
+1 0 0 0 0 0 1 5 0.15
+1 0 0 0 0 0 1 6 0.15
+1 0 0 0 0 0 1 7 0.15
+1 0 0 0 0 0 1 8 0.15
+1 0 0 0 0 0 1 9 0.15
+1 0 0 0 0 0 1 10 0.15
+1 0 0 0 0 0 1 11 0.15
-"Time = 1.000000
--1.350000 0.1500000000000
--1.050000 0.1500000000000
--0.750000 0.1500000000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_y.xl b/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_y.xl
index 2dcde029c..f49b299a7 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_y.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_y.xl
@@ -1,26 +1,32 @@
+# GRID::cart3d_y x (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 6 0.15
+0 0 0 0 0 1 1 6 0.15
+0 0 0 0 0 2 1 6 0.15
+0 0 0 0 0 3 1 6 0.15
+0 0 0 0 0 4 1 6 0.15
+0 0 0 0 0 5 1 6 0.15
+0 0 0 0 0 6 1 6 0.15
+0 0 0 0 0 7 1 6 0.15
+0 0 0 0 0 8 1 6 0.15
+0 0 0 0 0 9 1 6 0.15
-"Time = 0.000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
-1.950000 0.1500000000000
-2.250000 0.1500000000000
-2.550000 0.1500000000000
-2.850000 0.1500000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 6 0.15
+1 0 0 0 0 1 1 6 0.15
+1 0 0 0 0 2 1 6 0.15
+1 0 0 0 0 3 1 6 0.15
+1 0 0 0 0 4 1 6 0.15
+1 0 0 0 0 5 1 6 0.15
+1 0 0 0 0 6 1 6 0.15
+1 0 0 0 0 7 1 6 0.15
+1 0 0 0 0 8 1 6 0.15
+1 0 0 0 0 9 1 6 0.15
-"Time = 1.000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
-1.950000 0.1500000000000
-2.250000 0.1500000000000
-2.550000 0.1500000000000
-2.850000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_y.yl b/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_y.yl
index b2abd0b7f..188fb2f10 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_y.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_y.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y y (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 6 -0.15
+0 0 0 0 0 0 1 6 0.15
+0 0 0 0 0 0 2 6 0.45
+0 0 0 0 0 0 3 6 0.75
+0 0 0 0 0 0 4 6 1.05
+0 0 0 0 0 0 5 6 1.35
+0 0 0 0 0 0 6 6 1.65
+0 0 0 0 0 0 7 6 1.95
+0 0 0 0 0 0 8 6 2.25
+0 0 0 0 0 0 9 6 2.55
+0 0 0 0 0 0 10 6 2.85
-"Time = 0.000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
-2.550000 2.5500000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 6 -0.15
+1 0 0 0 0 0 1 6 0.15
+1 0 0 0 0 0 2 6 0.45
+1 0 0 0 0 0 3 6 0.75
+1 0 0 0 0 0 4 6 1.05
+1 0 0 0 0 0 5 6 1.35
+1 0 0 0 0 0 6 6 1.65
+1 0 0 0 0 0 7 6 1.95
+1 0 0 0 0 0 8 6 2.25
+1 0 0 0 0 0 9 6 2.55
+1 0 0 0 0 0 10 6 2.85
-"Time = 1.000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
-2.550000 2.5500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_y.zl b/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_y.zl
index 9ec3cd5db..d819f9fa2 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_y.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_y.zl
@@ -1,26 +1,36 @@
+# GRID::cart3d_y z (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 0.15
+0 0 0 0 0 0 1 1 0.15
+0 0 0 0 0 0 1 2 0.15
+0 0 0 0 0 0 1 3 0.15
+0 0 0 0 0 0 1 4 0.15
+0 0 0 0 0 0 1 5 0.15
+0 0 0 0 0 0 1 6 0.15
+0 0 0 0 0 0 1 7 0.15
+0 0 0 0 0 0 1 8 0.15
+0 0 0 0 0 0 1 9 0.15
+0 0 0 0 0 0 1 10 0.15
+0 0 0 0 0 0 1 11 0.15
-"Time = 0.000000
--1.350000 0.1500000000000
--1.050000 0.1500000000000
--0.750000 0.1500000000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 0.15
+1 0 0 0 0 0 1 1 0.15
+1 0 0 0 0 0 1 2 0.15
+1 0 0 0 0 0 1 3 0.15
+1 0 0 0 0 0 1 4 0.15
+1 0 0 0 0 0 1 5 0.15
+1 0 0 0 0 0 1 6 0.15
+1 0 0 0 0 0 1 7 0.15
+1 0 0 0 0 0 1 8 0.15
+1 0 0 0 0 0 1 9 0.15
+1 0 0 0 0 0 1 10 0.15
+1 0 0 0 0 0 1 11 0.15
-"Time = 1.000000
--1.350000 0.1500000000000
--1.050000 0.1500000000000
--0.750000 0.1500000000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_z.xl b/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_z.xl
index f1d268a16..d719c11f8 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_z.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_z.xl
@@ -1,26 +1,32 @@
+# GRID::cart3d_z x (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 6 0.15
+0 0 0 0 0 1 1 6 0.15
+0 0 0 0 0 2 1 6 0.15
+0 0 0 0 0 3 1 6 0.15
+0 0 0 0 0 4 1 6 0.15
+0 0 0 0 0 5 1 6 0.15
+0 0 0 0 0 6 1 6 0.15
+0 0 0 0 0 7 1 6 0.15
+0 0 0 0 0 8 1 6 0.15
+0 0 0 0 0 9 1 6 0.15
-"Time = 0.000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
-2.850000 -0.1500000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 6 0.15
+1 0 0 0 0 1 1 6 0.15
+1 0 0 0 0 2 1 6 0.15
+1 0 0 0 0 3 1 6 0.15
+1 0 0 0 0 4 1 6 0.15
+1 0 0 0 0 5 1 6 0.15
+1 0 0 0 0 6 1 6 0.15
+1 0 0 0 0 7 1 6 0.15
+1 0 0 0 0 8 1 6 0.15
+1 0 0 0 0 9 1 6 0.15
-"Time = 1.000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
-2.850000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_z.yl b/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_z.yl
index 46363bcfd..4a391c014 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_z.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_z.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z y (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 6 0.15
+0 0 0 0 0 0 1 6 0.15
+0 0 0 0 0 0 2 6 0.15
+0 0 0 0 0 0 3 6 0.15
+0 0 0 0 0 0 4 6 0.15
+0 0 0 0 0 0 5 6 0.15
+0 0 0 0 0 0 6 6 0.15
+0 0 0 0 0 0 7 6 0.15
+0 0 0 0 0 0 8 6 0.15
+0 0 0 0 0 0 9 6 0.15
+0 0 0 0 0 0 10 6 0.15
-"Time = 0.000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 6 0.15
+1 0 0 0 0 0 1 6 0.15
+1 0 0 0 0 0 2 6 0.15
+1 0 0 0 0 0 3 6 0.15
+1 0 0 0 0 0 4 6 0.15
+1 0 0 0 0 0 5 6 0.15
+1 0 0 0 0 0 6 6 0.15
+1 0 0 0 0 0 7 6 0.15
+1 0 0 0 0 0 8 6 0.15
+1 0 0 0 0 0 9 6 0.15
+1 0 0 0 0 0 10 6 0.15
-"Time = 1.000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_z.zl b/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_z.zl
index 33b36d0af..8af59f210 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_z.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/cart3d_z.zl
@@ -1,26 +1,36 @@
+# GRID::cart3d_z z (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 -1.65
+0 0 0 0 0 0 1 1 -1.35
+0 0 0 0 0 0 1 2 -1.05
+0 0 0 0 0 0 1 3 -0.75
+0 0 0 0 0 0 1 4 -0.45
+0 0 0 0 0 0 1 5 -0.15
+0 0 0 0 0 0 1 6 0.15
+0 0 0 0 0 0 1 7 0.45
+0 0 0 0 0 0 1 8 0.75
+0 0 0 0 0 0 1 9 1.05
+0 0 0 0 0 0 1 10 1.35
+0 0 0 0 0 0 1 11 1.65
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 -1.65
+1 0 0 0 0 0 1 1 -1.35
+1 0 0 0 0 0 1 2 -1.05
+1 0 0 0 0 0 1 3 -0.75
+1 0 0 0 0 0 1 4 -0.45
+1 0 0 0 0 0 1 5 -0.15
+1 0 0 0 0 0 1 6 0.15
+1 0 0 0 0 0 1 7 0.45
+1 0 0 0 0 0 1 8 0.75
+1 0 0 0 0 0 1 9 1.05
+1 0 0 0 0 0 1 10 1.35
+1 0 0 0 0 0 1 11 1.65
-"Time = 1.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/fxx.xl b/CarpetAttic/Cart3dTest/test/axial-xy/fxx.xl
index cf7a8400a..5578e6ccf 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/fxx.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/fxx.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::fxx x (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 6 41000106
+0 0 0 0 0 1 1 6 41010106
+0 0 0 0 0 2 1 6 41020106
+0 0 0 0 0 3 1 6 41030106
+0 0 0 0 0 4 1 6 41040106
+0 0 0 0 0 5 1 6 41050106
+0 0 0 0 0 6 1 6 41060106
+0 0 0 0 0 7 1 6 41070106
+0 0 0 0 0 8 1 6 41080106
+0 0 0 0 0 9 1 6 41090106
-"Time = 0.000000
-0.150000 41000104.0000000000000
-0.450000 41010104.0000000000000
-0.750000 41020104.0000000000000
-1.050000 41030104.0000000000000
-1.350000 41040104.0000000000000
-1.650000 41050104.0000000000000
-1.950000 41060104.0000000000000
-2.250000 41070104.0000000000000
-2.550000 41080104.0000000000000
-2.850000 41090104.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 6 41000106
+1 0 0 0 0 1 1 6 41010106
+1 0 0 0 0 2 1 6 41020106
+1 0 0 0 0 3 1 6 41030106
+1 0 0 0 0 4 1 6 41040106
+1 0 0 0 0 5 1 6 41050106
+1 0 0 0 0 6 1 6 41060106
+1 0 0 0 0 7 1 6 41070106
+1 0 0 0 0 8 1 6 41080106
+1 0 0 0 0 9 1 6 41090106
-"Time = 1.000000
-0.150000 41000104.0000000000000
-0.450000 41010104.0000000000000
-0.750000 41020104.0000000000000
-1.050000 41030104.0000000000000
-1.350000 41040104.0000000000000
-1.650000 41050104.0000000000000
-1.950000 41060104.0000000000000
-2.250000 41070104.0000000000000
-2.550000 41080104.0000000000000
-2.850000 41090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/fxx.yl b/CarpetAttic/Cart3dTest/test/axial-xy/fxx.yl
index e6b360a63..666b88179 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/fxx.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/fxx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx y (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 6 41000006
+0 0 0 0 0 0 1 6 41000106
+0 0 0 0 0 0 2 6 41000206
+0 0 0 0 0 0 3 6 41000306
+0 0 0 0 0 0 4 6 41000406
+0 0 0 0 0 0 5 6 41000506
+0 0 0 0 0 0 6 6 41000606
+0 0 0 0 0 0 7 6 41000706
+0 0 0 0 0 0 8 6 41000806
+0 0 0 0 0 0 9 6 41000906
+0 0 0 0 0 0 10 6 41001006
-"Time = 0.000000
--0.150000 41000004.0000000000000
-0.150000 41000104.0000000000000
-0.450000 41000204.0000000000000
-0.750000 41000304.0000000000000
-1.050000 41000404.0000000000000
-1.350000 41000504.0000000000000
-1.650000 41000604.0000000000000
-1.950000 41000704.0000000000000
-2.250000 41000804.0000000000000
-2.550000 41000904.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 6 45000106
+1 0 0 0 0 0 1 6 41000106
+1 0 0 0 0 0 2 6 41000206
+1 0 0 0 0 0 3 6 41000306
+1 0 0 0 0 0 4 6 41000406
+1 0 0 0 0 0 5 6 41000506
+1 0 0 0 0 0 6 6 41000606
+1 0 0 0 0 0 7 6 41000706
+1 0 0 0 0 0 8 6 41000806
+1 0 0 0 0 0 9 6 41000906
+1 0 0 0 0 0 10 6 41001006
-"Time = 1.000000
--0.150000 45000004.0000000000000
-0.150000 41000104.0000000000000
-0.450000 41000204.0000000000000
-0.750000 41000304.0000000000000
-1.050000 41000404.0000000000000
-1.350000 41000504.0000000000000
-1.650000 41000604.0000000000000
-1.950000 41000704.0000000000000
-2.250000 41000804.0000000000000
-2.550000 41000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/fxx.zl b/CarpetAttic/Cart3dTest/test/axial-xy/fxx.zl
index 159bff286..5d00e7a07 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/fxx.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/fxx.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::fxx z (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 41000100
+0 0 0 0 0 0 1 1 41000101
+0 0 0 0 0 0 1 2 41000102
+0 0 0 0 0 0 1 3 41000103
+0 0 0 0 0 0 1 4 41000104
+0 0 0 0 0 0 1 5 41000105
+0 0 0 0 0 0 1 6 41000106
+0 0 0 0 0 0 1 7 41000107
+0 0 0 0 0 0 1 8 41000108
+0 0 0 0 0 0 1 9 41000109
+0 0 0 0 0 0 1 10 41000110
+0 0 0 0 0 0 1 11 41000111
-"Time = 0.000000
--1.350000 41000100.0000000000000
--1.050000 41000101.0000000000000
--0.750000 41000102.0000000000000
--0.450000 41000103.0000000000000
--0.150000 41000104.0000000000000
-0.150000 41000105.0000000000000
-0.450000 41000106.0000000000000
-0.750000 41000107.0000000000000
-1.050000 41000108.0000000000000
-1.350000 41000109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 41000100
+1 0 0 0 0 0 1 1 41000101
+1 0 0 0 0 0 1 2 41000102
+1 0 0 0 0 0 1 3 41000103
+1 0 0 0 0 0 1 4 41000104
+1 0 0 0 0 0 1 5 41000105
+1 0 0 0 0 0 1 6 41000106
+1 0 0 0 0 0 1 7 41000107
+1 0 0 0 0 0 1 8 41000108
+1 0 0 0 0 0 1 9 41000109
+1 0 0 0 0 0 1 10 41000110
+1 0 0 0 0 0 1 11 41000111
-"Time = 1.000000
--1.350000 41000100.0000000000000
--1.050000 41000101.0000000000000
--0.750000 41000102.0000000000000
--0.450000 41000103.0000000000000
--0.150000 41000104.0000000000000
-0.150000 41000105.0000000000000
-0.450000 41000106.0000000000000
-0.750000 41000107.0000000000000
-1.050000 41000108.0000000000000
-1.350000 41000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/fxy.xl b/CarpetAttic/Cart3dTest/test/axial-xy/fxy.xl
index b657d9cc8..4ecd6d861 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/fxy.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/fxy.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::fxy x (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 6 42000106
+0 0 0 0 0 1 1 6 42010106
+0 0 0 0 0 2 1 6 42020106
+0 0 0 0 0 3 1 6 42030106
+0 0 0 0 0 4 1 6 42040106
+0 0 0 0 0 5 1 6 42050106
+0 0 0 0 0 6 1 6 42060106
+0 0 0 0 0 7 1 6 42070106
+0 0 0 0 0 8 1 6 42080106
+0 0 0 0 0 9 1 6 42090106
-"Time = 0.000000
-0.150000 42000104.0000000000000
-0.450000 42010104.0000000000000
-0.750000 42020104.0000000000000
-1.050000 42030104.0000000000000
-1.350000 42040104.0000000000000
-1.650000 42050104.0000000000000
-1.950000 42060104.0000000000000
-2.250000 42070104.0000000000000
-2.550000 42080104.0000000000000
-2.850000 42090104.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 6 42000106
+1 0 0 0 0 1 1 6 42010106
+1 0 0 0 0 2 1 6 42020106
+1 0 0 0 0 3 1 6 42030106
+1 0 0 0 0 4 1 6 42040106
+1 0 0 0 0 5 1 6 42050106
+1 0 0 0 0 6 1 6 42060106
+1 0 0 0 0 7 1 6 42070106
+1 0 0 0 0 8 1 6 42080106
+1 0 0 0 0 9 1 6 42090106
-"Time = 1.000000
-0.150000 42000104.0000000000000
-0.450000 42010104.0000000000000
-0.750000 42020104.0000000000000
-1.050000 42030104.0000000000000
-1.350000 42040104.0000000000000
-1.650000 42050104.0000000000000
-1.950000 42060104.0000000000000
-2.250000 42070104.0000000000000
-2.550000 42080104.0000000000000
-2.850000 42090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/fxy.yl b/CarpetAttic/Cart3dTest/test/axial-xy/fxy.yl
index 520a5dfb4..d2b9d020d 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/fxy.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/fxy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy y (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 6 42000006
+0 0 0 0 0 0 1 6 42000106
+0 0 0 0 0 0 2 6 42000206
+0 0 0 0 0 0 3 6 42000306
+0 0 0 0 0 0 4 6 42000406
+0 0 0 0 0 0 5 6 42000506
+0 0 0 0 0 0 6 6 42000606
+0 0 0 0 0 0 7 6 42000706
+0 0 0 0 0 0 8 6 42000806
+0 0 0 0 0 0 9 6 42000906
+0 0 0 0 0 0 10 6 42001006
-"Time = 0.000000
--0.150000 42000004.0000000000000
-0.150000 42000104.0000000000000
-0.450000 42000204.0000000000000
-0.750000 42000304.0000000000000
-1.050000 42000404.0000000000000
-1.350000 42000504.0000000000000
-1.650000 42000604.0000000000000
-1.950000 42000704.0000000000000
-2.250000 42000804.0000000000000
-2.550000 42000904.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 6 -44000106
+1 0 0 0 0 0 1 6 42000106
+1 0 0 0 0 0 2 6 42000206
+1 0 0 0 0 0 3 6 42000306
+1 0 0 0 0 0 4 6 42000406
+1 0 0 0 0 0 5 6 42000506
+1 0 0 0 0 0 6 6 42000606
+1 0 0 0 0 0 7 6 42000706
+1 0 0 0 0 0 8 6 42000806
+1 0 0 0 0 0 9 6 42000906
+1 0 0 0 0 0 10 6 42001006
-"Time = 1.000000
--0.150000 -44000004.0000000000000
-0.150000 42000104.0000000000000
-0.450000 42000204.0000000000000
-0.750000 42000304.0000000000000
-1.050000 42000404.0000000000000
-1.350000 42000504.0000000000000
-1.650000 42000604.0000000000000
-1.950000 42000704.0000000000000
-2.250000 42000804.0000000000000
-2.550000 42000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/fxy.zl b/CarpetAttic/Cart3dTest/test/axial-xy/fxy.zl
index 169b3f233..d33b031d7 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/fxy.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/fxy.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::fxy z (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 42000100
+0 0 0 0 0 0 1 1 42000101
+0 0 0 0 0 0 1 2 42000102
+0 0 0 0 0 0 1 3 42000103
+0 0 0 0 0 0 1 4 42000104
+0 0 0 0 0 0 1 5 42000105
+0 0 0 0 0 0 1 6 42000106
+0 0 0 0 0 0 1 7 42000107
+0 0 0 0 0 0 1 8 42000108
+0 0 0 0 0 0 1 9 42000109
+0 0 0 0 0 0 1 10 42000110
+0 0 0 0 0 0 1 11 42000111
-"Time = 0.000000
--1.350000 42000100.0000000000000
--1.050000 42000101.0000000000000
--0.750000 42000102.0000000000000
--0.450000 42000103.0000000000000
--0.150000 42000104.0000000000000
-0.150000 42000105.0000000000000
-0.450000 42000106.0000000000000
-0.750000 42000107.0000000000000
-1.050000 42000108.0000000000000
-1.350000 42000109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 42000100
+1 0 0 0 0 0 1 1 42000101
+1 0 0 0 0 0 1 2 42000102
+1 0 0 0 0 0 1 3 42000103
+1 0 0 0 0 0 1 4 42000104
+1 0 0 0 0 0 1 5 42000105
+1 0 0 0 0 0 1 6 42000106
+1 0 0 0 0 0 1 7 42000107
+1 0 0 0 0 0 1 8 42000108
+1 0 0 0 0 0 1 9 42000109
+1 0 0 0 0 0 1 10 42000110
+1 0 0 0 0 0 1 11 42000111
-"Time = 1.000000
--1.350000 42000100.0000000000000
--1.050000 42000101.0000000000000
--0.750000 42000102.0000000000000
--0.450000 42000103.0000000000000
--0.150000 42000104.0000000000000
-0.150000 42000105.0000000000000
-0.450000 42000106.0000000000000
-0.750000 42000107.0000000000000
-1.050000 42000108.0000000000000
-1.350000 42000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/fxz.xl b/CarpetAttic/Cart3dTest/test/axial-xy/fxz.xl
index af4975850..754816aa2 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/fxz.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/fxz.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::fxz x (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 6 43000106
+0 0 0 0 0 1 1 6 43010106
+0 0 0 0 0 2 1 6 43020106
+0 0 0 0 0 3 1 6 43030106
+0 0 0 0 0 4 1 6 43040106
+0 0 0 0 0 5 1 6 43050106
+0 0 0 0 0 6 1 6 43060106
+0 0 0 0 0 7 1 6 43070106
+0 0 0 0 0 8 1 6 43080106
+0 0 0 0 0 9 1 6 43090106
-"Time = 0.000000
-0.150000 43000104.0000000000000
-0.450000 43010104.0000000000000
-0.750000 43020104.0000000000000
-1.050000 43030104.0000000000000
-1.350000 43040104.0000000000000
-1.650000 43050104.0000000000000
-1.950000 43060104.0000000000000
-2.250000 43070104.0000000000000
-2.550000 43080104.0000000000000
-2.850000 43090104.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 6 43000106
+1 0 0 0 0 1 1 6 43010106
+1 0 0 0 0 2 1 6 43020106
+1 0 0 0 0 3 1 6 43030106
+1 0 0 0 0 4 1 6 43040106
+1 0 0 0 0 5 1 6 43050106
+1 0 0 0 0 6 1 6 43060106
+1 0 0 0 0 7 1 6 43070106
+1 0 0 0 0 8 1 6 43080106
+1 0 0 0 0 9 1 6 43090106
-"Time = 1.000000
-0.150000 43000104.0000000000000
-0.450000 43010104.0000000000000
-0.750000 43020104.0000000000000
-1.050000 43030104.0000000000000
-1.350000 43040104.0000000000000
-1.650000 43050104.0000000000000
-1.950000 43060104.0000000000000
-2.250000 43070104.0000000000000
-2.550000 43080104.0000000000000
-2.850000 43090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/fxz.yl b/CarpetAttic/Cart3dTest/test/axial-xy/fxz.yl
index 561e0198f..4b6b98dcc 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/fxz.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/fxz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz y (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 6 43000006
+0 0 0 0 0 0 1 6 43000106
+0 0 0 0 0 0 2 6 43000206
+0 0 0 0 0 0 3 6 43000306
+0 0 0 0 0 0 4 6 43000406
+0 0 0 0 0 0 5 6 43000506
+0 0 0 0 0 0 6 6 43000606
+0 0 0 0 0 0 7 6 43000706
+0 0 0 0 0 0 8 6 43000806
+0 0 0 0 0 0 9 6 43000906
+0 0 0 0 0 0 10 6 43001006
-"Time = 0.000000
--0.150000 43000004.0000000000000
-0.150000 43000104.0000000000000
-0.450000 43000204.0000000000000
-0.750000 43000304.0000000000000
-1.050000 43000404.0000000000000
-1.350000 43000504.0000000000000
-1.650000 43000604.0000000000000
-1.950000 43000704.0000000000000
-2.250000 43000804.0000000000000
-2.550000 43000904.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 6 46000106
+1 0 0 0 0 0 1 6 43000106
+1 0 0 0 0 0 2 6 43000206
+1 0 0 0 0 0 3 6 43000306
+1 0 0 0 0 0 4 6 43000406
+1 0 0 0 0 0 5 6 43000506
+1 0 0 0 0 0 6 6 43000606
+1 0 0 0 0 0 7 6 43000706
+1 0 0 0 0 0 8 6 43000806
+1 0 0 0 0 0 9 6 43000906
+1 0 0 0 0 0 10 6 43001006
-"Time = 1.000000
--0.150000 46000004.0000000000000
-0.150000 43000104.0000000000000
-0.450000 43000204.0000000000000
-0.750000 43000304.0000000000000
-1.050000 43000404.0000000000000
-1.350000 43000504.0000000000000
-1.650000 43000604.0000000000000
-1.950000 43000704.0000000000000
-2.250000 43000804.0000000000000
-2.550000 43000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/fxz.zl b/CarpetAttic/Cart3dTest/test/axial-xy/fxz.zl
index 1fef8a20b..62813dade 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/fxz.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/fxz.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::fxz z (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 43000100
+0 0 0 0 0 0 1 1 43000101
+0 0 0 0 0 0 1 2 43000102
+0 0 0 0 0 0 1 3 43000103
+0 0 0 0 0 0 1 4 43000104
+0 0 0 0 0 0 1 5 43000105
+0 0 0 0 0 0 1 6 43000106
+0 0 0 0 0 0 1 7 43000107
+0 0 0 0 0 0 1 8 43000108
+0 0 0 0 0 0 1 9 43000109
+0 0 0 0 0 0 1 10 43000110
+0 0 0 0 0 0 1 11 43000111
-"Time = 0.000000
--1.350000 43000100.0000000000000
--1.050000 43000101.0000000000000
--0.750000 43000102.0000000000000
--0.450000 43000103.0000000000000
--0.150000 43000104.0000000000000
-0.150000 43000105.0000000000000
-0.450000 43000106.0000000000000
-0.750000 43000107.0000000000000
-1.050000 43000108.0000000000000
-1.350000 43000109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 43000100
+1 0 0 0 0 0 1 1 43000101
+1 0 0 0 0 0 1 2 43000102
+1 0 0 0 0 0 1 3 43000103
+1 0 0 0 0 0 1 4 43000104
+1 0 0 0 0 0 1 5 43000105
+1 0 0 0 0 0 1 6 43000106
+1 0 0 0 0 0 1 7 43000107
+1 0 0 0 0 0 1 8 43000108
+1 0 0 0 0 0 1 9 43000109
+1 0 0 0 0 0 1 10 43000110
+1 0 0 0 0 0 1 11 43000111
-"Time = 1.000000
--1.350000 43000100.0000000000000
--1.050000 43000101.0000000000000
--0.750000 43000102.0000000000000
--0.450000 43000103.0000000000000
--0.150000 43000104.0000000000000
-0.150000 43000105.0000000000000
-0.450000 43000106.0000000000000
-0.750000 43000107.0000000000000
-1.050000 43000108.0000000000000
-1.350000 43000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/fyx.xl b/CarpetAttic/Cart3dTest/test/axial-xy/fyx.xl
index e7ea16cc5..5a928f1e5 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/fyx.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/fyx.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::fyx x (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 6 44000106
+0 0 0 0 0 1 1 6 44010106
+0 0 0 0 0 2 1 6 44020106
+0 0 0 0 0 3 1 6 44030106
+0 0 0 0 0 4 1 6 44040106
+0 0 0 0 0 5 1 6 44050106
+0 0 0 0 0 6 1 6 44060106
+0 0 0 0 0 7 1 6 44070106
+0 0 0 0 0 8 1 6 44080106
+0 0 0 0 0 9 1 6 44090106
-"Time = 0.000000
-0.150000 44000104.0000000000000
-0.450000 44010104.0000000000000
-0.750000 44020104.0000000000000
-1.050000 44030104.0000000000000
-1.350000 44040104.0000000000000
-1.650000 44050104.0000000000000
-1.950000 44060104.0000000000000
-2.250000 44070104.0000000000000
-2.550000 44080104.0000000000000
-2.850000 44090104.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 6 44000106
+1 0 0 0 0 1 1 6 44010106
+1 0 0 0 0 2 1 6 44020106
+1 0 0 0 0 3 1 6 44030106
+1 0 0 0 0 4 1 6 44040106
+1 0 0 0 0 5 1 6 44050106
+1 0 0 0 0 6 1 6 44060106
+1 0 0 0 0 7 1 6 44070106
+1 0 0 0 0 8 1 6 44080106
+1 0 0 0 0 9 1 6 44090106
-"Time = 1.000000
-0.150000 44000104.0000000000000
-0.450000 44010104.0000000000000
-0.750000 44020104.0000000000000
-1.050000 44030104.0000000000000
-1.350000 44040104.0000000000000
-1.650000 44050104.0000000000000
-1.950000 44060104.0000000000000
-2.250000 44070104.0000000000000
-2.550000 44080104.0000000000000
-2.850000 44090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/fyx.yl b/CarpetAttic/Cart3dTest/test/axial-xy/fyx.yl
index c1ab10289..99317da73 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/fyx.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/fyx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx y (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 6 44000006
+0 0 0 0 0 0 1 6 44000106
+0 0 0 0 0 0 2 6 44000206
+0 0 0 0 0 0 3 6 44000306
+0 0 0 0 0 0 4 6 44000406
+0 0 0 0 0 0 5 6 44000506
+0 0 0 0 0 0 6 6 44000606
+0 0 0 0 0 0 7 6 44000706
+0 0 0 0 0 0 8 6 44000806
+0 0 0 0 0 0 9 6 44000906
+0 0 0 0 0 0 10 6 44001006
-"Time = 0.000000
--0.150000 44000004.0000000000000
-0.150000 44000104.0000000000000
-0.450000 44000204.0000000000000
-0.750000 44000304.0000000000000
-1.050000 44000404.0000000000000
-1.350000 44000504.0000000000000
-1.650000 44000604.0000000000000
-1.950000 44000704.0000000000000
-2.250000 44000804.0000000000000
-2.550000 44000904.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 6 -42000106
+1 0 0 0 0 0 1 6 44000106
+1 0 0 0 0 0 2 6 44000206
+1 0 0 0 0 0 3 6 44000306
+1 0 0 0 0 0 4 6 44000406
+1 0 0 0 0 0 5 6 44000506
+1 0 0 0 0 0 6 6 44000606
+1 0 0 0 0 0 7 6 44000706
+1 0 0 0 0 0 8 6 44000806
+1 0 0 0 0 0 9 6 44000906
+1 0 0 0 0 0 10 6 44001006
-"Time = 1.000000
--0.150000 44000004.0000000000000
-0.150000 44000104.0000000000000
-0.450000 44000204.0000000000000
-0.750000 44000304.0000000000000
-1.050000 44000404.0000000000000
-1.350000 44000504.0000000000000
-1.650000 44000604.0000000000000
-1.950000 44000704.0000000000000
-2.250000 44000804.0000000000000
-2.550000 44000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/fyx.zl b/CarpetAttic/Cart3dTest/test/axial-xy/fyx.zl
index a799e7ba5..35de7c246 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/fyx.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/fyx.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::fyx z (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 44000100
+0 0 0 0 0 0 1 1 44000101
+0 0 0 0 0 0 1 2 44000102
+0 0 0 0 0 0 1 3 44000103
+0 0 0 0 0 0 1 4 44000104
+0 0 0 0 0 0 1 5 44000105
+0 0 0 0 0 0 1 6 44000106
+0 0 0 0 0 0 1 7 44000107
+0 0 0 0 0 0 1 8 44000108
+0 0 0 0 0 0 1 9 44000109
+0 0 0 0 0 0 1 10 44000110
+0 0 0 0 0 0 1 11 44000111
-"Time = 0.000000
--1.350000 44000100.0000000000000
--1.050000 44000101.0000000000000
--0.750000 44000102.0000000000000
--0.450000 44000103.0000000000000
--0.150000 44000104.0000000000000
-0.150000 44000105.0000000000000
-0.450000 44000106.0000000000000
-0.750000 44000107.0000000000000
-1.050000 44000108.0000000000000
-1.350000 44000109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 44000100
+1 0 0 0 0 0 1 1 44000101
+1 0 0 0 0 0 1 2 44000102
+1 0 0 0 0 0 1 3 44000103
+1 0 0 0 0 0 1 4 44000104
+1 0 0 0 0 0 1 5 44000105
+1 0 0 0 0 0 1 6 44000106
+1 0 0 0 0 0 1 7 44000107
+1 0 0 0 0 0 1 8 44000108
+1 0 0 0 0 0 1 9 44000109
+1 0 0 0 0 0 1 10 44000110
+1 0 0 0 0 0 1 11 44000111
-"Time = 1.000000
--1.350000 44000100.0000000000000
--1.050000 44000101.0000000000000
--0.750000 44000102.0000000000000
--0.450000 44000103.0000000000000
--0.150000 44000104.0000000000000
-0.150000 44000105.0000000000000
-0.450000 44000106.0000000000000
-0.750000 44000107.0000000000000
-1.050000 44000108.0000000000000
-1.350000 44000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/fyy.xl b/CarpetAttic/Cart3dTest/test/axial-xy/fyy.xl
index ae1e70d7d..912b91ab0 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/fyy.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/fyy.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::fyy x (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 6 45000106
+0 0 0 0 0 1 1 6 45010106
+0 0 0 0 0 2 1 6 45020106
+0 0 0 0 0 3 1 6 45030106
+0 0 0 0 0 4 1 6 45040106
+0 0 0 0 0 5 1 6 45050106
+0 0 0 0 0 6 1 6 45060106
+0 0 0 0 0 7 1 6 45070106
+0 0 0 0 0 8 1 6 45080106
+0 0 0 0 0 9 1 6 45090106
-"Time = 0.000000
-0.150000 45000104.0000000000000
-0.450000 45010104.0000000000000
-0.750000 45020104.0000000000000
-1.050000 45030104.0000000000000
-1.350000 45040104.0000000000000
-1.650000 45050104.0000000000000
-1.950000 45060104.0000000000000
-2.250000 45070104.0000000000000
-2.550000 45080104.0000000000000
-2.850000 45090104.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 6 45000106
+1 0 0 0 0 1 1 6 45010106
+1 0 0 0 0 2 1 6 45020106
+1 0 0 0 0 3 1 6 45030106
+1 0 0 0 0 4 1 6 45040106
+1 0 0 0 0 5 1 6 45050106
+1 0 0 0 0 6 1 6 45060106
+1 0 0 0 0 7 1 6 45070106
+1 0 0 0 0 8 1 6 45080106
+1 0 0 0 0 9 1 6 45090106
-"Time = 1.000000
-0.150000 45000104.0000000000000
-0.450000 45010104.0000000000000
-0.750000 45020104.0000000000000
-1.050000 45030104.0000000000000
-1.350000 45040104.0000000000000
-1.650000 45050104.0000000000000
-1.950000 45060104.0000000000000
-2.250000 45070104.0000000000000
-2.550000 45080104.0000000000000
-2.850000 45090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/fyy.yl b/CarpetAttic/Cart3dTest/test/axial-xy/fyy.yl
index 8919b1f4e..c2c4d25ca 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/fyy.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/fyy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy y (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 6 45000006
+0 0 0 0 0 0 1 6 45000106
+0 0 0 0 0 0 2 6 45000206
+0 0 0 0 0 0 3 6 45000306
+0 0 0 0 0 0 4 6 45000406
+0 0 0 0 0 0 5 6 45000506
+0 0 0 0 0 0 6 6 45000606
+0 0 0 0 0 0 7 6 45000706
+0 0 0 0 0 0 8 6 45000806
+0 0 0 0 0 0 9 6 45000906
+0 0 0 0 0 0 10 6 45001006
-"Time = 0.000000
--0.150000 45000004.0000000000000
-0.150000 45000104.0000000000000
-0.450000 45000204.0000000000000
-0.750000 45000304.0000000000000
-1.050000 45000404.0000000000000
-1.350000 45000504.0000000000000
-1.650000 45000604.0000000000000
-1.950000 45000704.0000000000000
-2.250000 45000804.0000000000000
-2.550000 45000904.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 6 41000106
+1 0 0 0 0 0 1 6 45000106
+1 0 0 0 0 0 2 6 45000206
+1 0 0 0 0 0 3 6 45000306
+1 0 0 0 0 0 4 6 45000406
+1 0 0 0 0 0 5 6 45000506
+1 0 0 0 0 0 6 6 45000606
+1 0 0 0 0 0 7 6 45000706
+1 0 0 0 0 0 8 6 45000806
+1 0 0 0 0 0 9 6 45000906
+1 0 0 0 0 0 10 6 45001006
-"Time = 1.000000
--0.150000 45000004.0000000000000
-0.150000 45000104.0000000000000
-0.450000 45000204.0000000000000
-0.750000 45000304.0000000000000
-1.050000 45000404.0000000000000
-1.350000 45000504.0000000000000
-1.650000 45000604.0000000000000
-1.950000 45000704.0000000000000
-2.250000 45000804.0000000000000
-2.550000 45000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/fyy.zl b/CarpetAttic/Cart3dTest/test/axial-xy/fyy.zl
index e076b783b..bdd9bae4e 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/fyy.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/fyy.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::fyy z (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 45000100
+0 0 0 0 0 0 1 1 45000101
+0 0 0 0 0 0 1 2 45000102
+0 0 0 0 0 0 1 3 45000103
+0 0 0 0 0 0 1 4 45000104
+0 0 0 0 0 0 1 5 45000105
+0 0 0 0 0 0 1 6 45000106
+0 0 0 0 0 0 1 7 45000107
+0 0 0 0 0 0 1 8 45000108
+0 0 0 0 0 0 1 9 45000109
+0 0 0 0 0 0 1 10 45000110
+0 0 0 0 0 0 1 11 45000111
-"Time = 0.000000
--1.350000 45000100.0000000000000
--1.050000 45000101.0000000000000
--0.750000 45000102.0000000000000
--0.450000 45000103.0000000000000
--0.150000 45000104.0000000000000
-0.150000 45000105.0000000000000
-0.450000 45000106.0000000000000
-0.750000 45000107.0000000000000
-1.050000 45000108.0000000000000
-1.350000 45000109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 45000100
+1 0 0 0 0 0 1 1 45000101
+1 0 0 0 0 0 1 2 45000102
+1 0 0 0 0 0 1 3 45000103
+1 0 0 0 0 0 1 4 45000104
+1 0 0 0 0 0 1 5 45000105
+1 0 0 0 0 0 1 6 45000106
+1 0 0 0 0 0 1 7 45000107
+1 0 0 0 0 0 1 8 45000108
+1 0 0 0 0 0 1 9 45000109
+1 0 0 0 0 0 1 10 45000110
+1 0 0 0 0 0 1 11 45000111
-"Time = 1.000000
--1.350000 45000100.0000000000000
--1.050000 45000101.0000000000000
--0.750000 45000102.0000000000000
--0.450000 45000103.0000000000000
--0.150000 45000104.0000000000000
-0.150000 45000105.0000000000000
-0.450000 45000106.0000000000000
-0.750000 45000107.0000000000000
-1.050000 45000108.0000000000000
-1.350000 45000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/fyz.xl b/CarpetAttic/Cart3dTest/test/axial-xy/fyz.xl
index 6df306349..c95ddca38 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/fyz.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/fyz.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::fyz x (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 6 46000106
+0 0 0 0 0 1 1 6 46010106
+0 0 0 0 0 2 1 6 46020106
+0 0 0 0 0 3 1 6 46030106
+0 0 0 0 0 4 1 6 46040106
+0 0 0 0 0 5 1 6 46050106
+0 0 0 0 0 6 1 6 46060106
+0 0 0 0 0 7 1 6 46070106
+0 0 0 0 0 8 1 6 46080106
+0 0 0 0 0 9 1 6 46090106
-"Time = 0.000000
-0.150000 46000104.0000000000000
-0.450000 46010104.0000000000000
-0.750000 46020104.0000000000000
-1.050000 46030104.0000000000000
-1.350000 46040104.0000000000000
-1.650000 46050104.0000000000000
-1.950000 46060104.0000000000000
-2.250000 46070104.0000000000000
-2.550000 46080104.0000000000000
-2.850000 46090104.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 6 46000106
+1 0 0 0 0 1 1 6 46010106
+1 0 0 0 0 2 1 6 46020106
+1 0 0 0 0 3 1 6 46030106
+1 0 0 0 0 4 1 6 46040106
+1 0 0 0 0 5 1 6 46050106
+1 0 0 0 0 6 1 6 46060106
+1 0 0 0 0 7 1 6 46070106
+1 0 0 0 0 8 1 6 46080106
+1 0 0 0 0 9 1 6 46090106
-"Time = 1.000000
-0.150000 46000104.0000000000000
-0.450000 46010104.0000000000000
-0.750000 46020104.0000000000000
-1.050000 46030104.0000000000000
-1.350000 46040104.0000000000000
-1.650000 46050104.0000000000000
-1.950000 46060104.0000000000000
-2.250000 46070104.0000000000000
-2.550000 46080104.0000000000000
-2.850000 46090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/fyz.yl b/CarpetAttic/Cart3dTest/test/axial-xy/fyz.yl
index 7818376b1..f33763221 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/fyz.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/fyz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz y (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 6 46000006
+0 0 0 0 0 0 1 6 46000106
+0 0 0 0 0 0 2 6 46000206
+0 0 0 0 0 0 3 6 46000306
+0 0 0 0 0 0 4 6 46000406
+0 0 0 0 0 0 5 6 46000506
+0 0 0 0 0 0 6 6 46000606
+0 0 0 0 0 0 7 6 46000706
+0 0 0 0 0 0 8 6 46000806
+0 0 0 0 0 0 9 6 46000906
+0 0 0 0 0 0 10 6 46001006
-"Time = 0.000000
--0.150000 46000004.0000000000000
-0.150000 46000104.0000000000000
-0.450000 46000204.0000000000000
-0.750000 46000304.0000000000000
-1.050000 46000404.0000000000000
-1.350000 46000504.0000000000000
-1.650000 46000604.0000000000000
-1.950000 46000704.0000000000000
-2.250000 46000804.0000000000000
-2.550000 46000904.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 6 -43000106
+1 0 0 0 0 0 1 6 46000106
+1 0 0 0 0 0 2 6 46000206
+1 0 0 0 0 0 3 6 46000306
+1 0 0 0 0 0 4 6 46000406
+1 0 0 0 0 0 5 6 46000506
+1 0 0 0 0 0 6 6 46000606
+1 0 0 0 0 0 7 6 46000706
+1 0 0 0 0 0 8 6 46000806
+1 0 0 0 0 0 9 6 46000906
+1 0 0 0 0 0 10 6 46001006
-"Time = 1.000000
--0.150000 -46000004.0000000000000
-0.150000 46000104.0000000000000
-0.450000 46000204.0000000000000
-0.750000 46000304.0000000000000
-1.050000 46000404.0000000000000
-1.350000 46000504.0000000000000
-1.650000 46000604.0000000000000
-1.950000 46000704.0000000000000
-2.250000 46000804.0000000000000
-2.550000 46000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/fyz.zl b/CarpetAttic/Cart3dTest/test/axial-xy/fyz.zl
index 9bbe5c6ed..3078d746f 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/fyz.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/fyz.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::fyz z (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 46000100
+0 0 0 0 0 0 1 1 46000101
+0 0 0 0 0 0 1 2 46000102
+0 0 0 0 0 0 1 3 46000103
+0 0 0 0 0 0 1 4 46000104
+0 0 0 0 0 0 1 5 46000105
+0 0 0 0 0 0 1 6 46000106
+0 0 0 0 0 0 1 7 46000107
+0 0 0 0 0 0 1 8 46000108
+0 0 0 0 0 0 1 9 46000109
+0 0 0 0 0 0 1 10 46000110
+0 0 0 0 0 0 1 11 46000111
-"Time = 0.000000
--1.350000 46000100.0000000000000
--1.050000 46000101.0000000000000
--0.750000 46000102.0000000000000
--0.450000 46000103.0000000000000
--0.150000 46000104.0000000000000
-0.150000 46000105.0000000000000
-0.450000 46000106.0000000000000
-0.750000 46000107.0000000000000
-1.050000 46000108.0000000000000
-1.350000 46000109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 46000100
+1 0 0 0 0 0 1 1 46000101
+1 0 0 0 0 0 1 2 46000102
+1 0 0 0 0 0 1 3 46000103
+1 0 0 0 0 0 1 4 46000104
+1 0 0 0 0 0 1 5 46000105
+1 0 0 0 0 0 1 6 46000106
+1 0 0 0 0 0 1 7 46000107
+1 0 0 0 0 0 1 8 46000108
+1 0 0 0 0 0 1 9 46000109
+1 0 0 0 0 0 1 10 46000110
+1 0 0 0 0 0 1 11 46000111
-"Time = 1.000000
--1.350000 46000100.0000000000000
--1.050000 46000101.0000000000000
--0.750000 46000102.0000000000000
--0.450000 46000103.0000000000000
--0.150000 46000104.0000000000000
-0.150000 46000105.0000000000000
-0.450000 46000106.0000000000000
-0.750000 46000107.0000000000000
-1.050000 46000108.0000000000000
-1.350000 46000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/fzx.xl b/CarpetAttic/Cart3dTest/test/axial-xy/fzx.xl
index 515ac9516..108e5485c 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/fzx.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/fzx.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::fzx x (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 6 47000106
+0 0 0 0 0 1 1 6 47010106
+0 0 0 0 0 2 1 6 47020106
+0 0 0 0 0 3 1 6 47030106
+0 0 0 0 0 4 1 6 47040106
+0 0 0 0 0 5 1 6 47050106
+0 0 0 0 0 6 1 6 47060106
+0 0 0 0 0 7 1 6 47070106
+0 0 0 0 0 8 1 6 47080106
+0 0 0 0 0 9 1 6 47090106
-"Time = 0.000000
-0.150000 47000104.0000000000000
-0.450000 47010104.0000000000000
-0.750000 47020104.0000000000000
-1.050000 47030104.0000000000000
-1.350000 47040104.0000000000000
-1.650000 47050104.0000000000000
-1.950000 47060104.0000000000000
-2.250000 47070104.0000000000000
-2.550000 47080104.0000000000000
-2.850000 47090104.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 6 47000106
+1 0 0 0 0 1 1 6 47010106
+1 0 0 0 0 2 1 6 47020106
+1 0 0 0 0 3 1 6 47030106
+1 0 0 0 0 4 1 6 47040106
+1 0 0 0 0 5 1 6 47050106
+1 0 0 0 0 6 1 6 47060106
+1 0 0 0 0 7 1 6 47070106
+1 0 0 0 0 8 1 6 47080106
+1 0 0 0 0 9 1 6 47090106
-"Time = 1.000000
-0.150000 47000104.0000000000000
-0.450000 47010104.0000000000000
-0.750000 47020104.0000000000000
-1.050000 47030104.0000000000000
-1.350000 47040104.0000000000000
-1.650000 47050104.0000000000000
-1.950000 47060104.0000000000000
-2.250000 47070104.0000000000000
-2.550000 47080104.0000000000000
-2.850000 47090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/fzx.yl b/CarpetAttic/Cart3dTest/test/axial-xy/fzx.yl
index 1310d1fe6..a20eb6092 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/fzx.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/fzx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx y (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 6 47000006
+0 0 0 0 0 0 1 6 47000106
+0 0 0 0 0 0 2 6 47000206
+0 0 0 0 0 0 3 6 47000306
+0 0 0 0 0 0 4 6 47000406
+0 0 0 0 0 0 5 6 47000506
+0 0 0 0 0 0 6 6 47000606
+0 0 0 0 0 0 7 6 47000706
+0 0 0 0 0 0 8 6 47000806
+0 0 0 0 0 0 9 6 47000906
+0 0 0 0 0 0 10 6 47001006
-"Time = 0.000000
--0.150000 47000004.0000000000000
-0.150000 47000104.0000000000000
-0.450000 47000204.0000000000000
-0.750000 47000304.0000000000000
-1.050000 47000404.0000000000000
-1.350000 47000504.0000000000000
-1.650000 47000604.0000000000000
-1.950000 47000704.0000000000000
-2.250000 47000804.0000000000000
-2.550000 47000904.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 6 48000106
+1 0 0 0 0 0 1 6 47000106
+1 0 0 0 0 0 2 6 47000206
+1 0 0 0 0 0 3 6 47000306
+1 0 0 0 0 0 4 6 47000406
+1 0 0 0 0 0 5 6 47000506
+1 0 0 0 0 0 6 6 47000606
+1 0 0 0 0 0 7 6 47000706
+1 0 0 0 0 0 8 6 47000806
+1 0 0 0 0 0 9 6 47000906
+1 0 0 0 0 0 10 6 47001006
-"Time = 1.000000
--0.150000 48000004.0000000000000
-0.150000 47000104.0000000000000
-0.450000 47000204.0000000000000
-0.750000 47000304.0000000000000
-1.050000 47000404.0000000000000
-1.350000 47000504.0000000000000
-1.650000 47000604.0000000000000
-1.950000 47000704.0000000000000
-2.250000 47000804.0000000000000
-2.550000 47000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/fzx.zl b/CarpetAttic/Cart3dTest/test/axial-xy/fzx.zl
index aaff9cdb1..bb13d4c8f 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/fzx.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/fzx.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::fzx z (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 47000100
+0 0 0 0 0 0 1 1 47000101
+0 0 0 0 0 0 1 2 47000102
+0 0 0 0 0 0 1 3 47000103
+0 0 0 0 0 0 1 4 47000104
+0 0 0 0 0 0 1 5 47000105
+0 0 0 0 0 0 1 6 47000106
+0 0 0 0 0 0 1 7 47000107
+0 0 0 0 0 0 1 8 47000108
+0 0 0 0 0 0 1 9 47000109
+0 0 0 0 0 0 1 10 47000110
+0 0 0 0 0 0 1 11 47000111
-"Time = 0.000000
--1.350000 47000100.0000000000000
--1.050000 47000101.0000000000000
--0.750000 47000102.0000000000000
--0.450000 47000103.0000000000000
--0.150000 47000104.0000000000000
-0.150000 47000105.0000000000000
-0.450000 47000106.0000000000000
-0.750000 47000107.0000000000000
-1.050000 47000108.0000000000000
-1.350000 47000109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 47000100
+1 0 0 0 0 0 1 1 47000101
+1 0 0 0 0 0 1 2 47000102
+1 0 0 0 0 0 1 3 47000103
+1 0 0 0 0 0 1 4 47000104
+1 0 0 0 0 0 1 5 47000105
+1 0 0 0 0 0 1 6 47000106
+1 0 0 0 0 0 1 7 47000107
+1 0 0 0 0 0 1 8 47000108
+1 0 0 0 0 0 1 9 47000109
+1 0 0 0 0 0 1 10 47000110
+1 0 0 0 0 0 1 11 47000111
-"Time = 1.000000
--1.350000 47000100.0000000000000
--1.050000 47000101.0000000000000
--0.750000 47000102.0000000000000
--0.450000 47000103.0000000000000
--0.150000 47000104.0000000000000
-0.150000 47000105.0000000000000
-0.450000 47000106.0000000000000
-0.750000 47000107.0000000000000
-1.050000 47000108.0000000000000
-1.350000 47000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/fzy.xl b/CarpetAttic/Cart3dTest/test/axial-xy/fzy.xl
index ed8352758..ae26122c4 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/fzy.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/fzy.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::fzy x (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 6 48000106
+0 0 0 0 0 1 1 6 48010106
+0 0 0 0 0 2 1 6 48020106
+0 0 0 0 0 3 1 6 48030106
+0 0 0 0 0 4 1 6 48040106
+0 0 0 0 0 5 1 6 48050106
+0 0 0 0 0 6 1 6 48060106
+0 0 0 0 0 7 1 6 48070106
+0 0 0 0 0 8 1 6 48080106
+0 0 0 0 0 9 1 6 48090106
-"Time = 0.000000
-0.150000 48000104.0000000000000
-0.450000 48010104.0000000000000
-0.750000 48020104.0000000000000
-1.050000 48030104.0000000000000
-1.350000 48040104.0000000000000
-1.650000 48050104.0000000000000
-1.950000 48060104.0000000000000
-2.250000 48070104.0000000000000
-2.550000 48080104.0000000000000
-2.850000 48090104.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 6 48000106
+1 0 0 0 0 1 1 6 48010106
+1 0 0 0 0 2 1 6 48020106
+1 0 0 0 0 3 1 6 48030106
+1 0 0 0 0 4 1 6 48040106
+1 0 0 0 0 5 1 6 48050106
+1 0 0 0 0 6 1 6 48060106
+1 0 0 0 0 7 1 6 48070106
+1 0 0 0 0 8 1 6 48080106
+1 0 0 0 0 9 1 6 48090106
-"Time = 1.000000
-0.150000 48000104.0000000000000
-0.450000 48010104.0000000000000
-0.750000 48020104.0000000000000
-1.050000 48030104.0000000000000
-1.350000 48040104.0000000000000
-1.650000 48050104.0000000000000
-1.950000 48060104.0000000000000
-2.250000 48070104.0000000000000
-2.550000 48080104.0000000000000
-2.850000 48090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/fzy.yl b/CarpetAttic/Cart3dTest/test/axial-xy/fzy.yl
index 6919e9e6f..9bba90ecb 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/fzy.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/fzy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy y (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 6 48000006
+0 0 0 0 0 0 1 6 48000106
+0 0 0 0 0 0 2 6 48000206
+0 0 0 0 0 0 3 6 48000306
+0 0 0 0 0 0 4 6 48000406
+0 0 0 0 0 0 5 6 48000506
+0 0 0 0 0 0 6 6 48000606
+0 0 0 0 0 0 7 6 48000706
+0 0 0 0 0 0 8 6 48000806
+0 0 0 0 0 0 9 6 48000906
+0 0 0 0 0 0 10 6 48001006
-"Time = 0.000000
--0.150000 48000004.0000000000000
-0.150000 48000104.0000000000000
-0.450000 48000204.0000000000000
-0.750000 48000304.0000000000000
-1.050000 48000404.0000000000000
-1.350000 48000504.0000000000000
-1.650000 48000604.0000000000000
-1.950000 48000704.0000000000000
-2.250000 48000804.0000000000000
-2.550000 48000904.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 6 -47000106
+1 0 0 0 0 0 1 6 48000106
+1 0 0 0 0 0 2 6 48000206
+1 0 0 0 0 0 3 6 48000306
+1 0 0 0 0 0 4 6 48000406
+1 0 0 0 0 0 5 6 48000506
+1 0 0 0 0 0 6 6 48000606
+1 0 0 0 0 0 7 6 48000706
+1 0 0 0 0 0 8 6 48000806
+1 0 0 0 0 0 9 6 48000906
+1 0 0 0 0 0 10 6 48001006
-"Time = 1.000000
--0.150000 -48000004.0000000000000
-0.150000 48000104.0000000000000
-0.450000 48000204.0000000000000
-0.750000 48000304.0000000000000
-1.050000 48000404.0000000000000
-1.350000 48000504.0000000000000
-1.650000 48000604.0000000000000
-1.950000 48000704.0000000000000
-2.250000 48000804.0000000000000
-2.550000 48000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/fzy.zl b/CarpetAttic/Cart3dTest/test/axial-xy/fzy.zl
index 1878bb067..37d01026c 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/fzy.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/fzy.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::fzy z (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 48000100
+0 0 0 0 0 0 1 1 48000101
+0 0 0 0 0 0 1 2 48000102
+0 0 0 0 0 0 1 3 48000103
+0 0 0 0 0 0 1 4 48000104
+0 0 0 0 0 0 1 5 48000105
+0 0 0 0 0 0 1 6 48000106
+0 0 0 0 0 0 1 7 48000107
+0 0 0 0 0 0 1 8 48000108
+0 0 0 0 0 0 1 9 48000109
+0 0 0 0 0 0 1 10 48000110
+0 0 0 0 0 0 1 11 48000111
-"Time = 0.000000
--1.350000 48000100.0000000000000
--1.050000 48000101.0000000000000
--0.750000 48000102.0000000000000
--0.450000 48000103.0000000000000
--0.150000 48000104.0000000000000
-0.150000 48000105.0000000000000
-0.450000 48000106.0000000000000
-0.750000 48000107.0000000000000
-1.050000 48000108.0000000000000
-1.350000 48000109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 48000100
+1 0 0 0 0 0 1 1 48000101
+1 0 0 0 0 0 1 2 48000102
+1 0 0 0 0 0 1 3 48000103
+1 0 0 0 0 0 1 4 48000104
+1 0 0 0 0 0 1 5 48000105
+1 0 0 0 0 0 1 6 48000106
+1 0 0 0 0 0 1 7 48000107
+1 0 0 0 0 0 1 8 48000108
+1 0 0 0 0 0 1 9 48000109
+1 0 0 0 0 0 1 10 48000110
+1 0 0 0 0 0 1 11 48000111
-"Time = 1.000000
--1.350000 48000100.0000000000000
--1.050000 48000101.0000000000000
--0.750000 48000102.0000000000000
--0.450000 48000103.0000000000000
--0.150000 48000104.0000000000000
-0.150000 48000105.0000000000000
-0.450000 48000106.0000000000000
-0.750000 48000107.0000000000000
-1.050000 48000108.0000000000000
-1.350000 48000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/fzz.xl b/CarpetAttic/Cart3dTest/test/axial-xy/fzz.xl
index 74515c029..73deb4328 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/fzz.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/fzz.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::fzz x (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 6 49000106
+0 0 0 0 0 1 1 6 49010106
+0 0 0 0 0 2 1 6 49020106
+0 0 0 0 0 3 1 6 49030106
+0 0 0 0 0 4 1 6 49040106
+0 0 0 0 0 5 1 6 49050106
+0 0 0 0 0 6 1 6 49060106
+0 0 0 0 0 7 1 6 49070106
+0 0 0 0 0 8 1 6 49080106
+0 0 0 0 0 9 1 6 49090106
-"Time = 0.000000
-0.150000 49000104.0000000000000
-0.450000 49010104.0000000000000
-0.750000 49020104.0000000000000
-1.050000 49030104.0000000000000
-1.350000 49040104.0000000000000
-1.650000 49050104.0000000000000
-1.950000 49060104.0000000000000
-2.250000 49070104.0000000000000
-2.550000 49080104.0000000000000
-2.850000 49090104.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 6 49000106
+1 0 0 0 0 1 1 6 49010106
+1 0 0 0 0 2 1 6 49020106
+1 0 0 0 0 3 1 6 49030106
+1 0 0 0 0 4 1 6 49040106
+1 0 0 0 0 5 1 6 49050106
+1 0 0 0 0 6 1 6 49060106
+1 0 0 0 0 7 1 6 49070106
+1 0 0 0 0 8 1 6 49080106
+1 0 0 0 0 9 1 6 49090106
-"Time = 1.000000
-0.150000 49000104.0000000000000
-0.450000 49010104.0000000000000
-0.750000 49020104.0000000000000
-1.050000 49030104.0000000000000
-1.350000 49040104.0000000000000
-1.650000 49050104.0000000000000
-1.950000 49060104.0000000000000
-2.250000 49070104.0000000000000
-2.550000 49080104.0000000000000
-2.850000 49090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/fzz.yl b/CarpetAttic/Cart3dTest/test/axial-xy/fzz.yl
index ffeca8273..951b3c33d 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/fzz.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/fzz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz y (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 6 49000006
+0 0 0 0 0 0 1 6 49000106
+0 0 0 0 0 0 2 6 49000206
+0 0 0 0 0 0 3 6 49000306
+0 0 0 0 0 0 4 6 49000406
+0 0 0 0 0 0 5 6 49000506
+0 0 0 0 0 0 6 6 49000606
+0 0 0 0 0 0 7 6 49000706
+0 0 0 0 0 0 8 6 49000806
+0 0 0 0 0 0 9 6 49000906
+0 0 0 0 0 0 10 6 49001006
-"Time = 0.000000
--0.150000 49000004.0000000000000
-0.150000 49000104.0000000000000
-0.450000 49000204.0000000000000
-0.750000 49000304.0000000000000
-1.050000 49000404.0000000000000
-1.350000 49000504.0000000000000
-1.650000 49000604.0000000000000
-1.950000 49000704.0000000000000
-2.250000 49000804.0000000000000
-2.550000 49000904.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 6 49000106
+1 0 0 0 0 0 1 6 49000106
+1 0 0 0 0 0 2 6 49000206
+1 0 0 0 0 0 3 6 49000306
+1 0 0 0 0 0 4 6 49000406
+1 0 0 0 0 0 5 6 49000506
+1 0 0 0 0 0 6 6 49000606
+1 0 0 0 0 0 7 6 49000706
+1 0 0 0 0 0 8 6 49000806
+1 0 0 0 0 0 9 6 49000906
+1 0 0 0 0 0 10 6 49001006
-"Time = 1.000000
--0.150000 49000004.0000000000000
-0.150000 49000104.0000000000000
-0.450000 49000204.0000000000000
-0.750000 49000304.0000000000000
-1.050000 49000404.0000000000000
-1.350000 49000504.0000000000000
-1.650000 49000604.0000000000000
-1.950000 49000704.0000000000000
-2.250000 49000804.0000000000000
-2.550000 49000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/fzz.zl b/CarpetAttic/Cart3dTest/test/axial-xy/fzz.zl
index 324aa786d..fec4209f1 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/fzz.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/fzz.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::fzz z (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 49000100
+0 0 0 0 0 0 1 1 49000101
+0 0 0 0 0 0 1 2 49000102
+0 0 0 0 0 0 1 3 49000103
+0 0 0 0 0 0 1 4 49000104
+0 0 0 0 0 0 1 5 49000105
+0 0 0 0 0 0 1 6 49000106
+0 0 0 0 0 0 1 7 49000107
+0 0 0 0 0 0 1 8 49000108
+0 0 0 0 0 0 1 9 49000109
+0 0 0 0 0 0 1 10 49000110
+0 0 0 0 0 0 1 11 49000111
-"Time = 0.000000
--1.350000 49000100.0000000000000
--1.050000 49000101.0000000000000
--0.750000 49000102.0000000000000
--0.450000 49000103.0000000000000
--0.150000 49000104.0000000000000
-0.150000 49000105.0000000000000
-0.450000 49000106.0000000000000
-0.750000 49000107.0000000000000
-1.050000 49000108.0000000000000
-1.350000 49000109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 49000100
+1 0 0 0 0 0 1 1 49000101
+1 0 0 0 0 0 1 2 49000102
+1 0 0 0 0 0 1 3 49000103
+1 0 0 0 0 0 1 4 49000104
+1 0 0 0 0 0 1 5 49000105
+1 0 0 0 0 0 1 6 49000106
+1 0 0 0 0 0 1 7 49000107
+1 0 0 0 0 0 1 8 49000108
+1 0 0 0 0 0 1 9 49000109
+1 0 0 0 0 0 1 10 49000110
+1 0 0 0 0 0 1 11 49000111
-"Time = 1.000000
--1.350000 49000100.0000000000000
--1.050000 49000101.0000000000000
--0.750000 49000102.0000000000000
--0.450000 49000103.0000000000000
--0.150000 49000104.0000000000000
-0.150000 49000105.0000000000000
-0.450000 49000106.0000000000000
-0.750000 49000107.0000000000000
-1.050000 49000108.0000000000000
-1.350000 49000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/s.xl b/CarpetAttic/Cart3dTest/test/axial-xy/s.xl
index e4c0e7084..c03c8fc65 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/s.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/s.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::s x (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 6 1000106
+0 0 0 0 0 1 1 6 1010106
+0 0 0 0 0 2 1 6 1020106
+0 0 0 0 0 3 1 6 1030106
+0 0 0 0 0 4 1 6 1040106
+0 0 0 0 0 5 1 6 1050106
+0 0 0 0 0 6 1 6 1060106
+0 0 0 0 0 7 1 6 1070106
+0 0 0 0 0 8 1 6 1080106
+0 0 0 0 0 9 1 6 1090106
-"Time = 0.000000
-0.150000 1000104.0000000000000
-0.450000 1010104.0000000000000
-0.750000 1020104.0000000000000
-1.050000 1030104.0000000000000
-1.350000 1040104.0000000000000
-1.650000 1050104.0000000000000
-1.950000 1060104.0000000000000
-2.250000 1070104.0000000000000
-2.550000 1080104.0000000000000
-2.850000 1090104.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 6 1000106
+1 0 0 0 0 1 1 6 1010106
+1 0 0 0 0 2 1 6 1020106
+1 0 0 0 0 3 1 6 1030106
+1 0 0 0 0 4 1 6 1040106
+1 0 0 0 0 5 1 6 1050106
+1 0 0 0 0 6 1 6 1060106
+1 0 0 0 0 7 1 6 1070106
+1 0 0 0 0 8 1 6 1080106
+1 0 0 0 0 9 1 6 1090106
-"Time = 1.000000
-0.150000 1000104.0000000000000
-0.450000 1010104.0000000000000
-0.750000 1020104.0000000000000
-1.050000 1030104.0000000000000
-1.350000 1040104.0000000000000
-1.650000 1050104.0000000000000
-1.950000 1060104.0000000000000
-2.250000 1070104.0000000000000
-2.550000 1080104.0000000000000
-2.850000 1090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/s.yl b/CarpetAttic/Cart3dTest/test/axial-xy/s.yl
index 872ef2cce..938984f81 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/s.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/s.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::s y (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 6 1000006
+0 0 0 0 0 0 1 6 1000106
+0 0 0 0 0 0 2 6 1000206
+0 0 0 0 0 0 3 6 1000306
+0 0 0 0 0 0 4 6 1000406
+0 0 0 0 0 0 5 6 1000506
+0 0 0 0 0 0 6 6 1000606
+0 0 0 0 0 0 7 6 1000706
+0 0 0 0 0 0 8 6 1000806
+0 0 0 0 0 0 9 6 1000906
+0 0 0 0 0 0 10 6 1001006
-"Time = 0.000000
--0.150000 1000004.0000000000000
-0.150000 1000104.0000000000000
-0.450000 1000204.0000000000000
-0.750000 1000304.0000000000000
-1.050000 1000404.0000000000000
-1.350000 1000504.0000000000000
-1.650000 1000604.0000000000000
-1.950000 1000704.0000000000000
-2.250000 1000804.0000000000000
-2.550000 1000904.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 6 1000106
+1 0 0 0 0 0 1 6 1000106
+1 0 0 0 0 0 2 6 1000206
+1 0 0 0 0 0 3 6 1000306
+1 0 0 0 0 0 4 6 1000406
+1 0 0 0 0 0 5 6 1000506
+1 0 0 0 0 0 6 6 1000606
+1 0 0 0 0 0 7 6 1000706
+1 0 0 0 0 0 8 6 1000806
+1 0 0 0 0 0 9 6 1000906
+1 0 0 0 0 0 10 6 1001006
-"Time = 1.000000
--0.150000 1000004.0000000000000
-0.150000 1000104.0000000000000
-0.450000 1000204.0000000000000
-0.750000 1000304.0000000000000
-1.050000 1000404.0000000000000
-1.350000 1000504.0000000000000
-1.650000 1000604.0000000000000
-1.950000 1000704.0000000000000
-2.250000 1000804.0000000000000
-2.550000 1000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/s.zl b/CarpetAttic/Cart3dTest/test/axial-xy/s.zl
index e08e59443..17eee5984 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/s.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/s.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::s z (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 1000100
+0 0 0 0 0 0 1 1 1000101
+0 0 0 0 0 0 1 2 1000102
+0 0 0 0 0 0 1 3 1000103
+0 0 0 0 0 0 1 4 1000104
+0 0 0 0 0 0 1 5 1000105
+0 0 0 0 0 0 1 6 1000106
+0 0 0 0 0 0 1 7 1000107
+0 0 0 0 0 0 1 8 1000108
+0 0 0 0 0 0 1 9 1000109
+0 0 0 0 0 0 1 10 1000110
+0 0 0 0 0 0 1 11 1000111
-"Time = 0.000000
--1.350000 1000100.0000000000000
--1.050000 1000101.0000000000000
--0.750000 1000102.0000000000000
--0.450000 1000103.0000000000000
--0.150000 1000104.0000000000000
-0.150000 1000105.0000000000000
-0.450000 1000106.0000000000000
-0.750000 1000107.0000000000000
-1.050000 1000108.0000000000000
-1.350000 1000109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 1000100
+1 0 0 0 0 0 1 1 1000101
+1 0 0 0 0 0 1 2 1000102
+1 0 0 0 0 0 1 3 1000103
+1 0 0 0 0 0 1 4 1000104
+1 0 0 0 0 0 1 5 1000105
+1 0 0 0 0 0 1 6 1000106
+1 0 0 0 0 0 1 7 1000107
+1 0 0 0 0 0 1 8 1000108
+1 0 0 0 0 0 1 9 1000109
+1 0 0 0 0 0 1 10 1000110
+1 0 0 0 0 0 1 11 1000111
-"Time = 1.000000
--1.350000 1000100.0000000000000
--1.050000 1000101.0000000000000
--0.750000 1000102.0000000000000
--0.450000 1000103.0000000000000
--0.150000 1000104.0000000000000
-0.150000 1000105.0000000000000
-0.450000 1000106.0000000000000
-0.750000 1000107.0000000000000
-1.050000 1000108.0000000000000
-1.350000 1000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/spher3d_r.xl b/CarpetAttic/Cart3dTest/test/axial-xy/spher3d_r.xl
index a7e55a2d4..67bc6713f 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/spher3d_r.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/spher3d_r.xl
@@ -1,26 +1,32 @@
+# GRID::spher3d_r x (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 6 0.259807621135332
+0 0 0 0 0 1 1 6 0.49749371855331
+0 0 0 0 0 2 1 6 0.779422863405995
+0 0 0 0 0 3 1 6 1.07121426428143
+0 0 0 0 0 4 1 6 1.36656503687164
+0 0 0 0 0 5 1 6 1.66358047596141
+0 0 0 0 0 6 1 6 1.9615045245933
+0 0 0 0 0 7 1 6 2.2599778759979
+0 0 0 0 0 8 1 6 2.5588083163848
+0 0 0 0 0 9 1 6 2.85788383248865
-"Time = 0.000000
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
-2.550000 2.5588083163848
-2.850000 2.8578838324886
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 6 0.259807621135332
+1 0 0 0 0 1 1 6 0.49749371855331
+1 0 0 0 0 2 1 6 0.779422863405995
+1 0 0 0 0 3 1 6 1.07121426428143
+1 0 0 0 0 4 1 6 1.36656503687164
+1 0 0 0 0 5 1 6 1.66358047596141
+1 0 0 0 0 6 1 6 1.9615045245933
+1 0 0 0 0 7 1 6 2.2599778759979
+1 0 0 0 0 8 1 6 2.5588083163848
+1 0 0 0 0 9 1 6 2.85788383248865
-"Time = 1.000000
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
-2.550000 2.5588083163848
-2.850000 2.8578838324886
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/spher3d_r.yl b/CarpetAttic/Cart3dTest/test/axial-xy/spher3d_r.yl
index aab231952..ab707f2aa 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/spher3d_r.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/spher3d_r.yl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r y (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 6 0.259807621135332
+0 0 0 0 0 0 1 6 0.259807621135332
+0 0 0 0 0 0 2 6 0.49749371855331
+0 0 0 0 0 0 3 6 0.779422863405995
+0 0 0 0 0 0 4 6 1.07121426428143
+0 0 0 0 0 0 5 6 1.36656503687164
+0 0 0 0 0 0 6 6 1.66358047596141
+0 0 0 0 0 0 7 6 1.9615045245933
+0 0 0 0 0 0 8 6 2.2599778759979
+0 0 0 0 0 0 9 6 2.5588083163848
+0 0 0 0 0 0 10 6 2.85788383248865
-"Time = 0.000000
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
-2.550000 2.5588083163848
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 6 0.259807621135332
+1 0 0 0 0 0 1 6 0.259807621135332
+1 0 0 0 0 0 2 6 0.49749371855331
+1 0 0 0 0 0 3 6 0.779422863405995
+1 0 0 0 0 0 4 6 1.07121426428143
+1 0 0 0 0 0 5 6 1.36656503687164
+1 0 0 0 0 0 6 6 1.66358047596141
+1 0 0 0 0 0 7 6 1.9615045245933
+1 0 0 0 0 0 8 6 2.2599778759979
+1 0 0 0 0 0 9 6 2.5588083163848
+1 0 0 0 0 0 10 6 2.85788383248865
-"Time = 1.000000
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
-2.550000 2.5588083163848
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/spher3d_r.zl b/CarpetAttic/Cart3dTest/test/axial-xy/spher3d_r.zl
index 2865c92e4..a714f5e19 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/spher3d_r.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/spher3d_r.zl
@@ -1,26 +1,36 @@
+# GRID::spher3d_r z (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 1.66358047596141
+0 0 0 0 0 0 1 1 1.36656503687164
+0 0 0 0 0 0 1 2 1.07121426428143
+0 0 0 0 0 0 1 3 0.779422863405995
+0 0 0 0 0 0 1 4 0.49749371855331
+0 0 0 0 0 0 1 5 0.259807621135332
+0 0 0 0 0 0 1 6 0.259807621135332
+0 0 0 0 0 0 1 7 0.49749371855331
+0 0 0 0 0 0 1 8 0.779422863405995
+0 0 0 0 0 0 1 9 1.07121426428143
+0 0 0 0 0 0 1 10 1.36656503687164
+0 0 0 0 0 0 1 11 1.66358047596141
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 1.66358047596141
+1 0 0 0 0 0 1 1 1.36656503687164
+1 0 0 0 0 0 1 2 1.07121426428143
+1 0 0 0 0 0 1 3 0.779422863405995
+1 0 0 0 0 0 1 4 0.49749371855331
+1 0 0 0 0 0 1 5 0.259807621135332
+1 0 0 0 0 0 1 6 0.259807621135332
+1 0 0 0 0 0 1 7 0.49749371855331
+1 0 0 0 0 0 1 8 0.779422863405995
+1 0 0 0 0 0 1 9 1.07121426428143
+1 0 0 0 0 0 1 10 1.36656503687164
+1 0 0 0 0 0 1 11 1.66358047596141
-"Time = 1.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/txx.xl b/CarpetAttic/Cart3dTest/test/axial-xy/txx.xl
index 8db5cf7c4..d1ae8388e 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/txx.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/txx.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::txx x (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 6 21000106
+0 0 0 0 0 1 1 6 21010106
+0 0 0 0 0 2 1 6 21020106
+0 0 0 0 0 3 1 6 21030106
+0 0 0 0 0 4 1 6 21040106
+0 0 0 0 0 5 1 6 21050106
+0 0 0 0 0 6 1 6 21060106
+0 0 0 0 0 7 1 6 21070106
+0 0 0 0 0 8 1 6 21080106
+0 0 0 0 0 9 1 6 21090106
-"Time = 0.000000
-0.150000 21000104.0000000000000
-0.450000 21010104.0000000000000
-0.750000 21020104.0000000000000
-1.050000 21030104.0000000000000
-1.350000 21040104.0000000000000
-1.650000 21050104.0000000000000
-1.950000 21060104.0000000000000
-2.250000 21070104.0000000000000
-2.550000 21080104.0000000000000
-2.850000 21090104.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 6 21000106
+1 0 0 0 0 1 1 6 21010106
+1 0 0 0 0 2 1 6 21020106
+1 0 0 0 0 3 1 6 21030106
+1 0 0 0 0 4 1 6 21040106
+1 0 0 0 0 5 1 6 21050106
+1 0 0 0 0 6 1 6 21060106
+1 0 0 0 0 7 1 6 21070106
+1 0 0 0 0 8 1 6 21080106
+1 0 0 0 0 9 1 6 21090106
-"Time = 1.000000
-0.150000 21000104.0000000000000
-0.450000 21010104.0000000000000
-0.750000 21020104.0000000000000
-1.050000 21030104.0000000000000
-1.350000 21040104.0000000000000
-1.650000 21050104.0000000000000
-1.950000 21060104.0000000000000
-2.250000 21070104.0000000000000
-2.550000 21080104.0000000000000
-2.850000 21090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/txx.yl b/CarpetAttic/Cart3dTest/test/axial-xy/txx.yl
index f56bf3035..58907522d 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/txx.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/txx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx y (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 6 21000006
+0 0 0 0 0 0 1 6 21000106
+0 0 0 0 0 0 2 6 21000206
+0 0 0 0 0 0 3 6 21000306
+0 0 0 0 0 0 4 6 21000406
+0 0 0 0 0 0 5 6 21000506
+0 0 0 0 0 0 6 6 21000606
+0 0 0 0 0 0 7 6 21000706
+0 0 0 0 0 0 8 6 21000806
+0 0 0 0 0 0 9 6 21000906
+0 0 0 0 0 0 10 6 21001006
-"Time = 0.000000
--0.150000 21000004.0000000000000
-0.150000 21000104.0000000000000
-0.450000 21000204.0000000000000
-0.750000 21000304.0000000000000
-1.050000 21000404.0000000000000
-1.350000 21000504.0000000000000
-1.650000 21000604.0000000000000
-1.950000 21000704.0000000000000
-2.250000 21000804.0000000000000
-2.550000 21000904.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 6 24000106
+1 0 0 0 0 0 1 6 21000106
+1 0 0 0 0 0 2 6 21000206
+1 0 0 0 0 0 3 6 21000306
+1 0 0 0 0 0 4 6 21000406
+1 0 0 0 0 0 5 6 21000506
+1 0 0 0 0 0 6 6 21000606
+1 0 0 0 0 0 7 6 21000706
+1 0 0 0 0 0 8 6 21000806
+1 0 0 0 0 0 9 6 21000906
+1 0 0 0 0 0 10 6 21001006
-"Time = 1.000000
--0.150000 24000004.0000000000000
-0.150000 21000104.0000000000000
-0.450000 21000204.0000000000000
-0.750000 21000304.0000000000000
-1.050000 21000404.0000000000000
-1.350000 21000504.0000000000000
-1.650000 21000604.0000000000000
-1.950000 21000704.0000000000000
-2.250000 21000804.0000000000000
-2.550000 21000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/txx.zl b/CarpetAttic/Cart3dTest/test/axial-xy/txx.zl
index 4a6824f14..0eda09585 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/txx.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/txx.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::txx z (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 21000100
+0 0 0 0 0 0 1 1 21000101
+0 0 0 0 0 0 1 2 21000102
+0 0 0 0 0 0 1 3 21000103
+0 0 0 0 0 0 1 4 21000104
+0 0 0 0 0 0 1 5 21000105
+0 0 0 0 0 0 1 6 21000106
+0 0 0 0 0 0 1 7 21000107
+0 0 0 0 0 0 1 8 21000108
+0 0 0 0 0 0 1 9 21000109
+0 0 0 0 0 0 1 10 21000110
+0 0 0 0 0 0 1 11 21000111
-"Time = 0.000000
--1.350000 21000100.0000000000000
--1.050000 21000101.0000000000000
--0.750000 21000102.0000000000000
--0.450000 21000103.0000000000000
--0.150000 21000104.0000000000000
-0.150000 21000105.0000000000000
-0.450000 21000106.0000000000000
-0.750000 21000107.0000000000000
-1.050000 21000108.0000000000000
-1.350000 21000109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 21000100
+1 0 0 0 0 0 1 1 21000101
+1 0 0 0 0 0 1 2 21000102
+1 0 0 0 0 0 1 3 21000103
+1 0 0 0 0 0 1 4 21000104
+1 0 0 0 0 0 1 5 21000105
+1 0 0 0 0 0 1 6 21000106
+1 0 0 0 0 0 1 7 21000107
+1 0 0 0 0 0 1 8 21000108
+1 0 0 0 0 0 1 9 21000109
+1 0 0 0 0 0 1 10 21000110
+1 0 0 0 0 0 1 11 21000111
-"Time = 1.000000
--1.350000 21000100.0000000000000
--1.050000 21000101.0000000000000
--0.750000 21000102.0000000000000
--0.450000 21000103.0000000000000
--0.150000 21000104.0000000000000
-0.150000 21000105.0000000000000
-0.450000 21000106.0000000000000
-0.750000 21000107.0000000000000
-1.050000 21000108.0000000000000
-1.350000 21000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/txy.xl b/CarpetAttic/Cart3dTest/test/axial-xy/txy.xl
index db59221ec..db85f4483 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/txy.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/txy.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::txy x (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 6 22000106
+0 0 0 0 0 1 1 6 22010106
+0 0 0 0 0 2 1 6 22020106
+0 0 0 0 0 3 1 6 22030106
+0 0 0 0 0 4 1 6 22040106
+0 0 0 0 0 5 1 6 22050106
+0 0 0 0 0 6 1 6 22060106
+0 0 0 0 0 7 1 6 22070106
+0 0 0 0 0 8 1 6 22080106
+0 0 0 0 0 9 1 6 22090106
-"Time = 0.000000
-0.150000 22000104.0000000000000
-0.450000 22010104.0000000000000
-0.750000 22020104.0000000000000
-1.050000 22030104.0000000000000
-1.350000 22040104.0000000000000
-1.650000 22050104.0000000000000
-1.950000 22060104.0000000000000
-2.250000 22070104.0000000000000
-2.550000 22080104.0000000000000
-2.850000 22090104.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 6 22000106
+1 0 0 0 0 1 1 6 22010106
+1 0 0 0 0 2 1 6 22020106
+1 0 0 0 0 3 1 6 22030106
+1 0 0 0 0 4 1 6 22040106
+1 0 0 0 0 5 1 6 22050106
+1 0 0 0 0 6 1 6 22060106
+1 0 0 0 0 7 1 6 22070106
+1 0 0 0 0 8 1 6 22080106
+1 0 0 0 0 9 1 6 22090106
-"Time = 1.000000
-0.150000 22000104.0000000000000
-0.450000 22010104.0000000000000
-0.750000 22020104.0000000000000
-1.050000 22030104.0000000000000
-1.350000 22040104.0000000000000
-1.650000 22050104.0000000000000
-1.950000 22060104.0000000000000
-2.250000 22070104.0000000000000
-2.550000 22080104.0000000000000
-2.850000 22090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/txy.yl b/CarpetAttic/Cart3dTest/test/axial-xy/txy.yl
index e623ae58f..417aa39fe 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/txy.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/txy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy y (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 6 22000006
+0 0 0 0 0 0 1 6 22000106
+0 0 0 0 0 0 2 6 22000206
+0 0 0 0 0 0 3 6 22000306
+0 0 0 0 0 0 4 6 22000406
+0 0 0 0 0 0 5 6 22000506
+0 0 0 0 0 0 6 6 22000606
+0 0 0 0 0 0 7 6 22000706
+0 0 0 0 0 0 8 6 22000806
+0 0 0 0 0 0 9 6 22000906
+0 0 0 0 0 0 10 6 22001006
-"Time = 0.000000
--0.150000 22000004.0000000000000
-0.150000 22000104.0000000000000
-0.450000 22000204.0000000000000
-0.750000 22000304.0000000000000
-1.050000 22000404.0000000000000
-1.350000 22000504.0000000000000
-1.650000 22000604.0000000000000
-1.950000 22000704.0000000000000
-2.250000 22000804.0000000000000
-2.550000 22000904.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 6 -22000106
+1 0 0 0 0 0 1 6 22000106
+1 0 0 0 0 0 2 6 22000206
+1 0 0 0 0 0 3 6 22000306
+1 0 0 0 0 0 4 6 22000406
+1 0 0 0 0 0 5 6 22000506
+1 0 0 0 0 0 6 6 22000606
+1 0 0 0 0 0 7 6 22000706
+1 0 0 0 0 0 8 6 22000806
+1 0 0 0 0 0 9 6 22000906
+1 0 0 0 0 0 10 6 22001006
-"Time = 1.000000
--0.150000 -22000004.0000000000000
-0.150000 22000104.0000000000000
-0.450000 22000204.0000000000000
-0.750000 22000304.0000000000000
-1.050000 22000404.0000000000000
-1.350000 22000504.0000000000000
-1.650000 22000604.0000000000000
-1.950000 22000704.0000000000000
-2.250000 22000804.0000000000000
-2.550000 22000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/txy.zl b/CarpetAttic/Cart3dTest/test/axial-xy/txy.zl
index 1ca3bc3ae..714ee628b 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/txy.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/txy.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::txy z (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 22000100
+0 0 0 0 0 0 1 1 22000101
+0 0 0 0 0 0 1 2 22000102
+0 0 0 0 0 0 1 3 22000103
+0 0 0 0 0 0 1 4 22000104
+0 0 0 0 0 0 1 5 22000105
+0 0 0 0 0 0 1 6 22000106
+0 0 0 0 0 0 1 7 22000107
+0 0 0 0 0 0 1 8 22000108
+0 0 0 0 0 0 1 9 22000109
+0 0 0 0 0 0 1 10 22000110
+0 0 0 0 0 0 1 11 22000111
-"Time = 0.000000
--1.350000 22000100.0000000000000
--1.050000 22000101.0000000000000
--0.750000 22000102.0000000000000
--0.450000 22000103.0000000000000
--0.150000 22000104.0000000000000
-0.150000 22000105.0000000000000
-0.450000 22000106.0000000000000
-0.750000 22000107.0000000000000
-1.050000 22000108.0000000000000
-1.350000 22000109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 22000100
+1 0 0 0 0 0 1 1 22000101
+1 0 0 0 0 0 1 2 22000102
+1 0 0 0 0 0 1 3 22000103
+1 0 0 0 0 0 1 4 22000104
+1 0 0 0 0 0 1 5 22000105
+1 0 0 0 0 0 1 6 22000106
+1 0 0 0 0 0 1 7 22000107
+1 0 0 0 0 0 1 8 22000108
+1 0 0 0 0 0 1 9 22000109
+1 0 0 0 0 0 1 10 22000110
+1 0 0 0 0 0 1 11 22000111
-"Time = 1.000000
--1.350000 22000100.0000000000000
--1.050000 22000101.0000000000000
--0.750000 22000102.0000000000000
--0.450000 22000103.0000000000000
--0.150000 22000104.0000000000000
-0.150000 22000105.0000000000000
-0.450000 22000106.0000000000000
-0.750000 22000107.0000000000000
-1.050000 22000108.0000000000000
-1.350000 22000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/txz.xl b/CarpetAttic/Cart3dTest/test/axial-xy/txz.xl
index acc8422b4..4960e5e81 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/txz.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/txz.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::txz x (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 6 23000106
+0 0 0 0 0 1 1 6 23010106
+0 0 0 0 0 2 1 6 23020106
+0 0 0 0 0 3 1 6 23030106
+0 0 0 0 0 4 1 6 23040106
+0 0 0 0 0 5 1 6 23050106
+0 0 0 0 0 6 1 6 23060106
+0 0 0 0 0 7 1 6 23070106
+0 0 0 0 0 8 1 6 23080106
+0 0 0 0 0 9 1 6 23090106
-"Time = 0.000000
-0.150000 23000104.0000000000000
-0.450000 23010104.0000000000000
-0.750000 23020104.0000000000000
-1.050000 23030104.0000000000000
-1.350000 23040104.0000000000000
-1.650000 23050104.0000000000000
-1.950000 23060104.0000000000000
-2.250000 23070104.0000000000000
-2.550000 23080104.0000000000000
-2.850000 23090104.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 6 23000106
+1 0 0 0 0 1 1 6 23010106
+1 0 0 0 0 2 1 6 23020106
+1 0 0 0 0 3 1 6 23030106
+1 0 0 0 0 4 1 6 23040106
+1 0 0 0 0 5 1 6 23050106
+1 0 0 0 0 6 1 6 23060106
+1 0 0 0 0 7 1 6 23070106
+1 0 0 0 0 8 1 6 23080106
+1 0 0 0 0 9 1 6 23090106
-"Time = 1.000000
-0.150000 23000104.0000000000000
-0.450000 23010104.0000000000000
-0.750000 23020104.0000000000000
-1.050000 23030104.0000000000000
-1.350000 23040104.0000000000000
-1.650000 23050104.0000000000000
-1.950000 23060104.0000000000000
-2.250000 23070104.0000000000000
-2.550000 23080104.0000000000000
-2.850000 23090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/txz.yl b/CarpetAttic/Cart3dTest/test/axial-xy/txz.yl
index 7033e3ce8..7e347543a 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/txz.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/txz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz y (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 6 23000006
+0 0 0 0 0 0 1 6 23000106
+0 0 0 0 0 0 2 6 23000206
+0 0 0 0 0 0 3 6 23000306
+0 0 0 0 0 0 4 6 23000406
+0 0 0 0 0 0 5 6 23000506
+0 0 0 0 0 0 6 6 23000606
+0 0 0 0 0 0 7 6 23000706
+0 0 0 0 0 0 8 6 23000806
+0 0 0 0 0 0 9 6 23000906
+0 0 0 0 0 0 10 6 23001006
-"Time = 0.000000
--0.150000 23000004.0000000000000
-0.150000 23000104.0000000000000
-0.450000 23000204.0000000000000
-0.750000 23000304.0000000000000
-1.050000 23000404.0000000000000
-1.350000 23000504.0000000000000
-1.650000 23000604.0000000000000
-1.950000 23000704.0000000000000
-2.250000 23000804.0000000000000
-2.550000 23000904.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 6 25000106
+1 0 0 0 0 0 1 6 23000106
+1 0 0 0 0 0 2 6 23000206
+1 0 0 0 0 0 3 6 23000306
+1 0 0 0 0 0 4 6 23000406
+1 0 0 0 0 0 5 6 23000506
+1 0 0 0 0 0 6 6 23000606
+1 0 0 0 0 0 7 6 23000706
+1 0 0 0 0 0 8 6 23000806
+1 0 0 0 0 0 9 6 23000906
+1 0 0 0 0 0 10 6 23001006
-"Time = 1.000000
--0.150000 25000004.0000000000000
-0.150000 23000104.0000000000000
-0.450000 23000204.0000000000000
-0.750000 23000304.0000000000000
-1.050000 23000404.0000000000000
-1.350000 23000504.0000000000000
-1.650000 23000604.0000000000000
-1.950000 23000704.0000000000000
-2.250000 23000804.0000000000000
-2.550000 23000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/txz.zl b/CarpetAttic/Cart3dTest/test/axial-xy/txz.zl
index 524d01306..932c2df46 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/txz.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/txz.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::txz z (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 23000100
+0 0 0 0 0 0 1 1 23000101
+0 0 0 0 0 0 1 2 23000102
+0 0 0 0 0 0 1 3 23000103
+0 0 0 0 0 0 1 4 23000104
+0 0 0 0 0 0 1 5 23000105
+0 0 0 0 0 0 1 6 23000106
+0 0 0 0 0 0 1 7 23000107
+0 0 0 0 0 0 1 8 23000108
+0 0 0 0 0 0 1 9 23000109
+0 0 0 0 0 0 1 10 23000110
+0 0 0 0 0 0 1 11 23000111
-"Time = 0.000000
--1.350000 23000100.0000000000000
--1.050000 23000101.0000000000000
--0.750000 23000102.0000000000000
--0.450000 23000103.0000000000000
--0.150000 23000104.0000000000000
-0.150000 23000105.0000000000000
-0.450000 23000106.0000000000000
-0.750000 23000107.0000000000000
-1.050000 23000108.0000000000000
-1.350000 23000109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 23000100
+1 0 0 0 0 0 1 1 23000101
+1 0 0 0 0 0 1 2 23000102
+1 0 0 0 0 0 1 3 23000103
+1 0 0 0 0 0 1 4 23000104
+1 0 0 0 0 0 1 5 23000105
+1 0 0 0 0 0 1 6 23000106
+1 0 0 0 0 0 1 7 23000107
+1 0 0 0 0 0 1 8 23000108
+1 0 0 0 0 0 1 9 23000109
+1 0 0 0 0 0 1 10 23000110
+1 0 0 0 0 0 1 11 23000111
-"Time = 1.000000
--1.350000 23000100.0000000000000
--1.050000 23000101.0000000000000
--0.750000 23000102.0000000000000
--0.450000 23000103.0000000000000
--0.150000 23000104.0000000000000
-0.150000 23000105.0000000000000
-0.450000 23000106.0000000000000
-0.750000 23000107.0000000000000
-1.050000 23000108.0000000000000
-1.350000 23000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/tyy.xl b/CarpetAttic/Cart3dTest/test/axial-xy/tyy.xl
index 6cc63ea47..449cfb09b 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/tyy.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/tyy.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::tyy x (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 6 24000106
+0 0 0 0 0 1 1 6 24010106
+0 0 0 0 0 2 1 6 24020106
+0 0 0 0 0 3 1 6 24030106
+0 0 0 0 0 4 1 6 24040106
+0 0 0 0 0 5 1 6 24050106
+0 0 0 0 0 6 1 6 24060106
+0 0 0 0 0 7 1 6 24070106
+0 0 0 0 0 8 1 6 24080106
+0 0 0 0 0 9 1 6 24090106
-"Time = 0.000000
-0.150000 24000104.0000000000000
-0.450000 24010104.0000000000000
-0.750000 24020104.0000000000000
-1.050000 24030104.0000000000000
-1.350000 24040104.0000000000000
-1.650000 24050104.0000000000000
-1.950000 24060104.0000000000000
-2.250000 24070104.0000000000000
-2.550000 24080104.0000000000000
-2.850000 24090104.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 6 24000106
+1 0 0 0 0 1 1 6 24010106
+1 0 0 0 0 2 1 6 24020106
+1 0 0 0 0 3 1 6 24030106
+1 0 0 0 0 4 1 6 24040106
+1 0 0 0 0 5 1 6 24050106
+1 0 0 0 0 6 1 6 24060106
+1 0 0 0 0 7 1 6 24070106
+1 0 0 0 0 8 1 6 24080106
+1 0 0 0 0 9 1 6 24090106
-"Time = 1.000000
-0.150000 24000104.0000000000000
-0.450000 24010104.0000000000000
-0.750000 24020104.0000000000000
-1.050000 24030104.0000000000000
-1.350000 24040104.0000000000000
-1.650000 24050104.0000000000000
-1.950000 24060104.0000000000000
-2.250000 24070104.0000000000000
-2.550000 24080104.0000000000000
-2.850000 24090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/tyy.yl b/CarpetAttic/Cart3dTest/test/axial-xy/tyy.yl
index d047f43eb..c536b5262 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/tyy.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/tyy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy y (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 6 24000006
+0 0 0 0 0 0 1 6 24000106
+0 0 0 0 0 0 2 6 24000206
+0 0 0 0 0 0 3 6 24000306
+0 0 0 0 0 0 4 6 24000406
+0 0 0 0 0 0 5 6 24000506
+0 0 0 0 0 0 6 6 24000606
+0 0 0 0 0 0 7 6 24000706
+0 0 0 0 0 0 8 6 24000806
+0 0 0 0 0 0 9 6 24000906
+0 0 0 0 0 0 10 6 24001006
-"Time = 0.000000
--0.150000 24000004.0000000000000
-0.150000 24000104.0000000000000
-0.450000 24000204.0000000000000
-0.750000 24000304.0000000000000
-1.050000 24000404.0000000000000
-1.350000 24000504.0000000000000
-1.650000 24000604.0000000000000
-1.950000 24000704.0000000000000
-2.250000 24000804.0000000000000
-2.550000 24000904.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 6 21000106
+1 0 0 0 0 0 1 6 24000106
+1 0 0 0 0 0 2 6 24000206
+1 0 0 0 0 0 3 6 24000306
+1 0 0 0 0 0 4 6 24000406
+1 0 0 0 0 0 5 6 24000506
+1 0 0 0 0 0 6 6 24000606
+1 0 0 0 0 0 7 6 24000706
+1 0 0 0 0 0 8 6 24000806
+1 0 0 0 0 0 9 6 24000906
+1 0 0 0 0 0 10 6 24001006
-"Time = 1.000000
--0.150000 24000004.0000000000000
-0.150000 24000104.0000000000000
-0.450000 24000204.0000000000000
-0.750000 24000304.0000000000000
-1.050000 24000404.0000000000000
-1.350000 24000504.0000000000000
-1.650000 24000604.0000000000000
-1.950000 24000704.0000000000000
-2.250000 24000804.0000000000000
-2.550000 24000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/tyy.zl b/CarpetAttic/Cart3dTest/test/axial-xy/tyy.zl
index 107f89e00..e6ceeb100 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/tyy.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/tyy.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::tyy z (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 24000100
+0 0 0 0 0 0 1 1 24000101
+0 0 0 0 0 0 1 2 24000102
+0 0 0 0 0 0 1 3 24000103
+0 0 0 0 0 0 1 4 24000104
+0 0 0 0 0 0 1 5 24000105
+0 0 0 0 0 0 1 6 24000106
+0 0 0 0 0 0 1 7 24000107
+0 0 0 0 0 0 1 8 24000108
+0 0 0 0 0 0 1 9 24000109
+0 0 0 0 0 0 1 10 24000110
+0 0 0 0 0 0 1 11 24000111
-"Time = 0.000000
--1.350000 24000100.0000000000000
--1.050000 24000101.0000000000000
--0.750000 24000102.0000000000000
--0.450000 24000103.0000000000000
--0.150000 24000104.0000000000000
-0.150000 24000105.0000000000000
-0.450000 24000106.0000000000000
-0.750000 24000107.0000000000000
-1.050000 24000108.0000000000000
-1.350000 24000109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 24000100
+1 0 0 0 0 0 1 1 24000101
+1 0 0 0 0 0 1 2 24000102
+1 0 0 0 0 0 1 3 24000103
+1 0 0 0 0 0 1 4 24000104
+1 0 0 0 0 0 1 5 24000105
+1 0 0 0 0 0 1 6 24000106
+1 0 0 0 0 0 1 7 24000107
+1 0 0 0 0 0 1 8 24000108
+1 0 0 0 0 0 1 9 24000109
+1 0 0 0 0 0 1 10 24000110
+1 0 0 0 0 0 1 11 24000111
-"Time = 1.000000
--1.350000 24000100.0000000000000
--1.050000 24000101.0000000000000
--0.750000 24000102.0000000000000
--0.450000 24000103.0000000000000
--0.150000 24000104.0000000000000
-0.150000 24000105.0000000000000
-0.450000 24000106.0000000000000
-0.750000 24000107.0000000000000
-1.050000 24000108.0000000000000
-1.350000 24000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/tyz.xl b/CarpetAttic/Cart3dTest/test/axial-xy/tyz.xl
index 5931df4b0..f60bbc09b 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/tyz.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/tyz.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::tyz x (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 6 25000106
+0 0 0 0 0 1 1 6 25010106
+0 0 0 0 0 2 1 6 25020106
+0 0 0 0 0 3 1 6 25030106
+0 0 0 0 0 4 1 6 25040106
+0 0 0 0 0 5 1 6 25050106
+0 0 0 0 0 6 1 6 25060106
+0 0 0 0 0 7 1 6 25070106
+0 0 0 0 0 8 1 6 25080106
+0 0 0 0 0 9 1 6 25090106
-"Time = 0.000000
-0.150000 25000104.0000000000000
-0.450000 25010104.0000000000000
-0.750000 25020104.0000000000000
-1.050000 25030104.0000000000000
-1.350000 25040104.0000000000000
-1.650000 25050104.0000000000000
-1.950000 25060104.0000000000000
-2.250000 25070104.0000000000000
-2.550000 25080104.0000000000000
-2.850000 25090104.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 6 25000106
+1 0 0 0 0 1 1 6 25010106
+1 0 0 0 0 2 1 6 25020106
+1 0 0 0 0 3 1 6 25030106
+1 0 0 0 0 4 1 6 25040106
+1 0 0 0 0 5 1 6 25050106
+1 0 0 0 0 6 1 6 25060106
+1 0 0 0 0 7 1 6 25070106
+1 0 0 0 0 8 1 6 25080106
+1 0 0 0 0 9 1 6 25090106
-"Time = 1.000000
-0.150000 25000104.0000000000000
-0.450000 25010104.0000000000000
-0.750000 25020104.0000000000000
-1.050000 25030104.0000000000000
-1.350000 25040104.0000000000000
-1.650000 25050104.0000000000000
-1.950000 25060104.0000000000000
-2.250000 25070104.0000000000000
-2.550000 25080104.0000000000000
-2.850000 25090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/tyz.yl b/CarpetAttic/Cart3dTest/test/axial-xy/tyz.yl
index b1787ea2a..1a17d43e6 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/tyz.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/tyz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz y (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 6 25000006
+0 0 0 0 0 0 1 6 25000106
+0 0 0 0 0 0 2 6 25000206
+0 0 0 0 0 0 3 6 25000306
+0 0 0 0 0 0 4 6 25000406
+0 0 0 0 0 0 5 6 25000506
+0 0 0 0 0 0 6 6 25000606
+0 0 0 0 0 0 7 6 25000706
+0 0 0 0 0 0 8 6 25000806
+0 0 0 0 0 0 9 6 25000906
+0 0 0 0 0 0 10 6 25001006
-"Time = 0.000000
--0.150000 25000004.0000000000000
-0.150000 25000104.0000000000000
-0.450000 25000204.0000000000000
-0.750000 25000304.0000000000000
-1.050000 25000404.0000000000000
-1.350000 25000504.0000000000000
-1.650000 25000604.0000000000000
-1.950000 25000704.0000000000000
-2.250000 25000804.0000000000000
-2.550000 25000904.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 6 -23000106
+1 0 0 0 0 0 1 6 25000106
+1 0 0 0 0 0 2 6 25000206
+1 0 0 0 0 0 3 6 25000306
+1 0 0 0 0 0 4 6 25000406
+1 0 0 0 0 0 5 6 25000506
+1 0 0 0 0 0 6 6 25000606
+1 0 0 0 0 0 7 6 25000706
+1 0 0 0 0 0 8 6 25000806
+1 0 0 0 0 0 9 6 25000906
+1 0 0 0 0 0 10 6 25001006
-"Time = 1.000000
--0.150000 -25000004.0000000000000
-0.150000 25000104.0000000000000
-0.450000 25000204.0000000000000
-0.750000 25000304.0000000000000
-1.050000 25000404.0000000000000
-1.350000 25000504.0000000000000
-1.650000 25000604.0000000000000
-1.950000 25000704.0000000000000
-2.250000 25000804.0000000000000
-2.550000 25000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/tyz.zl b/CarpetAttic/Cart3dTest/test/axial-xy/tyz.zl
index 108e8f3bc..563801ad3 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/tyz.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/tyz.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::tyz z (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 25000100
+0 0 0 0 0 0 1 1 25000101
+0 0 0 0 0 0 1 2 25000102
+0 0 0 0 0 0 1 3 25000103
+0 0 0 0 0 0 1 4 25000104
+0 0 0 0 0 0 1 5 25000105
+0 0 0 0 0 0 1 6 25000106
+0 0 0 0 0 0 1 7 25000107
+0 0 0 0 0 0 1 8 25000108
+0 0 0 0 0 0 1 9 25000109
+0 0 0 0 0 0 1 10 25000110
+0 0 0 0 0 0 1 11 25000111
-"Time = 0.000000
--1.350000 25000100.0000000000000
--1.050000 25000101.0000000000000
--0.750000 25000102.0000000000000
--0.450000 25000103.0000000000000
--0.150000 25000104.0000000000000
-0.150000 25000105.0000000000000
-0.450000 25000106.0000000000000
-0.750000 25000107.0000000000000
-1.050000 25000108.0000000000000
-1.350000 25000109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 25000100
+1 0 0 0 0 0 1 1 25000101
+1 0 0 0 0 0 1 2 25000102
+1 0 0 0 0 0 1 3 25000103
+1 0 0 0 0 0 1 4 25000104
+1 0 0 0 0 0 1 5 25000105
+1 0 0 0 0 0 1 6 25000106
+1 0 0 0 0 0 1 7 25000107
+1 0 0 0 0 0 1 8 25000108
+1 0 0 0 0 0 1 9 25000109
+1 0 0 0 0 0 1 10 25000110
+1 0 0 0 0 0 1 11 25000111
-"Time = 1.000000
--1.350000 25000100.0000000000000
--1.050000 25000101.0000000000000
--0.750000 25000102.0000000000000
--0.450000 25000103.0000000000000
--0.150000 25000104.0000000000000
-0.150000 25000105.0000000000000
-0.450000 25000106.0000000000000
-0.750000 25000107.0000000000000
-1.050000 25000108.0000000000000
-1.350000 25000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/tzz.xl b/CarpetAttic/Cart3dTest/test/axial-xy/tzz.xl
index 7038fadcf..a2e6fb65f 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/tzz.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/tzz.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::tzz x (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 6 26000106
+0 0 0 0 0 1 1 6 26010106
+0 0 0 0 0 2 1 6 26020106
+0 0 0 0 0 3 1 6 26030106
+0 0 0 0 0 4 1 6 26040106
+0 0 0 0 0 5 1 6 26050106
+0 0 0 0 0 6 1 6 26060106
+0 0 0 0 0 7 1 6 26070106
+0 0 0 0 0 8 1 6 26080106
+0 0 0 0 0 9 1 6 26090106
-"Time = 0.000000
-0.150000 26000104.0000000000000
-0.450000 26010104.0000000000000
-0.750000 26020104.0000000000000
-1.050000 26030104.0000000000000
-1.350000 26040104.0000000000000
-1.650000 26050104.0000000000000
-1.950000 26060104.0000000000000
-2.250000 26070104.0000000000000
-2.550000 26080104.0000000000000
-2.850000 26090104.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 6 26000106
+1 0 0 0 0 1 1 6 26010106
+1 0 0 0 0 2 1 6 26020106
+1 0 0 0 0 3 1 6 26030106
+1 0 0 0 0 4 1 6 26040106
+1 0 0 0 0 5 1 6 26050106
+1 0 0 0 0 6 1 6 26060106
+1 0 0 0 0 7 1 6 26070106
+1 0 0 0 0 8 1 6 26080106
+1 0 0 0 0 9 1 6 26090106
-"Time = 1.000000
-0.150000 26000104.0000000000000
-0.450000 26010104.0000000000000
-0.750000 26020104.0000000000000
-1.050000 26030104.0000000000000
-1.350000 26040104.0000000000000
-1.650000 26050104.0000000000000
-1.950000 26060104.0000000000000
-2.250000 26070104.0000000000000
-2.550000 26080104.0000000000000
-2.850000 26090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/tzz.yl b/CarpetAttic/Cart3dTest/test/axial-xy/tzz.yl
index 7d6fef601..4cf44a850 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/tzz.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/tzz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz y (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 6 26000006
+0 0 0 0 0 0 1 6 26000106
+0 0 0 0 0 0 2 6 26000206
+0 0 0 0 0 0 3 6 26000306
+0 0 0 0 0 0 4 6 26000406
+0 0 0 0 0 0 5 6 26000506
+0 0 0 0 0 0 6 6 26000606
+0 0 0 0 0 0 7 6 26000706
+0 0 0 0 0 0 8 6 26000806
+0 0 0 0 0 0 9 6 26000906
+0 0 0 0 0 0 10 6 26001006
-"Time = 0.000000
--0.150000 26000004.0000000000000
-0.150000 26000104.0000000000000
-0.450000 26000204.0000000000000
-0.750000 26000304.0000000000000
-1.050000 26000404.0000000000000
-1.350000 26000504.0000000000000
-1.650000 26000604.0000000000000
-1.950000 26000704.0000000000000
-2.250000 26000804.0000000000000
-2.550000 26000904.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 6 26000106
+1 0 0 0 0 0 1 6 26000106
+1 0 0 0 0 0 2 6 26000206
+1 0 0 0 0 0 3 6 26000306
+1 0 0 0 0 0 4 6 26000406
+1 0 0 0 0 0 5 6 26000506
+1 0 0 0 0 0 6 6 26000606
+1 0 0 0 0 0 7 6 26000706
+1 0 0 0 0 0 8 6 26000806
+1 0 0 0 0 0 9 6 26000906
+1 0 0 0 0 0 10 6 26001006
-"Time = 1.000000
--0.150000 26000004.0000000000000
-0.150000 26000104.0000000000000
-0.450000 26000204.0000000000000
-0.750000 26000304.0000000000000
-1.050000 26000404.0000000000000
-1.350000 26000504.0000000000000
-1.650000 26000604.0000000000000
-1.950000 26000704.0000000000000
-2.250000 26000804.0000000000000
-2.550000 26000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/tzz.zl b/CarpetAttic/Cart3dTest/test/axial-xy/tzz.zl
index a7bc8d067..212fddec9 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/tzz.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/tzz.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::tzz z (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 26000100
+0 0 0 0 0 0 1 1 26000101
+0 0 0 0 0 0 1 2 26000102
+0 0 0 0 0 0 1 3 26000103
+0 0 0 0 0 0 1 4 26000104
+0 0 0 0 0 0 1 5 26000105
+0 0 0 0 0 0 1 6 26000106
+0 0 0 0 0 0 1 7 26000107
+0 0 0 0 0 0 1 8 26000108
+0 0 0 0 0 0 1 9 26000109
+0 0 0 0 0 0 1 10 26000110
+0 0 0 0 0 0 1 11 26000111
-"Time = 0.000000
--1.350000 26000100.0000000000000
--1.050000 26000101.0000000000000
--0.750000 26000102.0000000000000
--0.450000 26000103.0000000000000
--0.150000 26000104.0000000000000
-0.150000 26000105.0000000000000
-0.450000 26000106.0000000000000
-0.750000 26000107.0000000000000
-1.050000 26000108.0000000000000
-1.350000 26000109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 26000100
+1 0 0 0 0 0 1 1 26000101
+1 0 0 0 0 0 1 2 26000102
+1 0 0 0 0 0 1 3 26000103
+1 0 0 0 0 0 1 4 26000104
+1 0 0 0 0 0 1 5 26000105
+1 0 0 0 0 0 1 6 26000106
+1 0 0 0 0 0 1 7 26000107
+1 0 0 0 0 0 1 8 26000108
+1 0 0 0 0 0 1 9 26000109
+1 0 0 0 0 0 1 10 26000110
+1 0 0 0 0 0 1 11 26000111
-"Time = 1.000000
--1.350000 26000100.0000000000000
--1.050000 26000101.0000000000000
--0.750000 26000102.0000000000000
--0.450000 26000103.0000000000000
--0.150000 26000104.0000000000000
-0.150000 26000105.0000000000000
-0.450000 26000106.0000000000000
-0.750000 26000107.0000000000000
-1.050000 26000108.0000000000000
-1.350000 26000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/vx.xl b/CarpetAttic/Cart3dTest/test/axial-xy/vx.xl
index defe4478d..1f0449057 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/vx.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/vx.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::vx x (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 6 11000106
+0 0 0 0 0 1 1 6 11010106
+0 0 0 0 0 2 1 6 11020106
+0 0 0 0 0 3 1 6 11030106
+0 0 0 0 0 4 1 6 11040106
+0 0 0 0 0 5 1 6 11050106
+0 0 0 0 0 6 1 6 11060106
+0 0 0 0 0 7 1 6 11070106
+0 0 0 0 0 8 1 6 11080106
+0 0 0 0 0 9 1 6 11090106
-"Time = 0.000000
-0.150000 11000104.0000000000000
-0.450000 11010104.0000000000000
-0.750000 11020104.0000000000000
-1.050000 11030104.0000000000000
-1.350000 11040104.0000000000000
-1.650000 11050104.0000000000000
-1.950000 11060104.0000000000000
-2.250000 11070104.0000000000000
-2.550000 11080104.0000000000000
-2.850000 11090104.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 6 11000106
+1 0 0 0 0 1 1 6 11010106
+1 0 0 0 0 2 1 6 11020106
+1 0 0 0 0 3 1 6 11030106
+1 0 0 0 0 4 1 6 11040106
+1 0 0 0 0 5 1 6 11050106
+1 0 0 0 0 6 1 6 11060106
+1 0 0 0 0 7 1 6 11070106
+1 0 0 0 0 8 1 6 11080106
+1 0 0 0 0 9 1 6 11090106
-"Time = 1.000000
-0.150000 11000104.0000000000000
-0.450000 11010104.0000000000000
-0.750000 11020104.0000000000000
-1.050000 11030104.0000000000000
-1.350000 11040104.0000000000000
-1.650000 11050104.0000000000000
-1.950000 11060104.0000000000000
-2.250000 11070104.0000000000000
-2.550000 11080104.0000000000000
-2.850000 11090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/vx.yl b/CarpetAttic/Cart3dTest/test/axial-xy/vx.yl
index 9f380d26b..241b0faf8 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/vx.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/vx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx y (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 6 11000006
+0 0 0 0 0 0 1 6 11000106
+0 0 0 0 0 0 2 6 11000206
+0 0 0 0 0 0 3 6 11000306
+0 0 0 0 0 0 4 6 11000406
+0 0 0 0 0 0 5 6 11000506
+0 0 0 0 0 0 6 6 11000606
+0 0 0 0 0 0 7 6 11000706
+0 0 0 0 0 0 8 6 11000806
+0 0 0 0 0 0 9 6 11000906
+0 0 0 0 0 0 10 6 11001006
-"Time = 0.000000
--0.150000 11000004.0000000000000
-0.150000 11000104.0000000000000
-0.450000 11000204.0000000000000
-0.750000 11000304.0000000000000
-1.050000 11000404.0000000000000
-1.350000 11000504.0000000000000
-1.650000 11000604.0000000000000
-1.950000 11000704.0000000000000
-2.250000 11000804.0000000000000
-2.550000 11000904.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 6 12000106
+1 0 0 0 0 0 1 6 11000106
+1 0 0 0 0 0 2 6 11000206
+1 0 0 0 0 0 3 6 11000306
+1 0 0 0 0 0 4 6 11000406
+1 0 0 0 0 0 5 6 11000506
+1 0 0 0 0 0 6 6 11000606
+1 0 0 0 0 0 7 6 11000706
+1 0 0 0 0 0 8 6 11000806
+1 0 0 0 0 0 9 6 11000906
+1 0 0 0 0 0 10 6 11001006
-"Time = 1.000000
--0.150000 12000004.0000000000000
-0.150000 11000104.0000000000000
-0.450000 11000204.0000000000000
-0.750000 11000304.0000000000000
-1.050000 11000404.0000000000000
-1.350000 11000504.0000000000000
-1.650000 11000604.0000000000000
-1.950000 11000704.0000000000000
-2.250000 11000804.0000000000000
-2.550000 11000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/vx.zl b/CarpetAttic/Cart3dTest/test/axial-xy/vx.zl
index 64b9851ab..8cbc4601b 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/vx.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/vx.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::vx z (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 11000100
+0 0 0 0 0 0 1 1 11000101
+0 0 0 0 0 0 1 2 11000102
+0 0 0 0 0 0 1 3 11000103
+0 0 0 0 0 0 1 4 11000104
+0 0 0 0 0 0 1 5 11000105
+0 0 0 0 0 0 1 6 11000106
+0 0 0 0 0 0 1 7 11000107
+0 0 0 0 0 0 1 8 11000108
+0 0 0 0 0 0 1 9 11000109
+0 0 0 0 0 0 1 10 11000110
+0 0 0 0 0 0 1 11 11000111
-"Time = 0.000000
--1.350000 11000100.0000000000000
--1.050000 11000101.0000000000000
--0.750000 11000102.0000000000000
--0.450000 11000103.0000000000000
--0.150000 11000104.0000000000000
-0.150000 11000105.0000000000000
-0.450000 11000106.0000000000000
-0.750000 11000107.0000000000000
-1.050000 11000108.0000000000000
-1.350000 11000109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 11000100
+1 0 0 0 0 0 1 1 11000101
+1 0 0 0 0 0 1 2 11000102
+1 0 0 0 0 0 1 3 11000103
+1 0 0 0 0 0 1 4 11000104
+1 0 0 0 0 0 1 5 11000105
+1 0 0 0 0 0 1 6 11000106
+1 0 0 0 0 0 1 7 11000107
+1 0 0 0 0 0 1 8 11000108
+1 0 0 0 0 0 1 9 11000109
+1 0 0 0 0 0 1 10 11000110
+1 0 0 0 0 0 1 11 11000111
-"Time = 1.000000
--1.350000 11000100.0000000000000
--1.050000 11000101.0000000000000
--0.750000 11000102.0000000000000
--0.450000 11000103.0000000000000
--0.150000 11000104.0000000000000
-0.150000 11000105.0000000000000
-0.450000 11000106.0000000000000
-0.750000 11000107.0000000000000
-1.050000 11000108.0000000000000
-1.350000 11000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/vy.xl b/CarpetAttic/Cart3dTest/test/axial-xy/vy.xl
index 335fa21a1..afea29a20 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/vy.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/vy.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::vy x (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 6 12000106
+0 0 0 0 0 1 1 6 12010106
+0 0 0 0 0 2 1 6 12020106
+0 0 0 0 0 3 1 6 12030106
+0 0 0 0 0 4 1 6 12040106
+0 0 0 0 0 5 1 6 12050106
+0 0 0 0 0 6 1 6 12060106
+0 0 0 0 0 7 1 6 12070106
+0 0 0 0 0 8 1 6 12080106
+0 0 0 0 0 9 1 6 12090106
-"Time = 0.000000
-0.150000 12000104.0000000000000
-0.450000 12010104.0000000000000
-0.750000 12020104.0000000000000
-1.050000 12030104.0000000000000
-1.350000 12040104.0000000000000
-1.650000 12050104.0000000000000
-1.950000 12060104.0000000000000
-2.250000 12070104.0000000000000
-2.550000 12080104.0000000000000
-2.850000 12090104.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 6 12000106
+1 0 0 0 0 1 1 6 12010106
+1 0 0 0 0 2 1 6 12020106
+1 0 0 0 0 3 1 6 12030106
+1 0 0 0 0 4 1 6 12040106
+1 0 0 0 0 5 1 6 12050106
+1 0 0 0 0 6 1 6 12060106
+1 0 0 0 0 7 1 6 12070106
+1 0 0 0 0 8 1 6 12080106
+1 0 0 0 0 9 1 6 12090106
-"Time = 1.000000
-0.150000 12000104.0000000000000
-0.450000 12010104.0000000000000
-0.750000 12020104.0000000000000
-1.050000 12030104.0000000000000
-1.350000 12040104.0000000000000
-1.650000 12050104.0000000000000
-1.950000 12060104.0000000000000
-2.250000 12070104.0000000000000
-2.550000 12080104.0000000000000
-2.850000 12090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/vy.yl b/CarpetAttic/Cart3dTest/test/axial-xy/vy.yl
index f5993b7a3..1dd88e42c 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/vy.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/vy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy y (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 6 12000006
+0 0 0 0 0 0 1 6 12000106
+0 0 0 0 0 0 2 6 12000206
+0 0 0 0 0 0 3 6 12000306
+0 0 0 0 0 0 4 6 12000406
+0 0 0 0 0 0 5 6 12000506
+0 0 0 0 0 0 6 6 12000606
+0 0 0 0 0 0 7 6 12000706
+0 0 0 0 0 0 8 6 12000806
+0 0 0 0 0 0 9 6 12000906
+0 0 0 0 0 0 10 6 12001006
-"Time = 0.000000
--0.150000 12000004.0000000000000
-0.150000 12000104.0000000000000
-0.450000 12000204.0000000000000
-0.750000 12000304.0000000000000
-1.050000 12000404.0000000000000
-1.350000 12000504.0000000000000
-1.650000 12000604.0000000000000
-1.950000 12000704.0000000000000
-2.250000 12000804.0000000000000
-2.550000 12000904.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 6 -11000106
+1 0 0 0 0 0 1 6 12000106
+1 0 0 0 0 0 2 6 12000206
+1 0 0 0 0 0 3 6 12000306
+1 0 0 0 0 0 4 6 12000406
+1 0 0 0 0 0 5 6 12000506
+1 0 0 0 0 0 6 6 12000606
+1 0 0 0 0 0 7 6 12000706
+1 0 0 0 0 0 8 6 12000806
+1 0 0 0 0 0 9 6 12000906
+1 0 0 0 0 0 10 6 12001006
-"Time = 1.000000
--0.150000 -12000004.0000000000000
-0.150000 12000104.0000000000000
-0.450000 12000204.0000000000000
-0.750000 12000304.0000000000000
-1.050000 12000404.0000000000000
-1.350000 12000504.0000000000000
-1.650000 12000604.0000000000000
-1.950000 12000704.0000000000000
-2.250000 12000804.0000000000000
-2.550000 12000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/vy.zl b/CarpetAttic/Cart3dTest/test/axial-xy/vy.zl
index 14028a501..bfcf8fee5 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/vy.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/vy.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::vy z (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 12000100
+0 0 0 0 0 0 1 1 12000101
+0 0 0 0 0 0 1 2 12000102
+0 0 0 0 0 0 1 3 12000103
+0 0 0 0 0 0 1 4 12000104
+0 0 0 0 0 0 1 5 12000105
+0 0 0 0 0 0 1 6 12000106
+0 0 0 0 0 0 1 7 12000107
+0 0 0 0 0 0 1 8 12000108
+0 0 0 0 0 0 1 9 12000109
+0 0 0 0 0 0 1 10 12000110
+0 0 0 0 0 0 1 11 12000111
-"Time = 0.000000
--1.350000 12000100.0000000000000
--1.050000 12000101.0000000000000
--0.750000 12000102.0000000000000
--0.450000 12000103.0000000000000
--0.150000 12000104.0000000000000
-0.150000 12000105.0000000000000
-0.450000 12000106.0000000000000
-0.750000 12000107.0000000000000
-1.050000 12000108.0000000000000
-1.350000 12000109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 12000100
+1 0 0 0 0 0 1 1 12000101
+1 0 0 0 0 0 1 2 12000102
+1 0 0 0 0 0 1 3 12000103
+1 0 0 0 0 0 1 4 12000104
+1 0 0 0 0 0 1 5 12000105
+1 0 0 0 0 0 1 6 12000106
+1 0 0 0 0 0 1 7 12000107
+1 0 0 0 0 0 1 8 12000108
+1 0 0 0 0 0 1 9 12000109
+1 0 0 0 0 0 1 10 12000110
+1 0 0 0 0 0 1 11 12000111
-"Time = 1.000000
--1.350000 12000100.0000000000000
--1.050000 12000101.0000000000000
--0.750000 12000102.0000000000000
--0.450000 12000103.0000000000000
--0.150000 12000104.0000000000000
-0.150000 12000105.0000000000000
-0.450000 12000106.0000000000000
-0.750000 12000107.0000000000000
-1.050000 12000108.0000000000000
-1.350000 12000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/vz.xl b/CarpetAttic/Cart3dTest/test/axial-xy/vz.xl
index 9281f6788..23a7cd992 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/vz.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/vz.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::vz x (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 6 13000106
+0 0 0 0 0 1 1 6 13010106
+0 0 0 0 0 2 1 6 13020106
+0 0 0 0 0 3 1 6 13030106
+0 0 0 0 0 4 1 6 13040106
+0 0 0 0 0 5 1 6 13050106
+0 0 0 0 0 6 1 6 13060106
+0 0 0 0 0 7 1 6 13070106
+0 0 0 0 0 8 1 6 13080106
+0 0 0 0 0 9 1 6 13090106
-"Time = 0.000000
-0.150000 13000104.0000000000000
-0.450000 13010104.0000000000000
-0.750000 13020104.0000000000000
-1.050000 13030104.0000000000000
-1.350000 13040104.0000000000000
-1.650000 13050104.0000000000000
-1.950000 13060104.0000000000000
-2.250000 13070104.0000000000000
-2.550000 13080104.0000000000000
-2.850000 13090104.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 6 13000106
+1 0 0 0 0 1 1 6 13010106
+1 0 0 0 0 2 1 6 13020106
+1 0 0 0 0 3 1 6 13030106
+1 0 0 0 0 4 1 6 13040106
+1 0 0 0 0 5 1 6 13050106
+1 0 0 0 0 6 1 6 13060106
+1 0 0 0 0 7 1 6 13070106
+1 0 0 0 0 8 1 6 13080106
+1 0 0 0 0 9 1 6 13090106
-"Time = 1.000000
-0.150000 13000104.0000000000000
-0.450000 13010104.0000000000000
-0.750000 13020104.0000000000000
-1.050000 13030104.0000000000000
-1.350000 13040104.0000000000000
-1.650000 13050104.0000000000000
-1.950000 13060104.0000000000000
-2.250000 13070104.0000000000000
-2.550000 13080104.0000000000000
-2.850000 13090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/vz.yl b/CarpetAttic/Cart3dTest/test/axial-xy/vz.yl
index d31bd9064..d3e3b7c36 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/vz.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/vz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz y (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 6 13000006
+0 0 0 0 0 0 1 6 13000106
+0 0 0 0 0 0 2 6 13000206
+0 0 0 0 0 0 3 6 13000306
+0 0 0 0 0 0 4 6 13000406
+0 0 0 0 0 0 5 6 13000506
+0 0 0 0 0 0 6 6 13000606
+0 0 0 0 0 0 7 6 13000706
+0 0 0 0 0 0 8 6 13000806
+0 0 0 0 0 0 9 6 13000906
+0 0 0 0 0 0 10 6 13001006
-"Time = 0.000000
--0.150000 13000004.0000000000000
-0.150000 13000104.0000000000000
-0.450000 13000204.0000000000000
-0.750000 13000304.0000000000000
-1.050000 13000404.0000000000000
-1.350000 13000504.0000000000000
-1.650000 13000604.0000000000000
-1.950000 13000704.0000000000000
-2.250000 13000804.0000000000000
-2.550000 13000904.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 6 13000106
+1 0 0 0 0 0 1 6 13000106
+1 0 0 0 0 0 2 6 13000206
+1 0 0 0 0 0 3 6 13000306
+1 0 0 0 0 0 4 6 13000406
+1 0 0 0 0 0 5 6 13000506
+1 0 0 0 0 0 6 6 13000606
+1 0 0 0 0 0 7 6 13000706
+1 0 0 0 0 0 8 6 13000806
+1 0 0 0 0 0 9 6 13000906
+1 0 0 0 0 0 10 6 13001006
-"Time = 1.000000
--0.150000 13000004.0000000000000
-0.150000 13000104.0000000000000
-0.450000 13000204.0000000000000
-0.750000 13000304.0000000000000
-1.050000 13000404.0000000000000
-1.350000 13000504.0000000000000
-1.650000 13000604.0000000000000
-1.950000 13000704.0000000000000
-2.250000 13000804.0000000000000
-2.550000 13000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xy/vz.zl b/CarpetAttic/Cart3dTest/test/axial-xy/vz.zl
index 49a900d10..4dcc04892 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xy/vz.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xy/vz.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::vz z (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 13000100
+0 0 0 0 0 0 1 1 13000101
+0 0 0 0 0 0 1 2 13000102
+0 0 0 0 0 0 1 3 13000103
+0 0 0 0 0 0 1 4 13000104
+0 0 0 0 0 0 1 5 13000105
+0 0 0 0 0 0 1 6 13000106
+0 0 0 0 0 0 1 7 13000107
+0 0 0 0 0 0 1 8 13000108
+0 0 0 0 0 0 1 9 13000109
+0 0 0 0 0 0 1 10 13000110
+0 0 0 0 0 0 1 11 13000111
-"Time = 0.000000
--1.350000 13000100.0000000000000
--1.050000 13000101.0000000000000
--0.750000 13000102.0000000000000
--0.450000 13000103.0000000000000
--0.150000 13000104.0000000000000
-0.150000 13000105.0000000000000
-0.450000 13000106.0000000000000
-0.750000 13000107.0000000000000
-1.050000 13000108.0000000000000
-1.350000 13000109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 13000100
+1 0 0 0 0 0 1 1 13000101
+1 0 0 0 0 0 1 2 13000102
+1 0 0 0 0 0 1 3 13000103
+1 0 0 0 0 0 1 4 13000104
+1 0 0 0 0 0 1 5 13000105
+1 0 0 0 0 0 1 6 13000106
+1 0 0 0 0 0 1 7 13000107
+1 0 0 0 0 0 1 8 13000108
+1 0 0 0 0 0 1 9 13000109
+1 0 0 0 0 0 1 10 13000110
+1 0 0 0 0 0 1 11 13000111
-"Time = 1.000000
--1.350000 13000100.0000000000000
--1.050000 13000101.0000000000000
--0.750000 13000102.0000000000000
--0.450000 13000103.0000000000000
--0.150000 13000104.0000000000000
-0.150000 13000105.0000000000000
-0.450000 13000106.0000000000000
-0.750000 13000107.0000000000000
-1.050000 13000108.0000000000000
-1.350000 13000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/ax.xl b/CarpetAttic/Cart3dTest/test/axial-xz/ax.xl
index 2139820c7..7996e4a40 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/ax.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/ax.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::ax x (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 31000502
+0 0 0 0 0 1 5 2 31010502
+0 0 0 0 0 2 5 2 31020502
+0 0 0 0 0 3 5 2 31030502
+0 0 0 0 0 4 5 2 31040502
+0 0 0 0 0 5 5 2 31050502
+0 0 0 0 0 6 5 2 31060502
+0 0 0 0 0 7 5 2 31070502
+0 0 0 0 0 8 5 2 31080502
+0 0 0 0 0 9 5 2 31090502
-"Time = 0.000000
-0.150000 31000401.0000000000000
-0.450000 31010401.0000000000000
-0.750000 31020401.0000000000000
-1.050000 31030401.0000000000000
-1.350000 31040401.0000000000000
-1.650000 31050401.0000000000000
-1.950000 31060401.0000000000000
-2.250000 31070401.0000000000000
-2.550000 31080401.0000000000000
-2.850000 31090401.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 31000502
+1 0 0 0 0 1 5 2 31010502
+1 0 0 0 0 2 5 2 31020502
+1 0 0 0 0 3 5 2 31030502
+1 0 0 0 0 4 5 2 31040502
+1 0 0 0 0 5 5 2 31050502
+1 0 0 0 0 6 5 2 31060502
+1 0 0 0 0 7 5 2 31070502
+1 0 0 0 0 8 5 2 31080502
+1 0 0 0 0 9 5 2 31090502
-"Time = 1.000000
-0.150000 33000400.0000000000000
-0.450000 33000401.0000000000000
-0.750000 33000402.0000000000000
-1.050000 33000403.0000000000000
-1.350000 33000404.0000000000000
-1.650000 33000405.0000000000000
-1.950000 33000406.0000000000000
-2.250000 33000407.0000000000000
-2.550000 33000408.0000000000000
-2.850000 33000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/ax.yl b/CarpetAttic/Cart3dTest/test/axial-xz/ax.yl
index 2196e238d..64c4405fe 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/ax.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/ax.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax y (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 31000002
+0 0 0 0 0 0 1 2 31000102
+0 0 0 0 0 0 2 2 31000202
+0 0 0 0 0 0 3 2 31000302
+0 0 0 0 0 0 4 2 31000402
+0 0 0 0 0 0 5 2 31000502
+0 0 0 0 0 0 6 2 31000602
+0 0 0 0 0 0 7 2 31000702
+0 0 0 0 0 0 8 2 31000802
+0 0 0 0 0 0 9 2 31000902
+0 0 0 0 0 0 10 2 31001002
-"Time = 0.000000
--1.350000 31000001.0000000000000
--1.050000 31000101.0000000000000
--0.750000 31000201.0000000000000
--0.450000 31000301.0000000000000
--0.150000 31000401.0000000000000
-0.150000 31000501.0000000000000
-0.450000 31000601.0000000000000
-0.750000 31000701.0000000000000
-1.050000 31000801.0000000000000
-1.350000 31000901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 31000002
+1 0 0 0 0 0 1 2 31000102
+1 0 0 0 0 0 2 2 31000202
+1 0 0 0 0 0 3 2 31000302
+1 0 0 0 0 0 4 2 31000402
+1 0 0 0 0 0 5 2 31000502
+1 0 0 0 0 0 6 2 31000602
+1 0 0 0 0 0 7 2 31000702
+1 0 0 0 0 0 8 2 31000802
+1 0 0 0 0 0 9 2 31000902
+1 0 0 0 0 0 10 2 31001002
-"Time = 1.000000
--1.350000 33000000.0000000000000
--1.050000 33000100.0000000000000
--0.750000 33000200.0000000000000
--0.450000 33000300.0000000000000
--0.150000 33000400.0000000000000
-0.150000 33000500.0000000000000
-0.450000 33000600.0000000000000
-0.750000 33000700.0000000000000
-1.050000 33000800.0000000000000
-1.350000 33000900.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/ax.zl b/CarpetAttic/Cart3dTest/test/axial-xz/ax.zl
index 81ea2c689..593f10a7a 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/ax.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/ax.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::ax z (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 31000500
+0 0 0 0 0 0 5 1 31000501
+0 0 0 0 0 0 5 2 31000502
+0 0 0 0 0 0 5 3 31000503
+0 0 0 0 0 0 5 4 31000504
+0 0 0 0 0 0 5 5 31000505
+0 0 0 0 0 0 5 6 31000506
+0 0 0 0 0 0 5 7 31000507
+0 0 0 0 0 0 5 8 31000508
+0 0 0 0 0 0 5 9 31000509
+0 0 0 0 0 0 5 10 31000510
+0 0 0 0 0 0 5 11 31000511
-"Time = 0.000000
--0.450000 31000400.0000000000000
--0.150000 31000401.0000000000000
-0.150000 31000402.0000000000000
-0.450000 31000403.0000000000000
-0.750000 31000404.0000000000000
-1.050000 31000405.0000000000000
-1.350000 31000406.0000000000000
-1.650000 31000407.0000000000000
-1.950000 31000408.0000000000000
-2.250000 31000409.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 33010502
+1 0 0 0 0 0 5 1 33000502
+1 0 0 0 0 0 5 2 31000502
+1 0 0 0 0 0 5 3 31000503
+1 0 0 0 0 0 5 4 31000504
+1 0 0 0 0 0 5 5 31000505
+1 0 0 0 0 0 5 6 31000506
+1 0 0 0 0 0 5 7 31000507
+1 0 0 0 0 0 5 8 31000508
+1 0 0 0 0 0 5 9 31000509
+1 0 0 0 0 0 5 10 31000510
+1 0 0 0 0 0 5 11 31000511
-"Time = 1.000000
--0.450000 33010400.0000000000000
--0.150000 33000400.0000000000000
-0.150000 31000402.0000000000000
-0.450000 31000403.0000000000000
-0.750000 31000404.0000000000000
-1.050000 31000405.0000000000000
-1.350000 31000406.0000000000000
-1.650000 31000407.0000000000000
-1.950000 31000408.0000000000000
-2.250000 31000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/ay.xl b/CarpetAttic/Cart3dTest/test/axial-xz/ay.xl
index beb9c6ca1..2bc308805 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/ay.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/ay.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::ay x (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 32000502
+0 0 0 0 0 1 5 2 32010502
+0 0 0 0 0 2 5 2 32020502
+0 0 0 0 0 3 5 2 32030502
+0 0 0 0 0 4 5 2 32040502
+0 0 0 0 0 5 5 2 32050502
+0 0 0 0 0 6 5 2 32060502
+0 0 0 0 0 7 5 2 32070502
+0 0 0 0 0 8 5 2 32080502
+0 0 0 0 0 9 5 2 32090502
-"Time = 0.000000
-0.150000 32000401.0000000000000
-0.450000 32010401.0000000000000
-0.750000 32020401.0000000000000
-1.050000 32030401.0000000000000
-1.350000 32040401.0000000000000
-1.650000 32050401.0000000000000
-1.950000 32060401.0000000000000
-2.250000 32070401.0000000000000
-2.550000 32080401.0000000000000
-2.850000 32090401.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 32000502
+1 0 0 0 0 1 5 2 32010502
+1 0 0 0 0 2 5 2 32020502
+1 0 0 0 0 3 5 2 32030502
+1 0 0 0 0 4 5 2 32040502
+1 0 0 0 0 5 5 2 32050502
+1 0 0 0 0 6 5 2 32060502
+1 0 0 0 0 7 5 2 32070502
+1 0 0 0 0 8 5 2 32080502
+1 0 0 0 0 9 5 2 32090502
-"Time = 1.000000
-0.150000 32000400.0000000000000
-0.450000 32000401.0000000000000
-0.750000 32000402.0000000000000
-1.050000 32000403.0000000000000
-1.350000 32000404.0000000000000
-1.650000 32000405.0000000000000
-1.950000 32000406.0000000000000
-2.250000 32000407.0000000000000
-2.550000 32000408.0000000000000
-2.850000 32000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/ay.yl b/CarpetAttic/Cart3dTest/test/axial-xz/ay.yl
index abf7fbe56..ce70326e0 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/ay.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/ay.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay y (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 32000002
+0 0 0 0 0 0 1 2 32000102
+0 0 0 0 0 0 2 2 32000202
+0 0 0 0 0 0 3 2 32000302
+0 0 0 0 0 0 4 2 32000402
+0 0 0 0 0 0 5 2 32000502
+0 0 0 0 0 0 6 2 32000602
+0 0 0 0 0 0 7 2 32000702
+0 0 0 0 0 0 8 2 32000802
+0 0 0 0 0 0 9 2 32000902
+0 0 0 0 0 0 10 2 32001002
-"Time = 0.000000
--1.350000 32000001.0000000000000
--1.050000 32000101.0000000000000
--0.750000 32000201.0000000000000
--0.450000 32000301.0000000000000
--0.150000 32000401.0000000000000
-0.150000 32000501.0000000000000
-0.450000 32000601.0000000000000
-0.750000 32000701.0000000000000
-1.050000 32000801.0000000000000
-1.350000 32000901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 32000002
+1 0 0 0 0 0 1 2 32000102
+1 0 0 0 0 0 2 2 32000202
+1 0 0 0 0 0 3 2 32000302
+1 0 0 0 0 0 4 2 32000402
+1 0 0 0 0 0 5 2 32000502
+1 0 0 0 0 0 6 2 32000602
+1 0 0 0 0 0 7 2 32000702
+1 0 0 0 0 0 8 2 32000802
+1 0 0 0 0 0 9 2 32000902
+1 0 0 0 0 0 10 2 32001002
-"Time = 1.000000
--1.350000 32000000.0000000000000
--1.050000 32000100.0000000000000
--0.750000 32000200.0000000000000
--0.450000 32000300.0000000000000
--0.150000 32000400.0000000000000
-0.150000 32000500.0000000000000
-0.450000 32000600.0000000000000
-0.750000 32000700.0000000000000
-1.050000 32000800.0000000000000
-1.350000 32000900.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/ay.zl b/CarpetAttic/Cart3dTest/test/axial-xz/ay.zl
index dbe1a8024..da7819682 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/ay.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/ay.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::ay z (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 32000500
+0 0 0 0 0 0 5 1 32000501
+0 0 0 0 0 0 5 2 32000502
+0 0 0 0 0 0 5 3 32000503
+0 0 0 0 0 0 5 4 32000504
+0 0 0 0 0 0 5 5 32000505
+0 0 0 0 0 0 5 6 32000506
+0 0 0 0 0 0 5 7 32000507
+0 0 0 0 0 0 5 8 32000508
+0 0 0 0 0 0 5 9 32000509
+0 0 0 0 0 0 5 10 32000510
+0 0 0 0 0 0 5 11 32000511
-"Time = 0.000000
--0.450000 32000400.0000000000000
--0.150000 32000401.0000000000000
-0.150000 32000402.0000000000000
-0.450000 32000403.0000000000000
-0.750000 32000404.0000000000000
-1.050000 32000405.0000000000000
-1.350000 32000406.0000000000000
-1.650000 32000407.0000000000000
-1.950000 32000408.0000000000000
-2.250000 32000409.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 32010502
+1 0 0 0 0 0 5 1 32000502
+1 0 0 0 0 0 5 2 32000502
+1 0 0 0 0 0 5 3 32000503
+1 0 0 0 0 0 5 4 32000504
+1 0 0 0 0 0 5 5 32000505
+1 0 0 0 0 0 5 6 32000506
+1 0 0 0 0 0 5 7 32000507
+1 0 0 0 0 0 5 8 32000508
+1 0 0 0 0 0 5 9 32000509
+1 0 0 0 0 0 5 10 32000510
+1 0 0 0 0 0 5 11 32000511
-"Time = 1.000000
--0.450000 32010400.0000000000000
--0.150000 32000400.0000000000000
-0.150000 32000402.0000000000000
-0.450000 32000403.0000000000000
-0.750000 32000404.0000000000000
-1.050000 32000405.0000000000000
-1.350000 32000406.0000000000000
-1.650000 32000407.0000000000000
-1.950000 32000408.0000000000000
-2.250000 32000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/az.xl b/CarpetAttic/Cart3dTest/test/axial-xz/az.xl
index d02782af7..2b0fbd05e 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/az.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/az.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::az x (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 33000502
+0 0 0 0 0 1 5 2 33010502
+0 0 0 0 0 2 5 2 33020502
+0 0 0 0 0 3 5 2 33030502
+0 0 0 0 0 4 5 2 33040502
+0 0 0 0 0 5 5 2 33050502
+0 0 0 0 0 6 5 2 33060502
+0 0 0 0 0 7 5 2 33070502
+0 0 0 0 0 8 5 2 33080502
+0 0 0 0 0 9 5 2 33090502
-"Time = 0.000000
-0.150000 33000401.0000000000000
-0.450000 33010401.0000000000000
-0.750000 33020401.0000000000000
-1.050000 33030401.0000000000000
-1.350000 33040401.0000000000000
-1.650000 33050401.0000000000000
-1.950000 33060401.0000000000000
-2.250000 33070401.0000000000000
-2.550000 33080401.0000000000000
-2.850000 33090401.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 33000502
+1 0 0 0 0 1 5 2 33010502
+1 0 0 0 0 2 5 2 33020502
+1 0 0 0 0 3 5 2 33030502
+1 0 0 0 0 4 5 2 33040502
+1 0 0 0 0 5 5 2 33050502
+1 0 0 0 0 6 5 2 33060502
+1 0 0 0 0 7 5 2 33070502
+1 0 0 0 0 8 5 2 33080502
+1 0 0 0 0 9 5 2 33090502
-"Time = 1.000000
-0.150000 -33010400.0000000000000
-0.450000 -33000400.0000000000000
-0.750000 -31000402.0000000000000
-1.050000 -31000403.0000000000000
-1.350000 -31000404.0000000000000
-1.650000 -31000405.0000000000000
-1.950000 -31000406.0000000000000
-2.250000 -31000407.0000000000000
-2.550000 -31000408.0000000000000
-2.850000 -31000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/az.yl b/CarpetAttic/Cart3dTest/test/axial-xz/az.yl
index ecf20c781..2b671eece 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/az.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/az.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::az y (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 33000002
+0 0 0 0 0 0 1 2 33000102
+0 0 0 0 0 0 2 2 33000202
+0 0 0 0 0 0 3 2 33000302
+0 0 0 0 0 0 4 2 33000402
+0 0 0 0 0 0 5 2 33000502
+0 0 0 0 0 0 6 2 33000602
+0 0 0 0 0 0 7 2 33000702
+0 0 0 0 0 0 8 2 33000802
+0 0 0 0 0 0 9 2 33000902
+0 0 0 0 0 0 10 2 33001002
-"Time = 0.000000
--1.350000 33000001.0000000000000
--1.050000 33000101.0000000000000
--0.750000 33000201.0000000000000
--0.450000 33000301.0000000000000
--0.150000 33000401.0000000000000
-0.150000 33000501.0000000000000
-0.450000 33000601.0000000000000
-0.750000 33000701.0000000000000
-1.050000 33000801.0000000000000
-1.350000 33000901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 33000002
+1 0 0 0 0 0 1 2 33000102
+1 0 0 0 0 0 2 2 33000202
+1 0 0 0 0 0 3 2 33000302
+1 0 0 0 0 0 4 2 33000402
+1 0 0 0 0 0 5 2 33000502
+1 0 0 0 0 0 6 2 33000602
+1 0 0 0 0 0 7 2 33000702
+1 0 0 0 0 0 8 2 33000802
+1 0 0 0 0 0 9 2 33000902
+1 0 0 0 0 0 10 2 33001002
-"Time = 1.000000
--1.350000 -33010000.0000000000000
--1.050000 -33010100.0000000000000
--0.750000 -33010200.0000000000000
--0.450000 -33010300.0000000000000
--0.150000 -33010400.0000000000000
-0.150000 -33010500.0000000000000
-0.450000 -33010600.0000000000000
-0.750000 -33010700.0000000000000
-1.050000 -33010800.0000000000000
-1.350000 -33010900.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/az.zl b/CarpetAttic/Cart3dTest/test/axial-xz/az.zl
index 4e9057917..46b80a563 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/az.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/az.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::az z (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 33000500
+0 0 0 0 0 0 5 1 33000501
+0 0 0 0 0 0 5 2 33000502
+0 0 0 0 0 0 5 3 33000503
+0 0 0 0 0 0 5 4 33000504
+0 0 0 0 0 0 5 5 33000505
+0 0 0 0 0 0 5 6 33000506
+0 0 0 0 0 0 5 7 33000507
+0 0 0 0 0 0 5 8 33000508
+0 0 0 0 0 0 5 9 33000509
+0 0 0 0 0 0 5 10 33000510
+0 0 0 0 0 0 5 11 33000511
-"Time = 0.000000
--0.450000 33000400.0000000000000
--0.150000 33000401.0000000000000
-0.150000 33000402.0000000000000
-0.450000 33000403.0000000000000
-0.750000 33000404.0000000000000
-1.050000 33000405.0000000000000
-1.350000 33000406.0000000000000
-1.650000 33000407.0000000000000
-1.950000 33000408.0000000000000
-2.250000 33000409.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 -31010502
+1 0 0 0 0 0 5 1 -31000502
+1 0 0 0 0 0 5 2 33000502
+1 0 0 0 0 0 5 3 33000503
+1 0 0 0 0 0 5 4 33000504
+1 0 0 0 0 0 5 5 33000505
+1 0 0 0 0 0 5 6 33000506
+1 0 0 0 0 0 5 7 33000507
+1 0 0 0 0 0 5 8 33000508
+1 0 0 0 0 0 5 9 33000509
+1 0 0 0 0 0 5 10 33000510
+1 0 0 0 0 0 5 11 33000511
-"Time = 1.000000
--0.450000 -33010401.0000000000000
--0.150000 -33010400.0000000000000
-0.150000 33000402.0000000000000
-0.450000 33000403.0000000000000
-0.750000 33000404.0000000000000
-1.050000 33000405.0000000000000
-1.350000 33000406.0000000000000
-1.650000 33000407.0000000000000
-1.950000 33000408.0000000000000
-2.250000 33000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_x.xl b/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_x.xl
index 50fd6a322..00a0238f8 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_x.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_x.xl
@@ -1,26 +1,32 @@
+# GRID::cart3d_x x (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 0.15
+0 0 0 0 0 1 5 2 0.45
+0 0 0 0 0 2 5 2 0.75
+0 0 0 0 0 3 5 2 1.05
+0 0 0 0 0 4 5 2 1.35
+0 0 0 0 0 5 5 2 1.65
+0 0 0 0 0 6 5 2 1.95
+0 0 0 0 0 7 5 2 2.25
+0 0 0 0 0 8 5 2 2.55
+0 0 0 0 0 9 5 2 2.85
-"Time = 0.000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
-2.550000 2.5500000000000
-2.850000 2.8500000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 0.15
+1 0 0 0 0 1 5 2 0.45
+1 0 0 0 0 2 5 2 0.75
+1 0 0 0 0 3 5 2 1.05
+1 0 0 0 0 4 5 2 1.35
+1 0 0 0 0 5 5 2 1.65
+1 0 0 0 0 6 5 2 1.95
+1 0 0 0 0 7 5 2 2.25
+1 0 0 0 0 8 5 2 2.55
+1 0 0 0 0 9 5 2 2.85
-"Time = 1.000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
-2.550000 2.5500000000000
-2.850000 2.8500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_x.yl b/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_x.yl
index 9ec3cd5db..1642abfd5 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_x.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_x.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x y (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 0.15
+0 0 0 0 0 0 1 2 0.15
+0 0 0 0 0 0 2 2 0.15
+0 0 0 0 0 0 3 2 0.15
+0 0 0 0 0 0 4 2 0.15
+0 0 0 0 0 0 5 2 0.15
+0 0 0 0 0 0 6 2 0.15
+0 0 0 0 0 0 7 2 0.15
+0 0 0 0 0 0 8 2 0.15
+0 0 0 0 0 0 9 2 0.15
+0 0 0 0 0 0 10 2 0.15
-"Time = 0.000000
--1.350000 0.1500000000000
--1.050000 0.1500000000000
--0.750000 0.1500000000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 0.15
+1 0 0 0 0 0 1 2 0.15
+1 0 0 0 0 0 2 2 0.15
+1 0 0 0 0 0 3 2 0.15
+1 0 0 0 0 0 4 2 0.15
+1 0 0 0 0 0 5 2 0.15
+1 0 0 0 0 0 6 2 0.15
+1 0 0 0 0 0 7 2 0.15
+1 0 0 0 0 0 8 2 0.15
+1 0 0 0 0 0 9 2 0.15
+1 0 0 0 0 0 10 2 0.15
-"Time = 1.000000
--1.350000 0.1500000000000
--1.050000 0.1500000000000
--0.750000 0.1500000000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_x.zl b/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_x.zl
index bb20362ce..e2661fc35 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_x.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_x.zl
@@ -1,26 +1,36 @@
+# GRID::cart3d_x z (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 0.15
+0 0 0 0 0 0 5 1 0.15
+0 0 0 0 0 0 5 2 0.15
+0 0 0 0 0 0 5 3 0.15
+0 0 0 0 0 0 5 4 0.15
+0 0 0 0 0 0 5 5 0.15
+0 0 0 0 0 0 5 6 0.15
+0 0 0 0 0 0 5 7 0.15
+0 0 0 0 0 0 5 8 0.15
+0 0 0 0 0 0 5 9 0.15
+0 0 0 0 0 0 5 10 0.15
+0 0 0 0 0 0 5 11 0.15
-"Time = 0.000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
-1.950000 0.1500000000000
-2.250000 0.1500000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 0.15
+1 0 0 0 0 0 5 1 0.15
+1 0 0 0 0 0 5 2 0.15
+1 0 0 0 0 0 5 3 0.15
+1 0 0 0 0 0 5 4 0.15
+1 0 0 0 0 0 5 5 0.15
+1 0 0 0 0 0 5 6 0.15
+1 0 0 0 0 0 5 7 0.15
+1 0 0 0 0 0 5 8 0.15
+1 0 0 0 0 0 5 9 0.15
+1 0 0 0 0 0 5 10 0.15
+1 0 0 0 0 0 5 11 0.15
-"Time = 1.000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
-1.950000 0.1500000000000
-2.250000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_y.xl b/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_y.xl
index f1d268a16..8cea96e96 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_y.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_y.xl
@@ -1,26 +1,32 @@
+# GRID::cart3d_y x (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 0.15
+0 0 0 0 0 1 5 2 0.15
+0 0 0 0 0 2 5 2 0.15
+0 0 0 0 0 3 5 2 0.15
+0 0 0 0 0 4 5 2 0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 6 5 2 0.15
+0 0 0 0 0 7 5 2 0.15
+0 0 0 0 0 8 5 2 0.15
+0 0 0 0 0 9 5 2 0.15
-"Time = 0.000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
-2.850000 -0.1500000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 0.15
+1 0 0 0 0 1 5 2 0.15
+1 0 0 0 0 2 5 2 0.15
+1 0 0 0 0 3 5 2 0.15
+1 0 0 0 0 4 5 2 0.15
+1 0 0 0 0 5 5 2 0.15
+1 0 0 0 0 6 5 2 0.15
+1 0 0 0 0 7 5 2 0.15
+1 0 0 0 0 8 5 2 0.15
+1 0 0 0 0 9 5 2 0.15
-"Time = 1.000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
-2.850000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_y.yl b/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_y.yl
index 33b36d0af..6b4310c3e 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_y.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_y.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y y (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 -1.35
+0 0 0 0 0 0 1 2 -1.05
+0 0 0 0 0 0 2 2 -0.75
+0 0 0 0 0 0 3 2 -0.45
+0 0 0 0 0 0 4 2 -0.15
+0 0 0 0 0 0 5 2 0.15
+0 0 0 0 0 0 6 2 0.45
+0 0 0 0 0 0 7 2 0.75
+0 0 0 0 0 0 8 2 1.05
+0 0 0 0 0 0 9 2 1.35
+0 0 0 0 0 0 10 2 1.65
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 -1.35
+1 0 0 0 0 0 1 2 -1.05
+1 0 0 0 0 0 2 2 -0.75
+1 0 0 0 0 0 3 2 -0.45
+1 0 0 0 0 0 4 2 -0.15
+1 0 0 0 0 0 5 2 0.15
+1 0 0 0 0 0 6 2 0.45
+1 0 0 0 0 0 7 2 0.75
+1 0 0 0 0 0 8 2 1.05
+1 0 0 0 0 0 9 2 1.35
+1 0 0 0 0 0 10 2 1.65
-"Time = 1.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_y.zl b/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_y.zl
index e908f2032..5da9cd484 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_y.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_y.zl
@@ -1,26 +1,36 @@
+# GRID::cart3d_y z (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 0.15
+0 0 0 0 0 0 5 1 0.15
+0 0 0 0 0 0 5 2 0.15
+0 0 0 0 0 0 5 3 0.15
+0 0 0 0 0 0 5 4 0.15
+0 0 0 0 0 0 5 5 0.15
+0 0 0 0 0 0 5 6 0.15
+0 0 0 0 0 0 5 7 0.15
+0 0 0 0 0 0 5 8 0.15
+0 0 0 0 0 0 5 9 0.15
+0 0 0 0 0 0 5 10 0.15
+0 0 0 0 0 0 5 11 0.15
-"Time = 0.000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 0.15
+1 0 0 0 0 0 5 1 0.15
+1 0 0 0 0 0 5 2 0.15
+1 0 0 0 0 0 5 3 0.15
+1 0 0 0 0 0 5 4 0.15
+1 0 0 0 0 0 5 5 0.15
+1 0 0 0 0 0 5 6 0.15
+1 0 0 0 0 0 5 7 0.15
+1 0 0 0 0 0 5 8 0.15
+1 0 0 0 0 0 5 9 0.15
+1 0 0 0 0 0 5 10 0.15
+1 0 0 0 0 0 5 11 0.15
-"Time = 1.000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_z.xl b/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_z.xl
index f1d268a16..bec2ffe34 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_z.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_z.xl
@@ -1,26 +1,32 @@
+# GRID::cart3d_z x (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 0.15
+0 0 0 0 0 1 5 2 0.15
+0 0 0 0 0 2 5 2 0.15
+0 0 0 0 0 3 5 2 0.15
+0 0 0 0 0 4 5 2 0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 6 5 2 0.15
+0 0 0 0 0 7 5 2 0.15
+0 0 0 0 0 8 5 2 0.15
+0 0 0 0 0 9 5 2 0.15
-"Time = 0.000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
-2.850000 -0.1500000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 0.15
+1 0 0 0 0 1 5 2 0.15
+1 0 0 0 0 2 5 2 0.15
+1 0 0 0 0 3 5 2 0.15
+1 0 0 0 0 4 5 2 0.15
+1 0 0 0 0 5 5 2 0.15
+1 0 0 0 0 6 5 2 0.15
+1 0 0 0 0 7 5 2 0.15
+1 0 0 0 0 8 5 2 0.15
+1 0 0 0 0 9 5 2 0.15
-"Time = 1.000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
-2.850000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_z.yl b/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_z.yl
index 52b13d0ae..639acf623 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_z.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_z.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z y (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 0.15
+0 0 0 0 0 0 1 2 0.15
+0 0 0 0 0 0 2 2 0.15
+0 0 0 0 0 0 3 2 0.15
+0 0 0 0 0 0 4 2 0.15
+0 0 0 0 0 0 5 2 0.15
+0 0 0 0 0 0 6 2 0.15
+0 0 0 0 0 0 7 2 0.15
+0 0 0 0 0 0 8 2 0.15
+0 0 0 0 0 0 9 2 0.15
+0 0 0 0 0 0 10 2 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 0.15
+1 0 0 0 0 0 1 2 0.15
+1 0 0 0 0 0 2 2 0.15
+1 0 0 0 0 0 3 2 0.15
+1 0 0 0 0 0 4 2 0.15
+1 0 0 0 0 0 5 2 0.15
+1 0 0 0 0 0 6 2 0.15
+1 0 0 0 0 0 7 2 0.15
+1 0 0 0 0 0 8 2 0.15
+1 0 0 0 0 0 9 2 0.15
+1 0 0 0 0 0 10 2 0.15
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_z.zl b/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_z.zl
index 20ba9f007..dab545e8d 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_z.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/cart3d_z.zl
@@ -1,26 +1,36 @@
+# GRID::cart3d_z z (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 -0.45
+0 0 0 0 0 0 5 1 -0.15
+0 0 0 0 0 0 5 2 0.15
+0 0 0 0 0 0 5 3 0.45
+0 0 0 0 0 0 5 4 0.75
+0 0 0 0 0 0 5 5 1.05
+0 0 0 0 0 0 5 6 1.35
+0 0 0 0 0 0 5 7 1.65
+0 0 0 0 0 0 5 8 1.95
+0 0 0 0 0 0 5 9 2.25
+0 0 0 0 0 0 5 10 2.55
+0 0 0 0 0 0 5 11 2.85
-"Time = 0.000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 -0.45
+1 0 0 0 0 0 5 1 -0.15
+1 0 0 0 0 0 5 2 0.15
+1 0 0 0 0 0 5 3 0.45
+1 0 0 0 0 0 5 4 0.75
+1 0 0 0 0 0 5 5 1.05
+1 0 0 0 0 0 5 6 1.35
+1 0 0 0 0 0 5 7 1.65
+1 0 0 0 0 0 5 8 1.95
+1 0 0 0 0 0 5 9 2.25
+1 0 0 0 0 0 5 10 2.55
+1 0 0 0 0 0 5 11 2.85
-"Time = 1.000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/fxx.xl b/CarpetAttic/Cart3dTest/test/axial-xz/fxx.xl
index 1797dcb3a..f9bfe57cd 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/fxx.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/fxx.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::fxx x (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 41000502
+0 0 0 0 0 1 5 2 41010502
+0 0 0 0 0 2 5 2 41020502
+0 0 0 0 0 3 5 2 41030502
+0 0 0 0 0 4 5 2 41040502
+0 0 0 0 0 5 5 2 41050502
+0 0 0 0 0 6 5 2 41060502
+0 0 0 0 0 7 5 2 41070502
+0 0 0 0 0 8 5 2 41080502
+0 0 0 0 0 9 5 2 41090502
-"Time = 0.000000
-0.150000 41000401.0000000000000
-0.450000 41010401.0000000000000
-0.750000 41020401.0000000000000
-1.050000 41030401.0000000000000
-1.350000 41040401.0000000000000
-1.650000 41050401.0000000000000
-1.950000 41060401.0000000000000
-2.250000 41070401.0000000000000
-2.550000 41080401.0000000000000
-2.850000 41090401.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 41000502
+1 0 0 0 0 1 5 2 41010502
+1 0 0 0 0 2 5 2 41020502
+1 0 0 0 0 3 5 2 41030502
+1 0 0 0 0 4 5 2 41040502
+1 0 0 0 0 5 5 2 41050502
+1 0 0 0 0 6 5 2 41060502
+1 0 0 0 0 7 5 2 41070502
+1 0 0 0 0 8 5 2 41080502
+1 0 0 0 0 9 5 2 41090502
-"Time = 1.000000
-0.150000 49000400.0000000000000
-0.450000 49000401.0000000000000
-0.750000 49000402.0000000000000
-1.050000 49000403.0000000000000
-1.350000 49000404.0000000000000
-1.650000 49000405.0000000000000
-1.950000 49000406.0000000000000
-2.250000 49000407.0000000000000
-2.550000 49000408.0000000000000
-2.850000 49000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/fxx.yl b/CarpetAttic/Cart3dTest/test/axial-xz/fxx.yl
index d5ce76e01..45b813896 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/fxx.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/fxx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx y (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 41000002
+0 0 0 0 0 0 1 2 41000102
+0 0 0 0 0 0 2 2 41000202
+0 0 0 0 0 0 3 2 41000302
+0 0 0 0 0 0 4 2 41000402
+0 0 0 0 0 0 5 2 41000502
+0 0 0 0 0 0 6 2 41000602
+0 0 0 0 0 0 7 2 41000702
+0 0 0 0 0 0 8 2 41000802
+0 0 0 0 0 0 9 2 41000902
+0 0 0 0 0 0 10 2 41001002
-"Time = 0.000000
--1.350000 41000001.0000000000000
--1.050000 41000101.0000000000000
--0.750000 41000201.0000000000000
--0.450000 41000301.0000000000000
--0.150000 41000401.0000000000000
-0.150000 41000501.0000000000000
-0.450000 41000601.0000000000000
-0.750000 41000701.0000000000000
-1.050000 41000801.0000000000000
-1.350000 41000901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 41000002
+1 0 0 0 0 0 1 2 41000102
+1 0 0 0 0 0 2 2 41000202
+1 0 0 0 0 0 3 2 41000302
+1 0 0 0 0 0 4 2 41000402
+1 0 0 0 0 0 5 2 41000502
+1 0 0 0 0 0 6 2 41000602
+1 0 0 0 0 0 7 2 41000702
+1 0 0 0 0 0 8 2 41000802
+1 0 0 0 0 0 9 2 41000902
+1 0 0 0 0 0 10 2 41001002
-"Time = 1.000000
--1.350000 49000000.0000000000000
--1.050000 49000100.0000000000000
--0.750000 49000200.0000000000000
--0.450000 49000300.0000000000000
--0.150000 49000400.0000000000000
-0.150000 49000500.0000000000000
-0.450000 49000600.0000000000000
-0.750000 49000700.0000000000000
-1.050000 49000800.0000000000000
-1.350000 49000900.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/fxx.zl b/CarpetAttic/Cart3dTest/test/axial-xz/fxx.zl
index 9ae4143bf..458730450 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/fxx.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/fxx.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::fxx z (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 41000500
+0 0 0 0 0 0 5 1 41000501
+0 0 0 0 0 0 5 2 41000502
+0 0 0 0 0 0 5 3 41000503
+0 0 0 0 0 0 5 4 41000504
+0 0 0 0 0 0 5 5 41000505
+0 0 0 0 0 0 5 6 41000506
+0 0 0 0 0 0 5 7 41000507
+0 0 0 0 0 0 5 8 41000508
+0 0 0 0 0 0 5 9 41000509
+0 0 0 0 0 0 5 10 41000510
+0 0 0 0 0 0 5 11 41000511
-"Time = 0.000000
--0.450000 41000400.0000000000000
--0.150000 41000401.0000000000000
-0.150000 41000402.0000000000000
-0.450000 41000403.0000000000000
-0.750000 41000404.0000000000000
-1.050000 41000405.0000000000000
-1.350000 41000406.0000000000000
-1.650000 41000407.0000000000000
-1.950000 41000408.0000000000000
-2.250000 41000409.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 49010502
+1 0 0 0 0 0 5 1 49000502
+1 0 0 0 0 0 5 2 41000502
+1 0 0 0 0 0 5 3 41000503
+1 0 0 0 0 0 5 4 41000504
+1 0 0 0 0 0 5 5 41000505
+1 0 0 0 0 0 5 6 41000506
+1 0 0 0 0 0 5 7 41000507
+1 0 0 0 0 0 5 8 41000508
+1 0 0 0 0 0 5 9 41000509
+1 0 0 0 0 0 5 10 41000510
+1 0 0 0 0 0 5 11 41000511
-"Time = 1.000000
--0.450000 49010400.0000000000000
--0.150000 49000400.0000000000000
-0.150000 41000402.0000000000000
-0.450000 41000403.0000000000000
-0.750000 41000404.0000000000000
-1.050000 41000405.0000000000000
-1.350000 41000406.0000000000000
-1.650000 41000407.0000000000000
-1.950000 41000408.0000000000000
-2.250000 41000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/fxy.xl b/CarpetAttic/Cart3dTest/test/axial-xz/fxy.xl
index 8f126f211..b2cd9690f 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/fxy.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/fxy.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::fxy x (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 42000502
+0 0 0 0 0 1 5 2 42010502
+0 0 0 0 0 2 5 2 42020502
+0 0 0 0 0 3 5 2 42030502
+0 0 0 0 0 4 5 2 42040502
+0 0 0 0 0 5 5 2 42050502
+0 0 0 0 0 6 5 2 42060502
+0 0 0 0 0 7 5 2 42070502
+0 0 0 0 0 8 5 2 42080502
+0 0 0 0 0 9 5 2 42090502
-"Time = 0.000000
-0.150000 42000401.0000000000000
-0.450000 42010401.0000000000000
-0.750000 42020401.0000000000000
-1.050000 42030401.0000000000000
-1.350000 42040401.0000000000000
-1.650000 42050401.0000000000000
-1.950000 42060401.0000000000000
-2.250000 42070401.0000000000000
-2.550000 42080401.0000000000000
-2.850000 42090401.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 42000502
+1 0 0 0 0 1 5 2 42010502
+1 0 0 0 0 2 5 2 42020502
+1 0 0 0 0 3 5 2 42030502
+1 0 0 0 0 4 5 2 42040502
+1 0 0 0 0 5 5 2 42050502
+1 0 0 0 0 6 5 2 42060502
+1 0 0 0 0 7 5 2 42070502
+1 0 0 0 0 8 5 2 42080502
+1 0 0 0 0 9 5 2 42090502
-"Time = 1.000000
-0.150000 48000400.0000000000000
-0.450000 48000401.0000000000000
-0.750000 48000402.0000000000000
-1.050000 48000403.0000000000000
-1.350000 48000404.0000000000000
-1.650000 48000405.0000000000000
-1.950000 48000406.0000000000000
-2.250000 48000407.0000000000000
-2.550000 48000408.0000000000000
-2.850000 48000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/fxy.yl b/CarpetAttic/Cart3dTest/test/axial-xz/fxy.yl
index 06e8e24b6..4e5105db2 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/fxy.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/fxy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy y (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 42000002
+0 0 0 0 0 0 1 2 42000102
+0 0 0 0 0 0 2 2 42000202
+0 0 0 0 0 0 3 2 42000302
+0 0 0 0 0 0 4 2 42000402
+0 0 0 0 0 0 5 2 42000502
+0 0 0 0 0 0 6 2 42000602
+0 0 0 0 0 0 7 2 42000702
+0 0 0 0 0 0 8 2 42000802
+0 0 0 0 0 0 9 2 42000902
+0 0 0 0 0 0 10 2 42001002
-"Time = 0.000000
--1.350000 42000001.0000000000000
--1.050000 42000101.0000000000000
--0.750000 42000201.0000000000000
--0.450000 42000301.0000000000000
--0.150000 42000401.0000000000000
-0.150000 42000501.0000000000000
-0.450000 42000601.0000000000000
-0.750000 42000701.0000000000000
-1.050000 42000801.0000000000000
-1.350000 42000901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 42000002
+1 0 0 0 0 0 1 2 42000102
+1 0 0 0 0 0 2 2 42000202
+1 0 0 0 0 0 3 2 42000302
+1 0 0 0 0 0 4 2 42000402
+1 0 0 0 0 0 5 2 42000502
+1 0 0 0 0 0 6 2 42000602
+1 0 0 0 0 0 7 2 42000702
+1 0 0 0 0 0 8 2 42000802
+1 0 0 0 0 0 9 2 42000902
+1 0 0 0 0 0 10 2 42001002
-"Time = 1.000000
--1.350000 48000000.0000000000000
--1.050000 48000100.0000000000000
--0.750000 48000200.0000000000000
--0.450000 48000300.0000000000000
--0.150000 48000400.0000000000000
-0.150000 48000500.0000000000000
-0.450000 48000600.0000000000000
-0.750000 48000700.0000000000000
-1.050000 48000800.0000000000000
-1.350000 48000900.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/fxy.zl b/CarpetAttic/Cart3dTest/test/axial-xz/fxy.zl
index b648269f5..af06334bb 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/fxy.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/fxy.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::fxy z (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 42000500
+0 0 0 0 0 0 5 1 42000501
+0 0 0 0 0 0 5 2 42000502
+0 0 0 0 0 0 5 3 42000503
+0 0 0 0 0 0 5 4 42000504
+0 0 0 0 0 0 5 5 42000505
+0 0 0 0 0 0 5 6 42000506
+0 0 0 0 0 0 5 7 42000507
+0 0 0 0 0 0 5 8 42000508
+0 0 0 0 0 0 5 9 42000509
+0 0 0 0 0 0 5 10 42000510
+0 0 0 0 0 0 5 11 42000511
-"Time = 0.000000
--0.450000 42000400.0000000000000
--0.150000 42000401.0000000000000
-0.150000 42000402.0000000000000
-0.450000 42000403.0000000000000
-0.750000 42000404.0000000000000
-1.050000 42000405.0000000000000
-1.350000 42000406.0000000000000
-1.650000 42000407.0000000000000
-1.950000 42000408.0000000000000
-2.250000 42000409.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 48010502
+1 0 0 0 0 0 5 1 48000502
+1 0 0 0 0 0 5 2 42000502
+1 0 0 0 0 0 5 3 42000503
+1 0 0 0 0 0 5 4 42000504
+1 0 0 0 0 0 5 5 42000505
+1 0 0 0 0 0 5 6 42000506
+1 0 0 0 0 0 5 7 42000507
+1 0 0 0 0 0 5 8 42000508
+1 0 0 0 0 0 5 9 42000509
+1 0 0 0 0 0 5 10 42000510
+1 0 0 0 0 0 5 11 42000511
-"Time = 1.000000
--0.450000 48010400.0000000000000
--0.150000 48000400.0000000000000
-0.150000 42000402.0000000000000
-0.450000 42000403.0000000000000
-0.750000 42000404.0000000000000
-1.050000 42000405.0000000000000
-1.350000 42000406.0000000000000
-1.650000 42000407.0000000000000
-1.950000 42000408.0000000000000
-2.250000 42000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/fxz.xl b/CarpetAttic/Cart3dTest/test/axial-xz/fxz.xl
index 1dc96093c..1f3d82760 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/fxz.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/fxz.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::fxz x (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 43000502
+0 0 0 0 0 1 5 2 43010502
+0 0 0 0 0 2 5 2 43020502
+0 0 0 0 0 3 5 2 43030502
+0 0 0 0 0 4 5 2 43040502
+0 0 0 0 0 5 5 2 43050502
+0 0 0 0 0 6 5 2 43060502
+0 0 0 0 0 7 5 2 43070502
+0 0 0 0 0 8 5 2 43080502
+0 0 0 0 0 9 5 2 43090502
-"Time = 0.000000
-0.150000 43000401.0000000000000
-0.450000 43010401.0000000000000
-0.750000 43020401.0000000000000
-1.050000 43030401.0000000000000
-1.350000 43040401.0000000000000
-1.650000 43050401.0000000000000
-1.950000 43060401.0000000000000
-2.250000 43070401.0000000000000
-2.550000 43080401.0000000000000
-2.850000 43090401.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 43000502
+1 0 0 0 0 1 5 2 43010502
+1 0 0 0 0 2 5 2 43020502
+1 0 0 0 0 3 5 2 43030502
+1 0 0 0 0 4 5 2 43040502
+1 0 0 0 0 5 5 2 43050502
+1 0 0 0 0 6 5 2 43060502
+1 0 0 0 0 7 5 2 43070502
+1 0 0 0 0 8 5 2 43080502
+1 0 0 0 0 9 5 2 43090502
-"Time = 1.000000
-0.150000 -47000400.0000000000000
-0.450000 -47000401.0000000000000
-0.750000 -47000402.0000000000000
-1.050000 -47000403.0000000000000
-1.350000 -47000404.0000000000000
-1.650000 -47000405.0000000000000
-1.950000 -47000406.0000000000000
-2.250000 -47000407.0000000000000
-2.550000 -47000408.0000000000000
-2.850000 -47000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/fxz.yl b/CarpetAttic/Cart3dTest/test/axial-xz/fxz.yl
index 1b4cf2bc4..522064f1d 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/fxz.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/fxz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz y (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 43000002
+0 0 0 0 0 0 1 2 43000102
+0 0 0 0 0 0 2 2 43000202
+0 0 0 0 0 0 3 2 43000302
+0 0 0 0 0 0 4 2 43000402
+0 0 0 0 0 0 5 2 43000502
+0 0 0 0 0 0 6 2 43000602
+0 0 0 0 0 0 7 2 43000702
+0 0 0 0 0 0 8 2 43000802
+0 0 0 0 0 0 9 2 43000902
+0 0 0 0 0 0 10 2 43001002
-"Time = 0.000000
--1.350000 43000001.0000000000000
--1.050000 43000101.0000000000000
--0.750000 43000201.0000000000000
--0.450000 43000301.0000000000000
--0.150000 43000401.0000000000000
-0.150000 43000501.0000000000000
-0.450000 43000601.0000000000000
-0.750000 43000701.0000000000000
-1.050000 43000801.0000000000000
-1.350000 43000901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 43000002
+1 0 0 0 0 0 1 2 43000102
+1 0 0 0 0 0 2 2 43000202
+1 0 0 0 0 0 3 2 43000302
+1 0 0 0 0 0 4 2 43000402
+1 0 0 0 0 0 5 2 43000502
+1 0 0 0 0 0 6 2 43000602
+1 0 0 0 0 0 7 2 43000702
+1 0 0 0 0 0 8 2 43000802
+1 0 0 0 0 0 9 2 43000902
+1 0 0 0 0 0 10 2 43001002
-"Time = 1.000000
--1.350000 -47000000.0000000000000
--1.050000 -47000100.0000000000000
--0.750000 -47000200.0000000000000
--0.450000 -47000300.0000000000000
--0.150000 -47000400.0000000000000
-0.150000 -47000500.0000000000000
-0.450000 -47000600.0000000000000
-0.750000 -47000700.0000000000000
-1.050000 -47000800.0000000000000
-1.350000 -47000900.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/fxz.zl b/CarpetAttic/Cart3dTest/test/axial-xz/fxz.zl
index bcd612a63..f214d36d8 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/fxz.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/fxz.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::fxz z (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 43000500
+0 0 0 0 0 0 5 1 43000501
+0 0 0 0 0 0 5 2 43000502
+0 0 0 0 0 0 5 3 43000503
+0 0 0 0 0 0 5 4 43000504
+0 0 0 0 0 0 5 5 43000505
+0 0 0 0 0 0 5 6 43000506
+0 0 0 0 0 0 5 7 43000507
+0 0 0 0 0 0 5 8 43000508
+0 0 0 0 0 0 5 9 43000509
+0 0 0 0 0 0 5 10 43000510
+0 0 0 0 0 0 5 11 43000511
-"Time = 0.000000
--0.450000 43000400.0000000000000
--0.150000 43000401.0000000000000
-0.150000 43000402.0000000000000
-0.450000 43000403.0000000000000
-0.750000 43000404.0000000000000
-1.050000 43000405.0000000000000
-1.350000 43000406.0000000000000
-1.650000 43000407.0000000000000
-1.950000 43000408.0000000000000
-2.250000 43000409.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 -47010502
+1 0 0 0 0 0 5 1 -47000502
+1 0 0 0 0 0 5 2 43000502
+1 0 0 0 0 0 5 3 43000503
+1 0 0 0 0 0 5 4 43000504
+1 0 0 0 0 0 5 5 43000505
+1 0 0 0 0 0 5 6 43000506
+1 0 0 0 0 0 5 7 43000507
+1 0 0 0 0 0 5 8 43000508
+1 0 0 0 0 0 5 9 43000509
+1 0 0 0 0 0 5 10 43000510
+1 0 0 0 0 0 5 11 43000511
-"Time = 1.000000
--0.450000 -47010400.0000000000000
--0.150000 -47000400.0000000000000
-0.150000 43000402.0000000000000
-0.450000 43000403.0000000000000
-0.750000 43000404.0000000000000
-1.050000 43000405.0000000000000
-1.350000 43000406.0000000000000
-1.650000 43000407.0000000000000
-1.950000 43000408.0000000000000
-2.250000 43000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/fyx.xl b/CarpetAttic/Cart3dTest/test/axial-xz/fyx.xl
index ae6fd69da..55832bf88 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/fyx.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/fyx.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::fyx x (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 44000502
+0 0 0 0 0 1 5 2 44010502
+0 0 0 0 0 2 5 2 44020502
+0 0 0 0 0 3 5 2 44030502
+0 0 0 0 0 4 5 2 44040502
+0 0 0 0 0 5 5 2 44050502
+0 0 0 0 0 6 5 2 44060502
+0 0 0 0 0 7 5 2 44070502
+0 0 0 0 0 8 5 2 44080502
+0 0 0 0 0 9 5 2 44090502
-"Time = 0.000000
-0.150000 44000401.0000000000000
-0.450000 44010401.0000000000000
-0.750000 44020401.0000000000000
-1.050000 44030401.0000000000000
-1.350000 44040401.0000000000000
-1.650000 44050401.0000000000000
-1.950000 44060401.0000000000000
-2.250000 44070401.0000000000000
-2.550000 44080401.0000000000000
-2.850000 44090401.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 44000502
+1 0 0 0 0 1 5 2 44010502
+1 0 0 0 0 2 5 2 44020502
+1 0 0 0 0 3 5 2 44030502
+1 0 0 0 0 4 5 2 44040502
+1 0 0 0 0 5 5 2 44050502
+1 0 0 0 0 6 5 2 44060502
+1 0 0 0 0 7 5 2 44070502
+1 0 0 0 0 8 5 2 44080502
+1 0 0 0 0 9 5 2 44090502
-"Time = 1.000000
-0.150000 46000400.0000000000000
-0.450000 46000401.0000000000000
-0.750000 46000402.0000000000000
-1.050000 46000403.0000000000000
-1.350000 46000404.0000000000000
-1.650000 46000405.0000000000000
-1.950000 46000406.0000000000000
-2.250000 46000407.0000000000000
-2.550000 46000408.0000000000000
-2.850000 46000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/fyx.yl b/CarpetAttic/Cart3dTest/test/axial-xz/fyx.yl
index 7fc8d7d4e..a570be798 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/fyx.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/fyx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx y (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 44000002
+0 0 0 0 0 0 1 2 44000102
+0 0 0 0 0 0 2 2 44000202
+0 0 0 0 0 0 3 2 44000302
+0 0 0 0 0 0 4 2 44000402
+0 0 0 0 0 0 5 2 44000502
+0 0 0 0 0 0 6 2 44000602
+0 0 0 0 0 0 7 2 44000702
+0 0 0 0 0 0 8 2 44000802
+0 0 0 0 0 0 9 2 44000902
+0 0 0 0 0 0 10 2 44001002
-"Time = 0.000000
--1.350000 44000001.0000000000000
--1.050000 44000101.0000000000000
--0.750000 44000201.0000000000000
--0.450000 44000301.0000000000000
--0.150000 44000401.0000000000000
-0.150000 44000501.0000000000000
-0.450000 44000601.0000000000000
-0.750000 44000701.0000000000000
-1.050000 44000801.0000000000000
-1.350000 44000901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 44000002
+1 0 0 0 0 0 1 2 44000102
+1 0 0 0 0 0 2 2 44000202
+1 0 0 0 0 0 3 2 44000302
+1 0 0 0 0 0 4 2 44000402
+1 0 0 0 0 0 5 2 44000502
+1 0 0 0 0 0 6 2 44000602
+1 0 0 0 0 0 7 2 44000702
+1 0 0 0 0 0 8 2 44000802
+1 0 0 0 0 0 9 2 44000902
+1 0 0 0 0 0 10 2 44001002
-"Time = 1.000000
--1.350000 46000000.0000000000000
--1.050000 46000100.0000000000000
--0.750000 46000200.0000000000000
--0.450000 46000300.0000000000000
--0.150000 46000400.0000000000000
-0.150000 46000500.0000000000000
-0.450000 46000600.0000000000000
-0.750000 46000700.0000000000000
-1.050000 46000800.0000000000000
-1.350000 46000900.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/fyx.zl b/CarpetAttic/Cart3dTest/test/axial-xz/fyx.zl
index cae303d0e..a200be5aa 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/fyx.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/fyx.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::fyx z (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 44000500
+0 0 0 0 0 0 5 1 44000501
+0 0 0 0 0 0 5 2 44000502
+0 0 0 0 0 0 5 3 44000503
+0 0 0 0 0 0 5 4 44000504
+0 0 0 0 0 0 5 5 44000505
+0 0 0 0 0 0 5 6 44000506
+0 0 0 0 0 0 5 7 44000507
+0 0 0 0 0 0 5 8 44000508
+0 0 0 0 0 0 5 9 44000509
+0 0 0 0 0 0 5 10 44000510
+0 0 0 0 0 0 5 11 44000511
-"Time = 0.000000
--0.450000 44000400.0000000000000
--0.150000 44000401.0000000000000
-0.150000 44000402.0000000000000
-0.450000 44000403.0000000000000
-0.750000 44000404.0000000000000
-1.050000 44000405.0000000000000
-1.350000 44000406.0000000000000
-1.650000 44000407.0000000000000
-1.950000 44000408.0000000000000
-2.250000 44000409.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 46010502
+1 0 0 0 0 0 5 1 46000502
+1 0 0 0 0 0 5 2 44000502
+1 0 0 0 0 0 5 3 44000503
+1 0 0 0 0 0 5 4 44000504
+1 0 0 0 0 0 5 5 44000505
+1 0 0 0 0 0 5 6 44000506
+1 0 0 0 0 0 5 7 44000507
+1 0 0 0 0 0 5 8 44000508
+1 0 0 0 0 0 5 9 44000509
+1 0 0 0 0 0 5 10 44000510
+1 0 0 0 0 0 5 11 44000511
-"Time = 1.000000
--0.450000 46010400.0000000000000
--0.150000 46000400.0000000000000
-0.150000 44000402.0000000000000
-0.450000 44000403.0000000000000
-0.750000 44000404.0000000000000
-1.050000 44000405.0000000000000
-1.350000 44000406.0000000000000
-1.650000 44000407.0000000000000
-1.950000 44000408.0000000000000
-2.250000 44000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/fyy.xl b/CarpetAttic/Cart3dTest/test/axial-xz/fyy.xl
index 9c01fa736..2927f5ae4 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/fyy.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/fyy.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::fyy x (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 45000502
+0 0 0 0 0 1 5 2 45010502
+0 0 0 0 0 2 5 2 45020502
+0 0 0 0 0 3 5 2 45030502
+0 0 0 0 0 4 5 2 45040502
+0 0 0 0 0 5 5 2 45050502
+0 0 0 0 0 6 5 2 45060502
+0 0 0 0 0 7 5 2 45070502
+0 0 0 0 0 8 5 2 45080502
+0 0 0 0 0 9 5 2 45090502
-"Time = 0.000000
-0.150000 45000401.0000000000000
-0.450000 45010401.0000000000000
-0.750000 45020401.0000000000000
-1.050000 45030401.0000000000000
-1.350000 45040401.0000000000000
-1.650000 45050401.0000000000000
-1.950000 45060401.0000000000000
-2.250000 45070401.0000000000000
-2.550000 45080401.0000000000000
-2.850000 45090401.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 45000502
+1 0 0 0 0 1 5 2 45010502
+1 0 0 0 0 2 5 2 45020502
+1 0 0 0 0 3 5 2 45030502
+1 0 0 0 0 4 5 2 45040502
+1 0 0 0 0 5 5 2 45050502
+1 0 0 0 0 6 5 2 45060502
+1 0 0 0 0 7 5 2 45070502
+1 0 0 0 0 8 5 2 45080502
+1 0 0 0 0 9 5 2 45090502
-"Time = 1.000000
-0.150000 45000400.0000000000000
-0.450000 45000401.0000000000000
-0.750000 45000402.0000000000000
-1.050000 45000403.0000000000000
-1.350000 45000404.0000000000000
-1.650000 45000405.0000000000000
-1.950000 45000406.0000000000000
-2.250000 45000407.0000000000000
-2.550000 45000408.0000000000000
-2.850000 45000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/fyy.yl b/CarpetAttic/Cart3dTest/test/axial-xz/fyy.yl
index 371afa017..480431e1a 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/fyy.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/fyy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy y (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 45000002
+0 0 0 0 0 0 1 2 45000102
+0 0 0 0 0 0 2 2 45000202
+0 0 0 0 0 0 3 2 45000302
+0 0 0 0 0 0 4 2 45000402
+0 0 0 0 0 0 5 2 45000502
+0 0 0 0 0 0 6 2 45000602
+0 0 0 0 0 0 7 2 45000702
+0 0 0 0 0 0 8 2 45000802
+0 0 0 0 0 0 9 2 45000902
+0 0 0 0 0 0 10 2 45001002
-"Time = 0.000000
--1.350000 45000001.0000000000000
--1.050000 45000101.0000000000000
--0.750000 45000201.0000000000000
--0.450000 45000301.0000000000000
--0.150000 45000401.0000000000000
-0.150000 45000501.0000000000000
-0.450000 45000601.0000000000000
-0.750000 45000701.0000000000000
-1.050000 45000801.0000000000000
-1.350000 45000901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 45000002
+1 0 0 0 0 0 1 2 45000102
+1 0 0 0 0 0 2 2 45000202
+1 0 0 0 0 0 3 2 45000302
+1 0 0 0 0 0 4 2 45000402
+1 0 0 0 0 0 5 2 45000502
+1 0 0 0 0 0 6 2 45000602
+1 0 0 0 0 0 7 2 45000702
+1 0 0 0 0 0 8 2 45000802
+1 0 0 0 0 0 9 2 45000902
+1 0 0 0 0 0 10 2 45001002
-"Time = 1.000000
--1.350000 45000000.0000000000000
--1.050000 45000100.0000000000000
--0.750000 45000200.0000000000000
--0.450000 45000300.0000000000000
--0.150000 45000400.0000000000000
-0.150000 45000500.0000000000000
-0.450000 45000600.0000000000000
-0.750000 45000700.0000000000000
-1.050000 45000800.0000000000000
-1.350000 45000900.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/fyy.zl b/CarpetAttic/Cart3dTest/test/axial-xz/fyy.zl
index 0612c3977..062209605 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/fyy.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/fyy.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::fyy z (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 45000500
+0 0 0 0 0 0 5 1 45000501
+0 0 0 0 0 0 5 2 45000502
+0 0 0 0 0 0 5 3 45000503
+0 0 0 0 0 0 5 4 45000504
+0 0 0 0 0 0 5 5 45000505
+0 0 0 0 0 0 5 6 45000506
+0 0 0 0 0 0 5 7 45000507
+0 0 0 0 0 0 5 8 45000508
+0 0 0 0 0 0 5 9 45000509
+0 0 0 0 0 0 5 10 45000510
+0 0 0 0 0 0 5 11 45000511
-"Time = 0.000000
--0.450000 45000400.0000000000000
--0.150000 45000401.0000000000000
-0.150000 45000402.0000000000000
-0.450000 45000403.0000000000000
-0.750000 45000404.0000000000000
-1.050000 45000405.0000000000000
-1.350000 45000406.0000000000000
-1.650000 45000407.0000000000000
-1.950000 45000408.0000000000000
-2.250000 45000409.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 45010502
+1 0 0 0 0 0 5 1 45000502
+1 0 0 0 0 0 5 2 45000502
+1 0 0 0 0 0 5 3 45000503
+1 0 0 0 0 0 5 4 45000504
+1 0 0 0 0 0 5 5 45000505
+1 0 0 0 0 0 5 6 45000506
+1 0 0 0 0 0 5 7 45000507
+1 0 0 0 0 0 5 8 45000508
+1 0 0 0 0 0 5 9 45000509
+1 0 0 0 0 0 5 10 45000510
+1 0 0 0 0 0 5 11 45000511
-"Time = 1.000000
--0.450000 45010400.0000000000000
--0.150000 45000400.0000000000000
-0.150000 45000402.0000000000000
-0.450000 45000403.0000000000000
-0.750000 45000404.0000000000000
-1.050000 45000405.0000000000000
-1.350000 45000406.0000000000000
-1.650000 45000407.0000000000000
-1.950000 45000408.0000000000000
-2.250000 45000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/fyz.xl b/CarpetAttic/Cart3dTest/test/axial-xz/fyz.xl
index d8d05be4e..6aacd7584 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/fyz.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/fyz.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::fyz x (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 46000502
+0 0 0 0 0 1 5 2 46010502
+0 0 0 0 0 2 5 2 46020502
+0 0 0 0 0 3 5 2 46030502
+0 0 0 0 0 4 5 2 46040502
+0 0 0 0 0 5 5 2 46050502
+0 0 0 0 0 6 5 2 46060502
+0 0 0 0 0 7 5 2 46070502
+0 0 0 0 0 8 5 2 46080502
+0 0 0 0 0 9 5 2 46090502
-"Time = 0.000000
-0.150000 46000401.0000000000000
-0.450000 46010401.0000000000000
-0.750000 46020401.0000000000000
-1.050000 46030401.0000000000000
-1.350000 46040401.0000000000000
-1.650000 46050401.0000000000000
-1.950000 46060401.0000000000000
-2.250000 46070401.0000000000000
-2.550000 46080401.0000000000000
-2.850000 46090401.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 46000502
+1 0 0 0 0 1 5 2 46010502
+1 0 0 0 0 2 5 2 46020502
+1 0 0 0 0 3 5 2 46030502
+1 0 0 0 0 4 5 2 46040502
+1 0 0 0 0 5 5 2 46050502
+1 0 0 0 0 6 5 2 46060502
+1 0 0 0 0 7 5 2 46070502
+1 0 0 0 0 8 5 2 46080502
+1 0 0 0 0 9 5 2 46090502
-"Time = 1.000000
-0.150000 -46010400.0000000000000
-0.450000 -46000400.0000000000000
-0.750000 -44000402.0000000000000
-1.050000 -44000403.0000000000000
-1.350000 -44000404.0000000000000
-1.650000 -44000405.0000000000000
-1.950000 -44000406.0000000000000
-2.250000 -44000407.0000000000000
-2.550000 -44000408.0000000000000
-2.850000 -44000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/fyz.yl b/CarpetAttic/Cart3dTest/test/axial-xz/fyz.yl
index 490c5bb5c..56a804d7a 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/fyz.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/fyz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz y (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 46000002
+0 0 0 0 0 0 1 2 46000102
+0 0 0 0 0 0 2 2 46000202
+0 0 0 0 0 0 3 2 46000302
+0 0 0 0 0 0 4 2 46000402
+0 0 0 0 0 0 5 2 46000502
+0 0 0 0 0 0 6 2 46000602
+0 0 0 0 0 0 7 2 46000702
+0 0 0 0 0 0 8 2 46000802
+0 0 0 0 0 0 9 2 46000902
+0 0 0 0 0 0 10 2 46001002
-"Time = 0.000000
--1.350000 46000001.0000000000000
--1.050000 46000101.0000000000000
--0.750000 46000201.0000000000000
--0.450000 46000301.0000000000000
--0.150000 46000401.0000000000000
-0.150000 46000501.0000000000000
-0.450000 46000601.0000000000000
-0.750000 46000701.0000000000000
-1.050000 46000801.0000000000000
-1.350000 46000901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 46000002
+1 0 0 0 0 0 1 2 46000102
+1 0 0 0 0 0 2 2 46000202
+1 0 0 0 0 0 3 2 46000302
+1 0 0 0 0 0 4 2 46000402
+1 0 0 0 0 0 5 2 46000502
+1 0 0 0 0 0 6 2 46000602
+1 0 0 0 0 0 7 2 46000702
+1 0 0 0 0 0 8 2 46000802
+1 0 0 0 0 0 9 2 46000902
+1 0 0 0 0 0 10 2 46001002
-"Time = 1.000000
--1.350000 -46010000.0000000000000
--1.050000 -46010100.0000000000000
--0.750000 -46010200.0000000000000
--0.450000 -46010300.0000000000000
--0.150000 -46010400.0000000000000
-0.150000 -46010500.0000000000000
-0.450000 -46010600.0000000000000
-0.750000 -46010700.0000000000000
-1.050000 -46010800.0000000000000
-1.350000 -46010900.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/fyz.zl b/CarpetAttic/Cart3dTest/test/axial-xz/fyz.zl
index 29c7edc77..ffdb95c2c 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/fyz.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/fyz.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::fyz z (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 46000500
+0 0 0 0 0 0 5 1 46000501
+0 0 0 0 0 0 5 2 46000502
+0 0 0 0 0 0 5 3 46000503
+0 0 0 0 0 0 5 4 46000504
+0 0 0 0 0 0 5 5 46000505
+0 0 0 0 0 0 5 6 46000506
+0 0 0 0 0 0 5 7 46000507
+0 0 0 0 0 0 5 8 46000508
+0 0 0 0 0 0 5 9 46000509
+0 0 0 0 0 0 5 10 46000510
+0 0 0 0 0 0 5 11 46000511
-"Time = 0.000000
--0.450000 46000400.0000000000000
--0.150000 46000401.0000000000000
-0.150000 46000402.0000000000000
-0.450000 46000403.0000000000000
-0.750000 46000404.0000000000000
-1.050000 46000405.0000000000000
-1.350000 46000406.0000000000000
-1.650000 46000407.0000000000000
-1.950000 46000408.0000000000000
-2.250000 46000409.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 -44010502
+1 0 0 0 0 0 5 1 -44000502
+1 0 0 0 0 0 5 2 46000502
+1 0 0 0 0 0 5 3 46000503
+1 0 0 0 0 0 5 4 46000504
+1 0 0 0 0 0 5 5 46000505
+1 0 0 0 0 0 5 6 46000506
+1 0 0 0 0 0 5 7 46000507
+1 0 0 0 0 0 5 8 46000508
+1 0 0 0 0 0 5 9 46000509
+1 0 0 0 0 0 5 10 46000510
+1 0 0 0 0 0 5 11 46000511
-"Time = 1.000000
--0.450000 -46010401.0000000000000
--0.150000 -46010400.0000000000000
-0.150000 46000402.0000000000000
-0.450000 46000403.0000000000000
-0.750000 46000404.0000000000000
-1.050000 46000405.0000000000000
-1.350000 46000406.0000000000000
-1.650000 46000407.0000000000000
-1.950000 46000408.0000000000000
-2.250000 46000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/fzx.xl b/CarpetAttic/Cart3dTest/test/axial-xz/fzx.xl
index 85e2844ce..288e65d3d 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/fzx.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/fzx.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::fzx x (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 47000502
+0 0 0 0 0 1 5 2 47010502
+0 0 0 0 0 2 5 2 47020502
+0 0 0 0 0 3 5 2 47030502
+0 0 0 0 0 4 5 2 47040502
+0 0 0 0 0 5 5 2 47050502
+0 0 0 0 0 6 5 2 47060502
+0 0 0 0 0 7 5 2 47070502
+0 0 0 0 0 8 5 2 47080502
+0 0 0 0 0 9 5 2 47090502
-"Time = 0.000000
-0.150000 47000401.0000000000000
-0.450000 47010401.0000000000000
-0.750000 47020401.0000000000000
-1.050000 47030401.0000000000000
-1.350000 47040401.0000000000000
-1.650000 47050401.0000000000000
-1.950000 47060401.0000000000000
-2.250000 47070401.0000000000000
-2.550000 47080401.0000000000000
-2.850000 47090401.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 47000502
+1 0 0 0 0 1 5 2 47010502
+1 0 0 0 0 2 5 2 47020502
+1 0 0 0 0 3 5 2 47030502
+1 0 0 0 0 4 5 2 47040502
+1 0 0 0 0 5 5 2 47050502
+1 0 0 0 0 6 5 2 47060502
+1 0 0 0 0 7 5 2 47070502
+1 0 0 0 0 8 5 2 47080502
+1 0 0 0 0 9 5 2 47090502
-"Time = 1.000000
-0.150000 47010400.0000000000000
-0.450000 47000400.0000000000000
-0.750000 -43000402.0000000000000
-1.050000 -43000403.0000000000000
-1.350000 -43000404.0000000000000
-1.650000 -43000405.0000000000000
-1.950000 -43000406.0000000000000
-2.250000 -43000407.0000000000000
-2.550000 -43000408.0000000000000
-2.850000 -43000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/fzx.yl b/CarpetAttic/Cart3dTest/test/axial-xz/fzx.yl
index bddbd27e2..f4836fa33 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/fzx.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/fzx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx y (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 47000002
+0 0 0 0 0 0 1 2 47000102
+0 0 0 0 0 0 2 2 47000202
+0 0 0 0 0 0 3 2 47000302
+0 0 0 0 0 0 4 2 47000402
+0 0 0 0 0 0 5 2 47000502
+0 0 0 0 0 0 6 2 47000602
+0 0 0 0 0 0 7 2 47000702
+0 0 0 0 0 0 8 2 47000802
+0 0 0 0 0 0 9 2 47000902
+0 0 0 0 0 0 10 2 47001002
-"Time = 0.000000
--1.350000 47000001.0000000000000
--1.050000 47000101.0000000000000
--0.750000 47000201.0000000000000
--0.450000 47000301.0000000000000
--0.150000 47000401.0000000000000
-0.150000 47000501.0000000000000
-0.450000 47000601.0000000000000
-0.750000 47000701.0000000000000
-1.050000 47000801.0000000000000
-1.350000 47000901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 47000002
+1 0 0 0 0 0 1 2 47000102
+1 0 0 0 0 0 2 2 47000202
+1 0 0 0 0 0 3 2 47000302
+1 0 0 0 0 0 4 2 47000402
+1 0 0 0 0 0 5 2 47000502
+1 0 0 0 0 0 6 2 47000602
+1 0 0 0 0 0 7 2 47000702
+1 0 0 0 0 0 8 2 47000802
+1 0 0 0 0 0 9 2 47000902
+1 0 0 0 0 0 10 2 47001002
-"Time = 1.000000
--1.350000 47010000.0000000000000
--1.050000 47010100.0000000000000
--0.750000 47010200.0000000000000
--0.450000 47010300.0000000000000
--0.150000 47010400.0000000000000
-0.150000 47010500.0000000000000
-0.450000 47010600.0000000000000
-0.750000 47010700.0000000000000
-1.050000 47010800.0000000000000
-1.350000 47010900.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/fzx.zl b/CarpetAttic/Cart3dTest/test/axial-xz/fzx.zl
index 7cc21ad86..da2d99144 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/fzx.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/fzx.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::fzx z (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 47000500
+0 0 0 0 0 0 5 1 47000501
+0 0 0 0 0 0 5 2 47000502
+0 0 0 0 0 0 5 3 47000503
+0 0 0 0 0 0 5 4 47000504
+0 0 0 0 0 0 5 5 47000505
+0 0 0 0 0 0 5 6 47000506
+0 0 0 0 0 0 5 7 47000507
+0 0 0 0 0 0 5 8 47000508
+0 0 0 0 0 0 5 9 47000509
+0 0 0 0 0 0 5 10 47000510
+0 0 0 0 0 0 5 11 47000511
-"Time = 0.000000
--0.450000 47000400.0000000000000
--0.150000 47000401.0000000000000
-0.150000 47000402.0000000000000
-0.450000 47000403.0000000000000
-0.750000 47000404.0000000000000
-1.050000 47000405.0000000000000
-1.350000 47000406.0000000000000
-1.650000 47000407.0000000000000
-1.950000 47000408.0000000000000
-2.250000 47000409.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 -43010502
+1 0 0 0 0 0 5 1 -43000502
+1 0 0 0 0 0 5 2 47000502
+1 0 0 0 0 0 5 3 47000503
+1 0 0 0 0 0 5 4 47000504
+1 0 0 0 0 0 5 5 47000505
+1 0 0 0 0 0 5 6 47000506
+1 0 0 0 0 0 5 7 47000507
+1 0 0 0 0 0 5 8 47000508
+1 0 0 0 0 0 5 9 47000509
+1 0 0 0 0 0 5 10 47000510
+1 0 0 0 0 0 5 11 47000511
-"Time = 1.000000
--0.450000 47010401.0000000000000
--0.150000 47010400.0000000000000
-0.150000 47000402.0000000000000
-0.450000 47000403.0000000000000
-0.750000 47000404.0000000000000
-1.050000 47000405.0000000000000
-1.350000 47000406.0000000000000
-1.650000 47000407.0000000000000
-1.950000 47000408.0000000000000
-2.250000 47000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/fzy.xl b/CarpetAttic/Cart3dTest/test/axial-xz/fzy.xl
index 52870d183..7a5297d8c 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/fzy.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/fzy.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::fzy x (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 48000502
+0 0 0 0 0 1 5 2 48010502
+0 0 0 0 0 2 5 2 48020502
+0 0 0 0 0 3 5 2 48030502
+0 0 0 0 0 4 5 2 48040502
+0 0 0 0 0 5 5 2 48050502
+0 0 0 0 0 6 5 2 48060502
+0 0 0 0 0 7 5 2 48070502
+0 0 0 0 0 8 5 2 48080502
+0 0 0 0 0 9 5 2 48090502
-"Time = 0.000000
-0.150000 48000401.0000000000000
-0.450000 48010401.0000000000000
-0.750000 48020401.0000000000000
-1.050000 48030401.0000000000000
-1.350000 48040401.0000000000000
-1.650000 48050401.0000000000000
-1.950000 48060401.0000000000000
-2.250000 48070401.0000000000000
-2.550000 48080401.0000000000000
-2.850000 48090401.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 48000502
+1 0 0 0 0 1 5 2 48010502
+1 0 0 0 0 2 5 2 48020502
+1 0 0 0 0 3 5 2 48030502
+1 0 0 0 0 4 5 2 48040502
+1 0 0 0 0 5 5 2 48050502
+1 0 0 0 0 6 5 2 48060502
+1 0 0 0 0 7 5 2 48070502
+1 0 0 0 0 8 5 2 48080502
+1 0 0 0 0 9 5 2 48090502
-"Time = 1.000000
-0.150000 -48010400.0000000000000
-0.450000 -48000400.0000000000000
-0.750000 -42000402.0000000000000
-1.050000 -42000403.0000000000000
-1.350000 -42000404.0000000000000
-1.650000 -42000405.0000000000000
-1.950000 -42000406.0000000000000
-2.250000 -42000407.0000000000000
-2.550000 -42000408.0000000000000
-2.850000 -42000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/fzy.yl b/CarpetAttic/Cart3dTest/test/axial-xz/fzy.yl
index 66a4456f7..8ae17d760 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/fzy.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/fzy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy y (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 48000002
+0 0 0 0 0 0 1 2 48000102
+0 0 0 0 0 0 2 2 48000202
+0 0 0 0 0 0 3 2 48000302
+0 0 0 0 0 0 4 2 48000402
+0 0 0 0 0 0 5 2 48000502
+0 0 0 0 0 0 6 2 48000602
+0 0 0 0 0 0 7 2 48000702
+0 0 0 0 0 0 8 2 48000802
+0 0 0 0 0 0 9 2 48000902
+0 0 0 0 0 0 10 2 48001002
-"Time = 0.000000
--1.350000 48000001.0000000000000
--1.050000 48000101.0000000000000
--0.750000 48000201.0000000000000
--0.450000 48000301.0000000000000
--0.150000 48000401.0000000000000
-0.150000 48000501.0000000000000
-0.450000 48000601.0000000000000
-0.750000 48000701.0000000000000
-1.050000 48000801.0000000000000
-1.350000 48000901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 48000002
+1 0 0 0 0 0 1 2 48000102
+1 0 0 0 0 0 2 2 48000202
+1 0 0 0 0 0 3 2 48000302
+1 0 0 0 0 0 4 2 48000402
+1 0 0 0 0 0 5 2 48000502
+1 0 0 0 0 0 6 2 48000602
+1 0 0 0 0 0 7 2 48000702
+1 0 0 0 0 0 8 2 48000802
+1 0 0 0 0 0 9 2 48000902
+1 0 0 0 0 0 10 2 48001002
-"Time = 1.000000
--1.350000 -48010000.0000000000000
--1.050000 -48010100.0000000000000
--0.750000 -48010200.0000000000000
--0.450000 -48010300.0000000000000
--0.150000 -48010400.0000000000000
-0.150000 -48010500.0000000000000
-0.450000 -48010600.0000000000000
-0.750000 -48010700.0000000000000
-1.050000 -48010800.0000000000000
-1.350000 -48010900.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/fzy.zl b/CarpetAttic/Cart3dTest/test/axial-xz/fzy.zl
index b446e3418..d62c5ddec 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/fzy.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/fzy.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::fzy z (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 48000500
+0 0 0 0 0 0 5 1 48000501
+0 0 0 0 0 0 5 2 48000502
+0 0 0 0 0 0 5 3 48000503
+0 0 0 0 0 0 5 4 48000504
+0 0 0 0 0 0 5 5 48000505
+0 0 0 0 0 0 5 6 48000506
+0 0 0 0 0 0 5 7 48000507
+0 0 0 0 0 0 5 8 48000508
+0 0 0 0 0 0 5 9 48000509
+0 0 0 0 0 0 5 10 48000510
+0 0 0 0 0 0 5 11 48000511
-"Time = 0.000000
--0.450000 48000400.0000000000000
--0.150000 48000401.0000000000000
-0.150000 48000402.0000000000000
-0.450000 48000403.0000000000000
-0.750000 48000404.0000000000000
-1.050000 48000405.0000000000000
-1.350000 48000406.0000000000000
-1.650000 48000407.0000000000000
-1.950000 48000408.0000000000000
-2.250000 48000409.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 -42010502
+1 0 0 0 0 0 5 1 -42000502
+1 0 0 0 0 0 5 2 48000502
+1 0 0 0 0 0 5 3 48000503
+1 0 0 0 0 0 5 4 48000504
+1 0 0 0 0 0 5 5 48000505
+1 0 0 0 0 0 5 6 48000506
+1 0 0 0 0 0 5 7 48000507
+1 0 0 0 0 0 5 8 48000508
+1 0 0 0 0 0 5 9 48000509
+1 0 0 0 0 0 5 10 48000510
+1 0 0 0 0 0 5 11 48000511
-"Time = 1.000000
--0.450000 -48010401.0000000000000
--0.150000 -48010400.0000000000000
-0.150000 48000402.0000000000000
-0.450000 48000403.0000000000000
-0.750000 48000404.0000000000000
-1.050000 48000405.0000000000000
-1.350000 48000406.0000000000000
-1.650000 48000407.0000000000000
-1.950000 48000408.0000000000000
-2.250000 48000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/fzz.xl b/CarpetAttic/Cart3dTest/test/axial-xz/fzz.xl
index a6980ff08..6eee591c2 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/fzz.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/fzz.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::fzz x (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 49000502
+0 0 0 0 0 1 5 2 49010502
+0 0 0 0 0 2 5 2 49020502
+0 0 0 0 0 3 5 2 49030502
+0 0 0 0 0 4 5 2 49040502
+0 0 0 0 0 5 5 2 49050502
+0 0 0 0 0 6 5 2 49060502
+0 0 0 0 0 7 5 2 49070502
+0 0 0 0 0 8 5 2 49080502
+0 0 0 0 0 9 5 2 49090502
-"Time = 0.000000
-0.150000 49000401.0000000000000
-0.450000 49010401.0000000000000
-0.750000 49020401.0000000000000
-1.050000 49030401.0000000000000
-1.350000 49040401.0000000000000
-1.650000 49050401.0000000000000
-1.950000 49060401.0000000000000
-2.250000 49070401.0000000000000
-2.550000 49080401.0000000000000
-2.850000 49090401.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 49000502
+1 0 0 0 0 1 5 2 49010502
+1 0 0 0 0 2 5 2 49020502
+1 0 0 0 0 3 5 2 49030502
+1 0 0 0 0 4 5 2 49040502
+1 0 0 0 0 5 5 2 49050502
+1 0 0 0 0 6 5 2 49060502
+1 0 0 0 0 7 5 2 49070502
+1 0 0 0 0 8 5 2 49080502
+1 0 0 0 0 9 5 2 49090502
-"Time = 1.000000
-0.150000 49010400.0000000000000
-0.450000 49000400.0000000000000
-0.750000 41000402.0000000000000
-1.050000 41000403.0000000000000
-1.350000 41000404.0000000000000
-1.650000 41000405.0000000000000
-1.950000 41000406.0000000000000
-2.250000 41000407.0000000000000
-2.550000 41000408.0000000000000
-2.850000 41000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/fzz.yl b/CarpetAttic/Cart3dTest/test/axial-xz/fzz.yl
index 40f41f2d5..5200c0bbb 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/fzz.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/fzz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz y (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 49000002
+0 0 0 0 0 0 1 2 49000102
+0 0 0 0 0 0 2 2 49000202
+0 0 0 0 0 0 3 2 49000302
+0 0 0 0 0 0 4 2 49000402
+0 0 0 0 0 0 5 2 49000502
+0 0 0 0 0 0 6 2 49000602
+0 0 0 0 0 0 7 2 49000702
+0 0 0 0 0 0 8 2 49000802
+0 0 0 0 0 0 9 2 49000902
+0 0 0 0 0 0 10 2 49001002
-"Time = 0.000000
--1.350000 49000001.0000000000000
--1.050000 49000101.0000000000000
--0.750000 49000201.0000000000000
--0.450000 49000301.0000000000000
--0.150000 49000401.0000000000000
-0.150000 49000501.0000000000000
-0.450000 49000601.0000000000000
-0.750000 49000701.0000000000000
-1.050000 49000801.0000000000000
-1.350000 49000901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 49000002
+1 0 0 0 0 0 1 2 49000102
+1 0 0 0 0 0 2 2 49000202
+1 0 0 0 0 0 3 2 49000302
+1 0 0 0 0 0 4 2 49000402
+1 0 0 0 0 0 5 2 49000502
+1 0 0 0 0 0 6 2 49000602
+1 0 0 0 0 0 7 2 49000702
+1 0 0 0 0 0 8 2 49000802
+1 0 0 0 0 0 9 2 49000902
+1 0 0 0 0 0 10 2 49001002
-"Time = 1.000000
--1.350000 49010000.0000000000000
--1.050000 49010100.0000000000000
--0.750000 49010200.0000000000000
--0.450000 49010300.0000000000000
--0.150000 49010400.0000000000000
-0.150000 49010500.0000000000000
-0.450000 49010600.0000000000000
-0.750000 49010700.0000000000000
-1.050000 49010800.0000000000000
-1.350000 49010900.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/fzz.zl b/CarpetAttic/Cart3dTest/test/axial-xz/fzz.zl
index 3195bf00b..c3e4724f8 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/fzz.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/fzz.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::fzz z (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 49000500
+0 0 0 0 0 0 5 1 49000501
+0 0 0 0 0 0 5 2 49000502
+0 0 0 0 0 0 5 3 49000503
+0 0 0 0 0 0 5 4 49000504
+0 0 0 0 0 0 5 5 49000505
+0 0 0 0 0 0 5 6 49000506
+0 0 0 0 0 0 5 7 49000507
+0 0 0 0 0 0 5 8 49000508
+0 0 0 0 0 0 5 9 49000509
+0 0 0 0 0 0 5 10 49000510
+0 0 0 0 0 0 5 11 49000511
-"Time = 0.000000
--0.450000 49000400.0000000000000
--0.150000 49000401.0000000000000
-0.150000 49000402.0000000000000
-0.450000 49000403.0000000000000
-0.750000 49000404.0000000000000
-1.050000 49000405.0000000000000
-1.350000 49000406.0000000000000
-1.650000 49000407.0000000000000
-1.950000 49000408.0000000000000
-2.250000 49000409.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 41010502
+1 0 0 0 0 0 5 1 41000502
+1 0 0 0 0 0 5 2 49000502
+1 0 0 0 0 0 5 3 49000503
+1 0 0 0 0 0 5 4 49000504
+1 0 0 0 0 0 5 5 49000505
+1 0 0 0 0 0 5 6 49000506
+1 0 0 0 0 0 5 7 49000507
+1 0 0 0 0 0 5 8 49000508
+1 0 0 0 0 0 5 9 49000509
+1 0 0 0 0 0 5 10 49000510
+1 0 0 0 0 0 5 11 49000511
-"Time = 1.000000
--0.450000 49010401.0000000000000
--0.150000 49010400.0000000000000
-0.150000 49000402.0000000000000
-0.450000 49000403.0000000000000
-0.750000 49000404.0000000000000
-1.050000 49000405.0000000000000
-1.350000 49000406.0000000000000
-1.650000 49000407.0000000000000
-1.950000 49000408.0000000000000
-2.250000 49000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/s.xl b/CarpetAttic/Cart3dTest/test/axial-xz/s.xl
index 863524b2c..7becd18f1 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/s.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/s.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::s x (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 1000502
+0 0 0 0 0 1 5 2 1010502
+0 0 0 0 0 2 5 2 1020502
+0 0 0 0 0 3 5 2 1030502
+0 0 0 0 0 4 5 2 1040502
+0 0 0 0 0 5 5 2 1050502
+0 0 0 0 0 6 5 2 1060502
+0 0 0 0 0 7 5 2 1070502
+0 0 0 0 0 8 5 2 1080502
+0 0 0 0 0 9 5 2 1090502
-"Time = 0.000000
-0.150000 1000401.0000000000000
-0.450000 1010401.0000000000000
-0.750000 1020401.0000000000000
-1.050000 1030401.0000000000000
-1.350000 1040401.0000000000000
-1.650000 1050401.0000000000000
-1.950000 1060401.0000000000000
-2.250000 1070401.0000000000000
-2.550000 1080401.0000000000000
-2.850000 1090401.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 1000502
+1 0 0 0 0 1 5 2 1010502
+1 0 0 0 0 2 5 2 1020502
+1 0 0 0 0 3 5 2 1030502
+1 0 0 0 0 4 5 2 1040502
+1 0 0 0 0 5 5 2 1050502
+1 0 0 0 0 6 5 2 1060502
+1 0 0 0 0 7 5 2 1070502
+1 0 0 0 0 8 5 2 1080502
+1 0 0 0 0 9 5 2 1090502
-"Time = 1.000000
-0.150000 1000400.0000000000000
-0.450000 1000401.0000000000000
-0.750000 1000402.0000000000000
-1.050000 1000403.0000000000000
-1.350000 1000404.0000000000000
-1.650000 1000405.0000000000000
-1.950000 1000406.0000000000000
-2.250000 1000407.0000000000000
-2.550000 1000408.0000000000000
-2.850000 1000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/s.yl b/CarpetAttic/Cart3dTest/test/axial-xz/s.yl
index 06c276397..3c3794e6d 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/s.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/s.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::s y (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 1000002
+0 0 0 0 0 0 1 2 1000102
+0 0 0 0 0 0 2 2 1000202
+0 0 0 0 0 0 3 2 1000302
+0 0 0 0 0 0 4 2 1000402
+0 0 0 0 0 0 5 2 1000502
+0 0 0 0 0 0 6 2 1000602
+0 0 0 0 0 0 7 2 1000702
+0 0 0 0 0 0 8 2 1000802
+0 0 0 0 0 0 9 2 1000902
+0 0 0 0 0 0 10 2 1001002
-"Time = 0.000000
--1.350000 1000001.0000000000000
--1.050000 1000101.0000000000000
--0.750000 1000201.0000000000000
--0.450000 1000301.0000000000000
--0.150000 1000401.0000000000000
-0.150000 1000501.0000000000000
-0.450000 1000601.0000000000000
-0.750000 1000701.0000000000000
-1.050000 1000801.0000000000000
-1.350000 1000901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 1000002
+1 0 0 0 0 0 1 2 1000102
+1 0 0 0 0 0 2 2 1000202
+1 0 0 0 0 0 3 2 1000302
+1 0 0 0 0 0 4 2 1000402
+1 0 0 0 0 0 5 2 1000502
+1 0 0 0 0 0 6 2 1000602
+1 0 0 0 0 0 7 2 1000702
+1 0 0 0 0 0 8 2 1000802
+1 0 0 0 0 0 9 2 1000902
+1 0 0 0 0 0 10 2 1001002
-"Time = 1.000000
--1.350000 1000000.0000000000000
--1.050000 1000100.0000000000000
--0.750000 1000200.0000000000000
--0.450000 1000300.0000000000000
--0.150000 1000400.0000000000000
-0.150000 1000500.0000000000000
-0.450000 1000600.0000000000000
-0.750000 1000700.0000000000000
-1.050000 1000800.0000000000000
-1.350000 1000900.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/s.zl b/CarpetAttic/Cart3dTest/test/axial-xz/s.zl
index d5dd7e3eb..e912f74c2 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/s.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/s.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::s z (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 1000500
+0 0 0 0 0 0 5 1 1000501
+0 0 0 0 0 0 5 2 1000502
+0 0 0 0 0 0 5 3 1000503
+0 0 0 0 0 0 5 4 1000504
+0 0 0 0 0 0 5 5 1000505
+0 0 0 0 0 0 5 6 1000506
+0 0 0 0 0 0 5 7 1000507
+0 0 0 0 0 0 5 8 1000508
+0 0 0 0 0 0 5 9 1000509
+0 0 0 0 0 0 5 10 1000510
+0 0 0 0 0 0 5 11 1000511
-"Time = 0.000000
--0.450000 1000400.0000000000000
--0.150000 1000401.0000000000000
-0.150000 1000402.0000000000000
-0.450000 1000403.0000000000000
-0.750000 1000404.0000000000000
-1.050000 1000405.0000000000000
-1.350000 1000406.0000000000000
-1.650000 1000407.0000000000000
-1.950000 1000408.0000000000000
-2.250000 1000409.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 1010502
+1 0 0 0 0 0 5 1 1000502
+1 0 0 0 0 0 5 2 1000502
+1 0 0 0 0 0 5 3 1000503
+1 0 0 0 0 0 5 4 1000504
+1 0 0 0 0 0 5 5 1000505
+1 0 0 0 0 0 5 6 1000506
+1 0 0 0 0 0 5 7 1000507
+1 0 0 0 0 0 5 8 1000508
+1 0 0 0 0 0 5 9 1000509
+1 0 0 0 0 0 5 10 1000510
+1 0 0 0 0 0 5 11 1000511
-"Time = 1.000000
--0.450000 1010400.0000000000000
--0.150000 1000400.0000000000000
-0.150000 1000402.0000000000000
-0.450000 1000403.0000000000000
-0.750000 1000404.0000000000000
-1.050000 1000405.0000000000000
-1.350000 1000406.0000000000000
-1.650000 1000407.0000000000000
-1.950000 1000408.0000000000000
-2.250000 1000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/spher3d_r.xl b/CarpetAttic/Cart3dTest/test/axial-xz/spher3d_r.xl
index a7e55a2d4..7efce477f 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/spher3d_r.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/spher3d_r.xl
@@ -1,26 +1,32 @@
+# GRID::spher3d_r x (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 0.259807621135332
+0 0 0 0 0 1 5 2 0.49749371855331
+0 0 0 0 0 2 5 2 0.779422863405995
+0 0 0 0 0 3 5 2 1.07121426428143
+0 0 0 0 0 4 5 2 1.36656503687164
+0 0 0 0 0 5 5 2 1.66358047596141
+0 0 0 0 0 6 5 2 1.9615045245933
+0 0 0 0 0 7 5 2 2.2599778759979
+0 0 0 0 0 8 5 2 2.5588083163848
+0 0 0 0 0 9 5 2 2.85788383248865
-"Time = 0.000000
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
-2.550000 2.5588083163848
-2.850000 2.8578838324886
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 0.259807621135332
+1 0 0 0 0 1 5 2 0.49749371855331
+1 0 0 0 0 2 5 2 0.779422863405995
+1 0 0 0 0 3 5 2 1.07121426428143
+1 0 0 0 0 4 5 2 1.36656503687164
+1 0 0 0 0 5 5 2 1.66358047596141
+1 0 0 0 0 6 5 2 1.9615045245933
+1 0 0 0 0 7 5 2 2.2599778759979
+1 0 0 0 0 8 5 2 2.5588083163848
+1 0 0 0 0 9 5 2 2.85788383248865
-"Time = 1.000000
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
-2.550000 2.5588083163848
-2.850000 2.8578838324886
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/spher3d_r.yl b/CarpetAttic/Cart3dTest/test/axial-xz/spher3d_r.yl
index 2865c92e4..4ddf0c5ee 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/spher3d_r.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/spher3d_r.yl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r y (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 1.36656503687164
+0 0 0 0 0 0 1 2 1.07121426428143
+0 0 0 0 0 0 2 2 0.779422863405995
+0 0 0 0 0 0 3 2 0.49749371855331
+0 0 0 0 0 0 4 2 0.259807621135332
+0 0 0 0 0 0 5 2 0.259807621135332
+0 0 0 0 0 0 6 2 0.49749371855331
+0 0 0 0 0 0 7 2 0.779422863405995
+0 0 0 0 0 0 8 2 1.07121426428143
+0 0 0 0 0 0 9 2 1.36656503687164
+0 0 0 0 0 0 10 2 1.66358047596141
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 1.36656503687164
+1 0 0 0 0 0 1 2 1.07121426428143
+1 0 0 0 0 0 2 2 0.779422863405995
+1 0 0 0 0 0 3 2 0.49749371855331
+1 0 0 0 0 0 4 2 0.259807621135332
+1 0 0 0 0 0 5 2 0.259807621135332
+1 0 0 0 0 0 6 2 0.49749371855331
+1 0 0 0 0 0 7 2 0.779422863405995
+1 0 0 0 0 0 8 2 1.07121426428143
+1 0 0 0 0 0 9 2 1.36656503687164
+1 0 0 0 0 0 10 2 1.66358047596141
-"Time = 1.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/spher3d_r.zl b/CarpetAttic/Cart3dTest/test/axial-xz/spher3d_r.zl
index 10f9f0031..20ed189a5 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/spher3d_r.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/spher3d_r.zl
@@ -1,26 +1,36 @@
+# GRID::spher3d_r z (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 0.49749371855331
+0 0 0 0 0 0 5 1 0.259807621135332
+0 0 0 0 0 0 5 2 0.259807621135332
+0 0 0 0 0 0 5 3 0.49749371855331
+0 0 0 0 0 0 5 4 0.779422863405995
+0 0 0 0 0 0 5 5 1.07121426428143
+0 0 0 0 0 0 5 6 1.36656503687164
+0 0 0 0 0 0 5 7 1.66358047596141
+0 0 0 0 0 0 5 8 1.9615045245933
+0 0 0 0 0 0 5 9 2.2599778759979
+0 0 0 0 0 0 5 10 2.5588083163848
+0 0 0 0 0 0 5 11 2.85788383248865
-"Time = 0.000000
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 0.49749371855331
+1 0 0 0 0 0 5 1 0.259807621135332
+1 0 0 0 0 0 5 2 0.259807621135332
+1 0 0 0 0 0 5 3 0.49749371855331
+1 0 0 0 0 0 5 4 0.779422863405995
+1 0 0 0 0 0 5 5 1.07121426428143
+1 0 0 0 0 0 5 6 1.36656503687164
+1 0 0 0 0 0 5 7 1.66358047596141
+1 0 0 0 0 0 5 8 1.9615045245933
+1 0 0 0 0 0 5 9 2.2599778759979
+1 0 0 0 0 0 5 10 2.5588083163848
+1 0 0 0 0 0 5 11 2.85788383248865
-"Time = 1.000000
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/txx.xl b/CarpetAttic/Cart3dTest/test/axial-xz/txx.xl
index d488ab5af..dddc57d42 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/txx.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/txx.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::txx x (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 21000502
+0 0 0 0 0 1 5 2 21010502
+0 0 0 0 0 2 5 2 21020502
+0 0 0 0 0 3 5 2 21030502
+0 0 0 0 0 4 5 2 21040502
+0 0 0 0 0 5 5 2 21050502
+0 0 0 0 0 6 5 2 21060502
+0 0 0 0 0 7 5 2 21070502
+0 0 0 0 0 8 5 2 21080502
+0 0 0 0 0 9 5 2 21090502
-"Time = 0.000000
-0.150000 21000401.0000000000000
-0.450000 21010401.0000000000000
-0.750000 21020401.0000000000000
-1.050000 21030401.0000000000000
-1.350000 21040401.0000000000000
-1.650000 21050401.0000000000000
-1.950000 21060401.0000000000000
-2.250000 21070401.0000000000000
-2.550000 21080401.0000000000000
-2.850000 21090401.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 21000502
+1 0 0 0 0 1 5 2 21010502
+1 0 0 0 0 2 5 2 21020502
+1 0 0 0 0 3 5 2 21030502
+1 0 0 0 0 4 5 2 21040502
+1 0 0 0 0 5 5 2 21050502
+1 0 0 0 0 6 5 2 21060502
+1 0 0 0 0 7 5 2 21070502
+1 0 0 0 0 8 5 2 21080502
+1 0 0 0 0 9 5 2 21090502
-"Time = 1.000000
-0.150000 26000400.0000000000000
-0.450000 26000401.0000000000000
-0.750000 26000402.0000000000000
-1.050000 26000403.0000000000000
-1.350000 26000404.0000000000000
-1.650000 26000405.0000000000000
-1.950000 26000406.0000000000000
-2.250000 26000407.0000000000000
-2.550000 26000408.0000000000000
-2.850000 26000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/txx.yl b/CarpetAttic/Cart3dTest/test/axial-xz/txx.yl
index 32a31b15f..f144e6ce7 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/txx.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/txx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx y (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 21000002
+0 0 0 0 0 0 1 2 21000102
+0 0 0 0 0 0 2 2 21000202
+0 0 0 0 0 0 3 2 21000302
+0 0 0 0 0 0 4 2 21000402
+0 0 0 0 0 0 5 2 21000502
+0 0 0 0 0 0 6 2 21000602
+0 0 0 0 0 0 7 2 21000702
+0 0 0 0 0 0 8 2 21000802
+0 0 0 0 0 0 9 2 21000902
+0 0 0 0 0 0 10 2 21001002
-"Time = 0.000000
--1.350000 21000001.0000000000000
--1.050000 21000101.0000000000000
--0.750000 21000201.0000000000000
--0.450000 21000301.0000000000000
--0.150000 21000401.0000000000000
-0.150000 21000501.0000000000000
-0.450000 21000601.0000000000000
-0.750000 21000701.0000000000000
-1.050000 21000801.0000000000000
-1.350000 21000901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 21000002
+1 0 0 0 0 0 1 2 21000102
+1 0 0 0 0 0 2 2 21000202
+1 0 0 0 0 0 3 2 21000302
+1 0 0 0 0 0 4 2 21000402
+1 0 0 0 0 0 5 2 21000502
+1 0 0 0 0 0 6 2 21000602
+1 0 0 0 0 0 7 2 21000702
+1 0 0 0 0 0 8 2 21000802
+1 0 0 0 0 0 9 2 21000902
+1 0 0 0 0 0 10 2 21001002
-"Time = 1.000000
--1.350000 26000000.0000000000000
--1.050000 26000100.0000000000000
--0.750000 26000200.0000000000000
--0.450000 26000300.0000000000000
--0.150000 26000400.0000000000000
-0.150000 26000500.0000000000000
-0.450000 26000600.0000000000000
-0.750000 26000700.0000000000000
-1.050000 26000800.0000000000000
-1.350000 26000900.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/txx.zl b/CarpetAttic/Cart3dTest/test/axial-xz/txx.zl
index 3d4977937..f88a697ea 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/txx.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/txx.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::txx z (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 21000500
+0 0 0 0 0 0 5 1 21000501
+0 0 0 0 0 0 5 2 21000502
+0 0 0 0 0 0 5 3 21000503
+0 0 0 0 0 0 5 4 21000504
+0 0 0 0 0 0 5 5 21000505
+0 0 0 0 0 0 5 6 21000506
+0 0 0 0 0 0 5 7 21000507
+0 0 0 0 0 0 5 8 21000508
+0 0 0 0 0 0 5 9 21000509
+0 0 0 0 0 0 5 10 21000510
+0 0 0 0 0 0 5 11 21000511
-"Time = 0.000000
--0.450000 21000400.0000000000000
--0.150000 21000401.0000000000000
-0.150000 21000402.0000000000000
-0.450000 21000403.0000000000000
-0.750000 21000404.0000000000000
-1.050000 21000405.0000000000000
-1.350000 21000406.0000000000000
-1.650000 21000407.0000000000000
-1.950000 21000408.0000000000000
-2.250000 21000409.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 26010502
+1 0 0 0 0 0 5 1 26000502
+1 0 0 0 0 0 5 2 21000502
+1 0 0 0 0 0 5 3 21000503
+1 0 0 0 0 0 5 4 21000504
+1 0 0 0 0 0 5 5 21000505
+1 0 0 0 0 0 5 6 21000506
+1 0 0 0 0 0 5 7 21000507
+1 0 0 0 0 0 5 8 21000508
+1 0 0 0 0 0 5 9 21000509
+1 0 0 0 0 0 5 10 21000510
+1 0 0 0 0 0 5 11 21000511
-"Time = 1.000000
--0.450000 26010400.0000000000000
--0.150000 26000400.0000000000000
-0.150000 21000402.0000000000000
-0.450000 21000403.0000000000000
-0.750000 21000404.0000000000000
-1.050000 21000405.0000000000000
-1.350000 21000406.0000000000000
-1.650000 21000407.0000000000000
-1.950000 21000408.0000000000000
-2.250000 21000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/txy.xl b/CarpetAttic/Cart3dTest/test/axial-xz/txy.xl
index c64c2206d..800bad062 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/txy.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/txy.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::txy x (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 22000502
+0 0 0 0 0 1 5 2 22010502
+0 0 0 0 0 2 5 2 22020502
+0 0 0 0 0 3 5 2 22030502
+0 0 0 0 0 4 5 2 22040502
+0 0 0 0 0 5 5 2 22050502
+0 0 0 0 0 6 5 2 22060502
+0 0 0 0 0 7 5 2 22070502
+0 0 0 0 0 8 5 2 22080502
+0 0 0 0 0 9 5 2 22090502
-"Time = 0.000000
-0.150000 22000401.0000000000000
-0.450000 22010401.0000000000000
-0.750000 22020401.0000000000000
-1.050000 22030401.0000000000000
-1.350000 22040401.0000000000000
-1.650000 22050401.0000000000000
-1.950000 22060401.0000000000000
-2.250000 22070401.0000000000000
-2.550000 22080401.0000000000000
-2.850000 22090401.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 22000502
+1 0 0 0 0 1 5 2 22010502
+1 0 0 0 0 2 5 2 22020502
+1 0 0 0 0 3 5 2 22030502
+1 0 0 0 0 4 5 2 22040502
+1 0 0 0 0 5 5 2 22050502
+1 0 0 0 0 6 5 2 22060502
+1 0 0 0 0 7 5 2 22070502
+1 0 0 0 0 8 5 2 22080502
+1 0 0 0 0 9 5 2 22090502
-"Time = 1.000000
-0.150000 25000400.0000000000000
-0.450000 25000401.0000000000000
-0.750000 25000402.0000000000000
-1.050000 25000403.0000000000000
-1.350000 25000404.0000000000000
-1.650000 25000405.0000000000000
-1.950000 25000406.0000000000000
-2.250000 25000407.0000000000000
-2.550000 25000408.0000000000000
-2.850000 25000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/txy.yl b/CarpetAttic/Cart3dTest/test/axial-xz/txy.yl
index 885ccebf5..ea7036831 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/txy.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/txy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy y (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 22000002
+0 0 0 0 0 0 1 2 22000102
+0 0 0 0 0 0 2 2 22000202
+0 0 0 0 0 0 3 2 22000302
+0 0 0 0 0 0 4 2 22000402
+0 0 0 0 0 0 5 2 22000502
+0 0 0 0 0 0 6 2 22000602
+0 0 0 0 0 0 7 2 22000702
+0 0 0 0 0 0 8 2 22000802
+0 0 0 0 0 0 9 2 22000902
+0 0 0 0 0 0 10 2 22001002
-"Time = 0.000000
--1.350000 22000001.0000000000000
--1.050000 22000101.0000000000000
--0.750000 22000201.0000000000000
--0.450000 22000301.0000000000000
--0.150000 22000401.0000000000000
-0.150000 22000501.0000000000000
-0.450000 22000601.0000000000000
-0.750000 22000701.0000000000000
-1.050000 22000801.0000000000000
-1.350000 22000901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 22000002
+1 0 0 0 0 0 1 2 22000102
+1 0 0 0 0 0 2 2 22000202
+1 0 0 0 0 0 3 2 22000302
+1 0 0 0 0 0 4 2 22000402
+1 0 0 0 0 0 5 2 22000502
+1 0 0 0 0 0 6 2 22000602
+1 0 0 0 0 0 7 2 22000702
+1 0 0 0 0 0 8 2 22000802
+1 0 0 0 0 0 9 2 22000902
+1 0 0 0 0 0 10 2 22001002
-"Time = 1.000000
--1.350000 25000000.0000000000000
--1.050000 25000100.0000000000000
--0.750000 25000200.0000000000000
--0.450000 25000300.0000000000000
--0.150000 25000400.0000000000000
-0.150000 25000500.0000000000000
-0.450000 25000600.0000000000000
-0.750000 25000700.0000000000000
-1.050000 25000800.0000000000000
-1.350000 25000900.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/txy.zl b/CarpetAttic/Cart3dTest/test/axial-xz/txy.zl
index 32f3b8989..e35d489d7 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/txy.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/txy.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::txy z (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 22000500
+0 0 0 0 0 0 5 1 22000501
+0 0 0 0 0 0 5 2 22000502
+0 0 0 0 0 0 5 3 22000503
+0 0 0 0 0 0 5 4 22000504
+0 0 0 0 0 0 5 5 22000505
+0 0 0 0 0 0 5 6 22000506
+0 0 0 0 0 0 5 7 22000507
+0 0 0 0 0 0 5 8 22000508
+0 0 0 0 0 0 5 9 22000509
+0 0 0 0 0 0 5 10 22000510
+0 0 0 0 0 0 5 11 22000511
-"Time = 0.000000
--0.450000 22000400.0000000000000
--0.150000 22000401.0000000000000
-0.150000 22000402.0000000000000
-0.450000 22000403.0000000000000
-0.750000 22000404.0000000000000
-1.050000 22000405.0000000000000
-1.350000 22000406.0000000000000
-1.650000 22000407.0000000000000
-1.950000 22000408.0000000000000
-2.250000 22000409.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 25010502
+1 0 0 0 0 0 5 1 25000502
+1 0 0 0 0 0 5 2 22000502
+1 0 0 0 0 0 5 3 22000503
+1 0 0 0 0 0 5 4 22000504
+1 0 0 0 0 0 5 5 22000505
+1 0 0 0 0 0 5 6 22000506
+1 0 0 0 0 0 5 7 22000507
+1 0 0 0 0 0 5 8 22000508
+1 0 0 0 0 0 5 9 22000509
+1 0 0 0 0 0 5 10 22000510
+1 0 0 0 0 0 5 11 22000511
-"Time = 1.000000
--0.450000 25010400.0000000000000
--0.150000 25000400.0000000000000
-0.150000 22000402.0000000000000
-0.450000 22000403.0000000000000
-0.750000 22000404.0000000000000
-1.050000 22000405.0000000000000
-1.350000 22000406.0000000000000
-1.650000 22000407.0000000000000
-1.950000 22000408.0000000000000
-2.250000 22000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/txz.xl b/CarpetAttic/Cart3dTest/test/axial-xz/txz.xl
index 121f01f48..324c18d16 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/txz.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/txz.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::txz x (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 23000502
+0 0 0 0 0 1 5 2 23010502
+0 0 0 0 0 2 5 2 23020502
+0 0 0 0 0 3 5 2 23030502
+0 0 0 0 0 4 5 2 23040502
+0 0 0 0 0 5 5 2 23050502
+0 0 0 0 0 6 5 2 23060502
+0 0 0 0 0 7 5 2 23070502
+0 0 0 0 0 8 5 2 23080502
+0 0 0 0 0 9 5 2 23090502
-"Time = 0.000000
-0.150000 23000401.0000000000000
-0.450000 23010401.0000000000000
-0.750000 23020401.0000000000000
-1.050000 23030401.0000000000000
-1.350000 23040401.0000000000000
-1.650000 23050401.0000000000000
-1.950000 23060401.0000000000000
-2.250000 23070401.0000000000000
-2.550000 23080401.0000000000000
-2.850000 23090401.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 23000502
+1 0 0 0 0 1 5 2 23010502
+1 0 0 0 0 2 5 2 23020502
+1 0 0 0 0 3 5 2 23030502
+1 0 0 0 0 4 5 2 23040502
+1 0 0 0 0 5 5 2 23050502
+1 0 0 0 0 6 5 2 23060502
+1 0 0 0 0 7 5 2 23070502
+1 0 0 0 0 8 5 2 23080502
+1 0 0 0 0 9 5 2 23090502
-"Time = 1.000000
-0.150000 -23000400.0000000000000
-0.450000 -23000401.0000000000000
-0.750000 -23000402.0000000000000
-1.050000 -23000403.0000000000000
-1.350000 -23000404.0000000000000
-1.650000 -23000405.0000000000000
-1.950000 -23000406.0000000000000
-2.250000 -23000407.0000000000000
-2.550000 -23000408.0000000000000
-2.850000 -23000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/txz.yl b/CarpetAttic/Cart3dTest/test/axial-xz/txz.yl
index 03c0601a1..40b3b86b1 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/txz.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/txz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz y (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 23000002
+0 0 0 0 0 0 1 2 23000102
+0 0 0 0 0 0 2 2 23000202
+0 0 0 0 0 0 3 2 23000302
+0 0 0 0 0 0 4 2 23000402
+0 0 0 0 0 0 5 2 23000502
+0 0 0 0 0 0 6 2 23000602
+0 0 0 0 0 0 7 2 23000702
+0 0 0 0 0 0 8 2 23000802
+0 0 0 0 0 0 9 2 23000902
+0 0 0 0 0 0 10 2 23001002
-"Time = 0.000000
--1.350000 23000001.0000000000000
--1.050000 23000101.0000000000000
--0.750000 23000201.0000000000000
--0.450000 23000301.0000000000000
--0.150000 23000401.0000000000000
-0.150000 23000501.0000000000000
-0.450000 23000601.0000000000000
-0.750000 23000701.0000000000000
-1.050000 23000801.0000000000000
-1.350000 23000901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 23000002
+1 0 0 0 0 0 1 2 23000102
+1 0 0 0 0 0 2 2 23000202
+1 0 0 0 0 0 3 2 23000302
+1 0 0 0 0 0 4 2 23000402
+1 0 0 0 0 0 5 2 23000502
+1 0 0 0 0 0 6 2 23000602
+1 0 0 0 0 0 7 2 23000702
+1 0 0 0 0 0 8 2 23000802
+1 0 0 0 0 0 9 2 23000902
+1 0 0 0 0 0 10 2 23001002
-"Time = 1.000000
--1.350000 -23000000.0000000000000
--1.050000 -23000100.0000000000000
--0.750000 -23000200.0000000000000
--0.450000 -23000300.0000000000000
--0.150000 -23000400.0000000000000
-0.150000 -23000500.0000000000000
-0.450000 -23000600.0000000000000
-0.750000 -23000700.0000000000000
-1.050000 -23000800.0000000000000
-1.350000 -23000900.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/txz.zl b/CarpetAttic/Cart3dTest/test/axial-xz/txz.zl
index 08e36c4b7..1c30c5d89 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/txz.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/txz.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::txz z (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 23000500
+0 0 0 0 0 0 5 1 23000501
+0 0 0 0 0 0 5 2 23000502
+0 0 0 0 0 0 5 3 23000503
+0 0 0 0 0 0 5 4 23000504
+0 0 0 0 0 0 5 5 23000505
+0 0 0 0 0 0 5 6 23000506
+0 0 0 0 0 0 5 7 23000507
+0 0 0 0 0 0 5 8 23000508
+0 0 0 0 0 0 5 9 23000509
+0 0 0 0 0 0 5 10 23000510
+0 0 0 0 0 0 5 11 23000511
-"Time = 0.000000
--0.450000 23000400.0000000000000
--0.150000 23000401.0000000000000
-0.150000 23000402.0000000000000
-0.450000 23000403.0000000000000
-0.750000 23000404.0000000000000
-1.050000 23000405.0000000000000
-1.350000 23000406.0000000000000
-1.650000 23000407.0000000000000
-1.950000 23000408.0000000000000
-2.250000 23000409.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 -23010502
+1 0 0 0 0 0 5 1 -23000502
+1 0 0 0 0 0 5 2 23000502
+1 0 0 0 0 0 5 3 23000503
+1 0 0 0 0 0 5 4 23000504
+1 0 0 0 0 0 5 5 23000505
+1 0 0 0 0 0 5 6 23000506
+1 0 0 0 0 0 5 7 23000507
+1 0 0 0 0 0 5 8 23000508
+1 0 0 0 0 0 5 9 23000509
+1 0 0 0 0 0 5 10 23000510
+1 0 0 0 0 0 5 11 23000511
-"Time = 1.000000
--0.450000 -23010400.0000000000000
--0.150000 -23000400.0000000000000
-0.150000 23000402.0000000000000
-0.450000 23000403.0000000000000
-0.750000 23000404.0000000000000
-1.050000 23000405.0000000000000
-1.350000 23000406.0000000000000
-1.650000 23000407.0000000000000
-1.950000 23000408.0000000000000
-2.250000 23000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/tyy.xl b/CarpetAttic/Cart3dTest/test/axial-xz/tyy.xl
index 36ed8719d..c9dfea5cd 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/tyy.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/tyy.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::tyy x (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 24000502
+0 0 0 0 0 1 5 2 24010502
+0 0 0 0 0 2 5 2 24020502
+0 0 0 0 0 3 5 2 24030502
+0 0 0 0 0 4 5 2 24040502
+0 0 0 0 0 5 5 2 24050502
+0 0 0 0 0 6 5 2 24060502
+0 0 0 0 0 7 5 2 24070502
+0 0 0 0 0 8 5 2 24080502
+0 0 0 0 0 9 5 2 24090502
-"Time = 0.000000
-0.150000 24000401.0000000000000
-0.450000 24010401.0000000000000
-0.750000 24020401.0000000000000
-1.050000 24030401.0000000000000
-1.350000 24040401.0000000000000
-1.650000 24050401.0000000000000
-1.950000 24060401.0000000000000
-2.250000 24070401.0000000000000
-2.550000 24080401.0000000000000
-2.850000 24090401.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 24000502
+1 0 0 0 0 1 5 2 24010502
+1 0 0 0 0 2 5 2 24020502
+1 0 0 0 0 3 5 2 24030502
+1 0 0 0 0 4 5 2 24040502
+1 0 0 0 0 5 5 2 24050502
+1 0 0 0 0 6 5 2 24060502
+1 0 0 0 0 7 5 2 24070502
+1 0 0 0 0 8 5 2 24080502
+1 0 0 0 0 9 5 2 24090502
-"Time = 1.000000
-0.150000 24000400.0000000000000
-0.450000 24000401.0000000000000
-0.750000 24000402.0000000000000
-1.050000 24000403.0000000000000
-1.350000 24000404.0000000000000
-1.650000 24000405.0000000000000
-1.950000 24000406.0000000000000
-2.250000 24000407.0000000000000
-2.550000 24000408.0000000000000
-2.850000 24000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/tyy.yl b/CarpetAttic/Cart3dTest/test/axial-xz/tyy.yl
index f8932d432..70ada4bb7 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/tyy.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/tyy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy y (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 24000002
+0 0 0 0 0 0 1 2 24000102
+0 0 0 0 0 0 2 2 24000202
+0 0 0 0 0 0 3 2 24000302
+0 0 0 0 0 0 4 2 24000402
+0 0 0 0 0 0 5 2 24000502
+0 0 0 0 0 0 6 2 24000602
+0 0 0 0 0 0 7 2 24000702
+0 0 0 0 0 0 8 2 24000802
+0 0 0 0 0 0 9 2 24000902
+0 0 0 0 0 0 10 2 24001002
-"Time = 0.000000
--1.350000 24000001.0000000000000
--1.050000 24000101.0000000000000
--0.750000 24000201.0000000000000
--0.450000 24000301.0000000000000
--0.150000 24000401.0000000000000
-0.150000 24000501.0000000000000
-0.450000 24000601.0000000000000
-0.750000 24000701.0000000000000
-1.050000 24000801.0000000000000
-1.350000 24000901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 24000002
+1 0 0 0 0 0 1 2 24000102
+1 0 0 0 0 0 2 2 24000202
+1 0 0 0 0 0 3 2 24000302
+1 0 0 0 0 0 4 2 24000402
+1 0 0 0 0 0 5 2 24000502
+1 0 0 0 0 0 6 2 24000602
+1 0 0 0 0 0 7 2 24000702
+1 0 0 0 0 0 8 2 24000802
+1 0 0 0 0 0 9 2 24000902
+1 0 0 0 0 0 10 2 24001002
-"Time = 1.000000
--1.350000 24000000.0000000000000
--1.050000 24000100.0000000000000
--0.750000 24000200.0000000000000
--0.450000 24000300.0000000000000
--0.150000 24000400.0000000000000
-0.150000 24000500.0000000000000
-0.450000 24000600.0000000000000
-0.750000 24000700.0000000000000
-1.050000 24000800.0000000000000
-1.350000 24000900.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/tyy.zl b/CarpetAttic/Cart3dTest/test/axial-xz/tyy.zl
index cb31044ff..9e4ed8e14 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/tyy.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/tyy.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::tyy z (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 24000500
+0 0 0 0 0 0 5 1 24000501
+0 0 0 0 0 0 5 2 24000502
+0 0 0 0 0 0 5 3 24000503
+0 0 0 0 0 0 5 4 24000504
+0 0 0 0 0 0 5 5 24000505
+0 0 0 0 0 0 5 6 24000506
+0 0 0 0 0 0 5 7 24000507
+0 0 0 0 0 0 5 8 24000508
+0 0 0 0 0 0 5 9 24000509
+0 0 0 0 0 0 5 10 24000510
+0 0 0 0 0 0 5 11 24000511
-"Time = 0.000000
--0.450000 24000400.0000000000000
--0.150000 24000401.0000000000000
-0.150000 24000402.0000000000000
-0.450000 24000403.0000000000000
-0.750000 24000404.0000000000000
-1.050000 24000405.0000000000000
-1.350000 24000406.0000000000000
-1.650000 24000407.0000000000000
-1.950000 24000408.0000000000000
-2.250000 24000409.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 24010502
+1 0 0 0 0 0 5 1 24000502
+1 0 0 0 0 0 5 2 24000502
+1 0 0 0 0 0 5 3 24000503
+1 0 0 0 0 0 5 4 24000504
+1 0 0 0 0 0 5 5 24000505
+1 0 0 0 0 0 5 6 24000506
+1 0 0 0 0 0 5 7 24000507
+1 0 0 0 0 0 5 8 24000508
+1 0 0 0 0 0 5 9 24000509
+1 0 0 0 0 0 5 10 24000510
+1 0 0 0 0 0 5 11 24000511
-"Time = 1.000000
--0.450000 24010400.0000000000000
--0.150000 24000400.0000000000000
-0.150000 24000402.0000000000000
-0.450000 24000403.0000000000000
-0.750000 24000404.0000000000000
-1.050000 24000405.0000000000000
-1.350000 24000406.0000000000000
-1.650000 24000407.0000000000000
-1.950000 24000408.0000000000000
-2.250000 24000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/tyz.xl b/CarpetAttic/Cart3dTest/test/axial-xz/tyz.xl
index df955345e..a17e87241 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/tyz.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/tyz.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::tyz x (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 25000502
+0 0 0 0 0 1 5 2 25010502
+0 0 0 0 0 2 5 2 25020502
+0 0 0 0 0 3 5 2 25030502
+0 0 0 0 0 4 5 2 25040502
+0 0 0 0 0 5 5 2 25050502
+0 0 0 0 0 6 5 2 25060502
+0 0 0 0 0 7 5 2 25070502
+0 0 0 0 0 8 5 2 25080502
+0 0 0 0 0 9 5 2 25090502
-"Time = 0.000000
-0.150000 25000401.0000000000000
-0.450000 25010401.0000000000000
-0.750000 25020401.0000000000000
-1.050000 25030401.0000000000000
-1.350000 25040401.0000000000000
-1.650000 25050401.0000000000000
-1.950000 25060401.0000000000000
-2.250000 25070401.0000000000000
-2.550000 25080401.0000000000000
-2.850000 25090401.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 25000502
+1 0 0 0 0 1 5 2 25010502
+1 0 0 0 0 2 5 2 25020502
+1 0 0 0 0 3 5 2 25030502
+1 0 0 0 0 4 5 2 25040502
+1 0 0 0 0 5 5 2 25050502
+1 0 0 0 0 6 5 2 25060502
+1 0 0 0 0 7 5 2 25070502
+1 0 0 0 0 8 5 2 25080502
+1 0 0 0 0 9 5 2 25090502
-"Time = 1.000000
-0.150000 -25010400.0000000000000
-0.450000 -25000400.0000000000000
-0.750000 -22000402.0000000000000
-1.050000 -22000403.0000000000000
-1.350000 -22000404.0000000000000
-1.650000 -22000405.0000000000000
-1.950000 -22000406.0000000000000
-2.250000 -22000407.0000000000000
-2.550000 -22000408.0000000000000
-2.850000 -22000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/tyz.yl b/CarpetAttic/Cart3dTest/test/axial-xz/tyz.yl
index 60757ddcf..5cd432b3b 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/tyz.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/tyz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz y (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 25000002
+0 0 0 0 0 0 1 2 25000102
+0 0 0 0 0 0 2 2 25000202
+0 0 0 0 0 0 3 2 25000302
+0 0 0 0 0 0 4 2 25000402
+0 0 0 0 0 0 5 2 25000502
+0 0 0 0 0 0 6 2 25000602
+0 0 0 0 0 0 7 2 25000702
+0 0 0 0 0 0 8 2 25000802
+0 0 0 0 0 0 9 2 25000902
+0 0 0 0 0 0 10 2 25001002
-"Time = 0.000000
--1.350000 25000001.0000000000000
--1.050000 25000101.0000000000000
--0.750000 25000201.0000000000000
--0.450000 25000301.0000000000000
--0.150000 25000401.0000000000000
-0.150000 25000501.0000000000000
-0.450000 25000601.0000000000000
-0.750000 25000701.0000000000000
-1.050000 25000801.0000000000000
-1.350000 25000901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 25000002
+1 0 0 0 0 0 1 2 25000102
+1 0 0 0 0 0 2 2 25000202
+1 0 0 0 0 0 3 2 25000302
+1 0 0 0 0 0 4 2 25000402
+1 0 0 0 0 0 5 2 25000502
+1 0 0 0 0 0 6 2 25000602
+1 0 0 0 0 0 7 2 25000702
+1 0 0 0 0 0 8 2 25000802
+1 0 0 0 0 0 9 2 25000902
+1 0 0 0 0 0 10 2 25001002
-"Time = 1.000000
--1.350000 -25010000.0000000000000
--1.050000 -25010100.0000000000000
--0.750000 -25010200.0000000000000
--0.450000 -25010300.0000000000000
--0.150000 -25010400.0000000000000
-0.150000 -25010500.0000000000000
-0.450000 -25010600.0000000000000
-0.750000 -25010700.0000000000000
-1.050000 -25010800.0000000000000
-1.350000 -25010900.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/tyz.zl b/CarpetAttic/Cart3dTest/test/axial-xz/tyz.zl
index 3412c2b82..fad94ff2a 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/tyz.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/tyz.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::tyz z (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 25000500
+0 0 0 0 0 0 5 1 25000501
+0 0 0 0 0 0 5 2 25000502
+0 0 0 0 0 0 5 3 25000503
+0 0 0 0 0 0 5 4 25000504
+0 0 0 0 0 0 5 5 25000505
+0 0 0 0 0 0 5 6 25000506
+0 0 0 0 0 0 5 7 25000507
+0 0 0 0 0 0 5 8 25000508
+0 0 0 0 0 0 5 9 25000509
+0 0 0 0 0 0 5 10 25000510
+0 0 0 0 0 0 5 11 25000511
-"Time = 0.000000
--0.450000 25000400.0000000000000
--0.150000 25000401.0000000000000
-0.150000 25000402.0000000000000
-0.450000 25000403.0000000000000
-0.750000 25000404.0000000000000
-1.050000 25000405.0000000000000
-1.350000 25000406.0000000000000
-1.650000 25000407.0000000000000
-1.950000 25000408.0000000000000
-2.250000 25000409.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 -22010502
+1 0 0 0 0 0 5 1 -22000502
+1 0 0 0 0 0 5 2 25000502
+1 0 0 0 0 0 5 3 25000503
+1 0 0 0 0 0 5 4 25000504
+1 0 0 0 0 0 5 5 25000505
+1 0 0 0 0 0 5 6 25000506
+1 0 0 0 0 0 5 7 25000507
+1 0 0 0 0 0 5 8 25000508
+1 0 0 0 0 0 5 9 25000509
+1 0 0 0 0 0 5 10 25000510
+1 0 0 0 0 0 5 11 25000511
-"Time = 1.000000
--0.450000 -25010401.0000000000000
--0.150000 -25010400.0000000000000
-0.150000 25000402.0000000000000
-0.450000 25000403.0000000000000
-0.750000 25000404.0000000000000
-1.050000 25000405.0000000000000
-1.350000 25000406.0000000000000
-1.650000 25000407.0000000000000
-1.950000 25000408.0000000000000
-2.250000 25000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/tzz.xl b/CarpetAttic/Cart3dTest/test/axial-xz/tzz.xl
index a33d1a5a6..e32b9e3a6 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/tzz.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/tzz.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::tzz x (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 26000502
+0 0 0 0 0 1 5 2 26010502
+0 0 0 0 0 2 5 2 26020502
+0 0 0 0 0 3 5 2 26030502
+0 0 0 0 0 4 5 2 26040502
+0 0 0 0 0 5 5 2 26050502
+0 0 0 0 0 6 5 2 26060502
+0 0 0 0 0 7 5 2 26070502
+0 0 0 0 0 8 5 2 26080502
+0 0 0 0 0 9 5 2 26090502
-"Time = 0.000000
-0.150000 26000401.0000000000000
-0.450000 26010401.0000000000000
-0.750000 26020401.0000000000000
-1.050000 26030401.0000000000000
-1.350000 26040401.0000000000000
-1.650000 26050401.0000000000000
-1.950000 26060401.0000000000000
-2.250000 26070401.0000000000000
-2.550000 26080401.0000000000000
-2.850000 26090401.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 26000502
+1 0 0 0 0 1 5 2 26010502
+1 0 0 0 0 2 5 2 26020502
+1 0 0 0 0 3 5 2 26030502
+1 0 0 0 0 4 5 2 26040502
+1 0 0 0 0 5 5 2 26050502
+1 0 0 0 0 6 5 2 26060502
+1 0 0 0 0 7 5 2 26070502
+1 0 0 0 0 8 5 2 26080502
+1 0 0 0 0 9 5 2 26090502
-"Time = 1.000000
-0.150000 26010400.0000000000000
-0.450000 26000400.0000000000000
-0.750000 21000402.0000000000000
-1.050000 21000403.0000000000000
-1.350000 21000404.0000000000000
-1.650000 21000405.0000000000000
-1.950000 21000406.0000000000000
-2.250000 21000407.0000000000000
-2.550000 21000408.0000000000000
-2.850000 21000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/tzz.yl b/CarpetAttic/Cart3dTest/test/axial-xz/tzz.yl
index e80a6988e..8029eb624 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/tzz.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/tzz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz y (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 26000002
+0 0 0 0 0 0 1 2 26000102
+0 0 0 0 0 0 2 2 26000202
+0 0 0 0 0 0 3 2 26000302
+0 0 0 0 0 0 4 2 26000402
+0 0 0 0 0 0 5 2 26000502
+0 0 0 0 0 0 6 2 26000602
+0 0 0 0 0 0 7 2 26000702
+0 0 0 0 0 0 8 2 26000802
+0 0 0 0 0 0 9 2 26000902
+0 0 0 0 0 0 10 2 26001002
-"Time = 0.000000
--1.350000 26000001.0000000000000
--1.050000 26000101.0000000000000
--0.750000 26000201.0000000000000
--0.450000 26000301.0000000000000
--0.150000 26000401.0000000000000
-0.150000 26000501.0000000000000
-0.450000 26000601.0000000000000
-0.750000 26000701.0000000000000
-1.050000 26000801.0000000000000
-1.350000 26000901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 26000002
+1 0 0 0 0 0 1 2 26000102
+1 0 0 0 0 0 2 2 26000202
+1 0 0 0 0 0 3 2 26000302
+1 0 0 0 0 0 4 2 26000402
+1 0 0 0 0 0 5 2 26000502
+1 0 0 0 0 0 6 2 26000602
+1 0 0 0 0 0 7 2 26000702
+1 0 0 0 0 0 8 2 26000802
+1 0 0 0 0 0 9 2 26000902
+1 0 0 0 0 0 10 2 26001002
-"Time = 1.000000
--1.350000 26010000.0000000000000
--1.050000 26010100.0000000000000
--0.750000 26010200.0000000000000
--0.450000 26010300.0000000000000
--0.150000 26010400.0000000000000
-0.150000 26010500.0000000000000
-0.450000 26010600.0000000000000
-0.750000 26010700.0000000000000
-1.050000 26010800.0000000000000
-1.350000 26010900.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/tzz.zl b/CarpetAttic/Cart3dTest/test/axial-xz/tzz.zl
index 0460d65fa..99c316841 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/tzz.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/tzz.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::tzz z (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 26000500
+0 0 0 0 0 0 5 1 26000501
+0 0 0 0 0 0 5 2 26000502
+0 0 0 0 0 0 5 3 26000503
+0 0 0 0 0 0 5 4 26000504
+0 0 0 0 0 0 5 5 26000505
+0 0 0 0 0 0 5 6 26000506
+0 0 0 0 0 0 5 7 26000507
+0 0 0 0 0 0 5 8 26000508
+0 0 0 0 0 0 5 9 26000509
+0 0 0 0 0 0 5 10 26000510
+0 0 0 0 0 0 5 11 26000511
-"Time = 0.000000
--0.450000 26000400.0000000000000
--0.150000 26000401.0000000000000
-0.150000 26000402.0000000000000
-0.450000 26000403.0000000000000
-0.750000 26000404.0000000000000
-1.050000 26000405.0000000000000
-1.350000 26000406.0000000000000
-1.650000 26000407.0000000000000
-1.950000 26000408.0000000000000
-2.250000 26000409.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 21010502
+1 0 0 0 0 0 5 1 21000502
+1 0 0 0 0 0 5 2 26000502
+1 0 0 0 0 0 5 3 26000503
+1 0 0 0 0 0 5 4 26000504
+1 0 0 0 0 0 5 5 26000505
+1 0 0 0 0 0 5 6 26000506
+1 0 0 0 0 0 5 7 26000507
+1 0 0 0 0 0 5 8 26000508
+1 0 0 0 0 0 5 9 26000509
+1 0 0 0 0 0 5 10 26000510
+1 0 0 0 0 0 5 11 26000511
-"Time = 1.000000
--0.450000 26010401.0000000000000
--0.150000 26010400.0000000000000
-0.150000 26000402.0000000000000
-0.450000 26000403.0000000000000
-0.750000 26000404.0000000000000
-1.050000 26000405.0000000000000
-1.350000 26000406.0000000000000
-1.650000 26000407.0000000000000
-1.950000 26000408.0000000000000
-2.250000 26000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/vx.xl b/CarpetAttic/Cart3dTest/test/axial-xz/vx.xl
index 281e183d3..31e489a4e 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/vx.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/vx.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::vx x (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 11000502
+0 0 0 0 0 1 5 2 11010502
+0 0 0 0 0 2 5 2 11020502
+0 0 0 0 0 3 5 2 11030502
+0 0 0 0 0 4 5 2 11040502
+0 0 0 0 0 5 5 2 11050502
+0 0 0 0 0 6 5 2 11060502
+0 0 0 0 0 7 5 2 11070502
+0 0 0 0 0 8 5 2 11080502
+0 0 0 0 0 9 5 2 11090502
-"Time = 0.000000
-0.150000 11000401.0000000000000
-0.450000 11010401.0000000000000
-0.750000 11020401.0000000000000
-1.050000 11030401.0000000000000
-1.350000 11040401.0000000000000
-1.650000 11050401.0000000000000
-1.950000 11060401.0000000000000
-2.250000 11070401.0000000000000
-2.550000 11080401.0000000000000
-2.850000 11090401.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 11000502
+1 0 0 0 0 1 5 2 11010502
+1 0 0 0 0 2 5 2 11020502
+1 0 0 0 0 3 5 2 11030502
+1 0 0 0 0 4 5 2 11040502
+1 0 0 0 0 5 5 2 11050502
+1 0 0 0 0 6 5 2 11060502
+1 0 0 0 0 7 5 2 11070502
+1 0 0 0 0 8 5 2 11080502
+1 0 0 0 0 9 5 2 11090502
-"Time = 1.000000
-0.150000 13000400.0000000000000
-0.450000 13000401.0000000000000
-0.750000 13000402.0000000000000
-1.050000 13000403.0000000000000
-1.350000 13000404.0000000000000
-1.650000 13000405.0000000000000
-1.950000 13000406.0000000000000
-2.250000 13000407.0000000000000
-2.550000 13000408.0000000000000
-2.850000 13000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/vx.yl b/CarpetAttic/Cart3dTest/test/axial-xz/vx.yl
index 90050f56b..b375f9e58 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/vx.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/vx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx y (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 11000002
+0 0 0 0 0 0 1 2 11000102
+0 0 0 0 0 0 2 2 11000202
+0 0 0 0 0 0 3 2 11000302
+0 0 0 0 0 0 4 2 11000402
+0 0 0 0 0 0 5 2 11000502
+0 0 0 0 0 0 6 2 11000602
+0 0 0 0 0 0 7 2 11000702
+0 0 0 0 0 0 8 2 11000802
+0 0 0 0 0 0 9 2 11000902
+0 0 0 0 0 0 10 2 11001002
-"Time = 0.000000
--1.350000 11000001.0000000000000
--1.050000 11000101.0000000000000
--0.750000 11000201.0000000000000
--0.450000 11000301.0000000000000
--0.150000 11000401.0000000000000
-0.150000 11000501.0000000000000
-0.450000 11000601.0000000000000
-0.750000 11000701.0000000000000
-1.050000 11000801.0000000000000
-1.350000 11000901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 11000002
+1 0 0 0 0 0 1 2 11000102
+1 0 0 0 0 0 2 2 11000202
+1 0 0 0 0 0 3 2 11000302
+1 0 0 0 0 0 4 2 11000402
+1 0 0 0 0 0 5 2 11000502
+1 0 0 0 0 0 6 2 11000602
+1 0 0 0 0 0 7 2 11000702
+1 0 0 0 0 0 8 2 11000802
+1 0 0 0 0 0 9 2 11000902
+1 0 0 0 0 0 10 2 11001002
-"Time = 1.000000
--1.350000 13000000.0000000000000
--1.050000 13000100.0000000000000
--0.750000 13000200.0000000000000
--0.450000 13000300.0000000000000
--0.150000 13000400.0000000000000
-0.150000 13000500.0000000000000
-0.450000 13000600.0000000000000
-0.750000 13000700.0000000000000
-1.050000 13000800.0000000000000
-1.350000 13000900.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/vx.zl b/CarpetAttic/Cart3dTest/test/axial-xz/vx.zl
index 66a6adbfe..bff9a8e61 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/vx.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/vx.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::vx z (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 11000500
+0 0 0 0 0 0 5 1 11000501
+0 0 0 0 0 0 5 2 11000502
+0 0 0 0 0 0 5 3 11000503
+0 0 0 0 0 0 5 4 11000504
+0 0 0 0 0 0 5 5 11000505
+0 0 0 0 0 0 5 6 11000506
+0 0 0 0 0 0 5 7 11000507
+0 0 0 0 0 0 5 8 11000508
+0 0 0 0 0 0 5 9 11000509
+0 0 0 0 0 0 5 10 11000510
+0 0 0 0 0 0 5 11 11000511
-"Time = 0.000000
--0.450000 11000400.0000000000000
--0.150000 11000401.0000000000000
-0.150000 11000402.0000000000000
-0.450000 11000403.0000000000000
-0.750000 11000404.0000000000000
-1.050000 11000405.0000000000000
-1.350000 11000406.0000000000000
-1.650000 11000407.0000000000000
-1.950000 11000408.0000000000000
-2.250000 11000409.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 13010502
+1 0 0 0 0 0 5 1 13000502
+1 0 0 0 0 0 5 2 11000502
+1 0 0 0 0 0 5 3 11000503
+1 0 0 0 0 0 5 4 11000504
+1 0 0 0 0 0 5 5 11000505
+1 0 0 0 0 0 5 6 11000506
+1 0 0 0 0 0 5 7 11000507
+1 0 0 0 0 0 5 8 11000508
+1 0 0 0 0 0 5 9 11000509
+1 0 0 0 0 0 5 10 11000510
+1 0 0 0 0 0 5 11 11000511
-"Time = 1.000000
--0.450000 13010400.0000000000000
--0.150000 13000400.0000000000000
-0.150000 11000402.0000000000000
-0.450000 11000403.0000000000000
-0.750000 11000404.0000000000000
-1.050000 11000405.0000000000000
-1.350000 11000406.0000000000000
-1.650000 11000407.0000000000000
-1.950000 11000408.0000000000000
-2.250000 11000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/vy.xl b/CarpetAttic/Cart3dTest/test/axial-xz/vy.xl
index aae9b790a..580b2bca5 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/vy.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/vy.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::vy x (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 12000502
+0 0 0 0 0 1 5 2 12010502
+0 0 0 0 0 2 5 2 12020502
+0 0 0 0 0 3 5 2 12030502
+0 0 0 0 0 4 5 2 12040502
+0 0 0 0 0 5 5 2 12050502
+0 0 0 0 0 6 5 2 12060502
+0 0 0 0 0 7 5 2 12070502
+0 0 0 0 0 8 5 2 12080502
+0 0 0 0 0 9 5 2 12090502
-"Time = 0.000000
-0.150000 12000401.0000000000000
-0.450000 12010401.0000000000000
-0.750000 12020401.0000000000000
-1.050000 12030401.0000000000000
-1.350000 12040401.0000000000000
-1.650000 12050401.0000000000000
-1.950000 12060401.0000000000000
-2.250000 12070401.0000000000000
-2.550000 12080401.0000000000000
-2.850000 12090401.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 12000502
+1 0 0 0 0 1 5 2 12010502
+1 0 0 0 0 2 5 2 12020502
+1 0 0 0 0 3 5 2 12030502
+1 0 0 0 0 4 5 2 12040502
+1 0 0 0 0 5 5 2 12050502
+1 0 0 0 0 6 5 2 12060502
+1 0 0 0 0 7 5 2 12070502
+1 0 0 0 0 8 5 2 12080502
+1 0 0 0 0 9 5 2 12090502
-"Time = 1.000000
-0.150000 12000400.0000000000000
-0.450000 12000401.0000000000000
-0.750000 12000402.0000000000000
-1.050000 12000403.0000000000000
-1.350000 12000404.0000000000000
-1.650000 12000405.0000000000000
-1.950000 12000406.0000000000000
-2.250000 12000407.0000000000000
-2.550000 12000408.0000000000000
-2.850000 12000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/vy.yl b/CarpetAttic/Cart3dTest/test/axial-xz/vy.yl
index be4748c5c..d2fb253b3 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/vy.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/vy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy y (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 12000002
+0 0 0 0 0 0 1 2 12000102
+0 0 0 0 0 0 2 2 12000202
+0 0 0 0 0 0 3 2 12000302
+0 0 0 0 0 0 4 2 12000402
+0 0 0 0 0 0 5 2 12000502
+0 0 0 0 0 0 6 2 12000602
+0 0 0 0 0 0 7 2 12000702
+0 0 0 0 0 0 8 2 12000802
+0 0 0 0 0 0 9 2 12000902
+0 0 0 0 0 0 10 2 12001002
-"Time = 0.000000
--1.350000 12000001.0000000000000
--1.050000 12000101.0000000000000
--0.750000 12000201.0000000000000
--0.450000 12000301.0000000000000
--0.150000 12000401.0000000000000
-0.150000 12000501.0000000000000
-0.450000 12000601.0000000000000
-0.750000 12000701.0000000000000
-1.050000 12000801.0000000000000
-1.350000 12000901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 12000002
+1 0 0 0 0 0 1 2 12000102
+1 0 0 0 0 0 2 2 12000202
+1 0 0 0 0 0 3 2 12000302
+1 0 0 0 0 0 4 2 12000402
+1 0 0 0 0 0 5 2 12000502
+1 0 0 0 0 0 6 2 12000602
+1 0 0 0 0 0 7 2 12000702
+1 0 0 0 0 0 8 2 12000802
+1 0 0 0 0 0 9 2 12000902
+1 0 0 0 0 0 10 2 12001002
-"Time = 1.000000
--1.350000 12000000.0000000000000
--1.050000 12000100.0000000000000
--0.750000 12000200.0000000000000
--0.450000 12000300.0000000000000
--0.150000 12000400.0000000000000
-0.150000 12000500.0000000000000
-0.450000 12000600.0000000000000
-0.750000 12000700.0000000000000
-1.050000 12000800.0000000000000
-1.350000 12000900.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/vy.zl b/CarpetAttic/Cart3dTest/test/axial-xz/vy.zl
index 2363559a6..489b12467 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/vy.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/vy.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::vy z (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 12000500
+0 0 0 0 0 0 5 1 12000501
+0 0 0 0 0 0 5 2 12000502
+0 0 0 0 0 0 5 3 12000503
+0 0 0 0 0 0 5 4 12000504
+0 0 0 0 0 0 5 5 12000505
+0 0 0 0 0 0 5 6 12000506
+0 0 0 0 0 0 5 7 12000507
+0 0 0 0 0 0 5 8 12000508
+0 0 0 0 0 0 5 9 12000509
+0 0 0 0 0 0 5 10 12000510
+0 0 0 0 0 0 5 11 12000511
-"Time = 0.000000
--0.450000 12000400.0000000000000
--0.150000 12000401.0000000000000
-0.150000 12000402.0000000000000
-0.450000 12000403.0000000000000
-0.750000 12000404.0000000000000
-1.050000 12000405.0000000000000
-1.350000 12000406.0000000000000
-1.650000 12000407.0000000000000
-1.950000 12000408.0000000000000
-2.250000 12000409.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 12010502
+1 0 0 0 0 0 5 1 12000502
+1 0 0 0 0 0 5 2 12000502
+1 0 0 0 0 0 5 3 12000503
+1 0 0 0 0 0 5 4 12000504
+1 0 0 0 0 0 5 5 12000505
+1 0 0 0 0 0 5 6 12000506
+1 0 0 0 0 0 5 7 12000507
+1 0 0 0 0 0 5 8 12000508
+1 0 0 0 0 0 5 9 12000509
+1 0 0 0 0 0 5 10 12000510
+1 0 0 0 0 0 5 11 12000511
-"Time = 1.000000
--0.450000 12010400.0000000000000
--0.150000 12000400.0000000000000
-0.150000 12000402.0000000000000
-0.450000 12000403.0000000000000
-0.750000 12000404.0000000000000
-1.050000 12000405.0000000000000
-1.350000 12000406.0000000000000
-1.650000 12000407.0000000000000
-1.950000 12000408.0000000000000
-2.250000 12000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/vz.xl b/CarpetAttic/Cart3dTest/test/axial-xz/vz.xl
index 92a338502..8ad842e74 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/vz.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/vz.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::vz x (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 13000502
+0 0 0 0 0 1 5 2 13010502
+0 0 0 0 0 2 5 2 13020502
+0 0 0 0 0 3 5 2 13030502
+0 0 0 0 0 4 5 2 13040502
+0 0 0 0 0 5 5 2 13050502
+0 0 0 0 0 6 5 2 13060502
+0 0 0 0 0 7 5 2 13070502
+0 0 0 0 0 8 5 2 13080502
+0 0 0 0 0 9 5 2 13090502
-"Time = 0.000000
-0.150000 13000401.0000000000000
-0.450000 13010401.0000000000000
-0.750000 13020401.0000000000000
-1.050000 13030401.0000000000000
-1.350000 13040401.0000000000000
-1.650000 13050401.0000000000000
-1.950000 13060401.0000000000000
-2.250000 13070401.0000000000000
-2.550000 13080401.0000000000000
-2.850000 13090401.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 13000502
+1 0 0 0 0 1 5 2 13010502
+1 0 0 0 0 2 5 2 13020502
+1 0 0 0 0 3 5 2 13030502
+1 0 0 0 0 4 5 2 13040502
+1 0 0 0 0 5 5 2 13050502
+1 0 0 0 0 6 5 2 13060502
+1 0 0 0 0 7 5 2 13070502
+1 0 0 0 0 8 5 2 13080502
+1 0 0 0 0 9 5 2 13090502
-"Time = 1.000000
-0.150000 -13010400.0000000000000
-0.450000 -13000400.0000000000000
-0.750000 -11000402.0000000000000
-1.050000 -11000403.0000000000000
-1.350000 -11000404.0000000000000
-1.650000 -11000405.0000000000000
-1.950000 -11000406.0000000000000
-2.250000 -11000407.0000000000000
-2.550000 -11000408.0000000000000
-2.850000 -11000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/vz.yl b/CarpetAttic/Cart3dTest/test/axial-xz/vz.yl
index fda3dbdbb..d32d9dac5 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/vz.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/vz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz y (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 13000002
+0 0 0 0 0 0 1 2 13000102
+0 0 0 0 0 0 2 2 13000202
+0 0 0 0 0 0 3 2 13000302
+0 0 0 0 0 0 4 2 13000402
+0 0 0 0 0 0 5 2 13000502
+0 0 0 0 0 0 6 2 13000602
+0 0 0 0 0 0 7 2 13000702
+0 0 0 0 0 0 8 2 13000802
+0 0 0 0 0 0 9 2 13000902
+0 0 0 0 0 0 10 2 13001002
-"Time = 0.000000
--1.350000 13000001.0000000000000
--1.050000 13000101.0000000000000
--0.750000 13000201.0000000000000
--0.450000 13000301.0000000000000
--0.150000 13000401.0000000000000
-0.150000 13000501.0000000000000
-0.450000 13000601.0000000000000
-0.750000 13000701.0000000000000
-1.050000 13000801.0000000000000
-1.350000 13000901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 13000002
+1 0 0 0 0 0 1 2 13000102
+1 0 0 0 0 0 2 2 13000202
+1 0 0 0 0 0 3 2 13000302
+1 0 0 0 0 0 4 2 13000402
+1 0 0 0 0 0 5 2 13000502
+1 0 0 0 0 0 6 2 13000602
+1 0 0 0 0 0 7 2 13000702
+1 0 0 0 0 0 8 2 13000802
+1 0 0 0 0 0 9 2 13000902
+1 0 0 0 0 0 10 2 13001002
-"Time = 1.000000
--1.350000 -13010000.0000000000000
--1.050000 -13010100.0000000000000
--0.750000 -13010200.0000000000000
--0.450000 -13010300.0000000000000
--0.150000 -13010400.0000000000000
-0.150000 -13010500.0000000000000
-0.450000 -13010600.0000000000000
-0.750000 -13010700.0000000000000
-1.050000 -13010800.0000000000000
-1.350000 -13010900.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-xz/vz.zl b/CarpetAttic/Cart3dTest/test/axial-xz/vz.zl
index 67ab4d525..e01f4b914 100644
--- a/CarpetAttic/Cart3dTest/test/axial-xz/vz.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-xz/vz.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::vz z (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 13000500
+0 0 0 0 0 0 5 1 13000501
+0 0 0 0 0 0 5 2 13000502
+0 0 0 0 0 0 5 3 13000503
+0 0 0 0 0 0 5 4 13000504
+0 0 0 0 0 0 5 5 13000505
+0 0 0 0 0 0 5 6 13000506
+0 0 0 0 0 0 5 7 13000507
+0 0 0 0 0 0 5 8 13000508
+0 0 0 0 0 0 5 9 13000509
+0 0 0 0 0 0 5 10 13000510
+0 0 0 0 0 0 5 11 13000511
-"Time = 0.000000
--0.450000 13000400.0000000000000
--0.150000 13000401.0000000000000
-0.150000 13000402.0000000000000
-0.450000 13000403.0000000000000
-0.750000 13000404.0000000000000
-1.050000 13000405.0000000000000
-1.350000 13000406.0000000000000
-1.650000 13000407.0000000000000
-1.950000 13000408.0000000000000
-2.250000 13000409.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 -11010502
+1 0 0 0 0 0 5 1 -11000502
+1 0 0 0 0 0 5 2 13000502
+1 0 0 0 0 0 5 3 13000503
+1 0 0 0 0 0 5 4 13000504
+1 0 0 0 0 0 5 5 13000505
+1 0 0 0 0 0 5 6 13000506
+1 0 0 0 0 0 5 7 13000507
+1 0 0 0 0 0 5 8 13000508
+1 0 0 0 0 0 5 9 13000509
+1 0 0 0 0 0 5 10 13000510
+1 0 0 0 0 0 5 11 13000511
-"Time = 1.000000
--0.450000 -13010401.0000000000000
--0.150000 -13010400.0000000000000
-0.150000 13000402.0000000000000
-0.450000 13000403.0000000000000
-0.750000 13000404.0000000000000
-1.050000 13000405.0000000000000
-1.350000 13000406.0000000000000
-1.650000 13000407.0000000000000
-1.950000 13000408.0000000000000
-2.250000 13000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/ax.xl b/CarpetAttic/Cart3dTest/test/axial-yz/ax.xl
index 5ddab3053..507bf50db 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/ax.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/ax.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::ax x (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 31000102
+0 0 0 0 0 1 1 2 31010102
+0 0 0 0 0 2 1 2 31020102
+0 0 0 0 0 3 1 2 31030102
+0 0 0 0 0 4 1 2 31040102
+0 0 0 0 0 5 1 2 31050102
+0 0 0 0 0 6 1 2 31060102
+0 0 0 0 0 7 1 2 31070102
+0 0 0 0 0 8 1 2 31080102
+0 0 0 0 0 9 1 2 31090102
-"Time = 0.000000
--1.350000 31000101.0000000000000
--1.050000 31010101.0000000000000
--0.750000 31020101.0000000000000
--0.450000 31030101.0000000000000
--0.150000 31040101.0000000000000
-0.150000 31050101.0000000000000
-0.450000 31060101.0000000000000
-0.750000 31070101.0000000000000
-1.050000 31080101.0000000000000
-1.350000 31090101.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 31000102
+1 0 0 0 0 1 1 2 31010102
+1 0 0 0 0 2 1 2 31020102
+1 0 0 0 0 3 1 2 31030102
+1 0 0 0 0 4 1 2 31040102
+1 0 0 0 0 5 1 2 31050102
+1 0 0 0 0 6 1 2 31060102
+1 0 0 0 0 7 1 2 31070102
+1 0 0 0 0 8 1 2 31080102
+1 0 0 0 0 9 1 2 31090102
-"Time = 1.000000
--1.350000 31000101.0000000000000
--1.050000 31010101.0000000000000
--0.750000 31020101.0000000000000
--0.450000 31030101.0000000000000
--0.150000 31040101.0000000000000
-0.150000 31050101.0000000000000
-0.450000 31060101.0000000000000
-0.750000 31070101.0000000000000
-1.050000 31080101.0000000000000
-1.350000 31090101.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/ax.yl b/CarpetAttic/Cart3dTest/test/axial-yz/ax.yl
index eb8120152..8f8c6dabe 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/ax.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/ax.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax y (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 31050002
+0 0 0 0 0 5 1 2 31050102
+0 0 0 0 0 5 2 2 31050202
+0 0 0 0 0 5 3 2 31050302
+0 0 0 0 0 5 4 2 31050402
+0 0 0 0 0 5 5 2 31050502
+0 0 0 0 0 5 6 2 31050602
+0 0 0 0 0 5 7 2 31050702
+0 0 0 0 0 5 8 2 31050802
+0 0 0 0 0 5 9 2 31050902
+0 0 0 0 0 5 10 2 31051002
-"Time = 0.000000
--0.150000 31040001.0000000000000
-0.150000 31040101.0000000000000
-0.450000 31040201.0000000000000
-0.750000 31040301.0000000000000
-1.050000 31040401.0000000000000
-1.350000 31040501.0000000000000
-1.650000 31040601.0000000000000
-1.950000 31040701.0000000000000
-2.250000 31040801.0000000000000
-2.550000 31040901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 31050102
+1 0 0 0 0 5 1 2 31050102
+1 0 0 0 0 5 2 2 31050202
+1 0 0 0 0 5 3 2 31050302
+1 0 0 0 0 5 4 2 31050402
+1 0 0 0 0 5 5 2 31050502
+1 0 0 0 0 5 6 2 31050602
+1 0 0 0 0 5 7 2 31050702
+1 0 0 0 0 5 8 2 31050802
+1 0 0 0 0 5 9 2 31050902
+1 0 0 0 0 5 10 2 31051002
-"Time = 1.000000
--0.150000 31040100.0000000000000
-0.150000 31040101.0000000000000
-0.450000 31040102.0000000000000
-0.750000 31040103.0000000000000
-1.050000 31040104.0000000000000
-1.350000 31040105.0000000000000
-1.650000 31040106.0000000000000
-1.950000 31040107.0000000000000
-2.250000 31040108.0000000000000
-2.550000 31040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/ax.zl b/CarpetAttic/Cart3dTest/test/axial-yz/ax.zl
index 301f7cb05..91d0ac9b8 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/ax.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/ax.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::ax z (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 31050100
+0 0 0 0 0 5 1 1 31050101
+0 0 0 0 0 5 1 2 31050102
+0 0 0 0 0 5 1 3 31050103
+0 0 0 0 0 5 1 4 31050104
+0 0 0 0 0 5 1 5 31050105
+0 0 0 0 0 5 1 6 31050106
+0 0 0 0 0 5 1 7 31050107
+0 0 0 0 0 5 1 8 31050108
+0 0 0 0 0 5 1 9 31050109
+0 0 0 0 0 5 1 10 31050110
+0 0 0 0 0 5 1 11 31050111
-"Time = 0.000000
--0.450000 31040100.0000000000000
--0.150000 31040101.0000000000000
-0.150000 31040102.0000000000000
-0.450000 31040103.0000000000000
-0.750000 31040104.0000000000000
-1.050000 31040105.0000000000000
-1.350000 31040106.0000000000000
-1.650000 31040107.0000000000000
-1.950000 31040108.0000000000000
-2.250000 31040109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 31050202
+1 0 0 0 0 5 1 1 31050102
+1 0 0 0 0 5 1 2 31050102
+1 0 0 0 0 5 1 3 31050103
+1 0 0 0 0 5 1 4 31050104
+1 0 0 0 0 5 1 5 31050105
+1 0 0 0 0 5 1 6 31050106
+1 0 0 0 0 5 1 7 31050107
+1 0 0 0 0 5 1 8 31050108
+1 0 0 0 0 5 1 9 31050109
+1 0 0 0 0 5 1 10 31050110
+1 0 0 0 0 5 1 11 31050111
-"Time = 1.000000
--0.450000 31040201.0000000000000
--0.150000 31040101.0000000000000
-0.150000 31040102.0000000000000
-0.450000 31040103.0000000000000
-0.750000 31040104.0000000000000
-1.050000 31040105.0000000000000
-1.350000 31040106.0000000000000
-1.650000 31040107.0000000000000
-1.950000 31040108.0000000000000
-2.250000 31040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/ay.xl b/CarpetAttic/Cart3dTest/test/axial-yz/ay.xl
index 26ad0848c..677841993 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/ay.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/ay.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::ay x (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 32000102
+0 0 0 0 0 1 1 2 32010102
+0 0 0 0 0 2 1 2 32020102
+0 0 0 0 0 3 1 2 32030102
+0 0 0 0 0 4 1 2 32040102
+0 0 0 0 0 5 1 2 32050102
+0 0 0 0 0 6 1 2 32060102
+0 0 0 0 0 7 1 2 32070102
+0 0 0 0 0 8 1 2 32080102
+0 0 0 0 0 9 1 2 32090102
-"Time = 0.000000
--1.350000 32000101.0000000000000
--1.050000 32010101.0000000000000
--0.750000 32020101.0000000000000
--0.450000 32030101.0000000000000
--0.150000 32040101.0000000000000
-0.150000 32050101.0000000000000
-0.450000 32060101.0000000000000
-0.750000 32070101.0000000000000
-1.050000 32080101.0000000000000
-1.350000 32090101.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 32000102
+1 0 0 0 0 1 1 2 32010102
+1 0 0 0 0 2 1 2 32020102
+1 0 0 0 0 3 1 2 32030102
+1 0 0 0 0 4 1 2 32040102
+1 0 0 0 0 5 1 2 32050102
+1 0 0 0 0 6 1 2 32060102
+1 0 0 0 0 7 1 2 32070102
+1 0 0 0 0 8 1 2 32080102
+1 0 0 0 0 9 1 2 32090102
-"Time = 1.000000
--1.350000 -33000101.0000000000000
--1.050000 -33010101.0000000000000
--0.750000 -33020101.0000000000000
--0.450000 -33030101.0000000000000
--0.150000 -33040101.0000000000000
-0.150000 -33050101.0000000000000
-0.450000 -33060101.0000000000000
-0.750000 -33070101.0000000000000
-1.050000 -33080101.0000000000000
-1.350000 -33090101.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/ay.yl b/CarpetAttic/Cart3dTest/test/axial-yz/ay.yl
index 15f3d2396..ba32ae56c 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/ay.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/ay.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay y (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 32050002
+0 0 0 0 0 5 1 2 32050102
+0 0 0 0 0 5 2 2 32050202
+0 0 0 0 0 5 3 2 32050302
+0 0 0 0 0 5 4 2 32050402
+0 0 0 0 0 5 5 2 32050502
+0 0 0 0 0 5 6 2 32050602
+0 0 0 0 0 5 7 2 32050702
+0 0 0 0 0 5 8 2 32050802
+0 0 0 0 0 5 9 2 32050902
+0 0 0 0 0 5 10 2 32051002
-"Time = 0.000000
--0.150000 32040001.0000000000000
-0.150000 32040101.0000000000000
-0.450000 32040201.0000000000000
-0.750000 32040301.0000000000000
-1.050000 32040401.0000000000000
-1.350000 32040501.0000000000000
-1.650000 32040601.0000000000000
-1.950000 32040701.0000000000000
-2.250000 32040801.0000000000000
-2.550000 32040901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 33050102
+1 0 0 0 0 5 1 2 32050102
+1 0 0 0 0 5 2 2 32050202
+1 0 0 0 0 5 3 2 32050302
+1 0 0 0 0 5 4 2 32050402
+1 0 0 0 0 5 5 2 32050502
+1 0 0 0 0 5 6 2 32050602
+1 0 0 0 0 5 7 2 32050702
+1 0 0 0 0 5 8 2 32050802
+1 0 0 0 0 5 9 2 32050902
+1 0 0 0 0 5 10 2 32051002
-"Time = 1.000000
--0.150000 -33040100.0000000000000
-0.150000 -33040101.0000000000000
-0.450000 -33040102.0000000000000
-0.750000 -33040103.0000000000000
-1.050000 -33040104.0000000000000
-1.350000 -33040105.0000000000000
-1.650000 -33040106.0000000000000
-1.950000 -33040107.0000000000000
-2.250000 -33040108.0000000000000
-2.550000 -33040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/ay.zl b/CarpetAttic/Cart3dTest/test/axial-yz/ay.zl
index 8a3f3f83e..c401ceb75 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/ay.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/ay.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::ay z (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 32050100
+0 0 0 0 0 5 1 1 32050101
+0 0 0 0 0 5 1 2 32050102
+0 0 0 0 0 5 1 3 32050103
+0 0 0 0 0 5 1 4 32050104
+0 0 0 0 0 5 1 5 32050105
+0 0 0 0 0 5 1 6 32050106
+0 0 0 0 0 5 1 7 32050107
+0 0 0 0 0 5 1 8 32050108
+0 0 0 0 0 5 1 9 32050109
+0 0 0 0 0 5 1 10 32050110
+0 0 0 0 0 5 1 11 32050111
-"Time = 0.000000
--0.450000 32040100.0000000000000
--0.150000 32040101.0000000000000
-0.150000 32040102.0000000000000
-0.450000 32040103.0000000000000
-0.750000 32040104.0000000000000
-1.050000 32040105.0000000000000
-1.350000 32040106.0000000000000
-1.650000 32040107.0000000000000
-1.950000 32040108.0000000000000
-2.250000 32040109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 -33050202
+1 0 0 0 0 5 1 1 -33050102
+1 0 0 0 0 5 1 2 32050102
+1 0 0 0 0 5 1 3 32050103
+1 0 0 0 0 5 1 4 32050104
+1 0 0 0 0 5 1 5 32050105
+1 0 0 0 0 5 1 6 32050106
+1 0 0 0 0 5 1 7 32050107
+1 0 0 0 0 5 1 8 32050108
+1 0 0 0 0 5 1 9 32050109
+1 0 0 0 0 5 1 10 32050110
+1 0 0 0 0 5 1 11 32050111
-"Time = 1.000000
--0.450000 -33040201.0000000000000
--0.150000 -33040101.0000000000000
-0.150000 32040102.0000000000000
-0.450000 32040103.0000000000000
-0.750000 32040104.0000000000000
-1.050000 32040105.0000000000000
-1.350000 32040106.0000000000000
-1.650000 32040107.0000000000000
-1.950000 32040108.0000000000000
-2.250000 32040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/az.xl b/CarpetAttic/Cart3dTest/test/axial-yz/az.xl
index b1f97bf0a..028c08189 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/az.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/az.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::az x (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 33000102
+0 0 0 0 0 1 1 2 33010102
+0 0 0 0 0 2 1 2 33020102
+0 0 0 0 0 3 1 2 33030102
+0 0 0 0 0 4 1 2 33040102
+0 0 0 0 0 5 1 2 33050102
+0 0 0 0 0 6 1 2 33060102
+0 0 0 0 0 7 1 2 33070102
+0 0 0 0 0 8 1 2 33080102
+0 0 0 0 0 9 1 2 33090102
-"Time = 0.000000
--1.350000 33000101.0000000000000
--1.050000 33010101.0000000000000
--0.750000 33020101.0000000000000
--0.450000 33030101.0000000000000
--0.150000 33040101.0000000000000
-0.150000 33050101.0000000000000
-0.450000 33060101.0000000000000
-0.750000 33070101.0000000000000
-1.050000 33080101.0000000000000
-1.350000 33090101.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 33000102
+1 0 0 0 0 1 1 2 33010102
+1 0 0 0 0 2 1 2 33020102
+1 0 0 0 0 3 1 2 33030102
+1 0 0 0 0 4 1 2 33040102
+1 0 0 0 0 5 1 2 33050102
+1 0 0 0 0 6 1 2 33060102
+1 0 0 0 0 7 1 2 33070102
+1 0 0 0 0 8 1 2 33080102
+1 0 0 0 0 9 1 2 33090102
-"Time = 1.000000
--1.350000 -33000101.0000000000000
--1.050000 -33010101.0000000000000
--0.750000 -33020101.0000000000000
--0.450000 -33030101.0000000000000
--0.150000 -33040101.0000000000000
-0.150000 -33050101.0000000000000
-0.450000 -33060101.0000000000000
-0.750000 -33070101.0000000000000
-1.050000 -33080101.0000000000000
-1.350000 -33090101.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/az.yl b/CarpetAttic/Cart3dTest/test/axial-yz/az.yl
index 530251d25..425b92670 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/az.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/az.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::az y (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 33050002
+0 0 0 0 0 5 1 2 33050102
+0 0 0 0 0 5 2 2 33050202
+0 0 0 0 0 5 3 2 33050302
+0 0 0 0 0 5 4 2 33050402
+0 0 0 0 0 5 5 2 33050502
+0 0 0 0 0 5 6 2 33050602
+0 0 0 0 0 5 7 2 33050702
+0 0 0 0 0 5 8 2 33050802
+0 0 0 0 0 5 9 2 33050902
+0 0 0 0 0 5 10 2 33051002
-"Time = 0.000000
--0.150000 33040001.0000000000000
-0.150000 33040101.0000000000000
-0.450000 33040201.0000000000000
-0.750000 33040301.0000000000000
-1.050000 33040401.0000000000000
-1.350000 33040501.0000000000000
-1.650000 33040601.0000000000000
-1.950000 33040701.0000000000000
-2.250000 33040801.0000000000000
-2.550000 33040901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 -32050102
+1 0 0 0 0 5 1 2 33050102
+1 0 0 0 0 5 2 2 33050202
+1 0 0 0 0 5 3 2 33050302
+1 0 0 0 0 5 4 2 33050402
+1 0 0 0 0 5 5 2 33050502
+1 0 0 0 0 5 6 2 33050602
+1 0 0 0 0 5 7 2 33050702
+1 0 0 0 0 5 8 2 33050802
+1 0 0 0 0 5 9 2 33050902
+1 0 0 0 0 5 10 2 33051002
-"Time = 1.000000
--0.150000 -33040201.0000000000000
-0.150000 -33040101.0000000000000
-0.450000 32040102.0000000000000
-0.750000 32040103.0000000000000
-1.050000 32040104.0000000000000
-1.350000 32040105.0000000000000
-1.650000 32040106.0000000000000
-1.950000 32040107.0000000000000
-2.250000 32040108.0000000000000
-2.550000 32040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/az.zl b/CarpetAttic/Cart3dTest/test/axial-yz/az.zl
index 6ed0742da..43f186915 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/az.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/az.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::az z (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 33050100
+0 0 0 0 0 5 1 1 33050101
+0 0 0 0 0 5 1 2 33050102
+0 0 0 0 0 5 1 3 33050103
+0 0 0 0 0 5 1 4 33050104
+0 0 0 0 0 5 1 5 33050105
+0 0 0 0 0 5 1 6 33050106
+0 0 0 0 0 5 1 7 33050107
+0 0 0 0 0 5 1 8 33050108
+0 0 0 0 0 5 1 9 33050109
+0 0 0 0 0 5 1 10 33050110
+0 0 0 0 0 5 1 11 33050111
-"Time = 0.000000
--0.450000 33040100.0000000000000
--0.150000 33040101.0000000000000
-0.150000 33040102.0000000000000
-0.450000 33040103.0000000000000
-0.750000 33040104.0000000000000
-1.050000 33040105.0000000000000
-1.350000 33040106.0000000000000
-1.650000 33040107.0000000000000
-1.950000 33040108.0000000000000
-2.250000 33040109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 32050202
+1 0 0 0 0 5 1 1 32050102
+1 0 0 0 0 5 1 2 33050102
+1 0 0 0 0 5 1 3 33050103
+1 0 0 0 0 5 1 4 33050104
+1 0 0 0 0 5 1 5 33050105
+1 0 0 0 0 5 1 6 33050106
+1 0 0 0 0 5 1 7 33050107
+1 0 0 0 0 5 1 8 33050108
+1 0 0 0 0 5 1 9 33050109
+1 0 0 0 0 5 1 10 33050110
+1 0 0 0 0 5 1 11 33050111
-"Time = 1.000000
--0.450000 -33040102.0000000000000
--0.150000 -33040101.0000000000000
-0.150000 33040102.0000000000000
-0.450000 33040103.0000000000000
-0.750000 33040104.0000000000000
-1.050000 33040105.0000000000000
-1.350000 33040106.0000000000000
-1.650000 33040107.0000000000000
-1.950000 33040108.0000000000000
-2.250000 33040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_x.xl b/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_x.xl
index 33b36d0af..327f04fa8 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_x.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_x.xl
@@ -1,26 +1,32 @@
+# GRID::cart3d_x x (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 -1.35
+0 0 0 0 0 1 1 2 -1.05
+0 0 0 0 0 2 1 2 -0.75
+0 0 0 0 0 3 1 2 -0.45
+0 0 0 0 0 4 1 2 -0.15
+0 0 0 0 0 5 1 2 0.15
+0 0 0 0 0 6 1 2 0.45
+0 0 0 0 0 7 1 2 0.75
+0 0 0 0 0 8 1 2 1.05
+0 0 0 0 0 9 1 2 1.35
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 -1.35
+1 0 0 0 0 1 1 2 -1.05
+1 0 0 0 0 2 1 2 -0.75
+1 0 0 0 0 3 1 2 -0.45
+1 0 0 0 0 4 1 2 -0.15
+1 0 0 0 0 5 1 2 0.15
+1 0 0 0 0 6 1 2 0.45
+1 0 0 0 0 7 1 2 0.75
+1 0 0 0 0 8 1 2 1.05
+1 0 0 0 0 9 1 2 1.35
-"Time = 1.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_x.yl b/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_x.yl
index 46363bcfd..816ba8a4b 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_x.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_x.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x y (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 0.15
+0 0 0 0 0 5 1 2 0.15
+0 0 0 0 0 5 2 2 0.15
+0 0 0 0 0 5 3 2 0.15
+0 0 0 0 0 5 4 2 0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 5 6 2 0.15
+0 0 0 0 0 5 7 2 0.15
+0 0 0 0 0 5 8 2 0.15
+0 0 0 0 0 5 9 2 0.15
+0 0 0 0 0 5 10 2 0.15
-"Time = 0.000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 0.15
+1 0 0 0 0 5 1 2 0.15
+1 0 0 0 0 5 2 2 0.15
+1 0 0 0 0 5 3 2 0.15
+1 0 0 0 0 5 4 2 0.15
+1 0 0 0 0 5 5 2 0.15
+1 0 0 0 0 5 6 2 0.15
+1 0 0 0 0 5 7 2 0.15
+1 0 0 0 0 5 8 2 0.15
+1 0 0 0 0 5 9 2 0.15
+1 0 0 0 0 5 10 2 0.15
-"Time = 1.000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_x.zl b/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_x.zl
index e908f2032..16c0db8bb 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_x.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_x.zl
@@ -1,26 +1,36 @@
+# GRID::cart3d_x z (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 0.15
+0 0 0 0 0 5 1 1 0.15
+0 0 0 0 0 5 1 2 0.15
+0 0 0 0 0 5 1 3 0.15
+0 0 0 0 0 5 1 4 0.15
+0 0 0 0 0 5 1 5 0.15
+0 0 0 0 0 5 1 6 0.15
+0 0 0 0 0 5 1 7 0.15
+0 0 0 0 0 5 1 8 0.15
+0 0 0 0 0 5 1 9 0.15
+0 0 0 0 0 5 1 10 0.15
+0 0 0 0 0 5 1 11 0.15
-"Time = 0.000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 0.15
+1 0 0 0 0 5 1 1 0.15
+1 0 0 0 0 5 1 2 0.15
+1 0 0 0 0 5 1 3 0.15
+1 0 0 0 0 5 1 4 0.15
+1 0 0 0 0 5 1 5 0.15
+1 0 0 0 0 5 1 6 0.15
+1 0 0 0 0 5 1 7 0.15
+1 0 0 0 0 5 1 8 0.15
+1 0 0 0 0 5 1 9 0.15
+1 0 0 0 0 5 1 10 0.15
+1 0 0 0 0 5 1 11 0.15
-"Time = 1.000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_y.xl b/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_y.xl
index 9ec3cd5db..748f7f799 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_y.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_y.xl
@@ -1,26 +1,32 @@
+# GRID::cart3d_y x (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 0.15
+0 0 0 0 0 1 1 2 0.15
+0 0 0 0 0 2 1 2 0.15
+0 0 0 0 0 3 1 2 0.15
+0 0 0 0 0 4 1 2 0.15
+0 0 0 0 0 5 1 2 0.15
+0 0 0 0 0 6 1 2 0.15
+0 0 0 0 0 7 1 2 0.15
+0 0 0 0 0 8 1 2 0.15
+0 0 0 0 0 9 1 2 0.15
-"Time = 0.000000
--1.350000 0.1500000000000
--1.050000 0.1500000000000
--0.750000 0.1500000000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 0.15
+1 0 0 0 0 1 1 2 0.15
+1 0 0 0 0 2 1 2 0.15
+1 0 0 0 0 3 1 2 0.15
+1 0 0 0 0 4 1 2 0.15
+1 0 0 0 0 5 1 2 0.15
+1 0 0 0 0 6 1 2 0.15
+1 0 0 0 0 7 1 2 0.15
+1 0 0 0 0 8 1 2 0.15
+1 0 0 0 0 9 1 2 0.15
-"Time = 1.000000
--1.350000 0.1500000000000
--1.050000 0.1500000000000
--0.750000 0.1500000000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_y.yl b/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_y.yl
index b2abd0b7f..272e5b59d 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_y.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_y.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y y (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 -0.15
+0 0 0 0 0 5 1 2 0.15
+0 0 0 0 0 5 2 2 0.45
+0 0 0 0 0 5 3 2 0.75
+0 0 0 0 0 5 4 2 1.05
+0 0 0 0 0 5 5 2 1.35
+0 0 0 0 0 5 6 2 1.65
+0 0 0 0 0 5 7 2 1.95
+0 0 0 0 0 5 8 2 2.25
+0 0 0 0 0 5 9 2 2.55
+0 0 0 0 0 5 10 2 2.85
-"Time = 0.000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
-2.550000 2.5500000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 -0.15
+1 0 0 0 0 5 1 2 0.15
+1 0 0 0 0 5 2 2 0.45
+1 0 0 0 0 5 3 2 0.75
+1 0 0 0 0 5 4 2 1.05
+1 0 0 0 0 5 5 2 1.35
+1 0 0 0 0 5 6 2 1.65
+1 0 0 0 0 5 7 2 1.95
+1 0 0 0 0 5 8 2 2.25
+1 0 0 0 0 5 9 2 2.55
+1 0 0 0 0 5 10 2 2.85
-"Time = 1.000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
-2.550000 2.5500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_y.zl b/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_y.zl
index bb20362ce..89094fc1b 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_y.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_y.zl
@@ -1,26 +1,36 @@
+# GRID::cart3d_y z (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 0.15
+0 0 0 0 0 5 1 1 0.15
+0 0 0 0 0 5 1 2 0.15
+0 0 0 0 0 5 1 3 0.15
+0 0 0 0 0 5 1 4 0.15
+0 0 0 0 0 5 1 5 0.15
+0 0 0 0 0 5 1 6 0.15
+0 0 0 0 0 5 1 7 0.15
+0 0 0 0 0 5 1 8 0.15
+0 0 0 0 0 5 1 9 0.15
+0 0 0 0 0 5 1 10 0.15
+0 0 0 0 0 5 1 11 0.15
-"Time = 0.000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
-1.950000 0.1500000000000
-2.250000 0.1500000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 0.15
+1 0 0 0 0 5 1 1 0.15
+1 0 0 0 0 5 1 2 0.15
+1 0 0 0 0 5 1 3 0.15
+1 0 0 0 0 5 1 4 0.15
+1 0 0 0 0 5 1 5 0.15
+1 0 0 0 0 5 1 6 0.15
+1 0 0 0 0 5 1 7 0.15
+1 0 0 0 0 5 1 8 0.15
+1 0 0 0 0 5 1 9 0.15
+1 0 0 0 0 5 1 10 0.15
+1 0 0 0 0 5 1 11 0.15
-"Time = 1.000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
-1.950000 0.1500000000000
-2.250000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_z.xl b/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_z.xl
index 52b13d0ae..c30936d88 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_z.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_z.xl
@@ -1,26 +1,32 @@
+# GRID::cart3d_z x (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 0.15
+0 0 0 0 0 1 1 2 0.15
+0 0 0 0 0 2 1 2 0.15
+0 0 0 0 0 3 1 2 0.15
+0 0 0 0 0 4 1 2 0.15
+0 0 0 0 0 5 1 2 0.15
+0 0 0 0 0 6 1 2 0.15
+0 0 0 0 0 7 1 2 0.15
+0 0 0 0 0 8 1 2 0.15
+0 0 0 0 0 9 1 2 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 0.15
+1 0 0 0 0 1 1 2 0.15
+1 0 0 0 0 2 1 2 0.15
+1 0 0 0 0 3 1 2 0.15
+1 0 0 0 0 4 1 2 0.15
+1 0 0 0 0 5 1 2 0.15
+1 0 0 0 0 6 1 2 0.15
+1 0 0 0 0 7 1 2 0.15
+1 0 0 0 0 8 1 2 0.15
+1 0 0 0 0 9 1 2 0.15
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_z.yl b/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_z.yl
index 46363bcfd..80ad9f63b 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_z.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_z.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z y (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 0.15
+0 0 0 0 0 5 1 2 0.15
+0 0 0 0 0 5 2 2 0.15
+0 0 0 0 0 5 3 2 0.15
+0 0 0 0 0 5 4 2 0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 5 6 2 0.15
+0 0 0 0 0 5 7 2 0.15
+0 0 0 0 0 5 8 2 0.15
+0 0 0 0 0 5 9 2 0.15
+0 0 0 0 0 5 10 2 0.15
-"Time = 0.000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 0.15
+1 0 0 0 0 5 1 2 0.15
+1 0 0 0 0 5 2 2 0.15
+1 0 0 0 0 5 3 2 0.15
+1 0 0 0 0 5 4 2 0.15
+1 0 0 0 0 5 5 2 0.15
+1 0 0 0 0 5 6 2 0.15
+1 0 0 0 0 5 7 2 0.15
+1 0 0 0 0 5 8 2 0.15
+1 0 0 0 0 5 9 2 0.15
+1 0 0 0 0 5 10 2 0.15
-"Time = 1.000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_z.zl b/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_z.zl
index 20ba9f007..6354a141b 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_z.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/cart3d_z.zl
@@ -1,26 +1,36 @@
+# GRID::cart3d_z z (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 -0.45
+0 0 0 0 0 5 1 1 -0.15
+0 0 0 0 0 5 1 2 0.15
+0 0 0 0 0 5 1 3 0.45
+0 0 0 0 0 5 1 4 0.75
+0 0 0 0 0 5 1 5 1.05
+0 0 0 0 0 5 1 6 1.35
+0 0 0 0 0 5 1 7 1.65
+0 0 0 0 0 5 1 8 1.95
+0 0 0 0 0 5 1 9 2.25
+0 0 0 0 0 5 1 10 2.55
+0 0 0 0 0 5 1 11 2.85
-"Time = 0.000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 -0.45
+1 0 0 0 0 5 1 1 -0.15
+1 0 0 0 0 5 1 2 0.15
+1 0 0 0 0 5 1 3 0.45
+1 0 0 0 0 5 1 4 0.75
+1 0 0 0 0 5 1 5 1.05
+1 0 0 0 0 5 1 6 1.35
+1 0 0 0 0 5 1 7 1.65
+1 0 0 0 0 5 1 8 1.95
+1 0 0 0 0 5 1 9 2.25
+1 0 0 0 0 5 1 10 2.55
+1 0 0 0 0 5 1 11 2.85
-"Time = 1.000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/fxx.xl b/CarpetAttic/Cart3dTest/test/axial-yz/fxx.xl
index 913d95bed..18d0b5198 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/fxx.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/fxx.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::fxx x (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 41000102
+0 0 0 0 0 1 1 2 41010102
+0 0 0 0 0 2 1 2 41020102
+0 0 0 0 0 3 1 2 41030102
+0 0 0 0 0 4 1 2 41040102
+0 0 0 0 0 5 1 2 41050102
+0 0 0 0 0 6 1 2 41060102
+0 0 0 0 0 7 1 2 41070102
+0 0 0 0 0 8 1 2 41080102
+0 0 0 0 0 9 1 2 41090102
-"Time = 0.000000
--1.350000 41000101.0000000000000
--1.050000 41010101.0000000000000
--0.750000 41020101.0000000000000
--0.450000 41030101.0000000000000
--0.150000 41040101.0000000000000
-0.150000 41050101.0000000000000
-0.450000 41060101.0000000000000
-0.750000 41070101.0000000000000
-1.050000 41080101.0000000000000
-1.350000 41090101.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 41000102
+1 0 0 0 0 1 1 2 41010102
+1 0 0 0 0 2 1 2 41020102
+1 0 0 0 0 3 1 2 41030102
+1 0 0 0 0 4 1 2 41040102
+1 0 0 0 0 5 1 2 41050102
+1 0 0 0 0 6 1 2 41060102
+1 0 0 0 0 7 1 2 41070102
+1 0 0 0 0 8 1 2 41080102
+1 0 0 0 0 9 1 2 41090102
-"Time = 1.000000
--1.350000 41000101.0000000000000
--1.050000 41010101.0000000000000
--0.750000 41020101.0000000000000
--0.450000 41030101.0000000000000
--0.150000 41040101.0000000000000
-0.150000 41050101.0000000000000
-0.450000 41060101.0000000000000
-0.750000 41070101.0000000000000
-1.050000 41080101.0000000000000
-1.350000 41090101.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/fxx.yl b/CarpetAttic/Cart3dTest/test/axial-yz/fxx.yl
index 6a9f7a59b..d1dd6a24a 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/fxx.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/fxx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx y (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 41050002
+0 0 0 0 0 5 1 2 41050102
+0 0 0 0 0 5 2 2 41050202
+0 0 0 0 0 5 3 2 41050302
+0 0 0 0 0 5 4 2 41050402
+0 0 0 0 0 5 5 2 41050502
+0 0 0 0 0 5 6 2 41050602
+0 0 0 0 0 5 7 2 41050702
+0 0 0 0 0 5 8 2 41050802
+0 0 0 0 0 5 9 2 41050902
+0 0 0 0 0 5 10 2 41051002
-"Time = 0.000000
--0.150000 41040001.0000000000000
-0.150000 41040101.0000000000000
-0.450000 41040201.0000000000000
-0.750000 41040301.0000000000000
-1.050000 41040401.0000000000000
-1.350000 41040501.0000000000000
-1.650000 41040601.0000000000000
-1.950000 41040701.0000000000000
-2.250000 41040801.0000000000000
-2.550000 41040901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 41050102
+1 0 0 0 0 5 1 2 41050102
+1 0 0 0 0 5 2 2 41050202
+1 0 0 0 0 5 3 2 41050302
+1 0 0 0 0 5 4 2 41050402
+1 0 0 0 0 5 5 2 41050502
+1 0 0 0 0 5 6 2 41050602
+1 0 0 0 0 5 7 2 41050702
+1 0 0 0 0 5 8 2 41050802
+1 0 0 0 0 5 9 2 41050902
+1 0 0 0 0 5 10 2 41051002
-"Time = 1.000000
--0.150000 41040100.0000000000000
-0.150000 41040101.0000000000000
-0.450000 41040102.0000000000000
-0.750000 41040103.0000000000000
-1.050000 41040104.0000000000000
-1.350000 41040105.0000000000000
-1.650000 41040106.0000000000000
-1.950000 41040107.0000000000000
-2.250000 41040108.0000000000000
-2.550000 41040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/fxx.zl b/CarpetAttic/Cart3dTest/test/axial-yz/fxx.zl
index fb9537672..7081eaebd 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/fxx.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/fxx.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::fxx z (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 41050100
+0 0 0 0 0 5 1 1 41050101
+0 0 0 0 0 5 1 2 41050102
+0 0 0 0 0 5 1 3 41050103
+0 0 0 0 0 5 1 4 41050104
+0 0 0 0 0 5 1 5 41050105
+0 0 0 0 0 5 1 6 41050106
+0 0 0 0 0 5 1 7 41050107
+0 0 0 0 0 5 1 8 41050108
+0 0 0 0 0 5 1 9 41050109
+0 0 0 0 0 5 1 10 41050110
+0 0 0 0 0 5 1 11 41050111
-"Time = 0.000000
--0.450000 41040100.0000000000000
--0.150000 41040101.0000000000000
-0.150000 41040102.0000000000000
-0.450000 41040103.0000000000000
-0.750000 41040104.0000000000000
-1.050000 41040105.0000000000000
-1.350000 41040106.0000000000000
-1.650000 41040107.0000000000000
-1.950000 41040108.0000000000000
-2.250000 41040109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 41050202
+1 0 0 0 0 5 1 1 41050102
+1 0 0 0 0 5 1 2 41050102
+1 0 0 0 0 5 1 3 41050103
+1 0 0 0 0 5 1 4 41050104
+1 0 0 0 0 5 1 5 41050105
+1 0 0 0 0 5 1 6 41050106
+1 0 0 0 0 5 1 7 41050107
+1 0 0 0 0 5 1 8 41050108
+1 0 0 0 0 5 1 9 41050109
+1 0 0 0 0 5 1 10 41050110
+1 0 0 0 0 5 1 11 41050111
-"Time = 1.000000
--0.450000 41040201.0000000000000
--0.150000 41040101.0000000000000
-0.150000 41040102.0000000000000
-0.450000 41040103.0000000000000
-0.750000 41040104.0000000000000
-1.050000 41040105.0000000000000
-1.350000 41040106.0000000000000
-1.650000 41040107.0000000000000
-1.950000 41040108.0000000000000
-2.250000 41040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/fxy.xl b/CarpetAttic/Cart3dTest/test/axial-yz/fxy.xl
index cd12f77d5..61f5979cc 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/fxy.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/fxy.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::fxy x (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 42000102
+0 0 0 0 0 1 1 2 42010102
+0 0 0 0 0 2 1 2 42020102
+0 0 0 0 0 3 1 2 42030102
+0 0 0 0 0 4 1 2 42040102
+0 0 0 0 0 5 1 2 42050102
+0 0 0 0 0 6 1 2 42060102
+0 0 0 0 0 7 1 2 42070102
+0 0 0 0 0 8 1 2 42080102
+0 0 0 0 0 9 1 2 42090102
-"Time = 0.000000
--1.350000 42000101.0000000000000
--1.050000 42010101.0000000000000
--0.750000 42020101.0000000000000
--0.450000 42030101.0000000000000
--0.150000 42040101.0000000000000
-0.150000 42050101.0000000000000
-0.450000 42060101.0000000000000
-0.750000 42070101.0000000000000
-1.050000 42080101.0000000000000
-1.350000 42090101.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 42000102
+1 0 0 0 0 1 1 2 42010102
+1 0 0 0 0 2 1 2 42020102
+1 0 0 0 0 3 1 2 42030102
+1 0 0 0 0 4 1 2 42040102
+1 0 0 0 0 5 1 2 42050102
+1 0 0 0 0 6 1 2 42060102
+1 0 0 0 0 7 1 2 42070102
+1 0 0 0 0 8 1 2 42080102
+1 0 0 0 0 9 1 2 42090102
-"Time = 1.000000
--1.350000 43000101.0000000000000
--1.050000 43010101.0000000000000
--0.750000 43020101.0000000000000
--0.450000 43030101.0000000000000
--0.150000 43040101.0000000000000
-0.150000 43050101.0000000000000
-0.450000 43060101.0000000000000
-0.750000 43070101.0000000000000
-1.050000 43080101.0000000000000
-1.350000 43090101.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/fxy.yl b/CarpetAttic/Cart3dTest/test/axial-yz/fxy.yl
index bcdecb406..f37ee81a9 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/fxy.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/fxy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy y (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 42050002
+0 0 0 0 0 5 1 2 42050102
+0 0 0 0 0 5 2 2 42050202
+0 0 0 0 0 5 3 2 42050302
+0 0 0 0 0 5 4 2 42050402
+0 0 0 0 0 5 5 2 42050502
+0 0 0 0 0 5 6 2 42050602
+0 0 0 0 0 5 7 2 42050702
+0 0 0 0 0 5 8 2 42050802
+0 0 0 0 0 5 9 2 42050902
+0 0 0 0 0 5 10 2 42051002
-"Time = 0.000000
--0.150000 42040001.0000000000000
-0.150000 42040101.0000000000000
-0.450000 42040201.0000000000000
-0.750000 42040301.0000000000000
-1.050000 42040401.0000000000000
-1.350000 42040501.0000000000000
-1.650000 42040601.0000000000000
-1.950000 42040701.0000000000000
-2.250000 42040801.0000000000000
-2.550000 42040901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 -43050102
+1 0 0 0 0 5 1 2 42050102
+1 0 0 0 0 5 2 2 42050202
+1 0 0 0 0 5 3 2 42050302
+1 0 0 0 0 5 4 2 42050402
+1 0 0 0 0 5 5 2 42050502
+1 0 0 0 0 5 6 2 42050602
+1 0 0 0 0 5 7 2 42050702
+1 0 0 0 0 5 8 2 42050802
+1 0 0 0 0 5 9 2 42050902
+1 0 0 0 0 5 10 2 42051002
-"Time = 1.000000
--0.150000 43040100.0000000000000
-0.150000 43040101.0000000000000
-0.450000 43040102.0000000000000
-0.750000 43040103.0000000000000
-1.050000 43040104.0000000000000
-1.350000 43040105.0000000000000
-1.650000 43040106.0000000000000
-1.950000 43040107.0000000000000
-2.250000 43040108.0000000000000
-2.550000 43040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/fxy.zl b/CarpetAttic/Cart3dTest/test/axial-yz/fxy.zl
index 513b927dc..82fc62737 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/fxy.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/fxy.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::fxy z (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 42050100
+0 0 0 0 0 5 1 1 42050101
+0 0 0 0 0 5 1 2 42050102
+0 0 0 0 0 5 1 3 42050103
+0 0 0 0 0 5 1 4 42050104
+0 0 0 0 0 5 1 5 42050105
+0 0 0 0 0 5 1 6 42050106
+0 0 0 0 0 5 1 7 42050107
+0 0 0 0 0 5 1 8 42050108
+0 0 0 0 0 5 1 9 42050109
+0 0 0 0 0 5 1 10 42050110
+0 0 0 0 0 5 1 11 42050111
-"Time = 0.000000
--0.450000 42040100.0000000000000
--0.150000 42040101.0000000000000
-0.150000 42040102.0000000000000
-0.450000 42040103.0000000000000
-0.750000 42040104.0000000000000
-1.050000 42040105.0000000000000
-1.350000 42040106.0000000000000
-1.650000 42040107.0000000000000
-1.950000 42040108.0000000000000
-2.250000 42040109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 43050202
+1 0 0 0 0 5 1 1 43050102
+1 0 0 0 0 5 1 2 42050102
+1 0 0 0 0 5 1 3 42050103
+1 0 0 0 0 5 1 4 42050104
+1 0 0 0 0 5 1 5 42050105
+1 0 0 0 0 5 1 6 42050106
+1 0 0 0 0 5 1 7 42050107
+1 0 0 0 0 5 1 8 42050108
+1 0 0 0 0 5 1 9 42050109
+1 0 0 0 0 5 1 10 42050110
+1 0 0 0 0 5 1 11 42050111
-"Time = 1.000000
--0.450000 43040201.0000000000000
--0.150000 43040101.0000000000000
-0.150000 42040102.0000000000000
-0.450000 42040103.0000000000000
-0.750000 42040104.0000000000000
-1.050000 42040105.0000000000000
-1.350000 42040106.0000000000000
-1.650000 42040107.0000000000000
-1.950000 42040108.0000000000000
-2.250000 42040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/fxz.xl b/CarpetAttic/Cart3dTest/test/axial-yz/fxz.xl
index 21f1bb771..ee3b446f3 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/fxz.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/fxz.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::fxz x (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 43000102
+0 0 0 0 0 1 1 2 43010102
+0 0 0 0 0 2 1 2 43020102
+0 0 0 0 0 3 1 2 43030102
+0 0 0 0 0 4 1 2 43040102
+0 0 0 0 0 5 1 2 43050102
+0 0 0 0 0 6 1 2 43060102
+0 0 0 0 0 7 1 2 43070102
+0 0 0 0 0 8 1 2 43080102
+0 0 0 0 0 9 1 2 43090102
-"Time = 0.000000
--1.350000 43000101.0000000000000
--1.050000 43010101.0000000000000
--0.750000 43020101.0000000000000
--0.450000 43030101.0000000000000
--0.150000 43040101.0000000000000
-0.150000 43050101.0000000000000
-0.450000 43060101.0000000000000
-0.750000 43070101.0000000000000
-1.050000 43080101.0000000000000
-1.350000 43090101.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 43000102
+1 0 0 0 0 1 1 2 43010102
+1 0 0 0 0 2 1 2 43020102
+1 0 0 0 0 3 1 2 43030102
+1 0 0 0 0 4 1 2 43040102
+1 0 0 0 0 5 1 2 43050102
+1 0 0 0 0 6 1 2 43060102
+1 0 0 0 0 7 1 2 43070102
+1 0 0 0 0 8 1 2 43080102
+1 0 0 0 0 9 1 2 43090102
-"Time = 1.000000
--1.350000 -43000101.0000000000000
--1.050000 -43010101.0000000000000
--0.750000 -43020101.0000000000000
--0.450000 -43030101.0000000000000
--0.150000 -43040101.0000000000000
-0.150000 -43050101.0000000000000
-0.450000 -43060101.0000000000000
-0.750000 -43070101.0000000000000
-1.050000 -43080101.0000000000000
-1.350000 -43090101.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/fxz.yl b/CarpetAttic/Cart3dTest/test/axial-yz/fxz.yl
index 32bbc3b8b..563d2732a 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/fxz.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/fxz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz y (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 43050002
+0 0 0 0 0 5 1 2 43050102
+0 0 0 0 0 5 2 2 43050202
+0 0 0 0 0 5 3 2 43050302
+0 0 0 0 0 5 4 2 43050402
+0 0 0 0 0 5 5 2 43050502
+0 0 0 0 0 5 6 2 43050602
+0 0 0 0 0 5 7 2 43050702
+0 0 0 0 0 5 8 2 43050802
+0 0 0 0 0 5 9 2 43050902
+0 0 0 0 0 5 10 2 43051002
-"Time = 0.000000
--0.150000 43040001.0000000000000
-0.150000 43040101.0000000000000
-0.450000 43040201.0000000000000
-0.750000 43040301.0000000000000
-1.050000 43040401.0000000000000
-1.350000 43040501.0000000000000
-1.650000 43040601.0000000000000
-1.950000 43040701.0000000000000
-2.250000 43040801.0000000000000
-2.550000 43040901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 42050102
+1 0 0 0 0 5 1 2 43050102
+1 0 0 0 0 5 2 2 43050202
+1 0 0 0 0 5 3 2 43050302
+1 0 0 0 0 5 4 2 43050402
+1 0 0 0 0 5 5 2 43050502
+1 0 0 0 0 5 6 2 43050602
+1 0 0 0 0 5 7 2 43050702
+1 0 0 0 0 5 8 2 43050802
+1 0 0 0 0 5 9 2 43050902
+1 0 0 0 0 5 10 2 43051002
-"Time = 1.000000
--0.150000 -43040201.0000000000000
-0.150000 -43040101.0000000000000
-0.450000 -42040102.0000000000000
-0.750000 -42040103.0000000000000
-1.050000 -42040104.0000000000000
-1.350000 -42040105.0000000000000
-1.650000 -42040106.0000000000000
-1.950000 -42040107.0000000000000
-2.250000 -42040108.0000000000000
-2.550000 -42040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/fxz.zl b/CarpetAttic/Cart3dTest/test/axial-yz/fxz.zl
index 076defdee..c5b1c5e0f 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/fxz.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/fxz.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::fxz z (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 43050100
+0 0 0 0 0 5 1 1 43050101
+0 0 0 0 0 5 1 2 43050102
+0 0 0 0 0 5 1 3 43050103
+0 0 0 0 0 5 1 4 43050104
+0 0 0 0 0 5 1 5 43050105
+0 0 0 0 0 5 1 6 43050106
+0 0 0 0 0 5 1 7 43050107
+0 0 0 0 0 5 1 8 43050108
+0 0 0 0 0 5 1 9 43050109
+0 0 0 0 0 5 1 10 43050110
+0 0 0 0 0 5 1 11 43050111
-"Time = 0.000000
--0.450000 43040100.0000000000000
--0.150000 43040101.0000000000000
-0.150000 43040102.0000000000000
-0.450000 43040103.0000000000000
-0.750000 43040104.0000000000000
-1.050000 43040105.0000000000000
-1.350000 43040106.0000000000000
-1.650000 43040107.0000000000000
-1.950000 43040108.0000000000000
-2.250000 43040109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 -42050202
+1 0 0 0 0 5 1 1 -42050102
+1 0 0 0 0 5 1 2 43050102
+1 0 0 0 0 5 1 3 43050103
+1 0 0 0 0 5 1 4 43050104
+1 0 0 0 0 5 1 5 43050105
+1 0 0 0 0 5 1 6 43050106
+1 0 0 0 0 5 1 7 43050107
+1 0 0 0 0 5 1 8 43050108
+1 0 0 0 0 5 1 9 43050109
+1 0 0 0 0 5 1 10 43050110
+1 0 0 0 0 5 1 11 43050111
-"Time = 1.000000
--0.450000 -43040102.0000000000000
--0.150000 -43040101.0000000000000
-0.150000 43040102.0000000000000
-0.450000 43040103.0000000000000
-0.750000 43040104.0000000000000
-1.050000 43040105.0000000000000
-1.350000 43040106.0000000000000
-1.650000 43040107.0000000000000
-1.950000 43040108.0000000000000
-2.250000 43040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/fyx.xl b/CarpetAttic/Cart3dTest/test/axial-yz/fyx.xl
index 0c4f852e0..a19544aaf 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/fyx.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/fyx.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::fyx x (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 44000102
+0 0 0 0 0 1 1 2 44010102
+0 0 0 0 0 2 1 2 44020102
+0 0 0 0 0 3 1 2 44030102
+0 0 0 0 0 4 1 2 44040102
+0 0 0 0 0 5 1 2 44050102
+0 0 0 0 0 6 1 2 44060102
+0 0 0 0 0 7 1 2 44070102
+0 0 0 0 0 8 1 2 44080102
+0 0 0 0 0 9 1 2 44090102
-"Time = 0.000000
--1.350000 44000101.0000000000000
--1.050000 44010101.0000000000000
--0.750000 44020101.0000000000000
--0.450000 44030101.0000000000000
--0.150000 44040101.0000000000000
-0.150000 44050101.0000000000000
-0.450000 44060101.0000000000000
-0.750000 44070101.0000000000000
-1.050000 44080101.0000000000000
-1.350000 44090101.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 44000102
+1 0 0 0 0 1 1 2 44010102
+1 0 0 0 0 2 1 2 44020102
+1 0 0 0 0 3 1 2 44030102
+1 0 0 0 0 4 1 2 44040102
+1 0 0 0 0 5 1 2 44050102
+1 0 0 0 0 6 1 2 44060102
+1 0 0 0 0 7 1 2 44070102
+1 0 0 0 0 8 1 2 44080102
+1 0 0 0 0 9 1 2 44090102
-"Time = 1.000000
--1.350000 47000101.0000000000000
--1.050000 47010101.0000000000000
--0.750000 47020101.0000000000000
--0.450000 47030101.0000000000000
--0.150000 47040101.0000000000000
-0.150000 47050101.0000000000000
-0.450000 47060101.0000000000000
-0.750000 47070101.0000000000000
-1.050000 47080101.0000000000000
-1.350000 47090101.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/fyx.yl b/CarpetAttic/Cart3dTest/test/axial-yz/fyx.yl
index c1e9c9eab..34a6963e2 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/fyx.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/fyx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx y (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 44050002
+0 0 0 0 0 5 1 2 44050102
+0 0 0 0 0 5 2 2 44050202
+0 0 0 0 0 5 3 2 44050302
+0 0 0 0 0 5 4 2 44050402
+0 0 0 0 0 5 5 2 44050502
+0 0 0 0 0 5 6 2 44050602
+0 0 0 0 0 5 7 2 44050702
+0 0 0 0 0 5 8 2 44050802
+0 0 0 0 0 5 9 2 44050902
+0 0 0 0 0 5 10 2 44051002
-"Time = 0.000000
--0.150000 44040001.0000000000000
-0.150000 44040101.0000000000000
-0.450000 44040201.0000000000000
-0.750000 44040301.0000000000000
-1.050000 44040401.0000000000000
-1.350000 44040501.0000000000000
-1.650000 44040601.0000000000000
-1.950000 44040701.0000000000000
-2.250000 44040801.0000000000000
-2.550000 44040901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 -47050102
+1 0 0 0 0 5 1 2 44050102
+1 0 0 0 0 5 2 2 44050202
+1 0 0 0 0 5 3 2 44050302
+1 0 0 0 0 5 4 2 44050402
+1 0 0 0 0 5 5 2 44050502
+1 0 0 0 0 5 6 2 44050602
+1 0 0 0 0 5 7 2 44050702
+1 0 0 0 0 5 8 2 44050802
+1 0 0 0 0 5 9 2 44050902
+1 0 0 0 0 5 10 2 44051002
-"Time = 1.000000
--0.150000 47040100.0000000000000
-0.150000 47040101.0000000000000
-0.450000 47040102.0000000000000
-0.750000 47040103.0000000000000
-1.050000 47040104.0000000000000
-1.350000 47040105.0000000000000
-1.650000 47040106.0000000000000
-1.950000 47040107.0000000000000
-2.250000 47040108.0000000000000
-2.550000 47040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/fyx.zl b/CarpetAttic/Cart3dTest/test/axial-yz/fyx.zl
index 93177dd97..de00063f8 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/fyx.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/fyx.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::fyx z (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 44050100
+0 0 0 0 0 5 1 1 44050101
+0 0 0 0 0 5 1 2 44050102
+0 0 0 0 0 5 1 3 44050103
+0 0 0 0 0 5 1 4 44050104
+0 0 0 0 0 5 1 5 44050105
+0 0 0 0 0 5 1 6 44050106
+0 0 0 0 0 5 1 7 44050107
+0 0 0 0 0 5 1 8 44050108
+0 0 0 0 0 5 1 9 44050109
+0 0 0 0 0 5 1 10 44050110
+0 0 0 0 0 5 1 11 44050111
-"Time = 0.000000
--0.450000 44040100.0000000000000
--0.150000 44040101.0000000000000
-0.150000 44040102.0000000000000
-0.450000 44040103.0000000000000
-0.750000 44040104.0000000000000
-1.050000 44040105.0000000000000
-1.350000 44040106.0000000000000
-1.650000 44040107.0000000000000
-1.950000 44040108.0000000000000
-2.250000 44040109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 47050202
+1 0 0 0 0 5 1 1 47050102
+1 0 0 0 0 5 1 2 44050102
+1 0 0 0 0 5 1 3 44050103
+1 0 0 0 0 5 1 4 44050104
+1 0 0 0 0 5 1 5 44050105
+1 0 0 0 0 5 1 6 44050106
+1 0 0 0 0 5 1 7 44050107
+1 0 0 0 0 5 1 8 44050108
+1 0 0 0 0 5 1 9 44050109
+1 0 0 0 0 5 1 10 44050110
+1 0 0 0 0 5 1 11 44050111
-"Time = 1.000000
--0.450000 47040201.0000000000000
--0.150000 47040101.0000000000000
-0.150000 44040102.0000000000000
-0.450000 44040103.0000000000000
-0.750000 44040104.0000000000000
-1.050000 44040105.0000000000000
-1.350000 44040106.0000000000000
-1.650000 44040107.0000000000000
-1.950000 44040108.0000000000000
-2.250000 44040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/fyy.xl b/CarpetAttic/Cart3dTest/test/axial-yz/fyy.xl
index db74f1421..52a0edfc7 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/fyy.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/fyy.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::fyy x (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 45000102
+0 0 0 0 0 1 1 2 45010102
+0 0 0 0 0 2 1 2 45020102
+0 0 0 0 0 3 1 2 45030102
+0 0 0 0 0 4 1 2 45040102
+0 0 0 0 0 5 1 2 45050102
+0 0 0 0 0 6 1 2 45060102
+0 0 0 0 0 7 1 2 45070102
+0 0 0 0 0 8 1 2 45080102
+0 0 0 0 0 9 1 2 45090102
-"Time = 0.000000
--1.350000 45000101.0000000000000
--1.050000 45010101.0000000000000
--0.750000 45020101.0000000000000
--0.450000 45030101.0000000000000
--0.150000 45040101.0000000000000
-0.150000 45050101.0000000000000
-0.450000 45060101.0000000000000
-0.750000 45070101.0000000000000
-1.050000 45080101.0000000000000
-1.350000 45090101.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 45000102
+1 0 0 0 0 1 1 2 45010102
+1 0 0 0 0 2 1 2 45020102
+1 0 0 0 0 3 1 2 45030102
+1 0 0 0 0 4 1 2 45040102
+1 0 0 0 0 5 1 2 45050102
+1 0 0 0 0 6 1 2 45060102
+1 0 0 0 0 7 1 2 45070102
+1 0 0 0 0 8 1 2 45080102
+1 0 0 0 0 9 1 2 45090102
-"Time = 1.000000
--1.350000 49000101.0000000000000
--1.050000 49010101.0000000000000
--0.750000 49020101.0000000000000
--0.450000 49030101.0000000000000
--0.150000 49040101.0000000000000
-0.150000 49050101.0000000000000
-0.450000 49060101.0000000000000
-0.750000 49070101.0000000000000
-1.050000 49080101.0000000000000
-1.350000 49090101.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/fyy.yl b/CarpetAttic/Cart3dTest/test/axial-yz/fyy.yl
index 36113e1cc..ff4b0c99c 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/fyy.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/fyy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy y (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 45050002
+0 0 0 0 0 5 1 2 45050102
+0 0 0 0 0 5 2 2 45050202
+0 0 0 0 0 5 3 2 45050302
+0 0 0 0 0 5 4 2 45050402
+0 0 0 0 0 5 5 2 45050502
+0 0 0 0 0 5 6 2 45050602
+0 0 0 0 0 5 7 2 45050702
+0 0 0 0 0 5 8 2 45050802
+0 0 0 0 0 5 9 2 45050902
+0 0 0 0 0 5 10 2 45051002
-"Time = 0.000000
--0.150000 45040001.0000000000000
-0.150000 45040101.0000000000000
-0.450000 45040201.0000000000000
-0.750000 45040301.0000000000000
-1.050000 45040401.0000000000000
-1.350000 45040501.0000000000000
-1.650000 45040601.0000000000000
-1.950000 45040701.0000000000000
-2.250000 45040801.0000000000000
-2.550000 45040901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 49050102
+1 0 0 0 0 5 1 2 45050102
+1 0 0 0 0 5 2 2 45050202
+1 0 0 0 0 5 3 2 45050302
+1 0 0 0 0 5 4 2 45050402
+1 0 0 0 0 5 5 2 45050502
+1 0 0 0 0 5 6 2 45050602
+1 0 0 0 0 5 7 2 45050702
+1 0 0 0 0 5 8 2 45050802
+1 0 0 0 0 5 9 2 45050902
+1 0 0 0 0 5 10 2 45051002
-"Time = 1.000000
--0.150000 49040100.0000000000000
-0.150000 49040101.0000000000000
-0.450000 49040102.0000000000000
-0.750000 49040103.0000000000000
-1.050000 49040104.0000000000000
-1.350000 49040105.0000000000000
-1.650000 49040106.0000000000000
-1.950000 49040107.0000000000000
-2.250000 49040108.0000000000000
-2.550000 49040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/fyy.zl b/CarpetAttic/Cart3dTest/test/axial-yz/fyy.zl
index dbe8f7df0..487f62b7c 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/fyy.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/fyy.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::fyy z (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 45050100
+0 0 0 0 0 5 1 1 45050101
+0 0 0 0 0 5 1 2 45050102
+0 0 0 0 0 5 1 3 45050103
+0 0 0 0 0 5 1 4 45050104
+0 0 0 0 0 5 1 5 45050105
+0 0 0 0 0 5 1 6 45050106
+0 0 0 0 0 5 1 7 45050107
+0 0 0 0 0 5 1 8 45050108
+0 0 0 0 0 5 1 9 45050109
+0 0 0 0 0 5 1 10 45050110
+0 0 0 0 0 5 1 11 45050111
-"Time = 0.000000
--0.450000 45040100.0000000000000
--0.150000 45040101.0000000000000
-0.150000 45040102.0000000000000
-0.450000 45040103.0000000000000
-0.750000 45040104.0000000000000
-1.050000 45040105.0000000000000
-1.350000 45040106.0000000000000
-1.650000 45040107.0000000000000
-1.950000 45040108.0000000000000
-2.250000 45040109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 49050202
+1 0 0 0 0 5 1 1 49050102
+1 0 0 0 0 5 1 2 45050102
+1 0 0 0 0 5 1 3 45050103
+1 0 0 0 0 5 1 4 45050104
+1 0 0 0 0 5 1 5 45050105
+1 0 0 0 0 5 1 6 45050106
+1 0 0 0 0 5 1 7 45050107
+1 0 0 0 0 5 1 8 45050108
+1 0 0 0 0 5 1 9 45050109
+1 0 0 0 0 5 1 10 45050110
+1 0 0 0 0 5 1 11 45050111
-"Time = 1.000000
--0.450000 49040201.0000000000000
--0.150000 49040101.0000000000000
-0.150000 45040102.0000000000000
-0.450000 45040103.0000000000000
-0.750000 45040104.0000000000000
-1.050000 45040105.0000000000000
-1.350000 45040106.0000000000000
-1.650000 45040107.0000000000000
-1.950000 45040108.0000000000000
-2.250000 45040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/fyz.xl b/CarpetAttic/Cart3dTest/test/axial-yz/fyz.xl
index 993141f5b..9f7ecd679 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/fyz.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/fyz.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::fyz x (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 46000102
+0 0 0 0 0 1 1 2 46010102
+0 0 0 0 0 2 1 2 46020102
+0 0 0 0 0 3 1 2 46030102
+0 0 0 0 0 4 1 2 46040102
+0 0 0 0 0 5 1 2 46050102
+0 0 0 0 0 6 1 2 46060102
+0 0 0 0 0 7 1 2 46070102
+0 0 0 0 0 8 1 2 46080102
+0 0 0 0 0 9 1 2 46090102
-"Time = 0.000000
--1.350000 46000101.0000000000000
--1.050000 46010101.0000000000000
--0.750000 46020101.0000000000000
--0.450000 46030101.0000000000000
--0.150000 46040101.0000000000000
-0.150000 46050101.0000000000000
-0.450000 46060101.0000000000000
-0.750000 46070101.0000000000000
-1.050000 46080101.0000000000000
-1.350000 46090101.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 46000102
+1 0 0 0 0 1 1 2 46010102
+1 0 0 0 0 2 1 2 46020102
+1 0 0 0 0 3 1 2 46030102
+1 0 0 0 0 4 1 2 46040102
+1 0 0 0 0 5 1 2 46050102
+1 0 0 0 0 6 1 2 46060102
+1 0 0 0 0 7 1 2 46070102
+1 0 0 0 0 8 1 2 46080102
+1 0 0 0 0 9 1 2 46090102
-"Time = 1.000000
--1.350000 -48000101.0000000000000
--1.050000 -48010101.0000000000000
--0.750000 -48020101.0000000000000
--0.450000 -48030101.0000000000000
--0.150000 -48040101.0000000000000
-0.150000 -48050101.0000000000000
-0.450000 -48060101.0000000000000
-0.750000 -48070101.0000000000000
-1.050000 -48080101.0000000000000
-1.350000 -48090101.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/fyz.yl b/CarpetAttic/Cart3dTest/test/axial-yz/fyz.yl
index 2be082c82..fda1bd03d 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/fyz.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/fyz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz y (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 46050002
+0 0 0 0 0 5 1 2 46050102
+0 0 0 0 0 5 2 2 46050202
+0 0 0 0 0 5 3 2 46050302
+0 0 0 0 0 5 4 2 46050402
+0 0 0 0 0 5 5 2 46050502
+0 0 0 0 0 5 6 2 46050602
+0 0 0 0 0 5 7 2 46050702
+0 0 0 0 0 5 8 2 46050802
+0 0 0 0 0 5 9 2 46050902
+0 0 0 0 0 5 10 2 46051002
-"Time = 0.000000
--0.150000 46040001.0000000000000
-0.150000 46040101.0000000000000
-0.450000 46040201.0000000000000
-0.750000 46040301.0000000000000
-1.050000 46040401.0000000000000
-1.350000 46040501.0000000000000
-1.650000 46040601.0000000000000
-1.950000 46040701.0000000000000
-2.250000 46040801.0000000000000
-2.550000 46040901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 -48050102
+1 0 0 0 0 5 1 2 46050102
+1 0 0 0 0 5 2 2 46050202
+1 0 0 0 0 5 3 2 46050302
+1 0 0 0 0 5 4 2 46050402
+1 0 0 0 0 5 5 2 46050502
+1 0 0 0 0 5 6 2 46050602
+1 0 0 0 0 5 7 2 46050702
+1 0 0 0 0 5 8 2 46050802
+1 0 0 0 0 5 9 2 46050902
+1 0 0 0 0 5 10 2 46051002
-"Time = 1.000000
--0.150000 -48040100.0000000000000
-0.150000 -48040101.0000000000000
-0.450000 -48040102.0000000000000
-0.750000 -48040103.0000000000000
-1.050000 -48040104.0000000000000
-1.350000 -48040105.0000000000000
-1.650000 -48040106.0000000000000
-1.950000 -48040107.0000000000000
-2.250000 -48040108.0000000000000
-2.550000 -48040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/fyz.zl b/CarpetAttic/Cart3dTest/test/axial-yz/fyz.zl
index 65464bc6f..8ef1681b6 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/fyz.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/fyz.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::fyz z (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 46050100
+0 0 0 0 0 5 1 1 46050101
+0 0 0 0 0 5 1 2 46050102
+0 0 0 0 0 5 1 3 46050103
+0 0 0 0 0 5 1 4 46050104
+0 0 0 0 0 5 1 5 46050105
+0 0 0 0 0 5 1 6 46050106
+0 0 0 0 0 5 1 7 46050107
+0 0 0 0 0 5 1 8 46050108
+0 0 0 0 0 5 1 9 46050109
+0 0 0 0 0 5 1 10 46050110
+0 0 0 0 0 5 1 11 46050111
-"Time = 0.000000
--0.450000 46040100.0000000000000
--0.150000 46040101.0000000000000
-0.150000 46040102.0000000000000
-0.450000 46040103.0000000000000
-0.750000 46040104.0000000000000
-1.050000 46040105.0000000000000
-1.350000 46040106.0000000000000
-1.650000 46040107.0000000000000
-1.950000 46040108.0000000000000
-2.250000 46040109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 -48050202
+1 0 0 0 0 5 1 1 -48050102
+1 0 0 0 0 5 1 2 46050102
+1 0 0 0 0 5 1 3 46050103
+1 0 0 0 0 5 1 4 46050104
+1 0 0 0 0 5 1 5 46050105
+1 0 0 0 0 5 1 6 46050106
+1 0 0 0 0 5 1 7 46050107
+1 0 0 0 0 5 1 8 46050108
+1 0 0 0 0 5 1 9 46050109
+1 0 0 0 0 5 1 10 46050110
+1 0 0 0 0 5 1 11 46050111
-"Time = 1.000000
--0.450000 -48040201.0000000000000
--0.150000 -48040101.0000000000000
-0.150000 46040102.0000000000000
-0.450000 46040103.0000000000000
-0.750000 46040104.0000000000000
-1.050000 46040105.0000000000000
-1.350000 46040106.0000000000000
-1.650000 46040107.0000000000000
-1.950000 46040108.0000000000000
-2.250000 46040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/fzx.xl b/CarpetAttic/Cart3dTest/test/axial-yz/fzx.xl
index b4bff8515..a87372f47 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/fzx.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/fzx.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::fzx x (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 47000102
+0 0 0 0 0 1 1 2 47010102
+0 0 0 0 0 2 1 2 47020102
+0 0 0 0 0 3 1 2 47030102
+0 0 0 0 0 4 1 2 47040102
+0 0 0 0 0 5 1 2 47050102
+0 0 0 0 0 6 1 2 47060102
+0 0 0 0 0 7 1 2 47070102
+0 0 0 0 0 8 1 2 47080102
+0 0 0 0 0 9 1 2 47090102
-"Time = 0.000000
--1.350000 47000101.0000000000000
--1.050000 47010101.0000000000000
--0.750000 47020101.0000000000000
--0.450000 47030101.0000000000000
--0.150000 47040101.0000000000000
-0.150000 47050101.0000000000000
-0.450000 47060101.0000000000000
-0.750000 47070101.0000000000000
-1.050000 47080101.0000000000000
-1.350000 47090101.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 47000102
+1 0 0 0 0 1 1 2 47010102
+1 0 0 0 0 2 1 2 47020102
+1 0 0 0 0 3 1 2 47030102
+1 0 0 0 0 4 1 2 47040102
+1 0 0 0 0 5 1 2 47050102
+1 0 0 0 0 6 1 2 47060102
+1 0 0 0 0 7 1 2 47070102
+1 0 0 0 0 8 1 2 47080102
+1 0 0 0 0 9 1 2 47090102
-"Time = 1.000000
--1.350000 -47000101.0000000000000
--1.050000 -47010101.0000000000000
--0.750000 -47020101.0000000000000
--0.450000 -47030101.0000000000000
--0.150000 -47040101.0000000000000
-0.150000 -47050101.0000000000000
-0.450000 -47060101.0000000000000
-0.750000 -47070101.0000000000000
-1.050000 -47080101.0000000000000
-1.350000 -47090101.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/fzx.yl b/CarpetAttic/Cart3dTest/test/axial-yz/fzx.yl
index a92dc4ff6..4f62fc74f 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/fzx.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/fzx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx y (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 47050002
+0 0 0 0 0 5 1 2 47050102
+0 0 0 0 0 5 2 2 47050202
+0 0 0 0 0 5 3 2 47050302
+0 0 0 0 0 5 4 2 47050402
+0 0 0 0 0 5 5 2 47050502
+0 0 0 0 0 5 6 2 47050602
+0 0 0 0 0 5 7 2 47050702
+0 0 0 0 0 5 8 2 47050802
+0 0 0 0 0 5 9 2 47050902
+0 0 0 0 0 5 10 2 47051002
-"Time = 0.000000
--0.150000 47040001.0000000000000
-0.150000 47040101.0000000000000
-0.450000 47040201.0000000000000
-0.750000 47040301.0000000000000
-1.050000 47040401.0000000000000
-1.350000 47040501.0000000000000
-1.650000 47040601.0000000000000
-1.950000 47040701.0000000000000
-2.250000 47040801.0000000000000
-2.550000 47040901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 44050102
+1 0 0 0 0 5 1 2 47050102
+1 0 0 0 0 5 2 2 47050202
+1 0 0 0 0 5 3 2 47050302
+1 0 0 0 0 5 4 2 47050402
+1 0 0 0 0 5 5 2 47050502
+1 0 0 0 0 5 6 2 47050602
+1 0 0 0 0 5 7 2 47050702
+1 0 0 0 0 5 8 2 47050802
+1 0 0 0 0 5 9 2 47050902
+1 0 0 0 0 5 10 2 47051002
-"Time = 1.000000
--0.150000 -47040201.0000000000000
-0.150000 -47040101.0000000000000
-0.450000 -44040102.0000000000000
-0.750000 -44040103.0000000000000
-1.050000 -44040104.0000000000000
-1.350000 -44040105.0000000000000
-1.650000 -44040106.0000000000000
-1.950000 -44040107.0000000000000
-2.250000 -44040108.0000000000000
-2.550000 -44040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/fzx.zl b/CarpetAttic/Cart3dTest/test/axial-yz/fzx.zl
index cb9826b3c..afbc628c9 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/fzx.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/fzx.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::fzx z (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 47050100
+0 0 0 0 0 5 1 1 47050101
+0 0 0 0 0 5 1 2 47050102
+0 0 0 0 0 5 1 3 47050103
+0 0 0 0 0 5 1 4 47050104
+0 0 0 0 0 5 1 5 47050105
+0 0 0 0 0 5 1 6 47050106
+0 0 0 0 0 5 1 7 47050107
+0 0 0 0 0 5 1 8 47050108
+0 0 0 0 0 5 1 9 47050109
+0 0 0 0 0 5 1 10 47050110
+0 0 0 0 0 5 1 11 47050111
-"Time = 0.000000
--0.450000 47040100.0000000000000
--0.150000 47040101.0000000000000
-0.150000 47040102.0000000000000
-0.450000 47040103.0000000000000
-0.750000 47040104.0000000000000
-1.050000 47040105.0000000000000
-1.350000 47040106.0000000000000
-1.650000 47040107.0000000000000
-1.950000 47040108.0000000000000
-2.250000 47040109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 -44050202
+1 0 0 0 0 5 1 1 -44050102
+1 0 0 0 0 5 1 2 47050102
+1 0 0 0 0 5 1 3 47050103
+1 0 0 0 0 5 1 4 47050104
+1 0 0 0 0 5 1 5 47050105
+1 0 0 0 0 5 1 6 47050106
+1 0 0 0 0 5 1 7 47050107
+1 0 0 0 0 5 1 8 47050108
+1 0 0 0 0 5 1 9 47050109
+1 0 0 0 0 5 1 10 47050110
+1 0 0 0 0 5 1 11 47050111
-"Time = 1.000000
--0.450000 -47040102.0000000000000
--0.150000 -47040101.0000000000000
-0.150000 47040102.0000000000000
-0.450000 47040103.0000000000000
-0.750000 47040104.0000000000000
-1.050000 47040105.0000000000000
-1.350000 47040106.0000000000000
-1.650000 47040107.0000000000000
-1.950000 47040108.0000000000000
-2.250000 47040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/fzy.xl b/CarpetAttic/Cart3dTest/test/axial-yz/fzy.xl
index 9c48e4900..b0588b9a3 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/fzy.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/fzy.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::fzy x (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 48000102
+0 0 0 0 0 1 1 2 48010102
+0 0 0 0 0 2 1 2 48020102
+0 0 0 0 0 3 1 2 48030102
+0 0 0 0 0 4 1 2 48040102
+0 0 0 0 0 5 1 2 48050102
+0 0 0 0 0 6 1 2 48060102
+0 0 0 0 0 7 1 2 48070102
+0 0 0 0 0 8 1 2 48080102
+0 0 0 0 0 9 1 2 48090102
-"Time = 0.000000
--1.350000 48000101.0000000000000
--1.050000 48010101.0000000000000
--0.750000 48020101.0000000000000
--0.450000 48030101.0000000000000
--0.150000 48040101.0000000000000
-0.150000 48050101.0000000000000
-0.450000 48060101.0000000000000
-0.750000 48070101.0000000000000
-1.050000 48080101.0000000000000
-1.350000 48090101.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 48000102
+1 0 0 0 0 1 1 2 48010102
+1 0 0 0 0 2 1 2 48020102
+1 0 0 0 0 3 1 2 48030102
+1 0 0 0 0 4 1 2 48040102
+1 0 0 0 0 5 1 2 48050102
+1 0 0 0 0 6 1 2 48060102
+1 0 0 0 0 7 1 2 48070102
+1 0 0 0 0 8 1 2 48080102
+1 0 0 0 0 9 1 2 48090102
-"Time = 1.000000
--1.350000 48000101.0000000000000
--1.050000 48010101.0000000000000
--0.750000 48020101.0000000000000
--0.450000 48030101.0000000000000
--0.150000 48040101.0000000000000
-0.150000 48050101.0000000000000
-0.450000 48060101.0000000000000
-0.750000 48070101.0000000000000
-1.050000 48080101.0000000000000
-1.350000 48090101.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/fzy.yl b/CarpetAttic/Cart3dTest/test/axial-yz/fzy.yl
index 24d4a1009..72fa170e9 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/fzy.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/fzy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy y (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 48050002
+0 0 0 0 0 5 1 2 48050102
+0 0 0 0 0 5 2 2 48050202
+0 0 0 0 0 5 3 2 48050302
+0 0 0 0 0 5 4 2 48050402
+0 0 0 0 0 5 5 2 48050502
+0 0 0 0 0 5 6 2 48050602
+0 0 0 0 0 5 7 2 48050702
+0 0 0 0 0 5 8 2 48050802
+0 0 0 0 0 5 9 2 48050902
+0 0 0 0 0 5 10 2 48051002
-"Time = 0.000000
--0.150000 48040001.0000000000000
-0.150000 48040101.0000000000000
-0.450000 48040201.0000000000000
-0.750000 48040301.0000000000000
-1.050000 48040401.0000000000000
-1.350000 48040501.0000000000000
-1.650000 48040601.0000000000000
-1.950000 48040701.0000000000000
-2.250000 48040801.0000000000000
-2.550000 48040901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 -46050102
+1 0 0 0 0 5 1 2 48050102
+1 0 0 0 0 5 2 2 48050202
+1 0 0 0 0 5 3 2 48050302
+1 0 0 0 0 5 4 2 48050402
+1 0 0 0 0 5 5 2 48050502
+1 0 0 0 0 5 6 2 48050602
+1 0 0 0 0 5 7 2 48050702
+1 0 0 0 0 5 8 2 48050802
+1 0 0 0 0 5 9 2 48050902
+1 0 0 0 0 5 10 2 48051002
-"Time = 1.000000
--0.150000 48040201.0000000000000
-0.150000 48040101.0000000000000
-0.450000 -46040102.0000000000000
-0.750000 -46040103.0000000000000
-1.050000 -46040104.0000000000000
-1.350000 -46040105.0000000000000
-1.650000 -46040106.0000000000000
-1.950000 -46040107.0000000000000
-2.250000 -46040108.0000000000000
-2.550000 -46040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/fzy.zl b/CarpetAttic/Cart3dTest/test/axial-yz/fzy.zl
index 87b5db685..7058851c0 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/fzy.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/fzy.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::fzy z (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 48050100
+0 0 0 0 0 5 1 1 48050101
+0 0 0 0 0 5 1 2 48050102
+0 0 0 0 0 5 1 3 48050103
+0 0 0 0 0 5 1 4 48050104
+0 0 0 0 0 5 1 5 48050105
+0 0 0 0 0 5 1 6 48050106
+0 0 0 0 0 5 1 7 48050107
+0 0 0 0 0 5 1 8 48050108
+0 0 0 0 0 5 1 9 48050109
+0 0 0 0 0 5 1 10 48050110
+0 0 0 0 0 5 1 11 48050111
-"Time = 0.000000
--0.450000 48040100.0000000000000
--0.150000 48040101.0000000000000
-0.150000 48040102.0000000000000
-0.450000 48040103.0000000000000
-0.750000 48040104.0000000000000
-1.050000 48040105.0000000000000
-1.350000 48040106.0000000000000
-1.650000 48040107.0000000000000
-1.950000 48040108.0000000000000
-2.250000 48040109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 -46050202
+1 0 0 0 0 5 1 1 -46050102
+1 0 0 0 0 5 1 2 48050102
+1 0 0 0 0 5 1 3 48050103
+1 0 0 0 0 5 1 4 48050104
+1 0 0 0 0 5 1 5 48050105
+1 0 0 0 0 5 1 6 48050106
+1 0 0 0 0 5 1 7 48050107
+1 0 0 0 0 5 1 8 48050108
+1 0 0 0 0 5 1 9 48050109
+1 0 0 0 0 5 1 10 48050110
+1 0 0 0 0 5 1 11 48050111
-"Time = 1.000000
--0.450000 48040102.0000000000000
--0.150000 48040101.0000000000000
-0.150000 48040102.0000000000000
-0.450000 48040103.0000000000000
-0.750000 48040104.0000000000000
-1.050000 48040105.0000000000000
-1.350000 48040106.0000000000000
-1.650000 48040107.0000000000000
-1.950000 48040108.0000000000000
-2.250000 48040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/fzz.xl b/CarpetAttic/Cart3dTest/test/axial-yz/fzz.xl
index 715e3cae1..e1f46449c 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/fzz.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/fzz.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::fzz x (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 49000102
+0 0 0 0 0 1 1 2 49010102
+0 0 0 0 0 2 1 2 49020102
+0 0 0 0 0 3 1 2 49030102
+0 0 0 0 0 4 1 2 49040102
+0 0 0 0 0 5 1 2 49050102
+0 0 0 0 0 6 1 2 49060102
+0 0 0 0 0 7 1 2 49070102
+0 0 0 0 0 8 1 2 49080102
+0 0 0 0 0 9 1 2 49090102
-"Time = 0.000000
--1.350000 49000101.0000000000000
--1.050000 49010101.0000000000000
--0.750000 49020101.0000000000000
--0.450000 49030101.0000000000000
--0.150000 49040101.0000000000000
-0.150000 49050101.0000000000000
-0.450000 49060101.0000000000000
-0.750000 49070101.0000000000000
-1.050000 49080101.0000000000000
-1.350000 49090101.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 49000102
+1 0 0 0 0 1 1 2 49010102
+1 0 0 0 0 2 1 2 49020102
+1 0 0 0 0 3 1 2 49030102
+1 0 0 0 0 4 1 2 49040102
+1 0 0 0 0 5 1 2 49050102
+1 0 0 0 0 6 1 2 49060102
+1 0 0 0 0 7 1 2 49070102
+1 0 0 0 0 8 1 2 49080102
+1 0 0 0 0 9 1 2 49090102
-"Time = 1.000000
--1.350000 49000101.0000000000000
--1.050000 49010101.0000000000000
--0.750000 49020101.0000000000000
--0.450000 49030101.0000000000000
--0.150000 49040101.0000000000000
-0.150000 49050101.0000000000000
-0.450000 49060101.0000000000000
-0.750000 49070101.0000000000000
-1.050000 49080101.0000000000000
-1.350000 49090101.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/fzz.yl b/CarpetAttic/Cart3dTest/test/axial-yz/fzz.yl
index 9f5c00c60..a86c7d88b 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/fzz.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/fzz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz y (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 49050002
+0 0 0 0 0 5 1 2 49050102
+0 0 0 0 0 5 2 2 49050202
+0 0 0 0 0 5 3 2 49050302
+0 0 0 0 0 5 4 2 49050402
+0 0 0 0 0 5 5 2 49050502
+0 0 0 0 0 5 6 2 49050602
+0 0 0 0 0 5 7 2 49050702
+0 0 0 0 0 5 8 2 49050802
+0 0 0 0 0 5 9 2 49050902
+0 0 0 0 0 5 10 2 49051002
-"Time = 0.000000
--0.150000 49040001.0000000000000
-0.150000 49040101.0000000000000
-0.450000 49040201.0000000000000
-0.750000 49040301.0000000000000
-1.050000 49040401.0000000000000
-1.350000 49040501.0000000000000
-1.650000 49040601.0000000000000
-1.950000 49040701.0000000000000
-2.250000 49040801.0000000000000
-2.550000 49040901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 45050102
+1 0 0 0 0 5 1 2 49050102
+1 0 0 0 0 5 2 2 49050202
+1 0 0 0 0 5 3 2 49050302
+1 0 0 0 0 5 4 2 49050402
+1 0 0 0 0 5 5 2 49050502
+1 0 0 0 0 5 6 2 49050602
+1 0 0 0 0 5 7 2 49050702
+1 0 0 0 0 5 8 2 49050802
+1 0 0 0 0 5 9 2 49050902
+1 0 0 0 0 5 10 2 49051002
-"Time = 1.000000
--0.150000 49040201.0000000000000
-0.150000 49040101.0000000000000
-0.450000 45040102.0000000000000
-0.750000 45040103.0000000000000
-1.050000 45040104.0000000000000
-1.350000 45040105.0000000000000
-1.650000 45040106.0000000000000
-1.950000 45040107.0000000000000
-2.250000 45040108.0000000000000
-2.550000 45040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/fzz.zl b/CarpetAttic/Cart3dTest/test/axial-yz/fzz.zl
index 49418d3b0..42c6ef45c 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/fzz.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/fzz.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::fzz z (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 49050100
+0 0 0 0 0 5 1 1 49050101
+0 0 0 0 0 5 1 2 49050102
+0 0 0 0 0 5 1 3 49050103
+0 0 0 0 0 5 1 4 49050104
+0 0 0 0 0 5 1 5 49050105
+0 0 0 0 0 5 1 6 49050106
+0 0 0 0 0 5 1 7 49050107
+0 0 0 0 0 5 1 8 49050108
+0 0 0 0 0 5 1 9 49050109
+0 0 0 0 0 5 1 10 49050110
+0 0 0 0 0 5 1 11 49050111
-"Time = 0.000000
--0.450000 49040100.0000000000000
--0.150000 49040101.0000000000000
-0.150000 49040102.0000000000000
-0.450000 49040103.0000000000000
-0.750000 49040104.0000000000000
-1.050000 49040105.0000000000000
-1.350000 49040106.0000000000000
-1.650000 49040107.0000000000000
-1.950000 49040108.0000000000000
-2.250000 49040109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 45050202
+1 0 0 0 0 5 1 1 45050102
+1 0 0 0 0 5 1 2 49050102
+1 0 0 0 0 5 1 3 49050103
+1 0 0 0 0 5 1 4 49050104
+1 0 0 0 0 5 1 5 49050105
+1 0 0 0 0 5 1 6 49050106
+1 0 0 0 0 5 1 7 49050107
+1 0 0 0 0 5 1 8 49050108
+1 0 0 0 0 5 1 9 49050109
+1 0 0 0 0 5 1 10 49050110
+1 0 0 0 0 5 1 11 49050111
-"Time = 1.000000
--0.450000 49040102.0000000000000
--0.150000 49040101.0000000000000
-0.150000 49040102.0000000000000
-0.450000 49040103.0000000000000
-0.750000 49040104.0000000000000
-1.050000 49040105.0000000000000
-1.350000 49040106.0000000000000
-1.650000 49040107.0000000000000
-1.950000 49040108.0000000000000
-2.250000 49040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/s.xl b/CarpetAttic/Cart3dTest/test/axial-yz/s.xl
index 7cd6ea6dd..89e891ef0 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/s.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/s.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::s x (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 1000102
+0 0 0 0 0 1 1 2 1010102
+0 0 0 0 0 2 1 2 1020102
+0 0 0 0 0 3 1 2 1030102
+0 0 0 0 0 4 1 2 1040102
+0 0 0 0 0 5 1 2 1050102
+0 0 0 0 0 6 1 2 1060102
+0 0 0 0 0 7 1 2 1070102
+0 0 0 0 0 8 1 2 1080102
+0 0 0 0 0 9 1 2 1090102
-"Time = 0.000000
--1.350000 1000101.0000000000000
--1.050000 1010101.0000000000000
--0.750000 1020101.0000000000000
--0.450000 1030101.0000000000000
--0.150000 1040101.0000000000000
-0.150000 1050101.0000000000000
-0.450000 1060101.0000000000000
-0.750000 1070101.0000000000000
-1.050000 1080101.0000000000000
-1.350000 1090101.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 1000102
+1 0 0 0 0 1 1 2 1010102
+1 0 0 0 0 2 1 2 1020102
+1 0 0 0 0 3 1 2 1030102
+1 0 0 0 0 4 1 2 1040102
+1 0 0 0 0 5 1 2 1050102
+1 0 0 0 0 6 1 2 1060102
+1 0 0 0 0 7 1 2 1070102
+1 0 0 0 0 8 1 2 1080102
+1 0 0 0 0 9 1 2 1090102
-"Time = 1.000000
--1.350000 1000101.0000000000000
--1.050000 1010101.0000000000000
--0.750000 1020101.0000000000000
--0.450000 1030101.0000000000000
--0.150000 1040101.0000000000000
-0.150000 1050101.0000000000000
-0.450000 1060101.0000000000000
-0.750000 1070101.0000000000000
-1.050000 1080101.0000000000000
-1.350000 1090101.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/s.yl b/CarpetAttic/Cart3dTest/test/axial-yz/s.yl
index 2cf161b94..c4f4d60bb 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/s.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/s.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::s y (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 1050002
+0 0 0 0 0 5 1 2 1050102
+0 0 0 0 0 5 2 2 1050202
+0 0 0 0 0 5 3 2 1050302
+0 0 0 0 0 5 4 2 1050402
+0 0 0 0 0 5 5 2 1050502
+0 0 0 0 0 5 6 2 1050602
+0 0 0 0 0 5 7 2 1050702
+0 0 0 0 0 5 8 2 1050802
+0 0 0 0 0 5 9 2 1050902
+0 0 0 0 0 5 10 2 1051002
-"Time = 0.000000
--0.150000 1040001.0000000000000
-0.150000 1040101.0000000000000
-0.450000 1040201.0000000000000
-0.750000 1040301.0000000000000
-1.050000 1040401.0000000000000
-1.350000 1040501.0000000000000
-1.650000 1040601.0000000000000
-1.950000 1040701.0000000000000
-2.250000 1040801.0000000000000
-2.550000 1040901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 1050102
+1 0 0 0 0 5 1 2 1050102
+1 0 0 0 0 5 2 2 1050202
+1 0 0 0 0 5 3 2 1050302
+1 0 0 0 0 5 4 2 1050402
+1 0 0 0 0 5 5 2 1050502
+1 0 0 0 0 5 6 2 1050602
+1 0 0 0 0 5 7 2 1050702
+1 0 0 0 0 5 8 2 1050802
+1 0 0 0 0 5 9 2 1050902
+1 0 0 0 0 5 10 2 1051002
-"Time = 1.000000
--0.150000 1040100.0000000000000
-0.150000 1040101.0000000000000
-0.450000 1040102.0000000000000
-0.750000 1040103.0000000000000
-1.050000 1040104.0000000000000
-1.350000 1040105.0000000000000
-1.650000 1040106.0000000000000
-1.950000 1040107.0000000000000
-2.250000 1040108.0000000000000
-2.550000 1040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/s.zl b/CarpetAttic/Cart3dTest/test/axial-yz/s.zl
index 8254d6404..726212c88 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/s.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/s.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::s z (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 1050100
+0 0 0 0 0 5 1 1 1050101
+0 0 0 0 0 5 1 2 1050102
+0 0 0 0 0 5 1 3 1050103
+0 0 0 0 0 5 1 4 1050104
+0 0 0 0 0 5 1 5 1050105
+0 0 0 0 0 5 1 6 1050106
+0 0 0 0 0 5 1 7 1050107
+0 0 0 0 0 5 1 8 1050108
+0 0 0 0 0 5 1 9 1050109
+0 0 0 0 0 5 1 10 1050110
+0 0 0 0 0 5 1 11 1050111
-"Time = 0.000000
--0.450000 1040100.0000000000000
--0.150000 1040101.0000000000000
-0.150000 1040102.0000000000000
-0.450000 1040103.0000000000000
-0.750000 1040104.0000000000000
-1.050000 1040105.0000000000000
-1.350000 1040106.0000000000000
-1.650000 1040107.0000000000000
-1.950000 1040108.0000000000000
-2.250000 1040109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 1050202
+1 0 0 0 0 5 1 1 1050102
+1 0 0 0 0 5 1 2 1050102
+1 0 0 0 0 5 1 3 1050103
+1 0 0 0 0 5 1 4 1050104
+1 0 0 0 0 5 1 5 1050105
+1 0 0 0 0 5 1 6 1050106
+1 0 0 0 0 5 1 7 1050107
+1 0 0 0 0 5 1 8 1050108
+1 0 0 0 0 5 1 9 1050109
+1 0 0 0 0 5 1 10 1050110
+1 0 0 0 0 5 1 11 1050111
-"Time = 1.000000
--0.450000 1040201.0000000000000
--0.150000 1040101.0000000000000
-0.150000 1040102.0000000000000
-0.450000 1040103.0000000000000
-0.750000 1040104.0000000000000
-1.050000 1040105.0000000000000
-1.350000 1040106.0000000000000
-1.650000 1040107.0000000000000
-1.950000 1040108.0000000000000
-2.250000 1040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/spher3d_r.xl b/CarpetAttic/Cart3dTest/test/axial-yz/spher3d_r.xl
index 2865c92e4..8a8c565d7 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/spher3d_r.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/spher3d_r.xl
@@ -1,26 +1,32 @@
+# GRID::spher3d_r x (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 1.36656503687164
+0 0 0 0 0 1 1 2 1.07121426428143
+0 0 0 0 0 2 1 2 0.779422863405995
+0 0 0 0 0 3 1 2 0.49749371855331
+0 0 0 0 0 4 1 2 0.259807621135332
+0 0 0 0 0 5 1 2 0.259807621135332
+0 0 0 0 0 6 1 2 0.49749371855331
+0 0 0 0 0 7 1 2 0.779422863405995
+0 0 0 0 0 8 1 2 1.07121426428143
+0 0 0 0 0 9 1 2 1.36656503687164
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 1.36656503687164
+1 0 0 0 0 1 1 2 1.07121426428143
+1 0 0 0 0 2 1 2 0.779422863405995
+1 0 0 0 0 3 1 2 0.49749371855331
+1 0 0 0 0 4 1 2 0.259807621135332
+1 0 0 0 0 5 1 2 0.259807621135332
+1 0 0 0 0 6 1 2 0.49749371855331
+1 0 0 0 0 7 1 2 0.779422863405995
+1 0 0 0 0 8 1 2 1.07121426428143
+1 0 0 0 0 9 1 2 1.36656503687164
-"Time = 1.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/spher3d_r.yl b/CarpetAttic/Cart3dTest/test/axial-yz/spher3d_r.yl
index aab231952..7dd33d33c 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/spher3d_r.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/spher3d_r.yl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r y (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 0.259807621135332
+0 0 0 0 0 5 1 2 0.259807621135332
+0 0 0 0 0 5 2 2 0.49749371855331
+0 0 0 0 0 5 3 2 0.779422863405995
+0 0 0 0 0 5 4 2 1.07121426428143
+0 0 0 0 0 5 5 2 1.36656503687164
+0 0 0 0 0 5 6 2 1.66358047596141
+0 0 0 0 0 5 7 2 1.9615045245933
+0 0 0 0 0 5 8 2 2.2599778759979
+0 0 0 0 0 5 9 2 2.5588083163848
+0 0 0 0 0 5 10 2 2.85788383248865
-"Time = 0.000000
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
-2.550000 2.5588083163848
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 0.259807621135332
+1 0 0 0 0 5 1 2 0.259807621135332
+1 0 0 0 0 5 2 2 0.49749371855331
+1 0 0 0 0 5 3 2 0.779422863405995
+1 0 0 0 0 5 4 2 1.07121426428143
+1 0 0 0 0 5 5 2 1.36656503687164
+1 0 0 0 0 5 6 2 1.66358047596141
+1 0 0 0 0 5 7 2 1.9615045245933
+1 0 0 0 0 5 8 2 2.2599778759979
+1 0 0 0 0 5 9 2 2.5588083163848
+1 0 0 0 0 5 10 2 2.85788383248865
-"Time = 1.000000
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
-2.550000 2.5588083163848
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/spher3d_r.zl b/CarpetAttic/Cart3dTest/test/axial-yz/spher3d_r.zl
index 10f9f0031..09cf8795f 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/spher3d_r.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/spher3d_r.zl
@@ -1,26 +1,36 @@
+# GRID::spher3d_r z (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 0.49749371855331
+0 0 0 0 0 5 1 1 0.259807621135332
+0 0 0 0 0 5 1 2 0.259807621135332
+0 0 0 0 0 5 1 3 0.49749371855331
+0 0 0 0 0 5 1 4 0.779422863405995
+0 0 0 0 0 5 1 5 1.07121426428143
+0 0 0 0 0 5 1 6 1.36656503687164
+0 0 0 0 0 5 1 7 1.66358047596141
+0 0 0 0 0 5 1 8 1.9615045245933
+0 0 0 0 0 5 1 9 2.2599778759979
+0 0 0 0 0 5 1 10 2.5588083163848
+0 0 0 0 0 5 1 11 2.85788383248865
-"Time = 0.000000
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 0.49749371855331
+1 0 0 0 0 5 1 1 0.259807621135332
+1 0 0 0 0 5 1 2 0.259807621135332
+1 0 0 0 0 5 1 3 0.49749371855331
+1 0 0 0 0 5 1 4 0.779422863405995
+1 0 0 0 0 5 1 5 1.07121426428143
+1 0 0 0 0 5 1 6 1.36656503687164
+1 0 0 0 0 5 1 7 1.66358047596141
+1 0 0 0 0 5 1 8 1.9615045245933
+1 0 0 0 0 5 1 9 2.2599778759979
+1 0 0 0 0 5 1 10 2.5588083163848
+1 0 0 0 0 5 1 11 2.85788383248865
-"Time = 1.000000
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/txx.xl b/CarpetAttic/Cart3dTest/test/axial-yz/txx.xl
index b7dd46df3..75d6b5a3f 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/txx.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/txx.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::txx x (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 21000102
+0 0 0 0 0 1 1 2 21010102
+0 0 0 0 0 2 1 2 21020102
+0 0 0 0 0 3 1 2 21030102
+0 0 0 0 0 4 1 2 21040102
+0 0 0 0 0 5 1 2 21050102
+0 0 0 0 0 6 1 2 21060102
+0 0 0 0 0 7 1 2 21070102
+0 0 0 0 0 8 1 2 21080102
+0 0 0 0 0 9 1 2 21090102
-"Time = 0.000000
--1.350000 21000101.0000000000000
--1.050000 21010101.0000000000000
--0.750000 21020101.0000000000000
--0.450000 21030101.0000000000000
--0.150000 21040101.0000000000000
-0.150000 21050101.0000000000000
-0.450000 21060101.0000000000000
-0.750000 21070101.0000000000000
-1.050000 21080101.0000000000000
-1.350000 21090101.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 21000102
+1 0 0 0 0 1 1 2 21010102
+1 0 0 0 0 2 1 2 21020102
+1 0 0 0 0 3 1 2 21030102
+1 0 0 0 0 4 1 2 21040102
+1 0 0 0 0 5 1 2 21050102
+1 0 0 0 0 6 1 2 21060102
+1 0 0 0 0 7 1 2 21070102
+1 0 0 0 0 8 1 2 21080102
+1 0 0 0 0 9 1 2 21090102
-"Time = 1.000000
--1.350000 21000101.0000000000000
--1.050000 21010101.0000000000000
--0.750000 21020101.0000000000000
--0.450000 21030101.0000000000000
--0.150000 21040101.0000000000000
-0.150000 21050101.0000000000000
-0.450000 21060101.0000000000000
-0.750000 21070101.0000000000000
-1.050000 21080101.0000000000000
-1.350000 21090101.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/txx.yl b/CarpetAttic/Cart3dTest/test/axial-yz/txx.yl
index 78a6066ba..9f06097ed 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/txx.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/txx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx y (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 21050002
+0 0 0 0 0 5 1 2 21050102
+0 0 0 0 0 5 2 2 21050202
+0 0 0 0 0 5 3 2 21050302
+0 0 0 0 0 5 4 2 21050402
+0 0 0 0 0 5 5 2 21050502
+0 0 0 0 0 5 6 2 21050602
+0 0 0 0 0 5 7 2 21050702
+0 0 0 0 0 5 8 2 21050802
+0 0 0 0 0 5 9 2 21050902
+0 0 0 0 0 5 10 2 21051002
-"Time = 0.000000
--0.150000 21040001.0000000000000
-0.150000 21040101.0000000000000
-0.450000 21040201.0000000000000
-0.750000 21040301.0000000000000
-1.050000 21040401.0000000000000
-1.350000 21040501.0000000000000
-1.650000 21040601.0000000000000
-1.950000 21040701.0000000000000
-2.250000 21040801.0000000000000
-2.550000 21040901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 21050102
+1 0 0 0 0 5 1 2 21050102
+1 0 0 0 0 5 2 2 21050202
+1 0 0 0 0 5 3 2 21050302
+1 0 0 0 0 5 4 2 21050402
+1 0 0 0 0 5 5 2 21050502
+1 0 0 0 0 5 6 2 21050602
+1 0 0 0 0 5 7 2 21050702
+1 0 0 0 0 5 8 2 21050802
+1 0 0 0 0 5 9 2 21050902
+1 0 0 0 0 5 10 2 21051002
-"Time = 1.000000
--0.150000 21040100.0000000000000
-0.150000 21040101.0000000000000
-0.450000 21040102.0000000000000
-0.750000 21040103.0000000000000
-1.050000 21040104.0000000000000
-1.350000 21040105.0000000000000
-1.650000 21040106.0000000000000
-1.950000 21040107.0000000000000
-2.250000 21040108.0000000000000
-2.550000 21040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/txx.zl b/CarpetAttic/Cart3dTest/test/axial-yz/txx.zl
index 1ec623efb..074f2bc37 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/txx.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/txx.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::txx z (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 21050100
+0 0 0 0 0 5 1 1 21050101
+0 0 0 0 0 5 1 2 21050102
+0 0 0 0 0 5 1 3 21050103
+0 0 0 0 0 5 1 4 21050104
+0 0 0 0 0 5 1 5 21050105
+0 0 0 0 0 5 1 6 21050106
+0 0 0 0 0 5 1 7 21050107
+0 0 0 0 0 5 1 8 21050108
+0 0 0 0 0 5 1 9 21050109
+0 0 0 0 0 5 1 10 21050110
+0 0 0 0 0 5 1 11 21050111
-"Time = 0.000000
--0.450000 21040100.0000000000000
--0.150000 21040101.0000000000000
-0.150000 21040102.0000000000000
-0.450000 21040103.0000000000000
-0.750000 21040104.0000000000000
-1.050000 21040105.0000000000000
-1.350000 21040106.0000000000000
-1.650000 21040107.0000000000000
-1.950000 21040108.0000000000000
-2.250000 21040109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 21050202
+1 0 0 0 0 5 1 1 21050102
+1 0 0 0 0 5 1 2 21050102
+1 0 0 0 0 5 1 3 21050103
+1 0 0 0 0 5 1 4 21050104
+1 0 0 0 0 5 1 5 21050105
+1 0 0 0 0 5 1 6 21050106
+1 0 0 0 0 5 1 7 21050107
+1 0 0 0 0 5 1 8 21050108
+1 0 0 0 0 5 1 9 21050109
+1 0 0 0 0 5 1 10 21050110
+1 0 0 0 0 5 1 11 21050111
-"Time = 1.000000
--0.450000 21040201.0000000000000
--0.150000 21040101.0000000000000
-0.150000 21040102.0000000000000
-0.450000 21040103.0000000000000
-0.750000 21040104.0000000000000
-1.050000 21040105.0000000000000
-1.350000 21040106.0000000000000
-1.650000 21040107.0000000000000
-1.950000 21040108.0000000000000
-2.250000 21040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/txy.xl b/CarpetAttic/Cart3dTest/test/axial-yz/txy.xl
index 8f2bf5172..c536cc0d9 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/txy.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/txy.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::txy x (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 22000102
+0 0 0 0 0 1 1 2 22010102
+0 0 0 0 0 2 1 2 22020102
+0 0 0 0 0 3 1 2 22030102
+0 0 0 0 0 4 1 2 22040102
+0 0 0 0 0 5 1 2 22050102
+0 0 0 0 0 6 1 2 22060102
+0 0 0 0 0 7 1 2 22070102
+0 0 0 0 0 8 1 2 22080102
+0 0 0 0 0 9 1 2 22090102
-"Time = 0.000000
--1.350000 22000101.0000000000000
--1.050000 22010101.0000000000000
--0.750000 22020101.0000000000000
--0.450000 22030101.0000000000000
--0.150000 22040101.0000000000000
-0.150000 22050101.0000000000000
-0.450000 22060101.0000000000000
-0.750000 22070101.0000000000000
-1.050000 22080101.0000000000000
-1.350000 22090101.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 22000102
+1 0 0 0 0 1 1 2 22010102
+1 0 0 0 0 2 1 2 22020102
+1 0 0 0 0 3 1 2 22030102
+1 0 0 0 0 4 1 2 22040102
+1 0 0 0 0 5 1 2 22050102
+1 0 0 0 0 6 1 2 22060102
+1 0 0 0 0 7 1 2 22070102
+1 0 0 0 0 8 1 2 22080102
+1 0 0 0 0 9 1 2 22090102
-"Time = 1.000000
--1.350000 23000101.0000000000000
--1.050000 23010101.0000000000000
--0.750000 23020101.0000000000000
--0.450000 23030101.0000000000000
--0.150000 23040101.0000000000000
-0.150000 23050101.0000000000000
-0.450000 23060101.0000000000000
-0.750000 23070101.0000000000000
-1.050000 23080101.0000000000000
-1.350000 23090101.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/txy.yl b/CarpetAttic/Cart3dTest/test/axial-yz/txy.yl
index 7084ff975..ecfc4c7b5 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/txy.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/txy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy y (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 22050002
+0 0 0 0 0 5 1 2 22050102
+0 0 0 0 0 5 2 2 22050202
+0 0 0 0 0 5 3 2 22050302
+0 0 0 0 0 5 4 2 22050402
+0 0 0 0 0 5 5 2 22050502
+0 0 0 0 0 5 6 2 22050602
+0 0 0 0 0 5 7 2 22050702
+0 0 0 0 0 5 8 2 22050802
+0 0 0 0 0 5 9 2 22050902
+0 0 0 0 0 5 10 2 22051002
-"Time = 0.000000
--0.150000 22040001.0000000000000
-0.150000 22040101.0000000000000
-0.450000 22040201.0000000000000
-0.750000 22040301.0000000000000
-1.050000 22040401.0000000000000
-1.350000 22040501.0000000000000
-1.650000 22040601.0000000000000
-1.950000 22040701.0000000000000
-2.250000 22040801.0000000000000
-2.550000 22040901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 -23050102
+1 0 0 0 0 5 1 2 22050102
+1 0 0 0 0 5 2 2 22050202
+1 0 0 0 0 5 3 2 22050302
+1 0 0 0 0 5 4 2 22050402
+1 0 0 0 0 5 5 2 22050502
+1 0 0 0 0 5 6 2 22050602
+1 0 0 0 0 5 7 2 22050702
+1 0 0 0 0 5 8 2 22050802
+1 0 0 0 0 5 9 2 22050902
+1 0 0 0 0 5 10 2 22051002
-"Time = 1.000000
--0.150000 23040100.0000000000000
-0.150000 23040101.0000000000000
-0.450000 23040102.0000000000000
-0.750000 23040103.0000000000000
-1.050000 23040104.0000000000000
-1.350000 23040105.0000000000000
-1.650000 23040106.0000000000000
-1.950000 23040107.0000000000000
-2.250000 23040108.0000000000000
-2.550000 23040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/txy.zl b/CarpetAttic/Cart3dTest/test/axial-yz/txy.zl
index 4ac8fba6e..411fb8576 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/txy.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/txy.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::txy z (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 22050100
+0 0 0 0 0 5 1 1 22050101
+0 0 0 0 0 5 1 2 22050102
+0 0 0 0 0 5 1 3 22050103
+0 0 0 0 0 5 1 4 22050104
+0 0 0 0 0 5 1 5 22050105
+0 0 0 0 0 5 1 6 22050106
+0 0 0 0 0 5 1 7 22050107
+0 0 0 0 0 5 1 8 22050108
+0 0 0 0 0 5 1 9 22050109
+0 0 0 0 0 5 1 10 22050110
+0 0 0 0 0 5 1 11 22050111
-"Time = 0.000000
--0.450000 22040100.0000000000000
--0.150000 22040101.0000000000000
-0.150000 22040102.0000000000000
-0.450000 22040103.0000000000000
-0.750000 22040104.0000000000000
-1.050000 22040105.0000000000000
-1.350000 22040106.0000000000000
-1.650000 22040107.0000000000000
-1.950000 22040108.0000000000000
-2.250000 22040109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 23050202
+1 0 0 0 0 5 1 1 23050102
+1 0 0 0 0 5 1 2 22050102
+1 0 0 0 0 5 1 3 22050103
+1 0 0 0 0 5 1 4 22050104
+1 0 0 0 0 5 1 5 22050105
+1 0 0 0 0 5 1 6 22050106
+1 0 0 0 0 5 1 7 22050107
+1 0 0 0 0 5 1 8 22050108
+1 0 0 0 0 5 1 9 22050109
+1 0 0 0 0 5 1 10 22050110
+1 0 0 0 0 5 1 11 22050111
-"Time = 1.000000
--0.450000 23040201.0000000000000
--0.150000 23040101.0000000000000
-0.150000 22040102.0000000000000
-0.450000 22040103.0000000000000
-0.750000 22040104.0000000000000
-1.050000 22040105.0000000000000
-1.350000 22040106.0000000000000
-1.650000 22040107.0000000000000
-1.950000 22040108.0000000000000
-2.250000 22040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/txz.xl b/CarpetAttic/Cart3dTest/test/axial-yz/txz.xl
index 2d34a01ec..ca6efde6c 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/txz.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/txz.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::txz x (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 23000102
+0 0 0 0 0 1 1 2 23010102
+0 0 0 0 0 2 1 2 23020102
+0 0 0 0 0 3 1 2 23030102
+0 0 0 0 0 4 1 2 23040102
+0 0 0 0 0 5 1 2 23050102
+0 0 0 0 0 6 1 2 23060102
+0 0 0 0 0 7 1 2 23070102
+0 0 0 0 0 8 1 2 23080102
+0 0 0 0 0 9 1 2 23090102
-"Time = 0.000000
--1.350000 23000101.0000000000000
--1.050000 23010101.0000000000000
--0.750000 23020101.0000000000000
--0.450000 23030101.0000000000000
--0.150000 23040101.0000000000000
-0.150000 23050101.0000000000000
-0.450000 23060101.0000000000000
-0.750000 23070101.0000000000000
-1.050000 23080101.0000000000000
-1.350000 23090101.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 23000102
+1 0 0 0 0 1 1 2 23010102
+1 0 0 0 0 2 1 2 23020102
+1 0 0 0 0 3 1 2 23030102
+1 0 0 0 0 4 1 2 23040102
+1 0 0 0 0 5 1 2 23050102
+1 0 0 0 0 6 1 2 23060102
+1 0 0 0 0 7 1 2 23070102
+1 0 0 0 0 8 1 2 23080102
+1 0 0 0 0 9 1 2 23090102
-"Time = 1.000000
--1.350000 -23000101.0000000000000
--1.050000 -23010101.0000000000000
--0.750000 -23020101.0000000000000
--0.450000 -23030101.0000000000000
--0.150000 -23040101.0000000000000
-0.150000 -23050101.0000000000000
-0.450000 -23060101.0000000000000
-0.750000 -23070101.0000000000000
-1.050000 -23080101.0000000000000
-1.350000 -23090101.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/txz.yl b/CarpetAttic/Cart3dTest/test/axial-yz/txz.yl
index d15ce0ec2..a32b76089 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/txz.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/txz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz y (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 23050002
+0 0 0 0 0 5 1 2 23050102
+0 0 0 0 0 5 2 2 23050202
+0 0 0 0 0 5 3 2 23050302
+0 0 0 0 0 5 4 2 23050402
+0 0 0 0 0 5 5 2 23050502
+0 0 0 0 0 5 6 2 23050602
+0 0 0 0 0 5 7 2 23050702
+0 0 0 0 0 5 8 2 23050802
+0 0 0 0 0 5 9 2 23050902
+0 0 0 0 0 5 10 2 23051002
-"Time = 0.000000
--0.150000 23040001.0000000000000
-0.150000 23040101.0000000000000
-0.450000 23040201.0000000000000
-0.750000 23040301.0000000000000
-1.050000 23040401.0000000000000
-1.350000 23040501.0000000000000
-1.650000 23040601.0000000000000
-1.950000 23040701.0000000000000
-2.250000 23040801.0000000000000
-2.550000 23040901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 22050102
+1 0 0 0 0 5 1 2 23050102
+1 0 0 0 0 5 2 2 23050202
+1 0 0 0 0 5 3 2 23050302
+1 0 0 0 0 5 4 2 23050402
+1 0 0 0 0 5 5 2 23050502
+1 0 0 0 0 5 6 2 23050602
+1 0 0 0 0 5 7 2 23050702
+1 0 0 0 0 5 8 2 23050802
+1 0 0 0 0 5 9 2 23050902
+1 0 0 0 0 5 10 2 23051002
-"Time = 1.000000
--0.150000 -23040201.0000000000000
-0.150000 -23040101.0000000000000
-0.450000 -22040102.0000000000000
-0.750000 -22040103.0000000000000
-1.050000 -22040104.0000000000000
-1.350000 -22040105.0000000000000
-1.650000 -22040106.0000000000000
-1.950000 -22040107.0000000000000
-2.250000 -22040108.0000000000000
-2.550000 -22040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/txz.zl b/CarpetAttic/Cart3dTest/test/axial-yz/txz.zl
index e59506089..7caad3155 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/txz.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/txz.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::txz z (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 23050100
+0 0 0 0 0 5 1 1 23050101
+0 0 0 0 0 5 1 2 23050102
+0 0 0 0 0 5 1 3 23050103
+0 0 0 0 0 5 1 4 23050104
+0 0 0 0 0 5 1 5 23050105
+0 0 0 0 0 5 1 6 23050106
+0 0 0 0 0 5 1 7 23050107
+0 0 0 0 0 5 1 8 23050108
+0 0 0 0 0 5 1 9 23050109
+0 0 0 0 0 5 1 10 23050110
+0 0 0 0 0 5 1 11 23050111
-"Time = 0.000000
--0.450000 23040100.0000000000000
--0.150000 23040101.0000000000000
-0.150000 23040102.0000000000000
-0.450000 23040103.0000000000000
-0.750000 23040104.0000000000000
-1.050000 23040105.0000000000000
-1.350000 23040106.0000000000000
-1.650000 23040107.0000000000000
-1.950000 23040108.0000000000000
-2.250000 23040109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 -22050202
+1 0 0 0 0 5 1 1 -22050102
+1 0 0 0 0 5 1 2 23050102
+1 0 0 0 0 5 1 3 23050103
+1 0 0 0 0 5 1 4 23050104
+1 0 0 0 0 5 1 5 23050105
+1 0 0 0 0 5 1 6 23050106
+1 0 0 0 0 5 1 7 23050107
+1 0 0 0 0 5 1 8 23050108
+1 0 0 0 0 5 1 9 23050109
+1 0 0 0 0 5 1 10 23050110
+1 0 0 0 0 5 1 11 23050111
-"Time = 1.000000
--0.450000 -23040102.0000000000000
--0.150000 -23040101.0000000000000
-0.150000 23040102.0000000000000
-0.450000 23040103.0000000000000
-0.750000 23040104.0000000000000
-1.050000 23040105.0000000000000
-1.350000 23040106.0000000000000
-1.650000 23040107.0000000000000
-1.950000 23040108.0000000000000
-2.250000 23040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/tyy.xl b/CarpetAttic/Cart3dTest/test/axial-yz/tyy.xl
index 26e8c094c..ef9352eda 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/tyy.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/tyy.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::tyy x (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 24000102
+0 0 0 0 0 1 1 2 24010102
+0 0 0 0 0 2 1 2 24020102
+0 0 0 0 0 3 1 2 24030102
+0 0 0 0 0 4 1 2 24040102
+0 0 0 0 0 5 1 2 24050102
+0 0 0 0 0 6 1 2 24060102
+0 0 0 0 0 7 1 2 24070102
+0 0 0 0 0 8 1 2 24080102
+0 0 0 0 0 9 1 2 24090102
-"Time = 0.000000
--1.350000 24000101.0000000000000
--1.050000 24010101.0000000000000
--0.750000 24020101.0000000000000
--0.450000 24030101.0000000000000
--0.150000 24040101.0000000000000
-0.150000 24050101.0000000000000
-0.450000 24060101.0000000000000
-0.750000 24070101.0000000000000
-1.050000 24080101.0000000000000
-1.350000 24090101.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 24000102
+1 0 0 0 0 1 1 2 24010102
+1 0 0 0 0 2 1 2 24020102
+1 0 0 0 0 3 1 2 24030102
+1 0 0 0 0 4 1 2 24040102
+1 0 0 0 0 5 1 2 24050102
+1 0 0 0 0 6 1 2 24060102
+1 0 0 0 0 7 1 2 24070102
+1 0 0 0 0 8 1 2 24080102
+1 0 0 0 0 9 1 2 24090102
-"Time = 1.000000
--1.350000 26000101.0000000000000
--1.050000 26010101.0000000000000
--0.750000 26020101.0000000000000
--0.450000 26030101.0000000000000
--0.150000 26040101.0000000000000
-0.150000 26050101.0000000000000
-0.450000 26060101.0000000000000
-0.750000 26070101.0000000000000
-1.050000 26080101.0000000000000
-1.350000 26090101.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/tyy.yl b/CarpetAttic/Cart3dTest/test/axial-yz/tyy.yl
index 3deca57e0..fc646bf17 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/tyy.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/tyy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy y (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 24050002
+0 0 0 0 0 5 1 2 24050102
+0 0 0 0 0 5 2 2 24050202
+0 0 0 0 0 5 3 2 24050302
+0 0 0 0 0 5 4 2 24050402
+0 0 0 0 0 5 5 2 24050502
+0 0 0 0 0 5 6 2 24050602
+0 0 0 0 0 5 7 2 24050702
+0 0 0 0 0 5 8 2 24050802
+0 0 0 0 0 5 9 2 24050902
+0 0 0 0 0 5 10 2 24051002
-"Time = 0.000000
--0.150000 24040001.0000000000000
-0.150000 24040101.0000000000000
-0.450000 24040201.0000000000000
-0.750000 24040301.0000000000000
-1.050000 24040401.0000000000000
-1.350000 24040501.0000000000000
-1.650000 24040601.0000000000000
-1.950000 24040701.0000000000000
-2.250000 24040801.0000000000000
-2.550000 24040901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 26050102
+1 0 0 0 0 5 1 2 24050102
+1 0 0 0 0 5 2 2 24050202
+1 0 0 0 0 5 3 2 24050302
+1 0 0 0 0 5 4 2 24050402
+1 0 0 0 0 5 5 2 24050502
+1 0 0 0 0 5 6 2 24050602
+1 0 0 0 0 5 7 2 24050702
+1 0 0 0 0 5 8 2 24050802
+1 0 0 0 0 5 9 2 24050902
+1 0 0 0 0 5 10 2 24051002
-"Time = 1.000000
--0.150000 26040100.0000000000000
-0.150000 26040101.0000000000000
-0.450000 26040102.0000000000000
-0.750000 26040103.0000000000000
-1.050000 26040104.0000000000000
-1.350000 26040105.0000000000000
-1.650000 26040106.0000000000000
-1.950000 26040107.0000000000000
-2.250000 26040108.0000000000000
-2.550000 26040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/tyy.zl b/CarpetAttic/Cart3dTest/test/axial-yz/tyy.zl
index 8cb81908c..837fdc7fd 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/tyy.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/tyy.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::tyy z (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 24050100
+0 0 0 0 0 5 1 1 24050101
+0 0 0 0 0 5 1 2 24050102
+0 0 0 0 0 5 1 3 24050103
+0 0 0 0 0 5 1 4 24050104
+0 0 0 0 0 5 1 5 24050105
+0 0 0 0 0 5 1 6 24050106
+0 0 0 0 0 5 1 7 24050107
+0 0 0 0 0 5 1 8 24050108
+0 0 0 0 0 5 1 9 24050109
+0 0 0 0 0 5 1 10 24050110
+0 0 0 0 0 5 1 11 24050111
-"Time = 0.000000
--0.450000 24040100.0000000000000
--0.150000 24040101.0000000000000
-0.150000 24040102.0000000000000
-0.450000 24040103.0000000000000
-0.750000 24040104.0000000000000
-1.050000 24040105.0000000000000
-1.350000 24040106.0000000000000
-1.650000 24040107.0000000000000
-1.950000 24040108.0000000000000
-2.250000 24040109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 26050202
+1 0 0 0 0 5 1 1 26050102
+1 0 0 0 0 5 1 2 24050102
+1 0 0 0 0 5 1 3 24050103
+1 0 0 0 0 5 1 4 24050104
+1 0 0 0 0 5 1 5 24050105
+1 0 0 0 0 5 1 6 24050106
+1 0 0 0 0 5 1 7 24050107
+1 0 0 0 0 5 1 8 24050108
+1 0 0 0 0 5 1 9 24050109
+1 0 0 0 0 5 1 10 24050110
+1 0 0 0 0 5 1 11 24050111
-"Time = 1.000000
--0.450000 26040201.0000000000000
--0.150000 26040101.0000000000000
-0.150000 24040102.0000000000000
-0.450000 24040103.0000000000000
-0.750000 24040104.0000000000000
-1.050000 24040105.0000000000000
-1.350000 24040106.0000000000000
-1.650000 24040107.0000000000000
-1.950000 24040108.0000000000000
-2.250000 24040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/tyz.xl b/CarpetAttic/Cart3dTest/test/axial-yz/tyz.xl
index 13af730e9..67e27cf8e 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/tyz.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/tyz.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::tyz x (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 25000102
+0 0 0 0 0 1 1 2 25010102
+0 0 0 0 0 2 1 2 25020102
+0 0 0 0 0 3 1 2 25030102
+0 0 0 0 0 4 1 2 25040102
+0 0 0 0 0 5 1 2 25050102
+0 0 0 0 0 6 1 2 25060102
+0 0 0 0 0 7 1 2 25070102
+0 0 0 0 0 8 1 2 25080102
+0 0 0 0 0 9 1 2 25090102
-"Time = 0.000000
--1.350000 25000101.0000000000000
--1.050000 25010101.0000000000000
--0.750000 25020101.0000000000000
--0.450000 25030101.0000000000000
--0.150000 25040101.0000000000000
-0.150000 25050101.0000000000000
-0.450000 25060101.0000000000000
-0.750000 25070101.0000000000000
-1.050000 25080101.0000000000000
-1.350000 25090101.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 25000102
+1 0 0 0 0 1 1 2 25010102
+1 0 0 0 0 2 1 2 25020102
+1 0 0 0 0 3 1 2 25030102
+1 0 0 0 0 4 1 2 25040102
+1 0 0 0 0 5 1 2 25050102
+1 0 0 0 0 6 1 2 25060102
+1 0 0 0 0 7 1 2 25070102
+1 0 0 0 0 8 1 2 25080102
+1 0 0 0 0 9 1 2 25090102
-"Time = 1.000000
--1.350000 -25000101.0000000000000
--1.050000 -25010101.0000000000000
--0.750000 -25020101.0000000000000
--0.450000 -25030101.0000000000000
--0.150000 -25040101.0000000000000
-0.150000 -25050101.0000000000000
-0.450000 -25060101.0000000000000
-0.750000 -25070101.0000000000000
-1.050000 -25080101.0000000000000
-1.350000 -25090101.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/tyz.yl b/CarpetAttic/Cart3dTest/test/axial-yz/tyz.yl
index 53a524472..cfdf17fb2 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/tyz.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/tyz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz y (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 25050002
+0 0 0 0 0 5 1 2 25050102
+0 0 0 0 0 5 2 2 25050202
+0 0 0 0 0 5 3 2 25050302
+0 0 0 0 0 5 4 2 25050402
+0 0 0 0 0 5 5 2 25050502
+0 0 0 0 0 5 6 2 25050602
+0 0 0 0 0 5 7 2 25050702
+0 0 0 0 0 5 8 2 25050802
+0 0 0 0 0 5 9 2 25050902
+0 0 0 0 0 5 10 2 25051002
-"Time = 0.000000
--0.150000 25040001.0000000000000
-0.150000 25040101.0000000000000
-0.450000 25040201.0000000000000
-0.750000 25040301.0000000000000
-1.050000 25040401.0000000000000
-1.350000 25040501.0000000000000
-1.650000 25040601.0000000000000
-1.950000 25040701.0000000000000
-2.250000 25040801.0000000000000
-2.550000 25040901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 -25050102
+1 0 0 0 0 5 1 2 25050102
+1 0 0 0 0 5 2 2 25050202
+1 0 0 0 0 5 3 2 25050302
+1 0 0 0 0 5 4 2 25050402
+1 0 0 0 0 5 5 2 25050502
+1 0 0 0 0 5 6 2 25050602
+1 0 0 0 0 5 7 2 25050702
+1 0 0 0 0 5 8 2 25050802
+1 0 0 0 0 5 9 2 25050902
+1 0 0 0 0 5 10 2 25051002
-"Time = 1.000000
--0.150000 -25040100.0000000000000
-0.150000 -25040101.0000000000000
-0.450000 -25040102.0000000000000
-0.750000 -25040103.0000000000000
-1.050000 -25040104.0000000000000
-1.350000 -25040105.0000000000000
-1.650000 -25040106.0000000000000
-1.950000 -25040107.0000000000000
-2.250000 -25040108.0000000000000
-2.550000 -25040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/tyz.zl b/CarpetAttic/Cart3dTest/test/axial-yz/tyz.zl
index d68cff5a8..f1e1afd29 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/tyz.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/tyz.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::tyz z (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 25050100
+0 0 0 0 0 5 1 1 25050101
+0 0 0 0 0 5 1 2 25050102
+0 0 0 0 0 5 1 3 25050103
+0 0 0 0 0 5 1 4 25050104
+0 0 0 0 0 5 1 5 25050105
+0 0 0 0 0 5 1 6 25050106
+0 0 0 0 0 5 1 7 25050107
+0 0 0 0 0 5 1 8 25050108
+0 0 0 0 0 5 1 9 25050109
+0 0 0 0 0 5 1 10 25050110
+0 0 0 0 0 5 1 11 25050111
-"Time = 0.000000
--0.450000 25040100.0000000000000
--0.150000 25040101.0000000000000
-0.150000 25040102.0000000000000
-0.450000 25040103.0000000000000
-0.750000 25040104.0000000000000
-1.050000 25040105.0000000000000
-1.350000 25040106.0000000000000
-1.650000 25040107.0000000000000
-1.950000 25040108.0000000000000
-2.250000 25040109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 -25050202
+1 0 0 0 0 5 1 1 -25050102
+1 0 0 0 0 5 1 2 25050102
+1 0 0 0 0 5 1 3 25050103
+1 0 0 0 0 5 1 4 25050104
+1 0 0 0 0 5 1 5 25050105
+1 0 0 0 0 5 1 6 25050106
+1 0 0 0 0 5 1 7 25050107
+1 0 0 0 0 5 1 8 25050108
+1 0 0 0 0 5 1 9 25050109
+1 0 0 0 0 5 1 10 25050110
+1 0 0 0 0 5 1 11 25050111
-"Time = 1.000000
--0.450000 -25040201.0000000000000
--0.150000 -25040101.0000000000000
-0.150000 25040102.0000000000000
-0.450000 25040103.0000000000000
-0.750000 25040104.0000000000000
-1.050000 25040105.0000000000000
-1.350000 25040106.0000000000000
-1.650000 25040107.0000000000000
-1.950000 25040108.0000000000000
-2.250000 25040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/tzz.xl b/CarpetAttic/Cart3dTest/test/axial-yz/tzz.xl
index f099f8b34..432c340cf 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/tzz.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/tzz.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::tzz x (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 26000102
+0 0 0 0 0 1 1 2 26010102
+0 0 0 0 0 2 1 2 26020102
+0 0 0 0 0 3 1 2 26030102
+0 0 0 0 0 4 1 2 26040102
+0 0 0 0 0 5 1 2 26050102
+0 0 0 0 0 6 1 2 26060102
+0 0 0 0 0 7 1 2 26070102
+0 0 0 0 0 8 1 2 26080102
+0 0 0 0 0 9 1 2 26090102
-"Time = 0.000000
--1.350000 26000101.0000000000000
--1.050000 26010101.0000000000000
--0.750000 26020101.0000000000000
--0.450000 26030101.0000000000000
--0.150000 26040101.0000000000000
-0.150000 26050101.0000000000000
-0.450000 26060101.0000000000000
-0.750000 26070101.0000000000000
-1.050000 26080101.0000000000000
-1.350000 26090101.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 26000102
+1 0 0 0 0 1 1 2 26010102
+1 0 0 0 0 2 1 2 26020102
+1 0 0 0 0 3 1 2 26030102
+1 0 0 0 0 4 1 2 26040102
+1 0 0 0 0 5 1 2 26050102
+1 0 0 0 0 6 1 2 26060102
+1 0 0 0 0 7 1 2 26070102
+1 0 0 0 0 8 1 2 26080102
+1 0 0 0 0 9 1 2 26090102
-"Time = 1.000000
--1.350000 26000101.0000000000000
--1.050000 26010101.0000000000000
--0.750000 26020101.0000000000000
--0.450000 26030101.0000000000000
--0.150000 26040101.0000000000000
-0.150000 26050101.0000000000000
-0.450000 26060101.0000000000000
-0.750000 26070101.0000000000000
-1.050000 26080101.0000000000000
-1.350000 26090101.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/tzz.yl b/CarpetAttic/Cart3dTest/test/axial-yz/tzz.yl
index fece48780..96ee8a40f 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/tzz.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/tzz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz y (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 26050002
+0 0 0 0 0 5 1 2 26050102
+0 0 0 0 0 5 2 2 26050202
+0 0 0 0 0 5 3 2 26050302
+0 0 0 0 0 5 4 2 26050402
+0 0 0 0 0 5 5 2 26050502
+0 0 0 0 0 5 6 2 26050602
+0 0 0 0 0 5 7 2 26050702
+0 0 0 0 0 5 8 2 26050802
+0 0 0 0 0 5 9 2 26050902
+0 0 0 0 0 5 10 2 26051002
-"Time = 0.000000
--0.150000 26040001.0000000000000
-0.150000 26040101.0000000000000
-0.450000 26040201.0000000000000
-0.750000 26040301.0000000000000
-1.050000 26040401.0000000000000
-1.350000 26040501.0000000000000
-1.650000 26040601.0000000000000
-1.950000 26040701.0000000000000
-2.250000 26040801.0000000000000
-2.550000 26040901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 24050102
+1 0 0 0 0 5 1 2 26050102
+1 0 0 0 0 5 2 2 26050202
+1 0 0 0 0 5 3 2 26050302
+1 0 0 0 0 5 4 2 26050402
+1 0 0 0 0 5 5 2 26050502
+1 0 0 0 0 5 6 2 26050602
+1 0 0 0 0 5 7 2 26050702
+1 0 0 0 0 5 8 2 26050802
+1 0 0 0 0 5 9 2 26050902
+1 0 0 0 0 5 10 2 26051002
-"Time = 1.000000
--0.150000 26040201.0000000000000
-0.150000 26040101.0000000000000
-0.450000 24040102.0000000000000
-0.750000 24040103.0000000000000
-1.050000 24040104.0000000000000
-1.350000 24040105.0000000000000
-1.650000 24040106.0000000000000
-1.950000 24040107.0000000000000
-2.250000 24040108.0000000000000
-2.550000 24040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/tzz.zl b/CarpetAttic/Cart3dTest/test/axial-yz/tzz.zl
index d4a0a1de0..edfced71c 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/tzz.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/tzz.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::tzz z (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 26050100
+0 0 0 0 0 5 1 1 26050101
+0 0 0 0 0 5 1 2 26050102
+0 0 0 0 0 5 1 3 26050103
+0 0 0 0 0 5 1 4 26050104
+0 0 0 0 0 5 1 5 26050105
+0 0 0 0 0 5 1 6 26050106
+0 0 0 0 0 5 1 7 26050107
+0 0 0 0 0 5 1 8 26050108
+0 0 0 0 0 5 1 9 26050109
+0 0 0 0 0 5 1 10 26050110
+0 0 0 0 0 5 1 11 26050111
-"Time = 0.000000
--0.450000 26040100.0000000000000
--0.150000 26040101.0000000000000
-0.150000 26040102.0000000000000
-0.450000 26040103.0000000000000
-0.750000 26040104.0000000000000
-1.050000 26040105.0000000000000
-1.350000 26040106.0000000000000
-1.650000 26040107.0000000000000
-1.950000 26040108.0000000000000
-2.250000 26040109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 24050202
+1 0 0 0 0 5 1 1 24050102
+1 0 0 0 0 5 1 2 26050102
+1 0 0 0 0 5 1 3 26050103
+1 0 0 0 0 5 1 4 26050104
+1 0 0 0 0 5 1 5 26050105
+1 0 0 0 0 5 1 6 26050106
+1 0 0 0 0 5 1 7 26050107
+1 0 0 0 0 5 1 8 26050108
+1 0 0 0 0 5 1 9 26050109
+1 0 0 0 0 5 1 10 26050110
+1 0 0 0 0 5 1 11 26050111
-"Time = 1.000000
--0.450000 26040102.0000000000000
--0.150000 26040101.0000000000000
-0.150000 26040102.0000000000000
-0.450000 26040103.0000000000000
-0.750000 26040104.0000000000000
-1.050000 26040105.0000000000000
-1.350000 26040106.0000000000000
-1.650000 26040107.0000000000000
-1.950000 26040108.0000000000000
-2.250000 26040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/vx.xl b/CarpetAttic/Cart3dTest/test/axial-yz/vx.xl
index 08d79f6ec..740b6deba 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/vx.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/vx.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::vx x (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 11000102
+0 0 0 0 0 1 1 2 11010102
+0 0 0 0 0 2 1 2 11020102
+0 0 0 0 0 3 1 2 11030102
+0 0 0 0 0 4 1 2 11040102
+0 0 0 0 0 5 1 2 11050102
+0 0 0 0 0 6 1 2 11060102
+0 0 0 0 0 7 1 2 11070102
+0 0 0 0 0 8 1 2 11080102
+0 0 0 0 0 9 1 2 11090102
-"Time = 0.000000
--1.350000 11000101.0000000000000
--1.050000 11010101.0000000000000
--0.750000 11020101.0000000000000
--0.450000 11030101.0000000000000
--0.150000 11040101.0000000000000
-0.150000 11050101.0000000000000
-0.450000 11060101.0000000000000
-0.750000 11070101.0000000000000
-1.050000 11080101.0000000000000
-1.350000 11090101.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 11000102
+1 0 0 0 0 1 1 2 11010102
+1 0 0 0 0 2 1 2 11020102
+1 0 0 0 0 3 1 2 11030102
+1 0 0 0 0 4 1 2 11040102
+1 0 0 0 0 5 1 2 11050102
+1 0 0 0 0 6 1 2 11060102
+1 0 0 0 0 7 1 2 11070102
+1 0 0 0 0 8 1 2 11080102
+1 0 0 0 0 9 1 2 11090102
-"Time = 1.000000
--1.350000 11000101.0000000000000
--1.050000 11010101.0000000000000
--0.750000 11020101.0000000000000
--0.450000 11030101.0000000000000
--0.150000 11040101.0000000000000
-0.150000 11050101.0000000000000
-0.450000 11060101.0000000000000
-0.750000 11070101.0000000000000
-1.050000 11080101.0000000000000
-1.350000 11090101.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/vx.yl b/CarpetAttic/Cart3dTest/test/axial-yz/vx.yl
index 0277ef7d0..8b19cf959 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/vx.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/vx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx y (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 11050002
+0 0 0 0 0 5 1 2 11050102
+0 0 0 0 0 5 2 2 11050202
+0 0 0 0 0 5 3 2 11050302
+0 0 0 0 0 5 4 2 11050402
+0 0 0 0 0 5 5 2 11050502
+0 0 0 0 0 5 6 2 11050602
+0 0 0 0 0 5 7 2 11050702
+0 0 0 0 0 5 8 2 11050802
+0 0 0 0 0 5 9 2 11050902
+0 0 0 0 0 5 10 2 11051002
-"Time = 0.000000
--0.150000 11040001.0000000000000
-0.150000 11040101.0000000000000
-0.450000 11040201.0000000000000
-0.750000 11040301.0000000000000
-1.050000 11040401.0000000000000
-1.350000 11040501.0000000000000
-1.650000 11040601.0000000000000
-1.950000 11040701.0000000000000
-2.250000 11040801.0000000000000
-2.550000 11040901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 11050102
+1 0 0 0 0 5 1 2 11050102
+1 0 0 0 0 5 2 2 11050202
+1 0 0 0 0 5 3 2 11050302
+1 0 0 0 0 5 4 2 11050402
+1 0 0 0 0 5 5 2 11050502
+1 0 0 0 0 5 6 2 11050602
+1 0 0 0 0 5 7 2 11050702
+1 0 0 0 0 5 8 2 11050802
+1 0 0 0 0 5 9 2 11050902
+1 0 0 0 0 5 10 2 11051002
-"Time = 1.000000
--0.150000 11040100.0000000000000
-0.150000 11040101.0000000000000
-0.450000 11040102.0000000000000
-0.750000 11040103.0000000000000
-1.050000 11040104.0000000000000
-1.350000 11040105.0000000000000
-1.650000 11040106.0000000000000
-1.950000 11040107.0000000000000
-2.250000 11040108.0000000000000
-2.550000 11040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/vx.zl b/CarpetAttic/Cart3dTest/test/axial-yz/vx.zl
index eea49d32c..2c7ed7c3f 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/vx.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/vx.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::vx z (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 11050100
+0 0 0 0 0 5 1 1 11050101
+0 0 0 0 0 5 1 2 11050102
+0 0 0 0 0 5 1 3 11050103
+0 0 0 0 0 5 1 4 11050104
+0 0 0 0 0 5 1 5 11050105
+0 0 0 0 0 5 1 6 11050106
+0 0 0 0 0 5 1 7 11050107
+0 0 0 0 0 5 1 8 11050108
+0 0 0 0 0 5 1 9 11050109
+0 0 0 0 0 5 1 10 11050110
+0 0 0 0 0 5 1 11 11050111
-"Time = 0.000000
--0.450000 11040100.0000000000000
--0.150000 11040101.0000000000000
-0.150000 11040102.0000000000000
-0.450000 11040103.0000000000000
-0.750000 11040104.0000000000000
-1.050000 11040105.0000000000000
-1.350000 11040106.0000000000000
-1.650000 11040107.0000000000000
-1.950000 11040108.0000000000000
-2.250000 11040109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 11050202
+1 0 0 0 0 5 1 1 11050102
+1 0 0 0 0 5 1 2 11050102
+1 0 0 0 0 5 1 3 11050103
+1 0 0 0 0 5 1 4 11050104
+1 0 0 0 0 5 1 5 11050105
+1 0 0 0 0 5 1 6 11050106
+1 0 0 0 0 5 1 7 11050107
+1 0 0 0 0 5 1 8 11050108
+1 0 0 0 0 5 1 9 11050109
+1 0 0 0 0 5 1 10 11050110
+1 0 0 0 0 5 1 11 11050111
-"Time = 1.000000
--0.450000 11040201.0000000000000
--0.150000 11040101.0000000000000
-0.150000 11040102.0000000000000
-0.450000 11040103.0000000000000
-0.750000 11040104.0000000000000
-1.050000 11040105.0000000000000
-1.350000 11040106.0000000000000
-1.650000 11040107.0000000000000
-1.950000 11040108.0000000000000
-2.250000 11040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/vy.xl b/CarpetAttic/Cart3dTest/test/axial-yz/vy.xl
index 780d014db..d41ff6c7d 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/vy.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/vy.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::vy x (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 12000102
+0 0 0 0 0 1 1 2 12010102
+0 0 0 0 0 2 1 2 12020102
+0 0 0 0 0 3 1 2 12030102
+0 0 0 0 0 4 1 2 12040102
+0 0 0 0 0 5 1 2 12050102
+0 0 0 0 0 6 1 2 12060102
+0 0 0 0 0 7 1 2 12070102
+0 0 0 0 0 8 1 2 12080102
+0 0 0 0 0 9 1 2 12090102
-"Time = 0.000000
--1.350000 12000101.0000000000000
--1.050000 12010101.0000000000000
--0.750000 12020101.0000000000000
--0.450000 12030101.0000000000000
--0.150000 12040101.0000000000000
-0.150000 12050101.0000000000000
-0.450000 12060101.0000000000000
-0.750000 12070101.0000000000000
-1.050000 12080101.0000000000000
-1.350000 12090101.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 12000102
+1 0 0 0 0 1 1 2 12010102
+1 0 0 0 0 2 1 2 12020102
+1 0 0 0 0 3 1 2 12030102
+1 0 0 0 0 4 1 2 12040102
+1 0 0 0 0 5 1 2 12050102
+1 0 0 0 0 6 1 2 12060102
+1 0 0 0 0 7 1 2 12070102
+1 0 0 0 0 8 1 2 12080102
+1 0 0 0 0 9 1 2 12090102
-"Time = 1.000000
--1.350000 13000101.0000000000000
--1.050000 13010101.0000000000000
--0.750000 13020101.0000000000000
--0.450000 13030101.0000000000000
--0.150000 13040101.0000000000000
-0.150000 13050101.0000000000000
-0.450000 13060101.0000000000000
-0.750000 13070101.0000000000000
-1.050000 13080101.0000000000000
-1.350000 13090101.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/vy.yl b/CarpetAttic/Cart3dTest/test/axial-yz/vy.yl
index 41749b911..f57441a74 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/vy.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/vy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy y (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 12050002
+0 0 0 0 0 5 1 2 12050102
+0 0 0 0 0 5 2 2 12050202
+0 0 0 0 0 5 3 2 12050302
+0 0 0 0 0 5 4 2 12050402
+0 0 0 0 0 5 5 2 12050502
+0 0 0 0 0 5 6 2 12050602
+0 0 0 0 0 5 7 2 12050702
+0 0 0 0 0 5 8 2 12050802
+0 0 0 0 0 5 9 2 12050902
+0 0 0 0 0 5 10 2 12051002
-"Time = 0.000000
--0.150000 12040001.0000000000000
-0.150000 12040101.0000000000000
-0.450000 12040201.0000000000000
-0.750000 12040301.0000000000000
-1.050000 12040401.0000000000000
-1.350000 12040501.0000000000000
-1.650000 12040601.0000000000000
-1.950000 12040701.0000000000000
-2.250000 12040801.0000000000000
-2.550000 12040901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 -13050102
+1 0 0 0 0 5 1 2 12050102
+1 0 0 0 0 5 2 2 12050202
+1 0 0 0 0 5 3 2 12050302
+1 0 0 0 0 5 4 2 12050402
+1 0 0 0 0 5 5 2 12050502
+1 0 0 0 0 5 6 2 12050602
+1 0 0 0 0 5 7 2 12050702
+1 0 0 0 0 5 8 2 12050802
+1 0 0 0 0 5 9 2 12050902
+1 0 0 0 0 5 10 2 12051002
-"Time = 1.000000
--0.150000 13040100.0000000000000
-0.150000 13040101.0000000000000
-0.450000 13040102.0000000000000
-0.750000 13040103.0000000000000
-1.050000 13040104.0000000000000
-1.350000 13040105.0000000000000
-1.650000 13040106.0000000000000
-1.950000 13040107.0000000000000
-2.250000 13040108.0000000000000
-2.550000 13040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/vy.zl b/CarpetAttic/Cart3dTest/test/axial-yz/vy.zl
index 1e9144829..b50c5c8cb 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/vy.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/vy.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::vy z (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 12050100
+0 0 0 0 0 5 1 1 12050101
+0 0 0 0 0 5 1 2 12050102
+0 0 0 0 0 5 1 3 12050103
+0 0 0 0 0 5 1 4 12050104
+0 0 0 0 0 5 1 5 12050105
+0 0 0 0 0 5 1 6 12050106
+0 0 0 0 0 5 1 7 12050107
+0 0 0 0 0 5 1 8 12050108
+0 0 0 0 0 5 1 9 12050109
+0 0 0 0 0 5 1 10 12050110
+0 0 0 0 0 5 1 11 12050111
-"Time = 0.000000
--0.450000 12040100.0000000000000
--0.150000 12040101.0000000000000
-0.150000 12040102.0000000000000
-0.450000 12040103.0000000000000
-0.750000 12040104.0000000000000
-1.050000 12040105.0000000000000
-1.350000 12040106.0000000000000
-1.650000 12040107.0000000000000
-1.950000 12040108.0000000000000
-2.250000 12040109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 13050202
+1 0 0 0 0 5 1 1 13050102
+1 0 0 0 0 5 1 2 12050102
+1 0 0 0 0 5 1 3 12050103
+1 0 0 0 0 5 1 4 12050104
+1 0 0 0 0 5 1 5 12050105
+1 0 0 0 0 5 1 6 12050106
+1 0 0 0 0 5 1 7 12050107
+1 0 0 0 0 5 1 8 12050108
+1 0 0 0 0 5 1 9 12050109
+1 0 0 0 0 5 1 10 12050110
+1 0 0 0 0 5 1 11 12050111
-"Time = 1.000000
--0.450000 13040201.0000000000000
--0.150000 13040101.0000000000000
-0.150000 12040102.0000000000000
-0.450000 12040103.0000000000000
-0.750000 12040104.0000000000000
-1.050000 12040105.0000000000000
-1.350000 12040106.0000000000000
-1.650000 12040107.0000000000000
-1.950000 12040108.0000000000000
-2.250000 12040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/vz.xl b/CarpetAttic/Cart3dTest/test/axial-yz/vz.xl
index d2c16f94f..549a27c07 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/vz.xl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/vz.xl
@@ -1,26 +1,32 @@
+# CART3DTEST::vz x (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 13000102
+0 0 0 0 0 1 1 2 13010102
+0 0 0 0 0 2 1 2 13020102
+0 0 0 0 0 3 1 2 13030102
+0 0 0 0 0 4 1 2 13040102
+0 0 0 0 0 5 1 2 13050102
+0 0 0 0 0 6 1 2 13060102
+0 0 0 0 0 7 1 2 13070102
+0 0 0 0 0 8 1 2 13080102
+0 0 0 0 0 9 1 2 13090102
-"Time = 0.000000
--1.350000 13000101.0000000000000
--1.050000 13010101.0000000000000
--0.750000 13020101.0000000000000
--0.450000 13030101.0000000000000
--0.150000 13040101.0000000000000
-0.150000 13050101.0000000000000
-0.450000 13060101.0000000000000
-0.750000 13070101.0000000000000
-1.050000 13080101.0000000000000
-1.350000 13090101.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 13000102
+1 0 0 0 0 1 1 2 13010102
+1 0 0 0 0 2 1 2 13020102
+1 0 0 0 0 3 1 2 13030102
+1 0 0 0 0 4 1 2 13040102
+1 0 0 0 0 5 1 2 13050102
+1 0 0 0 0 6 1 2 13060102
+1 0 0 0 0 7 1 2 13070102
+1 0 0 0 0 8 1 2 13080102
+1 0 0 0 0 9 1 2 13090102
-"Time = 1.000000
--1.350000 -13000101.0000000000000
--1.050000 -13010101.0000000000000
--0.750000 -13020101.0000000000000
--0.450000 -13030101.0000000000000
--0.150000 -13040101.0000000000000
-0.150000 -13050101.0000000000000
-0.450000 -13060101.0000000000000
-0.750000 -13070101.0000000000000
-1.050000 -13080101.0000000000000
-1.350000 -13090101.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/vz.yl b/CarpetAttic/Cart3dTest/test/axial-yz/vz.yl
index c2564f23f..eb1c4ea24 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/vz.yl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/vz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz y (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 13050002
+0 0 0 0 0 5 1 2 13050102
+0 0 0 0 0 5 2 2 13050202
+0 0 0 0 0 5 3 2 13050302
+0 0 0 0 0 5 4 2 13050402
+0 0 0 0 0 5 5 2 13050502
+0 0 0 0 0 5 6 2 13050602
+0 0 0 0 0 5 7 2 13050702
+0 0 0 0 0 5 8 2 13050802
+0 0 0 0 0 5 9 2 13050902
+0 0 0 0 0 5 10 2 13051002
-"Time = 0.000000
--0.150000 13040001.0000000000000
-0.150000 13040101.0000000000000
-0.450000 13040201.0000000000000
-0.750000 13040301.0000000000000
-1.050000 13040401.0000000000000
-1.350000 13040501.0000000000000
-1.650000 13040601.0000000000000
-1.950000 13040701.0000000000000
-2.250000 13040801.0000000000000
-2.550000 13040901.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 12050102
+1 0 0 0 0 5 1 2 13050102
+1 0 0 0 0 5 2 2 13050202
+1 0 0 0 0 5 3 2 13050302
+1 0 0 0 0 5 4 2 13050402
+1 0 0 0 0 5 5 2 13050502
+1 0 0 0 0 5 6 2 13050602
+1 0 0 0 0 5 7 2 13050702
+1 0 0 0 0 5 8 2 13050802
+1 0 0 0 0 5 9 2 13050902
+1 0 0 0 0 5 10 2 13051002
-"Time = 1.000000
--0.150000 -13040201.0000000000000
-0.150000 -13040101.0000000000000
-0.450000 -12040102.0000000000000
-0.750000 -12040103.0000000000000
-1.050000 -12040104.0000000000000
-1.350000 -12040105.0000000000000
-1.650000 -12040106.0000000000000
-1.950000 -12040107.0000000000000
-2.250000 -12040108.0000000000000
-2.550000 -12040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial-yz/vz.zl b/CarpetAttic/Cart3dTest/test/axial-yz/vz.zl
index fb59bedcd..4cb962eb9 100644
--- a/CarpetAttic/Cart3dTest/test/axial-yz/vz.zl
+++ b/CarpetAttic/Cart3dTest/test/axial-yz/vz.zl
@@ -1,26 +1,36 @@
+# CART3DTEST::vz z (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 13050100
+0 0 0 0 0 5 1 1 13050101
+0 0 0 0 0 5 1 2 13050102
+0 0 0 0 0 5 1 3 13050103
+0 0 0 0 0 5 1 4 13050104
+0 0 0 0 0 5 1 5 13050105
+0 0 0 0 0 5 1 6 13050106
+0 0 0 0 0 5 1 7 13050107
+0 0 0 0 0 5 1 8 13050108
+0 0 0 0 0 5 1 9 13050109
+0 0 0 0 0 5 1 10 13050110
+0 0 0 0 0 5 1 11 13050111
-"Time = 0.000000
--0.450000 13040100.0000000000000
--0.150000 13040101.0000000000000
-0.150000 13040102.0000000000000
-0.450000 13040103.0000000000000
-0.750000 13040104.0000000000000
-1.050000 13040105.0000000000000
-1.350000 13040106.0000000000000
-1.650000 13040107.0000000000000
-1.950000 13040108.0000000000000
-2.250000 13040109.0000000000000
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 -12050202
+1 0 0 0 0 5 1 1 -12050102
+1 0 0 0 0 5 1 2 13050102
+1 0 0 0 0 5 1 3 13050103
+1 0 0 0 0 5 1 4 13050104
+1 0 0 0 0 5 1 5 13050105
+1 0 0 0 0 5 1 6 13050106
+1 0 0 0 0 5 1 7 13050107
+1 0 0 0 0 5 1 8 13050108
+1 0 0 0 0 5 1 9 13050109
+1 0 0 0 0 5 1 10 13050110
+1 0 0 0 0 5 1 11 13050111
-"Time = 1.000000
--0.450000 -13040102.0000000000000
--0.150000 -13040101.0000000000000
-0.150000 13040102.0000000000000
-0.450000 13040103.0000000000000
-0.750000 13040104.0000000000000
-1.050000 13040105.0000000000000
-1.350000 13040106.0000000000000
-1.650000 13040107.0000000000000
-1.950000 13040108.0000000000000
-2.250000 13040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/ax.xl b/CarpetAttic/Cart3dTest/test/axial/ax.xl
index 05c0099da..f3c85f513 100644
--- a/CarpetAttic/Cart3dTest/test/axial/ax.xl
+++ b/CarpetAttic/Cart3dTest/test/axial/ax.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax x (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 31000105
+0 0 0 0 0 1 1 5 31010105
+0 0 0 0 0 2 1 5 31020105
+0 0 0 0 0 3 1 5 31030105
+0 0 0 0 0 4 1 5 31040105
+0 0 0 0 0 5 1 5 31050105
+0 0 0 0 0 6 1 5 31060105
+0 0 0 0 0 7 1 5 31070105
+0 0 0 0 0 8 1 5 31080105
+0 0 0 0 0 9 1 5 31090105
-"Time = 0.000000
--0.150000 31000104.0000000000000
-0.150000 31010104.0000000000000
-0.450000 31020104.0000000000000
-0.750000 31030104.0000000000000
-1.050000 31040104.0000000000000
-1.350000 31050104.0000000000000
-1.650000 31060104.0000000000000
-1.950000 31070104.0000000000000
-2.250000 31080104.0000000000000
-2.550000 31090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 32010105
+1 0 0 0 0 1 1 5 31010105
+1 0 0 0 0 2 1 5 31020105
+1 0 0 0 0 3 1 5 31030105
+1 0 0 0 0 4 1 5 31040105
+1 0 0 0 0 5 1 5 31050105
+1 0 0 0 0 6 1 5 31060105
+1 0 0 0 0 7 1 5 31070105
+1 0 0 0 0 8 1 5 31080105
+1 0 0 0 0 9 1 5 31090105
+
-"Time = 1.000000
--0.150000 32010104.0000000000000
-0.150000 31010104.0000000000000
-0.450000 31020104.0000000000000
-0.750000 31030104.0000000000000
-1.050000 31040104.0000000000000
-1.350000 31050104.0000000000000
-1.650000 31060104.0000000000000
-1.950000 31070104.0000000000000
-2.250000 31080104.0000000000000
-2.550000 31090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/ax.yl b/CarpetAttic/Cart3dTest/test/axial/ax.yl
index 23a9aada3..10079a923 100644
--- a/CarpetAttic/Cart3dTest/test/axial/ax.yl
+++ b/CarpetAttic/Cart3dTest/test/axial/ax.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax y (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 0 5 31010005
+0 0 0 0 0 1 1 5 31010105
+0 0 0 0 0 1 2 5 31010205
+0 0 0 0 0 1 3 5 31010305
+0 0 0 0 0 1 4 5 31010405
+0 0 0 0 0 1 5 5 31010505
+0 0 0 0 0 1 6 5 31010605
+0 0 0 0 0 1 7 5 31010705
+0 0 0 0 0 1 8 5 31010805
+0 0 0 0 0 1 9 5 31010905
-"Time = 0.000000
--0.150000 31010004.0000000000000
-0.150000 31010104.0000000000000
-0.450000 31010204.0000000000000
-0.750000 31010304.0000000000000
-1.050000 31010404.0000000000000
-1.350000 31010504.0000000000000
-1.650000 31010604.0000000000000
-1.950000 31010704.0000000000000
-2.250000 31010804.0000000000000
-2.550000 31010904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 0 5 -32010105
+1 0 0 0 0 1 1 5 31010105
+1 0 0 0 0 1 2 5 31010205
+1 0 0 0 0 1 3 5 31010305
+1 0 0 0 0 1 4 5 31010405
+1 0 0 0 0 1 5 5 31010505
+1 0 0 0 0 1 6 5 31010605
+1 0 0 0 0 1 7 5 31010705
+1 0 0 0 0 1 8 5 31010805
+1 0 0 0 0 1 9 5 31010905
+
-"Time = 1.000000
--0.150000 -32010104.0000000000000
-0.150000 31010104.0000000000000
-0.450000 31010204.0000000000000
-0.750000 31010304.0000000000000
-1.050000 31010404.0000000000000
-1.350000 31010504.0000000000000
-1.650000 31010604.0000000000000
-1.950000 31010704.0000000000000
-2.250000 31010804.0000000000000
-2.550000 31010904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/ax.zl b/CarpetAttic/Cart3dTest/test/axial/ax.zl
index e1c4d60c1..991b16d53 100644
--- a/CarpetAttic/Cart3dTest/test/axial/ax.zl
+++ b/CarpetAttic/Cart3dTest/test/axial/ax.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax z (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 1 0 31010100
+0 0 0 0 0 1 1 1 31010101
+0 0 0 0 0 1 1 2 31010102
+0 0 0 0 0 1 1 3 31010103
+0 0 0 0 0 1 1 4 31010104
+0 0 0 0 0 1 1 5 31010105
+0 0 0 0 0 1 1 6 31010106
+0 0 0 0 0 1 1 7 31010107
+0 0 0 0 0 1 1 8 31010108
+0 0 0 0 0 1 1 9 31010109
-"Time = 0.000000
--1.350000 31010100.0000000000000
--1.050000 31010101.0000000000000
--0.750000 31010102.0000000000000
--0.450000 31010103.0000000000000
--0.150000 31010104.0000000000000
-0.150000 31010105.0000000000000
-0.450000 31010106.0000000000000
-0.750000 31010107.0000000000000
-1.050000 31010108.0000000000000
-1.350000 31010109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 1 0 31010100
+1 0 0 0 0 1 1 1 31010101
+1 0 0 0 0 1 1 2 31010102
+1 0 0 0 0 1 1 3 31010103
+1 0 0 0 0 1 1 4 31010104
+1 0 0 0 0 1 1 5 31010105
+1 0 0 0 0 1 1 6 31010106
+1 0 0 0 0 1 1 7 31010107
+1 0 0 0 0 1 1 8 31010108
+1 0 0 0 0 1 1 9 31010109
+
-"Time = 1.000000
--1.350000 31010100.0000000000000
--1.050000 31010101.0000000000000
--0.750000 31010102.0000000000000
--0.450000 31010103.0000000000000
--0.150000 31010104.0000000000000
-0.150000 31010105.0000000000000
-0.450000 31010106.0000000000000
-0.750000 31010107.0000000000000
-1.050000 31010108.0000000000000
-1.350000 31010109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/ay.xl b/CarpetAttic/Cart3dTest/test/axial/ay.xl
index bcd8abcc8..8a7d8e673 100644
--- a/CarpetAttic/Cart3dTest/test/axial/ay.xl
+++ b/CarpetAttic/Cart3dTest/test/axial/ay.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay x (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 32000105
+0 0 0 0 0 1 1 5 32010105
+0 0 0 0 0 2 1 5 32020105
+0 0 0 0 0 3 1 5 32030105
+0 0 0 0 0 4 1 5 32040105
+0 0 0 0 0 5 1 5 32050105
+0 0 0 0 0 6 1 5 32060105
+0 0 0 0 0 7 1 5 32070105
+0 0 0 0 0 8 1 5 32080105
+0 0 0 0 0 9 1 5 32090105
-"Time = 0.000000
--0.150000 32000104.0000000000000
-0.150000 32010104.0000000000000
-0.450000 32020104.0000000000000
-0.750000 32030104.0000000000000
-1.050000 32040104.0000000000000
-1.350000 32050104.0000000000000
-1.650000 32060104.0000000000000
-1.950000 32070104.0000000000000
-2.250000 32080104.0000000000000
-2.550000 32090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 -31010105
+1 0 0 0 0 1 1 5 32010105
+1 0 0 0 0 2 1 5 32020105
+1 0 0 0 0 3 1 5 32030105
+1 0 0 0 0 4 1 5 32040105
+1 0 0 0 0 5 1 5 32050105
+1 0 0 0 0 6 1 5 32060105
+1 0 0 0 0 7 1 5 32070105
+1 0 0 0 0 8 1 5 32080105
+1 0 0 0 0 9 1 5 32090105
+
-"Time = 1.000000
--0.150000 -31010104.0000000000000
-0.150000 32010104.0000000000000
-0.450000 32020104.0000000000000
-0.750000 32030104.0000000000000
-1.050000 32040104.0000000000000
-1.350000 32050104.0000000000000
-1.650000 32060104.0000000000000
-1.950000 32070104.0000000000000
-2.250000 32080104.0000000000000
-2.550000 32090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/ay.yl b/CarpetAttic/Cart3dTest/test/axial/ay.yl
index 5d0f2df71..c3d66a5d4 100644
--- a/CarpetAttic/Cart3dTest/test/axial/ay.yl
+++ b/CarpetAttic/Cart3dTest/test/axial/ay.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay y (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 0 5 32010005
+0 0 0 0 0 1 1 5 32010105
+0 0 0 0 0 1 2 5 32010205
+0 0 0 0 0 1 3 5 32010305
+0 0 0 0 0 1 4 5 32010405
+0 0 0 0 0 1 5 5 32010505
+0 0 0 0 0 1 6 5 32010605
+0 0 0 0 0 1 7 5 32010705
+0 0 0 0 0 1 8 5 32010805
+0 0 0 0 0 1 9 5 32010905
-"Time = 0.000000
--0.150000 32010004.0000000000000
-0.150000 32010104.0000000000000
-0.450000 32010204.0000000000000
-0.750000 32010304.0000000000000
-1.050000 32010404.0000000000000
-1.350000 32010504.0000000000000
-1.650000 32010604.0000000000000
-1.950000 32010704.0000000000000
-2.250000 32010804.0000000000000
-2.550000 32010904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 0 5 31010105
+1 0 0 0 0 1 1 5 32010105
+1 0 0 0 0 1 2 5 32010205
+1 0 0 0 0 1 3 5 32010305
+1 0 0 0 0 1 4 5 32010405
+1 0 0 0 0 1 5 5 32010505
+1 0 0 0 0 1 6 5 32010605
+1 0 0 0 0 1 7 5 32010705
+1 0 0 0 0 1 8 5 32010805
+1 0 0 0 0 1 9 5 32010905
+
-"Time = 1.000000
--0.150000 31010104.0000000000000
-0.150000 32010104.0000000000000
-0.450000 32010204.0000000000000
-0.750000 32010304.0000000000000
-1.050000 32010404.0000000000000
-1.350000 32010504.0000000000000
-1.650000 32010604.0000000000000
-1.950000 32010704.0000000000000
-2.250000 32010804.0000000000000
-2.550000 32010904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/ay.zl b/CarpetAttic/Cart3dTest/test/axial/ay.zl
index 20d62dea6..9025fd3da 100644
--- a/CarpetAttic/Cart3dTest/test/axial/ay.zl
+++ b/CarpetAttic/Cart3dTest/test/axial/ay.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay z (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 1 0 32010100
+0 0 0 0 0 1 1 1 32010101
+0 0 0 0 0 1 1 2 32010102
+0 0 0 0 0 1 1 3 32010103
+0 0 0 0 0 1 1 4 32010104
+0 0 0 0 0 1 1 5 32010105
+0 0 0 0 0 1 1 6 32010106
+0 0 0 0 0 1 1 7 32010107
+0 0 0 0 0 1 1 8 32010108
+0 0 0 0 0 1 1 9 32010109
-"Time = 0.000000
--1.350000 32010100.0000000000000
--1.050000 32010101.0000000000000
--0.750000 32010102.0000000000000
--0.450000 32010103.0000000000000
--0.150000 32010104.0000000000000
-0.150000 32010105.0000000000000
-0.450000 32010106.0000000000000
-0.750000 32010107.0000000000000
-1.050000 32010108.0000000000000
-1.350000 32010109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 1 0 32010100
+1 0 0 0 0 1 1 1 32010101
+1 0 0 0 0 1 1 2 32010102
+1 0 0 0 0 1 1 3 32010103
+1 0 0 0 0 1 1 4 32010104
+1 0 0 0 0 1 1 5 32010105
+1 0 0 0 0 1 1 6 32010106
+1 0 0 0 0 1 1 7 32010107
+1 0 0 0 0 1 1 8 32010108
+1 0 0 0 0 1 1 9 32010109
+
-"Time = 1.000000
--1.350000 32010100.0000000000000
--1.050000 32010101.0000000000000
--0.750000 32010102.0000000000000
--0.450000 32010103.0000000000000
--0.150000 32010104.0000000000000
-0.150000 32010105.0000000000000
-0.450000 32010106.0000000000000
-0.750000 32010107.0000000000000
-1.050000 32010108.0000000000000
-1.350000 32010109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/az.xl b/CarpetAttic/Cart3dTest/test/axial/az.xl
index 4820c2c92..2bd8aaaa3 100644
--- a/CarpetAttic/Cart3dTest/test/axial/az.xl
+++ b/CarpetAttic/Cart3dTest/test/axial/az.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::az x (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 33000105
+0 0 0 0 0 1 1 5 33010105
+0 0 0 0 0 2 1 5 33020105
+0 0 0 0 0 3 1 5 33030105
+0 0 0 0 0 4 1 5 33040105
+0 0 0 0 0 5 1 5 33050105
+0 0 0 0 0 6 1 5 33060105
+0 0 0 0 0 7 1 5 33070105
+0 0 0 0 0 8 1 5 33080105
+0 0 0 0 0 9 1 5 33090105
-"Time = 0.000000
--0.150000 33000104.0000000000000
-0.150000 33010104.0000000000000
-0.450000 33020104.0000000000000
-0.750000 33030104.0000000000000
-1.050000 33040104.0000000000000
-1.350000 33050104.0000000000000
-1.650000 33060104.0000000000000
-1.950000 33070104.0000000000000
-2.250000 33080104.0000000000000
-2.550000 33090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 33010105
+1 0 0 0 0 1 1 5 33010105
+1 0 0 0 0 2 1 5 33020105
+1 0 0 0 0 3 1 5 33030105
+1 0 0 0 0 4 1 5 33040105
+1 0 0 0 0 5 1 5 33050105
+1 0 0 0 0 6 1 5 33060105
+1 0 0 0 0 7 1 5 33070105
+1 0 0 0 0 8 1 5 33080105
+1 0 0 0 0 9 1 5 33090105
+
-"Time = 1.000000
--0.150000 33010104.0000000000000
-0.150000 33010104.0000000000000
-0.450000 33020104.0000000000000
-0.750000 33030104.0000000000000
-1.050000 33040104.0000000000000
-1.350000 33050104.0000000000000
-1.650000 33060104.0000000000000
-1.950000 33070104.0000000000000
-2.250000 33080104.0000000000000
-2.550000 33090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/az.yl b/CarpetAttic/Cart3dTest/test/axial/az.yl
index 24836ed5a..cb2644b10 100644
--- a/CarpetAttic/Cart3dTest/test/axial/az.yl
+++ b/CarpetAttic/Cart3dTest/test/axial/az.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::az y (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 0 5 33010005
+0 0 0 0 0 1 1 5 33010105
+0 0 0 0 0 1 2 5 33010205
+0 0 0 0 0 1 3 5 33010305
+0 0 0 0 0 1 4 5 33010405
+0 0 0 0 0 1 5 5 33010505
+0 0 0 0 0 1 6 5 33010605
+0 0 0 0 0 1 7 5 33010705
+0 0 0 0 0 1 8 5 33010805
+0 0 0 0 0 1 9 5 33010905
-"Time = 0.000000
--0.150000 33010004.0000000000000
-0.150000 33010104.0000000000000
-0.450000 33010204.0000000000000
-0.750000 33010304.0000000000000
-1.050000 33010404.0000000000000
-1.350000 33010504.0000000000000
-1.650000 33010604.0000000000000
-1.950000 33010704.0000000000000
-2.250000 33010804.0000000000000
-2.550000 33010904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 0 5 33010105
+1 0 0 0 0 1 1 5 33010105
+1 0 0 0 0 1 2 5 33010205
+1 0 0 0 0 1 3 5 33010305
+1 0 0 0 0 1 4 5 33010405
+1 0 0 0 0 1 5 5 33010505
+1 0 0 0 0 1 6 5 33010605
+1 0 0 0 0 1 7 5 33010705
+1 0 0 0 0 1 8 5 33010805
+1 0 0 0 0 1 9 5 33010905
+
-"Time = 1.000000
--0.150000 33010104.0000000000000
-0.150000 33010104.0000000000000
-0.450000 33010204.0000000000000
-0.750000 33010304.0000000000000
-1.050000 33010404.0000000000000
-1.350000 33010504.0000000000000
-1.650000 33010604.0000000000000
-1.950000 33010704.0000000000000
-2.250000 33010804.0000000000000
-2.550000 33010904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/az.zl b/CarpetAttic/Cart3dTest/test/axial/az.zl
index 0f05121e9..a17465fb8 100644
--- a/CarpetAttic/Cart3dTest/test/axial/az.zl
+++ b/CarpetAttic/Cart3dTest/test/axial/az.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::az z (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 1 0 33010100
+0 0 0 0 0 1 1 1 33010101
+0 0 0 0 0 1 1 2 33010102
+0 0 0 0 0 1 1 3 33010103
+0 0 0 0 0 1 1 4 33010104
+0 0 0 0 0 1 1 5 33010105
+0 0 0 0 0 1 1 6 33010106
+0 0 0 0 0 1 1 7 33010107
+0 0 0 0 0 1 1 8 33010108
+0 0 0 0 0 1 1 9 33010109
-"Time = 0.000000
--1.350000 33010100.0000000000000
--1.050000 33010101.0000000000000
--0.750000 33010102.0000000000000
--0.450000 33010103.0000000000000
--0.150000 33010104.0000000000000
-0.150000 33010105.0000000000000
-0.450000 33010106.0000000000000
-0.750000 33010107.0000000000000
-1.050000 33010108.0000000000000
-1.350000 33010109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 1 0 33010100
+1 0 0 0 0 1 1 1 33010101
+1 0 0 0 0 1 1 2 33010102
+1 0 0 0 0 1 1 3 33010103
+1 0 0 0 0 1 1 4 33010104
+1 0 0 0 0 1 1 5 33010105
+1 0 0 0 0 1 1 6 33010106
+1 0 0 0 0 1 1 7 33010107
+1 0 0 0 0 1 1 8 33010108
+1 0 0 0 0 1 1 9 33010109
+
-"Time = 1.000000
--1.350000 33010100.0000000000000
--1.050000 33010101.0000000000000
--0.750000 33010102.0000000000000
--0.450000 33010103.0000000000000
--0.150000 33010104.0000000000000
-0.150000 33010105.0000000000000
-0.450000 33010106.0000000000000
-0.750000 33010107.0000000000000
-1.050000 33010108.0000000000000
-1.350000 33010109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/cart3d_x.xl b/CarpetAttic/Cart3dTest/test/axial/cart3d_x.xl
index b2abd0b7f..be86e5f0b 100644
--- a/CarpetAttic/Cart3dTest/test/axial/cart3d_x.xl
+++ b/CarpetAttic/Cart3dTest/test/axial/cart3d_x.xl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x x (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 -0.15
+0 0 0 0 0 1 1 5 0.15
+0 0 0 0 0 2 1 5 0.45
+0 0 0 0 0 3 1 5 0.75
+0 0 0 0 0 4 1 5 1.05
+0 0 0 0 0 5 1 5 1.35
+0 0 0 0 0 6 1 5 1.65
+0 0 0 0 0 7 1 5 1.95
+0 0 0 0 0 8 1 5 2.25
+0 0 0 0 0 9 1 5 2.55
-"Time = 0.000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
-2.550000 2.5500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 -0.15
+1 0 0 0 0 1 1 5 0.15
+1 0 0 0 0 2 1 5 0.45
+1 0 0 0 0 3 1 5 0.75
+1 0 0 0 0 4 1 5 1.05
+1 0 0 0 0 5 1 5 1.35
+1 0 0 0 0 6 1 5 1.65
+1 0 0 0 0 7 1 5 1.95
+1 0 0 0 0 8 1 5 2.25
+1 0 0 0 0 9 1 5 2.55
+
-"Time = 1.000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
-2.550000 2.5500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/cart3d_x.yl b/CarpetAttic/Cart3dTest/test/axial/cart3d_x.yl
index 042fd8cff..b8aa9ff5b 100644
--- a/CarpetAttic/Cart3dTest/test/axial/cart3d_x.yl
+++ b/CarpetAttic/Cart3dTest/test/axial/cart3d_x.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x y (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 0 5 0.15
+0 0 0 0 0 1 1 5 0.15
+0 0 0 0 0 1 2 5 0.15
+0 0 0 0 0 1 3 5 0.15
+0 0 0 0 0 1 4 5 0.15
+0 0 0 0 0 1 5 5 0.15
+0 0 0 0 0 1 6 5 0.15
+0 0 0 0 0 1 7 5 0.15
+0 0 0 0 0 1 8 5 0.15
+0 0 0 0 0 1 9 5 0.15
-"Time = 0.000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
-1.950000 0.1500000000000
-2.250000 0.1500000000000
-2.550000 0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 0 5 0.15
+1 0 0 0 0 1 1 5 0.15
+1 0 0 0 0 1 2 5 0.15
+1 0 0 0 0 1 3 5 0.15
+1 0 0 0 0 1 4 5 0.15
+1 0 0 0 0 1 5 5 0.15
+1 0 0 0 0 1 6 5 0.15
+1 0 0 0 0 1 7 5 0.15
+1 0 0 0 0 1 8 5 0.15
+1 0 0 0 0 1 9 5 0.15
+
-"Time = 1.000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
-1.950000 0.1500000000000
-2.250000 0.1500000000000
-2.550000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/cart3d_x.zl b/CarpetAttic/Cart3dTest/test/axial/cart3d_x.zl
index 9ec3cd5db..07c4f329e 100644
--- a/CarpetAttic/Cart3dTest/test/axial/cart3d_x.zl
+++ b/CarpetAttic/Cart3dTest/test/axial/cart3d_x.zl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x z (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 1 0 0.15
+0 0 0 0 0 1 1 1 0.15
+0 0 0 0 0 1 1 2 0.15
+0 0 0 0 0 1 1 3 0.15
+0 0 0 0 0 1 1 4 0.15
+0 0 0 0 0 1 1 5 0.15
+0 0 0 0 0 1 1 6 0.15
+0 0 0 0 0 1 1 7 0.15
+0 0 0 0 0 1 1 8 0.15
+0 0 0 0 0 1 1 9 0.15
-"Time = 0.000000
--1.350000 0.1500000000000
--1.050000 0.1500000000000
--0.750000 0.1500000000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 1 0 0.15
+1 0 0 0 0 1 1 1 0.15
+1 0 0 0 0 1 1 2 0.15
+1 0 0 0 0 1 1 3 0.15
+1 0 0 0 0 1 1 4 0.15
+1 0 0 0 0 1 1 5 0.15
+1 0 0 0 0 1 1 6 0.15
+1 0 0 0 0 1 1 7 0.15
+1 0 0 0 0 1 1 8 0.15
+1 0 0 0 0 1 1 9 0.15
+
-"Time = 1.000000
--1.350000 0.1500000000000
--1.050000 0.1500000000000
--0.750000 0.1500000000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/cart3d_y.xl b/CarpetAttic/Cart3dTest/test/axial/cart3d_y.xl
index 042fd8cff..e07fa99ab 100644
--- a/CarpetAttic/Cart3dTest/test/axial/cart3d_y.xl
+++ b/CarpetAttic/Cart3dTest/test/axial/cart3d_y.xl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y x (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 0.15
+0 0 0 0 0 1 1 5 0.15
+0 0 0 0 0 2 1 5 0.15
+0 0 0 0 0 3 1 5 0.15
+0 0 0 0 0 4 1 5 0.15
+0 0 0 0 0 5 1 5 0.15
+0 0 0 0 0 6 1 5 0.15
+0 0 0 0 0 7 1 5 0.15
+0 0 0 0 0 8 1 5 0.15
+0 0 0 0 0 9 1 5 0.15
-"Time = 0.000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
-1.950000 0.1500000000000
-2.250000 0.1500000000000
-2.550000 0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 0.15
+1 0 0 0 0 1 1 5 0.15
+1 0 0 0 0 2 1 5 0.15
+1 0 0 0 0 3 1 5 0.15
+1 0 0 0 0 4 1 5 0.15
+1 0 0 0 0 5 1 5 0.15
+1 0 0 0 0 6 1 5 0.15
+1 0 0 0 0 7 1 5 0.15
+1 0 0 0 0 8 1 5 0.15
+1 0 0 0 0 9 1 5 0.15
+
-"Time = 1.000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
-1.950000 0.1500000000000
-2.250000 0.1500000000000
-2.550000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/cart3d_y.yl b/CarpetAttic/Cart3dTest/test/axial/cart3d_y.yl
index b2abd0b7f..2fda6291e 100644
--- a/CarpetAttic/Cart3dTest/test/axial/cart3d_y.yl
+++ b/CarpetAttic/Cart3dTest/test/axial/cart3d_y.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y y (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 0 5 -0.15
+0 0 0 0 0 1 1 5 0.15
+0 0 0 0 0 1 2 5 0.45
+0 0 0 0 0 1 3 5 0.75
+0 0 0 0 0 1 4 5 1.05
+0 0 0 0 0 1 5 5 1.35
+0 0 0 0 0 1 6 5 1.65
+0 0 0 0 0 1 7 5 1.95
+0 0 0 0 0 1 8 5 2.25
+0 0 0 0 0 1 9 5 2.55
-"Time = 0.000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
-2.550000 2.5500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 0 5 -0.15
+1 0 0 0 0 1 1 5 0.15
+1 0 0 0 0 1 2 5 0.45
+1 0 0 0 0 1 3 5 0.75
+1 0 0 0 0 1 4 5 1.05
+1 0 0 0 0 1 5 5 1.35
+1 0 0 0 0 1 6 5 1.65
+1 0 0 0 0 1 7 5 1.95
+1 0 0 0 0 1 8 5 2.25
+1 0 0 0 0 1 9 5 2.55
+
-"Time = 1.000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
-2.550000 2.5500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/cart3d_y.zl b/CarpetAttic/Cart3dTest/test/axial/cart3d_y.zl
index 9ec3cd5db..cb2230be9 100644
--- a/CarpetAttic/Cart3dTest/test/axial/cart3d_y.zl
+++ b/CarpetAttic/Cart3dTest/test/axial/cart3d_y.zl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y z (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 1 0 0.15
+0 0 0 0 0 1 1 1 0.15
+0 0 0 0 0 1 1 2 0.15
+0 0 0 0 0 1 1 3 0.15
+0 0 0 0 0 1 1 4 0.15
+0 0 0 0 0 1 1 5 0.15
+0 0 0 0 0 1 1 6 0.15
+0 0 0 0 0 1 1 7 0.15
+0 0 0 0 0 1 1 8 0.15
+0 0 0 0 0 1 1 9 0.15
-"Time = 0.000000
--1.350000 0.1500000000000
--1.050000 0.1500000000000
--0.750000 0.1500000000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 1 0 0.15
+1 0 0 0 0 1 1 1 0.15
+1 0 0 0 0 1 1 2 0.15
+1 0 0 0 0 1 1 3 0.15
+1 0 0 0 0 1 1 4 0.15
+1 0 0 0 0 1 1 5 0.15
+1 0 0 0 0 1 1 6 0.15
+1 0 0 0 0 1 1 7 0.15
+1 0 0 0 0 1 1 8 0.15
+1 0 0 0 0 1 1 9 0.15
+
-"Time = 1.000000
--1.350000 0.1500000000000
--1.050000 0.1500000000000
--0.750000 0.1500000000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/cart3d_z.xl b/CarpetAttic/Cart3dTest/test/axial/cart3d_z.xl
index 46363bcfd..9718c560e 100644
--- a/CarpetAttic/Cart3dTest/test/axial/cart3d_z.xl
+++ b/CarpetAttic/Cart3dTest/test/axial/cart3d_z.xl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z x (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 0.15
+0 0 0 0 0 1 1 5 0.15
+0 0 0 0 0 2 1 5 0.15
+0 0 0 0 0 3 1 5 0.15
+0 0 0 0 0 4 1 5 0.15
+0 0 0 0 0 5 1 5 0.15
+0 0 0 0 0 6 1 5 0.15
+0 0 0 0 0 7 1 5 0.15
+0 0 0 0 0 8 1 5 0.15
+0 0 0 0 0 9 1 5 0.15
-"Time = 0.000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 0.15
+1 0 0 0 0 1 1 5 0.15
+1 0 0 0 0 2 1 5 0.15
+1 0 0 0 0 3 1 5 0.15
+1 0 0 0 0 4 1 5 0.15
+1 0 0 0 0 5 1 5 0.15
+1 0 0 0 0 6 1 5 0.15
+1 0 0 0 0 7 1 5 0.15
+1 0 0 0 0 8 1 5 0.15
+1 0 0 0 0 9 1 5 0.15
+
-"Time = 1.000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/cart3d_z.yl b/CarpetAttic/Cart3dTest/test/axial/cart3d_z.yl
index 46363bcfd..3c2f5d12b 100644
--- a/CarpetAttic/Cart3dTest/test/axial/cart3d_z.yl
+++ b/CarpetAttic/Cart3dTest/test/axial/cart3d_z.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z y (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 0 5 0.15
+0 0 0 0 0 1 1 5 0.15
+0 0 0 0 0 1 2 5 0.15
+0 0 0 0 0 1 3 5 0.15
+0 0 0 0 0 1 4 5 0.15
+0 0 0 0 0 1 5 5 0.15
+0 0 0 0 0 1 6 5 0.15
+0 0 0 0 0 1 7 5 0.15
+0 0 0 0 0 1 8 5 0.15
+0 0 0 0 0 1 9 5 0.15
-"Time = 0.000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 0 5 0.15
+1 0 0 0 0 1 1 5 0.15
+1 0 0 0 0 1 2 5 0.15
+1 0 0 0 0 1 3 5 0.15
+1 0 0 0 0 1 4 5 0.15
+1 0 0 0 0 1 5 5 0.15
+1 0 0 0 0 1 6 5 0.15
+1 0 0 0 0 1 7 5 0.15
+1 0 0 0 0 1 8 5 0.15
+1 0 0 0 0 1 9 5 0.15
+
-"Time = 1.000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/cart3d_z.zl b/CarpetAttic/Cart3dTest/test/axial/cart3d_z.zl
index 33b36d0af..58a9153c2 100644
--- a/CarpetAttic/Cart3dTest/test/axial/cart3d_z.zl
+++ b/CarpetAttic/Cart3dTest/test/axial/cart3d_z.zl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z z (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 1 0 -1.35
+0 0 0 0 0 1 1 1 -1.05
+0 0 0 0 0 1 1 2 -0.75
+0 0 0 0 0 1 1 3 -0.45
+0 0 0 0 0 1 1 4 -0.15
+0 0 0 0 0 1 1 5 0.15
+0 0 0 0 0 1 1 6 0.45
+0 0 0 0 0 1 1 7 0.75
+0 0 0 0 0 1 1 8 1.05
+0 0 0 0 0 1 1 9 1.35
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 1 0 -1.35
+1 0 0 0 0 1 1 1 -1.05
+1 0 0 0 0 1 1 2 -0.75
+1 0 0 0 0 1 1 3 -0.45
+1 0 0 0 0 1 1 4 -0.15
+1 0 0 0 0 1 1 5 0.15
+1 0 0 0 0 1 1 6 0.45
+1 0 0 0 0 1 1 7 0.75
+1 0 0 0 0 1 1 8 1.05
+1 0 0 0 0 1 1 9 1.35
+
-"Time = 1.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/fxx.xl b/CarpetAttic/Cart3dTest/test/axial/fxx.xl
index d9505df4f..bcc48f9a8 100644
--- a/CarpetAttic/Cart3dTest/test/axial/fxx.xl
+++ b/CarpetAttic/Cart3dTest/test/axial/fxx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx x (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 41000105
+0 0 0 0 0 1 1 5 41010105
+0 0 0 0 0 2 1 5 41020105
+0 0 0 0 0 3 1 5 41030105
+0 0 0 0 0 4 1 5 41040105
+0 0 0 0 0 5 1 5 41050105
+0 0 0 0 0 6 1 5 41060105
+0 0 0 0 0 7 1 5 41070105
+0 0 0 0 0 8 1 5 41080105
+0 0 0 0 0 9 1 5 41090105
-"Time = 0.000000
--0.150000 41000104.0000000000000
-0.150000 41010104.0000000000000
-0.450000 41020104.0000000000000
-0.750000 41030104.0000000000000
-1.050000 41040104.0000000000000
-1.350000 41050104.0000000000000
-1.650000 41060104.0000000000000
-1.950000 41070104.0000000000000
-2.250000 41080104.0000000000000
-2.550000 41090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 45010105
+1 0 0 0 0 1 1 5 41010105
+1 0 0 0 0 2 1 5 41020105
+1 0 0 0 0 3 1 5 41030105
+1 0 0 0 0 4 1 5 41040105
+1 0 0 0 0 5 1 5 41050105
+1 0 0 0 0 6 1 5 41060105
+1 0 0 0 0 7 1 5 41070105
+1 0 0 0 0 8 1 5 41080105
+1 0 0 0 0 9 1 5 41090105
+
-"Time = 1.000000
--0.150000 45010104.0000000000000
-0.150000 41010104.0000000000000
-0.450000 41020104.0000000000000
-0.750000 41030104.0000000000000
-1.050000 41040104.0000000000000
-1.350000 41050104.0000000000000
-1.650000 41060104.0000000000000
-1.950000 41070104.0000000000000
-2.250000 41080104.0000000000000
-2.550000 41090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/fxx.yl b/CarpetAttic/Cart3dTest/test/axial/fxx.yl
index c14dc6c96..3d882b6f4 100644
--- a/CarpetAttic/Cart3dTest/test/axial/fxx.yl
+++ b/CarpetAttic/Cart3dTest/test/axial/fxx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx y (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 0 5 41010005
+0 0 0 0 0 1 1 5 41010105
+0 0 0 0 0 1 2 5 41010205
+0 0 0 0 0 1 3 5 41010305
+0 0 0 0 0 1 4 5 41010405
+0 0 0 0 0 1 5 5 41010505
+0 0 0 0 0 1 6 5 41010605
+0 0 0 0 0 1 7 5 41010705
+0 0 0 0 0 1 8 5 41010805
+0 0 0 0 0 1 9 5 41010905
-"Time = 0.000000
--0.150000 41010004.0000000000000
-0.150000 41010104.0000000000000
-0.450000 41010204.0000000000000
-0.750000 41010304.0000000000000
-1.050000 41010404.0000000000000
-1.350000 41010504.0000000000000
-1.650000 41010604.0000000000000
-1.950000 41010704.0000000000000
-2.250000 41010804.0000000000000
-2.550000 41010904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 0 5 45010105
+1 0 0 0 0 1 1 5 41010105
+1 0 0 0 0 1 2 5 41010205
+1 0 0 0 0 1 3 5 41010305
+1 0 0 0 0 1 4 5 41010405
+1 0 0 0 0 1 5 5 41010505
+1 0 0 0 0 1 6 5 41010605
+1 0 0 0 0 1 7 5 41010705
+1 0 0 0 0 1 8 5 41010805
+1 0 0 0 0 1 9 5 41010905
+
-"Time = 1.000000
--0.150000 45010104.0000000000000
-0.150000 41010104.0000000000000
-0.450000 41010204.0000000000000
-0.750000 41010304.0000000000000
-1.050000 41010404.0000000000000
-1.350000 41010504.0000000000000
-1.650000 41010604.0000000000000
-1.950000 41010704.0000000000000
-2.250000 41010804.0000000000000
-2.550000 41010904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/fxx.zl b/CarpetAttic/Cart3dTest/test/axial/fxx.zl
index 77fb66d88..949f19951 100644
--- a/CarpetAttic/Cart3dTest/test/axial/fxx.zl
+++ b/CarpetAttic/Cart3dTest/test/axial/fxx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx z (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 1 0 41010100
+0 0 0 0 0 1 1 1 41010101
+0 0 0 0 0 1 1 2 41010102
+0 0 0 0 0 1 1 3 41010103
+0 0 0 0 0 1 1 4 41010104
+0 0 0 0 0 1 1 5 41010105
+0 0 0 0 0 1 1 6 41010106
+0 0 0 0 0 1 1 7 41010107
+0 0 0 0 0 1 1 8 41010108
+0 0 0 0 0 1 1 9 41010109
-"Time = 0.000000
--1.350000 41010100.0000000000000
--1.050000 41010101.0000000000000
--0.750000 41010102.0000000000000
--0.450000 41010103.0000000000000
--0.150000 41010104.0000000000000
-0.150000 41010105.0000000000000
-0.450000 41010106.0000000000000
-0.750000 41010107.0000000000000
-1.050000 41010108.0000000000000
-1.350000 41010109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 1 0 41010100
+1 0 0 0 0 1 1 1 41010101
+1 0 0 0 0 1 1 2 41010102
+1 0 0 0 0 1 1 3 41010103
+1 0 0 0 0 1 1 4 41010104
+1 0 0 0 0 1 1 5 41010105
+1 0 0 0 0 1 1 6 41010106
+1 0 0 0 0 1 1 7 41010107
+1 0 0 0 0 1 1 8 41010108
+1 0 0 0 0 1 1 9 41010109
+
-"Time = 1.000000
--1.350000 41010100.0000000000000
--1.050000 41010101.0000000000000
--0.750000 41010102.0000000000000
--0.450000 41010103.0000000000000
--0.150000 41010104.0000000000000
-0.150000 41010105.0000000000000
-0.450000 41010106.0000000000000
-0.750000 41010107.0000000000000
-1.050000 41010108.0000000000000
-1.350000 41010109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/fxy.xl b/CarpetAttic/Cart3dTest/test/axial/fxy.xl
index 7c6fcc795..cd98efca1 100644
--- a/CarpetAttic/Cart3dTest/test/axial/fxy.xl
+++ b/CarpetAttic/Cart3dTest/test/axial/fxy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy x (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 42000105
+0 0 0 0 0 1 1 5 42010105
+0 0 0 0 0 2 1 5 42020105
+0 0 0 0 0 3 1 5 42030105
+0 0 0 0 0 4 1 5 42040105
+0 0 0 0 0 5 1 5 42050105
+0 0 0 0 0 6 1 5 42060105
+0 0 0 0 0 7 1 5 42070105
+0 0 0 0 0 8 1 5 42080105
+0 0 0 0 0 9 1 5 42090105
-"Time = 0.000000
--0.150000 42000104.0000000000000
-0.150000 42010104.0000000000000
-0.450000 42020104.0000000000000
-0.750000 42030104.0000000000000
-1.050000 42040104.0000000000000
-1.350000 42050104.0000000000000
-1.650000 42060104.0000000000000
-1.950000 42070104.0000000000000
-2.250000 42080104.0000000000000
-2.550000 42090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 -44010105
+1 0 0 0 0 1 1 5 42010105
+1 0 0 0 0 2 1 5 42020105
+1 0 0 0 0 3 1 5 42030105
+1 0 0 0 0 4 1 5 42040105
+1 0 0 0 0 5 1 5 42050105
+1 0 0 0 0 6 1 5 42060105
+1 0 0 0 0 7 1 5 42070105
+1 0 0 0 0 8 1 5 42080105
+1 0 0 0 0 9 1 5 42090105
+
-"Time = 1.000000
--0.150000 -44010104.0000000000000
-0.150000 42010104.0000000000000
-0.450000 42020104.0000000000000
-0.750000 42030104.0000000000000
-1.050000 42040104.0000000000000
-1.350000 42050104.0000000000000
-1.650000 42060104.0000000000000
-1.950000 42070104.0000000000000
-2.250000 42080104.0000000000000
-2.550000 42090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/fxy.yl b/CarpetAttic/Cart3dTest/test/axial/fxy.yl
index 52288905b..41782ef25 100644
--- a/CarpetAttic/Cart3dTest/test/axial/fxy.yl
+++ b/CarpetAttic/Cart3dTest/test/axial/fxy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy y (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 0 5 42010005
+0 0 0 0 0 1 1 5 42010105
+0 0 0 0 0 1 2 5 42010205
+0 0 0 0 0 1 3 5 42010305
+0 0 0 0 0 1 4 5 42010405
+0 0 0 0 0 1 5 5 42010505
+0 0 0 0 0 1 6 5 42010605
+0 0 0 0 0 1 7 5 42010705
+0 0 0 0 0 1 8 5 42010805
+0 0 0 0 0 1 9 5 42010905
-"Time = 0.000000
--0.150000 42010004.0000000000000
-0.150000 42010104.0000000000000
-0.450000 42010204.0000000000000
-0.750000 42010304.0000000000000
-1.050000 42010404.0000000000000
-1.350000 42010504.0000000000000
-1.650000 42010604.0000000000000
-1.950000 42010704.0000000000000
-2.250000 42010804.0000000000000
-2.550000 42010904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 0 5 -44010105
+1 0 0 0 0 1 1 5 42010105
+1 0 0 0 0 1 2 5 42010205
+1 0 0 0 0 1 3 5 42010305
+1 0 0 0 0 1 4 5 42010405
+1 0 0 0 0 1 5 5 42010505
+1 0 0 0 0 1 6 5 42010605
+1 0 0 0 0 1 7 5 42010705
+1 0 0 0 0 1 8 5 42010805
+1 0 0 0 0 1 9 5 42010905
+
-"Time = 1.000000
--0.150000 -44010104.0000000000000
-0.150000 42010104.0000000000000
-0.450000 42010204.0000000000000
-0.750000 42010304.0000000000000
-1.050000 42010404.0000000000000
-1.350000 42010504.0000000000000
-1.650000 42010604.0000000000000
-1.950000 42010704.0000000000000
-2.250000 42010804.0000000000000
-2.550000 42010904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/fxy.zl b/CarpetAttic/Cart3dTest/test/axial/fxy.zl
index 492108343..3d7460b4b 100644
--- a/CarpetAttic/Cart3dTest/test/axial/fxy.zl
+++ b/CarpetAttic/Cart3dTest/test/axial/fxy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy z (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 1 0 42010100
+0 0 0 0 0 1 1 1 42010101
+0 0 0 0 0 1 1 2 42010102
+0 0 0 0 0 1 1 3 42010103
+0 0 0 0 0 1 1 4 42010104
+0 0 0 0 0 1 1 5 42010105
+0 0 0 0 0 1 1 6 42010106
+0 0 0 0 0 1 1 7 42010107
+0 0 0 0 0 1 1 8 42010108
+0 0 0 0 0 1 1 9 42010109
-"Time = 0.000000
--1.350000 42010100.0000000000000
--1.050000 42010101.0000000000000
--0.750000 42010102.0000000000000
--0.450000 42010103.0000000000000
--0.150000 42010104.0000000000000
-0.150000 42010105.0000000000000
-0.450000 42010106.0000000000000
-0.750000 42010107.0000000000000
-1.050000 42010108.0000000000000
-1.350000 42010109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 1 0 42010100
+1 0 0 0 0 1 1 1 42010101
+1 0 0 0 0 1 1 2 42010102
+1 0 0 0 0 1 1 3 42010103
+1 0 0 0 0 1 1 4 42010104
+1 0 0 0 0 1 1 5 42010105
+1 0 0 0 0 1 1 6 42010106
+1 0 0 0 0 1 1 7 42010107
+1 0 0 0 0 1 1 8 42010108
+1 0 0 0 0 1 1 9 42010109
+
-"Time = 1.000000
--1.350000 42010100.0000000000000
--1.050000 42010101.0000000000000
--0.750000 42010102.0000000000000
--0.450000 42010103.0000000000000
--0.150000 42010104.0000000000000
-0.150000 42010105.0000000000000
-0.450000 42010106.0000000000000
-0.750000 42010107.0000000000000
-1.050000 42010108.0000000000000
-1.350000 42010109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/fxz.xl b/CarpetAttic/Cart3dTest/test/axial/fxz.xl
index 1657a947b..b0adf78ed 100644
--- a/CarpetAttic/Cart3dTest/test/axial/fxz.xl
+++ b/CarpetAttic/Cart3dTest/test/axial/fxz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz x (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 43000105
+0 0 0 0 0 1 1 5 43010105
+0 0 0 0 0 2 1 5 43020105
+0 0 0 0 0 3 1 5 43030105
+0 0 0 0 0 4 1 5 43040105
+0 0 0 0 0 5 1 5 43050105
+0 0 0 0 0 6 1 5 43060105
+0 0 0 0 0 7 1 5 43070105
+0 0 0 0 0 8 1 5 43080105
+0 0 0 0 0 9 1 5 43090105
-"Time = 0.000000
--0.150000 43000104.0000000000000
-0.150000 43010104.0000000000000
-0.450000 43020104.0000000000000
-0.750000 43030104.0000000000000
-1.050000 43040104.0000000000000
-1.350000 43050104.0000000000000
-1.650000 43060104.0000000000000
-1.950000 43070104.0000000000000
-2.250000 43080104.0000000000000
-2.550000 43090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 -46010105
+1 0 0 0 0 1 1 5 43010105
+1 0 0 0 0 2 1 5 43020105
+1 0 0 0 0 3 1 5 43030105
+1 0 0 0 0 4 1 5 43040105
+1 0 0 0 0 5 1 5 43050105
+1 0 0 0 0 6 1 5 43060105
+1 0 0 0 0 7 1 5 43070105
+1 0 0 0 0 8 1 5 43080105
+1 0 0 0 0 9 1 5 43090105
+
-"Time = 1.000000
--0.150000 -46010104.0000000000000
-0.150000 43010104.0000000000000
-0.450000 43020104.0000000000000
-0.750000 43030104.0000000000000
-1.050000 43040104.0000000000000
-1.350000 43050104.0000000000000
-1.650000 43060104.0000000000000
-1.950000 43070104.0000000000000
-2.250000 43080104.0000000000000
-2.550000 43090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/fxz.yl b/CarpetAttic/Cart3dTest/test/axial/fxz.yl
index 9a127203c..39dd69e69 100644
--- a/CarpetAttic/Cart3dTest/test/axial/fxz.yl
+++ b/CarpetAttic/Cart3dTest/test/axial/fxz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz y (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 0 5 43010005
+0 0 0 0 0 1 1 5 43010105
+0 0 0 0 0 1 2 5 43010205
+0 0 0 0 0 1 3 5 43010305
+0 0 0 0 0 1 4 5 43010405
+0 0 0 0 0 1 5 5 43010505
+0 0 0 0 0 1 6 5 43010605
+0 0 0 0 0 1 7 5 43010705
+0 0 0 0 0 1 8 5 43010805
+0 0 0 0 0 1 9 5 43010905
-"Time = 0.000000
--0.150000 43010004.0000000000000
-0.150000 43010104.0000000000000
-0.450000 43010204.0000000000000
-0.750000 43010304.0000000000000
-1.050000 43010404.0000000000000
-1.350000 43010504.0000000000000
-1.650000 43010604.0000000000000
-1.950000 43010704.0000000000000
-2.250000 43010804.0000000000000
-2.550000 43010904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 0 5 46010105
+1 0 0 0 0 1 1 5 43010105
+1 0 0 0 0 1 2 5 43010205
+1 0 0 0 0 1 3 5 43010305
+1 0 0 0 0 1 4 5 43010405
+1 0 0 0 0 1 5 5 43010505
+1 0 0 0 0 1 6 5 43010605
+1 0 0 0 0 1 7 5 43010705
+1 0 0 0 0 1 8 5 43010805
+1 0 0 0 0 1 9 5 43010905
+
-"Time = 1.000000
--0.150000 46010104.0000000000000
-0.150000 43010104.0000000000000
-0.450000 43010204.0000000000000
-0.750000 43010304.0000000000000
-1.050000 43010404.0000000000000
-1.350000 43010504.0000000000000
-1.650000 43010604.0000000000000
-1.950000 43010704.0000000000000
-2.250000 43010804.0000000000000
-2.550000 43010904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/fxz.zl b/CarpetAttic/Cart3dTest/test/axial/fxz.zl
index 891fa5368..737ebb3c7 100644
--- a/CarpetAttic/Cart3dTest/test/axial/fxz.zl
+++ b/CarpetAttic/Cart3dTest/test/axial/fxz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz z (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 1 0 43010100
+0 0 0 0 0 1 1 1 43010101
+0 0 0 0 0 1 1 2 43010102
+0 0 0 0 0 1 1 3 43010103
+0 0 0 0 0 1 1 4 43010104
+0 0 0 0 0 1 1 5 43010105
+0 0 0 0 0 1 1 6 43010106
+0 0 0 0 0 1 1 7 43010107
+0 0 0 0 0 1 1 8 43010108
+0 0 0 0 0 1 1 9 43010109
-"Time = 0.000000
--1.350000 43010100.0000000000000
--1.050000 43010101.0000000000000
--0.750000 43010102.0000000000000
--0.450000 43010103.0000000000000
--0.150000 43010104.0000000000000
-0.150000 43010105.0000000000000
-0.450000 43010106.0000000000000
-0.750000 43010107.0000000000000
-1.050000 43010108.0000000000000
-1.350000 43010109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 1 0 43010100
+1 0 0 0 0 1 1 1 43010101
+1 0 0 0 0 1 1 2 43010102
+1 0 0 0 0 1 1 3 43010103
+1 0 0 0 0 1 1 4 43010104
+1 0 0 0 0 1 1 5 43010105
+1 0 0 0 0 1 1 6 43010106
+1 0 0 0 0 1 1 7 43010107
+1 0 0 0 0 1 1 8 43010108
+1 0 0 0 0 1 1 9 43010109
+
-"Time = 1.000000
--1.350000 43010100.0000000000000
--1.050000 43010101.0000000000000
--0.750000 43010102.0000000000000
--0.450000 43010103.0000000000000
--0.150000 43010104.0000000000000
-0.150000 43010105.0000000000000
-0.450000 43010106.0000000000000
-0.750000 43010107.0000000000000
-1.050000 43010108.0000000000000
-1.350000 43010109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/fyx.xl b/CarpetAttic/Cart3dTest/test/axial/fyx.xl
index e9efe49ce..a0119eed8 100644
--- a/CarpetAttic/Cart3dTest/test/axial/fyx.xl
+++ b/CarpetAttic/Cart3dTest/test/axial/fyx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx x (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 44000105
+0 0 0 0 0 1 1 5 44010105
+0 0 0 0 0 2 1 5 44020105
+0 0 0 0 0 3 1 5 44030105
+0 0 0 0 0 4 1 5 44040105
+0 0 0 0 0 5 1 5 44050105
+0 0 0 0 0 6 1 5 44060105
+0 0 0 0 0 7 1 5 44070105
+0 0 0 0 0 8 1 5 44080105
+0 0 0 0 0 9 1 5 44090105
-"Time = 0.000000
--0.150000 44000104.0000000000000
-0.150000 44010104.0000000000000
-0.450000 44020104.0000000000000
-0.750000 44030104.0000000000000
-1.050000 44040104.0000000000000
-1.350000 44050104.0000000000000
-1.650000 44060104.0000000000000
-1.950000 44070104.0000000000000
-2.250000 44080104.0000000000000
-2.550000 44090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 -42010105
+1 0 0 0 0 1 1 5 44010105
+1 0 0 0 0 2 1 5 44020105
+1 0 0 0 0 3 1 5 44030105
+1 0 0 0 0 4 1 5 44040105
+1 0 0 0 0 5 1 5 44050105
+1 0 0 0 0 6 1 5 44060105
+1 0 0 0 0 7 1 5 44070105
+1 0 0 0 0 8 1 5 44080105
+1 0 0 0 0 9 1 5 44090105
+
-"Time = 1.000000
--0.150000 -42010104.0000000000000
-0.150000 44010104.0000000000000
-0.450000 44020104.0000000000000
-0.750000 44030104.0000000000000
-1.050000 44040104.0000000000000
-1.350000 44050104.0000000000000
-1.650000 44060104.0000000000000
-1.950000 44070104.0000000000000
-2.250000 44080104.0000000000000
-2.550000 44090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/fyx.yl b/CarpetAttic/Cart3dTest/test/axial/fyx.yl
index a570aeed2..6e88a9f25 100644
--- a/CarpetAttic/Cart3dTest/test/axial/fyx.yl
+++ b/CarpetAttic/Cart3dTest/test/axial/fyx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx y (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 0 5 44010005
+0 0 0 0 0 1 1 5 44010105
+0 0 0 0 0 1 2 5 44010205
+0 0 0 0 0 1 3 5 44010305
+0 0 0 0 0 1 4 5 44010405
+0 0 0 0 0 1 5 5 44010505
+0 0 0 0 0 1 6 5 44010605
+0 0 0 0 0 1 7 5 44010705
+0 0 0 0 0 1 8 5 44010805
+0 0 0 0 0 1 9 5 44010905
-"Time = 0.000000
--0.150000 44010004.0000000000000
-0.150000 44010104.0000000000000
-0.450000 44010204.0000000000000
-0.750000 44010304.0000000000000
-1.050000 44010404.0000000000000
-1.350000 44010504.0000000000000
-1.650000 44010604.0000000000000
-1.950000 44010704.0000000000000
-2.250000 44010804.0000000000000
-2.550000 44010904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 0 5 -42010105
+1 0 0 0 0 1 1 5 44010105
+1 0 0 0 0 1 2 5 44010205
+1 0 0 0 0 1 3 5 44010305
+1 0 0 0 0 1 4 5 44010405
+1 0 0 0 0 1 5 5 44010505
+1 0 0 0 0 1 6 5 44010605
+1 0 0 0 0 1 7 5 44010705
+1 0 0 0 0 1 8 5 44010805
+1 0 0 0 0 1 9 5 44010905
+
-"Time = 1.000000
--0.150000 -42010104.0000000000000
-0.150000 44010104.0000000000000
-0.450000 44010204.0000000000000
-0.750000 44010304.0000000000000
-1.050000 44010404.0000000000000
-1.350000 44010504.0000000000000
-1.650000 44010604.0000000000000
-1.950000 44010704.0000000000000
-2.250000 44010804.0000000000000
-2.550000 44010904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/fyx.zl b/CarpetAttic/Cart3dTest/test/axial/fyx.zl
index 46bf5e252..aac384030 100644
--- a/CarpetAttic/Cart3dTest/test/axial/fyx.zl
+++ b/CarpetAttic/Cart3dTest/test/axial/fyx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx z (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 1 0 44010100
+0 0 0 0 0 1 1 1 44010101
+0 0 0 0 0 1 1 2 44010102
+0 0 0 0 0 1 1 3 44010103
+0 0 0 0 0 1 1 4 44010104
+0 0 0 0 0 1 1 5 44010105
+0 0 0 0 0 1 1 6 44010106
+0 0 0 0 0 1 1 7 44010107
+0 0 0 0 0 1 1 8 44010108
+0 0 0 0 0 1 1 9 44010109
-"Time = 0.000000
--1.350000 44010100.0000000000000
--1.050000 44010101.0000000000000
--0.750000 44010102.0000000000000
--0.450000 44010103.0000000000000
--0.150000 44010104.0000000000000
-0.150000 44010105.0000000000000
-0.450000 44010106.0000000000000
-0.750000 44010107.0000000000000
-1.050000 44010108.0000000000000
-1.350000 44010109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 1 0 44010100
+1 0 0 0 0 1 1 1 44010101
+1 0 0 0 0 1 1 2 44010102
+1 0 0 0 0 1 1 3 44010103
+1 0 0 0 0 1 1 4 44010104
+1 0 0 0 0 1 1 5 44010105
+1 0 0 0 0 1 1 6 44010106
+1 0 0 0 0 1 1 7 44010107
+1 0 0 0 0 1 1 8 44010108
+1 0 0 0 0 1 1 9 44010109
+
-"Time = 1.000000
--1.350000 44010100.0000000000000
--1.050000 44010101.0000000000000
--0.750000 44010102.0000000000000
--0.450000 44010103.0000000000000
--0.150000 44010104.0000000000000
-0.150000 44010105.0000000000000
-0.450000 44010106.0000000000000
-0.750000 44010107.0000000000000
-1.050000 44010108.0000000000000
-1.350000 44010109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/fyy.xl b/CarpetAttic/Cart3dTest/test/axial/fyy.xl
index 168d12b9c..dc7e89b52 100644
--- a/CarpetAttic/Cart3dTest/test/axial/fyy.xl
+++ b/CarpetAttic/Cart3dTest/test/axial/fyy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy x (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 45000105
+0 0 0 0 0 1 1 5 45010105
+0 0 0 0 0 2 1 5 45020105
+0 0 0 0 0 3 1 5 45030105
+0 0 0 0 0 4 1 5 45040105
+0 0 0 0 0 5 1 5 45050105
+0 0 0 0 0 6 1 5 45060105
+0 0 0 0 0 7 1 5 45070105
+0 0 0 0 0 8 1 5 45080105
+0 0 0 0 0 9 1 5 45090105
-"Time = 0.000000
--0.150000 45000104.0000000000000
-0.150000 45010104.0000000000000
-0.450000 45020104.0000000000000
-0.750000 45030104.0000000000000
-1.050000 45040104.0000000000000
-1.350000 45050104.0000000000000
-1.650000 45060104.0000000000000
-1.950000 45070104.0000000000000
-2.250000 45080104.0000000000000
-2.550000 45090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 41010105
+1 0 0 0 0 1 1 5 45010105
+1 0 0 0 0 2 1 5 45020105
+1 0 0 0 0 3 1 5 45030105
+1 0 0 0 0 4 1 5 45040105
+1 0 0 0 0 5 1 5 45050105
+1 0 0 0 0 6 1 5 45060105
+1 0 0 0 0 7 1 5 45070105
+1 0 0 0 0 8 1 5 45080105
+1 0 0 0 0 9 1 5 45090105
+
-"Time = 1.000000
--0.150000 41010104.0000000000000
-0.150000 45010104.0000000000000
-0.450000 45020104.0000000000000
-0.750000 45030104.0000000000000
-1.050000 45040104.0000000000000
-1.350000 45050104.0000000000000
-1.650000 45060104.0000000000000
-1.950000 45070104.0000000000000
-2.250000 45080104.0000000000000
-2.550000 45090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/fyy.yl b/CarpetAttic/Cart3dTest/test/axial/fyy.yl
index 4ee9fdc9f..37f4b855e 100644
--- a/CarpetAttic/Cart3dTest/test/axial/fyy.yl
+++ b/CarpetAttic/Cart3dTest/test/axial/fyy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy y (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 0 5 45010005
+0 0 0 0 0 1 1 5 45010105
+0 0 0 0 0 1 2 5 45010205
+0 0 0 0 0 1 3 5 45010305
+0 0 0 0 0 1 4 5 45010405
+0 0 0 0 0 1 5 5 45010505
+0 0 0 0 0 1 6 5 45010605
+0 0 0 0 0 1 7 5 45010705
+0 0 0 0 0 1 8 5 45010805
+0 0 0 0 0 1 9 5 45010905
-"Time = 0.000000
--0.150000 45010004.0000000000000
-0.150000 45010104.0000000000000
-0.450000 45010204.0000000000000
-0.750000 45010304.0000000000000
-1.050000 45010404.0000000000000
-1.350000 45010504.0000000000000
-1.650000 45010604.0000000000000
-1.950000 45010704.0000000000000
-2.250000 45010804.0000000000000
-2.550000 45010904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 0 5 41010105
+1 0 0 0 0 1 1 5 45010105
+1 0 0 0 0 1 2 5 45010205
+1 0 0 0 0 1 3 5 45010305
+1 0 0 0 0 1 4 5 45010405
+1 0 0 0 0 1 5 5 45010505
+1 0 0 0 0 1 6 5 45010605
+1 0 0 0 0 1 7 5 45010705
+1 0 0 0 0 1 8 5 45010805
+1 0 0 0 0 1 9 5 45010905
+
-"Time = 1.000000
--0.150000 41010104.0000000000000
-0.150000 45010104.0000000000000
-0.450000 45010204.0000000000000
-0.750000 45010304.0000000000000
-1.050000 45010404.0000000000000
-1.350000 45010504.0000000000000
-1.650000 45010604.0000000000000
-1.950000 45010704.0000000000000
-2.250000 45010804.0000000000000
-2.550000 45010904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/fyy.zl b/CarpetAttic/Cart3dTest/test/axial/fyy.zl
index c80bc207d..e0f198dc3 100644
--- a/CarpetAttic/Cart3dTest/test/axial/fyy.zl
+++ b/CarpetAttic/Cart3dTest/test/axial/fyy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy z (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 1 0 45010100
+0 0 0 0 0 1 1 1 45010101
+0 0 0 0 0 1 1 2 45010102
+0 0 0 0 0 1 1 3 45010103
+0 0 0 0 0 1 1 4 45010104
+0 0 0 0 0 1 1 5 45010105
+0 0 0 0 0 1 1 6 45010106
+0 0 0 0 0 1 1 7 45010107
+0 0 0 0 0 1 1 8 45010108
+0 0 0 0 0 1 1 9 45010109
-"Time = 0.000000
--1.350000 45010100.0000000000000
--1.050000 45010101.0000000000000
--0.750000 45010102.0000000000000
--0.450000 45010103.0000000000000
--0.150000 45010104.0000000000000
-0.150000 45010105.0000000000000
-0.450000 45010106.0000000000000
-0.750000 45010107.0000000000000
-1.050000 45010108.0000000000000
-1.350000 45010109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 1 0 45010100
+1 0 0 0 0 1 1 1 45010101
+1 0 0 0 0 1 1 2 45010102
+1 0 0 0 0 1 1 3 45010103
+1 0 0 0 0 1 1 4 45010104
+1 0 0 0 0 1 1 5 45010105
+1 0 0 0 0 1 1 6 45010106
+1 0 0 0 0 1 1 7 45010107
+1 0 0 0 0 1 1 8 45010108
+1 0 0 0 0 1 1 9 45010109
+
-"Time = 1.000000
--1.350000 45010100.0000000000000
--1.050000 45010101.0000000000000
--0.750000 45010102.0000000000000
--0.450000 45010103.0000000000000
--0.150000 45010104.0000000000000
-0.150000 45010105.0000000000000
-0.450000 45010106.0000000000000
-0.750000 45010107.0000000000000
-1.050000 45010108.0000000000000
-1.350000 45010109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/fyz.xl b/CarpetAttic/Cart3dTest/test/axial/fyz.xl
index c9977e9d0..a1bad1e9d 100644
--- a/CarpetAttic/Cart3dTest/test/axial/fyz.xl
+++ b/CarpetAttic/Cart3dTest/test/axial/fyz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz x (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 46000105
+0 0 0 0 0 1 1 5 46010105
+0 0 0 0 0 2 1 5 46020105
+0 0 0 0 0 3 1 5 46030105
+0 0 0 0 0 4 1 5 46040105
+0 0 0 0 0 5 1 5 46050105
+0 0 0 0 0 6 1 5 46060105
+0 0 0 0 0 7 1 5 46070105
+0 0 0 0 0 8 1 5 46080105
+0 0 0 0 0 9 1 5 46090105
-"Time = 0.000000
--0.150000 46000104.0000000000000
-0.150000 46010104.0000000000000
-0.450000 46020104.0000000000000
-0.750000 46030104.0000000000000
-1.050000 46040104.0000000000000
-1.350000 46050104.0000000000000
-1.650000 46060104.0000000000000
-1.950000 46070104.0000000000000
-2.250000 46080104.0000000000000
-2.550000 46090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 43010105
+1 0 0 0 0 1 1 5 46010105
+1 0 0 0 0 2 1 5 46020105
+1 0 0 0 0 3 1 5 46030105
+1 0 0 0 0 4 1 5 46040105
+1 0 0 0 0 5 1 5 46050105
+1 0 0 0 0 6 1 5 46060105
+1 0 0 0 0 7 1 5 46070105
+1 0 0 0 0 8 1 5 46080105
+1 0 0 0 0 9 1 5 46090105
+
-"Time = 1.000000
--0.150000 43010104.0000000000000
-0.150000 46010104.0000000000000
-0.450000 46020104.0000000000000
-0.750000 46030104.0000000000000
-1.050000 46040104.0000000000000
-1.350000 46050104.0000000000000
-1.650000 46060104.0000000000000
-1.950000 46070104.0000000000000
-2.250000 46080104.0000000000000
-2.550000 46090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/fyz.yl b/CarpetAttic/Cart3dTest/test/axial/fyz.yl
index 0678a6000..9fbf16adf 100644
--- a/CarpetAttic/Cart3dTest/test/axial/fyz.yl
+++ b/CarpetAttic/Cart3dTest/test/axial/fyz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz y (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 0 5 46010005
+0 0 0 0 0 1 1 5 46010105
+0 0 0 0 0 1 2 5 46010205
+0 0 0 0 0 1 3 5 46010305
+0 0 0 0 0 1 4 5 46010405
+0 0 0 0 0 1 5 5 46010505
+0 0 0 0 0 1 6 5 46010605
+0 0 0 0 0 1 7 5 46010705
+0 0 0 0 0 1 8 5 46010805
+0 0 0 0 0 1 9 5 46010905
-"Time = 0.000000
--0.150000 46010004.0000000000000
-0.150000 46010104.0000000000000
-0.450000 46010204.0000000000000
-0.750000 46010304.0000000000000
-1.050000 46010404.0000000000000
-1.350000 46010504.0000000000000
-1.650000 46010604.0000000000000
-1.950000 46010704.0000000000000
-2.250000 46010804.0000000000000
-2.550000 46010904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 0 5 -43010105
+1 0 0 0 0 1 1 5 46010105
+1 0 0 0 0 1 2 5 46010205
+1 0 0 0 0 1 3 5 46010305
+1 0 0 0 0 1 4 5 46010405
+1 0 0 0 0 1 5 5 46010505
+1 0 0 0 0 1 6 5 46010605
+1 0 0 0 0 1 7 5 46010705
+1 0 0 0 0 1 8 5 46010805
+1 0 0 0 0 1 9 5 46010905
+
-"Time = 1.000000
--0.150000 -43010104.0000000000000
-0.150000 46010104.0000000000000
-0.450000 46010204.0000000000000
-0.750000 46010304.0000000000000
-1.050000 46010404.0000000000000
-1.350000 46010504.0000000000000
-1.650000 46010604.0000000000000
-1.950000 46010704.0000000000000
-2.250000 46010804.0000000000000
-2.550000 46010904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/fyz.zl b/CarpetAttic/Cart3dTest/test/axial/fyz.zl
index da6515647..8278a5c90 100644
--- a/CarpetAttic/Cart3dTest/test/axial/fyz.zl
+++ b/CarpetAttic/Cart3dTest/test/axial/fyz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz z (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 1 0 46010100
+0 0 0 0 0 1 1 1 46010101
+0 0 0 0 0 1 1 2 46010102
+0 0 0 0 0 1 1 3 46010103
+0 0 0 0 0 1 1 4 46010104
+0 0 0 0 0 1 1 5 46010105
+0 0 0 0 0 1 1 6 46010106
+0 0 0 0 0 1 1 7 46010107
+0 0 0 0 0 1 1 8 46010108
+0 0 0 0 0 1 1 9 46010109
-"Time = 0.000000
--1.350000 46010100.0000000000000
--1.050000 46010101.0000000000000
--0.750000 46010102.0000000000000
--0.450000 46010103.0000000000000
--0.150000 46010104.0000000000000
-0.150000 46010105.0000000000000
-0.450000 46010106.0000000000000
-0.750000 46010107.0000000000000
-1.050000 46010108.0000000000000
-1.350000 46010109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 1 0 46010100
+1 0 0 0 0 1 1 1 46010101
+1 0 0 0 0 1 1 2 46010102
+1 0 0 0 0 1 1 3 46010103
+1 0 0 0 0 1 1 4 46010104
+1 0 0 0 0 1 1 5 46010105
+1 0 0 0 0 1 1 6 46010106
+1 0 0 0 0 1 1 7 46010107
+1 0 0 0 0 1 1 8 46010108
+1 0 0 0 0 1 1 9 46010109
+
-"Time = 1.000000
--1.350000 46010100.0000000000000
--1.050000 46010101.0000000000000
--0.750000 46010102.0000000000000
--0.450000 46010103.0000000000000
--0.150000 46010104.0000000000000
-0.150000 46010105.0000000000000
-0.450000 46010106.0000000000000
-0.750000 46010107.0000000000000
-1.050000 46010108.0000000000000
-1.350000 46010109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/fzx.xl b/CarpetAttic/Cart3dTest/test/axial/fzx.xl
index 75f827e9a..83c842bbf 100644
--- a/CarpetAttic/Cart3dTest/test/axial/fzx.xl
+++ b/CarpetAttic/Cart3dTest/test/axial/fzx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx x (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 47000105
+0 0 0 0 0 1 1 5 47010105
+0 0 0 0 0 2 1 5 47020105
+0 0 0 0 0 3 1 5 47030105
+0 0 0 0 0 4 1 5 47040105
+0 0 0 0 0 5 1 5 47050105
+0 0 0 0 0 6 1 5 47060105
+0 0 0 0 0 7 1 5 47070105
+0 0 0 0 0 8 1 5 47080105
+0 0 0 0 0 9 1 5 47090105
-"Time = 0.000000
--0.150000 47000104.0000000000000
-0.150000 47010104.0000000000000
-0.450000 47020104.0000000000000
-0.750000 47030104.0000000000000
-1.050000 47040104.0000000000000
-1.350000 47050104.0000000000000
-1.650000 47060104.0000000000000
-1.950000 47070104.0000000000000
-2.250000 47080104.0000000000000
-2.550000 47090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 -48010105
+1 0 0 0 0 1 1 5 47010105
+1 0 0 0 0 2 1 5 47020105
+1 0 0 0 0 3 1 5 47030105
+1 0 0 0 0 4 1 5 47040105
+1 0 0 0 0 5 1 5 47050105
+1 0 0 0 0 6 1 5 47060105
+1 0 0 0 0 7 1 5 47070105
+1 0 0 0 0 8 1 5 47080105
+1 0 0 0 0 9 1 5 47090105
+
-"Time = 1.000000
--0.150000 -48010104.0000000000000
-0.150000 47010104.0000000000000
-0.450000 47020104.0000000000000
-0.750000 47030104.0000000000000
-1.050000 47040104.0000000000000
-1.350000 47050104.0000000000000
-1.650000 47060104.0000000000000
-1.950000 47070104.0000000000000
-2.250000 47080104.0000000000000
-2.550000 47090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/fzx.yl b/CarpetAttic/Cart3dTest/test/axial/fzx.yl
index fe4128eb7..b20bbcd21 100644
--- a/CarpetAttic/Cart3dTest/test/axial/fzx.yl
+++ b/CarpetAttic/Cart3dTest/test/axial/fzx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx y (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 0 5 47010005
+0 0 0 0 0 1 1 5 47010105
+0 0 0 0 0 1 2 5 47010205
+0 0 0 0 0 1 3 5 47010305
+0 0 0 0 0 1 4 5 47010405
+0 0 0 0 0 1 5 5 47010505
+0 0 0 0 0 1 6 5 47010605
+0 0 0 0 0 1 7 5 47010705
+0 0 0 0 0 1 8 5 47010805
+0 0 0 0 0 1 9 5 47010905
-"Time = 0.000000
--0.150000 47010004.0000000000000
-0.150000 47010104.0000000000000
-0.450000 47010204.0000000000000
-0.750000 47010304.0000000000000
-1.050000 47010404.0000000000000
-1.350000 47010504.0000000000000
-1.650000 47010604.0000000000000
-1.950000 47010704.0000000000000
-2.250000 47010804.0000000000000
-2.550000 47010904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 0 5 48010105
+1 0 0 0 0 1 1 5 47010105
+1 0 0 0 0 1 2 5 47010205
+1 0 0 0 0 1 3 5 47010305
+1 0 0 0 0 1 4 5 47010405
+1 0 0 0 0 1 5 5 47010505
+1 0 0 0 0 1 6 5 47010605
+1 0 0 0 0 1 7 5 47010705
+1 0 0 0 0 1 8 5 47010805
+1 0 0 0 0 1 9 5 47010905
+
-"Time = 1.000000
--0.150000 48010104.0000000000000
-0.150000 47010104.0000000000000
-0.450000 47010204.0000000000000
-0.750000 47010304.0000000000000
-1.050000 47010404.0000000000000
-1.350000 47010504.0000000000000
-1.650000 47010604.0000000000000
-1.950000 47010704.0000000000000
-2.250000 47010804.0000000000000
-2.550000 47010904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/fzx.zl b/CarpetAttic/Cart3dTest/test/axial/fzx.zl
index 526a773dc..754e781d3 100644
--- a/CarpetAttic/Cart3dTest/test/axial/fzx.zl
+++ b/CarpetAttic/Cart3dTest/test/axial/fzx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx z (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 1 0 47010100
+0 0 0 0 0 1 1 1 47010101
+0 0 0 0 0 1 1 2 47010102
+0 0 0 0 0 1 1 3 47010103
+0 0 0 0 0 1 1 4 47010104
+0 0 0 0 0 1 1 5 47010105
+0 0 0 0 0 1 1 6 47010106
+0 0 0 0 0 1 1 7 47010107
+0 0 0 0 0 1 1 8 47010108
+0 0 0 0 0 1 1 9 47010109
-"Time = 0.000000
--1.350000 47010100.0000000000000
--1.050000 47010101.0000000000000
--0.750000 47010102.0000000000000
--0.450000 47010103.0000000000000
--0.150000 47010104.0000000000000
-0.150000 47010105.0000000000000
-0.450000 47010106.0000000000000
-0.750000 47010107.0000000000000
-1.050000 47010108.0000000000000
-1.350000 47010109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 1 0 47010100
+1 0 0 0 0 1 1 1 47010101
+1 0 0 0 0 1 1 2 47010102
+1 0 0 0 0 1 1 3 47010103
+1 0 0 0 0 1 1 4 47010104
+1 0 0 0 0 1 1 5 47010105
+1 0 0 0 0 1 1 6 47010106
+1 0 0 0 0 1 1 7 47010107
+1 0 0 0 0 1 1 8 47010108
+1 0 0 0 0 1 1 9 47010109
+
-"Time = 1.000000
--1.350000 47010100.0000000000000
--1.050000 47010101.0000000000000
--0.750000 47010102.0000000000000
--0.450000 47010103.0000000000000
--0.150000 47010104.0000000000000
-0.150000 47010105.0000000000000
-0.450000 47010106.0000000000000
-0.750000 47010107.0000000000000
-1.050000 47010108.0000000000000
-1.350000 47010109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/fzy.xl b/CarpetAttic/Cart3dTest/test/axial/fzy.xl
index 286474a50..d35a45ec5 100644
--- a/CarpetAttic/Cart3dTest/test/axial/fzy.xl
+++ b/CarpetAttic/Cart3dTest/test/axial/fzy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy x (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 48000105
+0 0 0 0 0 1 1 5 48010105
+0 0 0 0 0 2 1 5 48020105
+0 0 0 0 0 3 1 5 48030105
+0 0 0 0 0 4 1 5 48040105
+0 0 0 0 0 5 1 5 48050105
+0 0 0 0 0 6 1 5 48060105
+0 0 0 0 0 7 1 5 48070105
+0 0 0 0 0 8 1 5 48080105
+0 0 0 0 0 9 1 5 48090105
-"Time = 0.000000
--0.150000 48000104.0000000000000
-0.150000 48010104.0000000000000
-0.450000 48020104.0000000000000
-0.750000 48030104.0000000000000
-1.050000 48040104.0000000000000
-1.350000 48050104.0000000000000
-1.650000 48060104.0000000000000
-1.950000 48070104.0000000000000
-2.250000 48080104.0000000000000
-2.550000 48090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 47010105
+1 0 0 0 0 1 1 5 48010105
+1 0 0 0 0 2 1 5 48020105
+1 0 0 0 0 3 1 5 48030105
+1 0 0 0 0 4 1 5 48040105
+1 0 0 0 0 5 1 5 48050105
+1 0 0 0 0 6 1 5 48060105
+1 0 0 0 0 7 1 5 48070105
+1 0 0 0 0 8 1 5 48080105
+1 0 0 0 0 9 1 5 48090105
+
-"Time = 1.000000
--0.150000 47010104.0000000000000
-0.150000 48010104.0000000000000
-0.450000 48020104.0000000000000
-0.750000 48030104.0000000000000
-1.050000 48040104.0000000000000
-1.350000 48050104.0000000000000
-1.650000 48060104.0000000000000
-1.950000 48070104.0000000000000
-2.250000 48080104.0000000000000
-2.550000 48090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/fzy.yl b/CarpetAttic/Cart3dTest/test/axial/fzy.yl
index c4f533b1c..882a7e3da 100644
--- a/CarpetAttic/Cart3dTest/test/axial/fzy.yl
+++ b/CarpetAttic/Cart3dTest/test/axial/fzy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy y (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 0 5 48010005
+0 0 0 0 0 1 1 5 48010105
+0 0 0 0 0 1 2 5 48010205
+0 0 0 0 0 1 3 5 48010305
+0 0 0 0 0 1 4 5 48010405
+0 0 0 0 0 1 5 5 48010505
+0 0 0 0 0 1 6 5 48010605
+0 0 0 0 0 1 7 5 48010705
+0 0 0 0 0 1 8 5 48010805
+0 0 0 0 0 1 9 5 48010905
-"Time = 0.000000
--0.150000 48010004.0000000000000
-0.150000 48010104.0000000000000
-0.450000 48010204.0000000000000
-0.750000 48010304.0000000000000
-1.050000 48010404.0000000000000
-1.350000 48010504.0000000000000
-1.650000 48010604.0000000000000
-1.950000 48010704.0000000000000
-2.250000 48010804.0000000000000
-2.550000 48010904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 0 5 -47010105
+1 0 0 0 0 1 1 5 48010105
+1 0 0 0 0 1 2 5 48010205
+1 0 0 0 0 1 3 5 48010305
+1 0 0 0 0 1 4 5 48010405
+1 0 0 0 0 1 5 5 48010505
+1 0 0 0 0 1 6 5 48010605
+1 0 0 0 0 1 7 5 48010705
+1 0 0 0 0 1 8 5 48010805
+1 0 0 0 0 1 9 5 48010905
+
-"Time = 1.000000
--0.150000 -47010104.0000000000000
-0.150000 48010104.0000000000000
-0.450000 48010204.0000000000000
-0.750000 48010304.0000000000000
-1.050000 48010404.0000000000000
-1.350000 48010504.0000000000000
-1.650000 48010604.0000000000000
-1.950000 48010704.0000000000000
-2.250000 48010804.0000000000000
-2.550000 48010904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/fzy.zl b/CarpetAttic/Cart3dTest/test/axial/fzy.zl
index 6acd59e6d..797b88129 100644
--- a/CarpetAttic/Cart3dTest/test/axial/fzy.zl
+++ b/CarpetAttic/Cart3dTest/test/axial/fzy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy z (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 1 0 48010100
+0 0 0 0 0 1 1 1 48010101
+0 0 0 0 0 1 1 2 48010102
+0 0 0 0 0 1 1 3 48010103
+0 0 0 0 0 1 1 4 48010104
+0 0 0 0 0 1 1 5 48010105
+0 0 0 0 0 1 1 6 48010106
+0 0 0 0 0 1 1 7 48010107
+0 0 0 0 0 1 1 8 48010108
+0 0 0 0 0 1 1 9 48010109
-"Time = 0.000000
--1.350000 48010100.0000000000000
--1.050000 48010101.0000000000000
--0.750000 48010102.0000000000000
--0.450000 48010103.0000000000000
--0.150000 48010104.0000000000000
-0.150000 48010105.0000000000000
-0.450000 48010106.0000000000000
-0.750000 48010107.0000000000000
-1.050000 48010108.0000000000000
-1.350000 48010109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 1 0 48010100
+1 0 0 0 0 1 1 1 48010101
+1 0 0 0 0 1 1 2 48010102
+1 0 0 0 0 1 1 3 48010103
+1 0 0 0 0 1 1 4 48010104
+1 0 0 0 0 1 1 5 48010105
+1 0 0 0 0 1 1 6 48010106
+1 0 0 0 0 1 1 7 48010107
+1 0 0 0 0 1 1 8 48010108
+1 0 0 0 0 1 1 9 48010109
+
-"Time = 1.000000
--1.350000 48010100.0000000000000
--1.050000 48010101.0000000000000
--0.750000 48010102.0000000000000
--0.450000 48010103.0000000000000
--0.150000 48010104.0000000000000
-0.150000 48010105.0000000000000
-0.450000 48010106.0000000000000
-0.750000 48010107.0000000000000
-1.050000 48010108.0000000000000
-1.350000 48010109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/fzz.xl b/CarpetAttic/Cart3dTest/test/axial/fzz.xl
index 7be5c8587..2bee1adf5 100644
--- a/CarpetAttic/Cart3dTest/test/axial/fzz.xl
+++ b/CarpetAttic/Cart3dTest/test/axial/fzz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz x (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 49000105
+0 0 0 0 0 1 1 5 49010105
+0 0 0 0 0 2 1 5 49020105
+0 0 0 0 0 3 1 5 49030105
+0 0 0 0 0 4 1 5 49040105
+0 0 0 0 0 5 1 5 49050105
+0 0 0 0 0 6 1 5 49060105
+0 0 0 0 0 7 1 5 49070105
+0 0 0 0 0 8 1 5 49080105
+0 0 0 0 0 9 1 5 49090105
-"Time = 0.000000
--0.150000 49000104.0000000000000
-0.150000 49010104.0000000000000
-0.450000 49020104.0000000000000
-0.750000 49030104.0000000000000
-1.050000 49040104.0000000000000
-1.350000 49050104.0000000000000
-1.650000 49060104.0000000000000
-1.950000 49070104.0000000000000
-2.250000 49080104.0000000000000
-2.550000 49090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 49010105
+1 0 0 0 0 1 1 5 49010105
+1 0 0 0 0 2 1 5 49020105
+1 0 0 0 0 3 1 5 49030105
+1 0 0 0 0 4 1 5 49040105
+1 0 0 0 0 5 1 5 49050105
+1 0 0 0 0 6 1 5 49060105
+1 0 0 0 0 7 1 5 49070105
+1 0 0 0 0 8 1 5 49080105
+1 0 0 0 0 9 1 5 49090105
+
-"Time = 1.000000
--0.150000 49010104.0000000000000
-0.150000 49010104.0000000000000
-0.450000 49020104.0000000000000
-0.750000 49030104.0000000000000
-1.050000 49040104.0000000000000
-1.350000 49050104.0000000000000
-1.650000 49060104.0000000000000
-1.950000 49070104.0000000000000
-2.250000 49080104.0000000000000
-2.550000 49090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/fzz.yl b/CarpetAttic/Cart3dTest/test/axial/fzz.yl
index 8b5d7ab0a..64e1f44d3 100644
--- a/CarpetAttic/Cart3dTest/test/axial/fzz.yl
+++ b/CarpetAttic/Cart3dTest/test/axial/fzz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz y (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 0 5 49010005
+0 0 0 0 0 1 1 5 49010105
+0 0 0 0 0 1 2 5 49010205
+0 0 0 0 0 1 3 5 49010305
+0 0 0 0 0 1 4 5 49010405
+0 0 0 0 0 1 5 5 49010505
+0 0 0 0 0 1 6 5 49010605
+0 0 0 0 0 1 7 5 49010705
+0 0 0 0 0 1 8 5 49010805
+0 0 0 0 0 1 9 5 49010905
-"Time = 0.000000
--0.150000 49010004.0000000000000
-0.150000 49010104.0000000000000
-0.450000 49010204.0000000000000
-0.750000 49010304.0000000000000
-1.050000 49010404.0000000000000
-1.350000 49010504.0000000000000
-1.650000 49010604.0000000000000
-1.950000 49010704.0000000000000
-2.250000 49010804.0000000000000
-2.550000 49010904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 0 5 49010105
+1 0 0 0 0 1 1 5 49010105
+1 0 0 0 0 1 2 5 49010205
+1 0 0 0 0 1 3 5 49010305
+1 0 0 0 0 1 4 5 49010405
+1 0 0 0 0 1 5 5 49010505
+1 0 0 0 0 1 6 5 49010605
+1 0 0 0 0 1 7 5 49010705
+1 0 0 0 0 1 8 5 49010805
+1 0 0 0 0 1 9 5 49010905
+
-"Time = 1.000000
--0.150000 49010104.0000000000000
-0.150000 49010104.0000000000000
-0.450000 49010204.0000000000000
-0.750000 49010304.0000000000000
-1.050000 49010404.0000000000000
-1.350000 49010504.0000000000000
-1.650000 49010604.0000000000000
-1.950000 49010704.0000000000000
-2.250000 49010804.0000000000000
-2.550000 49010904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/fzz.zl b/CarpetAttic/Cart3dTest/test/axial/fzz.zl
index 679eb8386..7938772ff 100644
--- a/CarpetAttic/Cart3dTest/test/axial/fzz.zl
+++ b/CarpetAttic/Cart3dTest/test/axial/fzz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz z (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 1 0 49010100
+0 0 0 0 0 1 1 1 49010101
+0 0 0 0 0 1 1 2 49010102
+0 0 0 0 0 1 1 3 49010103
+0 0 0 0 0 1 1 4 49010104
+0 0 0 0 0 1 1 5 49010105
+0 0 0 0 0 1 1 6 49010106
+0 0 0 0 0 1 1 7 49010107
+0 0 0 0 0 1 1 8 49010108
+0 0 0 0 0 1 1 9 49010109
-"Time = 0.000000
--1.350000 49010100.0000000000000
--1.050000 49010101.0000000000000
--0.750000 49010102.0000000000000
--0.450000 49010103.0000000000000
--0.150000 49010104.0000000000000
-0.150000 49010105.0000000000000
-0.450000 49010106.0000000000000
-0.750000 49010107.0000000000000
-1.050000 49010108.0000000000000
-1.350000 49010109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 1 0 49010100
+1 0 0 0 0 1 1 1 49010101
+1 0 0 0 0 1 1 2 49010102
+1 0 0 0 0 1 1 3 49010103
+1 0 0 0 0 1 1 4 49010104
+1 0 0 0 0 1 1 5 49010105
+1 0 0 0 0 1 1 6 49010106
+1 0 0 0 0 1 1 7 49010107
+1 0 0 0 0 1 1 8 49010108
+1 0 0 0 0 1 1 9 49010109
+
-"Time = 1.000000
--1.350000 49010100.0000000000000
--1.050000 49010101.0000000000000
--0.750000 49010102.0000000000000
--0.450000 49010103.0000000000000
--0.150000 49010104.0000000000000
-0.150000 49010105.0000000000000
-0.450000 49010106.0000000000000
-0.750000 49010107.0000000000000
-1.050000 49010108.0000000000000
-1.350000 49010109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/s.xl b/CarpetAttic/Cart3dTest/test/axial/s.xl
index f180d0de1..6f44c81d5 100644
--- a/CarpetAttic/Cart3dTest/test/axial/s.xl
+++ b/CarpetAttic/Cart3dTest/test/axial/s.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::s x (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 1000105
+0 0 0 0 0 1 1 5 1010105
+0 0 0 0 0 2 1 5 1020105
+0 0 0 0 0 3 1 5 1030105
+0 0 0 0 0 4 1 5 1040105
+0 0 0 0 0 5 1 5 1050105
+0 0 0 0 0 6 1 5 1060105
+0 0 0 0 0 7 1 5 1070105
+0 0 0 0 0 8 1 5 1080105
+0 0 0 0 0 9 1 5 1090105
-"Time = 0.000000
--0.150000 1000104.0000000000000
-0.150000 1010104.0000000000000
-0.450000 1020104.0000000000000
-0.750000 1030104.0000000000000
-1.050000 1040104.0000000000000
-1.350000 1050104.0000000000000
-1.650000 1060104.0000000000000
-1.950000 1070104.0000000000000
-2.250000 1080104.0000000000000
-2.550000 1090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 1010105
+1 0 0 0 0 1 1 5 1010105
+1 0 0 0 0 2 1 5 1020105
+1 0 0 0 0 3 1 5 1030105
+1 0 0 0 0 4 1 5 1040105
+1 0 0 0 0 5 1 5 1050105
+1 0 0 0 0 6 1 5 1060105
+1 0 0 0 0 7 1 5 1070105
+1 0 0 0 0 8 1 5 1080105
+1 0 0 0 0 9 1 5 1090105
+
-"Time = 1.000000
--0.150000 1010104.0000000000000
-0.150000 1010104.0000000000000
-0.450000 1020104.0000000000000
-0.750000 1030104.0000000000000
-1.050000 1040104.0000000000000
-1.350000 1050104.0000000000000
-1.650000 1060104.0000000000000
-1.950000 1070104.0000000000000
-2.250000 1080104.0000000000000
-2.550000 1090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/s.yl b/CarpetAttic/Cart3dTest/test/axial/s.yl
index 9a2e06040..56b5a8a68 100644
--- a/CarpetAttic/Cart3dTest/test/axial/s.yl
+++ b/CarpetAttic/Cart3dTest/test/axial/s.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::s y (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 0 5 1010005
+0 0 0 0 0 1 1 5 1010105
+0 0 0 0 0 1 2 5 1010205
+0 0 0 0 0 1 3 5 1010305
+0 0 0 0 0 1 4 5 1010405
+0 0 0 0 0 1 5 5 1010505
+0 0 0 0 0 1 6 5 1010605
+0 0 0 0 0 1 7 5 1010705
+0 0 0 0 0 1 8 5 1010805
+0 0 0 0 0 1 9 5 1010905
-"Time = 0.000000
--0.150000 1010004.0000000000000
-0.150000 1010104.0000000000000
-0.450000 1010204.0000000000000
-0.750000 1010304.0000000000000
-1.050000 1010404.0000000000000
-1.350000 1010504.0000000000000
-1.650000 1010604.0000000000000
-1.950000 1010704.0000000000000
-2.250000 1010804.0000000000000
-2.550000 1010904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 0 5 1010105
+1 0 0 0 0 1 1 5 1010105
+1 0 0 0 0 1 2 5 1010205
+1 0 0 0 0 1 3 5 1010305
+1 0 0 0 0 1 4 5 1010405
+1 0 0 0 0 1 5 5 1010505
+1 0 0 0 0 1 6 5 1010605
+1 0 0 0 0 1 7 5 1010705
+1 0 0 0 0 1 8 5 1010805
+1 0 0 0 0 1 9 5 1010905
+
-"Time = 1.000000
--0.150000 1010104.0000000000000
-0.150000 1010104.0000000000000
-0.450000 1010204.0000000000000
-0.750000 1010304.0000000000000
-1.050000 1010404.0000000000000
-1.350000 1010504.0000000000000
-1.650000 1010604.0000000000000
-1.950000 1010704.0000000000000
-2.250000 1010804.0000000000000
-2.550000 1010904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/s.zl b/CarpetAttic/Cart3dTest/test/axial/s.zl
index ca49b62fa..ecff867a9 100644
--- a/CarpetAttic/Cart3dTest/test/axial/s.zl
+++ b/CarpetAttic/Cart3dTest/test/axial/s.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::s z (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 1 0 1010100
+0 0 0 0 0 1 1 1 1010101
+0 0 0 0 0 1 1 2 1010102
+0 0 0 0 0 1 1 3 1010103
+0 0 0 0 0 1 1 4 1010104
+0 0 0 0 0 1 1 5 1010105
+0 0 0 0 0 1 1 6 1010106
+0 0 0 0 0 1 1 7 1010107
+0 0 0 0 0 1 1 8 1010108
+0 0 0 0 0 1 1 9 1010109
-"Time = 0.000000
--1.350000 1010100.0000000000000
--1.050000 1010101.0000000000000
--0.750000 1010102.0000000000000
--0.450000 1010103.0000000000000
--0.150000 1010104.0000000000000
-0.150000 1010105.0000000000000
-0.450000 1010106.0000000000000
-0.750000 1010107.0000000000000
-1.050000 1010108.0000000000000
-1.350000 1010109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 1 0 1010100
+1 0 0 0 0 1 1 1 1010101
+1 0 0 0 0 1 1 2 1010102
+1 0 0 0 0 1 1 3 1010103
+1 0 0 0 0 1 1 4 1010104
+1 0 0 0 0 1 1 5 1010105
+1 0 0 0 0 1 1 6 1010106
+1 0 0 0 0 1 1 7 1010107
+1 0 0 0 0 1 1 8 1010108
+1 0 0 0 0 1 1 9 1010109
+
-"Time = 1.000000
--1.350000 1010100.0000000000000
--1.050000 1010101.0000000000000
--0.750000 1010102.0000000000000
--0.450000 1010103.0000000000000
--0.150000 1010104.0000000000000
-0.150000 1010105.0000000000000
-0.450000 1010106.0000000000000
-0.750000 1010107.0000000000000
-1.050000 1010108.0000000000000
-1.350000 1010109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/spher3d_r.xl b/CarpetAttic/Cart3dTest/test/axial/spher3d_r.xl
index aab231952..06617f607 100644
--- a/CarpetAttic/Cart3dTest/test/axial/spher3d_r.xl
+++ b/CarpetAttic/Cart3dTest/test/axial/spher3d_r.xl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r x (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 0.259807621135332
+0 0 0 0 0 1 1 5 0.259807621135332
+0 0 0 0 0 2 1 5 0.49749371855331
+0 0 0 0 0 3 1 5 0.779422863405995
+0 0 0 0 0 4 1 5 1.07121426428143
+0 0 0 0 0 5 1 5 1.36656503687164
+0 0 0 0 0 6 1 5 1.66358047596141
+0 0 0 0 0 7 1 5 1.9615045245933
+0 0 0 0 0 8 1 5 2.2599778759979
+0 0 0 0 0 9 1 5 2.5588083163848
-"Time = 0.000000
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
-2.550000 2.5588083163848
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 0.259807621135332
+1 0 0 0 0 1 1 5 0.259807621135332
+1 0 0 0 0 2 1 5 0.49749371855331
+1 0 0 0 0 3 1 5 0.779422863405995
+1 0 0 0 0 4 1 5 1.07121426428143
+1 0 0 0 0 5 1 5 1.36656503687164
+1 0 0 0 0 6 1 5 1.66358047596141
+1 0 0 0 0 7 1 5 1.9615045245933
+1 0 0 0 0 8 1 5 2.2599778759979
+1 0 0 0 0 9 1 5 2.5588083163848
+
-"Time = 1.000000
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
-2.550000 2.5588083163848
diff --git a/CarpetAttic/Cart3dTest/test/axial/spher3d_r.yl b/CarpetAttic/Cart3dTest/test/axial/spher3d_r.yl
index aab231952..1330e241c 100644
--- a/CarpetAttic/Cart3dTest/test/axial/spher3d_r.yl
+++ b/CarpetAttic/Cart3dTest/test/axial/spher3d_r.yl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r y (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 0 5 0.259807621135332
+0 0 0 0 0 1 1 5 0.259807621135332
+0 0 0 0 0 1 2 5 0.49749371855331
+0 0 0 0 0 1 3 5 0.779422863405995
+0 0 0 0 0 1 4 5 1.07121426428143
+0 0 0 0 0 1 5 5 1.36656503687164
+0 0 0 0 0 1 6 5 1.66358047596141
+0 0 0 0 0 1 7 5 1.9615045245933
+0 0 0 0 0 1 8 5 2.2599778759979
+0 0 0 0 0 1 9 5 2.5588083163848
-"Time = 0.000000
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
-2.550000 2.5588083163848
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 0 5 0.259807621135332
+1 0 0 0 0 1 1 5 0.259807621135332
+1 0 0 0 0 1 2 5 0.49749371855331
+1 0 0 0 0 1 3 5 0.779422863405995
+1 0 0 0 0 1 4 5 1.07121426428143
+1 0 0 0 0 1 5 5 1.36656503687164
+1 0 0 0 0 1 6 5 1.66358047596141
+1 0 0 0 0 1 7 5 1.9615045245933
+1 0 0 0 0 1 8 5 2.2599778759979
+1 0 0 0 0 1 9 5 2.5588083163848
+
-"Time = 1.000000
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
-2.550000 2.5588083163848
diff --git a/CarpetAttic/Cart3dTest/test/axial/spher3d_r.zl b/CarpetAttic/Cart3dTest/test/axial/spher3d_r.zl
index 2865c92e4..3d57bddf6 100644
--- a/CarpetAttic/Cart3dTest/test/axial/spher3d_r.zl
+++ b/CarpetAttic/Cart3dTest/test/axial/spher3d_r.zl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r z (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 1 0 1.36656503687164
+0 0 0 0 0 1 1 1 1.07121426428143
+0 0 0 0 0 1 1 2 0.779422863405995
+0 0 0 0 0 1 1 3 0.49749371855331
+0 0 0 0 0 1 1 4 0.259807621135332
+0 0 0 0 0 1 1 5 0.259807621135332
+0 0 0 0 0 1 1 6 0.49749371855331
+0 0 0 0 0 1 1 7 0.779422863405995
+0 0 0 0 0 1 1 8 1.07121426428143
+0 0 0 0 0 1 1 9 1.36656503687164
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 1 0 1.36656503687164
+1 0 0 0 0 1 1 1 1.07121426428143
+1 0 0 0 0 1 1 2 0.779422863405995
+1 0 0 0 0 1 1 3 0.49749371855331
+1 0 0 0 0 1 1 4 0.259807621135332
+1 0 0 0 0 1 1 5 0.259807621135332
+1 0 0 0 0 1 1 6 0.49749371855331
+1 0 0 0 0 1 1 7 0.779422863405995
+1 0 0 0 0 1 1 8 1.07121426428143
+1 0 0 0 0 1 1 9 1.36656503687164
+
-"Time = 1.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
diff --git a/CarpetAttic/Cart3dTest/test/axial/txx.xl b/CarpetAttic/Cart3dTest/test/axial/txx.xl
index d945768b4..5e0ce86aa 100644
--- a/CarpetAttic/Cart3dTest/test/axial/txx.xl
+++ b/CarpetAttic/Cart3dTest/test/axial/txx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx x (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 21000105
+0 0 0 0 0 1 1 5 21010105
+0 0 0 0 0 2 1 5 21020105
+0 0 0 0 0 3 1 5 21030105
+0 0 0 0 0 4 1 5 21040105
+0 0 0 0 0 5 1 5 21050105
+0 0 0 0 0 6 1 5 21060105
+0 0 0 0 0 7 1 5 21070105
+0 0 0 0 0 8 1 5 21080105
+0 0 0 0 0 9 1 5 21090105
-"Time = 0.000000
--0.150000 21000104.0000000000000
-0.150000 21010104.0000000000000
-0.450000 21020104.0000000000000
-0.750000 21030104.0000000000000
-1.050000 21040104.0000000000000
-1.350000 21050104.0000000000000
-1.650000 21060104.0000000000000
-1.950000 21070104.0000000000000
-2.250000 21080104.0000000000000
-2.550000 21090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 24010105
+1 0 0 0 0 1 1 5 21010105
+1 0 0 0 0 2 1 5 21020105
+1 0 0 0 0 3 1 5 21030105
+1 0 0 0 0 4 1 5 21040105
+1 0 0 0 0 5 1 5 21050105
+1 0 0 0 0 6 1 5 21060105
+1 0 0 0 0 7 1 5 21070105
+1 0 0 0 0 8 1 5 21080105
+1 0 0 0 0 9 1 5 21090105
+
-"Time = 1.000000
--0.150000 24010104.0000000000000
-0.150000 21010104.0000000000000
-0.450000 21020104.0000000000000
-0.750000 21030104.0000000000000
-1.050000 21040104.0000000000000
-1.350000 21050104.0000000000000
-1.650000 21060104.0000000000000
-1.950000 21070104.0000000000000
-2.250000 21080104.0000000000000
-2.550000 21090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/txx.yl b/CarpetAttic/Cart3dTest/test/axial/txx.yl
index 3cc6fc530..eaf0d1c4b 100644
--- a/CarpetAttic/Cart3dTest/test/axial/txx.yl
+++ b/CarpetAttic/Cart3dTest/test/axial/txx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx y (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 0 5 21010005
+0 0 0 0 0 1 1 5 21010105
+0 0 0 0 0 1 2 5 21010205
+0 0 0 0 0 1 3 5 21010305
+0 0 0 0 0 1 4 5 21010405
+0 0 0 0 0 1 5 5 21010505
+0 0 0 0 0 1 6 5 21010605
+0 0 0 0 0 1 7 5 21010705
+0 0 0 0 0 1 8 5 21010805
+0 0 0 0 0 1 9 5 21010905
-"Time = 0.000000
--0.150000 21010004.0000000000000
-0.150000 21010104.0000000000000
-0.450000 21010204.0000000000000
-0.750000 21010304.0000000000000
-1.050000 21010404.0000000000000
-1.350000 21010504.0000000000000
-1.650000 21010604.0000000000000
-1.950000 21010704.0000000000000
-2.250000 21010804.0000000000000
-2.550000 21010904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 0 5 24010105
+1 0 0 0 0 1 1 5 21010105
+1 0 0 0 0 1 2 5 21010205
+1 0 0 0 0 1 3 5 21010305
+1 0 0 0 0 1 4 5 21010405
+1 0 0 0 0 1 5 5 21010505
+1 0 0 0 0 1 6 5 21010605
+1 0 0 0 0 1 7 5 21010705
+1 0 0 0 0 1 8 5 21010805
+1 0 0 0 0 1 9 5 21010905
+
-"Time = 1.000000
--0.150000 24010104.0000000000000
-0.150000 21010104.0000000000000
-0.450000 21010204.0000000000000
-0.750000 21010304.0000000000000
-1.050000 21010404.0000000000000
-1.350000 21010504.0000000000000
-1.650000 21010604.0000000000000
-1.950000 21010704.0000000000000
-2.250000 21010804.0000000000000
-2.550000 21010904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/txx.zl b/CarpetAttic/Cart3dTest/test/axial/txx.zl
index c85e0313e..8b232a5d2 100644
--- a/CarpetAttic/Cart3dTest/test/axial/txx.zl
+++ b/CarpetAttic/Cart3dTest/test/axial/txx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx z (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 1 0 21010100
+0 0 0 0 0 1 1 1 21010101
+0 0 0 0 0 1 1 2 21010102
+0 0 0 0 0 1 1 3 21010103
+0 0 0 0 0 1 1 4 21010104
+0 0 0 0 0 1 1 5 21010105
+0 0 0 0 0 1 1 6 21010106
+0 0 0 0 0 1 1 7 21010107
+0 0 0 0 0 1 1 8 21010108
+0 0 0 0 0 1 1 9 21010109
-"Time = 0.000000
--1.350000 21010100.0000000000000
--1.050000 21010101.0000000000000
--0.750000 21010102.0000000000000
--0.450000 21010103.0000000000000
--0.150000 21010104.0000000000000
-0.150000 21010105.0000000000000
-0.450000 21010106.0000000000000
-0.750000 21010107.0000000000000
-1.050000 21010108.0000000000000
-1.350000 21010109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 1 0 21010100
+1 0 0 0 0 1 1 1 21010101
+1 0 0 0 0 1 1 2 21010102
+1 0 0 0 0 1 1 3 21010103
+1 0 0 0 0 1 1 4 21010104
+1 0 0 0 0 1 1 5 21010105
+1 0 0 0 0 1 1 6 21010106
+1 0 0 0 0 1 1 7 21010107
+1 0 0 0 0 1 1 8 21010108
+1 0 0 0 0 1 1 9 21010109
+
-"Time = 1.000000
--1.350000 21010100.0000000000000
--1.050000 21010101.0000000000000
--0.750000 21010102.0000000000000
--0.450000 21010103.0000000000000
--0.150000 21010104.0000000000000
-0.150000 21010105.0000000000000
-0.450000 21010106.0000000000000
-0.750000 21010107.0000000000000
-1.050000 21010108.0000000000000
-1.350000 21010109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/txy.xl b/CarpetAttic/Cart3dTest/test/axial/txy.xl
index 202f480c9..d5ab6c669 100644
--- a/CarpetAttic/Cart3dTest/test/axial/txy.xl
+++ b/CarpetAttic/Cart3dTest/test/axial/txy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy x (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 22000105
+0 0 0 0 0 1 1 5 22010105
+0 0 0 0 0 2 1 5 22020105
+0 0 0 0 0 3 1 5 22030105
+0 0 0 0 0 4 1 5 22040105
+0 0 0 0 0 5 1 5 22050105
+0 0 0 0 0 6 1 5 22060105
+0 0 0 0 0 7 1 5 22070105
+0 0 0 0 0 8 1 5 22080105
+0 0 0 0 0 9 1 5 22090105
-"Time = 0.000000
--0.150000 22000104.0000000000000
-0.150000 22010104.0000000000000
-0.450000 22020104.0000000000000
-0.750000 22030104.0000000000000
-1.050000 22040104.0000000000000
-1.350000 22050104.0000000000000
-1.650000 22060104.0000000000000
-1.950000 22070104.0000000000000
-2.250000 22080104.0000000000000
-2.550000 22090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 -22010105
+1 0 0 0 0 1 1 5 22010105
+1 0 0 0 0 2 1 5 22020105
+1 0 0 0 0 3 1 5 22030105
+1 0 0 0 0 4 1 5 22040105
+1 0 0 0 0 5 1 5 22050105
+1 0 0 0 0 6 1 5 22060105
+1 0 0 0 0 7 1 5 22070105
+1 0 0 0 0 8 1 5 22080105
+1 0 0 0 0 9 1 5 22090105
+
-"Time = 1.000000
--0.150000 -22010104.0000000000000
-0.150000 22010104.0000000000000
-0.450000 22020104.0000000000000
-0.750000 22030104.0000000000000
-1.050000 22040104.0000000000000
-1.350000 22050104.0000000000000
-1.650000 22060104.0000000000000
-1.950000 22070104.0000000000000
-2.250000 22080104.0000000000000
-2.550000 22090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/txy.yl b/CarpetAttic/Cart3dTest/test/axial/txy.yl
index f70fac0d4..39c046f5b 100644
--- a/CarpetAttic/Cart3dTest/test/axial/txy.yl
+++ b/CarpetAttic/Cart3dTest/test/axial/txy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy y (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 0 5 22010005
+0 0 0 0 0 1 1 5 22010105
+0 0 0 0 0 1 2 5 22010205
+0 0 0 0 0 1 3 5 22010305
+0 0 0 0 0 1 4 5 22010405
+0 0 0 0 0 1 5 5 22010505
+0 0 0 0 0 1 6 5 22010605
+0 0 0 0 0 1 7 5 22010705
+0 0 0 0 0 1 8 5 22010805
+0 0 0 0 0 1 9 5 22010905
-"Time = 0.000000
--0.150000 22010004.0000000000000
-0.150000 22010104.0000000000000
-0.450000 22010204.0000000000000
-0.750000 22010304.0000000000000
-1.050000 22010404.0000000000000
-1.350000 22010504.0000000000000
-1.650000 22010604.0000000000000
-1.950000 22010704.0000000000000
-2.250000 22010804.0000000000000
-2.550000 22010904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 0 5 -22010105
+1 0 0 0 0 1 1 5 22010105
+1 0 0 0 0 1 2 5 22010205
+1 0 0 0 0 1 3 5 22010305
+1 0 0 0 0 1 4 5 22010405
+1 0 0 0 0 1 5 5 22010505
+1 0 0 0 0 1 6 5 22010605
+1 0 0 0 0 1 7 5 22010705
+1 0 0 0 0 1 8 5 22010805
+1 0 0 0 0 1 9 5 22010905
+
-"Time = 1.000000
--0.150000 -22010104.0000000000000
-0.150000 22010104.0000000000000
-0.450000 22010204.0000000000000
-0.750000 22010304.0000000000000
-1.050000 22010404.0000000000000
-1.350000 22010504.0000000000000
-1.650000 22010604.0000000000000
-1.950000 22010704.0000000000000
-2.250000 22010804.0000000000000
-2.550000 22010904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/txy.zl b/CarpetAttic/Cart3dTest/test/axial/txy.zl
index a95441b6e..088dc0f42 100644
--- a/CarpetAttic/Cart3dTest/test/axial/txy.zl
+++ b/CarpetAttic/Cart3dTest/test/axial/txy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy z (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 1 0 22010100
+0 0 0 0 0 1 1 1 22010101
+0 0 0 0 0 1 1 2 22010102
+0 0 0 0 0 1 1 3 22010103
+0 0 0 0 0 1 1 4 22010104
+0 0 0 0 0 1 1 5 22010105
+0 0 0 0 0 1 1 6 22010106
+0 0 0 0 0 1 1 7 22010107
+0 0 0 0 0 1 1 8 22010108
+0 0 0 0 0 1 1 9 22010109
-"Time = 0.000000
--1.350000 22010100.0000000000000
--1.050000 22010101.0000000000000
--0.750000 22010102.0000000000000
--0.450000 22010103.0000000000000
--0.150000 22010104.0000000000000
-0.150000 22010105.0000000000000
-0.450000 22010106.0000000000000
-0.750000 22010107.0000000000000
-1.050000 22010108.0000000000000
-1.350000 22010109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 1 0 22010100
+1 0 0 0 0 1 1 1 22010101
+1 0 0 0 0 1 1 2 22010102
+1 0 0 0 0 1 1 3 22010103
+1 0 0 0 0 1 1 4 22010104
+1 0 0 0 0 1 1 5 22010105
+1 0 0 0 0 1 1 6 22010106
+1 0 0 0 0 1 1 7 22010107
+1 0 0 0 0 1 1 8 22010108
+1 0 0 0 0 1 1 9 22010109
+
-"Time = 1.000000
--1.350000 22010100.0000000000000
--1.050000 22010101.0000000000000
--0.750000 22010102.0000000000000
--0.450000 22010103.0000000000000
--0.150000 22010104.0000000000000
-0.150000 22010105.0000000000000
-0.450000 22010106.0000000000000
-0.750000 22010107.0000000000000
-1.050000 22010108.0000000000000
-1.350000 22010109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/txz.xl b/CarpetAttic/Cart3dTest/test/axial/txz.xl
index bafa0605c..b169805c8 100644
--- a/CarpetAttic/Cart3dTest/test/axial/txz.xl
+++ b/CarpetAttic/Cart3dTest/test/axial/txz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz x (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 23000105
+0 0 0 0 0 1 1 5 23010105
+0 0 0 0 0 2 1 5 23020105
+0 0 0 0 0 3 1 5 23030105
+0 0 0 0 0 4 1 5 23040105
+0 0 0 0 0 5 1 5 23050105
+0 0 0 0 0 6 1 5 23060105
+0 0 0 0 0 7 1 5 23070105
+0 0 0 0 0 8 1 5 23080105
+0 0 0 0 0 9 1 5 23090105
-"Time = 0.000000
--0.150000 23000104.0000000000000
-0.150000 23010104.0000000000000
-0.450000 23020104.0000000000000
-0.750000 23030104.0000000000000
-1.050000 23040104.0000000000000
-1.350000 23050104.0000000000000
-1.650000 23060104.0000000000000
-1.950000 23070104.0000000000000
-2.250000 23080104.0000000000000
-2.550000 23090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 -25010105
+1 0 0 0 0 1 1 5 23010105
+1 0 0 0 0 2 1 5 23020105
+1 0 0 0 0 3 1 5 23030105
+1 0 0 0 0 4 1 5 23040105
+1 0 0 0 0 5 1 5 23050105
+1 0 0 0 0 6 1 5 23060105
+1 0 0 0 0 7 1 5 23070105
+1 0 0 0 0 8 1 5 23080105
+1 0 0 0 0 9 1 5 23090105
+
-"Time = 1.000000
--0.150000 -25010104.0000000000000
-0.150000 23010104.0000000000000
-0.450000 23020104.0000000000000
-0.750000 23030104.0000000000000
-1.050000 23040104.0000000000000
-1.350000 23050104.0000000000000
-1.650000 23060104.0000000000000
-1.950000 23070104.0000000000000
-2.250000 23080104.0000000000000
-2.550000 23090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/txz.yl b/CarpetAttic/Cart3dTest/test/axial/txz.yl
index 9a82d10bf..4ca41bca3 100644
--- a/CarpetAttic/Cart3dTest/test/axial/txz.yl
+++ b/CarpetAttic/Cart3dTest/test/axial/txz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz y (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 0 5 23010005
+0 0 0 0 0 1 1 5 23010105
+0 0 0 0 0 1 2 5 23010205
+0 0 0 0 0 1 3 5 23010305
+0 0 0 0 0 1 4 5 23010405
+0 0 0 0 0 1 5 5 23010505
+0 0 0 0 0 1 6 5 23010605
+0 0 0 0 0 1 7 5 23010705
+0 0 0 0 0 1 8 5 23010805
+0 0 0 0 0 1 9 5 23010905
-"Time = 0.000000
--0.150000 23010004.0000000000000
-0.150000 23010104.0000000000000
-0.450000 23010204.0000000000000
-0.750000 23010304.0000000000000
-1.050000 23010404.0000000000000
-1.350000 23010504.0000000000000
-1.650000 23010604.0000000000000
-1.950000 23010704.0000000000000
-2.250000 23010804.0000000000000
-2.550000 23010904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 0 5 25010105
+1 0 0 0 0 1 1 5 23010105
+1 0 0 0 0 1 2 5 23010205
+1 0 0 0 0 1 3 5 23010305
+1 0 0 0 0 1 4 5 23010405
+1 0 0 0 0 1 5 5 23010505
+1 0 0 0 0 1 6 5 23010605
+1 0 0 0 0 1 7 5 23010705
+1 0 0 0 0 1 8 5 23010805
+1 0 0 0 0 1 9 5 23010905
+
-"Time = 1.000000
--0.150000 25010104.0000000000000
-0.150000 23010104.0000000000000
-0.450000 23010204.0000000000000
-0.750000 23010304.0000000000000
-1.050000 23010404.0000000000000
-1.350000 23010504.0000000000000
-1.650000 23010604.0000000000000
-1.950000 23010704.0000000000000
-2.250000 23010804.0000000000000
-2.550000 23010904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/txz.zl b/CarpetAttic/Cart3dTest/test/axial/txz.zl
index 3c7377330..31c60f77e 100644
--- a/CarpetAttic/Cart3dTest/test/axial/txz.zl
+++ b/CarpetAttic/Cart3dTest/test/axial/txz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz z (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 1 0 23010100
+0 0 0 0 0 1 1 1 23010101
+0 0 0 0 0 1 1 2 23010102
+0 0 0 0 0 1 1 3 23010103
+0 0 0 0 0 1 1 4 23010104
+0 0 0 0 0 1 1 5 23010105
+0 0 0 0 0 1 1 6 23010106
+0 0 0 0 0 1 1 7 23010107
+0 0 0 0 0 1 1 8 23010108
+0 0 0 0 0 1 1 9 23010109
-"Time = 0.000000
--1.350000 23010100.0000000000000
--1.050000 23010101.0000000000000
--0.750000 23010102.0000000000000
--0.450000 23010103.0000000000000
--0.150000 23010104.0000000000000
-0.150000 23010105.0000000000000
-0.450000 23010106.0000000000000
-0.750000 23010107.0000000000000
-1.050000 23010108.0000000000000
-1.350000 23010109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 1 0 23010100
+1 0 0 0 0 1 1 1 23010101
+1 0 0 0 0 1 1 2 23010102
+1 0 0 0 0 1 1 3 23010103
+1 0 0 0 0 1 1 4 23010104
+1 0 0 0 0 1 1 5 23010105
+1 0 0 0 0 1 1 6 23010106
+1 0 0 0 0 1 1 7 23010107
+1 0 0 0 0 1 1 8 23010108
+1 0 0 0 0 1 1 9 23010109
+
-"Time = 1.000000
--1.350000 23010100.0000000000000
--1.050000 23010101.0000000000000
--0.750000 23010102.0000000000000
--0.450000 23010103.0000000000000
--0.150000 23010104.0000000000000
-0.150000 23010105.0000000000000
-0.450000 23010106.0000000000000
-0.750000 23010107.0000000000000
-1.050000 23010108.0000000000000
-1.350000 23010109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/tyy.xl b/CarpetAttic/Cart3dTest/test/axial/tyy.xl
index 223ad85bc..5a4004448 100644
--- a/CarpetAttic/Cart3dTest/test/axial/tyy.xl
+++ b/CarpetAttic/Cart3dTest/test/axial/tyy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy x (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 24000105
+0 0 0 0 0 1 1 5 24010105
+0 0 0 0 0 2 1 5 24020105
+0 0 0 0 0 3 1 5 24030105
+0 0 0 0 0 4 1 5 24040105
+0 0 0 0 0 5 1 5 24050105
+0 0 0 0 0 6 1 5 24060105
+0 0 0 0 0 7 1 5 24070105
+0 0 0 0 0 8 1 5 24080105
+0 0 0 0 0 9 1 5 24090105
-"Time = 0.000000
--0.150000 24000104.0000000000000
-0.150000 24010104.0000000000000
-0.450000 24020104.0000000000000
-0.750000 24030104.0000000000000
-1.050000 24040104.0000000000000
-1.350000 24050104.0000000000000
-1.650000 24060104.0000000000000
-1.950000 24070104.0000000000000
-2.250000 24080104.0000000000000
-2.550000 24090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 21010105
+1 0 0 0 0 1 1 5 24010105
+1 0 0 0 0 2 1 5 24020105
+1 0 0 0 0 3 1 5 24030105
+1 0 0 0 0 4 1 5 24040105
+1 0 0 0 0 5 1 5 24050105
+1 0 0 0 0 6 1 5 24060105
+1 0 0 0 0 7 1 5 24070105
+1 0 0 0 0 8 1 5 24080105
+1 0 0 0 0 9 1 5 24090105
+
-"Time = 1.000000
--0.150000 21010104.0000000000000
-0.150000 24010104.0000000000000
-0.450000 24020104.0000000000000
-0.750000 24030104.0000000000000
-1.050000 24040104.0000000000000
-1.350000 24050104.0000000000000
-1.650000 24060104.0000000000000
-1.950000 24070104.0000000000000
-2.250000 24080104.0000000000000
-2.550000 24090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/tyy.yl b/CarpetAttic/Cart3dTest/test/axial/tyy.yl
index 00c29026b..342b2e2e2 100644
--- a/CarpetAttic/Cart3dTest/test/axial/tyy.yl
+++ b/CarpetAttic/Cart3dTest/test/axial/tyy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy y (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 0 5 24010005
+0 0 0 0 0 1 1 5 24010105
+0 0 0 0 0 1 2 5 24010205
+0 0 0 0 0 1 3 5 24010305
+0 0 0 0 0 1 4 5 24010405
+0 0 0 0 0 1 5 5 24010505
+0 0 0 0 0 1 6 5 24010605
+0 0 0 0 0 1 7 5 24010705
+0 0 0 0 0 1 8 5 24010805
+0 0 0 0 0 1 9 5 24010905
-"Time = 0.000000
--0.150000 24010004.0000000000000
-0.150000 24010104.0000000000000
-0.450000 24010204.0000000000000
-0.750000 24010304.0000000000000
-1.050000 24010404.0000000000000
-1.350000 24010504.0000000000000
-1.650000 24010604.0000000000000
-1.950000 24010704.0000000000000
-2.250000 24010804.0000000000000
-2.550000 24010904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 0 5 21010105
+1 0 0 0 0 1 1 5 24010105
+1 0 0 0 0 1 2 5 24010205
+1 0 0 0 0 1 3 5 24010305
+1 0 0 0 0 1 4 5 24010405
+1 0 0 0 0 1 5 5 24010505
+1 0 0 0 0 1 6 5 24010605
+1 0 0 0 0 1 7 5 24010705
+1 0 0 0 0 1 8 5 24010805
+1 0 0 0 0 1 9 5 24010905
+
-"Time = 1.000000
--0.150000 21010104.0000000000000
-0.150000 24010104.0000000000000
-0.450000 24010204.0000000000000
-0.750000 24010304.0000000000000
-1.050000 24010404.0000000000000
-1.350000 24010504.0000000000000
-1.650000 24010604.0000000000000
-1.950000 24010704.0000000000000
-2.250000 24010804.0000000000000
-2.550000 24010904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/tyy.zl b/CarpetAttic/Cart3dTest/test/axial/tyy.zl
index 430fa022c..99058da70 100644
--- a/CarpetAttic/Cart3dTest/test/axial/tyy.zl
+++ b/CarpetAttic/Cart3dTest/test/axial/tyy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy z (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 1 0 24010100
+0 0 0 0 0 1 1 1 24010101
+0 0 0 0 0 1 1 2 24010102
+0 0 0 0 0 1 1 3 24010103
+0 0 0 0 0 1 1 4 24010104
+0 0 0 0 0 1 1 5 24010105
+0 0 0 0 0 1 1 6 24010106
+0 0 0 0 0 1 1 7 24010107
+0 0 0 0 0 1 1 8 24010108
+0 0 0 0 0 1 1 9 24010109
-"Time = 0.000000
--1.350000 24010100.0000000000000
--1.050000 24010101.0000000000000
--0.750000 24010102.0000000000000
--0.450000 24010103.0000000000000
--0.150000 24010104.0000000000000
-0.150000 24010105.0000000000000
-0.450000 24010106.0000000000000
-0.750000 24010107.0000000000000
-1.050000 24010108.0000000000000
-1.350000 24010109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 1 0 24010100
+1 0 0 0 0 1 1 1 24010101
+1 0 0 0 0 1 1 2 24010102
+1 0 0 0 0 1 1 3 24010103
+1 0 0 0 0 1 1 4 24010104
+1 0 0 0 0 1 1 5 24010105
+1 0 0 0 0 1 1 6 24010106
+1 0 0 0 0 1 1 7 24010107
+1 0 0 0 0 1 1 8 24010108
+1 0 0 0 0 1 1 9 24010109
+
-"Time = 1.000000
--1.350000 24010100.0000000000000
--1.050000 24010101.0000000000000
--0.750000 24010102.0000000000000
--0.450000 24010103.0000000000000
--0.150000 24010104.0000000000000
-0.150000 24010105.0000000000000
-0.450000 24010106.0000000000000
-0.750000 24010107.0000000000000
-1.050000 24010108.0000000000000
-1.350000 24010109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/tyz.xl b/CarpetAttic/Cart3dTest/test/axial/tyz.xl
index a2af2e270..3e161221f 100644
--- a/CarpetAttic/Cart3dTest/test/axial/tyz.xl
+++ b/CarpetAttic/Cart3dTest/test/axial/tyz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz x (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 25000105
+0 0 0 0 0 1 1 5 25010105
+0 0 0 0 0 2 1 5 25020105
+0 0 0 0 0 3 1 5 25030105
+0 0 0 0 0 4 1 5 25040105
+0 0 0 0 0 5 1 5 25050105
+0 0 0 0 0 6 1 5 25060105
+0 0 0 0 0 7 1 5 25070105
+0 0 0 0 0 8 1 5 25080105
+0 0 0 0 0 9 1 5 25090105
-"Time = 0.000000
--0.150000 25000104.0000000000000
-0.150000 25010104.0000000000000
-0.450000 25020104.0000000000000
-0.750000 25030104.0000000000000
-1.050000 25040104.0000000000000
-1.350000 25050104.0000000000000
-1.650000 25060104.0000000000000
-1.950000 25070104.0000000000000
-2.250000 25080104.0000000000000
-2.550000 25090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 23010105
+1 0 0 0 0 1 1 5 25010105
+1 0 0 0 0 2 1 5 25020105
+1 0 0 0 0 3 1 5 25030105
+1 0 0 0 0 4 1 5 25040105
+1 0 0 0 0 5 1 5 25050105
+1 0 0 0 0 6 1 5 25060105
+1 0 0 0 0 7 1 5 25070105
+1 0 0 0 0 8 1 5 25080105
+1 0 0 0 0 9 1 5 25090105
+
-"Time = 1.000000
--0.150000 23010104.0000000000000
-0.150000 25010104.0000000000000
-0.450000 25020104.0000000000000
-0.750000 25030104.0000000000000
-1.050000 25040104.0000000000000
-1.350000 25050104.0000000000000
-1.650000 25060104.0000000000000
-1.950000 25070104.0000000000000
-2.250000 25080104.0000000000000
-2.550000 25090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/tyz.yl b/CarpetAttic/Cart3dTest/test/axial/tyz.yl
index 584c6d25d..9aac76422 100644
--- a/CarpetAttic/Cart3dTest/test/axial/tyz.yl
+++ b/CarpetAttic/Cart3dTest/test/axial/tyz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz y (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 0 5 25010005
+0 0 0 0 0 1 1 5 25010105
+0 0 0 0 0 1 2 5 25010205
+0 0 0 0 0 1 3 5 25010305
+0 0 0 0 0 1 4 5 25010405
+0 0 0 0 0 1 5 5 25010505
+0 0 0 0 0 1 6 5 25010605
+0 0 0 0 0 1 7 5 25010705
+0 0 0 0 0 1 8 5 25010805
+0 0 0 0 0 1 9 5 25010905
-"Time = 0.000000
--0.150000 25010004.0000000000000
-0.150000 25010104.0000000000000
-0.450000 25010204.0000000000000
-0.750000 25010304.0000000000000
-1.050000 25010404.0000000000000
-1.350000 25010504.0000000000000
-1.650000 25010604.0000000000000
-1.950000 25010704.0000000000000
-2.250000 25010804.0000000000000
-2.550000 25010904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 0 5 -23010105
+1 0 0 0 0 1 1 5 25010105
+1 0 0 0 0 1 2 5 25010205
+1 0 0 0 0 1 3 5 25010305
+1 0 0 0 0 1 4 5 25010405
+1 0 0 0 0 1 5 5 25010505
+1 0 0 0 0 1 6 5 25010605
+1 0 0 0 0 1 7 5 25010705
+1 0 0 0 0 1 8 5 25010805
+1 0 0 0 0 1 9 5 25010905
+
-"Time = 1.000000
--0.150000 -23010104.0000000000000
-0.150000 25010104.0000000000000
-0.450000 25010204.0000000000000
-0.750000 25010304.0000000000000
-1.050000 25010404.0000000000000
-1.350000 25010504.0000000000000
-1.650000 25010604.0000000000000
-1.950000 25010704.0000000000000
-2.250000 25010804.0000000000000
-2.550000 25010904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/tyz.zl b/CarpetAttic/Cart3dTest/test/axial/tyz.zl
index 884689a05..e68a368f9 100644
--- a/CarpetAttic/Cart3dTest/test/axial/tyz.zl
+++ b/CarpetAttic/Cart3dTest/test/axial/tyz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz z (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 1 0 25010100
+0 0 0 0 0 1 1 1 25010101
+0 0 0 0 0 1 1 2 25010102
+0 0 0 0 0 1 1 3 25010103
+0 0 0 0 0 1 1 4 25010104
+0 0 0 0 0 1 1 5 25010105
+0 0 0 0 0 1 1 6 25010106
+0 0 0 0 0 1 1 7 25010107
+0 0 0 0 0 1 1 8 25010108
+0 0 0 0 0 1 1 9 25010109
-"Time = 0.000000
--1.350000 25010100.0000000000000
--1.050000 25010101.0000000000000
--0.750000 25010102.0000000000000
--0.450000 25010103.0000000000000
--0.150000 25010104.0000000000000
-0.150000 25010105.0000000000000
-0.450000 25010106.0000000000000
-0.750000 25010107.0000000000000
-1.050000 25010108.0000000000000
-1.350000 25010109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 1 0 25010100
+1 0 0 0 0 1 1 1 25010101
+1 0 0 0 0 1 1 2 25010102
+1 0 0 0 0 1 1 3 25010103
+1 0 0 0 0 1 1 4 25010104
+1 0 0 0 0 1 1 5 25010105
+1 0 0 0 0 1 1 6 25010106
+1 0 0 0 0 1 1 7 25010107
+1 0 0 0 0 1 1 8 25010108
+1 0 0 0 0 1 1 9 25010109
+
-"Time = 1.000000
--1.350000 25010100.0000000000000
--1.050000 25010101.0000000000000
--0.750000 25010102.0000000000000
--0.450000 25010103.0000000000000
--0.150000 25010104.0000000000000
-0.150000 25010105.0000000000000
-0.450000 25010106.0000000000000
-0.750000 25010107.0000000000000
-1.050000 25010108.0000000000000
-1.350000 25010109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/tzz.xl b/CarpetAttic/Cart3dTest/test/axial/tzz.xl
index d144b8f24..2a6c37dc0 100644
--- a/CarpetAttic/Cart3dTest/test/axial/tzz.xl
+++ b/CarpetAttic/Cart3dTest/test/axial/tzz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz x (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 26000105
+0 0 0 0 0 1 1 5 26010105
+0 0 0 0 0 2 1 5 26020105
+0 0 0 0 0 3 1 5 26030105
+0 0 0 0 0 4 1 5 26040105
+0 0 0 0 0 5 1 5 26050105
+0 0 0 0 0 6 1 5 26060105
+0 0 0 0 0 7 1 5 26070105
+0 0 0 0 0 8 1 5 26080105
+0 0 0 0 0 9 1 5 26090105
-"Time = 0.000000
--0.150000 26000104.0000000000000
-0.150000 26010104.0000000000000
-0.450000 26020104.0000000000000
-0.750000 26030104.0000000000000
-1.050000 26040104.0000000000000
-1.350000 26050104.0000000000000
-1.650000 26060104.0000000000000
-1.950000 26070104.0000000000000
-2.250000 26080104.0000000000000
-2.550000 26090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 26010105
+1 0 0 0 0 1 1 5 26010105
+1 0 0 0 0 2 1 5 26020105
+1 0 0 0 0 3 1 5 26030105
+1 0 0 0 0 4 1 5 26040105
+1 0 0 0 0 5 1 5 26050105
+1 0 0 0 0 6 1 5 26060105
+1 0 0 0 0 7 1 5 26070105
+1 0 0 0 0 8 1 5 26080105
+1 0 0 0 0 9 1 5 26090105
+
-"Time = 1.000000
--0.150000 26010104.0000000000000
-0.150000 26010104.0000000000000
-0.450000 26020104.0000000000000
-0.750000 26030104.0000000000000
-1.050000 26040104.0000000000000
-1.350000 26050104.0000000000000
-1.650000 26060104.0000000000000
-1.950000 26070104.0000000000000
-2.250000 26080104.0000000000000
-2.550000 26090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/tzz.yl b/CarpetAttic/Cart3dTest/test/axial/tzz.yl
index bfb213a74..31a81b3ca 100644
--- a/CarpetAttic/Cart3dTest/test/axial/tzz.yl
+++ b/CarpetAttic/Cart3dTest/test/axial/tzz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz y (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 0 5 26010005
+0 0 0 0 0 1 1 5 26010105
+0 0 0 0 0 1 2 5 26010205
+0 0 0 0 0 1 3 5 26010305
+0 0 0 0 0 1 4 5 26010405
+0 0 0 0 0 1 5 5 26010505
+0 0 0 0 0 1 6 5 26010605
+0 0 0 0 0 1 7 5 26010705
+0 0 0 0 0 1 8 5 26010805
+0 0 0 0 0 1 9 5 26010905
-"Time = 0.000000
--0.150000 26010004.0000000000000
-0.150000 26010104.0000000000000
-0.450000 26010204.0000000000000
-0.750000 26010304.0000000000000
-1.050000 26010404.0000000000000
-1.350000 26010504.0000000000000
-1.650000 26010604.0000000000000
-1.950000 26010704.0000000000000
-2.250000 26010804.0000000000000
-2.550000 26010904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 0 5 26010105
+1 0 0 0 0 1 1 5 26010105
+1 0 0 0 0 1 2 5 26010205
+1 0 0 0 0 1 3 5 26010305
+1 0 0 0 0 1 4 5 26010405
+1 0 0 0 0 1 5 5 26010505
+1 0 0 0 0 1 6 5 26010605
+1 0 0 0 0 1 7 5 26010705
+1 0 0 0 0 1 8 5 26010805
+1 0 0 0 0 1 9 5 26010905
+
-"Time = 1.000000
--0.150000 26010104.0000000000000
-0.150000 26010104.0000000000000
-0.450000 26010204.0000000000000
-0.750000 26010304.0000000000000
-1.050000 26010404.0000000000000
-1.350000 26010504.0000000000000
-1.650000 26010604.0000000000000
-1.950000 26010704.0000000000000
-2.250000 26010804.0000000000000
-2.550000 26010904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/tzz.zl b/CarpetAttic/Cart3dTest/test/axial/tzz.zl
index 4d6ede378..b57e0686c 100644
--- a/CarpetAttic/Cart3dTest/test/axial/tzz.zl
+++ b/CarpetAttic/Cart3dTest/test/axial/tzz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz z (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 1 0 26010100
+0 0 0 0 0 1 1 1 26010101
+0 0 0 0 0 1 1 2 26010102
+0 0 0 0 0 1 1 3 26010103
+0 0 0 0 0 1 1 4 26010104
+0 0 0 0 0 1 1 5 26010105
+0 0 0 0 0 1 1 6 26010106
+0 0 0 0 0 1 1 7 26010107
+0 0 0 0 0 1 1 8 26010108
+0 0 0 0 0 1 1 9 26010109
-"Time = 0.000000
--1.350000 26010100.0000000000000
--1.050000 26010101.0000000000000
--0.750000 26010102.0000000000000
--0.450000 26010103.0000000000000
--0.150000 26010104.0000000000000
-0.150000 26010105.0000000000000
-0.450000 26010106.0000000000000
-0.750000 26010107.0000000000000
-1.050000 26010108.0000000000000
-1.350000 26010109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 1 0 26010100
+1 0 0 0 0 1 1 1 26010101
+1 0 0 0 0 1 1 2 26010102
+1 0 0 0 0 1 1 3 26010103
+1 0 0 0 0 1 1 4 26010104
+1 0 0 0 0 1 1 5 26010105
+1 0 0 0 0 1 1 6 26010106
+1 0 0 0 0 1 1 7 26010107
+1 0 0 0 0 1 1 8 26010108
+1 0 0 0 0 1 1 9 26010109
+
-"Time = 1.000000
--1.350000 26010100.0000000000000
--1.050000 26010101.0000000000000
--0.750000 26010102.0000000000000
--0.450000 26010103.0000000000000
--0.150000 26010104.0000000000000
-0.150000 26010105.0000000000000
-0.450000 26010106.0000000000000
-0.750000 26010107.0000000000000
-1.050000 26010108.0000000000000
-1.350000 26010109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/vx.xl b/CarpetAttic/Cart3dTest/test/axial/vx.xl
index 711668725..1d1f5ee9c 100644
--- a/CarpetAttic/Cart3dTest/test/axial/vx.xl
+++ b/CarpetAttic/Cart3dTest/test/axial/vx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx x (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 11000105
+0 0 0 0 0 1 1 5 11010105
+0 0 0 0 0 2 1 5 11020105
+0 0 0 0 0 3 1 5 11030105
+0 0 0 0 0 4 1 5 11040105
+0 0 0 0 0 5 1 5 11050105
+0 0 0 0 0 6 1 5 11060105
+0 0 0 0 0 7 1 5 11070105
+0 0 0 0 0 8 1 5 11080105
+0 0 0 0 0 9 1 5 11090105
-"Time = 0.000000
--0.150000 11000104.0000000000000
-0.150000 11010104.0000000000000
-0.450000 11020104.0000000000000
-0.750000 11030104.0000000000000
-1.050000 11040104.0000000000000
-1.350000 11050104.0000000000000
-1.650000 11060104.0000000000000
-1.950000 11070104.0000000000000
-2.250000 11080104.0000000000000
-2.550000 11090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 -12010105
+1 0 0 0 0 1 1 5 11010105
+1 0 0 0 0 2 1 5 11020105
+1 0 0 0 0 3 1 5 11030105
+1 0 0 0 0 4 1 5 11040105
+1 0 0 0 0 5 1 5 11050105
+1 0 0 0 0 6 1 5 11060105
+1 0 0 0 0 7 1 5 11070105
+1 0 0 0 0 8 1 5 11080105
+1 0 0 0 0 9 1 5 11090105
+
-"Time = 1.000000
--0.150000 -12010104.0000000000000
-0.150000 11010104.0000000000000
-0.450000 11020104.0000000000000
-0.750000 11030104.0000000000000
-1.050000 11040104.0000000000000
-1.350000 11050104.0000000000000
-1.650000 11060104.0000000000000
-1.950000 11070104.0000000000000
-2.250000 11080104.0000000000000
-2.550000 11090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/vx.yl b/CarpetAttic/Cart3dTest/test/axial/vx.yl
index 10da5c2aa..a22ccb9bf 100644
--- a/CarpetAttic/Cart3dTest/test/axial/vx.yl
+++ b/CarpetAttic/Cart3dTest/test/axial/vx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx y (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 0 5 11010005
+0 0 0 0 0 1 1 5 11010105
+0 0 0 0 0 1 2 5 11010205
+0 0 0 0 0 1 3 5 11010305
+0 0 0 0 0 1 4 5 11010405
+0 0 0 0 0 1 5 5 11010505
+0 0 0 0 0 1 6 5 11010605
+0 0 0 0 0 1 7 5 11010705
+0 0 0 0 0 1 8 5 11010805
+0 0 0 0 0 1 9 5 11010905
-"Time = 0.000000
--0.150000 11010004.0000000000000
-0.150000 11010104.0000000000000
-0.450000 11010204.0000000000000
-0.750000 11010304.0000000000000
-1.050000 11010404.0000000000000
-1.350000 11010504.0000000000000
-1.650000 11010604.0000000000000
-1.950000 11010704.0000000000000
-2.250000 11010804.0000000000000
-2.550000 11010904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 0 5 12010105
+1 0 0 0 0 1 1 5 11010105
+1 0 0 0 0 1 2 5 11010205
+1 0 0 0 0 1 3 5 11010305
+1 0 0 0 0 1 4 5 11010405
+1 0 0 0 0 1 5 5 11010505
+1 0 0 0 0 1 6 5 11010605
+1 0 0 0 0 1 7 5 11010705
+1 0 0 0 0 1 8 5 11010805
+1 0 0 0 0 1 9 5 11010905
+
-"Time = 1.000000
--0.150000 12010104.0000000000000
-0.150000 11010104.0000000000000
-0.450000 11010204.0000000000000
-0.750000 11010304.0000000000000
-1.050000 11010404.0000000000000
-1.350000 11010504.0000000000000
-1.650000 11010604.0000000000000
-1.950000 11010704.0000000000000
-2.250000 11010804.0000000000000
-2.550000 11010904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/vx.zl b/CarpetAttic/Cart3dTest/test/axial/vx.zl
index 7a9e4dfb3..71aa1c4ad 100644
--- a/CarpetAttic/Cart3dTest/test/axial/vx.zl
+++ b/CarpetAttic/Cart3dTest/test/axial/vx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx z (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 1 0 11010100
+0 0 0 0 0 1 1 1 11010101
+0 0 0 0 0 1 1 2 11010102
+0 0 0 0 0 1 1 3 11010103
+0 0 0 0 0 1 1 4 11010104
+0 0 0 0 0 1 1 5 11010105
+0 0 0 0 0 1 1 6 11010106
+0 0 0 0 0 1 1 7 11010107
+0 0 0 0 0 1 1 8 11010108
+0 0 0 0 0 1 1 9 11010109
-"Time = 0.000000
--1.350000 11010100.0000000000000
--1.050000 11010101.0000000000000
--0.750000 11010102.0000000000000
--0.450000 11010103.0000000000000
--0.150000 11010104.0000000000000
-0.150000 11010105.0000000000000
-0.450000 11010106.0000000000000
-0.750000 11010107.0000000000000
-1.050000 11010108.0000000000000
-1.350000 11010109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 1 0 11010100
+1 0 0 0 0 1 1 1 11010101
+1 0 0 0 0 1 1 2 11010102
+1 0 0 0 0 1 1 3 11010103
+1 0 0 0 0 1 1 4 11010104
+1 0 0 0 0 1 1 5 11010105
+1 0 0 0 0 1 1 6 11010106
+1 0 0 0 0 1 1 7 11010107
+1 0 0 0 0 1 1 8 11010108
+1 0 0 0 0 1 1 9 11010109
+
-"Time = 1.000000
--1.350000 11010100.0000000000000
--1.050000 11010101.0000000000000
--0.750000 11010102.0000000000000
--0.450000 11010103.0000000000000
--0.150000 11010104.0000000000000
-0.150000 11010105.0000000000000
-0.450000 11010106.0000000000000
-0.750000 11010107.0000000000000
-1.050000 11010108.0000000000000
-1.350000 11010109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/vy.xl b/CarpetAttic/Cart3dTest/test/axial/vy.xl
index 3517aada5..0bb3592ee 100644
--- a/CarpetAttic/Cart3dTest/test/axial/vy.xl
+++ b/CarpetAttic/Cart3dTest/test/axial/vy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy x (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 12000105
+0 0 0 0 0 1 1 5 12010105
+0 0 0 0 0 2 1 5 12020105
+0 0 0 0 0 3 1 5 12030105
+0 0 0 0 0 4 1 5 12040105
+0 0 0 0 0 5 1 5 12050105
+0 0 0 0 0 6 1 5 12060105
+0 0 0 0 0 7 1 5 12070105
+0 0 0 0 0 8 1 5 12080105
+0 0 0 0 0 9 1 5 12090105
-"Time = 0.000000
--0.150000 12000104.0000000000000
-0.150000 12010104.0000000000000
-0.450000 12020104.0000000000000
-0.750000 12030104.0000000000000
-1.050000 12040104.0000000000000
-1.350000 12050104.0000000000000
-1.650000 12060104.0000000000000
-1.950000 12070104.0000000000000
-2.250000 12080104.0000000000000
-2.550000 12090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 11010105
+1 0 0 0 0 1 1 5 12010105
+1 0 0 0 0 2 1 5 12020105
+1 0 0 0 0 3 1 5 12030105
+1 0 0 0 0 4 1 5 12040105
+1 0 0 0 0 5 1 5 12050105
+1 0 0 0 0 6 1 5 12060105
+1 0 0 0 0 7 1 5 12070105
+1 0 0 0 0 8 1 5 12080105
+1 0 0 0 0 9 1 5 12090105
+
-"Time = 1.000000
--0.150000 11010104.0000000000000
-0.150000 12010104.0000000000000
-0.450000 12020104.0000000000000
-0.750000 12030104.0000000000000
-1.050000 12040104.0000000000000
-1.350000 12050104.0000000000000
-1.650000 12060104.0000000000000
-1.950000 12070104.0000000000000
-2.250000 12080104.0000000000000
-2.550000 12090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/vy.yl b/CarpetAttic/Cart3dTest/test/axial/vy.yl
index 11e7f823d..071b9caf8 100644
--- a/CarpetAttic/Cart3dTest/test/axial/vy.yl
+++ b/CarpetAttic/Cart3dTest/test/axial/vy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy y (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 0 5 12010005
+0 0 0 0 0 1 1 5 12010105
+0 0 0 0 0 1 2 5 12010205
+0 0 0 0 0 1 3 5 12010305
+0 0 0 0 0 1 4 5 12010405
+0 0 0 0 0 1 5 5 12010505
+0 0 0 0 0 1 6 5 12010605
+0 0 0 0 0 1 7 5 12010705
+0 0 0 0 0 1 8 5 12010805
+0 0 0 0 0 1 9 5 12010905
-"Time = 0.000000
--0.150000 12010004.0000000000000
-0.150000 12010104.0000000000000
-0.450000 12010204.0000000000000
-0.750000 12010304.0000000000000
-1.050000 12010404.0000000000000
-1.350000 12010504.0000000000000
-1.650000 12010604.0000000000000
-1.950000 12010704.0000000000000
-2.250000 12010804.0000000000000
-2.550000 12010904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 0 5 -11010105
+1 0 0 0 0 1 1 5 12010105
+1 0 0 0 0 1 2 5 12010205
+1 0 0 0 0 1 3 5 12010305
+1 0 0 0 0 1 4 5 12010405
+1 0 0 0 0 1 5 5 12010505
+1 0 0 0 0 1 6 5 12010605
+1 0 0 0 0 1 7 5 12010705
+1 0 0 0 0 1 8 5 12010805
+1 0 0 0 0 1 9 5 12010905
+
-"Time = 1.000000
--0.150000 -11010104.0000000000000
-0.150000 12010104.0000000000000
-0.450000 12010204.0000000000000
-0.750000 12010304.0000000000000
-1.050000 12010404.0000000000000
-1.350000 12010504.0000000000000
-1.650000 12010604.0000000000000
-1.950000 12010704.0000000000000
-2.250000 12010804.0000000000000
-2.550000 12010904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/vy.zl b/CarpetAttic/Cart3dTest/test/axial/vy.zl
index ba1eab770..7eb4d9f75 100644
--- a/CarpetAttic/Cart3dTest/test/axial/vy.zl
+++ b/CarpetAttic/Cart3dTest/test/axial/vy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy z (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 1 0 12010100
+0 0 0 0 0 1 1 1 12010101
+0 0 0 0 0 1 1 2 12010102
+0 0 0 0 0 1 1 3 12010103
+0 0 0 0 0 1 1 4 12010104
+0 0 0 0 0 1 1 5 12010105
+0 0 0 0 0 1 1 6 12010106
+0 0 0 0 0 1 1 7 12010107
+0 0 0 0 0 1 1 8 12010108
+0 0 0 0 0 1 1 9 12010109
-"Time = 0.000000
--1.350000 12010100.0000000000000
--1.050000 12010101.0000000000000
--0.750000 12010102.0000000000000
--0.450000 12010103.0000000000000
--0.150000 12010104.0000000000000
-0.150000 12010105.0000000000000
-0.450000 12010106.0000000000000
-0.750000 12010107.0000000000000
-1.050000 12010108.0000000000000
-1.350000 12010109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 1 0 12010100
+1 0 0 0 0 1 1 1 12010101
+1 0 0 0 0 1 1 2 12010102
+1 0 0 0 0 1 1 3 12010103
+1 0 0 0 0 1 1 4 12010104
+1 0 0 0 0 1 1 5 12010105
+1 0 0 0 0 1 1 6 12010106
+1 0 0 0 0 1 1 7 12010107
+1 0 0 0 0 1 1 8 12010108
+1 0 0 0 0 1 1 9 12010109
+
-"Time = 1.000000
--1.350000 12010100.0000000000000
--1.050000 12010101.0000000000000
--0.750000 12010102.0000000000000
--0.450000 12010103.0000000000000
--0.150000 12010104.0000000000000
-0.150000 12010105.0000000000000
-0.450000 12010106.0000000000000
-0.750000 12010107.0000000000000
-1.050000 12010108.0000000000000
-1.350000 12010109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/vz.xl b/CarpetAttic/Cart3dTest/test/axial/vz.xl
index 8bebff818..e8ea18918 100644
--- a/CarpetAttic/Cart3dTest/test/axial/vz.xl
+++ b/CarpetAttic/Cart3dTest/test/axial/vz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz x (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 13000105
+0 0 0 0 0 1 1 5 13010105
+0 0 0 0 0 2 1 5 13020105
+0 0 0 0 0 3 1 5 13030105
+0 0 0 0 0 4 1 5 13040105
+0 0 0 0 0 5 1 5 13050105
+0 0 0 0 0 6 1 5 13060105
+0 0 0 0 0 7 1 5 13070105
+0 0 0 0 0 8 1 5 13080105
+0 0 0 0 0 9 1 5 13090105
-"Time = 0.000000
--0.150000 13000104.0000000000000
-0.150000 13010104.0000000000000
-0.450000 13020104.0000000000000
-0.750000 13030104.0000000000000
-1.050000 13040104.0000000000000
-1.350000 13050104.0000000000000
-1.650000 13060104.0000000000000
-1.950000 13070104.0000000000000
-2.250000 13080104.0000000000000
-2.550000 13090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 13010105
+1 0 0 0 0 1 1 5 13010105
+1 0 0 0 0 2 1 5 13020105
+1 0 0 0 0 3 1 5 13030105
+1 0 0 0 0 4 1 5 13040105
+1 0 0 0 0 5 1 5 13050105
+1 0 0 0 0 6 1 5 13060105
+1 0 0 0 0 7 1 5 13070105
+1 0 0 0 0 8 1 5 13080105
+1 0 0 0 0 9 1 5 13090105
+
-"Time = 1.000000
--0.150000 13010104.0000000000000
-0.150000 13010104.0000000000000
-0.450000 13020104.0000000000000
-0.750000 13030104.0000000000000
-1.050000 13040104.0000000000000
-1.350000 13050104.0000000000000
-1.650000 13060104.0000000000000
-1.950000 13070104.0000000000000
-2.250000 13080104.0000000000000
-2.550000 13090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/vz.yl b/CarpetAttic/Cart3dTest/test/axial/vz.yl
index d793701cf..95d96e5d4 100644
--- a/CarpetAttic/Cart3dTest/test/axial/vz.yl
+++ b/CarpetAttic/Cart3dTest/test/axial/vz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz y (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 0 5 13010005
+0 0 0 0 0 1 1 5 13010105
+0 0 0 0 0 1 2 5 13010205
+0 0 0 0 0 1 3 5 13010305
+0 0 0 0 0 1 4 5 13010405
+0 0 0 0 0 1 5 5 13010505
+0 0 0 0 0 1 6 5 13010605
+0 0 0 0 0 1 7 5 13010705
+0 0 0 0 0 1 8 5 13010805
+0 0 0 0 0 1 9 5 13010905
-"Time = 0.000000
--0.150000 13010004.0000000000000
-0.150000 13010104.0000000000000
-0.450000 13010204.0000000000000
-0.750000 13010304.0000000000000
-1.050000 13010404.0000000000000
-1.350000 13010504.0000000000000
-1.650000 13010604.0000000000000
-1.950000 13010704.0000000000000
-2.250000 13010804.0000000000000
-2.550000 13010904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 0 5 13010105
+1 0 0 0 0 1 1 5 13010105
+1 0 0 0 0 1 2 5 13010205
+1 0 0 0 0 1 3 5 13010305
+1 0 0 0 0 1 4 5 13010405
+1 0 0 0 0 1 5 5 13010505
+1 0 0 0 0 1 6 5 13010605
+1 0 0 0 0 1 7 5 13010705
+1 0 0 0 0 1 8 5 13010805
+1 0 0 0 0 1 9 5 13010905
+
-"Time = 1.000000
--0.150000 13010104.0000000000000
-0.150000 13010104.0000000000000
-0.450000 13010204.0000000000000
-0.750000 13010304.0000000000000
-1.050000 13010404.0000000000000
-1.350000 13010504.0000000000000
-1.650000 13010604.0000000000000
-1.950000 13010704.0000000000000
-2.250000 13010804.0000000000000
-2.550000 13010904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/axial/vz.zl b/CarpetAttic/Cart3dTest/test/axial/vz.zl
index 3b4ec465f..ece3004cb 100644
--- a/CarpetAttic/Cart3dTest/test/axial/vz.zl
+++ b/CarpetAttic/Cart3dTest/test/axial/vz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz z (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 1 1 0 13010100
+0 0 0 0 0 1 1 1 13010101
+0 0 0 0 0 1 1 2 13010102
+0 0 0 0 0 1 1 3 13010103
+0 0 0 0 0 1 1 4 13010104
+0 0 0 0 0 1 1 5 13010105
+0 0 0 0 0 1 1 6 13010106
+0 0 0 0 0 1 1 7 13010107
+0 0 0 0 0 1 1 8 13010108
+0 0 0 0 0 1 1 9 13010109
-"Time = 0.000000
--1.350000 13010100.0000000000000
--1.050000 13010101.0000000000000
--0.750000 13010102.0000000000000
--0.450000 13010103.0000000000000
--0.150000 13010104.0000000000000
-0.150000 13010105.0000000000000
-0.450000 13010106.0000000000000
-0.750000 13010107.0000000000000
-1.050000 13010108.0000000000000
-1.350000 13010109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 1 1 0 13010100
+1 0 0 0 0 1 1 1 13010101
+1 0 0 0 0 1 1 2 13010102
+1 0 0 0 0 1 1 3 13010103
+1 0 0 0 0 1 1 4 13010104
+1 0 0 0 0 1 1 5 13010105
+1 0 0 0 0 1 1 6 13010106
+1 0 0 0 0 1 1 7 13010107
+1 0 0 0 0 1 1 8 13010108
+1 0 0 0 0 1 1 9 13010109
+
-"Time = 1.000000
--1.350000 13010100.0000000000000
--1.050000 13010101.0000000000000
--0.750000 13010102.0000000000000
--0.450000 13010103.0000000000000
--0.150000 13010104.0000000000000
-0.150000 13010105.0000000000000
-0.450000 13010106.0000000000000
-0.750000 13010107.0000000000000
-1.050000 13010108.0000000000000
-1.350000 13010109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/basic/cart3d_x.xl b/CarpetAttic/Cart3dTest/test/basic/cart3d_x.xl
index 262134984..514360e24 100644
--- a/CarpetAttic/Cart3dTest/test/basic/cart3d_x.xl
+++ b/CarpetAttic/Cart3dTest/test/basic/cart3d_x.xl
@@ -1,13 +1,18 @@
+# GRID::cart3d_x x (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 -0.5
+0 0 0 0 0 1 5 5 -0.388888888888889
+0 0 0 0 0 2 5 5 -0.277777777777778
+0 0 0 0 0 3 5 5 -0.166666666666667
+0 0 0 0 0 4 5 5 -0.0555555555555556
+0 0 0 0 0 5 5 5 0.0555555555555555
+0 0 0 0 0 6 5 5 0.166666666666667
+0 0 0 0 0 7 5 5 0.277777777777778
+0 0 0 0 0 8 5 5 0.388888888888889
+0 0 0 0 0 9 5 5 0.5
+
-"Time = 0.000000
--0.500000 -0.5000000000000
--0.388889 -0.3888888888889
--0.277778 -0.2777777777778
--0.166667 -0.1666666666667
--0.055556 -0.0555555555556
-0.055556 0.0555555555556
-0.166667 0.1666666666667
-0.277778 0.2777777777778
-0.388889 0.3888888888889
-0.500000 0.5000000000000
diff --git a/CarpetAttic/Cart3dTest/test/basic/cart3d_x.yl b/CarpetAttic/Cart3dTest/test/basic/cart3d_x.yl
index c47a5a90f..9878432a6 100644
--- a/CarpetAttic/Cart3dTest/test/basic/cart3d_x.yl
+++ b/CarpetAttic/Cart3dTest/test/basic/cart3d_x.yl
@@ -1,13 +1,18 @@
+# GRID::cart3d_x y (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 0.0555555555555555
+0 0 0 0 0 5 1 5 0.0555555555555555
+0 0 0 0 0 5 2 5 0.0555555555555555
+0 0 0 0 0 5 3 5 0.0555555555555555
+0 0 0 0 0 5 4 5 0.0555555555555555
+0 0 0 0 0 5 5 5 0.0555555555555555
+0 0 0 0 0 5 6 5 0.0555555555555555
+0 0 0 0 0 5 7 5 0.0555555555555555
+0 0 0 0 0 5 8 5 0.0555555555555555
+0 0 0 0 0 5 9 5 0.0555555555555555
+
-"Time = 0.000000
--0.500000 0.0555555555556
--0.388889 0.0555555555556
--0.277778 0.0555555555556
--0.166667 0.0555555555556
--0.055556 0.0555555555556
-0.055556 0.0555555555556
-0.166667 0.0555555555556
-0.277778 0.0555555555556
-0.388889 0.0555555555556
-0.500000 0.0555555555556
diff --git a/CarpetAttic/Cart3dTest/test/basic/cart3d_x.zl b/CarpetAttic/Cart3dTest/test/basic/cart3d_x.zl
index c47a5a90f..a49ec16e5 100644
--- a/CarpetAttic/Cart3dTest/test/basic/cart3d_x.zl
+++ b/CarpetAttic/Cart3dTest/test/basic/cart3d_x.zl
@@ -1,13 +1,18 @@
+# GRID::cart3d_x z (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 0.0555555555555555
+0 0 0 0 0 5 5 1 0.0555555555555555
+0 0 0 0 0 5 5 2 0.0555555555555555
+0 0 0 0 0 5 5 3 0.0555555555555555
+0 0 0 0 0 5 5 4 0.0555555555555555
+0 0 0 0 0 5 5 5 0.0555555555555555
+0 0 0 0 0 5 5 6 0.0555555555555555
+0 0 0 0 0 5 5 7 0.0555555555555555
+0 0 0 0 0 5 5 8 0.0555555555555555
+0 0 0 0 0 5 5 9 0.0555555555555555
+
-"Time = 0.000000
--0.500000 0.0555555555556
--0.388889 0.0555555555556
--0.277778 0.0555555555556
--0.166667 0.0555555555556
--0.055556 0.0555555555556
-0.055556 0.0555555555556
-0.166667 0.0555555555556
-0.277778 0.0555555555556
-0.388889 0.0555555555556
-0.500000 0.0555555555556
diff --git a/CarpetAttic/Cart3dTest/test/basic/cart3d_y.xl b/CarpetAttic/Cart3dTest/test/basic/cart3d_y.xl
index c47a5a90f..305df91b9 100644
--- a/CarpetAttic/Cart3dTest/test/basic/cart3d_y.xl
+++ b/CarpetAttic/Cart3dTest/test/basic/cart3d_y.xl
@@ -1,13 +1,18 @@
+# GRID::cart3d_y x (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 0.0555555555555555
+0 0 0 0 0 1 5 5 0.0555555555555555
+0 0 0 0 0 2 5 5 0.0555555555555555
+0 0 0 0 0 3 5 5 0.0555555555555555
+0 0 0 0 0 4 5 5 0.0555555555555555
+0 0 0 0 0 5 5 5 0.0555555555555555
+0 0 0 0 0 6 5 5 0.0555555555555555
+0 0 0 0 0 7 5 5 0.0555555555555555
+0 0 0 0 0 8 5 5 0.0555555555555555
+0 0 0 0 0 9 5 5 0.0555555555555555
+
-"Time = 0.000000
--0.500000 0.0555555555556
--0.388889 0.0555555555556
--0.277778 0.0555555555556
--0.166667 0.0555555555556
--0.055556 0.0555555555556
-0.055556 0.0555555555556
-0.166667 0.0555555555556
-0.277778 0.0555555555556
-0.388889 0.0555555555556
-0.500000 0.0555555555556
diff --git a/CarpetAttic/Cart3dTest/test/basic/cart3d_y.yl b/CarpetAttic/Cart3dTest/test/basic/cart3d_y.yl
index 262134984..e48707e3e 100644
--- a/CarpetAttic/Cart3dTest/test/basic/cart3d_y.yl
+++ b/CarpetAttic/Cart3dTest/test/basic/cart3d_y.yl
@@ -1,13 +1,18 @@
+# GRID::cart3d_y y (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 -0.5
+0 0 0 0 0 5 1 5 -0.388888888888889
+0 0 0 0 0 5 2 5 -0.277777777777778
+0 0 0 0 0 5 3 5 -0.166666666666667
+0 0 0 0 0 5 4 5 -0.0555555555555556
+0 0 0 0 0 5 5 5 0.0555555555555555
+0 0 0 0 0 5 6 5 0.166666666666667
+0 0 0 0 0 5 7 5 0.277777777777778
+0 0 0 0 0 5 8 5 0.388888888888889
+0 0 0 0 0 5 9 5 0.5
+
-"Time = 0.000000
--0.500000 -0.5000000000000
--0.388889 -0.3888888888889
--0.277778 -0.2777777777778
--0.166667 -0.1666666666667
--0.055556 -0.0555555555556
-0.055556 0.0555555555556
-0.166667 0.1666666666667
-0.277778 0.2777777777778
-0.388889 0.3888888888889
-0.500000 0.5000000000000
diff --git a/CarpetAttic/Cart3dTest/test/basic/cart3d_y.zl b/CarpetAttic/Cart3dTest/test/basic/cart3d_y.zl
index c47a5a90f..87aa406c3 100644
--- a/CarpetAttic/Cart3dTest/test/basic/cart3d_y.zl
+++ b/CarpetAttic/Cart3dTest/test/basic/cart3d_y.zl
@@ -1,13 +1,18 @@
+# GRID::cart3d_y z (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 0.0555555555555555
+0 0 0 0 0 5 5 1 0.0555555555555555
+0 0 0 0 0 5 5 2 0.0555555555555555
+0 0 0 0 0 5 5 3 0.0555555555555555
+0 0 0 0 0 5 5 4 0.0555555555555555
+0 0 0 0 0 5 5 5 0.0555555555555555
+0 0 0 0 0 5 5 6 0.0555555555555555
+0 0 0 0 0 5 5 7 0.0555555555555555
+0 0 0 0 0 5 5 8 0.0555555555555555
+0 0 0 0 0 5 5 9 0.0555555555555555
+
-"Time = 0.000000
--0.500000 0.0555555555556
--0.388889 0.0555555555556
--0.277778 0.0555555555556
--0.166667 0.0555555555556
--0.055556 0.0555555555556
-0.055556 0.0555555555556
-0.166667 0.0555555555556
-0.277778 0.0555555555556
-0.388889 0.0555555555556
-0.500000 0.0555555555556
diff --git a/CarpetAttic/Cart3dTest/test/basic/cart3d_z.xl b/CarpetAttic/Cart3dTest/test/basic/cart3d_z.xl
index c47a5a90f..43f2286a4 100644
--- a/CarpetAttic/Cart3dTest/test/basic/cart3d_z.xl
+++ b/CarpetAttic/Cart3dTest/test/basic/cart3d_z.xl
@@ -1,13 +1,18 @@
+# GRID::cart3d_z x (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 0.0555555555555555
+0 0 0 0 0 1 5 5 0.0555555555555555
+0 0 0 0 0 2 5 5 0.0555555555555555
+0 0 0 0 0 3 5 5 0.0555555555555555
+0 0 0 0 0 4 5 5 0.0555555555555555
+0 0 0 0 0 5 5 5 0.0555555555555555
+0 0 0 0 0 6 5 5 0.0555555555555555
+0 0 0 0 0 7 5 5 0.0555555555555555
+0 0 0 0 0 8 5 5 0.0555555555555555
+0 0 0 0 0 9 5 5 0.0555555555555555
+
-"Time = 0.000000
--0.500000 0.0555555555556
--0.388889 0.0555555555556
--0.277778 0.0555555555556
--0.166667 0.0555555555556
--0.055556 0.0555555555556
-0.055556 0.0555555555556
-0.166667 0.0555555555556
-0.277778 0.0555555555556
-0.388889 0.0555555555556
-0.500000 0.0555555555556
diff --git a/CarpetAttic/Cart3dTest/test/basic/cart3d_z.yl b/CarpetAttic/Cart3dTest/test/basic/cart3d_z.yl
index c47a5a90f..98832f13a 100644
--- a/CarpetAttic/Cart3dTest/test/basic/cart3d_z.yl
+++ b/CarpetAttic/Cart3dTest/test/basic/cart3d_z.yl
@@ -1,13 +1,18 @@
+# GRID::cart3d_z y (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 0.0555555555555555
+0 0 0 0 0 5 1 5 0.0555555555555555
+0 0 0 0 0 5 2 5 0.0555555555555555
+0 0 0 0 0 5 3 5 0.0555555555555555
+0 0 0 0 0 5 4 5 0.0555555555555555
+0 0 0 0 0 5 5 5 0.0555555555555555
+0 0 0 0 0 5 6 5 0.0555555555555555
+0 0 0 0 0 5 7 5 0.0555555555555555
+0 0 0 0 0 5 8 5 0.0555555555555555
+0 0 0 0 0 5 9 5 0.0555555555555555
+
-"Time = 0.000000
--0.500000 0.0555555555556
--0.388889 0.0555555555556
--0.277778 0.0555555555556
--0.166667 0.0555555555556
--0.055556 0.0555555555556
-0.055556 0.0555555555556
-0.166667 0.0555555555556
-0.277778 0.0555555555556
-0.388889 0.0555555555556
-0.500000 0.0555555555556
diff --git a/CarpetAttic/Cart3dTest/test/basic/cart3d_z.zl b/CarpetAttic/Cart3dTest/test/basic/cart3d_z.zl
index 262134984..d5eb90a96 100644
--- a/CarpetAttic/Cart3dTest/test/basic/cart3d_z.zl
+++ b/CarpetAttic/Cart3dTest/test/basic/cart3d_z.zl
@@ -1,13 +1,18 @@
+# GRID::cart3d_z z (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 -0.5
+0 0 0 0 0 5 5 1 -0.388888888888889
+0 0 0 0 0 5 5 2 -0.277777777777778
+0 0 0 0 0 5 5 3 -0.166666666666667
+0 0 0 0 0 5 5 4 -0.0555555555555556
+0 0 0 0 0 5 5 5 0.0555555555555555
+0 0 0 0 0 5 5 6 0.166666666666667
+0 0 0 0 0 5 5 7 0.277777777777778
+0 0 0 0 0 5 5 8 0.388888888888889
+0 0 0 0 0 5 5 9 0.5
+
-"Time = 0.000000
--0.500000 -0.5000000000000
--0.388889 -0.3888888888889
--0.277778 -0.2777777777778
--0.166667 -0.1666666666667
--0.055556 -0.0555555555556
-0.055556 0.0555555555556
-0.166667 0.1666666666667
-0.277778 0.2777777777778
-0.388889 0.3888888888889
-0.500000 0.5000000000000
diff --git a/CarpetAttic/Cart3dTest/test/basic/spher3d_r.xl b/CarpetAttic/Cart3dTest/test/basic/spher3d_r.xl
index a508c3897..deb988a58 100644
--- a/CarpetAttic/Cart3dTest/test/basic/spher3d_r.xl
+++ b/CarpetAttic/Cart3dTest/test/basic/spher3d_r.xl
@@ -1,13 +1,18 @@
+# GRID::spher3d_r x (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 0.50613519884135
+0 0 0 0 0 1 5 5 0.396746023807936
+0 0 0 0 0 2 5 5 0.288675134594813
+0 0 0 0 0 3 5 5 0.184256932797522
+0 0 0 0 0 4 5 5 0.0962250448649376
+0 0 0 0 0 5 5 5 0.0962250448649376
+0 0 0 0 0 6 5 5 0.184256932797522
+0 0 0 0 0 7 5 5 0.288675134594813
+0 0 0 0 0 8 5 5 0.396746023807936
+0 0 0 0 0 9 5 5 0.50613519884135
+
-"Time = 0.000000
--0.500000 0.5061351988413
--0.388889 0.3967460238079
--0.277778 0.2886751345948
--0.166667 0.1842569327975
--0.055556 0.0962250448649
-0.055556 0.0962250448649
-0.166667 0.1842569327975
-0.277778 0.2886751345948
-0.388889 0.3967460238079
-0.500000 0.5061351988413
diff --git a/CarpetAttic/Cart3dTest/test/basic/spher3d_r.yl b/CarpetAttic/Cart3dTest/test/basic/spher3d_r.yl
index a508c3897..d6c525c9b 100644
--- a/CarpetAttic/Cart3dTest/test/basic/spher3d_r.yl
+++ b/CarpetAttic/Cart3dTest/test/basic/spher3d_r.yl
@@ -1,13 +1,18 @@
+# GRID::spher3d_r y (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 0.50613519884135
+0 0 0 0 0 5 1 5 0.396746023807936
+0 0 0 0 0 5 2 5 0.288675134594813
+0 0 0 0 0 5 3 5 0.184256932797522
+0 0 0 0 0 5 4 5 0.0962250448649376
+0 0 0 0 0 5 5 5 0.0962250448649376
+0 0 0 0 0 5 6 5 0.184256932797522
+0 0 0 0 0 5 7 5 0.288675134594813
+0 0 0 0 0 5 8 5 0.396746023807936
+0 0 0 0 0 5 9 5 0.50613519884135
+
-"Time = 0.000000
--0.500000 0.5061351988413
--0.388889 0.3967460238079
--0.277778 0.2886751345948
--0.166667 0.1842569327975
--0.055556 0.0962250448649
-0.055556 0.0962250448649
-0.166667 0.1842569327975
-0.277778 0.2886751345948
-0.388889 0.3967460238079
-0.500000 0.5061351988413
diff --git a/CarpetAttic/Cart3dTest/test/basic/spher3d_r.zl b/CarpetAttic/Cart3dTest/test/basic/spher3d_r.zl
index a508c3897..8f6440db6 100644
--- a/CarpetAttic/Cart3dTest/test/basic/spher3d_r.zl
+++ b/CarpetAttic/Cart3dTest/test/basic/spher3d_r.zl
@@ -1,13 +1,18 @@
+# GRID::spher3d_r z (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 0.50613519884135
+0 0 0 0 0 5 5 1 0.396746023807936
+0 0 0 0 0 5 5 2 0.288675134594813
+0 0 0 0 0 5 5 3 0.184256932797522
+0 0 0 0 0 5 5 4 0.0962250448649376
+0 0 0 0 0 5 5 5 0.0962250448649376
+0 0 0 0 0 5 5 6 0.184256932797522
+0 0 0 0 0 5 5 7 0.288675134594813
+0 0 0 0 0 5 5 8 0.396746023807936
+0 0 0 0 0 5 5 9 0.50613519884135
+
-"Time = 0.000000
--0.500000 0.5061351988413
--0.388889 0.3967460238079
--0.277778 0.2886751345948
--0.166667 0.1842569327975
--0.055556 0.0962250448649
-0.055556 0.0962250448649
-0.166667 0.1842569327975
-0.277778 0.2886751345948
-0.388889 0.3967460238079
-0.500000 0.5061351988413
diff --git a/CarpetAttic/Cart3dTest/test/bitant/ax.xl b/CarpetAttic/Cart3dTest/test/bitant/ax.xl
index 36ef0a0c7..7e8e323fa 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/ax.xl
+++ b/CarpetAttic/Cart3dTest/test/bitant/ax.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax x (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 31000502
+0 0 0 0 0 1 5 2 31010502
+0 0 0 0 0 2 5 2 31020502
+0 0 0 0 0 3 5 2 31030502
+0 0 0 0 0 4 5 2 31040502
+0 0 0 0 0 5 5 2 31050502
+0 0 0 0 0 6 5 2 31060502
+0 0 0 0 0 7 5 2 31070502
+0 0 0 0 0 8 5 2 31080502
+0 0 0 0 0 9 5 2 31090502
-"Time = 0.000000
--1.350000 31000401.0000000000000
--1.050000 31010401.0000000000000
--0.750000 31020401.0000000000000
--0.450000 31030401.0000000000000
--0.150000 31040401.0000000000000
-0.150000 31050401.0000000000000
-0.450000 31060401.0000000000000
-0.750000 31070401.0000000000000
-1.050000 31080401.0000000000000
-1.350000 31090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 31000502
+1 0 0 0 0 1 5 2 31010502
+1 0 0 0 0 2 5 2 31020502
+1 0 0 0 0 3 5 2 31030502
+1 0 0 0 0 4 5 2 31040502
+1 0 0 0 0 5 5 2 31050502
+1 0 0 0 0 6 5 2 31060502
+1 0 0 0 0 7 5 2 31070502
+1 0 0 0 0 8 5 2 31080502
+1 0 0 0 0 9 5 2 31090502
+
-"Time = 1.000000
--1.350000 -31000402.0000000000000
--1.050000 -31010402.0000000000000
--0.750000 -31020402.0000000000000
--0.450000 -31030402.0000000000000
--0.150000 -31040402.0000000000000
-0.150000 -31050402.0000000000000
-0.450000 -31060402.0000000000000
-0.750000 -31070402.0000000000000
-1.050000 -31080402.0000000000000
-1.350000 -31090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/ax.yl b/CarpetAttic/Cart3dTest/test/bitant/ax.yl
index b00e8c4fe..afff82d2d 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/ax.yl
+++ b/CarpetAttic/Cart3dTest/test/bitant/ax.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax y (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 31050002
+0 0 0 0 0 5 1 2 31050102
+0 0 0 0 0 5 2 2 31050202
+0 0 0 0 0 5 3 2 31050302
+0 0 0 0 0 5 4 2 31050402
+0 0 0 0 0 5 5 2 31050502
+0 0 0 0 0 5 6 2 31050602
+0 0 0 0 0 5 7 2 31050702
+0 0 0 0 0 5 8 2 31050802
+0 0 0 0 0 5 9 2 31050902
-"Time = 0.000000
--1.350000 31040001.0000000000000
--1.050000 31040101.0000000000000
--0.750000 31040201.0000000000000
--0.450000 31040301.0000000000000
--0.150000 31040401.0000000000000
-0.150000 31040501.0000000000000
-0.450000 31040601.0000000000000
-0.750000 31040701.0000000000000
-1.050000 31040801.0000000000000
-1.350000 31040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 31050002
+1 0 0 0 0 5 1 2 31050102
+1 0 0 0 0 5 2 2 31050202
+1 0 0 0 0 5 3 2 31050302
+1 0 0 0 0 5 4 2 31050402
+1 0 0 0 0 5 5 2 31050502
+1 0 0 0 0 5 6 2 31050602
+1 0 0 0 0 5 7 2 31050702
+1 0 0 0 0 5 8 2 31050802
+1 0 0 0 0 5 9 2 31050902
+
-"Time = 1.000000
--1.350000 -31040002.0000000000000
--1.050000 -31040102.0000000000000
--0.750000 -31040202.0000000000000
--0.450000 -31040302.0000000000000
--0.150000 -31040402.0000000000000
-0.150000 -31040502.0000000000000
-0.450000 -31040602.0000000000000
-0.750000 -31040702.0000000000000
-1.050000 -31040802.0000000000000
-1.350000 -31040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/ax.zl b/CarpetAttic/Cart3dTest/test/bitant/ax.zl
index 1b329fa76..a07bdd678 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/ax.zl
+++ b/CarpetAttic/Cart3dTest/test/bitant/ax.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax z (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 31050500
+0 0 0 0 0 5 5 1 31050501
+0 0 0 0 0 5 5 2 31050502
+0 0 0 0 0 5 5 3 31050503
+0 0 0 0 0 5 5 4 31050504
+0 0 0 0 0 5 5 5 31050505
+0 0 0 0 0 5 5 6 31050506
+0 0 0 0 0 5 5 7 31050507
+0 0 0 0 0 5 5 8 31050508
+0 0 0 0 0 5 5 9 31050509
-"Time = 0.000000
--0.450000 31040400.0000000000000
--0.150000 31040401.0000000000000
-0.150000 31040402.0000000000000
-0.450000 31040403.0000000000000
-0.750000 31040404.0000000000000
-1.050000 31040405.0000000000000
-1.350000 31040406.0000000000000
-1.650000 31040407.0000000000000
-1.950000 31040408.0000000000000
-2.250000 31040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 -31050503
+1 0 0 0 0 5 5 1 -31050502
+1 0 0 0 0 5 5 2 31050502
+1 0 0 0 0 5 5 3 31050503
+1 0 0 0 0 5 5 4 31050504
+1 0 0 0 0 5 5 5 31050505
+1 0 0 0 0 5 5 6 31050506
+1 0 0 0 0 5 5 7 31050507
+1 0 0 0 0 5 5 8 31050508
+1 0 0 0 0 5 5 9 31050509
+
-"Time = 1.000000
--0.450000 -31040403.0000000000000
--0.150000 -31040402.0000000000000
-0.150000 31040402.0000000000000
-0.450000 31040403.0000000000000
-0.750000 31040404.0000000000000
-1.050000 31040405.0000000000000
-1.350000 31040406.0000000000000
-1.650000 31040407.0000000000000
-1.950000 31040408.0000000000000
-2.250000 31040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/ay.xl b/CarpetAttic/Cart3dTest/test/bitant/ay.xl
index 2e3b0bce0..d5d30f098 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/ay.xl
+++ b/CarpetAttic/Cart3dTest/test/bitant/ay.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay x (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 32000502
+0 0 0 0 0 1 5 2 32010502
+0 0 0 0 0 2 5 2 32020502
+0 0 0 0 0 3 5 2 32030502
+0 0 0 0 0 4 5 2 32040502
+0 0 0 0 0 5 5 2 32050502
+0 0 0 0 0 6 5 2 32060502
+0 0 0 0 0 7 5 2 32070502
+0 0 0 0 0 8 5 2 32080502
+0 0 0 0 0 9 5 2 32090502
-"Time = 0.000000
--1.350000 32000401.0000000000000
--1.050000 32010401.0000000000000
--0.750000 32020401.0000000000000
--0.450000 32030401.0000000000000
--0.150000 32040401.0000000000000
-0.150000 32050401.0000000000000
-0.450000 32060401.0000000000000
-0.750000 32070401.0000000000000
-1.050000 32080401.0000000000000
-1.350000 32090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 32000502
+1 0 0 0 0 1 5 2 32010502
+1 0 0 0 0 2 5 2 32020502
+1 0 0 0 0 3 5 2 32030502
+1 0 0 0 0 4 5 2 32040502
+1 0 0 0 0 5 5 2 32050502
+1 0 0 0 0 6 5 2 32060502
+1 0 0 0 0 7 5 2 32070502
+1 0 0 0 0 8 5 2 32080502
+1 0 0 0 0 9 5 2 32090502
+
-"Time = 1.000000
--1.350000 -32000402.0000000000000
--1.050000 -32010402.0000000000000
--0.750000 -32020402.0000000000000
--0.450000 -32030402.0000000000000
--0.150000 -32040402.0000000000000
-0.150000 -32050402.0000000000000
-0.450000 -32060402.0000000000000
-0.750000 -32070402.0000000000000
-1.050000 -32080402.0000000000000
-1.350000 -32090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/ay.yl b/CarpetAttic/Cart3dTest/test/bitant/ay.yl
index 6a0aea322..b615a8d33 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/ay.yl
+++ b/CarpetAttic/Cart3dTest/test/bitant/ay.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay y (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 32050002
+0 0 0 0 0 5 1 2 32050102
+0 0 0 0 0 5 2 2 32050202
+0 0 0 0 0 5 3 2 32050302
+0 0 0 0 0 5 4 2 32050402
+0 0 0 0 0 5 5 2 32050502
+0 0 0 0 0 5 6 2 32050602
+0 0 0 0 0 5 7 2 32050702
+0 0 0 0 0 5 8 2 32050802
+0 0 0 0 0 5 9 2 32050902
-"Time = 0.000000
--1.350000 32040001.0000000000000
--1.050000 32040101.0000000000000
--0.750000 32040201.0000000000000
--0.450000 32040301.0000000000000
--0.150000 32040401.0000000000000
-0.150000 32040501.0000000000000
-0.450000 32040601.0000000000000
-0.750000 32040701.0000000000000
-1.050000 32040801.0000000000000
-1.350000 32040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 32050002
+1 0 0 0 0 5 1 2 32050102
+1 0 0 0 0 5 2 2 32050202
+1 0 0 0 0 5 3 2 32050302
+1 0 0 0 0 5 4 2 32050402
+1 0 0 0 0 5 5 2 32050502
+1 0 0 0 0 5 6 2 32050602
+1 0 0 0 0 5 7 2 32050702
+1 0 0 0 0 5 8 2 32050802
+1 0 0 0 0 5 9 2 32050902
+
-"Time = 1.000000
--1.350000 -32040002.0000000000000
--1.050000 -32040102.0000000000000
--0.750000 -32040202.0000000000000
--0.450000 -32040302.0000000000000
--0.150000 -32040402.0000000000000
-0.150000 -32040502.0000000000000
-0.450000 -32040602.0000000000000
-0.750000 -32040702.0000000000000
-1.050000 -32040802.0000000000000
-1.350000 -32040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/ay.zl b/CarpetAttic/Cart3dTest/test/bitant/ay.zl
index 75d684da1..806872ae0 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/ay.zl
+++ b/CarpetAttic/Cart3dTest/test/bitant/ay.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay z (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 32050500
+0 0 0 0 0 5 5 1 32050501
+0 0 0 0 0 5 5 2 32050502
+0 0 0 0 0 5 5 3 32050503
+0 0 0 0 0 5 5 4 32050504
+0 0 0 0 0 5 5 5 32050505
+0 0 0 0 0 5 5 6 32050506
+0 0 0 0 0 5 5 7 32050507
+0 0 0 0 0 5 5 8 32050508
+0 0 0 0 0 5 5 9 32050509
-"Time = 0.000000
--0.450000 32040400.0000000000000
--0.150000 32040401.0000000000000
-0.150000 32040402.0000000000000
-0.450000 32040403.0000000000000
-0.750000 32040404.0000000000000
-1.050000 32040405.0000000000000
-1.350000 32040406.0000000000000
-1.650000 32040407.0000000000000
-1.950000 32040408.0000000000000
-2.250000 32040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 -32050503
+1 0 0 0 0 5 5 1 -32050502
+1 0 0 0 0 5 5 2 32050502
+1 0 0 0 0 5 5 3 32050503
+1 0 0 0 0 5 5 4 32050504
+1 0 0 0 0 5 5 5 32050505
+1 0 0 0 0 5 5 6 32050506
+1 0 0 0 0 5 5 7 32050507
+1 0 0 0 0 5 5 8 32050508
+1 0 0 0 0 5 5 9 32050509
+
-"Time = 1.000000
--0.450000 -32040403.0000000000000
--0.150000 -32040402.0000000000000
-0.150000 32040402.0000000000000
-0.450000 32040403.0000000000000
-0.750000 32040404.0000000000000
-1.050000 32040405.0000000000000
-1.350000 32040406.0000000000000
-1.650000 32040407.0000000000000
-1.950000 32040408.0000000000000
-2.250000 32040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/az.xl b/CarpetAttic/Cart3dTest/test/bitant/az.xl
index e56714660..2801cce26 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/az.xl
+++ b/CarpetAttic/Cart3dTest/test/bitant/az.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::az x (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 33000502
+0 0 0 0 0 1 5 2 33010502
+0 0 0 0 0 2 5 2 33020502
+0 0 0 0 0 3 5 2 33030502
+0 0 0 0 0 4 5 2 33040502
+0 0 0 0 0 5 5 2 33050502
+0 0 0 0 0 6 5 2 33060502
+0 0 0 0 0 7 5 2 33070502
+0 0 0 0 0 8 5 2 33080502
+0 0 0 0 0 9 5 2 33090502
-"Time = 0.000000
--1.350000 33000401.0000000000000
--1.050000 33010401.0000000000000
--0.750000 33020401.0000000000000
--0.450000 33030401.0000000000000
--0.150000 33040401.0000000000000
-0.150000 33050401.0000000000000
-0.450000 33060401.0000000000000
-0.750000 33070401.0000000000000
-1.050000 33080401.0000000000000
-1.350000 33090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 33000502
+1 0 0 0 0 1 5 2 33010502
+1 0 0 0 0 2 5 2 33020502
+1 0 0 0 0 3 5 2 33030502
+1 0 0 0 0 4 5 2 33040502
+1 0 0 0 0 5 5 2 33050502
+1 0 0 0 0 6 5 2 33060502
+1 0 0 0 0 7 5 2 33070502
+1 0 0 0 0 8 5 2 33080502
+1 0 0 0 0 9 5 2 33090502
+
-"Time = 1.000000
--1.350000 33000402.0000000000000
--1.050000 33010402.0000000000000
--0.750000 33020402.0000000000000
--0.450000 33030402.0000000000000
--0.150000 33040402.0000000000000
-0.150000 33050402.0000000000000
-0.450000 33060402.0000000000000
-0.750000 33070402.0000000000000
-1.050000 33080402.0000000000000
-1.350000 33090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/az.yl b/CarpetAttic/Cart3dTest/test/bitant/az.yl
index 86cc7b69e..8a4a69164 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/az.yl
+++ b/CarpetAttic/Cart3dTest/test/bitant/az.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::az y (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 33050002
+0 0 0 0 0 5 1 2 33050102
+0 0 0 0 0 5 2 2 33050202
+0 0 0 0 0 5 3 2 33050302
+0 0 0 0 0 5 4 2 33050402
+0 0 0 0 0 5 5 2 33050502
+0 0 0 0 0 5 6 2 33050602
+0 0 0 0 0 5 7 2 33050702
+0 0 0 0 0 5 8 2 33050802
+0 0 0 0 0 5 9 2 33050902
-"Time = 0.000000
--1.350000 33040001.0000000000000
--1.050000 33040101.0000000000000
--0.750000 33040201.0000000000000
--0.450000 33040301.0000000000000
--0.150000 33040401.0000000000000
-0.150000 33040501.0000000000000
-0.450000 33040601.0000000000000
-0.750000 33040701.0000000000000
-1.050000 33040801.0000000000000
-1.350000 33040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 33050002
+1 0 0 0 0 5 1 2 33050102
+1 0 0 0 0 5 2 2 33050202
+1 0 0 0 0 5 3 2 33050302
+1 0 0 0 0 5 4 2 33050402
+1 0 0 0 0 5 5 2 33050502
+1 0 0 0 0 5 6 2 33050602
+1 0 0 0 0 5 7 2 33050702
+1 0 0 0 0 5 8 2 33050802
+1 0 0 0 0 5 9 2 33050902
+
-"Time = 1.000000
--1.350000 33040002.0000000000000
--1.050000 33040102.0000000000000
--0.750000 33040202.0000000000000
--0.450000 33040302.0000000000000
--0.150000 33040402.0000000000000
-0.150000 33040502.0000000000000
-0.450000 33040602.0000000000000
-0.750000 33040702.0000000000000
-1.050000 33040802.0000000000000
-1.350000 33040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/az.zl b/CarpetAttic/Cart3dTest/test/bitant/az.zl
index 4cec17c45..cc4797e0a 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/az.zl
+++ b/CarpetAttic/Cart3dTest/test/bitant/az.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::az z (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 33050500
+0 0 0 0 0 5 5 1 33050501
+0 0 0 0 0 5 5 2 33050502
+0 0 0 0 0 5 5 3 33050503
+0 0 0 0 0 5 5 4 33050504
+0 0 0 0 0 5 5 5 33050505
+0 0 0 0 0 5 5 6 33050506
+0 0 0 0 0 5 5 7 33050507
+0 0 0 0 0 5 5 8 33050508
+0 0 0 0 0 5 5 9 33050509
-"Time = 0.000000
--0.450000 33040400.0000000000000
--0.150000 33040401.0000000000000
-0.150000 33040402.0000000000000
-0.450000 33040403.0000000000000
-0.750000 33040404.0000000000000
-1.050000 33040405.0000000000000
-1.350000 33040406.0000000000000
-1.650000 33040407.0000000000000
-1.950000 33040408.0000000000000
-2.250000 33040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 33050503
+1 0 0 0 0 5 5 1 33050502
+1 0 0 0 0 5 5 2 33050502
+1 0 0 0 0 5 5 3 33050503
+1 0 0 0 0 5 5 4 33050504
+1 0 0 0 0 5 5 5 33050505
+1 0 0 0 0 5 5 6 33050506
+1 0 0 0 0 5 5 7 33050507
+1 0 0 0 0 5 5 8 33050508
+1 0 0 0 0 5 5 9 33050509
+
-"Time = 1.000000
--0.450000 33040403.0000000000000
--0.150000 33040402.0000000000000
-0.150000 33040402.0000000000000
-0.450000 33040403.0000000000000
-0.750000 33040404.0000000000000
-1.050000 33040405.0000000000000
-1.350000 33040406.0000000000000
-1.650000 33040407.0000000000000
-1.950000 33040408.0000000000000
-2.250000 33040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/cart3d_x.xl b/CarpetAttic/Cart3dTest/test/bitant/cart3d_x.xl
index 33b36d0af..af3d5317e 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/cart3d_x.xl
+++ b/CarpetAttic/Cart3dTest/test/bitant/cart3d_x.xl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x x (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 -1.35
+0 0 0 0 0 1 5 2 -1.05
+0 0 0 0 0 2 5 2 -0.75
+0 0 0 0 0 3 5 2 -0.45
+0 0 0 0 0 4 5 2 -0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 6 5 2 0.45
+0 0 0 0 0 7 5 2 0.75
+0 0 0 0 0 8 5 2 1.05
+0 0 0 0 0 9 5 2 1.35
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 -1.35
+1 0 0 0 0 1 5 2 -1.05
+1 0 0 0 0 2 5 2 -0.75
+1 0 0 0 0 3 5 2 -0.45
+1 0 0 0 0 4 5 2 -0.15
+1 0 0 0 0 5 5 2 0.15
+1 0 0 0 0 6 5 2 0.45
+1 0 0 0 0 7 5 2 0.75
+1 0 0 0 0 8 5 2 1.05
+1 0 0 0 0 9 5 2 1.35
+
-"Time = 1.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/cart3d_x.yl b/CarpetAttic/Cart3dTest/test/bitant/cart3d_x.yl
index 52b13d0ae..ffac552e2 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/cart3d_x.yl
+++ b/CarpetAttic/Cart3dTest/test/bitant/cart3d_x.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x y (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 0.15
+0 0 0 0 0 5 1 2 0.15
+0 0 0 0 0 5 2 2 0.15
+0 0 0 0 0 5 3 2 0.15
+0 0 0 0 0 5 4 2 0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 5 6 2 0.15
+0 0 0 0 0 5 7 2 0.15
+0 0 0 0 0 5 8 2 0.15
+0 0 0 0 0 5 9 2 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 0.15
+1 0 0 0 0 5 1 2 0.15
+1 0 0 0 0 5 2 2 0.15
+1 0 0 0 0 5 3 2 0.15
+1 0 0 0 0 5 4 2 0.15
+1 0 0 0 0 5 5 2 0.15
+1 0 0 0 0 5 6 2 0.15
+1 0 0 0 0 5 7 2 0.15
+1 0 0 0 0 5 8 2 0.15
+1 0 0 0 0 5 9 2 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/cart3d_x.zl b/CarpetAttic/Cart3dTest/test/bitant/cart3d_x.zl
index e908f2032..1f894853b 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/cart3d_x.zl
+++ b/CarpetAttic/Cart3dTest/test/bitant/cart3d_x.zl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x z (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 0.15
+0 0 0 0 0 5 5 1 0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 5 5 3 0.15
+0 0 0 0 0 5 5 4 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 5 6 0.15
+0 0 0 0 0 5 5 7 0.15
+0 0 0 0 0 5 5 8 0.15
+0 0 0 0 0 5 5 9 0.15
-"Time = 0.000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 0.15
+1 0 0 0 0 5 5 1 0.15
+1 0 0 0 0 5 5 2 0.15
+1 0 0 0 0 5 5 3 0.15
+1 0 0 0 0 5 5 4 0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 5 5 6 0.15
+1 0 0 0 0 5 5 7 0.15
+1 0 0 0 0 5 5 8 0.15
+1 0 0 0 0 5 5 9 0.15
+
-"Time = 1.000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/cart3d_y.xl b/CarpetAttic/Cart3dTest/test/bitant/cart3d_y.xl
index 52b13d0ae..025be7f91 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/cart3d_y.xl
+++ b/CarpetAttic/Cart3dTest/test/bitant/cart3d_y.xl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y x (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 0.15
+0 0 0 0 0 1 5 2 0.15
+0 0 0 0 0 2 5 2 0.15
+0 0 0 0 0 3 5 2 0.15
+0 0 0 0 0 4 5 2 0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 6 5 2 0.15
+0 0 0 0 0 7 5 2 0.15
+0 0 0 0 0 8 5 2 0.15
+0 0 0 0 0 9 5 2 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 0.15
+1 0 0 0 0 1 5 2 0.15
+1 0 0 0 0 2 5 2 0.15
+1 0 0 0 0 3 5 2 0.15
+1 0 0 0 0 4 5 2 0.15
+1 0 0 0 0 5 5 2 0.15
+1 0 0 0 0 6 5 2 0.15
+1 0 0 0 0 7 5 2 0.15
+1 0 0 0 0 8 5 2 0.15
+1 0 0 0 0 9 5 2 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/cart3d_y.yl b/CarpetAttic/Cart3dTest/test/bitant/cart3d_y.yl
index 33b36d0af..34e77908f 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/cart3d_y.yl
+++ b/CarpetAttic/Cart3dTest/test/bitant/cart3d_y.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y y (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 -1.35
+0 0 0 0 0 5 1 2 -1.05
+0 0 0 0 0 5 2 2 -0.75
+0 0 0 0 0 5 3 2 -0.45
+0 0 0 0 0 5 4 2 -0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 5 6 2 0.45
+0 0 0 0 0 5 7 2 0.75
+0 0 0 0 0 5 8 2 1.05
+0 0 0 0 0 5 9 2 1.35
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 -1.35
+1 0 0 0 0 5 1 2 -1.05
+1 0 0 0 0 5 2 2 -0.75
+1 0 0 0 0 5 3 2 -0.45
+1 0 0 0 0 5 4 2 -0.15
+1 0 0 0 0 5 5 2 0.15
+1 0 0 0 0 5 6 2 0.45
+1 0 0 0 0 5 7 2 0.75
+1 0 0 0 0 5 8 2 1.05
+1 0 0 0 0 5 9 2 1.35
+
-"Time = 1.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/cart3d_y.zl b/CarpetAttic/Cart3dTest/test/bitant/cart3d_y.zl
index e908f2032..f32f3acb9 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/cart3d_y.zl
+++ b/CarpetAttic/Cart3dTest/test/bitant/cart3d_y.zl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y z (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 0.15
+0 0 0 0 0 5 5 1 0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 5 5 3 0.15
+0 0 0 0 0 5 5 4 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 5 6 0.15
+0 0 0 0 0 5 5 7 0.15
+0 0 0 0 0 5 5 8 0.15
+0 0 0 0 0 5 5 9 0.15
-"Time = 0.000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 0.15
+1 0 0 0 0 5 5 1 0.15
+1 0 0 0 0 5 5 2 0.15
+1 0 0 0 0 5 5 3 0.15
+1 0 0 0 0 5 5 4 0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 5 5 6 0.15
+1 0 0 0 0 5 5 7 0.15
+1 0 0 0 0 5 5 8 0.15
+1 0 0 0 0 5 5 9 0.15
+
-"Time = 1.000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/cart3d_z.xl b/CarpetAttic/Cart3dTest/test/bitant/cart3d_z.xl
index 52b13d0ae..8c4b8799d 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/cart3d_z.xl
+++ b/CarpetAttic/Cart3dTest/test/bitant/cart3d_z.xl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z x (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 0.15
+0 0 0 0 0 1 5 2 0.15
+0 0 0 0 0 2 5 2 0.15
+0 0 0 0 0 3 5 2 0.15
+0 0 0 0 0 4 5 2 0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 6 5 2 0.15
+0 0 0 0 0 7 5 2 0.15
+0 0 0 0 0 8 5 2 0.15
+0 0 0 0 0 9 5 2 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 0.15
+1 0 0 0 0 1 5 2 0.15
+1 0 0 0 0 2 5 2 0.15
+1 0 0 0 0 3 5 2 0.15
+1 0 0 0 0 4 5 2 0.15
+1 0 0 0 0 5 5 2 0.15
+1 0 0 0 0 6 5 2 0.15
+1 0 0 0 0 7 5 2 0.15
+1 0 0 0 0 8 5 2 0.15
+1 0 0 0 0 9 5 2 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/cart3d_z.yl b/CarpetAttic/Cart3dTest/test/bitant/cart3d_z.yl
index 52b13d0ae..16379780b 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/cart3d_z.yl
+++ b/CarpetAttic/Cart3dTest/test/bitant/cart3d_z.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z y (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 0.15
+0 0 0 0 0 5 1 2 0.15
+0 0 0 0 0 5 2 2 0.15
+0 0 0 0 0 5 3 2 0.15
+0 0 0 0 0 5 4 2 0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 5 6 2 0.15
+0 0 0 0 0 5 7 2 0.15
+0 0 0 0 0 5 8 2 0.15
+0 0 0 0 0 5 9 2 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 0.15
+1 0 0 0 0 5 1 2 0.15
+1 0 0 0 0 5 2 2 0.15
+1 0 0 0 0 5 3 2 0.15
+1 0 0 0 0 5 4 2 0.15
+1 0 0 0 0 5 5 2 0.15
+1 0 0 0 0 5 6 2 0.15
+1 0 0 0 0 5 7 2 0.15
+1 0 0 0 0 5 8 2 0.15
+1 0 0 0 0 5 9 2 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/cart3d_z.zl b/CarpetAttic/Cart3dTest/test/bitant/cart3d_z.zl
index 20ba9f007..782306204 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/cart3d_z.zl
+++ b/CarpetAttic/Cart3dTest/test/bitant/cart3d_z.zl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z z (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 -0.45
+0 0 0 0 0 5 5 1 -0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 5 5 3 0.45
+0 0 0 0 0 5 5 4 0.75
+0 0 0 0 0 5 5 5 1.05
+0 0 0 0 0 5 5 6 1.35
+0 0 0 0 0 5 5 7 1.65
+0 0 0 0 0 5 5 8 1.95
+0 0 0 0 0 5 5 9 2.25
-"Time = 0.000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 -0.45
+1 0 0 0 0 5 5 1 -0.15
+1 0 0 0 0 5 5 2 0.15
+1 0 0 0 0 5 5 3 0.45
+1 0 0 0 0 5 5 4 0.75
+1 0 0 0 0 5 5 5 1.05
+1 0 0 0 0 5 5 6 1.35
+1 0 0 0 0 5 5 7 1.65
+1 0 0 0 0 5 5 8 1.95
+1 0 0 0 0 5 5 9 2.25
+
-"Time = 1.000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/fxx.xl b/CarpetAttic/Cart3dTest/test/bitant/fxx.xl
index 8bb143c5b..95f2f58d9 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/fxx.xl
+++ b/CarpetAttic/Cart3dTest/test/bitant/fxx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx x (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 41000502
+0 0 0 0 0 1 5 2 41010502
+0 0 0 0 0 2 5 2 41020502
+0 0 0 0 0 3 5 2 41030502
+0 0 0 0 0 4 5 2 41040502
+0 0 0 0 0 5 5 2 41050502
+0 0 0 0 0 6 5 2 41060502
+0 0 0 0 0 7 5 2 41070502
+0 0 0 0 0 8 5 2 41080502
+0 0 0 0 0 9 5 2 41090502
-"Time = 0.000000
--1.350000 41000401.0000000000000
--1.050000 41010401.0000000000000
--0.750000 41020401.0000000000000
--0.450000 41030401.0000000000000
--0.150000 41040401.0000000000000
-0.150000 41050401.0000000000000
-0.450000 41060401.0000000000000
-0.750000 41070401.0000000000000
-1.050000 41080401.0000000000000
-1.350000 41090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 41000502
+1 0 0 0 0 1 5 2 41010502
+1 0 0 0 0 2 5 2 41020502
+1 0 0 0 0 3 5 2 41030502
+1 0 0 0 0 4 5 2 41040502
+1 0 0 0 0 5 5 2 41050502
+1 0 0 0 0 6 5 2 41060502
+1 0 0 0 0 7 5 2 41070502
+1 0 0 0 0 8 5 2 41080502
+1 0 0 0 0 9 5 2 41090502
+
-"Time = 1.000000
--1.350000 41000402.0000000000000
--1.050000 41010402.0000000000000
--0.750000 41020402.0000000000000
--0.450000 41030402.0000000000000
--0.150000 41040402.0000000000000
-0.150000 41050402.0000000000000
-0.450000 41060402.0000000000000
-0.750000 41070402.0000000000000
-1.050000 41080402.0000000000000
-1.350000 41090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/fxx.yl b/CarpetAttic/Cart3dTest/test/bitant/fxx.yl
index 6319e704c..45b9dc040 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/fxx.yl
+++ b/CarpetAttic/Cart3dTest/test/bitant/fxx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx y (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 41050002
+0 0 0 0 0 5 1 2 41050102
+0 0 0 0 0 5 2 2 41050202
+0 0 0 0 0 5 3 2 41050302
+0 0 0 0 0 5 4 2 41050402
+0 0 0 0 0 5 5 2 41050502
+0 0 0 0 0 5 6 2 41050602
+0 0 0 0 0 5 7 2 41050702
+0 0 0 0 0 5 8 2 41050802
+0 0 0 0 0 5 9 2 41050902
-"Time = 0.000000
--1.350000 41040001.0000000000000
--1.050000 41040101.0000000000000
--0.750000 41040201.0000000000000
--0.450000 41040301.0000000000000
--0.150000 41040401.0000000000000
-0.150000 41040501.0000000000000
-0.450000 41040601.0000000000000
-0.750000 41040701.0000000000000
-1.050000 41040801.0000000000000
-1.350000 41040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 41050002
+1 0 0 0 0 5 1 2 41050102
+1 0 0 0 0 5 2 2 41050202
+1 0 0 0 0 5 3 2 41050302
+1 0 0 0 0 5 4 2 41050402
+1 0 0 0 0 5 5 2 41050502
+1 0 0 0 0 5 6 2 41050602
+1 0 0 0 0 5 7 2 41050702
+1 0 0 0 0 5 8 2 41050802
+1 0 0 0 0 5 9 2 41050902
+
-"Time = 1.000000
--1.350000 41040002.0000000000000
--1.050000 41040102.0000000000000
--0.750000 41040202.0000000000000
--0.450000 41040302.0000000000000
--0.150000 41040402.0000000000000
-0.150000 41040502.0000000000000
-0.450000 41040602.0000000000000
-0.750000 41040702.0000000000000
-1.050000 41040802.0000000000000
-1.350000 41040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/fxx.zl b/CarpetAttic/Cart3dTest/test/bitant/fxx.zl
index d9b3ca546..7cf334992 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/fxx.zl
+++ b/CarpetAttic/Cart3dTest/test/bitant/fxx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx z (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 41050500
+0 0 0 0 0 5 5 1 41050501
+0 0 0 0 0 5 5 2 41050502
+0 0 0 0 0 5 5 3 41050503
+0 0 0 0 0 5 5 4 41050504
+0 0 0 0 0 5 5 5 41050505
+0 0 0 0 0 5 5 6 41050506
+0 0 0 0 0 5 5 7 41050507
+0 0 0 0 0 5 5 8 41050508
+0 0 0 0 0 5 5 9 41050509
-"Time = 0.000000
--0.450000 41040400.0000000000000
--0.150000 41040401.0000000000000
-0.150000 41040402.0000000000000
-0.450000 41040403.0000000000000
-0.750000 41040404.0000000000000
-1.050000 41040405.0000000000000
-1.350000 41040406.0000000000000
-1.650000 41040407.0000000000000
-1.950000 41040408.0000000000000
-2.250000 41040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 41050503
+1 0 0 0 0 5 5 1 41050502
+1 0 0 0 0 5 5 2 41050502
+1 0 0 0 0 5 5 3 41050503
+1 0 0 0 0 5 5 4 41050504
+1 0 0 0 0 5 5 5 41050505
+1 0 0 0 0 5 5 6 41050506
+1 0 0 0 0 5 5 7 41050507
+1 0 0 0 0 5 5 8 41050508
+1 0 0 0 0 5 5 9 41050509
+
-"Time = 1.000000
--0.450000 41040403.0000000000000
--0.150000 41040402.0000000000000
-0.150000 41040402.0000000000000
-0.450000 41040403.0000000000000
-0.750000 41040404.0000000000000
-1.050000 41040405.0000000000000
-1.350000 41040406.0000000000000
-1.650000 41040407.0000000000000
-1.950000 41040408.0000000000000
-2.250000 41040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/fxy.xl b/CarpetAttic/Cart3dTest/test/bitant/fxy.xl
index b2fdafaef..698d922be 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/fxy.xl
+++ b/CarpetAttic/Cart3dTest/test/bitant/fxy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy x (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 42000502
+0 0 0 0 0 1 5 2 42010502
+0 0 0 0 0 2 5 2 42020502
+0 0 0 0 0 3 5 2 42030502
+0 0 0 0 0 4 5 2 42040502
+0 0 0 0 0 5 5 2 42050502
+0 0 0 0 0 6 5 2 42060502
+0 0 0 0 0 7 5 2 42070502
+0 0 0 0 0 8 5 2 42080502
+0 0 0 0 0 9 5 2 42090502
-"Time = 0.000000
--1.350000 42000401.0000000000000
--1.050000 42010401.0000000000000
--0.750000 42020401.0000000000000
--0.450000 42030401.0000000000000
--0.150000 42040401.0000000000000
-0.150000 42050401.0000000000000
-0.450000 42060401.0000000000000
-0.750000 42070401.0000000000000
-1.050000 42080401.0000000000000
-1.350000 42090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 42000502
+1 0 0 0 0 1 5 2 42010502
+1 0 0 0 0 2 5 2 42020502
+1 0 0 0 0 3 5 2 42030502
+1 0 0 0 0 4 5 2 42040502
+1 0 0 0 0 5 5 2 42050502
+1 0 0 0 0 6 5 2 42060502
+1 0 0 0 0 7 5 2 42070502
+1 0 0 0 0 8 5 2 42080502
+1 0 0 0 0 9 5 2 42090502
+
-"Time = 1.000000
--1.350000 42000402.0000000000000
--1.050000 42010402.0000000000000
--0.750000 42020402.0000000000000
--0.450000 42030402.0000000000000
--0.150000 42040402.0000000000000
-0.150000 42050402.0000000000000
-0.450000 42060402.0000000000000
-0.750000 42070402.0000000000000
-1.050000 42080402.0000000000000
-1.350000 42090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/fxy.yl b/CarpetAttic/Cart3dTest/test/bitant/fxy.yl
index 9057ecb22..57400f89a 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/fxy.yl
+++ b/CarpetAttic/Cart3dTest/test/bitant/fxy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy y (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 42050002
+0 0 0 0 0 5 1 2 42050102
+0 0 0 0 0 5 2 2 42050202
+0 0 0 0 0 5 3 2 42050302
+0 0 0 0 0 5 4 2 42050402
+0 0 0 0 0 5 5 2 42050502
+0 0 0 0 0 5 6 2 42050602
+0 0 0 0 0 5 7 2 42050702
+0 0 0 0 0 5 8 2 42050802
+0 0 0 0 0 5 9 2 42050902
-"Time = 0.000000
--1.350000 42040001.0000000000000
--1.050000 42040101.0000000000000
--0.750000 42040201.0000000000000
--0.450000 42040301.0000000000000
--0.150000 42040401.0000000000000
-0.150000 42040501.0000000000000
-0.450000 42040601.0000000000000
-0.750000 42040701.0000000000000
-1.050000 42040801.0000000000000
-1.350000 42040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 42050002
+1 0 0 0 0 5 1 2 42050102
+1 0 0 0 0 5 2 2 42050202
+1 0 0 0 0 5 3 2 42050302
+1 0 0 0 0 5 4 2 42050402
+1 0 0 0 0 5 5 2 42050502
+1 0 0 0 0 5 6 2 42050602
+1 0 0 0 0 5 7 2 42050702
+1 0 0 0 0 5 8 2 42050802
+1 0 0 0 0 5 9 2 42050902
+
-"Time = 1.000000
--1.350000 42040002.0000000000000
--1.050000 42040102.0000000000000
--0.750000 42040202.0000000000000
--0.450000 42040302.0000000000000
--0.150000 42040402.0000000000000
-0.150000 42040502.0000000000000
-0.450000 42040602.0000000000000
-0.750000 42040702.0000000000000
-1.050000 42040802.0000000000000
-1.350000 42040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/fxy.zl b/CarpetAttic/Cart3dTest/test/bitant/fxy.zl
index 7cd2a4613..73e972b88 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/fxy.zl
+++ b/CarpetAttic/Cart3dTest/test/bitant/fxy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy z (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 42050500
+0 0 0 0 0 5 5 1 42050501
+0 0 0 0 0 5 5 2 42050502
+0 0 0 0 0 5 5 3 42050503
+0 0 0 0 0 5 5 4 42050504
+0 0 0 0 0 5 5 5 42050505
+0 0 0 0 0 5 5 6 42050506
+0 0 0 0 0 5 5 7 42050507
+0 0 0 0 0 5 5 8 42050508
+0 0 0 0 0 5 5 9 42050509
-"Time = 0.000000
--0.450000 42040400.0000000000000
--0.150000 42040401.0000000000000
-0.150000 42040402.0000000000000
-0.450000 42040403.0000000000000
-0.750000 42040404.0000000000000
-1.050000 42040405.0000000000000
-1.350000 42040406.0000000000000
-1.650000 42040407.0000000000000
-1.950000 42040408.0000000000000
-2.250000 42040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 42050503
+1 0 0 0 0 5 5 1 42050502
+1 0 0 0 0 5 5 2 42050502
+1 0 0 0 0 5 5 3 42050503
+1 0 0 0 0 5 5 4 42050504
+1 0 0 0 0 5 5 5 42050505
+1 0 0 0 0 5 5 6 42050506
+1 0 0 0 0 5 5 7 42050507
+1 0 0 0 0 5 5 8 42050508
+1 0 0 0 0 5 5 9 42050509
+
-"Time = 1.000000
--0.450000 42040403.0000000000000
--0.150000 42040402.0000000000000
-0.150000 42040402.0000000000000
-0.450000 42040403.0000000000000
-0.750000 42040404.0000000000000
-1.050000 42040405.0000000000000
-1.350000 42040406.0000000000000
-1.650000 42040407.0000000000000
-1.950000 42040408.0000000000000
-2.250000 42040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/fxz.xl b/CarpetAttic/Cart3dTest/test/bitant/fxz.xl
index 7661e740d..eb671b85f 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/fxz.xl
+++ b/CarpetAttic/Cart3dTest/test/bitant/fxz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz x (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 43000502
+0 0 0 0 0 1 5 2 43010502
+0 0 0 0 0 2 5 2 43020502
+0 0 0 0 0 3 5 2 43030502
+0 0 0 0 0 4 5 2 43040502
+0 0 0 0 0 5 5 2 43050502
+0 0 0 0 0 6 5 2 43060502
+0 0 0 0 0 7 5 2 43070502
+0 0 0 0 0 8 5 2 43080502
+0 0 0 0 0 9 5 2 43090502
-"Time = 0.000000
--1.350000 43000401.0000000000000
--1.050000 43010401.0000000000000
--0.750000 43020401.0000000000000
--0.450000 43030401.0000000000000
--0.150000 43040401.0000000000000
-0.150000 43050401.0000000000000
-0.450000 43060401.0000000000000
-0.750000 43070401.0000000000000
-1.050000 43080401.0000000000000
-1.350000 43090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 43000502
+1 0 0 0 0 1 5 2 43010502
+1 0 0 0 0 2 5 2 43020502
+1 0 0 0 0 3 5 2 43030502
+1 0 0 0 0 4 5 2 43040502
+1 0 0 0 0 5 5 2 43050502
+1 0 0 0 0 6 5 2 43060502
+1 0 0 0 0 7 5 2 43070502
+1 0 0 0 0 8 5 2 43080502
+1 0 0 0 0 9 5 2 43090502
+
-"Time = 1.000000
--1.350000 -43000402.0000000000000
--1.050000 -43010402.0000000000000
--0.750000 -43020402.0000000000000
--0.450000 -43030402.0000000000000
--0.150000 -43040402.0000000000000
-0.150000 -43050402.0000000000000
-0.450000 -43060402.0000000000000
-0.750000 -43070402.0000000000000
-1.050000 -43080402.0000000000000
-1.350000 -43090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/fxz.yl b/CarpetAttic/Cart3dTest/test/bitant/fxz.yl
index 580d551a4..76fe56c05 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/fxz.yl
+++ b/CarpetAttic/Cart3dTest/test/bitant/fxz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz y (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 43050002
+0 0 0 0 0 5 1 2 43050102
+0 0 0 0 0 5 2 2 43050202
+0 0 0 0 0 5 3 2 43050302
+0 0 0 0 0 5 4 2 43050402
+0 0 0 0 0 5 5 2 43050502
+0 0 0 0 0 5 6 2 43050602
+0 0 0 0 0 5 7 2 43050702
+0 0 0 0 0 5 8 2 43050802
+0 0 0 0 0 5 9 2 43050902
-"Time = 0.000000
--1.350000 43040001.0000000000000
--1.050000 43040101.0000000000000
--0.750000 43040201.0000000000000
--0.450000 43040301.0000000000000
--0.150000 43040401.0000000000000
-0.150000 43040501.0000000000000
-0.450000 43040601.0000000000000
-0.750000 43040701.0000000000000
-1.050000 43040801.0000000000000
-1.350000 43040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 43050002
+1 0 0 0 0 5 1 2 43050102
+1 0 0 0 0 5 2 2 43050202
+1 0 0 0 0 5 3 2 43050302
+1 0 0 0 0 5 4 2 43050402
+1 0 0 0 0 5 5 2 43050502
+1 0 0 0 0 5 6 2 43050602
+1 0 0 0 0 5 7 2 43050702
+1 0 0 0 0 5 8 2 43050802
+1 0 0 0 0 5 9 2 43050902
+
-"Time = 1.000000
--1.350000 -43040002.0000000000000
--1.050000 -43040102.0000000000000
--0.750000 -43040202.0000000000000
--0.450000 -43040302.0000000000000
--0.150000 -43040402.0000000000000
-0.150000 -43040502.0000000000000
-0.450000 -43040602.0000000000000
-0.750000 -43040702.0000000000000
-1.050000 -43040802.0000000000000
-1.350000 -43040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/fxz.zl b/CarpetAttic/Cart3dTest/test/bitant/fxz.zl
index a7d1ea895..35900ef4e 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/fxz.zl
+++ b/CarpetAttic/Cart3dTest/test/bitant/fxz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz z (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 43050500
+0 0 0 0 0 5 5 1 43050501
+0 0 0 0 0 5 5 2 43050502
+0 0 0 0 0 5 5 3 43050503
+0 0 0 0 0 5 5 4 43050504
+0 0 0 0 0 5 5 5 43050505
+0 0 0 0 0 5 5 6 43050506
+0 0 0 0 0 5 5 7 43050507
+0 0 0 0 0 5 5 8 43050508
+0 0 0 0 0 5 5 9 43050509
-"Time = 0.000000
--0.450000 43040400.0000000000000
--0.150000 43040401.0000000000000
-0.150000 43040402.0000000000000
-0.450000 43040403.0000000000000
-0.750000 43040404.0000000000000
-1.050000 43040405.0000000000000
-1.350000 43040406.0000000000000
-1.650000 43040407.0000000000000
-1.950000 43040408.0000000000000
-2.250000 43040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 -43050503
+1 0 0 0 0 5 5 1 -43050502
+1 0 0 0 0 5 5 2 43050502
+1 0 0 0 0 5 5 3 43050503
+1 0 0 0 0 5 5 4 43050504
+1 0 0 0 0 5 5 5 43050505
+1 0 0 0 0 5 5 6 43050506
+1 0 0 0 0 5 5 7 43050507
+1 0 0 0 0 5 5 8 43050508
+1 0 0 0 0 5 5 9 43050509
+
-"Time = 1.000000
--0.450000 -43040403.0000000000000
--0.150000 -43040402.0000000000000
-0.150000 43040402.0000000000000
-0.450000 43040403.0000000000000
-0.750000 43040404.0000000000000
-1.050000 43040405.0000000000000
-1.350000 43040406.0000000000000
-1.650000 43040407.0000000000000
-1.950000 43040408.0000000000000
-2.250000 43040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/fyx.xl b/CarpetAttic/Cart3dTest/test/bitant/fyx.xl
index 2e3a07210..caa8164cc 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/fyx.xl
+++ b/CarpetAttic/Cart3dTest/test/bitant/fyx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx x (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 44000502
+0 0 0 0 0 1 5 2 44010502
+0 0 0 0 0 2 5 2 44020502
+0 0 0 0 0 3 5 2 44030502
+0 0 0 0 0 4 5 2 44040502
+0 0 0 0 0 5 5 2 44050502
+0 0 0 0 0 6 5 2 44060502
+0 0 0 0 0 7 5 2 44070502
+0 0 0 0 0 8 5 2 44080502
+0 0 0 0 0 9 5 2 44090502
-"Time = 0.000000
--1.350000 44000401.0000000000000
--1.050000 44010401.0000000000000
--0.750000 44020401.0000000000000
--0.450000 44030401.0000000000000
--0.150000 44040401.0000000000000
-0.150000 44050401.0000000000000
-0.450000 44060401.0000000000000
-0.750000 44070401.0000000000000
-1.050000 44080401.0000000000000
-1.350000 44090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 44000502
+1 0 0 0 0 1 5 2 44010502
+1 0 0 0 0 2 5 2 44020502
+1 0 0 0 0 3 5 2 44030502
+1 0 0 0 0 4 5 2 44040502
+1 0 0 0 0 5 5 2 44050502
+1 0 0 0 0 6 5 2 44060502
+1 0 0 0 0 7 5 2 44070502
+1 0 0 0 0 8 5 2 44080502
+1 0 0 0 0 9 5 2 44090502
+
-"Time = 1.000000
--1.350000 44000402.0000000000000
--1.050000 44010402.0000000000000
--0.750000 44020402.0000000000000
--0.450000 44030402.0000000000000
--0.150000 44040402.0000000000000
-0.150000 44050402.0000000000000
-0.450000 44060402.0000000000000
-0.750000 44070402.0000000000000
-1.050000 44080402.0000000000000
-1.350000 44090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/fyx.yl b/CarpetAttic/Cart3dTest/test/bitant/fyx.yl
index 682104849..2e7f66e3d 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/fyx.yl
+++ b/CarpetAttic/Cart3dTest/test/bitant/fyx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx y (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 44050002
+0 0 0 0 0 5 1 2 44050102
+0 0 0 0 0 5 2 2 44050202
+0 0 0 0 0 5 3 2 44050302
+0 0 0 0 0 5 4 2 44050402
+0 0 0 0 0 5 5 2 44050502
+0 0 0 0 0 5 6 2 44050602
+0 0 0 0 0 5 7 2 44050702
+0 0 0 0 0 5 8 2 44050802
+0 0 0 0 0 5 9 2 44050902
-"Time = 0.000000
--1.350000 44040001.0000000000000
--1.050000 44040101.0000000000000
--0.750000 44040201.0000000000000
--0.450000 44040301.0000000000000
--0.150000 44040401.0000000000000
-0.150000 44040501.0000000000000
-0.450000 44040601.0000000000000
-0.750000 44040701.0000000000000
-1.050000 44040801.0000000000000
-1.350000 44040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 44050002
+1 0 0 0 0 5 1 2 44050102
+1 0 0 0 0 5 2 2 44050202
+1 0 0 0 0 5 3 2 44050302
+1 0 0 0 0 5 4 2 44050402
+1 0 0 0 0 5 5 2 44050502
+1 0 0 0 0 5 6 2 44050602
+1 0 0 0 0 5 7 2 44050702
+1 0 0 0 0 5 8 2 44050802
+1 0 0 0 0 5 9 2 44050902
+
-"Time = 1.000000
--1.350000 44040002.0000000000000
--1.050000 44040102.0000000000000
--0.750000 44040202.0000000000000
--0.450000 44040302.0000000000000
--0.150000 44040402.0000000000000
-0.150000 44040502.0000000000000
-0.450000 44040602.0000000000000
-0.750000 44040702.0000000000000
-1.050000 44040802.0000000000000
-1.350000 44040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/fyx.zl b/CarpetAttic/Cart3dTest/test/bitant/fyx.zl
index 1c46e3da5..db9cd5c51 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/fyx.zl
+++ b/CarpetAttic/Cart3dTest/test/bitant/fyx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx z (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 44050500
+0 0 0 0 0 5 5 1 44050501
+0 0 0 0 0 5 5 2 44050502
+0 0 0 0 0 5 5 3 44050503
+0 0 0 0 0 5 5 4 44050504
+0 0 0 0 0 5 5 5 44050505
+0 0 0 0 0 5 5 6 44050506
+0 0 0 0 0 5 5 7 44050507
+0 0 0 0 0 5 5 8 44050508
+0 0 0 0 0 5 5 9 44050509
-"Time = 0.000000
--0.450000 44040400.0000000000000
--0.150000 44040401.0000000000000
-0.150000 44040402.0000000000000
-0.450000 44040403.0000000000000
-0.750000 44040404.0000000000000
-1.050000 44040405.0000000000000
-1.350000 44040406.0000000000000
-1.650000 44040407.0000000000000
-1.950000 44040408.0000000000000
-2.250000 44040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 44050503
+1 0 0 0 0 5 5 1 44050502
+1 0 0 0 0 5 5 2 44050502
+1 0 0 0 0 5 5 3 44050503
+1 0 0 0 0 5 5 4 44050504
+1 0 0 0 0 5 5 5 44050505
+1 0 0 0 0 5 5 6 44050506
+1 0 0 0 0 5 5 7 44050507
+1 0 0 0 0 5 5 8 44050508
+1 0 0 0 0 5 5 9 44050509
+
-"Time = 1.000000
--0.450000 44040403.0000000000000
--0.150000 44040402.0000000000000
-0.150000 44040402.0000000000000
-0.450000 44040403.0000000000000
-0.750000 44040404.0000000000000
-1.050000 44040405.0000000000000
-1.350000 44040406.0000000000000
-1.650000 44040407.0000000000000
-1.950000 44040408.0000000000000
-2.250000 44040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/fyy.xl b/CarpetAttic/Cart3dTest/test/bitant/fyy.xl
index c4994f831..d268589ad 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/fyy.xl
+++ b/CarpetAttic/Cart3dTest/test/bitant/fyy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy x (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 45000502
+0 0 0 0 0 1 5 2 45010502
+0 0 0 0 0 2 5 2 45020502
+0 0 0 0 0 3 5 2 45030502
+0 0 0 0 0 4 5 2 45040502
+0 0 0 0 0 5 5 2 45050502
+0 0 0 0 0 6 5 2 45060502
+0 0 0 0 0 7 5 2 45070502
+0 0 0 0 0 8 5 2 45080502
+0 0 0 0 0 9 5 2 45090502
-"Time = 0.000000
--1.350000 45000401.0000000000000
--1.050000 45010401.0000000000000
--0.750000 45020401.0000000000000
--0.450000 45030401.0000000000000
--0.150000 45040401.0000000000000
-0.150000 45050401.0000000000000
-0.450000 45060401.0000000000000
-0.750000 45070401.0000000000000
-1.050000 45080401.0000000000000
-1.350000 45090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 45000502
+1 0 0 0 0 1 5 2 45010502
+1 0 0 0 0 2 5 2 45020502
+1 0 0 0 0 3 5 2 45030502
+1 0 0 0 0 4 5 2 45040502
+1 0 0 0 0 5 5 2 45050502
+1 0 0 0 0 6 5 2 45060502
+1 0 0 0 0 7 5 2 45070502
+1 0 0 0 0 8 5 2 45080502
+1 0 0 0 0 9 5 2 45090502
+
-"Time = 1.000000
--1.350000 45000402.0000000000000
--1.050000 45010402.0000000000000
--0.750000 45020402.0000000000000
--0.450000 45030402.0000000000000
--0.150000 45040402.0000000000000
-0.150000 45050402.0000000000000
-0.450000 45060402.0000000000000
-0.750000 45070402.0000000000000
-1.050000 45080402.0000000000000
-1.350000 45090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/fyy.yl b/CarpetAttic/Cart3dTest/test/bitant/fyy.yl
index c613bf23b..f4c8638bd 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/fyy.yl
+++ b/CarpetAttic/Cart3dTest/test/bitant/fyy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy y (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 45050002
+0 0 0 0 0 5 1 2 45050102
+0 0 0 0 0 5 2 2 45050202
+0 0 0 0 0 5 3 2 45050302
+0 0 0 0 0 5 4 2 45050402
+0 0 0 0 0 5 5 2 45050502
+0 0 0 0 0 5 6 2 45050602
+0 0 0 0 0 5 7 2 45050702
+0 0 0 0 0 5 8 2 45050802
+0 0 0 0 0 5 9 2 45050902
-"Time = 0.000000
--1.350000 45040001.0000000000000
--1.050000 45040101.0000000000000
--0.750000 45040201.0000000000000
--0.450000 45040301.0000000000000
--0.150000 45040401.0000000000000
-0.150000 45040501.0000000000000
-0.450000 45040601.0000000000000
-0.750000 45040701.0000000000000
-1.050000 45040801.0000000000000
-1.350000 45040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 45050002
+1 0 0 0 0 5 1 2 45050102
+1 0 0 0 0 5 2 2 45050202
+1 0 0 0 0 5 3 2 45050302
+1 0 0 0 0 5 4 2 45050402
+1 0 0 0 0 5 5 2 45050502
+1 0 0 0 0 5 6 2 45050602
+1 0 0 0 0 5 7 2 45050702
+1 0 0 0 0 5 8 2 45050802
+1 0 0 0 0 5 9 2 45050902
+
-"Time = 1.000000
--1.350000 45040002.0000000000000
--1.050000 45040102.0000000000000
--0.750000 45040202.0000000000000
--0.450000 45040302.0000000000000
--0.150000 45040402.0000000000000
-0.150000 45040502.0000000000000
-0.450000 45040602.0000000000000
-0.750000 45040702.0000000000000
-1.050000 45040802.0000000000000
-1.350000 45040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/fyy.zl b/CarpetAttic/Cart3dTest/test/bitant/fyy.zl
index 51beb5ba8..6810ad5c4 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/fyy.zl
+++ b/CarpetAttic/Cart3dTest/test/bitant/fyy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy z (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 45050500
+0 0 0 0 0 5 5 1 45050501
+0 0 0 0 0 5 5 2 45050502
+0 0 0 0 0 5 5 3 45050503
+0 0 0 0 0 5 5 4 45050504
+0 0 0 0 0 5 5 5 45050505
+0 0 0 0 0 5 5 6 45050506
+0 0 0 0 0 5 5 7 45050507
+0 0 0 0 0 5 5 8 45050508
+0 0 0 0 0 5 5 9 45050509
-"Time = 0.000000
--0.450000 45040400.0000000000000
--0.150000 45040401.0000000000000
-0.150000 45040402.0000000000000
-0.450000 45040403.0000000000000
-0.750000 45040404.0000000000000
-1.050000 45040405.0000000000000
-1.350000 45040406.0000000000000
-1.650000 45040407.0000000000000
-1.950000 45040408.0000000000000
-2.250000 45040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 45050503
+1 0 0 0 0 5 5 1 45050502
+1 0 0 0 0 5 5 2 45050502
+1 0 0 0 0 5 5 3 45050503
+1 0 0 0 0 5 5 4 45050504
+1 0 0 0 0 5 5 5 45050505
+1 0 0 0 0 5 5 6 45050506
+1 0 0 0 0 5 5 7 45050507
+1 0 0 0 0 5 5 8 45050508
+1 0 0 0 0 5 5 9 45050509
+
-"Time = 1.000000
--0.450000 45040403.0000000000000
--0.150000 45040402.0000000000000
-0.150000 45040402.0000000000000
-0.450000 45040403.0000000000000
-0.750000 45040404.0000000000000
-1.050000 45040405.0000000000000
-1.350000 45040406.0000000000000
-1.650000 45040407.0000000000000
-1.950000 45040408.0000000000000
-2.250000 45040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/fyz.xl b/CarpetAttic/Cart3dTest/test/bitant/fyz.xl
index 1dae820ac..d9da37975 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/fyz.xl
+++ b/CarpetAttic/Cart3dTest/test/bitant/fyz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz x (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 46000502
+0 0 0 0 0 1 5 2 46010502
+0 0 0 0 0 2 5 2 46020502
+0 0 0 0 0 3 5 2 46030502
+0 0 0 0 0 4 5 2 46040502
+0 0 0 0 0 5 5 2 46050502
+0 0 0 0 0 6 5 2 46060502
+0 0 0 0 0 7 5 2 46070502
+0 0 0 0 0 8 5 2 46080502
+0 0 0 0 0 9 5 2 46090502
-"Time = 0.000000
--1.350000 46000401.0000000000000
--1.050000 46010401.0000000000000
--0.750000 46020401.0000000000000
--0.450000 46030401.0000000000000
--0.150000 46040401.0000000000000
-0.150000 46050401.0000000000000
-0.450000 46060401.0000000000000
-0.750000 46070401.0000000000000
-1.050000 46080401.0000000000000
-1.350000 46090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 46000502
+1 0 0 0 0 1 5 2 46010502
+1 0 0 0 0 2 5 2 46020502
+1 0 0 0 0 3 5 2 46030502
+1 0 0 0 0 4 5 2 46040502
+1 0 0 0 0 5 5 2 46050502
+1 0 0 0 0 6 5 2 46060502
+1 0 0 0 0 7 5 2 46070502
+1 0 0 0 0 8 5 2 46080502
+1 0 0 0 0 9 5 2 46090502
+
-"Time = 1.000000
--1.350000 -46000402.0000000000000
--1.050000 -46010402.0000000000000
--0.750000 -46020402.0000000000000
--0.450000 -46030402.0000000000000
--0.150000 -46040402.0000000000000
-0.150000 -46050402.0000000000000
-0.450000 -46060402.0000000000000
-0.750000 -46070402.0000000000000
-1.050000 -46080402.0000000000000
-1.350000 -46090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/fyz.yl b/CarpetAttic/Cart3dTest/test/bitant/fyz.yl
index 7558e5612..439d46104 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/fyz.yl
+++ b/CarpetAttic/Cart3dTest/test/bitant/fyz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz y (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 46050002
+0 0 0 0 0 5 1 2 46050102
+0 0 0 0 0 5 2 2 46050202
+0 0 0 0 0 5 3 2 46050302
+0 0 0 0 0 5 4 2 46050402
+0 0 0 0 0 5 5 2 46050502
+0 0 0 0 0 5 6 2 46050602
+0 0 0 0 0 5 7 2 46050702
+0 0 0 0 0 5 8 2 46050802
+0 0 0 0 0 5 9 2 46050902
-"Time = 0.000000
--1.350000 46040001.0000000000000
--1.050000 46040101.0000000000000
--0.750000 46040201.0000000000000
--0.450000 46040301.0000000000000
--0.150000 46040401.0000000000000
-0.150000 46040501.0000000000000
-0.450000 46040601.0000000000000
-0.750000 46040701.0000000000000
-1.050000 46040801.0000000000000
-1.350000 46040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 46050002
+1 0 0 0 0 5 1 2 46050102
+1 0 0 0 0 5 2 2 46050202
+1 0 0 0 0 5 3 2 46050302
+1 0 0 0 0 5 4 2 46050402
+1 0 0 0 0 5 5 2 46050502
+1 0 0 0 0 5 6 2 46050602
+1 0 0 0 0 5 7 2 46050702
+1 0 0 0 0 5 8 2 46050802
+1 0 0 0 0 5 9 2 46050902
+
-"Time = 1.000000
--1.350000 -46040002.0000000000000
--1.050000 -46040102.0000000000000
--0.750000 -46040202.0000000000000
--0.450000 -46040302.0000000000000
--0.150000 -46040402.0000000000000
-0.150000 -46040502.0000000000000
-0.450000 -46040602.0000000000000
-0.750000 -46040702.0000000000000
-1.050000 -46040802.0000000000000
-1.350000 -46040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/fyz.zl b/CarpetAttic/Cart3dTest/test/bitant/fyz.zl
index 3854348e7..88664545b 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/fyz.zl
+++ b/CarpetAttic/Cart3dTest/test/bitant/fyz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz z (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 46050500
+0 0 0 0 0 5 5 1 46050501
+0 0 0 0 0 5 5 2 46050502
+0 0 0 0 0 5 5 3 46050503
+0 0 0 0 0 5 5 4 46050504
+0 0 0 0 0 5 5 5 46050505
+0 0 0 0 0 5 5 6 46050506
+0 0 0 0 0 5 5 7 46050507
+0 0 0 0 0 5 5 8 46050508
+0 0 0 0 0 5 5 9 46050509
-"Time = 0.000000
--0.450000 46040400.0000000000000
--0.150000 46040401.0000000000000
-0.150000 46040402.0000000000000
-0.450000 46040403.0000000000000
-0.750000 46040404.0000000000000
-1.050000 46040405.0000000000000
-1.350000 46040406.0000000000000
-1.650000 46040407.0000000000000
-1.950000 46040408.0000000000000
-2.250000 46040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 -46050503
+1 0 0 0 0 5 5 1 -46050502
+1 0 0 0 0 5 5 2 46050502
+1 0 0 0 0 5 5 3 46050503
+1 0 0 0 0 5 5 4 46050504
+1 0 0 0 0 5 5 5 46050505
+1 0 0 0 0 5 5 6 46050506
+1 0 0 0 0 5 5 7 46050507
+1 0 0 0 0 5 5 8 46050508
+1 0 0 0 0 5 5 9 46050509
+
-"Time = 1.000000
--0.450000 -46040403.0000000000000
--0.150000 -46040402.0000000000000
-0.150000 46040402.0000000000000
-0.450000 46040403.0000000000000
-0.750000 46040404.0000000000000
-1.050000 46040405.0000000000000
-1.350000 46040406.0000000000000
-1.650000 46040407.0000000000000
-1.950000 46040408.0000000000000
-2.250000 46040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/fzx.xl b/CarpetAttic/Cart3dTest/test/bitant/fzx.xl
index 14e2ccac7..166ce0b93 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/fzx.xl
+++ b/CarpetAttic/Cart3dTest/test/bitant/fzx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx x (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 47000502
+0 0 0 0 0 1 5 2 47010502
+0 0 0 0 0 2 5 2 47020502
+0 0 0 0 0 3 5 2 47030502
+0 0 0 0 0 4 5 2 47040502
+0 0 0 0 0 5 5 2 47050502
+0 0 0 0 0 6 5 2 47060502
+0 0 0 0 0 7 5 2 47070502
+0 0 0 0 0 8 5 2 47080502
+0 0 0 0 0 9 5 2 47090502
-"Time = 0.000000
--1.350000 47000401.0000000000000
--1.050000 47010401.0000000000000
--0.750000 47020401.0000000000000
--0.450000 47030401.0000000000000
--0.150000 47040401.0000000000000
-0.150000 47050401.0000000000000
-0.450000 47060401.0000000000000
-0.750000 47070401.0000000000000
-1.050000 47080401.0000000000000
-1.350000 47090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 47000502
+1 0 0 0 0 1 5 2 47010502
+1 0 0 0 0 2 5 2 47020502
+1 0 0 0 0 3 5 2 47030502
+1 0 0 0 0 4 5 2 47040502
+1 0 0 0 0 5 5 2 47050502
+1 0 0 0 0 6 5 2 47060502
+1 0 0 0 0 7 5 2 47070502
+1 0 0 0 0 8 5 2 47080502
+1 0 0 0 0 9 5 2 47090502
+
-"Time = 1.000000
--1.350000 -47000402.0000000000000
--1.050000 -47010402.0000000000000
--0.750000 -47020402.0000000000000
--0.450000 -47030402.0000000000000
--0.150000 -47040402.0000000000000
-0.150000 -47050402.0000000000000
-0.450000 -47060402.0000000000000
-0.750000 -47070402.0000000000000
-1.050000 -47080402.0000000000000
-1.350000 -47090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/fzx.yl b/CarpetAttic/Cart3dTest/test/bitant/fzx.yl
index 5033d26b9..d5bd56675 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/fzx.yl
+++ b/CarpetAttic/Cart3dTest/test/bitant/fzx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx y (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 47050002
+0 0 0 0 0 5 1 2 47050102
+0 0 0 0 0 5 2 2 47050202
+0 0 0 0 0 5 3 2 47050302
+0 0 0 0 0 5 4 2 47050402
+0 0 0 0 0 5 5 2 47050502
+0 0 0 0 0 5 6 2 47050602
+0 0 0 0 0 5 7 2 47050702
+0 0 0 0 0 5 8 2 47050802
+0 0 0 0 0 5 9 2 47050902
-"Time = 0.000000
--1.350000 47040001.0000000000000
--1.050000 47040101.0000000000000
--0.750000 47040201.0000000000000
--0.450000 47040301.0000000000000
--0.150000 47040401.0000000000000
-0.150000 47040501.0000000000000
-0.450000 47040601.0000000000000
-0.750000 47040701.0000000000000
-1.050000 47040801.0000000000000
-1.350000 47040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 47050002
+1 0 0 0 0 5 1 2 47050102
+1 0 0 0 0 5 2 2 47050202
+1 0 0 0 0 5 3 2 47050302
+1 0 0 0 0 5 4 2 47050402
+1 0 0 0 0 5 5 2 47050502
+1 0 0 0 0 5 6 2 47050602
+1 0 0 0 0 5 7 2 47050702
+1 0 0 0 0 5 8 2 47050802
+1 0 0 0 0 5 9 2 47050902
+
-"Time = 1.000000
--1.350000 -47040002.0000000000000
--1.050000 -47040102.0000000000000
--0.750000 -47040202.0000000000000
--0.450000 -47040302.0000000000000
--0.150000 -47040402.0000000000000
-0.150000 -47040502.0000000000000
-0.450000 -47040602.0000000000000
-0.750000 -47040702.0000000000000
-1.050000 -47040802.0000000000000
-1.350000 -47040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/fzx.zl b/CarpetAttic/Cart3dTest/test/bitant/fzx.zl
index 00b1f1f97..6a7aaf327 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/fzx.zl
+++ b/CarpetAttic/Cart3dTest/test/bitant/fzx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx z (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 47050500
+0 0 0 0 0 5 5 1 47050501
+0 0 0 0 0 5 5 2 47050502
+0 0 0 0 0 5 5 3 47050503
+0 0 0 0 0 5 5 4 47050504
+0 0 0 0 0 5 5 5 47050505
+0 0 0 0 0 5 5 6 47050506
+0 0 0 0 0 5 5 7 47050507
+0 0 0 0 0 5 5 8 47050508
+0 0 0 0 0 5 5 9 47050509
-"Time = 0.000000
--0.450000 47040400.0000000000000
--0.150000 47040401.0000000000000
-0.150000 47040402.0000000000000
-0.450000 47040403.0000000000000
-0.750000 47040404.0000000000000
-1.050000 47040405.0000000000000
-1.350000 47040406.0000000000000
-1.650000 47040407.0000000000000
-1.950000 47040408.0000000000000
-2.250000 47040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 -47050503
+1 0 0 0 0 5 5 1 -47050502
+1 0 0 0 0 5 5 2 47050502
+1 0 0 0 0 5 5 3 47050503
+1 0 0 0 0 5 5 4 47050504
+1 0 0 0 0 5 5 5 47050505
+1 0 0 0 0 5 5 6 47050506
+1 0 0 0 0 5 5 7 47050507
+1 0 0 0 0 5 5 8 47050508
+1 0 0 0 0 5 5 9 47050509
+
-"Time = 1.000000
--0.450000 -47040403.0000000000000
--0.150000 -47040402.0000000000000
-0.150000 47040402.0000000000000
-0.450000 47040403.0000000000000
-0.750000 47040404.0000000000000
-1.050000 47040405.0000000000000
-1.350000 47040406.0000000000000
-1.650000 47040407.0000000000000
-1.950000 47040408.0000000000000
-2.250000 47040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/fzy.xl b/CarpetAttic/Cart3dTest/test/bitant/fzy.xl
index 6c80e9453..67d0795b4 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/fzy.xl
+++ b/CarpetAttic/Cart3dTest/test/bitant/fzy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy x (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 48000502
+0 0 0 0 0 1 5 2 48010502
+0 0 0 0 0 2 5 2 48020502
+0 0 0 0 0 3 5 2 48030502
+0 0 0 0 0 4 5 2 48040502
+0 0 0 0 0 5 5 2 48050502
+0 0 0 0 0 6 5 2 48060502
+0 0 0 0 0 7 5 2 48070502
+0 0 0 0 0 8 5 2 48080502
+0 0 0 0 0 9 5 2 48090502
-"Time = 0.000000
--1.350000 48000401.0000000000000
--1.050000 48010401.0000000000000
--0.750000 48020401.0000000000000
--0.450000 48030401.0000000000000
--0.150000 48040401.0000000000000
-0.150000 48050401.0000000000000
-0.450000 48060401.0000000000000
-0.750000 48070401.0000000000000
-1.050000 48080401.0000000000000
-1.350000 48090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 48000502
+1 0 0 0 0 1 5 2 48010502
+1 0 0 0 0 2 5 2 48020502
+1 0 0 0 0 3 5 2 48030502
+1 0 0 0 0 4 5 2 48040502
+1 0 0 0 0 5 5 2 48050502
+1 0 0 0 0 6 5 2 48060502
+1 0 0 0 0 7 5 2 48070502
+1 0 0 0 0 8 5 2 48080502
+1 0 0 0 0 9 5 2 48090502
+
-"Time = 1.000000
--1.350000 -48000402.0000000000000
--1.050000 -48010402.0000000000000
--0.750000 -48020402.0000000000000
--0.450000 -48030402.0000000000000
--0.150000 -48040402.0000000000000
-0.150000 -48050402.0000000000000
-0.450000 -48060402.0000000000000
-0.750000 -48070402.0000000000000
-1.050000 -48080402.0000000000000
-1.350000 -48090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/fzy.yl b/CarpetAttic/Cart3dTest/test/bitant/fzy.yl
index 7af4ef5d2..d4f39f9f5 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/fzy.yl
+++ b/CarpetAttic/Cart3dTest/test/bitant/fzy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy y (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 48050002
+0 0 0 0 0 5 1 2 48050102
+0 0 0 0 0 5 2 2 48050202
+0 0 0 0 0 5 3 2 48050302
+0 0 0 0 0 5 4 2 48050402
+0 0 0 0 0 5 5 2 48050502
+0 0 0 0 0 5 6 2 48050602
+0 0 0 0 0 5 7 2 48050702
+0 0 0 0 0 5 8 2 48050802
+0 0 0 0 0 5 9 2 48050902
-"Time = 0.000000
--1.350000 48040001.0000000000000
--1.050000 48040101.0000000000000
--0.750000 48040201.0000000000000
--0.450000 48040301.0000000000000
--0.150000 48040401.0000000000000
-0.150000 48040501.0000000000000
-0.450000 48040601.0000000000000
-0.750000 48040701.0000000000000
-1.050000 48040801.0000000000000
-1.350000 48040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 48050002
+1 0 0 0 0 5 1 2 48050102
+1 0 0 0 0 5 2 2 48050202
+1 0 0 0 0 5 3 2 48050302
+1 0 0 0 0 5 4 2 48050402
+1 0 0 0 0 5 5 2 48050502
+1 0 0 0 0 5 6 2 48050602
+1 0 0 0 0 5 7 2 48050702
+1 0 0 0 0 5 8 2 48050802
+1 0 0 0 0 5 9 2 48050902
+
-"Time = 1.000000
--1.350000 -48040002.0000000000000
--1.050000 -48040102.0000000000000
--0.750000 -48040202.0000000000000
--0.450000 -48040302.0000000000000
--0.150000 -48040402.0000000000000
-0.150000 -48040502.0000000000000
-0.450000 -48040602.0000000000000
-0.750000 -48040702.0000000000000
-1.050000 -48040802.0000000000000
-1.350000 -48040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/fzy.zl b/CarpetAttic/Cart3dTest/test/bitant/fzy.zl
index 40ea92c2d..23ee48c3d 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/fzy.zl
+++ b/CarpetAttic/Cart3dTest/test/bitant/fzy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy z (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 48050500
+0 0 0 0 0 5 5 1 48050501
+0 0 0 0 0 5 5 2 48050502
+0 0 0 0 0 5 5 3 48050503
+0 0 0 0 0 5 5 4 48050504
+0 0 0 0 0 5 5 5 48050505
+0 0 0 0 0 5 5 6 48050506
+0 0 0 0 0 5 5 7 48050507
+0 0 0 0 0 5 5 8 48050508
+0 0 0 0 0 5 5 9 48050509
-"Time = 0.000000
--0.450000 48040400.0000000000000
--0.150000 48040401.0000000000000
-0.150000 48040402.0000000000000
-0.450000 48040403.0000000000000
-0.750000 48040404.0000000000000
-1.050000 48040405.0000000000000
-1.350000 48040406.0000000000000
-1.650000 48040407.0000000000000
-1.950000 48040408.0000000000000
-2.250000 48040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 -48050503
+1 0 0 0 0 5 5 1 -48050502
+1 0 0 0 0 5 5 2 48050502
+1 0 0 0 0 5 5 3 48050503
+1 0 0 0 0 5 5 4 48050504
+1 0 0 0 0 5 5 5 48050505
+1 0 0 0 0 5 5 6 48050506
+1 0 0 0 0 5 5 7 48050507
+1 0 0 0 0 5 5 8 48050508
+1 0 0 0 0 5 5 9 48050509
+
-"Time = 1.000000
--0.450000 -48040403.0000000000000
--0.150000 -48040402.0000000000000
-0.150000 48040402.0000000000000
-0.450000 48040403.0000000000000
-0.750000 48040404.0000000000000
-1.050000 48040405.0000000000000
-1.350000 48040406.0000000000000
-1.650000 48040407.0000000000000
-1.950000 48040408.0000000000000
-2.250000 48040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/fzz.xl b/CarpetAttic/Cart3dTest/test/bitant/fzz.xl
index abcb766c4..ea6d43b75 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/fzz.xl
+++ b/CarpetAttic/Cart3dTest/test/bitant/fzz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz x (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 49000502
+0 0 0 0 0 1 5 2 49010502
+0 0 0 0 0 2 5 2 49020502
+0 0 0 0 0 3 5 2 49030502
+0 0 0 0 0 4 5 2 49040502
+0 0 0 0 0 5 5 2 49050502
+0 0 0 0 0 6 5 2 49060502
+0 0 0 0 0 7 5 2 49070502
+0 0 0 0 0 8 5 2 49080502
+0 0 0 0 0 9 5 2 49090502
-"Time = 0.000000
--1.350000 49000401.0000000000000
--1.050000 49010401.0000000000000
--0.750000 49020401.0000000000000
--0.450000 49030401.0000000000000
--0.150000 49040401.0000000000000
-0.150000 49050401.0000000000000
-0.450000 49060401.0000000000000
-0.750000 49070401.0000000000000
-1.050000 49080401.0000000000000
-1.350000 49090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 49000502
+1 0 0 0 0 1 5 2 49010502
+1 0 0 0 0 2 5 2 49020502
+1 0 0 0 0 3 5 2 49030502
+1 0 0 0 0 4 5 2 49040502
+1 0 0 0 0 5 5 2 49050502
+1 0 0 0 0 6 5 2 49060502
+1 0 0 0 0 7 5 2 49070502
+1 0 0 0 0 8 5 2 49080502
+1 0 0 0 0 9 5 2 49090502
+
-"Time = 1.000000
--1.350000 49000402.0000000000000
--1.050000 49010402.0000000000000
--0.750000 49020402.0000000000000
--0.450000 49030402.0000000000000
--0.150000 49040402.0000000000000
-0.150000 49050402.0000000000000
-0.450000 49060402.0000000000000
-0.750000 49070402.0000000000000
-1.050000 49080402.0000000000000
-1.350000 49090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/fzz.yl b/CarpetAttic/Cart3dTest/test/bitant/fzz.yl
index b851d68d1..4259fdddb 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/fzz.yl
+++ b/CarpetAttic/Cart3dTest/test/bitant/fzz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz y (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 49050002
+0 0 0 0 0 5 1 2 49050102
+0 0 0 0 0 5 2 2 49050202
+0 0 0 0 0 5 3 2 49050302
+0 0 0 0 0 5 4 2 49050402
+0 0 0 0 0 5 5 2 49050502
+0 0 0 0 0 5 6 2 49050602
+0 0 0 0 0 5 7 2 49050702
+0 0 0 0 0 5 8 2 49050802
+0 0 0 0 0 5 9 2 49050902
-"Time = 0.000000
--1.350000 49040001.0000000000000
--1.050000 49040101.0000000000000
--0.750000 49040201.0000000000000
--0.450000 49040301.0000000000000
--0.150000 49040401.0000000000000
-0.150000 49040501.0000000000000
-0.450000 49040601.0000000000000
-0.750000 49040701.0000000000000
-1.050000 49040801.0000000000000
-1.350000 49040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 49050002
+1 0 0 0 0 5 1 2 49050102
+1 0 0 0 0 5 2 2 49050202
+1 0 0 0 0 5 3 2 49050302
+1 0 0 0 0 5 4 2 49050402
+1 0 0 0 0 5 5 2 49050502
+1 0 0 0 0 5 6 2 49050602
+1 0 0 0 0 5 7 2 49050702
+1 0 0 0 0 5 8 2 49050802
+1 0 0 0 0 5 9 2 49050902
+
-"Time = 1.000000
--1.350000 49040002.0000000000000
--1.050000 49040102.0000000000000
--0.750000 49040202.0000000000000
--0.450000 49040302.0000000000000
--0.150000 49040402.0000000000000
-0.150000 49040502.0000000000000
-0.450000 49040602.0000000000000
-0.750000 49040702.0000000000000
-1.050000 49040802.0000000000000
-1.350000 49040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/fzz.zl b/CarpetAttic/Cart3dTest/test/bitant/fzz.zl
index 47b36a33f..12f4d1be3 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/fzz.zl
+++ b/CarpetAttic/Cart3dTest/test/bitant/fzz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz z (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 49050500
+0 0 0 0 0 5 5 1 49050501
+0 0 0 0 0 5 5 2 49050502
+0 0 0 0 0 5 5 3 49050503
+0 0 0 0 0 5 5 4 49050504
+0 0 0 0 0 5 5 5 49050505
+0 0 0 0 0 5 5 6 49050506
+0 0 0 0 0 5 5 7 49050507
+0 0 0 0 0 5 5 8 49050508
+0 0 0 0 0 5 5 9 49050509
-"Time = 0.000000
--0.450000 49040400.0000000000000
--0.150000 49040401.0000000000000
-0.150000 49040402.0000000000000
-0.450000 49040403.0000000000000
-0.750000 49040404.0000000000000
-1.050000 49040405.0000000000000
-1.350000 49040406.0000000000000
-1.650000 49040407.0000000000000
-1.950000 49040408.0000000000000
-2.250000 49040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 49050503
+1 0 0 0 0 5 5 1 49050502
+1 0 0 0 0 5 5 2 49050502
+1 0 0 0 0 5 5 3 49050503
+1 0 0 0 0 5 5 4 49050504
+1 0 0 0 0 5 5 5 49050505
+1 0 0 0 0 5 5 6 49050506
+1 0 0 0 0 5 5 7 49050507
+1 0 0 0 0 5 5 8 49050508
+1 0 0 0 0 5 5 9 49050509
+
-"Time = 1.000000
--0.450000 49040403.0000000000000
--0.150000 49040402.0000000000000
-0.150000 49040402.0000000000000
-0.450000 49040403.0000000000000
-0.750000 49040404.0000000000000
-1.050000 49040405.0000000000000
-1.350000 49040406.0000000000000
-1.650000 49040407.0000000000000
-1.950000 49040408.0000000000000
-2.250000 49040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/s.xl b/CarpetAttic/Cart3dTest/test/bitant/s.xl
index 0af736304..7a04400cd 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/s.xl
+++ b/CarpetAttic/Cart3dTest/test/bitant/s.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::s x (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 1000502
+0 0 0 0 0 1 5 2 1010502
+0 0 0 0 0 2 5 2 1020502
+0 0 0 0 0 3 5 2 1030502
+0 0 0 0 0 4 5 2 1040502
+0 0 0 0 0 5 5 2 1050502
+0 0 0 0 0 6 5 2 1060502
+0 0 0 0 0 7 5 2 1070502
+0 0 0 0 0 8 5 2 1080502
+0 0 0 0 0 9 5 2 1090502
-"Time = 0.000000
--1.350000 1000401.0000000000000
--1.050000 1010401.0000000000000
--0.750000 1020401.0000000000000
--0.450000 1030401.0000000000000
--0.150000 1040401.0000000000000
-0.150000 1050401.0000000000000
-0.450000 1060401.0000000000000
-0.750000 1070401.0000000000000
-1.050000 1080401.0000000000000
-1.350000 1090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 1000502
+1 0 0 0 0 1 5 2 1010502
+1 0 0 0 0 2 5 2 1020502
+1 0 0 0 0 3 5 2 1030502
+1 0 0 0 0 4 5 2 1040502
+1 0 0 0 0 5 5 2 1050502
+1 0 0 0 0 6 5 2 1060502
+1 0 0 0 0 7 5 2 1070502
+1 0 0 0 0 8 5 2 1080502
+1 0 0 0 0 9 5 2 1090502
+
-"Time = 1.000000
--1.350000 1000402.0000000000000
--1.050000 1010402.0000000000000
--0.750000 1020402.0000000000000
--0.450000 1030402.0000000000000
--0.150000 1040402.0000000000000
-0.150000 1050402.0000000000000
-0.450000 1060402.0000000000000
-0.750000 1070402.0000000000000
-1.050000 1080402.0000000000000
-1.350000 1090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/s.yl b/CarpetAttic/Cart3dTest/test/bitant/s.yl
index 8c4131fec..015f9c174 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/s.yl
+++ b/CarpetAttic/Cart3dTest/test/bitant/s.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::s y (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 1050002
+0 0 0 0 0 5 1 2 1050102
+0 0 0 0 0 5 2 2 1050202
+0 0 0 0 0 5 3 2 1050302
+0 0 0 0 0 5 4 2 1050402
+0 0 0 0 0 5 5 2 1050502
+0 0 0 0 0 5 6 2 1050602
+0 0 0 0 0 5 7 2 1050702
+0 0 0 0 0 5 8 2 1050802
+0 0 0 0 0 5 9 2 1050902
-"Time = 0.000000
--1.350000 1040001.0000000000000
--1.050000 1040101.0000000000000
--0.750000 1040201.0000000000000
--0.450000 1040301.0000000000000
--0.150000 1040401.0000000000000
-0.150000 1040501.0000000000000
-0.450000 1040601.0000000000000
-0.750000 1040701.0000000000000
-1.050000 1040801.0000000000000
-1.350000 1040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 1050002
+1 0 0 0 0 5 1 2 1050102
+1 0 0 0 0 5 2 2 1050202
+1 0 0 0 0 5 3 2 1050302
+1 0 0 0 0 5 4 2 1050402
+1 0 0 0 0 5 5 2 1050502
+1 0 0 0 0 5 6 2 1050602
+1 0 0 0 0 5 7 2 1050702
+1 0 0 0 0 5 8 2 1050802
+1 0 0 0 0 5 9 2 1050902
+
-"Time = 1.000000
--1.350000 1040002.0000000000000
--1.050000 1040102.0000000000000
--0.750000 1040202.0000000000000
--0.450000 1040302.0000000000000
--0.150000 1040402.0000000000000
-0.150000 1040502.0000000000000
-0.450000 1040602.0000000000000
-0.750000 1040702.0000000000000
-1.050000 1040802.0000000000000
-1.350000 1040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/s.zl b/CarpetAttic/Cart3dTest/test/bitant/s.zl
index 4a0e0c367..023100e8a 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/s.zl
+++ b/CarpetAttic/Cart3dTest/test/bitant/s.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::s z (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 1050500
+0 0 0 0 0 5 5 1 1050501
+0 0 0 0 0 5 5 2 1050502
+0 0 0 0 0 5 5 3 1050503
+0 0 0 0 0 5 5 4 1050504
+0 0 0 0 0 5 5 5 1050505
+0 0 0 0 0 5 5 6 1050506
+0 0 0 0 0 5 5 7 1050507
+0 0 0 0 0 5 5 8 1050508
+0 0 0 0 0 5 5 9 1050509
-"Time = 0.000000
--0.450000 1040400.0000000000000
--0.150000 1040401.0000000000000
-0.150000 1040402.0000000000000
-0.450000 1040403.0000000000000
-0.750000 1040404.0000000000000
-1.050000 1040405.0000000000000
-1.350000 1040406.0000000000000
-1.650000 1040407.0000000000000
-1.950000 1040408.0000000000000
-2.250000 1040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 1050503
+1 0 0 0 0 5 5 1 1050502
+1 0 0 0 0 5 5 2 1050502
+1 0 0 0 0 5 5 3 1050503
+1 0 0 0 0 5 5 4 1050504
+1 0 0 0 0 5 5 5 1050505
+1 0 0 0 0 5 5 6 1050506
+1 0 0 0 0 5 5 7 1050507
+1 0 0 0 0 5 5 8 1050508
+1 0 0 0 0 5 5 9 1050509
+
-"Time = 1.000000
--0.450000 1040403.0000000000000
--0.150000 1040402.0000000000000
-0.150000 1040402.0000000000000
-0.450000 1040403.0000000000000
-0.750000 1040404.0000000000000
-1.050000 1040405.0000000000000
-1.350000 1040406.0000000000000
-1.650000 1040407.0000000000000
-1.950000 1040408.0000000000000
-2.250000 1040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/spher3d_r.xl b/CarpetAttic/Cart3dTest/test/bitant/spher3d_r.xl
index 2865c92e4..ac37f85d4 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/spher3d_r.xl
+++ b/CarpetAttic/Cart3dTest/test/bitant/spher3d_r.xl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r x (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 1.36656503687164
+0 0 0 0 0 1 5 2 1.07121426428143
+0 0 0 0 0 2 5 2 0.779422863405995
+0 0 0 0 0 3 5 2 0.49749371855331
+0 0 0 0 0 4 5 2 0.259807621135332
+0 0 0 0 0 5 5 2 0.259807621135332
+0 0 0 0 0 6 5 2 0.49749371855331
+0 0 0 0 0 7 5 2 0.779422863405995
+0 0 0 0 0 8 5 2 1.07121426428143
+0 0 0 0 0 9 5 2 1.36656503687164
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 1.36656503687164
+1 0 0 0 0 1 5 2 1.07121426428143
+1 0 0 0 0 2 5 2 0.779422863405995
+1 0 0 0 0 3 5 2 0.49749371855331
+1 0 0 0 0 4 5 2 0.259807621135332
+1 0 0 0 0 5 5 2 0.259807621135332
+1 0 0 0 0 6 5 2 0.49749371855331
+1 0 0 0 0 7 5 2 0.779422863405995
+1 0 0 0 0 8 5 2 1.07121426428143
+1 0 0 0 0 9 5 2 1.36656503687164
+
-"Time = 1.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
diff --git a/CarpetAttic/Cart3dTest/test/bitant/spher3d_r.yl b/CarpetAttic/Cart3dTest/test/bitant/spher3d_r.yl
index 2865c92e4..231a17018 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/spher3d_r.yl
+++ b/CarpetAttic/Cart3dTest/test/bitant/spher3d_r.yl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r y (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 1.36656503687164
+0 0 0 0 0 5 1 2 1.07121426428143
+0 0 0 0 0 5 2 2 0.779422863405995
+0 0 0 0 0 5 3 2 0.49749371855331
+0 0 0 0 0 5 4 2 0.259807621135332
+0 0 0 0 0 5 5 2 0.259807621135332
+0 0 0 0 0 5 6 2 0.49749371855331
+0 0 0 0 0 5 7 2 0.779422863405995
+0 0 0 0 0 5 8 2 1.07121426428143
+0 0 0 0 0 5 9 2 1.36656503687164
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 1.36656503687164
+1 0 0 0 0 5 1 2 1.07121426428143
+1 0 0 0 0 5 2 2 0.779422863405995
+1 0 0 0 0 5 3 2 0.49749371855331
+1 0 0 0 0 5 4 2 0.259807621135332
+1 0 0 0 0 5 5 2 0.259807621135332
+1 0 0 0 0 5 6 2 0.49749371855331
+1 0 0 0 0 5 7 2 0.779422863405995
+1 0 0 0 0 5 8 2 1.07121426428143
+1 0 0 0 0 5 9 2 1.36656503687164
+
-"Time = 1.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
diff --git a/CarpetAttic/Cart3dTest/test/bitant/spher3d_r.zl b/CarpetAttic/Cart3dTest/test/bitant/spher3d_r.zl
index 10f9f0031..400eb7b81 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/spher3d_r.zl
+++ b/CarpetAttic/Cart3dTest/test/bitant/spher3d_r.zl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r z (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 0.49749371855331
+0 0 0 0 0 5 5 1 0.259807621135332
+0 0 0 0 0 5 5 2 0.259807621135332
+0 0 0 0 0 5 5 3 0.49749371855331
+0 0 0 0 0 5 5 4 0.779422863405995
+0 0 0 0 0 5 5 5 1.07121426428143
+0 0 0 0 0 5 5 6 1.36656503687164
+0 0 0 0 0 5 5 7 1.66358047596141
+0 0 0 0 0 5 5 8 1.9615045245933
+0 0 0 0 0 5 5 9 2.2599778759979
-"Time = 0.000000
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 0.49749371855331
+1 0 0 0 0 5 5 1 0.259807621135332
+1 0 0 0 0 5 5 2 0.259807621135332
+1 0 0 0 0 5 5 3 0.49749371855331
+1 0 0 0 0 5 5 4 0.779422863405995
+1 0 0 0 0 5 5 5 1.07121426428143
+1 0 0 0 0 5 5 6 1.36656503687164
+1 0 0 0 0 5 5 7 1.66358047596141
+1 0 0 0 0 5 5 8 1.9615045245933
+1 0 0 0 0 5 5 9 2.2599778759979
+
-"Time = 1.000000
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
diff --git a/CarpetAttic/Cart3dTest/test/bitant/txx.xl b/CarpetAttic/Cart3dTest/test/bitant/txx.xl
index cc8245109..b7e4ea8ba 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/txx.xl
+++ b/CarpetAttic/Cart3dTest/test/bitant/txx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx x (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 21000502
+0 0 0 0 0 1 5 2 21010502
+0 0 0 0 0 2 5 2 21020502
+0 0 0 0 0 3 5 2 21030502
+0 0 0 0 0 4 5 2 21040502
+0 0 0 0 0 5 5 2 21050502
+0 0 0 0 0 6 5 2 21060502
+0 0 0 0 0 7 5 2 21070502
+0 0 0 0 0 8 5 2 21080502
+0 0 0 0 0 9 5 2 21090502
-"Time = 0.000000
--1.350000 21000401.0000000000000
--1.050000 21010401.0000000000000
--0.750000 21020401.0000000000000
--0.450000 21030401.0000000000000
--0.150000 21040401.0000000000000
-0.150000 21050401.0000000000000
-0.450000 21060401.0000000000000
-0.750000 21070401.0000000000000
-1.050000 21080401.0000000000000
-1.350000 21090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 21000502
+1 0 0 0 0 1 5 2 21010502
+1 0 0 0 0 2 5 2 21020502
+1 0 0 0 0 3 5 2 21030502
+1 0 0 0 0 4 5 2 21040502
+1 0 0 0 0 5 5 2 21050502
+1 0 0 0 0 6 5 2 21060502
+1 0 0 0 0 7 5 2 21070502
+1 0 0 0 0 8 5 2 21080502
+1 0 0 0 0 9 5 2 21090502
+
-"Time = 1.000000
--1.350000 21000402.0000000000000
--1.050000 21010402.0000000000000
--0.750000 21020402.0000000000000
--0.450000 21030402.0000000000000
--0.150000 21040402.0000000000000
-0.150000 21050402.0000000000000
-0.450000 21060402.0000000000000
-0.750000 21070402.0000000000000
-1.050000 21080402.0000000000000
-1.350000 21090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/txx.yl b/CarpetAttic/Cart3dTest/test/bitant/txx.yl
index 868037b63..438a399f6 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/txx.yl
+++ b/CarpetAttic/Cart3dTest/test/bitant/txx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx y (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 21050002
+0 0 0 0 0 5 1 2 21050102
+0 0 0 0 0 5 2 2 21050202
+0 0 0 0 0 5 3 2 21050302
+0 0 0 0 0 5 4 2 21050402
+0 0 0 0 0 5 5 2 21050502
+0 0 0 0 0 5 6 2 21050602
+0 0 0 0 0 5 7 2 21050702
+0 0 0 0 0 5 8 2 21050802
+0 0 0 0 0 5 9 2 21050902
-"Time = 0.000000
--1.350000 21040001.0000000000000
--1.050000 21040101.0000000000000
--0.750000 21040201.0000000000000
--0.450000 21040301.0000000000000
--0.150000 21040401.0000000000000
-0.150000 21040501.0000000000000
-0.450000 21040601.0000000000000
-0.750000 21040701.0000000000000
-1.050000 21040801.0000000000000
-1.350000 21040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 21050002
+1 0 0 0 0 5 1 2 21050102
+1 0 0 0 0 5 2 2 21050202
+1 0 0 0 0 5 3 2 21050302
+1 0 0 0 0 5 4 2 21050402
+1 0 0 0 0 5 5 2 21050502
+1 0 0 0 0 5 6 2 21050602
+1 0 0 0 0 5 7 2 21050702
+1 0 0 0 0 5 8 2 21050802
+1 0 0 0 0 5 9 2 21050902
+
-"Time = 1.000000
--1.350000 21040002.0000000000000
--1.050000 21040102.0000000000000
--0.750000 21040202.0000000000000
--0.450000 21040302.0000000000000
--0.150000 21040402.0000000000000
-0.150000 21040502.0000000000000
-0.450000 21040602.0000000000000
-0.750000 21040702.0000000000000
-1.050000 21040802.0000000000000
-1.350000 21040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/txx.zl b/CarpetAttic/Cart3dTest/test/bitant/txx.zl
index 08e89a7cf..5fc1b3e07 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/txx.zl
+++ b/CarpetAttic/Cart3dTest/test/bitant/txx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx z (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 21050500
+0 0 0 0 0 5 5 1 21050501
+0 0 0 0 0 5 5 2 21050502
+0 0 0 0 0 5 5 3 21050503
+0 0 0 0 0 5 5 4 21050504
+0 0 0 0 0 5 5 5 21050505
+0 0 0 0 0 5 5 6 21050506
+0 0 0 0 0 5 5 7 21050507
+0 0 0 0 0 5 5 8 21050508
+0 0 0 0 0 5 5 9 21050509
-"Time = 0.000000
--0.450000 21040400.0000000000000
--0.150000 21040401.0000000000000
-0.150000 21040402.0000000000000
-0.450000 21040403.0000000000000
-0.750000 21040404.0000000000000
-1.050000 21040405.0000000000000
-1.350000 21040406.0000000000000
-1.650000 21040407.0000000000000
-1.950000 21040408.0000000000000
-2.250000 21040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 21050503
+1 0 0 0 0 5 5 1 21050502
+1 0 0 0 0 5 5 2 21050502
+1 0 0 0 0 5 5 3 21050503
+1 0 0 0 0 5 5 4 21050504
+1 0 0 0 0 5 5 5 21050505
+1 0 0 0 0 5 5 6 21050506
+1 0 0 0 0 5 5 7 21050507
+1 0 0 0 0 5 5 8 21050508
+1 0 0 0 0 5 5 9 21050509
+
-"Time = 1.000000
--0.450000 21040403.0000000000000
--0.150000 21040402.0000000000000
-0.150000 21040402.0000000000000
-0.450000 21040403.0000000000000
-0.750000 21040404.0000000000000
-1.050000 21040405.0000000000000
-1.350000 21040406.0000000000000
-1.650000 21040407.0000000000000
-1.950000 21040408.0000000000000
-2.250000 21040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/txy.xl b/CarpetAttic/Cart3dTest/test/bitant/txy.xl
index 8e79b4514..2278b90e1 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/txy.xl
+++ b/CarpetAttic/Cart3dTest/test/bitant/txy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy x (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 22000502
+0 0 0 0 0 1 5 2 22010502
+0 0 0 0 0 2 5 2 22020502
+0 0 0 0 0 3 5 2 22030502
+0 0 0 0 0 4 5 2 22040502
+0 0 0 0 0 5 5 2 22050502
+0 0 0 0 0 6 5 2 22060502
+0 0 0 0 0 7 5 2 22070502
+0 0 0 0 0 8 5 2 22080502
+0 0 0 0 0 9 5 2 22090502
-"Time = 0.000000
--1.350000 22000401.0000000000000
--1.050000 22010401.0000000000000
--0.750000 22020401.0000000000000
--0.450000 22030401.0000000000000
--0.150000 22040401.0000000000000
-0.150000 22050401.0000000000000
-0.450000 22060401.0000000000000
-0.750000 22070401.0000000000000
-1.050000 22080401.0000000000000
-1.350000 22090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 22000502
+1 0 0 0 0 1 5 2 22010502
+1 0 0 0 0 2 5 2 22020502
+1 0 0 0 0 3 5 2 22030502
+1 0 0 0 0 4 5 2 22040502
+1 0 0 0 0 5 5 2 22050502
+1 0 0 0 0 6 5 2 22060502
+1 0 0 0 0 7 5 2 22070502
+1 0 0 0 0 8 5 2 22080502
+1 0 0 0 0 9 5 2 22090502
+
-"Time = 1.000000
--1.350000 22000402.0000000000000
--1.050000 22010402.0000000000000
--0.750000 22020402.0000000000000
--0.450000 22030402.0000000000000
--0.150000 22040402.0000000000000
-0.150000 22050402.0000000000000
-0.450000 22060402.0000000000000
-0.750000 22070402.0000000000000
-1.050000 22080402.0000000000000
-1.350000 22090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/txy.yl b/CarpetAttic/Cart3dTest/test/bitant/txy.yl
index d925232b1..c13cc81d7 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/txy.yl
+++ b/CarpetAttic/Cart3dTest/test/bitant/txy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy y (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 22050002
+0 0 0 0 0 5 1 2 22050102
+0 0 0 0 0 5 2 2 22050202
+0 0 0 0 0 5 3 2 22050302
+0 0 0 0 0 5 4 2 22050402
+0 0 0 0 0 5 5 2 22050502
+0 0 0 0 0 5 6 2 22050602
+0 0 0 0 0 5 7 2 22050702
+0 0 0 0 0 5 8 2 22050802
+0 0 0 0 0 5 9 2 22050902
-"Time = 0.000000
--1.350000 22040001.0000000000000
--1.050000 22040101.0000000000000
--0.750000 22040201.0000000000000
--0.450000 22040301.0000000000000
--0.150000 22040401.0000000000000
-0.150000 22040501.0000000000000
-0.450000 22040601.0000000000000
-0.750000 22040701.0000000000000
-1.050000 22040801.0000000000000
-1.350000 22040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 22050002
+1 0 0 0 0 5 1 2 22050102
+1 0 0 0 0 5 2 2 22050202
+1 0 0 0 0 5 3 2 22050302
+1 0 0 0 0 5 4 2 22050402
+1 0 0 0 0 5 5 2 22050502
+1 0 0 0 0 5 6 2 22050602
+1 0 0 0 0 5 7 2 22050702
+1 0 0 0 0 5 8 2 22050802
+1 0 0 0 0 5 9 2 22050902
+
-"Time = 1.000000
--1.350000 22040002.0000000000000
--1.050000 22040102.0000000000000
--0.750000 22040202.0000000000000
--0.450000 22040302.0000000000000
--0.150000 22040402.0000000000000
-0.150000 22040502.0000000000000
-0.450000 22040602.0000000000000
-0.750000 22040702.0000000000000
-1.050000 22040802.0000000000000
-1.350000 22040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/txy.zl b/CarpetAttic/Cart3dTest/test/bitant/txy.zl
index 5876255dc..c0dd702cb 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/txy.zl
+++ b/CarpetAttic/Cart3dTest/test/bitant/txy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy z (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 22050500
+0 0 0 0 0 5 5 1 22050501
+0 0 0 0 0 5 5 2 22050502
+0 0 0 0 0 5 5 3 22050503
+0 0 0 0 0 5 5 4 22050504
+0 0 0 0 0 5 5 5 22050505
+0 0 0 0 0 5 5 6 22050506
+0 0 0 0 0 5 5 7 22050507
+0 0 0 0 0 5 5 8 22050508
+0 0 0 0 0 5 5 9 22050509
-"Time = 0.000000
--0.450000 22040400.0000000000000
--0.150000 22040401.0000000000000
-0.150000 22040402.0000000000000
-0.450000 22040403.0000000000000
-0.750000 22040404.0000000000000
-1.050000 22040405.0000000000000
-1.350000 22040406.0000000000000
-1.650000 22040407.0000000000000
-1.950000 22040408.0000000000000
-2.250000 22040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 22050503
+1 0 0 0 0 5 5 1 22050502
+1 0 0 0 0 5 5 2 22050502
+1 0 0 0 0 5 5 3 22050503
+1 0 0 0 0 5 5 4 22050504
+1 0 0 0 0 5 5 5 22050505
+1 0 0 0 0 5 5 6 22050506
+1 0 0 0 0 5 5 7 22050507
+1 0 0 0 0 5 5 8 22050508
+1 0 0 0 0 5 5 9 22050509
+
-"Time = 1.000000
--0.450000 22040403.0000000000000
--0.150000 22040402.0000000000000
-0.150000 22040402.0000000000000
-0.450000 22040403.0000000000000
-0.750000 22040404.0000000000000
-1.050000 22040405.0000000000000
-1.350000 22040406.0000000000000
-1.650000 22040407.0000000000000
-1.950000 22040408.0000000000000
-2.250000 22040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/txz.xl b/CarpetAttic/Cart3dTest/test/bitant/txz.xl
index a370e966a..f00e24469 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/txz.xl
+++ b/CarpetAttic/Cart3dTest/test/bitant/txz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz x (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 23000502
+0 0 0 0 0 1 5 2 23010502
+0 0 0 0 0 2 5 2 23020502
+0 0 0 0 0 3 5 2 23030502
+0 0 0 0 0 4 5 2 23040502
+0 0 0 0 0 5 5 2 23050502
+0 0 0 0 0 6 5 2 23060502
+0 0 0 0 0 7 5 2 23070502
+0 0 0 0 0 8 5 2 23080502
+0 0 0 0 0 9 5 2 23090502
-"Time = 0.000000
--1.350000 23000401.0000000000000
--1.050000 23010401.0000000000000
--0.750000 23020401.0000000000000
--0.450000 23030401.0000000000000
--0.150000 23040401.0000000000000
-0.150000 23050401.0000000000000
-0.450000 23060401.0000000000000
-0.750000 23070401.0000000000000
-1.050000 23080401.0000000000000
-1.350000 23090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 23000502
+1 0 0 0 0 1 5 2 23010502
+1 0 0 0 0 2 5 2 23020502
+1 0 0 0 0 3 5 2 23030502
+1 0 0 0 0 4 5 2 23040502
+1 0 0 0 0 5 5 2 23050502
+1 0 0 0 0 6 5 2 23060502
+1 0 0 0 0 7 5 2 23070502
+1 0 0 0 0 8 5 2 23080502
+1 0 0 0 0 9 5 2 23090502
+
-"Time = 1.000000
--1.350000 -23000402.0000000000000
--1.050000 -23010402.0000000000000
--0.750000 -23020402.0000000000000
--0.450000 -23030402.0000000000000
--0.150000 -23040402.0000000000000
-0.150000 -23050402.0000000000000
-0.450000 -23060402.0000000000000
-0.750000 -23070402.0000000000000
-1.050000 -23080402.0000000000000
-1.350000 -23090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/txz.yl b/CarpetAttic/Cart3dTest/test/bitant/txz.yl
index 1251c0795..a3bd867b5 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/txz.yl
+++ b/CarpetAttic/Cart3dTest/test/bitant/txz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz y (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 23050002
+0 0 0 0 0 5 1 2 23050102
+0 0 0 0 0 5 2 2 23050202
+0 0 0 0 0 5 3 2 23050302
+0 0 0 0 0 5 4 2 23050402
+0 0 0 0 0 5 5 2 23050502
+0 0 0 0 0 5 6 2 23050602
+0 0 0 0 0 5 7 2 23050702
+0 0 0 0 0 5 8 2 23050802
+0 0 0 0 0 5 9 2 23050902
-"Time = 0.000000
--1.350000 23040001.0000000000000
--1.050000 23040101.0000000000000
--0.750000 23040201.0000000000000
--0.450000 23040301.0000000000000
--0.150000 23040401.0000000000000
-0.150000 23040501.0000000000000
-0.450000 23040601.0000000000000
-0.750000 23040701.0000000000000
-1.050000 23040801.0000000000000
-1.350000 23040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 23050002
+1 0 0 0 0 5 1 2 23050102
+1 0 0 0 0 5 2 2 23050202
+1 0 0 0 0 5 3 2 23050302
+1 0 0 0 0 5 4 2 23050402
+1 0 0 0 0 5 5 2 23050502
+1 0 0 0 0 5 6 2 23050602
+1 0 0 0 0 5 7 2 23050702
+1 0 0 0 0 5 8 2 23050802
+1 0 0 0 0 5 9 2 23050902
+
-"Time = 1.000000
--1.350000 -23040002.0000000000000
--1.050000 -23040102.0000000000000
--0.750000 -23040202.0000000000000
--0.450000 -23040302.0000000000000
--0.150000 -23040402.0000000000000
-0.150000 -23040502.0000000000000
-0.450000 -23040602.0000000000000
-0.750000 -23040702.0000000000000
-1.050000 -23040802.0000000000000
-1.350000 -23040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/txz.zl b/CarpetAttic/Cart3dTest/test/bitant/txz.zl
index f8278e742..d6a44e761 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/txz.zl
+++ b/CarpetAttic/Cart3dTest/test/bitant/txz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz z (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 23050500
+0 0 0 0 0 5 5 1 23050501
+0 0 0 0 0 5 5 2 23050502
+0 0 0 0 0 5 5 3 23050503
+0 0 0 0 0 5 5 4 23050504
+0 0 0 0 0 5 5 5 23050505
+0 0 0 0 0 5 5 6 23050506
+0 0 0 0 0 5 5 7 23050507
+0 0 0 0 0 5 5 8 23050508
+0 0 0 0 0 5 5 9 23050509
-"Time = 0.000000
--0.450000 23040400.0000000000000
--0.150000 23040401.0000000000000
-0.150000 23040402.0000000000000
-0.450000 23040403.0000000000000
-0.750000 23040404.0000000000000
-1.050000 23040405.0000000000000
-1.350000 23040406.0000000000000
-1.650000 23040407.0000000000000
-1.950000 23040408.0000000000000
-2.250000 23040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 -23050503
+1 0 0 0 0 5 5 1 -23050502
+1 0 0 0 0 5 5 2 23050502
+1 0 0 0 0 5 5 3 23050503
+1 0 0 0 0 5 5 4 23050504
+1 0 0 0 0 5 5 5 23050505
+1 0 0 0 0 5 5 6 23050506
+1 0 0 0 0 5 5 7 23050507
+1 0 0 0 0 5 5 8 23050508
+1 0 0 0 0 5 5 9 23050509
+
-"Time = 1.000000
--0.450000 -23040403.0000000000000
--0.150000 -23040402.0000000000000
-0.150000 23040402.0000000000000
-0.450000 23040403.0000000000000
-0.750000 23040404.0000000000000
-1.050000 23040405.0000000000000
-1.350000 23040406.0000000000000
-1.650000 23040407.0000000000000
-1.950000 23040408.0000000000000
-2.250000 23040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/tyy.xl b/CarpetAttic/Cart3dTest/test/bitant/tyy.xl
index e3195b2ec..e6d2a0f09 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/tyy.xl
+++ b/CarpetAttic/Cart3dTest/test/bitant/tyy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy x (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 24000502
+0 0 0 0 0 1 5 2 24010502
+0 0 0 0 0 2 5 2 24020502
+0 0 0 0 0 3 5 2 24030502
+0 0 0 0 0 4 5 2 24040502
+0 0 0 0 0 5 5 2 24050502
+0 0 0 0 0 6 5 2 24060502
+0 0 0 0 0 7 5 2 24070502
+0 0 0 0 0 8 5 2 24080502
+0 0 0 0 0 9 5 2 24090502
-"Time = 0.000000
--1.350000 24000401.0000000000000
--1.050000 24010401.0000000000000
--0.750000 24020401.0000000000000
--0.450000 24030401.0000000000000
--0.150000 24040401.0000000000000
-0.150000 24050401.0000000000000
-0.450000 24060401.0000000000000
-0.750000 24070401.0000000000000
-1.050000 24080401.0000000000000
-1.350000 24090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 24000502
+1 0 0 0 0 1 5 2 24010502
+1 0 0 0 0 2 5 2 24020502
+1 0 0 0 0 3 5 2 24030502
+1 0 0 0 0 4 5 2 24040502
+1 0 0 0 0 5 5 2 24050502
+1 0 0 0 0 6 5 2 24060502
+1 0 0 0 0 7 5 2 24070502
+1 0 0 0 0 8 5 2 24080502
+1 0 0 0 0 9 5 2 24090502
+
-"Time = 1.000000
--1.350000 24000402.0000000000000
--1.050000 24010402.0000000000000
--0.750000 24020402.0000000000000
--0.450000 24030402.0000000000000
--0.150000 24040402.0000000000000
-0.150000 24050402.0000000000000
-0.450000 24060402.0000000000000
-0.750000 24070402.0000000000000
-1.050000 24080402.0000000000000
-1.350000 24090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/tyy.yl b/CarpetAttic/Cart3dTest/test/bitant/tyy.yl
index 40d82cc85..f3689adbc 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/tyy.yl
+++ b/CarpetAttic/Cart3dTest/test/bitant/tyy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy y (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 24050002
+0 0 0 0 0 5 1 2 24050102
+0 0 0 0 0 5 2 2 24050202
+0 0 0 0 0 5 3 2 24050302
+0 0 0 0 0 5 4 2 24050402
+0 0 0 0 0 5 5 2 24050502
+0 0 0 0 0 5 6 2 24050602
+0 0 0 0 0 5 7 2 24050702
+0 0 0 0 0 5 8 2 24050802
+0 0 0 0 0 5 9 2 24050902
-"Time = 0.000000
--1.350000 24040001.0000000000000
--1.050000 24040101.0000000000000
--0.750000 24040201.0000000000000
--0.450000 24040301.0000000000000
--0.150000 24040401.0000000000000
-0.150000 24040501.0000000000000
-0.450000 24040601.0000000000000
-0.750000 24040701.0000000000000
-1.050000 24040801.0000000000000
-1.350000 24040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 24050002
+1 0 0 0 0 5 1 2 24050102
+1 0 0 0 0 5 2 2 24050202
+1 0 0 0 0 5 3 2 24050302
+1 0 0 0 0 5 4 2 24050402
+1 0 0 0 0 5 5 2 24050502
+1 0 0 0 0 5 6 2 24050602
+1 0 0 0 0 5 7 2 24050702
+1 0 0 0 0 5 8 2 24050802
+1 0 0 0 0 5 9 2 24050902
+
-"Time = 1.000000
--1.350000 24040002.0000000000000
--1.050000 24040102.0000000000000
--0.750000 24040202.0000000000000
--0.450000 24040302.0000000000000
--0.150000 24040402.0000000000000
-0.150000 24040502.0000000000000
-0.450000 24040602.0000000000000
-0.750000 24040702.0000000000000
-1.050000 24040802.0000000000000
-1.350000 24040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/tyy.zl b/CarpetAttic/Cart3dTest/test/bitant/tyy.zl
index 5b806834d..959fbb5a3 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/tyy.zl
+++ b/CarpetAttic/Cart3dTest/test/bitant/tyy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy z (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 24050500
+0 0 0 0 0 5 5 1 24050501
+0 0 0 0 0 5 5 2 24050502
+0 0 0 0 0 5 5 3 24050503
+0 0 0 0 0 5 5 4 24050504
+0 0 0 0 0 5 5 5 24050505
+0 0 0 0 0 5 5 6 24050506
+0 0 0 0 0 5 5 7 24050507
+0 0 0 0 0 5 5 8 24050508
+0 0 0 0 0 5 5 9 24050509
-"Time = 0.000000
--0.450000 24040400.0000000000000
--0.150000 24040401.0000000000000
-0.150000 24040402.0000000000000
-0.450000 24040403.0000000000000
-0.750000 24040404.0000000000000
-1.050000 24040405.0000000000000
-1.350000 24040406.0000000000000
-1.650000 24040407.0000000000000
-1.950000 24040408.0000000000000
-2.250000 24040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 24050503
+1 0 0 0 0 5 5 1 24050502
+1 0 0 0 0 5 5 2 24050502
+1 0 0 0 0 5 5 3 24050503
+1 0 0 0 0 5 5 4 24050504
+1 0 0 0 0 5 5 5 24050505
+1 0 0 0 0 5 5 6 24050506
+1 0 0 0 0 5 5 7 24050507
+1 0 0 0 0 5 5 8 24050508
+1 0 0 0 0 5 5 9 24050509
+
-"Time = 1.000000
--0.450000 24040403.0000000000000
--0.150000 24040402.0000000000000
-0.150000 24040402.0000000000000
-0.450000 24040403.0000000000000
-0.750000 24040404.0000000000000
-1.050000 24040405.0000000000000
-1.350000 24040406.0000000000000
-1.650000 24040407.0000000000000
-1.950000 24040408.0000000000000
-2.250000 24040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/tyz.xl b/CarpetAttic/Cart3dTest/test/bitant/tyz.xl
index 06ddb5042..d6075fb0e 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/tyz.xl
+++ b/CarpetAttic/Cart3dTest/test/bitant/tyz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz x (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 25000502
+0 0 0 0 0 1 5 2 25010502
+0 0 0 0 0 2 5 2 25020502
+0 0 0 0 0 3 5 2 25030502
+0 0 0 0 0 4 5 2 25040502
+0 0 0 0 0 5 5 2 25050502
+0 0 0 0 0 6 5 2 25060502
+0 0 0 0 0 7 5 2 25070502
+0 0 0 0 0 8 5 2 25080502
+0 0 0 0 0 9 5 2 25090502
-"Time = 0.000000
--1.350000 25000401.0000000000000
--1.050000 25010401.0000000000000
--0.750000 25020401.0000000000000
--0.450000 25030401.0000000000000
--0.150000 25040401.0000000000000
-0.150000 25050401.0000000000000
-0.450000 25060401.0000000000000
-0.750000 25070401.0000000000000
-1.050000 25080401.0000000000000
-1.350000 25090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 25000502
+1 0 0 0 0 1 5 2 25010502
+1 0 0 0 0 2 5 2 25020502
+1 0 0 0 0 3 5 2 25030502
+1 0 0 0 0 4 5 2 25040502
+1 0 0 0 0 5 5 2 25050502
+1 0 0 0 0 6 5 2 25060502
+1 0 0 0 0 7 5 2 25070502
+1 0 0 0 0 8 5 2 25080502
+1 0 0 0 0 9 5 2 25090502
+
-"Time = 1.000000
--1.350000 -25000402.0000000000000
--1.050000 -25010402.0000000000000
--0.750000 -25020402.0000000000000
--0.450000 -25030402.0000000000000
--0.150000 -25040402.0000000000000
-0.150000 -25050402.0000000000000
-0.450000 -25060402.0000000000000
-0.750000 -25070402.0000000000000
-1.050000 -25080402.0000000000000
-1.350000 -25090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/tyz.yl b/CarpetAttic/Cart3dTest/test/bitant/tyz.yl
index 560ff04a3..0e370ce86 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/tyz.yl
+++ b/CarpetAttic/Cart3dTest/test/bitant/tyz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz y (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 25050002
+0 0 0 0 0 5 1 2 25050102
+0 0 0 0 0 5 2 2 25050202
+0 0 0 0 0 5 3 2 25050302
+0 0 0 0 0 5 4 2 25050402
+0 0 0 0 0 5 5 2 25050502
+0 0 0 0 0 5 6 2 25050602
+0 0 0 0 0 5 7 2 25050702
+0 0 0 0 0 5 8 2 25050802
+0 0 0 0 0 5 9 2 25050902
-"Time = 0.000000
--1.350000 25040001.0000000000000
--1.050000 25040101.0000000000000
--0.750000 25040201.0000000000000
--0.450000 25040301.0000000000000
--0.150000 25040401.0000000000000
-0.150000 25040501.0000000000000
-0.450000 25040601.0000000000000
-0.750000 25040701.0000000000000
-1.050000 25040801.0000000000000
-1.350000 25040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 25050002
+1 0 0 0 0 5 1 2 25050102
+1 0 0 0 0 5 2 2 25050202
+1 0 0 0 0 5 3 2 25050302
+1 0 0 0 0 5 4 2 25050402
+1 0 0 0 0 5 5 2 25050502
+1 0 0 0 0 5 6 2 25050602
+1 0 0 0 0 5 7 2 25050702
+1 0 0 0 0 5 8 2 25050802
+1 0 0 0 0 5 9 2 25050902
+
-"Time = 1.000000
--1.350000 -25040002.0000000000000
--1.050000 -25040102.0000000000000
--0.750000 -25040202.0000000000000
--0.450000 -25040302.0000000000000
--0.150000 -25040402.0000000000000
-0.150000 -25040502.0000000000000
-0.450000 -25040602.0000000000000
-0.750000 -25040702.0000000000000
-1.050000 -25040802.0000000000000
-1.350000 -25040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/tyz.zl b/CarpetAttic/Cart3dTest/test/bitant/tyz.zl
index b3a0529d0..c6b21906f 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/tyz.zl
+++ b/CarpetAttic/Cart3dTest/test/bitant/tyz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz z (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 25050500
+0 0 0 0 0 5 5 1 25050501
+0 0 0 0 0 5 5 2 25050502
+0 0 0 0 0 5 5 3 25050503
+0 0 0 0 0 5 5 4 25050504
+0 0 0 0 0 5 5 5 25050505
+0 0 0 0 0 5 5 6 25050506
+0 0 0 0 0 5 5 7 25050507
+0 0 0 0 0 5 5 8 25050508
+0 0 0 0 0 5 5 9 25050509
-"Time = 0.000000
--0.450000 25040400.0000000000000
--0.150000 25040401.0000000000000
-0.150000 25040402.0000000000000
-0.450000 25040403.0000000000000
-0.750000 25040404.0000000000000
-1.050000 25040405.0000000000000
-1.350000 25040406.0000000000000
-1.650000 25040407.0000000000000
-1.950000 25040408.0000000000000
-2.250000 25040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 -25050503
+1 0 0 0 0 5 5 1 -25050502
+1 0 0 0 0 5 5 2 25050502
+1 0 0 0 0 5 5 3 25050503
+1 0 0 0 0 5 5 4 25050504
+1 0 0 0 0 5 5 5 25050505
+1 0 0 0 0 5 5 6 25050506
+1 0 0 0 0 5 5 7 25050507
+1 0 0 0 0 5 5 8 25050508
+1 0 0 0 0 5 5 9 25050509
+
-"Time = 1.000000
--0.450000 -25040403.0000000000000
--0.150000 -25040402.0000000000000
-0.150000 25040402.0000000000000
-0.450000 25040403.0000000000000
-0.750000 25040404.0000000000000
-1.050000 25040405.0000000000000
-1.350000 25040406.0000000000000
-1.650000 25040407.0000000000000
-1.950000 25040408.0000000000000
-2.250000 25040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/tzz.xl b/CarpetAttic/Cart3dTest/test/bitant/tzz.xl
index b6417ca35..6a6693415 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/tzz.xl
+++ b/CarpetAttic/Cart3dTest/test/bitant/tzz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz x (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 26000502
+0 0 0 0 0 1 5 2 26010502
+0 0 0 0 0 2 5 2 26020502
+0 0 0 0 0 3 5 2 26030502
+0 0 0 0 0 4 5 2 26040502
+0 0 0 0 0 5 5 2 26050502
+0 0 0 0 0 6 5 2 26060502
+0 0 0 0 0 7 5 2 26070502
+0 0 0 0 0 8 5 2 26080502
+0 0 0 0 0 9 5 2 26090502
-"Time = 0.000000
--1.350000 26000401.0000000000000
--1.050000 26010401.0000000000000
--0.750000 26020401.0000000000000
--0.450000 26030401.0000000000000
--0.150000 26040401.0000000000000
-0.150000 26050401.0000000000000
-0.450000 26060401.0000000000000
-0.750000 26070401.0000000000000
-1.050000 26080401.0000000000000
-1.350000 26090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 26000502
+1 0 0 0 0 1 5 2 26010502
+1 0 0 0 0 2 5 2 26020502
+1 0 0 0 0 3 5 2 26030502
+1 0 0 0 0 4 5 2 26040502
+1 0 0 0 0 5 5 2 26050502
+1 0 0 0 0 6 5 2 26060502
+1 0 0 0 0 7 5 2 26070502
+1 0 0 0 0 8 5 2 26080502
+1 0 0 0 0 9 5 2 26090502
+
-"Time = 1.000000
--1.350000 26000402.0000000000000
--1.050000 26010402.0000000000000
--0.750000 26020402.0000000000000
--0.450000 26030402.0000000000000
--0.150000 26040402.0000000000000
-0.150000 26050402.0000000000000
-0.450000 26060402.0000000000000
-0.750000 26070402.0000000000000
-1.050000 26080402.0000000000000
-1.350000 26090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/tzz.yl b/CarpetAttic/Cart3dTest/test/bitant/tzz.yl
index c8440d3ab..284ebfe33 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/tzz.yl
+++ b/CarpetAttic/Cart3dTest/test/bitant/tzz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz y (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 26050002
+0 0 0 0 0 5 1 2 26050102
+0 0 0 0 0 5 2 2 26050202
+0 0 0 0 0 5 3 2 26050302
+0 0 0 0 0 5 4 2 26050402
+0 0 0 0 0 5 5 2 26050502
+0 0 0 0 0 5 6 2 26050602
+0 0 0 0 0 5 7 2 26050702
+0 0 0 0 0 5 8 2 26050802
+0 0 0 0 0 5 9 2 26050902
-"Time = 0.000000
--1.350000 26040001.0000000000000
--1.050000 26040101.0000000000000
--0.750000 26040201.0000000000000
--0.450000 26040301.0000000000000
--0.150000 26040401.0000000000000
-0.150000 26040501.0000000000000
-0.450000 26040601.0000000000000
-0.750000 26040701.0000000000000
-1.050000 26040801.0000000000000
-1.350000 26040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 26050002
+1 0 0 0 0 5 1 2 26050102
+1 0 0 0 0 5 2 2 26050202
+1 0 0 0 0 5 3 2 26050302
+1 0 0 0 0 5 4 2 26050402
+1 0 0 0 0 5 5 2 26050502
+1 0 0 0 0 5 6 2 26050602
+1 0 0 0 0 5 7 2 26050702
+1 0 0 0 0 5 8 2 26050802
+1 0 0 0 0 5 9 2 26050902
+
-"Time = 1.000000
--1.350000 26040002.0000000000000
--1.050000 26040102.0000000000000
--0.750000 26040202.0000000000000
--0.450000 26040302.0000000000000
--0.150000 26040402.0000000000000
-0.150000 26040502.0000000000000
-0.450000 26040602.0000000000000
-0.750000 26040702.0000000000000
-1.050000 26040802.0000000000000
-1.350000 26040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/tzz.zl b/CarpetAttic/Cart3dTest/test/bitant/tzz.zl
index e7fc2afb2..d83404bd5 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/tzz.zl
+++ b/CarpetAttic/Cart3dTest/test/bitant/tzz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz z (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 26050500
+0 0 0 0 0 5 5 1 26050501
+0 0 0 0 0 5 5 2 26050502
+0 0 0 0 0 5 5 3 26050503
+0 0 0 0 0 5 5 4 26050504
+0 0 0 0 0 5 5 5 26050505
+0 0 0 0 0 5 5 6 26050506
+0 0 0 0 0 5 5 7 26050507
+0 0 0 0 0 5 5 8 26050508
+0 0 0 0 0 5 5 9 26050509
-"Time = 0.000000
--0.450000 26040400.0000000000000
--0.150000 26040401.0000000000000
-0.150000 26040402.0000000000000
-0.450000 26040403.0000000000000
-0.750000 26040404.0000000000000
-1.050000 26040405.0000000000000
-1.350000 26040406.0000000000000
-1.650000 26040407.0000000000000
-1.950000 26040408.0000000000000
-2.250000 26040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 26050503
+1 0 0 0 0 5 5 1 26050502
+1 0 0 0 0 5 5 2 26050502
+1 0 0 0 0 5 5 3 26050503
+1 0 0 0 0 5 5 4 26050504
+1 0 0 0 0 5 5 5 26050505
+1 0 0 0 0 5 5 6 26050506
+1 0 0 0 0 5 5 7 26050507
+1 0 0 0 0 5 5 8 26050508
+1 0 0 0 0 5 5 9 26050509
+
-"Time = 1.000000
--0.450000 26040403.0000000000000
--0.150000 26040402.0000000000000
-0.150000 26040402.0000000000000
-0.450000 26040403.0000000000000
-0.750000 26040404.0000000000000
-1.050000 26040405.0000000000000
-1.350000 26040406.0000000000000
-1.650000 26040407.0000000000000
-1.950000 26040408.0000000000000
-2.250000 26040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/vx.xl b/CarpetAttic/Cart3dTest/test/bitant/vx.xl
index 23a596665..f94c0a207 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/vx.xl
+++ b/CarpetAttic/Cart3dTest/test/bitant/vx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx x (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 11000502
+0 0 0 0 0 1 5 2 11010502
+0 0 0 0 0 2 5 2 11020502
+0 0 0 0 0 3 5 2 11030502
+0 0 0 0 0 4 5 2 11040502
+0 0 0 0 0 5 5 2 11050502
+0 0 0 0 0 6 5 2 11060502
+0 0 0 0 0 7 5 2 11070502
+0 0 0 0 0 8 5 2 11080502
+0 0 0 0 0 9 5 2 11090502
-"Time = 0.000000
--1.350000 11000401.0000000000000
--1.050000 11010401.0000000000000
--0.750000 11020401.0000000000000
--0.450000 11030401.0000000000000
--0.150000 11040401.0000000000000
-0.150000 11050401.0000000000000
-0.450000 11060401.0000000000000
-0.750000 11070401.0000000000000
-1.050000 11080401.0000000000000
-1.350000 11090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 11000502
+1 0 0 0 0 1 5 2 11010502
+1 0 0 0 0 2 5 2 11020502
+1 0 0 0 0 3 5 2 11030502
+1 0 0 0 0 4 5 2 11040502
+1 0 0 0 0 5 5 2 11050502
+1 0 0 0 0 6 5 2 11060502
+1 0 0 0 0 7 5 2 11070502
+1 0 0 0 0 8 5 2 11080502
+1 0 0 0 0 9 5 2 11090502
+
-"Time = 1.000000
--1.350000 11000402.0000000000000
--1.050000 11010402.0000000000000
--0.750000 11020402.0000000000000
--0.450000 11030402.0000000000000
--0.150000 11040402.0000000000000
-0.150000 11050402.0000000000000
-0.450000 11060402.0000000000000
-0.750000 11070402.0000000000000
-1.050000 11080402.0000000000000
-1.350000 11090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/vx.yl b/CarpetAttic/Cart3dTest/test/bitant/vx.yl
index 05a452ddc..a09629e86 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/vx.yl
+++ b/CarpetAttic/Cart3dTest/test/bitant/vx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx y (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 11050002
+0 0 0 0 0 5 1 2 11050102
+0 0 0 0 0 5 2 2 11050202
+0 0 0 0 0 5 3 2 11050302
+0 0 0 0 0 5 4 2 11050402
+0 0 0 0 0 5 5 2 11050502
+0 0 0 0 0 5 6 2 11050602
+0 0 0 0 0 5 7 2 11050702
+0 0 0 0 0 5 8 2 11050802
+0 0 0 0 0 5 9 2 11050902
-"Time = 0.000000
--1.350000 11040001.0000000000000
--1.050000 11040101.0000000000000
--0.750000 11040201.0000000000000
--0.450000 11040301.0000000000000
--0.150000 11040401.0000000000000
-0.150000 11040501.0000000000000
-0.450000 11040601.0000000000000
-0.750000 11040701.0000000000000
-1.050000 11040801.0000000000000
-1.350000 11040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 11050002
+1 0 0 0 0 5 1 2 11050102
+1 0 0 0 0 5 2 2 11050202
+1 0 0 0 0 5 3 2 11050302
+1 0 0 0 0 5 4 2 11050402
+1 0 0 0 0 5 5 2 11050502
+1 0 0 0 0 5 6 2 11050602
+1 0 0 0 0 5 7 2 11050702
+1 0 0 0 0 5 8 2 11050802
+1 0 0 0 0 5 9 2 11050902
+
-"Time = 1.000000
--1.350000 11040002.0000000000000
--1.050000 11040102.0000000000000
--0.750000 11040202.0000000000000
--0.450000 11040302.0000000000000
--0.150000 11040402.0000000000000
-0.150000 11040502.0000000000000
-0.450000 11040602.0000000000000
-0.750000 11040702.0000000000000
-1.050000 11040802.0000000000000
-1.350000 11040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/vx.zl b/CarpetAttic/Cart3dTest/test/bitant/vx.zl
index da5c0305f..f9a980e5a 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/vx.zl
+++ b/CarpetAttic/Cart3dTest/test/bitant/vx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx z (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 11050500
+0 0 0 0 0 5 5 1 11050501
+0 0 0 0 0 5 5 2 11050502
+0 0 0 0 0 5 5 3 11050503
+0 0 0 0 0 5 5 4 11050504
+0 0 0 0 0 5 5 5 11050505
+0 0 0 0 0 5 5 6 11050506
+0 0 0 0 0 5 5 7 11050507
+0 0 0 0 0 5 5 8 11050508
+0 0 0 0 0 5 5 9 11050509
-"Time = 0.000000
--0.450000 11040400.0000000000000
--0.150000 11040401.0000000000000
-0.150000 11040402.0000000000000
-0.450000 11040403.0000000000000
-0.750000 11040404.0000000000000
-1.050000 11040405.0000000000000
-1.350000 11040406.0000000000000
-1.650000 11040407.0000000000000
-1.950000 11040408.0000000000000
-2.250000 11040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 11050503
+1 0 0 0 0 5 5 1 11050502
+1 0 0 0 0 5 5 2 11050502
+1 0 0 0 0 5 5 3 11050503
+1 0 0 0 0 5 5 4 11050504
+1 0 0 0 0 5 5 5 11050505
+1 0 0 0 0 5 5 6 11050506
+1 0 0 0 0 5 5 7 11050507
+1 0 0 0 0 5 5 8 11050508
+1 0 0 0 0 5 5 9 11050509
+
-"Time = 1.000000
--0.450000 11040403.0000000000000
--0.150000 11040402.0000000000000
-0.150000 11040402.0000000000000
-0.450000 11040403.0000000000000
-0.750000 11040404.0000000000000
-1.050000 11040405.0000000000000
-1.350000 11040406.0000000000000
-1.650000 11040407.0000000000000
-1.950000 11040408.0000000000000
-2.250000 11040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/vy.xl b/CarpetAttic/Cart3dTest/test/bitant/vy.xl
index ddce85716..2a77d06ac 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/vy.xl
+++ b/CarpetAttic/Cart3dTest/test/bitant/vy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy x (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 12000502
+0 0 0 0 0 1 5 2 12010502
+0 0 0 0 0 2 5 2 12020502
+0 0 0 0 0 3 5 2 12030502
+0 0 0 0 0 4 5 2 12040502
+0 0 0 0 0 5 5 2 12050502
+0 0 0 0 0 6 5 2 12060502
+0 0 0 0 0 7 5 2 12070502
+0 0 0 0 0 8 5 2 12080502
+0 0 0 0 0 9 5 2 12090502
-"Time = 0.000000
--1.350000 12000401.0000000000000
--1.050000 12010401.0000000000000
--0.750000 12020401.0000000000000
--0.450000 12030401.0000000000000
--0.150000 12040401.0000000000000
-0.150000 12050401.0000000000000
-0.450000 12060401.0000000000000
-0.750000 12070401.0000000000000
-1.050000 12080401.0000000000000
-1.350000 12090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 12000502
+1 0 0 0 0 1 5 2 12010502
+1 0 0 0 0 2 5 2 12020502
+1 0 0 0 0 3 5 2 12030502
+1 0 0 0 0 4 5 2 12040502
+1 0 0 0 0 5 5 2 12050502
+1 0 0 0 0 6 5 2 12060502
+1 0 0 0 0 7 5 2 12070502
+1 0 0 0 0 8 5 2 12080502
+1 0 0 0 0 9 5 2 12090502
+
-"Time = 1.000000
--1.350000 12000402.0000000000000
--1.050000 12010402.0000000000000
--0.750000 12020402.0000000000000
--0.450000 12030402.0000000000000
--0.150000 12040402.0000000000000
-0.150000 12050402.0000000000000
-0.450000 12060402.0000000000000
-0.750000 12070402.0000000000000
-1.050000 12080402.0000000000000
-1.350000 12090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/vy.yl b/CarpetAttic/Cart3dTest/test/bitant/vy.yl
index 51740ede1..c270e8b15 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/vy.yl
+++ b/CarpetAttic/Cart3dTest/test/bitant/vy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy y (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 12050002
+0 0 0 0 0 5 1 2 12050102
+0 0 0 0 0 5 2 2 12050202
+0 0 0 0 0 5 3 2 12050302
+0 0 0 0 0 5 4 2 12050402
+0 0 0 0 0 5 5 2 12050502
+0 0 0 0 0 5 6 2 12050602
+0 0 0 0 0 5 7 2 12050702
+0 0 0 0 0 5 8 2 12050802
+0 0 0 0 0 5 9 2 12050902
-"Time = 0.000000
--1.350000 12040001.0000000000000
--1.050000 12040101.0000000000000
--0.750000 12040201.0000000000000
--0.450000 12040301.0000000000000
--0.150000 12040401.0000000000000
-0.150000 12040501.0000000000000
-0.450000 12040601.0000000000000
-0.750000 12040701.0000000000000
-1.050000 12040801.0000000000000
-1.350000 12040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 12050002
+1 0 0 0 0 5 1 2 12050102
+1 0 0 0 0 5 2 2 12050202
+1 0 0 0 0 5 3 2 12050302
+1 0 0 0 0 5 4 2 12050402
+1 0 0 0 0 5 5 2 12050502
+1 0 0 0 0 5 6 2 12050602
+1 0 0 0 0 5 7 2 12050702
+1 0 0 0 0 5 8 2 12050802
+1 0 0 0 0 5 9 2 12050902
+
-"Time = 1.000000
--1.350000 12040002.0000000000000
--1.050000 12040102.0000000000000
--0.750000 12040202.0000000000000
--0.450000 12040302.0000000000000
--0.150000 12040402.0000000000000
-0.150000 12040502.0000000000000
-0.450000 12040602.0000000000000
-0.750000 12040702.0000000000000
-1.050000 12040802.0000000000000
-1.350000 12040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/vy.zl b/CarpetAttic/Cart3dTest/test/bitant/vy.zl
index 36c2d5840..5b2cfc59b 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/vy.zl
+++ b/CarpetAttic/Cart3dTest/test/bitant/vy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy z (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 12050500
+0 0 0 0 0 5 5 1 12050501
+0 0 0 0 0 5 5 2 12050502
+0 0 0 0 0 5 5 3 12050503
+0 0 0 0 0 5 5 4 12050504
+0 0 0 0 0 5 5 5 12050505
+0 0 0 0 0 5 5 6 12050506
+0 0 0 0 0 5 5 7 12050507
+0 0 0 0 0 5 5 8 12050508
+0 0 0 0 0 5 5 9 12050509
-"Time = 0.000000
--0.450000 12040400.0000000000000
--0.150000 12040401.0000000000000
-0.150000 12040402.0000000000000
-0.450000 12040403.0000000000000
-0.750000 12040404.0000000000000
-1.050000 12040405.0000000000000
-1.350000 12040406.0000000000000
-1.650000 12040407.0000000000000
-1.950000 12040408.0000000000000
-2.250000 12040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 12050503
+1 0 0 0 0 5 5 1 12050502
+1 0 0 0 0 5 5 2 12050502
+1 0 0 0 0 5 5 3 12050503
+1 0 0 0 0 5 5 4 12050504
+1 0 0 0 0 5 5 5 12050505
+1 0 0 0 0 5 5 6 12050506
+1 0 0 0 0 5 5 7 12050507
+1 0 0 0 0 5 5 8 12050508
+1 0 0 0 0 5 5 9 12050509
+
-"Time = 1.000000
--0.450000 12040403.0000000000000
--0.150000 12040402.0000000000000
-0.150000 12040402.0000000000000
-0.450000 12040403.0000000000000
-0.750000 12040404.0000000000000
-1.050000 12040405.0000000000000
-1.350000 12040406.0000000000000
-1.650000 12040407.0000000000000
-1.950000 12040408.0000000000000
-2.250000 12040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/vz.xl b/CarpetAttic/Cart3dTest/test/bitant/vz.xl
index 85eef0349..76d749a6a 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/vz.xl
+++ b/CarpetAttic/Cart3dTest/test/bitant/vz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz x (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 13000502
+0 0 0 0 0 1 5 2 13010502
+0 0 0 0 0 2 5 2 13020502
+0 0 0 0 0 3 5 2 13030502
+0 0 0 0 0 4 5 2 13040502
+0 0 0 0 0 5 5 2 13050502
+0 0 0 0 0 6 5 2 13060502
+0 0 0 0 0 7 5 2 13070502
+0 0 0 0 0 8 5 2 13080502
+0 0 0 0 0 9 5 2 13090502
-"Time = 0.000000
--1.350000 13000401.0000000000000
--1.050000 13010401.0000000000000
--0.750000 13020401.0000000000000
--0.450000 13030401.0000000000000
--0.150000 13040401.0000000000000
-0.150000 13050401.0000000000000
-0.450000 13060401.0000000000000
-0.750000 13070401.0000000000000
-1.050000 13080401.0000000000000
-1.350000 13090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 13000502
+1 0 0 0 0 1 5 2 13010502
+1 0 0 0 0 2 5 2 13020502
+1 0 0 0 0 3 5 2 13030502
+1 0 0 0 0 4 5 2 13040502
+1 0 0 0 0 5 5 2 13050502
+1 0 0 0 0 6 5 2 13060502
+1 0 0 0 0 7 5 2 13070502
+1 0 0 0 0 8 5 2 13080502
+1 0 0 0 0 9 5 2 13090502
+
-"Time = 1.000000
--1.350000 -13000402.0000000000000
--1.050000 -13010402.0000000000000
--0.750000 -13020402.0000000000000
--0.450000 -13030402.0000000000000
--0.150000 -13040402.0000000000000
-0.150000 -13050402.0000000000000
-0.450000 -13060402.0000000000000
-0.750000 -13070402.0000000000000
-1.050000 -13080402.0000000000000
-1.350000 -13090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/vz.yl b/CarpetAttic/Cart3dTest/test/bitant/vz.yl
index 2e1d3dccd..85d7292d6 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/vz.yl
+++ b/CarpetAttic/Cart3dTest/test/bitant/vz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz y (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 13050002
+0 0 0 0 0 5 1 2 13050102
+0 0 0 0 0 5 2 2 13050202
+0 0 0 0 0 5 3 2 13050302
+0 0 0 0 0 5 4 2 13050402
+0 0 0 0 0 5 5 2 13050502
+0 0 0 0 0 5 6 2 13050602
+0 0 0 0 0 5 7 2 13050702
+0 0 0 0 0 5 8 2 13050802
+0 0 0 0 0 5 9 2 13050902
-"Time = 0.000000
--1.350000 13040001.0000000000000
--1.050000 13040101.0000000000000
--0.750000 13040201.0000000000000
--0.450000 13040301.0000000000000
--0.150000 13040401.0000000000000
-0.150000 13040501.0000000000000
-0.450000 13040601.0000000000000
-0.750000 13040701.0000000000000
-1.050000 13040801.0000000000000
-1.350000 13040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 13050002
+1 0 0 0 0 5 1 2 13050102
+1 0 0 0 0 5 2 2 13050202
+1 0 0 0 0 5 3 2 13050302
+1 0 0 0 0 5 4 2 13050402
+1 0 0 0 0 5 5 2 13050502
+1 0 0 0 0 5 6 2 13050602
+1 0 0 0 0 5 7 2 13050702
+1 0 0 0 0 5 8 2 13050802
+1 0 0 0 0 5 9 2 13050902
+
-"Time = 1.000000
--1.350000 -13040002.0000000000000
--1.050000 -13040102.0000000000000
--0.750000 -13040202.0000000000000
--0.450000 -13040302.0000000000000
--0.150000 -13040402.0000000000000
-0.150000 -13040502.0000000000000
-0.450000 -13040602.0000000000000
-0.750000 -13040702.0000000000000
-1.050000 -13040802.0000000000000
-1.350000 -13040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/bitant/vz.zl b/CarpetAttic/Cart3dTest/test/bitant/vz.zl
index 7b9b2e07c..2431ae181 100644
--- a/CarpetAttic/Cart3dTest/test/bitant/vz.zl
+++ b/CarpetAttic/Cart3dTest/test/bitant/vz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz z (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 13050500
+0 0 0 0 0 5 5 1 13050501
+0 0 0 0 0 5 5 2 13050502
+0 0 0 0 0 5 5 3 13050503
+0 0 0 0 0 5 5 4 13050504
+0 0 0 0 0 5 5 5 13050505
+0 0 0 0 0 5 5 6 13050506
+0 0 0 0 0 5 5 7 13050507
+0 0 0 0 0 5 5 8 13050508
+0 0 0 0 0 5 5 9 13050509
-"Time = 0.000000
--0.450000 13040400.0000000000000
--0.150000 13040401.0000000000000
-0.150000 13040402.0000000000000
-0.450000 13040403.0000000000000
-0.750000 13040404.0000000000000
-1.050000 13040405.0000000000000
-1.350000 13040406.0000000000000
-1.650000 13040407.0000000000000
-1.950000 13040408.0000000000000
-2.250000 13040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 -13050503
+1 0 0 0 0 5 5 1 -13050502
+1 0 0 0 0 5 5 2 13050502
+1 0 0 0 0 5 5 3 13050503
+1 0 0 0 0 5 5 4 13050504
+1 0 0 0 0 5 5 5 13050505
+1 0 0 0 0 5 5 6 13050506
+1 0 0 0 0 5 5 7 13050507
+1 0 0 0 0 5 5 8 13050508
+1 0 0 0 0 5 5 9 13050509
+
-"Time = 1.000000
--0.450000 -13040403.0000000000000
--0.150000 -13040402.0000000000000
-0.150000 13040402.0000000000000
-0.450000 13040403.0000000000000
-0.750000 13040404.0000000000000
-1.050000 13040405.0000000000000
-1.350000 13040406.0000000000000
-1.650000 13040407.0000000000000
-1.950000 13040408.0000000000000
-2.250000 13040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_x.xl b/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_x.xl
index 3a5beb3c8..f63099708 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_x.xl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_x.xl
@@ -1,14 +1,19 @@
+# GRID::cart3d_x x (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 -1.5
+0 0 0 0 0 1 5 5 -1.2
+0 0 0 0 0 2 5 5 -0.9
+0 0 0 0 0 3 5 5 -0.6
+0 0 0 0 0 4 5 5 -0.3
+0 0 0 0 0 5 5 5 -5.55111512312578e-17
+0 0 0 0 0 6 5 5 0.3
+0 0 0 0 0 7 5 5 0.6
+0 0 0 0 0 8 5 5 0.9
+0 0 0 0 0 9 5 5 1.2
+0 0 0 0 0 10 5 5 1.5
+
-"Time = 0.000000
--1.500000 -1.5000000000000
--1.200000 -1.2000000000000
--0.900000 -0.9000000000000
--0.600000 -0.6000000000000
--0.300000 -0.3000000000000
--0.000000 -0.0000000000000
-0.300000 0.3000000000000
-0.600000 0.6000000000000
-0.900000 0.9000000000000
-1.200000 1.2000000000000
-1.500000 1.5000000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_x.yl b/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_x.yl
index 8edbc3041..201f809d0 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_x.yl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_x.yl
@@ -1,14 +1,19 @@
+# GRID::cart3d_x y (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 -5.55111512312578e-17
+0 0 0 0 0 5 1 5 -5.55111512312578e-17
+0 0 0 0 0 5 2 5 -5.55111512312578e-17
+0 0 0 0 0 5 3 5 -5.55111512312578e-17
+0 0 0 0 0 5 4 5 -5.55111512312578e-17
+0 0 0 0 0 5 5 5 -5.55111512312578e-17
+0 0 0 0 0 5 6 5 -5.55111512312578e-17
+0 0 0 0 0 5 7 5 -5.55111512312578e-17
+0 0 0 0 0 5 8 5 -5.55111512312578e-17
+0 0 0 0 0 5 9 5 -5.55111512312578e-17
+0 0 0 0 0 5 10 5 -5.55111512312578e-17
+
-"Time = 0.000000
--1.500000 -0.0000000000000
--1.200000 -0.0000000000000
--0.900000 -0.0000000000000
--0.600000 -0.0000000000000
--0.300000 -0.0000000000000
--0.000000 -0.0000000000000
-0.300000 -0.0000000000000
-0.600000 -0.0000000000000
-0.900000 -0.0000000000000
-1.200000 -0.0000000000000
-1.500000 -0.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_x.zl b/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_x.zl
index 8edbc3041..d71d3f95a 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_x.zl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_x.zl
@@ -1,14 +1,19 @@
+# GRID::cart3d_x z (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 -5.55111512312578e-17
+0 0 0 0 0 5 5 1 -5.55111512312578e-17
+0 0 0 0 0 5 5 2 -5.55111512312578e-17
+0 0 0 0 0 5 5 3 -5.55111512312578e-17
+0 0 0 0 0 5 5 4 -5.55111512312578e-17
+0 0 0 0 0 5 5 5 -5.55111512312578e-17
+0 0 0 0 0 5 5 6 -5.55111512312578e-17
+0 0 0 0 0 5 5 7 -5.55111512312578e-17
+0 0 0 0 0 5 5 8 -5.55111512312578e-17
+0 0 0 0 0 5 5 9 -5.55111512312578e-17
+0 0 0 0 0 5 5 10 -5.55111512312578e-17
+
-"Time = 0.000000
--1.500000 -0.0000000000000
--1.200000 -0.0000000000000
--0.900000 -0.0000000000000
--0.600000 -0.0000000000000
--0.300000 -0.0000000000000
--0.000000 -0.0000000000000
-0.300000 -0.0000000000000
-0.600000 -0.0000000000000
-0.900000 -0.0000000000000
-1.200000 -0.0000000000000
-1.500000 -0.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_y.xl b/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_y.xl
index 8edbc3041..af92033b6 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_y.xl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_y.xl
@@ -1,14 +1,19 @@
+# GRID::cart3d_y x (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 -5.55111512312578e-17
+0 0 0 0 0 1 5 5 -5.55111512312578e-17
+0 0 0 0 0 2 5 5 -5.55111512312578e-17
+0 0 0 0 0 3 5 5 -5.55111512312578e-17
+0 0 0 0 0 4 5 5 -5.55111512312578e-17
+0 0 0 0 0 5 5 5 -5.55111512312578e-17
+0 0 0 0 0 6 5 5 -5.55111512312578e-17
+0 0 0 0 0 7 5 5 -5.55111512312578e-17
+0 0 0 0 0 8 5 5 -5.55111512312578e-17
+0 0 0 0 0 9 5 5 -5.55111512312578e-17
+0 0 0 0 0 10 5 5 -5.55111512312578e-17
+
-"Time = 0.000000
--1.500000 -0.0000000000000
--1.200000 -0.0000000000000
--0.900000 -0.0000000000000
--0.600000 -0.0000000000000
--0.300000 -0.0000000000000
--0.000000 -0.0000000000000
-0.300000 -0.0000000000000
-0.600000 -0.0000000000000
-0.900000 -0.0000000000000
-1.200000 -0.0000000000000
-1.500000 -0.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_y.yl b/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_y.yl
index 3a5beb3c8..08726411d 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_y.yl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_y.yl
@@ -1,14 +1,19 @@
+# GRID::cart3d_y y (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 -1.5
+0 0 0 0 0 5 1 5 -1.2
+0 0 0 0 0 5 2 5 -0.9
+0 0 0 0 0 5 3 5 -0.6
+0 0 0 0 0 5 4 5 -0.3
+0 0 0 0 0 5 5 5 -5.55111512312578e-17
+0 0 0 0 0 5 6 5 0.3
+0 0 0 0 0 5 7 5 0.6
+0 0 0 0 0 5 8 5 0.9
+0 0 0 0 0 5 9 5 1.2
+0 0 0 0 0 5 10 5 1.5
+
-"Time = 0.000000
--1.500000 -1.5000000000000
--1.200000 -1.2000000000000
--0.900000 -0.9000000000000
--0.600000 -0.6000000000000
--0.300000 -0.3000000000000
--0.000000 -0.0000000000000
-0.300000 0.3000000000000
-0.600000 0.6000000000000
-0.900000 0.9000000000000
-1.200000 1.2000000000000
-1.500000 1.5000000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_y.zl b/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_y.zl
index 8edbc3041..6502ac6dc 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_y.zl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_y.zl
@@ -1,14 +1,19 @@
+# GRID::cart3d_y z (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 -5.55111512312578e-17
+0 0 0 0 0 5 5 1 -5.55111512312578e-17
+0 0 0 0 0 5 5 2 -5.55111512312578e-17
+0 0 0 0 0 5 5 3 -5.55111512312578e-17
+0 0 0 0 0 5 5 4 -5.55111512312578e-17
+0 0 0 0 0 5 5 5 -5.55111512312578e-17
+0 0 0 0 0 5 5 6 -5.55111512312578e-17
+0 0 0 0 0 5 5 7 -5.55111512312578e-17
+0 0 0 0 0 5 5 8 -5.55111512312578e-17
+0 0 0 0 0 5 5 9 -5.55111512312578e-17
+0 0 0 0 0 5 5 10 -5.55111512312578e-17
+
-"Time = 0.000000
--1.500000 -0.0000000000000
--1.200000 -0.0000000000000
--0.900000 -0.0000000000000
--0.600000 -0.0000000000000
--0.300000 -0.0000000000000
--0.000000 -0.0000000000000
-0.300000 -0.0000000000000
-0.600000 -0.0000000000000
-0.900000 -0.0000000000000
-1.200000 -0.0000000000000
-1.500000 -0.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_z.xl b/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_z.xl
index 8edbc3041..328bca7ea 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_z.xl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_z.xl
@@ -1,14 +1,19 @@
+# GRID::cart3d_z x (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 -5.55111512312578e-17
+0 0 0 0 0 1 5 5 -5.55111512312578e-17
+0 0 0 0 0 2 5 5 -5.55111512312578e-17
+0 0 0 0 0 3 5 5 -5.55111512312578e-17
+0 0 0 0 0 4 5 5 -5.55111512312578e-17
+0 0 0 0 0 5 5 5 -5.55111512312578e-17
+0 0 0 0 0 6 5 5 -5.55111512312578e-17
+0 0 0 0 0 7 5 5 -5.55111512312578e-17
+0 0 0 0 0 8 5 5 -5.55111512312578e-17
+0 0 0 0 0 9 5 5 -5.55111512312578e-17
+0 0 0 0 0 10 5 5 -5.55111512312578e-17
+
-"Time = 0.000000
--1.500000 -0.0000000000000
--1.200000 -0.0000000000000
--0.900000 -0.0000000000000
--0.600000 -0.0000000000000
--0.300000 -0.0000000000000
--0.000000 -0.0000000000000
-0.300000 -0.0000000000000
-0.600000 -0.0000000000000
-0.900000 -0.0000000000000
-1.200000 -0.0000000000000
-1.500000 -0.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_z.yl b/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_z.yl
index 8edbc3041..3ef82c136 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_z.yl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_z.yl
@@ -1,14 +1,19 @@
+# GRID::cart3d_z y (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 -5.55111512312578e-17
+0 0 0 0 0 5 1 5 -5.55111512312578e-17
+0 0 0 0 0 5 2 5 -5.55111512312578e-17
+0 0 0 0 0 5 3 5 -5.55111512312578e-17
+0 0 0 0 0 5 4 5 -5.55111512312578e-17
+0 0 0 0 0 5 5 5 -5.55111512312578e-17
+0 0 0 0 0 5 6 5 -5.55111512312578e-17
+0 0 0 0 0 5 7 5 -5.55111512312578e-17
+0 0 0 0 0 5 8 5 -5.55111512312578e-17
+0 0 0 0 0 5 9 5 -5.55111512312578e-17
+0 0 0 0 0 5 10 5 -5.55111512312578e-17
+
-"Time = 0.000000
--1.500000 -0.0000000000000
--1.200000 -0.0000000000000
--0.900000 -0.0000000000000
--0.600000 -0.0000000000000
--0.300000 -0.0000000000000
--0.000000 -0.0000000000000
-0.300000 -0.0000000000000
-0.600000 -0.0000000000000
-0.900000 -0.0000000000000
-1.200000 -0.0000000000000
-1.500000 -0.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_z.zl b/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_z.zl
index 3a5beb3c8..d451859ca 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_z.zl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/cart3d_z.zl
@@ -1,14 +1,19 @@
+# GRID::cart3d_z z (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 -1.5
+0 0 0 0 0 5 5 1 -1.2
+0 0 0 0 0 5 5 2 -0.9
+0 0 0 0 0 5 5 3 -0.6
+0 0 0 0 0 5 5 4 -0.3
+0 0 0 0 0 5 5 5 -5.55111512312578e-17
+0 0 0 0 0 5 5 6 0.3
+0 0 0 0 0 5 5 7 0.6
+0 0 0 0 0 5 5 8 0.9
+0 0 0 0 0 5 5 9 1.2
+0 0 0 0 0 5 5 10 1.5
+
-"Time = 0.000000
--1.500000 -1.5000000000000
--1.200000 -1.2000000000000
--0.900000 -0.9000000000000
--0.600000 -0.6000000000000
--0.300000 -0.3000000000000
--0.000000 -0.0000000000000
-0.300000 0.3000000000000
-0.600000 0.6000000000000
-0.900000 0.9000000000000
-1.200000 1.2000000000000
-1.500000 1.5000000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/spher3d_r.xl b/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/spher3d_r.xl
index dac82eac8..2bc9c21e8 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/spher3d_r.xl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/spher3d_r.xl
@@ -1,14 +1,19 @@
+# GRID::spher3d_r x (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 1.5
+0 0 0 0 0 1 5 5 1.2
+0 0 0 0 0 2 5 5 0.9
+0 0 0 0 0 3 5 5 0.6
+0 0 0 0 0 4 5 5 0.3
+0 0 0 0 0 5 5 5 9.61481343191782e-17
+0 0 0 0 0 6 5 5 0.3
+0 0 0 0 0 7 5 5 0.6
+0 0 0 0 0 8 5 5 0.9
+0 0 0 0 0 9 5 5 1.2
+0 0 0 0 0 10 5 5 1.5
+
-"Time = 0.000000
--1.500000 1.5000000000000
--1.200000 1.2000000000000
--0.900000 0.9000000000000
--0.600000 0.6000000000000
--0.300000 0.3000000000000
--0.000000 0.0000000000000
-0.300000 0.3000000000000
-0.600000 0.6000000000000
-0.900000 0.9000000000000
-1.200000 1.2000000000000
-1.500000 1.5000000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/spher3d_r.yl b/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/spher3d_r.yl
index dac82eac8..f605f05c5 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/spher3d_r.yl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/spher3d_r.yl
@@ -1,14 +1,19 @@
+# GRID::spher3d_r y (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 1.5
+0 0 0 0 0 5 1 5 1.2
+0 0 0 0 0 5 2 5 0.9
+0 0 0 0 0 5 3 5 0.6
+0 0 0 0 0 5 4 5 0.3
+0 0 0 0 0 5 5 5 9.61481343191782e-17
+0 0 0 0 0 5 6 5 0.3
+0 0 0 0 0 5 7 5 0.6
+0 0 0 0 0 5 8 5 0.9
+0 0 0 0 0 5 9 5 1.2
+0 0 0 0 0 5 10 5 1.5
+
-"Time = 0.000000
--1.500000 1.5000000000000
--1.200000 1.2000000000000
--0.900000 0.9000000000000
--0.600000 0.6000000000000
--0.300000 0.3000000000000
--0.000000 0.0000000000000
-0.300000 0.3000000000000
-0.600000 0.6000000000000
-0.900000 0.9000000000000
-1.200000 1.2000000000000
-1.500000 1.5000000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/spher3d_r.zl b/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/spher3d_r.zl
index dac82eac8..029764bb4 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/spher3d_r.zl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-eleven-withorigin/spher3d_r.zl
@@ -1,14 +1,19 @@
+# GRID::spher3d_r z (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 1.5
+0 0 0 0 0 5 5 1 1.2
+0 0 0 0 0 5 5 2 0.9
+0 0 0 0 0 5 5 3 0.6
+0 0 0 0 0 5 5 4 0.3
+0 0 0 0 0 5 5 5 9.61481343191782e-17
+0 0 0 0 0 5 5 6 0.3
+0 0 0 0 0 5 5 7 0.6
+0 0 0 0 0 5 5 8 0.9
+0 0 0 0 0 5 5 9 1.2
+0 0 0 0 0 5 5 10 1.5
+
-"Time = 0.000000
--1.500000 1.5000000000000
--1.200000 1.2000000000000
--0.900000 0.9000000000000
--0.600000 0.6000000000000
--0.300000 0.3000000000000
--0.000000 0.0000000000000
-0.300000 0.3000000000000
-0.600000 0.6000000000000
-0.900000 0.9000000000000
-1.200000 1.2000000000000
-1.500000 1.5000000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_x.xl b/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_x.xl
index a84cba46d..53b3e689d 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_x.xl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_x.xl
@@ -1,14 +1,19 @@
+# GRID::cart3d_x x (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 -1.35
+0 0 0 0 0 1 5 5 -1.05
+0 0 0 0 0 2 5 5 -0.75
+0 0 0 0 0 3 5 5 -0.45
+0 0 0 0 0 4 5 5 -0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 6 5 5 0.45
+0 0 0 0 0 7 5 5 0.75
+0 0 0 0 0 8 5 5 1.05
+0 0 0 0 0 9 5 5 1.35
+0 0 0 0 0 10 5 5 1.65
+
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_x.yl b/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_x.yl
index 3ba538438..74b67ba4b 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_x.yl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_x.yl
@@ -1,14 +1,19 @@
+# GRID::cart3d_x y (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 0.15
+0 0 0 0 0 5 1 5 0.15
+0 0 0 0 0 5 2 5 0.15
+0 0 0 0 0 5 3 5 0.15
+0 0 0 0 0 5 4 5 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 6 5 0.15
+0 0 0 0 0 5 7 5 0.15
+0 0 0 0 0 5 8 5 0.15
+0 0 0 0 0 5 9 5 0.15
+0 0 0 0 0 5 10 5 0.15
+
-"Time = 0.000000
--1.350000 0.1500000000000
--1.050000 0.1500000000000
--0.750000 0.1500000000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_x.zl b/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_x.zl
index 3ba538438..644637da4 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_x.zl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_x.zl
@@ -1,14 +1,19 @@
+# GRID::cart3d_x z (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 0.15
+0 0 0 0 0 5 5 1 0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 5 5 3 0.15
+0 0 0 0 0 5 5 4 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 5 6 0.15
+0 0 0 0 0 5 5 7 0.15
+0 0 0 0 0 5 5 8 0.15
+0 0 0 0 0 5 5 9 0.15
+0 0 0 0 0 5 5 10 0.15
+
-"Time = 0.000000
--1.350000 0.1500000000000
--1.050000 0.1500000000000
--0.750000 0.1500000000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_y.xl b/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_y.xl
index 3ba538438..50a646b41 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_y.xl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_y.xl
@@ -1,14 +1,19 @@
+# GRID::cart3d_y x (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 0.15
+0 0 0 0 0 1 5 5 0.15
+0 0 0 0 0 2 5 5 0.15
+0 0 0 0 0 3 5 5 0.15
+0 0 0 0 0 4 5 5 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 6 5 5 0.15
+0 0 0 0 0 7 5 5 0.15
+0 0 0 0 0 8 5 5 0.15
+0 0 0 0 0 9 5 5 0.15
+0 0 0 0 0 10 5 5 0.15
+
-"Time = 0.000000
--1.350000 0.1500000000000
--1.050000 0.1500000000000
--0.750000 0.1500000000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_y.yl b/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_y.yl
index a84cba46d..f473f055a 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_y.yl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_y.yl
@@ -1,14 +1,19 @@
+# GRID::cart3d_y y (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 -1.35
+0 0 0 0 0 5 1 5 -1.05
+0 0 0 0 0 5 2 5 -0.75
+0 0 0 0 0 5 3 5 -0.45
+0 0 0 0 0 5 4 5 -0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 6 5 0.45
+0 0 0 0 0 5 7 5 0.75
+0 0 0 0 0 5 8 5 1.05
+0 0 0 0 0 5 9 5 1.35
+0 0 0 0 0 5 10 5 1.65
+
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_y.zl b/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_y.zl
index 3ba538438..51935fcfc 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_y.zl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_y.zl
@@ -1,14 +1,19 @@
+# GRID::cart3d_y z (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 0.15
+0 0 0 0 0 5 5 1 0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 5 5 3 0.15
+0 0 0 0 0 5 5 4 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 5 6 0.15
+0 0 0 0 0 5 5 7 0.15
+0 0 0 0 0 5 5 8 0.15
+0 0 0 0 0 5 5 9 0.15
+0 0 0 0 0 5 5 10 0.15
+
-"Time = 0.000000
--1.350000 0.1500000000000
--1.050000 0.1500000000000
--0.750000 0.1500000000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_z.xl b/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_z.xl
index 3ba538438..1f08315f3 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_z.xl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_z.xl
@@ -1,14 +1,19 @@
+# GRID::cart3d_z x (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 0.15
+0 0 0 0 0 1 5 5 0.15
+0 0 0 0 0 2 5 5 0.15
+0 0 0 0 0 3 5 5 0.15
+0 0 0 0 0 4 5 5 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 6 5 5 0.15
+0 0 0 0 0 7 5 5 0.15
+0 0 0 0 0 8 5 5 0.15
+0 0 0 0 0 9 5 5 0.15
+0 0 0 0 0 10 5 5 0.15
+
-"Time = 0.000000
--1.350000 0.1500000000000
--1.050000 0.1500000000000
--0.750000 0.1500000000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_z.yl b/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_z.yl
index 3ba538438..1463c5179 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_z.yl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_z.yl
@@ -1,14 +1,19 @@
+# GRID::cart3d_z y (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 0.15
+0 0 0 0 0 5 1 5 0.15
+0 0 0 0 0 5 2 5 0.15
+0 0 0 0 0 5 3 5 0.15
+0 0 0 0 0 5 4 5 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 6 5 0.15
+0 0 0 0 0 5 7 5 0.15
+0 0 0 0 0 5 8 5 0.15
+0 0 0 0 0 5 9 5 0.15
+0 0 0 0 0 5 10 5 0.15
+
-"Time = 0.000000
--1.350000 0.1500000000000
--1.050000 0.1500000000000
--0.750000 0.1500000000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_z.zl b/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_z.zl
index a84cba46d..ad5c39153 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_z.zl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-eleven/cart3d_z.zl
@@ -1,14 +1,19 @@
+# GRID::cart3d_z z (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 -1.35
+0 0 0 0 0 5 5 1 -1.05
+0 0 0 0 0 5 5 2 -0.75
+0 0 0 0 0 5 5 3 -0.45
+0 0 0 0 0 5 5 4 -0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 5 6 0.45
+0 0 0 0 0 5 5 7 0.75
+0 0 0 0 0 5 5 8 1.05
+0 0 0 0 0 5 5 9 1.35
+0 0 0 0 0 5 5 10 1.65
+
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-eleven/spher3d_r.xl b/CarpetAttic/Cart3dTest/test/byspacing-eleven/spher3d_r.xl
index 2fd2aa27c..4ef5d491b 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-eleven/spher3d_r.xl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-eleven/spher3d_r.xl
@@ -1,14 +1,19 @@
+# GRID::spher3d_r x (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 1.36656503687164
+0 0 0 0 0 1 5 5 1.07121426428143
+0 0 0 0 0 2 5 5 0.779422863405995
+0 0 0 0 0 3 5 5 0.49749371855331
+0 0 0 0 0 4 5 5 0.259807621135332
+0 0 0 0 0 5 5 5 0.259807621135331
+0 0 0 0 0 6 5 5 0.49749371855331
+0 0 0 0 0 7 5 5 0.779422863405995
+0 0 0 0 0 8 5 5 1.07121426428143
+0 0 0 0 0 9 5 5 1.36656503687164
+0 0 0 0 0 10 5 5 1.66358047596141
+
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-eleven/spher3d_r.yl b/CarpetAttic/Cart3dTest/test/byspacing-eleven/spher3d_r.yl
index 2fd2aa27c..59495776e 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-eleven/spher3d_r.yl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-eleven/spher3d_r.yl
@@ -1,14 +1,19 @@
+# GRID::spher3d_r y (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 1.36656503687164
+0 0 0 0 0 5 1 5 1.07121426428143
+0 0 0 0 0 5 2 5 0.779422863405995
+0 0 0 0 0 5 3 5 0.49749371855331
+0 0 0 0 0 5 4 5 0.259807621135332
+0 0 0 0 0 5 5 5 0.259807621135331
+0 0 0 0 0 5 6 5 0.49749371855331
+0 0 0 0 0 5 7 5 0.779422863405995
+0 0 0 0 0 5 8 5 1.07121426428143
+0 0 0 0 0 5 9 5 1.36656503687164
+0 0 0 0 0 5 10 5 1.66358047596141
+
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-eleven/spher3d_r.zl b/CarpetAttic/Cart3dTest/test/byspacing-eleven/spher3d_r.zl
index 2fd2aa27c..8bc04312c 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-eleven/spher3d_r.zl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-eleven/spher3d_r.zl
@@ -1,14 +1,19 @@
+# GRID::spher3d_r z (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 1.36656503687164
+0 0 0 0 0 5 5 1 1.07121426428143
+0 0 0 0 0 5 5 2 0.779422863405995
+0 0 0 0 0 5 5 3 0.49749371855331
+0 0 0 0 0 5 5 4 0.259807621135332
+0 0 0 0 0 5 5 5 0.259807621135331
+0 0 0 0 0 5 5 6 0.49749371855331
+0 0 0 0 0 5 5 7 0.779422863405995
+0 0 0 0 0 5 5 8 1.07121426428143
+0 0 0 0 0 5 5 9 1.36656503687164
+0 0 0 0 0 5 5 10 1.66358047596141
+
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_x.xl b/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_x.xl
index 9b83c6a19..900564445 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_x.xl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_x.xl
@@ -1,13 +1,18 @@
+# GRID::cart3d_x x (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 0.15
+0 0 0 0 0 1 1 2 0.45
+0 0 0 0 0 2 1 2 0.75
+0 0 0 0 0 3 1 2 1.05
+0 0 0 0 0 4 1 2 1.35
+0 0 0 0 0 5 1 2 1.65
+0 0 0 0 0 6 1 2 1.95
+0 0 0 0 0 7 1 2 2.25
+0 0 0 0 0 8 1 2 2.55
+0 0 0 0 0 9 1 2 2.85
+
-"Time = 0.000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
-2.550000 2.5500000000000
-2.850000 2.8500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_x.yl b/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_x.yl
index 329cbd1ac..f38ec033f 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_x.yl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_x.yl
@@ -1,13 +1,18 @@
+# GRID::cart3d_x y (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 0.15
+0 0 0 0 0 0 1 2 0.15
+0 0 0 0 0 0 2 2 0.15
+0 0 0 0 0 0 3 2 0.15
+0 0 0 0 0 0 4 2 0.15
+0 0 0 0 0 0 5 2 0.15
+0 0 0 0 0 0 6 2 0.15
+0 0 0 0 0 0 7 2 0.15
+0 0 0 0 0 0 8 2 0.15
+0 0 0 0 0 0 9 2 0.15
+
-"Time = 0.000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
-1.950000 0.1500000000000
-2.250000 0.1500000000000
-2.550000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_x.zl b/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_x.zl
index b51feff56..b6a30ac0a 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_x.zl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_x.zl
@@ -1,13 +1,18 @@
+# GRID::cart3d_x z (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 0.15
+0 0 0 0 0 0 1 1 0.15
+0 0 0 0 0 0 1 2 0.15
+0 0 0 0 0 0 1 3 0.15
+0 0 0 0 0 0 1 4 0.15
+0 0 0 0 0 0 1 5 0.15
+0 0 0 0 0 0 1 6 0.15
+0 0 0 0 0 0 1 7 0.15
+0 0 0 0 0 0 1 8 0.15
+0 0 0 0 0 0 1 9 0.15
+
-"Time = 0.000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
-1.950000 0.1500000000000
-2.250000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_y.xl b/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_y.xl
index 02853bf46..d820ac099 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_y.xl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_y.xl
@@ -1,13 +1,18 @@
+# GRID::cart3d_y x (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 0.15
+0 0 0 0 0 1 1 2 0.15
+0 0 0 0 0 2 1 2 0.15
+0 0 0 0 0 3 1 2 0.15
+0 0 0 0 0 4 1 2 0.15
+0 0 0 0 0 5 1 2 0.15
+0 0 0 0 0 6 1 2 0.15
+0 0 0 0 0 7 1 2 0.15
+0 0 0 0 0 8 1 2 0.15
+0 0 0 0 0 9 1 2 0.15
+
-"Time = 0.000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
-1.950000 0.1500000000000
-2.250000 0.1500000000000
-2.550000 0.1500000000000
-2.850000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_y.yl b/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_y.yl
index 1774a1547..add6c62f4 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_y.yl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_y.yl
@@ -1,13 +1,18 @@
+# GRID::cart3d_y y (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 -0.15
+0 0 0 0 0 0 1 2 0.15
+0 0 0 0 0 0 2 2 0.45
+0 0 0 0 0 0 3 2 0.75
+0 0 0 0 0 0 4 2 1.05
+0 0 0 0 0 0 5 2 1.35
+0 0 0 0 0 0 6 2 1.65
+0 0 0 0 0 0 7 2 1.95
+0 0 0 0 0 0 8 2 2.25
+0 0 0 0 0 0 9 2 2.55
+
-"Time = 0.000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
-2.550000 2.5500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_y.zl b/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_y.zl
index b51feff56..b944c0b91 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_y.zl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_y.zl
@@ -1,13 +1,18 @@
+# GRID::cart3d_y z (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 0.15
+0 0 0 0 0 0 1 1 0.15
+0 0 0 0 0 0 1 2 0.15
+0 0 0 0 0 0 1 3 0.15
+0 0 0 0 0 0 1 4 0.15
+0 0 0 0 0 0 1 5 0.15
+0 0 0 0 0 0 1 6 0.15
+0 0 0 0 0 0 1 7 0.15
+0 0 0 0 0 0 1 8 0.15
+0 0 0 0 0 0 1 9 0.15
+
-"Time = 0.000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
-1.950000 0.1500000000000
-2.250000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_z.xl b/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_z.xl
index 5e91de92b..e84a2b123 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_z.xl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_z.xl
@@ -1,13 +1,18 @@
+# GRID::cart3d_z x (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 0.15
+0 0 0 0 0 1 1 2 0.15
+0 0 0 0 0 2 1 2 0.15
+0 0 0 0 0 3 1 2 0.15
+0 0 0 0 0 4 1 2 0.15
+0 0 0 0 0 5 1 2 0.15
+0 0 0 0 0 6 1 2 0.15
+0 0 0 0 0 7 1 2 0.15
+0 0 0 0 0 8 1 2 0.15
+0 0 0 0 0 9 1 2 0.15
+
-"Time = 0.000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
-2.850000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_z.yl b/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_z.yl
index e2990ba58..4f53de718 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_z.yl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_z.yl
@@ -1,13 +1,18 @@
+# GRID::cart3d_z y (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 0.15
+0 0 0 0 0 0 1 2 0.15
+0 0 0 0 0 0 2 2 0.15
+0 0 0 0 0 0 3 2 0.15
+0 0 0 0 0 0 4 2 0.15
+0 0 0 0 0 0 5 2 0.15
+0 0 0 0 0 0 6 2 0.15
+0 0 0 0 0 0 7 2 0.15
+0 0 0 0 0 0 8 2 0.15
+0 0 0 0 0 0 9 2 0.15
+
-"Time = 0.000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_z.zl b/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_z.zl
index 05235d48d..eca52f8d2 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_z.zl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-nonegative/cart3d_z.zl
@@ -1,13 +1,18 @@
+# GRID::cart3d_z z (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 -0.45
+0 0 0 0 0 0 1 1 -0.15
+0 0 0 0 0 0 1 2 0.15
+0 0 0 0 0 0 1 3 0.45
+0 0 0 0 0 0 1 4 0.75
+0 0 0 0 0 0 1 5 1.05
+0 0 0 0 0 0 1 6 1.35
+0 0 0 0 0 0 1 7 1.65
+0 0 0 0 0 0 1 8 1.95
+0 0 0 0 0 0 1 9 2.25
+
-"Time = 0.000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-nonegative/spher3d_r.xl b/CarpetAttic/Cart3dTest/test/byspacing-nonegative/spher3d_r.xl
index ccb5abae5..431d4bc2a 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-nonegative/spher3d_r.xl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-nonegative/spher3d_r.xl
@@ -1,13 +1,18 @@
+# GRID::spher3d_r x (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 0.259807621135332
+0 0 0 0 0 1 1 2 0.49749371855331
+0 0 0 0 0 2 1 2 0.779422863405995
+0 0 0 0 0 3 1 2 1.07121426428143
+0 0 0 0 0 4 1 2 1.36656503687164
+0 0 0 0 0 5 1 2 1.66358047596141
+0 0 0 0 0 6 1 2 1.9615045245933
+0 0 0 0 0 7 1 2 2.2599778759979
+0 0 0 0 0 8 1 2 2.5588083163848
+0 0 0 0 0 9 1 2 2.85788383248865
+
-"Time = 0.000000
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
-2.550000 2.5588083163848
-2.850000 2.8578838324886
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-nonegative/spher3d_r.yl b/CarpetAttic/Cart3dTest/test/byspacing-nonegative/spher3d_r.yl
index 0a89f5a85..75365dbdd 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-nonegative/spher3d_r.yl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-nonegative/spher3d_r.yl
@@ -1,13 +1,18 @@
+# GRID::spher3d_r y (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 0.259807621135332
+0 0 0 0 0 0 1 2 0.259807621135332
+0 0 0 0 0 0 2 2 0.49749371855331
+0 0 0 0 0 0 3 2 0.779422863405995
+0 0 0 0 0 0 4 2 1.07121426428143
+0 0 0 0 0 0 5 2 1.36656503687164
+0 0 0 0 0 0 6 2 1.66358047596141
+0 0 0 0 0 0 7 2 1.9615045245933
+0 0 0 0 0 0 8 2 2.2599778759979
+0 0 0 0 0 0 9 2 2.5588083163848
+
-"Time = 0.000000
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
-2.550000 2.5588083163848
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-nonegative/spher3d_r.zl b/CarpetAttic/Cart3dTest/test/byspacing-nonegative/spher3d_r.zl
index affb24569..e4b888973 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-nonegative/spher3d_r.zl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-nonegative/spher3d_r.zl
@@ -1,13 +1,18 @@
+# GRID::spher3d_r z (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 0.49749371855331
+0 0 0 0 0 0 1 1 0.259807621135332
+0 0 0 0 0 0 1 2 0.259807621135332
+0 0 0 0 0 0 1 3 0.49749371855331
+0 0 0 0 0 0 1 4 0.779422863405995
+0 0 0 0 0 0 1 5 1.07121426428143
+0 0 0 0 0 0 1 6 1.36656503687164
+0 0 0 0 0 0 1 7 1.66358047596141
+0 0 0 0 0 0 1 8 1.9615045245933
+0 0 0 0 0 0 1 9 2.2599778759979
+
-"Time = 0.000000
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_x.xl b/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_x.xl
index 00572722a..bc925f6c1 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_x.xl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_x.xl
@@ -1,13 +1,18 @@
+# GRID::cart3d_x x (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 0
+0 0 0 0 0 1 1 2 0.3
+0 0 0 0 0 2 1 2 0.6
+0 0 0 0 0 3 1 2 0.9
+0 0 0 0 0 4 1 2 1.2
+0 0 0 0 0 5 1 2 1.5
+0 0 0 0 0 6 1 2 1.8
+0 0 0 0 0 7 1 2 2.1
+0 0 0 0 0 8 1 2 2.4
+0 0 0 0 0 9 1 2 2.7
+
-"Time = 0.000000
-0.000000 0.0000000000000
-0.300000 0.3000000000000
-0.600000 0.6000000000000
-0.900000 0.9000000000000
-1.200000 1.2000000000000
-1.500000 1.5000000000000
-1.800000 1.8000000000000
-2.100000 2.1000000000000
-2.400000 2.4000000000000
-2.700000 2.7000000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_x.yl b/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_x.yl
index fd76508e9..fbe8fbec0 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_x.yl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_x.yl
@@ -1,13 +1,18 @@
+# GRID::cart3d_x y (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 0
+0 0 0 0 0 0 1 2 0
+0 0 0 0 0 0 2 2 0
+0 0 0 0 0 0 3 2 0
+0 0 0 0 0 0 4 2 0
+0 0 0 0 0 0 5 2 0
+0 0 0 0 0 0 6 2 0
+0 0 0 0 0 0 7 2 0
+0 0 0 0 0 0 8 2 0
+0 0 0 0 0 0 9 2 0
+
-"Time = 0.000000
--0.300000 0.0000000000000
-0.000000 0.0000000000000
-0.300000 0.0000000000000
-0.600000 0.0000000000000
-0.900000 0.0000000000000
-1.200000 0.0000000000000
-1.500000 0.0000000000000
-1.800000 0.0000000000000
-2.100000 0.0000000000000
-2.400000 0.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_x.zl b/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_x.zl
index 3d4846c3c..196d91dc1 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_x.zl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_x.zl
@@ -1,13 +1,18 @@
+# GRID::cart3d_x z (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 0
+0 0 0 0 0 0 1 1 0
+0 0 0 0 0 0 1 2 0
+0 0 0 0 0 0 1 3 0
+0 0 0 0 0 0 1 4 0
+0 0 0 0 0 0 1 5 0
+0 0 0 0 0 0 1 6 0
+0 0 0 0 0 0 1 7 0
+0 0 0 0 0 0 1 8 0
+0 0 0 0 0 0 1 9 0
+
-"Time = 0.000000
--0.600000 0.0000000000000
--0.300000 0.0000000000000
-0.000000 0.0000000000000
-0.300000 0.0000000000000
-0.600000 0.0000000000000
-0.900000 0.0000000000000
-1.200000 0.0000000000000
-1.500000 0.0000000000000
-1.800000 0.0000000000000
-2.100000 0.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_y.xl b/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_y.xl
index d6f38a8b6..a7d22bb90 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_y.xl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_y.xl
@@ -1,13 +1,18 @@
+# GRID::cart3d_y x (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 0
+0 0 0 0 0 1 1 2 0
+0 0 0 0 0 2 1 2 0
+0 0 0 0 0 3 1 2 0
+0 0 0 0 0 4 1 2 0
+0 0 0 0 0 5 1 2 0
+0 0 0 0 0 6 1 2 0
+0 0 0 0 0 7 1 2 0
+0 0 0 0 0 8 1 2 0
+0 0 0 0 0 9 1 2 0
+
-"Time = 0.000000
-0.000000 0.0000000000000
-0.300000 0.0000000000000
-0.600000 0.0000000000000
-0.900000 0.0000000000000
-1.200000 0.0000000000000
-1.500000 0.0000000000000
-1.800000 0.0000000000000
-2.100000 0.0000000000000
-2.400000 0.0000000000000
-2.700000 0.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_y.yl b/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_y.yl
index 7b89e6537..da656b1de 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_y.yl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_y.yl
@@ -1,13 +1,18 @@
+# GRID::cart3d_y y (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 -0.3
+0 0 0 0 0 0 1 2 0
+0 0 0 0 0 0 2 2 0.3
+0 0 0 0 0 0 3 2 0.6
+0 0 0 0 0 0 4 2 0.9
+0 0 0 0 0 0 5 2 1.2
+0 0 0 0 0 0 6 2 1.5
+0 0 0 0 0 0 7 2 1.8
+0 0 0 0 0 0 8 2 2.1
+0 0 0 0 0 0 9 2 2.4
+
-"Time = 0.000000
--0.300000 -0.3000000000000
-0.000000 0.0000000000000
-0.300000 0.3000000000000
-0.600000 0.6000000000000
-0.900000 0.9000000000000
-1.200000 1.2000000000000
-1.500000 1.5000000000000
-1.800000 1.8000000000000
-2.100000 2.1000000000000
-2.400000 2.4000000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_y.zl b/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_y.zl
index 3d4846c3c..f99f654cf 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_y.zl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_y.zl
@@ -1,13 +1,18 @@
+# GRID::cart3d_y z (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 0
+0 0 0 0 0 0 1 1 0
+0 0 0 0 0 0 1 2 0
+0 0 0 0 0 0 1 3 0
+0 0 0 0 0 0 1 4 0
+0 0 0 0 0 0 1 5 0
+0 0 0 0 0 0 1 6 0
+0 0 0 0 0 0 1 7 0
+0 0 0 0 0 0 1 8 0
+0 0 0 0 0 0 1 9 0
+
-"Time = 0.000000
--0.600000 0.0000000000000
--0.300000 0.0000000000000
-0.000000 0.0000000000000
-0.300000 0.0000000000000
-0.600000 0.0000000000000
-0.900000 0.0000000000000
-1.200000 0.0000000000000
-1.500000 0.0000000000000
-1.800000 0.0000000000000
-2.100000 0.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_z.xl b/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_z.xl
index d6f38a8b6..7cab41f96 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_z.xl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_z.xl
@@ -1,13 +1,18 @@
+# GRID::cart3d_z x (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 0
+0 0 0 0 0 1 1 2 0
+0 0 0 0 0 2 1 2 0
+0 0 0 0 0 3 1 2 0
+0 0 0 0 0 4 1 2 0
+0 0 0 0 0 5 1 2 0
+0 0 0 0 0 6 1 2 0
+0 0 0 0 0 7 1 2 0
+0 0 0 0 0 8 1 2 0
+0 0 0 0 0 9 1 2 0
+
-"Time = 0.000000
-0.000000 0.0000000000000
-0.300000 0.0000000000000
-0.600000 0.0000000000000
-0.900000 0.0000000000000
-1.200000 0.0000000000000
-1.500000 0.0000000000000
-1.800000 0.0000000000000
-2.100000 0.0000000000000
-2.400000 0.0000000000000
-2.700000 0.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_z.yl b/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_z.yl
index fd76508e9..12af98c0c 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_z.yl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_z.yl
@@ -1,13 +1,18 @@
+# GRID::cart3d_z y (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 0
+0 0 0 0 0 0 1 2 0
+0 0 0 0 0 0 2 2 0
+0 0 0 0 0 0 3 2 0
+0 0 0 0 0 0 4 2 0
+0 0 0 0 0 0 5 2 0
+0 0 0 0 0 0 6 2 0
+0 0 0 0 0 0 7 2 0
+0 0 0 0 0 0 8 2 0
+0 0 0 0 0 0 9 2 0
+
-"Time = 0.000000
--0.300000 0.0000000000000
-0.000000 0.0000000000000
-0.300000 0.0000000000000
-0.600000 0.0000000000000
-0.900000 0.0000000000000
-1.200000 0.0000000000000
-1.500000 0.0000000000000
-1.800000 0.0000000000000
-2.100000 0.0000000000000
-2.400000 0.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_z.zl b/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_z.zl
index 5d5518479..9d62560b2 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_z.zl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/cart3d_z.zl
@@ -1,13 +1,18 @@
+# GRID::cart3d_z z (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 -0.6
+0 0 0 0 0 0 1 1 -0.3
+0 0 0 0 0 0 1 2 0
+0 0 0 0 0 0 1 3 0.3
+0 0 0 0 0 0 1 4 0.6
+0 0 0 0 0 0 1 5 0.9
+0 0 0 0 0 0 1 6 1.2
+0 0 0 0 0 0 1 7 1.5
+0 0 0 0 0 0 1 8 1.8
+0 0 0 0 0 0 1 9 2.1
+
-"Time = 0.000000
--0.600000 -0.6000000000000
--0.300000 -0.3000000000000
-0.000000 0.0000000000000
-0.300000 0.3000000000000
-0.600000 0.6000000000000
-0.900000 0.9000000000000
-1.200000 1.2000000000000
-1.500000 1.5000000000000
-1.800000 1.8000000000000
-2.100000 2.1000000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/spher3d_r.xl b/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/spher3d_r.xl
index 00572722a..0fd7dc05f 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/spher3d_r.xl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/spher3d_r.xl
@@ -1,13 +1,18 @@
+# GRID::spher3d_r x (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 0
+0 0 0 0 0 1 1 2 0.3
+0 0 0 0 0 2 1 2 0.6
+0 0 0 0 0 3 1 2 0.9
+0 0 0 0 0 4 1 2 1.2
+0 0 0 0 0 5 1 2 1.5
+0 0 0 0 0 6 1 2 1.8
+0 0 0 0 0 7 1 2 2.1
+0 0 0 0 0 8 1 2 2.4
+0 0 0 0 0 9 1 2 2.7
+
-"Time = 0.000000
-0.000000 0.0000000000000
-0.300000 0.3000000000000
-0.600000 0.6000000000000
-0.900000 0.9000000000000
-1.200000 1.2000000000000
-1.500000 1.5000000000000
-1.800000 1.8000000000000
-2.100000 2.1000000000000
-2.400000 2.4000000000000
-2.700000 2.7000000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/spher3d_r.yl b/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/spher3d_r.yl
index a02e8cccf..24c93528c 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/spher3d_r.yl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/spher3d_r.yl
@@ -1,13 +1,18 @@
+# GRID::spher3d_r y (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 0.3
+0 0 0 0 0 0 1 2 0
+0 0 0 0 0 0 2 2 0.3
+0 0 0 0 0 0 3 2 0.6
+0 0 0 0 0 0 4 2 0.9
+0 0 0 0 0 0 5 2 1.2
+0 0 0 0 0 0 6 2 1.5
+0 0 0 0 0 0 7 2 1.8
+0 0 0 0 0 0 8 2 2.1
+0 0 0 0 0 0 9 2 2.4
+
-"Time = 0.000000
--0.300000 0.3000000000000
-0.000000 0.0000000000000
-0.300000 0.3000000000000
-0.600000 0.6000000000000
-0.900000 0.9000000000000
-1.200000 1.2000000000000
-1.500000 1.5000000000000
-1.800000 1.8000000000000
-2.100000 2.1000000000000
-2.400000 2.4000000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/spher3d_r.zl b/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/spher3d_r.zl
index 8b2f20d18..8469e050f 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/spher3d_r.zl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-withorigin-nonegative/spher3d_r.zl
@@ -1,13 +1,18 @@
+# GRID::spher3d_r z (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 0.6
+0 0 0 0 0 0 1 1 0.3
+0 0 0 0 0 0 1 2 0
+0 0 0 0 0 0 1 3 0.3
+0 0 0 0 0 0 1 4 0.6
+0 0 0 0 0 0 1 5 0.9
+0 0 0 0 0 0 1 6 1.2
+0 0 0 0 0 0 1 7 1.5
+0 0 0 0 0 0 1 8 1.8
+0 0 0 0 0 0 1 9 2.1
+
-"Time = 0.000000
--0.600000 0.6000000000000
--0.300000 0.3000000000000
-0.000000 0.0000000000000
-0.300000 0.3000000000000
-0.600000 0.6000000000000
-0.900000 0.9000000000000
-1.200000 1.2000000000000
-1.500000 1.5000000000000
-1.800000 1.8000000000000
-2.100000 2.1000000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_x.xl b/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_x.xl
index 7c7c562a0..d5d38cbbe 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_x.xl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_x.xl
@@ -1,13 +1,18 @@
+# GRID::cart3d_x x (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 -1.35
+0 0 0 0 0 1 5 5 -1.05
+0 0 0 0 0 2 5 5 -0.75
+0 0 0 0 0 3 5 5 -0.45
+0 0 0 0 0 4 5 5 -0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 6 5 5 0.45
+0 0 0 0 0 7 5 5 0.75
+0 0 0 0 0 8 5 5 1.05
+0 0 0 0 0 9 5 5 1.35
+
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_x.yl b/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_x.yl
index 5a5db3271..665b73681 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_x.yl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_x.yl
@@ -1,13 +1,18 @@
+# GRID::cart3d_x y (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 0.15
+0 0 0 0 0 5 1 5 0.15
+0 0 0 0 0 5 2 5 0.15
+0 0 0 0 0 5 3 5 0.15
+0 0 0 0 0 5 4 5 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 6 5 0.15
+0 0 0 0 0 5 7 5 0.15
+0 0 0 0 0 5 8 5 0.15
+0 0 0 0 0 5 9 5 0.15
+
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_x.zl b/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_x.zl
index 5a5db3271..09ee6b874 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_x.zl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_x.zl
@@ -1,13 +1,18 @@
+# GRID::cart3d_x z (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 0.15
+0 0 0 0 0 5 5 1 0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 5 5 3 0.15
+0 0 0 0 0 5 5 4 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 5 6 0.15
+0 0 0 0 0 5 5 7 0.15
+0 0 0 0 0 5 5 8 0.15
+0 0 0 0 0 5 5 9 0.15
+
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_y.xl b/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_y.xl
index 5a5db3271..37fcce4ba 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_y.xl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_y.xl
@@ -1,13 +1,18 @@
+# GRID::cart3d_y x (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 0.15
+0 0 0 0 0 1 5 5 0.15
+0 0 0 0 0 2 5 5 0.15
+0 0 0 0 0 3 5 5 0.15
+0 0 0 0 0 4 5 5 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 6 5 5 0.15
+0 0 0 0 0 7 5 5 0.15
+0 0 0 0 0 8 5 5 0.15
+0 0 0 0 0 9 5 5 0.15
+
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_y.yl b/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_y.yl
index 7c7c562a0..5265df213 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_y.yl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_y.yl
@@ -1,13 +1,18 @@
+# GRID::cart3d_y y (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 -1.35
+0 0 0 0 0 5 1 5 -1.05
+0 0 0 0 0 5 2 5 -0.75
+0 0 0 0 0 5 3 5 -0.45
+0 0 0 0 0 5 4 5 -0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 6 5 0.45
+0 0 0 0 0 5 7 5 0.75
+0 0 0 0 0 5 8 5 1.05
+0 0 0 0 0 5 9 5 1.35
+
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_y.zl b/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_y.zl
index 5a5db3271..e6cc63da4 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_y.zl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_y.zl
@@ -1,13 +1,18 @@
+# GRID::cart3d_y z (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 0.15
+0 0 0 0 0 5 5 1 0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 5 5 3 0.15
+0 0 0 0 0 5 5 4 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 5 6 0.15
+0 0 0 0 0 5 5 7 0.15
+0 0 0 0 0 5 5 8 0.15
+0 0 0 0 0 5 5 9 0.15
+
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_z.xl b/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_z.xl
index 5a5db3271..794ff4bda 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_z.xl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_z.xl
@@ -1,13 +1,18 @@
+# GRID::cart3d_z x (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 0.15
+0 0 0 0 0 1 5 5 0.15
+0 0 0 0 0 2 5 5 0.15
+0 0 0 0 0 3 5 5 0.15
+0 0 0 0 0 4 5 5 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 6 5 5 0.15
+0 0 0 0 0 7 5 5 0.15
+0 0 0 0 0 8 5 5 0.15
+0 0 0 0 0 9 5 5 0.15
+
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_z.yl b/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_z.yl
index 5a5db3271..40b7c7597 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_z.yl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_z.yl
@@ -1,13 +1,18 @@
+# GRID::cart3d_z y (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 0.15
+0 0 0 0 0 5 1 5 0.15
+0 0 0 0 0 5 2 5 0.15
+0 0 0 0 0 5 3 5 0.15
+0 0 0 0 0 5 4 5 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 6 5 0.15
+0 0 0 0 0 5 7 5 0.15
+0 0 0 0 0 5 8 5 0.15
+0 0 0 0 0 5 9 5 0.15
+
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_z.zl b/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_z.zl
index 7c7c562a0..871d1c096 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_z.zl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-withorigin/cart3d_z.zl
@@ -1,13 +1,18 @@
+# GRID::cart3d_z z (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 -1.35
+0 0 0 0 0 5 5 1 -1.05
+0 0 0 0 0 5 5 2 -0.75
+0 0 0 0 0 5 5 3 -0.45
+0 0 0 0 0 5 5 4 -0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 5 6 0.45
+0 0 0 0 0 5 5 7 0.75
+0 0 0 0 0 5 5 8 1.05
+0 0 0 0 0 5 5 9 1.35
+
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-withorigin/spher3d_r.xl b/CarpetAttic/Cart3dTest/test/byspacing-withorigin/spher3d_r.xl
index 55d397432..276828ef4 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-withorigin/spher3d_r.xl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-withorigin/spher3d_r.xl
@@ -1,13 +1,18 @@
+# GRID::spher3d_r x (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 1.36656503687164
+0 0 0 0 0 1 5 5 1.07121426428143
+0 0 0 0 0 2 5 5 0.779422863405995
+0 0 0 0 0 3 5 5 0.49749371855331
+0 0 0 0 0 4 5 5 0.259807621135332
+0 0 0 0 0 5 5 5 0.259807621135332
+0 0 0 0 0 6 5 5 0.49749371855331
+0 0 0 0 0 7 5 5 0.779422863405995
+0 0 0 0 0 8 5 5 1.07121426428143
+0 0 0 0 0 9 5 5 1.36656503687164
+
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-withorigin/spher3d_r.yl b/CarpetAttic/Cart3dTest/test/byspacing-withorigin/spher3d_r.yl
index 55d397432..4347028ff 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-withorigin/spher3d_r.yl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-withorigin/spher3d_r.yl
@@ -1,13 +1,18 @@
+# GRID::spher3d_r y (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 1.36656503687164
+0 0 0 0 0 5 1 5 1.07121426428143
+0 0 0 0 0 5 2 5 0.779422863405995
+0 0 0 0 0 5 3 5 0.49749371855331
+0 0 0 0 0 5 4 5 0.259807621135332
+0 0 0 0 0 5 5 5 0.259807621135332
+0 0 0 0 0 5 6 5 0.49749371855331
+0 0 0 0 0 5 7 5 0.779422863405995
+0 0 0 0 0 5 8 5 1.07121426428143
+0 0 0 0 0 5 9 5 1.36656503687164
+
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
diff --git a/CarpetAttic/Cart3dTest/test/byspacing-withorigin/spher3d_r.zl b/CarpetAttic/Cart3dTest/test/byspacing-withorigin/spher3d_r.zl
index 55d397432..bb92445e0 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing-withorigin/spher3d_r.zl
+++ b/CarpetAttic/Cart3dTest/test/byspacing-withorigin/spher3d_r.zl
@@ -1,13 +1,18 @@
+# GRID::spher3d_r z (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 1.36656503687164
+0 0 0 0 0 5 5 1 1.07121426428143
+0 0 0 0 0 5 5 2 0.779422863405995
+0 0 0 0 0 5 5 3 0.49749371855331
+0 0 0 0 0 5 5 4 0.259807621135332
+0 0 0 0 0 5 5 5 0.259807621135332
+0 0 0 0 0 5 5 6 0.49749371855331
+0 0 0 0 0 5 5 7 0.779422863405995
+0 0 0 0 0 5 5 8 1.07121426428143
+0 0 0 0 0 5 5 9 1.36656503687164
+
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
diff --git a/CarpetAttic/Cart3dTest/test/byspacing/cart3d_x.xl b/CarpetAttic/Cart3dTest/test/byspacing/cart3d_x.xl
index 7c7c562a0..d5d38cbbe 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing/cart3d_x.xl
+++ b/CarpetAttic/Cart3dTest/test/byspacing/cart3d_x.xl
@@ -1,13 +1,18 @@
+# GRID::cart3d_x x (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 -1.35
+0 0 0 0 0 1 5 5 -1.05
+0 0 0 0 0 2 5 5 -0.75
+0 0 0 0 0 3 5 5 -0.45
+0 0 0 0 0 4 5 5 -0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 6 5 5 0.45
+0 0 0 0 0 7 5 5 0.75
+0 0 0 0 0 8 5 5 1.05
+0 0 0 0 0 9 5 5 1.35
+
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing/cart3d_x.yl b/CarpetAttic/Cart3dTest/test/byspacing/cart3d_x.yl
index 5a5db3271..665b73681 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing/cart3d_x.yl
+++ b/CarpetAttic/Cart3dTest/test/byspacing/cart3d_x.yl
@@ -1,13 +1,18 @@
+# GRID::cart3d_x y (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 0.15
+0 0 0 0 0 5 1 5 0.15
+0 0 0 0 0 5 2 5 0.15
+0 0 0 0 0 5 3 5 0.15
+0 0 0 0 0 5 4 5 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 6 5 0.15
+0 0 0 0 0 5 7 5 0.15
+0 0 0 0 0 5 8 5 0.15
+0 0 0 0 0 5 9 5 0.15
+
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing/cart3d_x.zl b/CarpetAttic/Cart3dTest/test/byspacing/cart3d_x.zl
index 5a5db3271..09ee6b874 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing/cart3d_x.zl
+++ b/CarpetAttic/Cart3dTest/test/byspacing/cart3d_x.zl
@@ -1,13 +1,18 @@
+# GRID::cart3d_x z (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 0.15
+0 0 0 0 0 5 5 1 0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 5 5 3 0.15
+0 0 0 0 0 5 5 4 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 5 6 0.15
+0 0 0 0 0 5 5 7 0.15
+0 0 0 0 0 5 5 8 0.15
+0 0 0 0 0 5 5 9 0.15
+
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing/cart3d_y.xl b/CarpetAttic/Cart3dTest/test/byspacing/cart3d_y.xl
index 5a5db3271..37fcce4ba 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing/cart3d_y.xl
+++ b/CarpetAttic/Cart3dTest/test/byspacing/cart3d_y.xl
@@ -1,13 +1,18 @@
+# GRID::cart3d_y x (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 0.15
+0 0 0 0 0 1 5 5 0.15
+0 0 0 0 0 2 5 5 0.15
+0 0 0 0 0 3 5 5 0.15
+0 0 0 0 0 4 5 5 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 6 5 5 0.15
+0 0 0 0 0 7 5 5 0.15
+0 0 0 0 0 8 5 5 0.15
+0 0 0 0 0 9 5 5 0.15
+
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing/cart3d_y.yl b/CarpetAttic/Cart3dTest/test/byspacing/cart3d_y.yl
index 7c7c562a0..5265df213 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing/cart3d_y.yl
+++ b/CarpetAttic/Cart3dTest/test/byspacing/cart3d_y.yl
@@ -1,13 +1,18 @@
+# GRID::cart3d_y y (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 -1.35
+0 0 0 0 0 5 1 5 -1.05
+0 0 0 0 0 5 2 5 -0.75
+0 0 0 0 0 5 3 5 -0.45
+0 0 0 0 0 5 4 5 -0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 6 5 0.45
+0 0 0 0 0 5 7 5 0.75
+0 0 0 0 0 5 8 5 1.05
+0 0 0 0 0 5 9 5 1.35
+
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing/cart3d_y.zl b/CarpetAttic/Cart3dTest/test/byspacing/cart3d_y.zl
index 5a5db3271..e6cc63da4 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing/cart3d_y.zl
+++ b/CarpetAttic/Cart3dTest/test/byspacing/cart3d_y.zl
@@ -1,13 +1,18 @@
+# GRID::cart3d_y z (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 0.15
+0 0 0 0 0 5 5 1 0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 5 5 3 0.15
+0 0 0 0 0 5 5 4 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 5 6 0.15
+0 0 0 0 0 5 5 7 0.15
+0 0 0 0 0 5 5 8 0.15
+0 0 0 0 0 5 5 9 0.15
+
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing/cart3d_z.xl b/CarpetAttic/Cart3dTest/test/byspacing/cart3d_z.xl
index 5a5db3271..794ff4bda 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing/cart3d_z.xl
+++ b/CarpetAttic/Cart3dTest/test/byspacing/cart3d_z.xl
@@ -1,13 +1,18 @@
+# GRID::cart3d_z x (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 0.15
+0 0 0 0 0 1 5 5 0.15
+0 0 0 0 0 2 5 5 0.15
+0 0 0 0 0 3 5 5 0.15
+0 0 0 0 0 4 5 5 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 6 5 5 0.15
+0 0 0 0 0 7 5 5 0.15
+0 0 0 0 0 8 5 5 0.15
+0 0 0 0 0 9 5 5 0.15
+
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing/cart3d_z.yl b/CarpetAttic/Cart3dTest/test/byspacing/cart3d_z.yl
index 5a5db3271..40b7c7597 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing/cart3d_z.yl
+++ b/CarpetAttic/Cart3dTest/test/byspacing/cart3d_z.yl
@@ -1,13 +1,18 @@
+# GRID::cart3d_z y (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 0.15
+0 0 0 0 0 5 1 5 0.15
+0 0 0 0 0 5 2 5 0.15
+0 0 0 0 0 5 3 5 0.15
+0 0 0 0 0 5 4 5 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 6 5 0.15
+0 0 0 0 0 5 7 5 0.15
+0 0 0 0 0 5 8 5 0.15
+0 0 0 0 0 5 9 5 0.15
+
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing/cart3d_z.zl b/CarpetAttic/Cart3dTest/test/byspacing/cart3d_z.zl
index 7c7c562a0..871d1c096 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing/cart3d_z.zl
+++ b/CarpetAttic/Cart3dTest/test/byspacing/cart3d_z.zl
@@ -1,13 +1,18 @@
+# GRID::cart3d_z z (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 -1.35
+0 0 0 0 0 5 5 1 -1.05
+0 0 0 0 0 5 5 2 -0.75
+0 0 0 0 0 5 5 3 -0.45
+0 0 0 0 0 5 5 4 -0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 5 6 0.45
+0 0 0 0 0 5 5 7 0.75
+0 0 0 0 0 5 5 8 1.05
+0 0 0 0 0 5 5 9 1.35
+
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
diff --git a/CarpetAttic/Cart3dTest/test/byspacing/spher3d_r.xl b/CarpetAttic/Cart3dTest/test/byspacing/spher3d_r.xl
index 55d397432..276828ef4 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing/spher3d_r.xl
+++ b/CarpetAttic/Cart3dTest/test/byspacing/spher3d_r.xl
@@ -1,13 +1,18 @@
+# GRID::spher3d_r x (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 1.36656503687164
+0 0 0 0 0 1 5 5 1.07121426428143
+0 0 0 0 0 2 5 5 0.779422863405995
+0 0 0 0 0 3 5 5 0.49749371855331
+0 0 0 0 0 4 5 5 0.259807621135332
+0 0 0 0 0 5 5 5 0.259807621135332
+0 0 0 0 0 6 5 5 0.49749371855331
+0 0 0 0 0 7 5 5 0.779422863405995
+0 0 0 0 0 8 5 5 1.07121426428143
+0 0 0 0 0 9 5 5 1.36656503687164
+
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
diff --git a/CarpetAttic/Cart3dTest/test/byspacing/spher3d_r.yl b/CarpetAttic/Cart3dTest/test/byspacing/spher3d_r.yl
index 55d397432..4347028ff 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing/spher3d_r.yl
+++ b/CarpetAttic/Cart3dTest/test/byspacing/spher3d_r.yl
@@ -1,13 +1,18 @@
+# GRID::spher3d_r y (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 1.36656503687164
+0 0 0 0 0 5 1 5 1.07121426428143
+0 0 0 0 0 5 2 5 0.779422863405995
+0 0 0 0 0 5 3 5 0.49749371855331
+0 0 0 0 0 5 4 5 0.259807621135332
+0 0 0 0 0 5 5 5 0.259807621135332
+0 0 0 0 0 5 6 5 0.49749371855331
+0 0 0 0 0 5 7 5 0.779422863405995
+0 0 0 0 0 5 8 5 1.07121426428143
+0 0 0 0 0 5 9 5 1.36656503687164
+
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
diff --git a/CarpetAttic/Cart3dTest/test/byspacing/spher3d_r.zl b/CarpetAttic/Cart3dTest/test/byspacing/spher3d_r.zl
index 55d397432..bb92445e0 100644
--- a/CarpetAttic/Cart3dTest/test/byspacing/spher3d_r.zl
+++ b/CarpetAttic/Cart3dTest/test/byspacing/spher3d_r.zl
@@ -1,13 +1,18 @@
+# GRID::spher3d_r z (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 1.36656503687164
+0 0 0 0 0 5 5 1 1.07121426428143
+0 0 0 0 0 5 5 2 0.779422863405995
+0 0 0 0 0 5 5 3 0.49749371855331
+0 0 0 0 0 5 5 4 0.259807621135332
+0 0 0 0 0 5 5 5 0.259807621135332
+0 0 0 0 0 5 5 6 0.49749371855331
+0 0 0 0 0 5 5 7 0.779422863405995
+0 0 0 0 0 5 5 8 1.07121426428143
+0 0 0 0 0 5 5 9 1.36656503687164
+
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
diff --git a/CarpetAttic/Cart3dTest/test/eleven/cart3d_x.xl b/CarpetAttic/Cart3dTest/test/eleven/cart3d_x.xl
index c369c1d84..5849f3b54 100644
--- a/CarpetAttic/Cart3dTest/test/eleven/cart3d_x.xl
+++ b/CarpetAttic/Cart3dTest/test/eleven/cart3d_x.xl
@@ -1,14 +1,19 @@
+# GRID::cart3d_x x (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 -0.5
+0 0 0 0 0 1 5 5 -0.4
+0 0 0 0 0 2 5 5 -0.3
+0 0 0 0 0 3 5 5 -0.2
+0 0 0 0 0 4 5 5 -0.1
+0 0 0 0 0 5 5 5 2.77555756156289e-17
+0 0 0 0 0 6 5 5 0.1
+0 0 0 0 0 7 5 5 0.2
+0 0 0 0 0 8 5 5 0.3
+0 0 0 0 0 9 5 5 0.4
+0 0 0 0 0 10 5 5 0.5
+
-"Time = 0.000000
--0.500000 -0.5000000000000
--0.400000 -0.4000000000000
--0.300000 -0.3000000000000
--0.200000 -0.2000000000000
--0.100000 -0.1000000000000
-0.000000 0.0000000000000
-0.100000 0.1000000000000
-0.200000 0.2000000000000
-0.300000 0.3000000000000
-0.400000 0.4000000000000
-0.500000 0.5000000000000
diff --git a/CarpetAttic/Cart3dTest/test/eleven/cart3d_x.yl b/CarpetAttic/Cart3dTest/test/eleven/cart3d_x.yl
index a9f9dd84a..5f4dd9b6f 100644
--- a/CarpetAttic/Cart3dTest/test/eleven/cart3d_x.yl
+++ b/CarpetAttic/Cart3dTest/test/eleven/cart3d_x.yl
@@ -1,14 +1,19 @@
+# GRID::cart3d_x y (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 2.77555756156289e-17
+0 0 0 0 0 5 1 5 2.77555756156289e-17
+0 0 0 0 0 5 2 5 2.77555756156289e-17
+0 0 0 0 0 5 3 5 2.77555756156289e-17
+0 0 0 0 0 5 4 5 2.77555756156289e-17
+0 0 0 0 0 5 5 5 2.77555756156289e-17
+0 0 0 0 0 5 6 5 2.77555756156289e-17
+0 0 0 0 0 5 7 5 2.77555756156289e-17
+0 0 0 0 0 5 8 5 2.77555756156289e-17
+0 0 0 0 0 5 9 5 2.77555756156289e-17
+0 0 0 0 0 5 10 5 2.77555756156289e-17
+
-"Time = 0.000000
--0.500000 0.0000000000000
--0.400000 0.0000000000000
--0.300000 0.0000000000000
--0.200000 0.0000000000000
--0.100000 0.0000000000000
-0.000000 0.0000000000000
-0.100000 0.0000000000000
-0.200000 0.0000000000000
-0.300000 0.0000000000000
-0.400000 0.0000000000000
-0.500000 0.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/eleven/cart3d_x.zl b/CarpetAttic/Cart3dTest/test/eleven/cart3d_x.zl
index a9f9dd84a..d7f99e14a 100644
--- a/CarpetAttic/Cart3dTest/test/eleven/cart3d_x.zl
+++ b/CarpetAttic/Cart3dTest/test/eleven/cart3d_x.zl
@@ -1,14 +1,19 @@
+# GRID::cart3d_x z (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 2.77555756156289e-17
+0 0 0 0 0 5 5 1 2.77555756156289e-17
+0 0 0 0 0 5 5 2 2.77555756156289e-17
+0 0 0 0 0 5 5 3 2.77555756156289e-17
+0 0 0 0 0 5 5 4 2.77555756156289e-17
+0 0 0 0 0 5 5 5 2.77555756156289e-17
+0 0 0 0 0 5 5 6 2.77555756156289e-17
+0 0 0 0 0 5 5 7 2.77555756156289e-17
+0 0 0 0 0 5 5 8 2.77555756156289e-17
+0 0 0 0 0 5 5 9 2.77555756156289e-17
+0 0 0 0 0 5 5 10 2.77555756156289e-17
+
-"Time = 0.000000
--0.500000 0.0000000000000
--0.400000 0.0000000000000
--0.300000 0.0000000000000
--0.200000 0.0000000000000
--0.100000 0.0000000000000
-0.000000 0.0000000000000
-0.100000 0.0000000000000
-0.200000 0.0000000000000
-0.300000 0.0000000000000
-0.400000 0.0000000000000
-0.500000 0.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/eleven/cart3d_y.xl b/CarpetAttic/Cart3dTest/test/eleven/cart3d_y.xl
index a9f9dd84a..c68100399 100644
--- a/CarpetAttic/Cart3dTest/test/eleven/cart3d_y.xl
+++ b/CarpetAttic/Cart3dTest/test/eleven/cart3d_y.xl
@@ -1,14 +1,19 @@
+# GRID::cart3d_y x (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 2.77555756156289e-17
+0 0 0 0 0 1 5 5 2.77555756156289e-17
+0 0 0 0 0 2 5 5 2.77555756156289e-17
+0 0 0 0 0 3 5 5 2.77555756156289e-17
+0 0 0 0 0 4 5 5 2.77555756156289e-17
+0 0 0 0 0 5 5 5 2.77555756156289e-17
+0 0 0 0 0 6 5 5 2.77555756156289e-17
+0 0 0 0 0 7 5 5 2.77555756156289e-17
+0 0 0 0 0 8 5 5 2.77555756156289e-17
+0 0 0 0 0 9 5 5 2.77555756156289e-17
+0 0 0 0 0 10 5 5 2.77555756156289e-17
+
-"Time = 0.000000
--0.500000 0.0000000000000
--0.400000 0.0000000000000
--0.300000 0.0000000000000
--0.200000 0.0000000000000
--0.100000 0.0000000000000
-0.000000 0.0000000000000
-0.100000 0.0000000000000
-0.200000 0.0000000000000
-0.300000 0.0000000000000
-0.400000 0.0000000000000
-0.500000 0.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/eleven/cart3d_y.yl b/CarpetAttic/Cart3dTest/test/eleven/cart3d_y.yl
index c369c1d84..32890fcac 100644
--- a/CarpetAttic/Cart3dTest/test/eleven/cart3d_y.yl
+++ b/CarpetAttic/Cart3dTest/test/eleven/cart3d_y.yl
@@ -1,14 +1,19 @@
+# GRID::cart3d_y y (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 -0.5
+0 0 0 0 0 5 1 5 -0.4
+0 0 0 0 0 5 2 5 -0.3
+0 0 0 0 0 5 3 5 -0.2
+0 0 0 0 0 5 4 5 -0.1
+0 0 0 0 0 5 5 5 2.77555756156289e-17
+0 0 0 0 0 5 6 5 0.1
+0 0 0 0 0 5 7 5 0.2
+0 0 0 0 0 5 8 5 0.3
+0 0 0 0 0 5 9 5 0.4
+0 0 0 0 0 5 10 5 0.5
+
-"Time = 0.000000
--0.500000 -0.5000000000000
--0.400000 -0.4000000000000
--0.300000 -0.3000000000000
--0.200000 -0.2000000000000
--0.100000 -0.1000000000000
-0.000000 0.0000000000000
-0.100000 0.1000000000000
-0.200000 0.2000000000000
-0.300000 0.3000000000000
-0.400000 0.4000000000000
-0.500000 0.5000000000000
diff --git a/CarpetAttic/Cart3dTest/test/eleven/cart3d_y.zl b/CarpetAttic/Cart3dTest/test/eleven/cart3d_y.zl
index a9f9dd84a..8904a610c 100644
--- a/CarpetAttic/Cart3dTest/test/eleven/cart3d_y.zl
+++ b/CarpetAttic/Cart3dTest/test/eleven/cart3d_y.zl
@@ -1,14 +1,19 @@
+# GRID::cart3d_y z (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 2.77555756156289e-17
+0 0 0 0 0 5 5 1 2.77555756156289e-17
+0 0 0 0 0 5 5 2 2.77555756156289e-17
+0 0 0 0 0 5 5 3 2.77555756156289e-17
+0 0 0 0 0 5 5 4 2.77555756156289e-17
+0 0 0 0 0 5 5 5 2.77555756156289e-17
+0 0 0 0 0 5 5 6 2.77555756156289e-17
+0 0 0 0 0 5 5 7 2.77555756156289e-17
+0 0 0 0 0 5 5 8 2.77555756156289e-17
+0 0 0 0 0 5 5 9 2.77555756156289e-17
+0 0 0 0 0 5 5 10 2.77555756156289e-17
+
-"Time = 0.000000
--0.500000 0.0000000000000
--0.400000 0.0000000000000
--0.300000 0.0000000000000
--0.200000 0.0000000000000
--0.100000 0.0000000000000
-0.000000 0.0000000000000
-0.100000 0.0000000000000
-0.200000 0.0000000000000
-0.300000 0.0000000000000
-0.400000 0.0000000000000
-0.500000 0.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/eleven/cart3d_z.xl b/CarpetAttic/Cart3dTest/test/eleven/cart3d_z.xl
index a9f9dd84a..c2642a797 100644
--- a/CarpetAttic/Cart3dTest/test/eleven/cart3d_z.xl
+++ b/CarpetAttic/Cart3dTest/test/eleven/cart3d_z.xl
@@ -1,14 +1,19 @@
+# GRID::cart3d_z x (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 2.77555756156289e-17
+0 0 0 0 0 1 5 5 2.77555756156289e-17
+0 0 0 0 0 2 5 5 2.77555756156289e-17
+0 0 0 0 0 3 5 5 2.77555756156289e-17
+0 0 0 0 0 4 5 5 2.77555756156289e-17
+0 0 0 0 0 5 5 5 2.77555756156289e-17
+0 0 0 0 0 6 5 5 2.77555756156289e-17
+0 0 0 0 0 7 5 5 2.77555756156289e-17
+0 0 0 0 0 8 5 5 2.77555756156289e-17
+0 0 0 0 0 9 5 5 2.77555756156289e-17
+0 0 0 0 0 10 5 5 2.77555756156289e-17
+
-"Time = 0.000000
--0.500000 0.0000000000000
--0.400000 0.0000000000000
--0.300000 0.0000000000000
--0.200000 0.0000000000000
--0.100000 0.0000000000000
-0.000000 0.0000000000000
-0.100000 0.0000000000000
-0.200000 0.0000000000000
-0.300000 0.0000000000000
-0.400000 0.0000000000000
-0.500000 0.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/eleven/cart3d_z.yl b/CarpetAttic/Cart3dTest/test/eleven/cart3d_z.yl
index a9f9dd84a..9c4f6763f 100644
--- a/CarpetAttic/Cart3dTest/test/eleven/cart3d_z.yl
+++ b/CarpetAttic/Cart3dTest/test/eleven/cart3d_z.yl
@@ -1,14 +1,19 @@
+# GRID::cart3d_z y (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 2.77555756156289e-17
+0 0 0 0 0 5 1 5 2.77555756156289e-17
+0 0 0 0 0 5 2 5 2.77555756156289e-17
+0 0 0 0 0 5 3 5 2.77555756156289e-17
+0 0 0 0 0 5 4 5 2.77555756156289e-17
+0 0 0 0 0 5 5 5 2.77555756156289e-17
+0 0 0 0 0 5 6 5 2.77555756156289e-17
+0 0 0 0 0 5 7 5 2.77555756156289e-17
+0 0 0 0 0 5 8 5 2.77555756156289e-17
+0 0 0 0 0 5 9 5 2.77555756156289e-17
+0 0 0 0 0 5 10 5 2.77555756156289e-17
+
-"Time = 0.000000
--0.500000 0.0000000000000
--0.400000 0.0000000000000
--0.300000 0.0000000000000
--0.200000 0.0000000000000
--0.100000 0.0000000000000
-0.000000 0.0000000000000
-0.100000 0.0000000000000
-0.200000 0.0000000000000
-0.300000 0.0000000000000
-0.400000 0.0000000000000
-0.500000 0.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/eleven/cart3d_z.zl b/CarpetAttic/Cart3dTest/test/eleven/cart3d_z.zl
index c369c1d84..341843533 100644
--- a/CarpetAttic/Cart3dTest/test/eleven/cart3d_z.zl
+++ b/CarpetAttic/Cart3dTest/test/eleven/cart3d_z.zl
@@ -1,14 +1,19 @@
+# GRID::cart3d_z z (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 -0.5
+0 0 0 0 0 5 5 1 -0.4
+0 0 0 0 0 5 5 2 -0.3
+0 0 0 0 0 5 5 3 -0.2
+0 0 0 0 0 5 5 4 -0.1
+0 0 0 0 0 5 5 5 2.77555756156289e-17
+0 0 0 0 0 5 5 6 0.1
+0 0 0 0 0 5 5 7 0.2
+0 0 0 0 0 5 5 8 0.3
+0 0 0 0 0 5 5 9 0.4
+0 0 0 0 0 5 5 10 0.5
+
-"Time = 0.000000
--0.500000 -0.5000000000000
--0.400000 -0.4000000000000
--0.300000 -0.3000000000000
--0.200000 -0.2000000000000
--0.100000 -0.1000000000000
-0.000000 0.0000000000000
-0.100000 0.1000000000000
-0.200000 0.2000000000000
-0.300000 0.3000000000000
-0.400000 0.4000000000000
-0.500000 0.5000000000000
diff --git a/CarpetAttic/Cart3dTest/test/eleven/spher3d_r.xl b/CarpetAttic/Cart3dTest/test/eleven/spher3d_r.xl
index 9cb5329c9..33caa2b0d 100644
--- a/CarpetAttic/Cart3dTest/test/eleven/spher3d_r.xl
+++ b/CarpetAttic/Cart3dTest/test/eleven/spher3d_r.xl
@@ -1,14 +1,19 @@
+# GRID::spher3d_r x (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 0.5
+0 0 0 0 0 1 5 5 0.4
+0 0 0 0 0 2 5 5 0.3
+0 0 0 0 0 3 5 5 0.2
+0 0 0 0 0 4 5 5 0.1
+0 0 0 0 0 5 5 5 4.80740671595891e-17
+0 0 0 0 0 6 5 5 0.1
+0 0 0 0 0 7 5 5 0.2
+0 0 0 0 0 8 5 5 0.3
+0 0 0 0 0 9 5 5 0.4
+0 0 0 0 0 10 5 5 0.5
+
-"Time = 0.000000
--0.500000 0.5000000000000
--0.400000 0.4000000000000
--0.300000 0.3000000000000
--0.200000 0.2000000000000
--0.100000 0.1000000000000
-0.000000 0.0000000000000
-0.100000 0.1000000000000
-0.200000 0.2000000000000
-0.300000 0.3000000000000
-0.400000 0.4000000000000
-0.500000 0.5000000000000
diff --git a/CarpetAttic/Cart3dTest/test/eleven/spher3d_r.yl b/CarpetAttic/Cart3dTest/test/eleven/spher3d_r.yl
index 9cb5329c9..6e9b1925c 100644
--- a/CarpetAttic/Cart3dTest/test/eleven/spher3d_r.yl
+++ b/CarpetAttic/Cart3dTest/test/eleven/spher3d_r.yl
@@ -1,14 +1,19 @@
+# GRID::spher3d_r y (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 0.5
+0 0 0 0 0 5 1 5 0.4
+0 0 0 0 0 5 2 5 0.3
+0 0 0 0 0 5 3 5 0.2
+0 0 0 0 0 5 4 5 0.1
+0 0 0 0 0 5 5 5 4.80740671595891e-17
+0 0 0 0 0 5 6 5 0.1
+0 0 0 0 0 5 7 5 0.2
+0 0 0 0 0 5 8 5 0.3
+0 0 0 0 0 5 9 5 0.4
+0 0 0 0 0 5 10 5 0.5
+
-"Time = 0.000000
--0.500000 0.5000000000000
--0.400000 0.4000000000000
--0.300000 0.3000000000000
--0.200000 0.2000000000000
--0.100000 0.1000000000000
-0.000000 0.0000000000000
-0.100000 0.1000000000000
-0.200000 0.2000000000000
-0.300000 0.3000000000000
-0.400000 0.4000000000000
-0.500000 0.5000000000000
diff --git a/CarpetAttic/Cart3dTest/test/eleven/spher3d_r.zl b/CarpetAttic/Cart3dTest/test/eleven/spher3d_r.zl
index 9cb5329c9..e3b906a7f 100644
--- a/CarpetAttic/Cart3dTest/test/eleven/spher3d_r.zl
+++ b/CarpetAttic/Cart3dTest/test/eleven/spher3d_r.zl
@@ -1,14 +1,19 @@
+# GRID::spher3d_r z (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 0.5
+0 0 0 0 0 5 5 1 0.4
+0 0 0 0 0 5 5 2 0.3
+0 0 0 0 0 5 5 3 0.2
+0 0 0 0 0 5 5 4 0.1
+0 0 0 0 0 5 5 5 4.80740671595891e-17
+0 0 0 0 0 5 5 6 0.1
+0 0 0 0 0 5 5 7 0.2
+0 0 0 0 0 5 5 8 0.3
+0 0 0 0 0 5 5 9 0.4
+0 0 0 0 0 5 5 10 0.5
+
-"Time = 0.000000
--0.500000 0.5000000000000
--0.400000 0.4000000000000
--0.300000 0.3000000000000
--0.200000 0.2000000000000
--0.100000 0.1000000000000
-0.000000 0.0000000000000
-0.100000 0.1000000000000
-0.200000 0.2000000000000
-0.300000 0.3000000000000
-0.400000 0.4000000000000
-0.500000 0.5000000000000
diff --git a/CarpetAttic/Cart3dTest/test/ghosts/cart3d_x.xl b/CarpetAttic/Cart3dTest/test/ghosts/cart3d_x.xl
index 262134984..514360e24 100644
--- a/CarpetAttic/Cart3dTest/test/ghosts/cart3d_x.xl
+++ b/CarpetAttic/Cart3dTest/test/ghosts/cart3d_x.xl
@@ -1,13 +1,18 @@
+# GRID::cart3d_x x (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 -0.5
+0 0 0 0 0 1 5 5 -0.388888888888889
+0 0 0 0 0 2 5 5 -0.277777777777778
+0 0 0 0 0 3 5 5 -0.166666666666667
+0 0 0 0 0 4 5 5 -0.0555555555555556
+0 0 0 0 0 5 5 5 0.0555555555555555
+0 0 0 0 0 6 5 5 0.166666666666667
+0 0 0 0 0 7 5 5 0.277777777777778
+0 0 0 0 0 8 5 5 0.388888888888889
+0 0 0 0 0 9 5 5 0.5
+
-"Time = 0.000000
--0.500000 -0.5000000000000
--0.388889 -0.3888888888889
--0.277778 -0.2777777777778
--0.166667 -0.1666666666667
--0.055556 -0.0555555555556
-0.055556 0.0555555555556
-0.166667 0.1666666666667
-0.277778 0.2777777777778
-0.388889 0.3888888888889
-0.500000 0.5000000000000
diff --git a/CarpetAttic/Cart3dTest/test/ghosts/cart3d_x.yl b/CarpetAttic/Cart3dTest/test/ghosts/cart3d_x.yl
index c47a5a90f..9878432a6 100644
--- a/CarpetAttic/Cart3dTest/test/ghosts/cart3d_x.yl
+++ b/CarpetAttic/Cart3dTest/test/ghosts/cart3d_x.yl
@@ -1,13 +1,18 @@
+# GRID::cart3d_x y (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 0.0555555555555555
+0 0 0 0 0 5 1 5 0.0555555555555555
+0 0 0 0 0 5 2 5 0.0555555555555555
+0 0 0 0 0 5 3 5 0.0555555555555555
+0 0 0 0 0 5 4 5 0.0555555555555555
+0 0 0 0 0 5 5 5 0.0555555555555555
+0 0 0 0 0 5 6 5 0.0555555555555555
+0 0 0 0 0 5 7 5 0.0555555555555555
+0 0 0 0 0 5 8 5 0.0555555555555555
+0 0 0 0 0 5 9 5 0.0555555555555555
+
-"Time = 0.000000
--0.500000 0.0555555555556
--0.388889 0.0555555555556
--0.277778 0.0555555555556
--0.166667 0.0555555555556
--0.055556 0.0555555555556
-0.055556 0.0555555555556
-0.166667 0.0555555555556
-0.277778 0.0555555555556
-0.388889 0.0555555555556
-0.500000 0.0555555555556
diff --git a/CarpetAttic/Cart3dTest/test/ghosts/cart3d_x.zl b/CarpetAttic/Cart3dTest/test/ghosts/cart3d_x.zl
index c47a5a90f..a49ec16e5 100644
--- a/CarpetAttic/Cart3dTest/test/ghosts/cart3d_x.zl
+++ b/CarpetAttic/Cart3dTest/test/ghosts/cart3d_x.zl
@@ -1,13 +1,18 @@
+# GRID::cart3d_x z (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 0.0555555555555555
+0 0 0 0 0 5 5 1 0.0555555555555555
+0 0 0 0 0 5 5 2 0.0555555555555555
+0 0 0 0 0 5 5 3 0.0555555555555555
+0 0 0 0 0 5 5 4 0.0555555555555555
+0 0 0 0 0 5 5 5 0.0555555555555555
+0 0 0 0 0 5 5 6 0.0555555555555555
+0 0 0 0 0 5 5 7 0.0555555555555555
+0 0 0 0 0 5 5 8 0.0555555555555555
+0 0 0 0 0 5 5 9 0.0555555555555555
+
-"Time = 0.000000
--0.500000 0.0555555555556
--0.388889 0.0555555555556
--0.277778 0.0555555555556
--0.166667 0.0555555555556
--0.055556 0.0555555555556
-0.055556 0.0555555555556
-0.166667 0.0555555555556
-0.277778 0.0555555555556
-0.388889 0.0555555555556
-0.500000 0.0555555555556
diff --git a/CarpetAttic/Cart3dTest/test/ghosts/cart3d_y.xl b/CarpetAttic/Cart3dTest/test/ghosts/cart3d_y.xl
index c47a5a90f..305df91b9 100644
--- a/CarpetAttic/Cart3dTest/test/ghosts/cart3d_y.xl
+++ b/CarpetAttic/Cart3dTest/test/ghosts/cart3d_y.xl
@@ -1,13 +1,18 @@
+# GRID::cart3d_y x (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 0.0555555555555555
+0 0 0 0 0 1 5 5 0.0555555555555555
+0 0 0 0 0 2 5 5 0.0555555555555555
+0 0 0 0 0 3 5 5 0.0555555555555555
+0 0 0 0 0 4 5 5 0.0555555555555555
+0 0 0 0 0 5 5 5 0.0555555555555555
+0 0 0 0 0 6 5 5 0.0555555555555555
+0 0 0 0 0 7 5 5 0.0555555555555555
+0 0 0 0 0 8 5 5 0.0555555555555555
+0 0 0 0 0 9 5 5 0.0555555555555555
+
-"Time = 0.000000
--0.500000 0.0555555555556
--0.388889 0.0555555555556
--0.277778 0.0555555555556
--0.166667 0.0555555555556
--0.055556 0.0555555555556
-0.055556 0.0555555555556
-0.166667 0.0555555555556
-0.277778 0.0555555555556
-0.388889 0.0555555555556
-0.500000 0.0555555555556
diff --git a/CarpetAttic/Cart3dTest/test/ghosts/cart3d_y.yl b/CarpetAttic/Cart3dTest/test/ghosts/cart3d_y.yl
index 262134984..e48707e3e 100644
--- a/CarpetAttic/Cart3dTest/test/ghosts/cart3d_y.yl
+++ b/CarpetAttic/Cart3dTest/test/ghosts/cart3d_y.yl
@@ -1,13 +1,18 @@
+# GRID::cart3d_y y (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 -0.5
+0 0 0 0 0 5 1 5 -0.388888888888889
+0 0 0 0 0 5 2 5 -0.277777777777778
+0 0 0 0 0 5 3 5 -0.166666666666667
+0 0 0 0 0 5 4 5 -0.0555555555555556
+0 0 0 0 0 5 5 5 0.0555555555555555
+0 0 0 0 0 5 6 5 0.166666666666667
+0 0 0 0 0 5 7 5 0.277777777777778
+0 0 0 0 0 5 8 5 0.388888888888889
+0 0 0 0 0 5 9 5 0.5
+
-"Time = 0.000000
--0.500000 -0.5000000000000
--0.388889 -0.3888888888889
--0.277778 -0.2777777777778
--0.166667 -0.1666666666667
--0.055556 -0.0555555555556
-0.055556 0.0555555555556
-0.166667 0.1666666666667
-0.277778 0.2777777777778
-0.388889 0.3888888888889
-0.500000 0.5000000000000
diff --git a/CarpetAttic/Cart3dTest/test/ghosts/cart3d_y.zl b/CarpetAttic/Cart3dTest/test/ghosts/cart3d_y.zl
index c47a5a90f..87aa406c3 100644
--- a/CarpetAttic/Cart3dTest/test/ghosts/cart3d_y.zl
+++ b/CarpetAttic/Cart3dTest/test/ghosts/cart3d_y.zl
@@ -1,13 +1,18 @@
+# GRID::cart3d_y z (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 0.0555555555555555
+0 0 0 0 0 5 5 1 0.0555555555555555
+0 0 0 0 0 5 5 2 0.0555555555555555
+0 0 0 0 0 5 5 3 0.0555555555555555
+0 0 0 0 0 5 5 4 0.0555555555555555
+0 0 0 0 0 5 5 5 0.0555555555555555
+0 0 0 0 0 5 5 6 0.0555555555555555
+0 0 0 0 0 5 5 7 0.0555555555555555
+0 0 0 0 0 5 5 8 0.0555555555555555
+0 0 0 0 0 5 5 9 0.0555555555555555
+
-"Time = 0.000000
--0.500000 0.0555555555556
--0.388889 0.0555555555556
--0.277778 0.0555555555556
--0.166667 0.0555555555556
--0.055556 0.0555555555556
-0.055556 0.0555555555556
-0.166667 0.0555555555556
-0.277778 0.0555555555556
-0.388889 0.0555555555556
-0.500000 0.0555555555556
diff --git a/CarpetAttic/Cart3dTest/test/ghosts/cart3d_z.xl b/CarpetAttic/Cart3dTest/test/ghosts/cart3d_z.xl
index c47a5a90f..43f2286a4 100644
--- a/CarpetAttic/Cart3dTest/test/ghosts/cart3d_z.xl
+++ b/CarpetAttic/Cart3dTest/test/ghosts/cart3d_z.xl
@@ -1,13 +1,18 @@
+# GRID::cart3d_z x (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 0.0555555555555555
+0 0 0 0 0 1 5 5 0.0555555555555555
+0 0 0 0 0 2 5 5 0.0555555555555555
+0 0 0 0 0 3 5 5 0.0555555555555555
+0 0 0 0 0 4 5 5 0.0555555555555555
+0 0 0 0 0 5 5 5 0.0555555555555555
+0 0 0 0 0 6 5 5 0.0555555555555555
+0 0 0 0 0 7 5 5 0.0555555555555555
+0 0 0 0 0 8 5 5 0.0555555555555555
+0 0 0 0 0 9 5 5 0.0555555555555555
+
-"Time = 0.000000
--0.500000 0.0555555555556
--0.388889 0.0555555555556
--0.277778 0.0555555555556
--0.166667 0.0555555555556
--0.055556 0.0555555555556
-0.055556 0.0555555555556
-0.166667 0.0555555555556
-0.277778 0.0555555555556
-0.388889 0.0555555555556
-0.500000 0.0555555555556
diff --git a/CarpetAttic/Cart3dTest/test/ghosts/cart3d_z.yl b/CarpetAttic/Cart3dTest/test/ghosts/cart3d_z.yl
index c47a5a90f..98832f13a 100644
--- a/CarpetAttic/Cart3dTest/test/ghosts/cart3d_z.yl
+++ b/CarpetAttic/Cart3dTest/test/ghosts/cart3d_z.yl
@@ -1,13 +1,18 @@
+# GRID::cart3d_z y (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 0.0555555555555555
+0 0 0 0 0 5 1 5 0.0555555555555555
+0 0 0 0 0 5 2 5 0.0555555555555555
+0 0 0 0 0 5 3 5 0.0555555555555555
+0 0 0 0 0 5 4 5 0.0555555555555555
+0 0 0 0 0 5 5 5 0.0555555555555555
+0 0 0 0 0 5 6 5 0.0555555555555555
+0 0 0 0 0 5 7 5 0.0555555555555555
+0 0 0 0 0 5 8 5 0.0555555555555555
+0 0 0 0 0 5 9 5 0.0555555555555555
+
-"Time = 0.000000
--0.500000 0.0555555555556
--0.388889 0.0555555555556
--0.277778 0.0555555555556
--0.166667 0.0555555555556
--0.055556 0.0555555555556
-0.055556 0.0555555555556
-0.166667 0.0555555555556
-0.277778 0.0555555555556
-0.388889 0.0555555555556
-0.500000 0.0555555555556
diff --git a/CarpetAttic/Cart3dTest/test/ghosts/cart3d_z.zl b/CarpetAttic/Cart3dTest/test/ghosts/cart3d_z.zl
index 262134984..d5eb90a96 100644
--- a/CarpetAttic/Cart3dTest/test/ghosts/cart3d_z.zl
+++ b/CarpetAttic/Cart3dTest/test/ghosts/cart3d_z.zl
@@ -1,13 +1,18 @@
+# GRID::cart3d_z z (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 -0.5
+0 0 0 0 0 5 5 1 -0.388888888888889
+0 0 0 0 0 5 5 2 -0.277777777777778
+0 0 0 0 0 5 5 3 -0.166666666666667
+0 0 0 0 0 5 5 4 -0.0555555555555556
+0 0 0 0 0 5 5 5 0.0555555555555555
+0 0 0 0 0 5 5 6 0.166666666666667
+0 0 0 0 0 5 5 7 0.277777777777778
+0 0 0 0 0 5 5 8 0.388888888888889
+0 0 0 0 0 5 5 9 0.5
+
-"Time = 0.000000
--0.500000 -0.5000000000000
--0.388889 -0.3888888888889
--0.277778 -0.2777777777778
--0.166667 -0.1666666666667
--0.055556 -0.0555555555556
-0.055556 0.0555555555556
-0.166667 0.1666666666667
-0.277778 0.2777777777778
-0.388889 0.3888888888889
-0.500000 0.5000000000000
diff --git a/CarpetAttic/Cart3dTest/test/ghosts/spher3d_r.xl b/CarpetAttic/Cart3dTest/test/ghosts/spher3d_r.xl
index a508c3897..deb988a58 100644
--- a/CarpetAttic/Cart3dTest/test/ghosts/spher3d_r.xl
+++ b/CarpetAttic/Cart3dTest/test/ghosts/spher3d_r.xl
@@ -1,13 +1,18 @@
+# GRID::spher3d_r x (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 0.50613519884135
+0 0 0 0 0 1 5 5 0.396746023807936
+0 0 0 0 0 2 5 5 0.288675134594813
+0 0 0 0 0 3 5 5 0.184256932797522
+0 0 0 0 0 4 5 5 0.0962250448649376
+0 0 0 0 0 5 5 5 0.0962250448649376
+0 0 0 0 0 6 5 5 0.184256932797522
+0 0 0 0 0 7 5 5 0.288675134594813
+0 0 0 0 0 8 5 5 0.396746023807936
+0 0 0 0 0 9 5 5 0.50613519884135
+
-"Time = 0.000000
--0.500000 0.5061351988413
--0.388889 0.3967460238079
--0.277778 0.2886751345948
--0.166667 0.1842569327975
--0.055556 0.0962250448649
-0.055556 0.0962250448649
-0.166667 0.1842569327975
-0.277778 0.2886751345948
-0.388889 0.3967460238079
-0.500000 0.5061351988413
diff --git a/CarpetAttic/Cart3dTest/test/ghosts/spher3d_r.yl b/CarpetAttic/Cart3dTest/test/ghosts/spher3d_r.yl
index a508c3897..d6c525c9b 100644
--- a/CarpetAttic/Cart3dTest/test/ghosts/spher3d_r.yl
+++ b/CarpetAttic/Cart3dTest/test/ghosts/spher3d_r.yl
@@ -1,13 +1,18 @@
+# GRID::spher3d_r y (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 0.50613519884135
+0 0 0 0 0 5 1 5 0.396746023807936
+0 0 0 0 0 5 2 5 0.288675134594813
+0 0 0 0 0 5 3 5 0.184256932797522
+0 0 0 0 0 5 4 5 0.0962250448649376
+0 0 0 0 0 5 5 5 0.0962250448649376
+0 0 0 0 0 5 6 5 0.184256932797522
+0 0 0 0 0 5 7 5 0.288675134594813
+0 0 0 0 0 5 8 5 0.396746023807936
+0 0 0 0 0 5 9 5 0.50613519884135
+
-"Time = 0.000000
--0.500000 0.5061351988413
--0.388889 0.3967460238079
--0.277778 0.2886751345948
--0.166667 0.1842569327975
--0.055556 0.0962250448649
-0.055556 0.0962250448649
-0.166667 0.1842569327975
-0.277778 0.2886751345948
-0.388889 0.3967460238079
-0.500000 0.5061351988413
diff --git a/CarpetAttic/Cart3dTest/test/ghosts/spher3d_r.zl b/CarpetAttic/Cart3dTest/test/ghosts/spher3d_r.zl
index a508c3897..8f6440db6 100644
--- a/CarpetAttic/Cart3dTest/test/ghosts/spher3d_r.zl
+++ b/CarpetAttic/Cart3dTest/test/ghosts/spher3d_r.zl
@@ -1,13 +1,18 @@
+# GRID::spher3d_r z (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 0.50613519884135
+0 0 0 0 0 5 5 1 0.396746023807936
+0 0 0 0 0 5 5 2 0.288675134594813
+0 0 0 0 0 5 5 3 0.184256932797522
+0 0 0 0 0 5 5 4 0.0962250448649376
+0 0 0 0 0 5 5 5 0.0962250448649376
+0 0 0 0 0 5 5 6 0.184256932797522
+0 0 0 0 0 5 5 7 0.288675134594813
+0 0 0 0 0 5 5 8 0.396746023807936
+0 0 0 0 0 5 5 9 0.50613519884135
+
-"Time = 0.000000
--0.500000 0.5061351988413
--0.388889 0.3967460238079
--0.277778 0.2886751345948
--0.166667 0.1842569327975
--0.055556 0.0962250448649
-0.055556 0.0962250448649
-0.166667 0.1842569327975
-0.277778 0.2886751345948
-0.388889 0.3967460238079
-0.500000 0.5061351988413
diff --git a/CarpetAttic/Cart3dTest/test/octant/ax.xl b/CarpetAttic/Cart3dTest/test/octant/ax.xl
index 8be76a5df..8dd8e5c6f 100644
--- a/CarpetAttic/Cart3dTest/test/octant/ax.xl
+++ b/CarpetAttic/Cart3dTest/test/octant/ax.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax x (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 31000102
+0 0 0 0 0 1 1 2 31010102
+0 0 0 0 0 2 1 2 31020102
+0 0 0 0 0 3 1 2 31030102
+0 0 0 0 0 4 1 2 31040102
+0 0 0 0 0 5 1 2 31050102
+0 0 0 0 0 6 1 2 31060102
+0 0 0 0 0 7 1 2 31070102
+0 0 0 0 0 8 1 2 31080102
+0 0 0 0 0 9 1 2 31090102
-"Time = 0.000000
-0.150000 31000101.0000000000000
-0.450000 31010101.0000000000000
-0.750000 31020101.0000000000000
-1.050000 31030101.0000000000000
-1.350000 31040101.0000000000000
-1.650000 31050101.0000000000000
-1.950000 31060101.0000000000000
-2.250000 31070101.0000000000000
-2.550000 31080101.0000000000000
-2.850000 31090101.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 31000102
+1 0 0 0 0 1 1 2 31010102
+1 0 0 0 0 2 1 2 31020102
+1 0 0 0 0 3 1 2 31030102
+1 0 0 0 0 4 1 2 31040102
+1 0 0 0 0 5 1 2 31050102
+1 0 0 0 0 6 1 2 31060102
+1 0 0 0 0 7 1 2 31070102
+1 0 0 0 0 8 1 2 31080102
+1 0 0 0 0 9 1 2 31090102
+
-"Time = 1.000000
-0.150000 -31000102.0000000000000
-0.450000 -31010102.0000000000000
-0.750000 -31020102.0000000000000
-1.050000 -31030102.0000000000000
-1.350000 -31040102.0000000000000
-1.650000 -31050102.0000000000000
-1.950000 -31060102.0000000000000
-2.250000 -31070102.0000000000000
-2.550000 -31080102.0000000000000
-2.850000 -31090102.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/ax.yl b/CarpetAttic/Cart3dTest/test/octant/ax.yl
index cb1787831..aa4a6ba5d 100644
--- a/CarpetAttic/Cart3dTest/test/octant/ax.yl
+++ b/CarpetAttic/Cart3dTest/test/octant/ax.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax y (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 31000002
+0 0 0 0 0 0 1 2 31000102
+0 0 0 0 0 0 2 2 31000202
+0 0 0 0 0 0 3 2 31000302
+0 0 0 0 0 0 4 2 31000402
+0 0 0 0 0 0 5 2 31000502
+0 0 0 0 0 0 6 2 31000602
+0 0 0 0 0 0 7 2 31000702
+0 0 0 0 0 0 8 2 31000802
+0 0 0 0 0 0 9 2 31000902
-"Time = 0.000000
--0.150000 31000001.0000000000000
-0.150000 31000101.0000000000000
-0.450000 31000201.0000000000000
-0.750000 31000301.0000000000000
-1.050000 31000401.0000000000000
-1.350000 31000501.0000000000000
-1.650000 31000601.0000000000000
-1.950000 31000701.0000000000000
-2.250000 31000801.0000000000000
-2.550000 31000901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 -31000102
+1 0 0 0 0 0 1 2 31000102
+1 0 0 0 0 0 2 2 31000202
+1 0 0 0 0 0 3 2 31000302
+1 0 0 0 0 0 4 2 31000402
+1 0 0 0 0 0 5 2 31000502
+1 0 0 0 0 0 6 2 31000602
+1 0 0 0 0 0 7 2 31000702
+1 0 0 0 0 0 8 2 31000802
+1 0 0 0 0 0 9 2 31000902
+
-"Time = 1.000000
--0.150000 31000102.0000000000000
-0.150000 -31000102.0000000000000
-0.450000 -31000202.0000000000000
-0.750000 -31000302.0000000000000
-1.050000 -31000402.0000000000000
-1.350000 -31000502.0000000000000
-1.650000 -31000602.0000000000000
-1.950000 -31000702.0000000000000
-2.250000 -31000802.0000000000000
-2.550000 -31000902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/ax.zl b/CarpetAttic/Cart3dTest/test/octant/ax.zl
index 686fb2611..af2c77d03 100644
--- a/CarpetAttic/Cart3dTest/test/octant/ax.zl
+++ b/CarpetAttic/Cart3dTest/test/octant/ax.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax z (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 31000100
+0 0 0 0 0 0 1 1 31000101
+0 0 0 0 0 0 1 2 31000102
+0 0 0 0 0 0 1 3 31000103
+0 0 0 0 0 0 1 4 31000104
+0 0 0 0 0 0 1 5 31000105
+0 0 0 0 0 0 1 6 31000106
+0 0 0 0 0 0 1 7 31000107
+0 0 0 0 0 0 1 8 31000108
+0 0 0 0 0 0 1 9 31000109
-"Time = 0.000000
--0.450000 31000100.0000000000000
--0.150000 31000101.0000000000000
-0.150000 31000102.0000000000000
-0.450000 31000103.0000000000000
-0.750000 31000104.0000000000000
-1.050000 31000105.0000000000000
-1.350000 31000106.0000000000000
-1.650000 31000107.0000000000000
-1.950000 31000108.0000000000000
-2.250000 31000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 -31000103
+1 0 0 0 0 0 1 1 -31000102
+1 0 0 0 0 0 1 2 31000102
+1 0 0 0 0 0 1 3 31000103
+1 0 0 0 0 0 1 4 31000104
+1 0 0 0 0 0 1 5 31000105
+1 0 0 0 0 0 1 6 31000106
+1 0 0 0 0 0 1 7 31000107
+1 0 0 0 0 0 1 8 31000108
+1 0 0 0 0 0 1 9 31000109
+
-"Time = 1.000000
--0.450000 -31000103.0000000000000
--0.150000 -31000102.0000000000000
-0.150000 31000102.0000000000000
-0.450000 31000103.0000000000000
-0.750000 31000104.0000000000000
-1.050000 31000105.0000000000000
-1.350000 31000106.0000000000000
-1.650000 31000107.0000000000000
-1.950000 31000108.0000000000000
-2.250000 31000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/ay.xl b/CarpetAttic/Cart3dTest/test/octant/ay.xl
index ebcc864b2..0a23fdefd 100644
--- a/CarpetAttic/Cart3dTest/test/octant/ay.xl
+++ b/CarpetAttic/Cart3dTest/test/octant/ay.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay x (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 32000102
+0 0 0 0 0 1 1 2 32010102
+0 0 0 0 0 2 1 2 32020102
+0 0 0 0 0 3 1 2 32030102
+0 0 0 0 0 4 1 2 32040102
+0 0 0 0 0 5 1 2 32050102
+0 0 0 0 0 6 1 2 32060102
+0 0 0 0 0 7 1 2 32070102
+0 0 0 0 0 8 1 2 32080102
+0 0 0 0 0 9 1 2 32090102
-"Time = 0.000000
-0.150000 32000101.0000000000000
-0.450000 32010101.0000000000000
-0.750000 32020101.0000000000000
-1.050000 32030101.0000000000000
-1.350000 32040101.0000000000000
-1.650000 32050101.0000000000000
-1.950000 32060101.0000000000000
-2.250000 32070101.0000000000000
-2.550000 32080101.0000000000000
-2.850000 32090101.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 32000102
+1 0 0 0 0 1 1 2 32010102
+1 0 0 0 0 2 1 2 32020102
+1 0 0 0 0 3 1 2 32030102
+1 0 0 0 0 4 1 2 32040102
+1 0 0 0 0 5 1 2 32050102
+1 0 0 0 0 6 1 2 32060102
+1 0 0 0 0 7 1 2 32070102
+1 0 0 0 0 8 1 2 32080102
+1 0 0 0 0 9 1 2 32090102
+
-"Time = 1.000000
-0.150000 -32000102.0000000000000
-0.450000 -32010102.0000000000000
-0.750000 -32020102.0000000000000
-1.050000 -32030102.0000000000000
-1.350000 -32040102.0000000000000
-1.650000 -32050102.0000000000000
-1.950000 -32060102.0000000000000
-2.250000 -32070102.0000000000000
-2.550000 -32080102.0000000000000
-2.850000 -32090102.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/ay.yl b/CarpetAttic/Cart3dTest/test/octant/ay.yl
index 0122b4075..c06545e68 100644
--- a/CarpetAttic/Cart3dTest/test/octant/ay.yl
+++ b/CarpetAttic/Cart3dTest/test/octant/ay.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay y (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 32000002
+0 0 0 0 0 0 1 2 32000102
+0 0 0 0 0 0 2 2 32000202
+0 0 0 0 0 0 3 2 32000302
+0 0 0 0 0 0 4 2 32000402
+0 0 0 0 0 0 5 2 32000502
+0 0 0 0 0 0 6 2 32000602
+0 0 0 0 0 0 7 2 32000702
+0 0 0 0 0 0 8 2 32000802
+0 0 0 0 0 0 9 2 32000902
-"Time = 0.000000
--0.150000 32000001.0000000000000
-0.150000 32000101.0000000000000
-0.450000 32000201.0000000000000
-0.750000 32000301.0000000000000
-1.050000 32000401.0000000000000
-1.350000 32000501.0000000000000
-1.650000 32000601.0000000000000
-1.950000 32000701.0000000000000
-2.250000 32000801.0000000000000
-2.550000 32000901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 32000102
+1 0 0 0 0 0 1 2 32000102
+1 0 0 0 0 0 2 2 32000202
+1 0 0 0 0 0 3 2 32000302
+1 0 0 0 0 0 4 2 32000402
+1 0 0 0 0 0 5 2 32000502
+1 0 0 0 0 0 6 2 32000602
+1 0 0 0 0 0 7 2 32000702
+1 0 0 0 0 0 8 2 32000802
+1 0 0 0 0 0 9 2 32000902
+
-"Time = 1.000000
--0.150000 -32000102.0000000000000
-0.150000 -32000102.0000000000000
-0.450000 -32000202.0000000000000
-0.750000 -32000302.0000000000000
-1.050000 -32000402.0000000000000
-1.350000 -32000502.0000000000000
-1.650000 -32000602.0000000000000
-1.950000 -32000702.0000000000000
-2.250000 -32000802.0000000000000
-2.550000 -32000902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/ay.zl b/CarpetAttic/Cart3dTest/test/octant/ay.zl
index 3ef69243c..8ec533c91 100644
--- a/CarpetAttic/Cart3dTest/test/octant/ay.zl
+++ b/CarpetAttic/Cart3dTest/test/octant/ay.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay z (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 32000100
+0 0 0 0 0 0 1 1 32000101
+0 0 0 0 0 0 1 2 32000102
+0 0 0 0 0 0 1 3 32000103
+0 0 0 0 0 0 1 4 32000104
+0 0 0 0 0 0 1 5 32000105
+0 0 0 0 0 0 1 6 32000106
+0 0 0 0 0 0 1 7 32000107
+0 0 0 0 0 0 1 8 32000108
+0 0 0 0 0 0 1 9 32000109
-"Time = 0.000000
--0.450000 32000100.0000000000000
--0.150000 32000101.0000000000000
-0.150000 32000102.0000000000000
-0.450000 32000103.0000000000000
-0.750000 32000104.0000000000000
-1.050000 32000105.0000000000000
-1.350000 32000106.0000000000000
-1.650000 32000107.0000000000000
-1.950000 32000108.0000000000000
-2.250000 32000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 -32000103
+1 0 0 0 0 0 1 1 -32000102
+1 0 0 0 0 0 1 2 32000102
+1 0 0 0 0 0 1 3 32000103
+1 0 0 0 0 0 1 4 32000104
+1 0 0 0 0 0 1 5 32000105
+1 0 0 0 0 0 1 6 32000106
+1 0 0 0 0 0 1 7 32000107
+1 0 0 0 0 0 1 8 32000108
+1 0 0 0 0 0 1 9 32000109
+
-"Time = 1.000000
--0.450000 -32000103.0000000000000
--0.150000 -32000102.0000000000000
-0.150000 32000102.0000000000000
-0.450000 32000103.0000000000000
-0.750000 32000104.0000000000000
-1.050000 32000105.0000000000000
-1.350000 32000106.0000000000000
-1.650000 32000107.0000000000000
-1.950000 32000108.0000000000000
-2.250000 32000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/az.xl b/CarpetAttic/Cart3dTest/test/octant/az.xl
index ab0bccc9c..f3620a409 100644
--- a/CarpetAttic/Cart3dTest/test/octant/az.xl
+++ b/CarpetAttic/Cart3dTest/test/octant/az.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::az x (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 33000102
+0 0 0 0 0 1 1 2 33010102
+0 0 0 0 0 2 1 2 33020102
+0 0 0 0 0 3 1 2 33030102
+0 0 0 0 0 4 1 2 33040102
+0 0 0 0 0 5 1 2 33050102
+0 0 0 0 0 6 1 2 33060102
+0 0 0 0 0 7 1 2 33070102
+0 0 0 0 0 8 1 2 33080102
+0 0 0 0 0 9 1 2 33090102
-"Time = 0.000000
-0.150000 33000101.0000000000000
-0.450000 33010101.0000000000000
-0.750000 33020101.0000000000000
-1.050000 33030101.0000000000000
-1.350000 33040101.0000000000000
-1.650000 33050101.0000000000000
-1.950000 33060101.0000000000000
-2.250000 33070101.0000000000000
-2.550000 33080101.0000000000000
-2.850000 33090101.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 33000102
+1 0 0 0 0 1 1 2 33010102
+1 0 0 0 0 2 1 2 33020102
+1 0 0 0 0 3 1 2 33030102
+1 0 0 0 0 4 1 2 33040102
+1 0 0 0 0 5 1 2 33050102
+1 0 0 0 0 6 1 2 33060102
+1 0 0 0 0 7 1 2 33070102
+1 0 0 0 0 8 1 2 33080102
+1 0 0 0 0 9 1 2 33090102
+
-"Time = 1.000000
-0.150000 33000102.0000000000000
-0.450000 33010102.0000000000000
-0.750000 33020102.0000000000000
-1.050000 33030102.0000000000000
-1.350000 33040102.0000000000000
-1.650000 33050102.0000000000000
-1.950000 33060102.0000000000000
-2.250000 33070102.0000000000000
-2.550000 33080102.0000000000000
-2.850000 33090102.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/az.yl b/CarpetAttic/Cart3dTest/test/octant/az.yl
index d56d61807..3aedf25fb 100644
--- a/CarpetAttic/Cart3dTest/test/octant/az.yl
+++ b/CarpetAttic/Cart3dTest/test/octant/az.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::az y (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 33000002
+0 0 0 0 0 0 1 2 33000102
+0 0 0 0 0 0 2 2 33000202
+0 0 0 0 0 0 3 2 33000302
+0 0 0 0 0 0 4 2 33000402
+0 0 0 0 0 0 5 2 33000502
+0 0 0 0 0 0 6 2 33000602
+0 0 0 0 0 0 7 2 33000702
+0 0 0 0 0 0 8 2 33000802
+0 0 0 0 0 0 9 2 33000902
-"Time = 0.000000
--0.150000 33000001.0000000000000
-0.150000 33000101.0000000000000
-0.450000 33000201.0000000000000
-0.750000 33000301.0000000000000
-1.050000 33000401.0000000000000
-1.350000 33000501.0000000000000
-1.650000 33000601.0000000000000
-1.950000 33000701.0000000000000
-2.250000 33000801.0000000000000
-2.550000 33000901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 -33000102
+1 0 0 0 0 0 1 2 33000102
+1 0 0 0 0 0 2 2 33000202
+1 0 0 0 0 0 3 2 33000302
+1 0 0 0 0 0 4 2 33000402
+1 0 0 0 0 0 5 2 33000502
+1 0 0 0 0 0 6 2 33000602
+1 0 0 0 0 0 7 2 33000702
+1 0 0 0 0 0 8 2 33000802
+1 0 0 0 0 0 9 2 33000902
+
-"Time = 1.000000
--0.150000 -33000102.0000000000000
-0.150000 33000102.0000000000000
-0.450000 33000202.0000000000000
-0.750000 33000302.0000000000000
-1.050000 33000402.0000000000000
-1.350000 33000502.0000000000000
-1.650000 33000602.0000000000000
-1.950000 33000702.0000000000000
-2.250000 33000802.0000000000000
-2.550000 33000902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/az.zl b/CarpetAttic/Cart3dTest/test/octant/az.zl
index fc656df4a..97912d068 100644
--- a/CarpetAttic/Cart3dTest/test/octant/az.zl
+++ b/CarpetAttic/Cart3dTest/test/octant/az.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::az z (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 33000100
+0 0 0 0 0 0 1 1 33000101
+0 0 0 0 0 0 1 2 33000102
+0 0 0 0 0 0 1 3 33000103
+0 0 0 0 0 0 1 4 33000104
+0 0 0 0 0 0 1 5 33000105
+0 0 0 0 0 0 1 6 33000106
+0 0 0 0 0 0 1 7 33000107
+0 0 0 0 0 0 1 8 33000108
+0 0 0 0 0 0 1 9 33000109
-"Time = 0.000000
--0.450000 33000100.0000000000000
--0.150000 33000101.0000000000000
-0.150000 33000102.0000000000000
-0.450000 33000103.0000000000000
-0.750000 33000104.0000000000000
-1.050000 33000105.0000000000000
-1.350000 33000106.0000000000000
-1.650000 33000107.0000000000000
-1.950000 33000108.0000000000000
-2.250000 33000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 33000103
+1 0 0 0 0 0 1 1 33000102
+1 0 0 0 0 0 1 2 33000102
+1 0 0 0 0 0 1 3 33000103
+1 0 0 0 0 0 1 4 33000104
+1 0 0 0 0 0 1 5 33000105
+1 0 0 0 0 0 1 6 33000106
+1 0 0 0 0 0 1 7 33000107
+1 0 0 0 0 0 1 8 33000108
+1 0 0 0 0 0 1 9 33000109
+
-"Time = 1.000000
--0.450000 33000103.0000000000000
--0.150000 33000102.0000000000000
-0.150000 33000102.0000000000000
-0.450000 33000103.0000000000000
-0.750000 33000104.0000000000000
-1.050000 33000105.0000000000000
-1.350000 33000106.0000000000000
-1.650000 33000107.0000000000000
-1.950000 33000108.0000000000000
-2.250000 33000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/cart3d_x.xl b/CarpetAttic/Cart3dTest/test/octant/cart3d_x.xl
index 50fd6a322..22bbe6acf 100644
--- a/CarpetAttic/Cart3dTest/test/octant/cart3d_x.xl
+++ b/CarpetAttic/Cart3dTest/test/octant/cart3d_x.xl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x x (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 0.15
+0 0 0 0 0 1 1 2 0.45
+0 0 0 0 0 2 1 2 0.75
+0 0 0 0 0 3 1 2 1.05
+0 0 0 0 0 4 1 2 1.35
+0 0 0 0 0 5 1 2 1.65
+0 0 0 0 0 6 1 2 1.95
+0 0 0 0 0 7 1 2 2.25
+0 0 0 0 0 8 1 2 2.55
+0 0 0 0 0 9 1 2 2.85
-"Time = 0.000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
-2.550000 2.5500000000000
-2.850000 2.8500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 0.15
+1 0 0 0 0 1 1 2 0.45
+1 0 0 0 0 2 1 2 0.75
+1 0 0 0 0 3 1 2 1.05
+1 0 0 0 0 4 1 2 1.35
+1 0 0 0 0 5 1 2 1.65
+1 0 0 0 0 6 1 2 1.95
+1 0 0 0 0 7 1 2 2.25
+1 0 0 0 0 8 1 2 2.55
+1 0 0 0 0 9 1 2 2.85
+
-"Time = 1.000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
-2.550000 2.5500000000000
-2.850000 2.8500000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/cart3d_x.yl b/CarpetAttic/Cart3dTest/test/octant/cart3d_x.yl
index 042fd8cff..fab75e1a2 100644
--- a/CarpetAttic/Cart3dTest/test/octant/cart3d_x.yl
+++ b/CarpetAttic/Cart3dTest/test/octant/cart3d_x.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x y (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 0.15
+0 0 0 0 0 0 1 2 0.15
+0 0 0 0 0 0 2 2 0.15
+0 0 0 0 0 0 3 2 0.15
+0 0 0 0 0 0 4 2 0.15
+0 0 0 0 0 0 5 2 0.15
+0 0 0 0 0 0 6 2 0.15
+0 0 0 0 0 0 7 2 0.15
+0 0 0 0 0 0 8 2 0.15
+0 0 0 0 0 0 9 2 0.15
-"Time = 0.000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
-1.950000 0.1500000000000
-2.250000 0.1500000000000
-2.550000 0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 0.15
+1 0 0 0 0 0 1 2 0.15
+1 0 0 0 0 0 2 2 0.15
+1 0 0 0 0 0 3 2 0.15
+1 0 0 0 0 0 4 2 0.15
+1 0 0 0 0 0 5 2 0.15
+1 0 0 0 0 0 6 2 0.15
+1 0 0 0 0 0 7 2 0.15
+1 0 0 0 0 0 8 2 0.15
+1 0 0 0 0 0 9 2 0.15
+
-"Time = 1.000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
-1.950000 0.1500000000000
-2.250000 0.1500000000000
-2.550000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/cart3d_x.zl b/CarpetAttic/Cart3dTest/test/octant/cart3d_x.zl
index bb20362ce..3920c211d 100644
--- a/CarpetAttic/Cart3dTest/test/octant/cart3d_x.zl
+++ b/CarpetAttic/Cart3dTest/test/octant/cart3d_x.zl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x z (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 0.15
+0 0 0 0 0 0 1 1 0.15
+0 0 0 0 0 0 1 2 0.15
+0 0 0 0 0 0 1 3 0.15
+0 0 0 0 0 0 1 4 0.15
+0 0 0 0 0 0 1 5 0.15
+0 0 0 0 0 0 1 6 0.15
+0 0 0 0 0 0 1 7 0.15
+0 0 0 0 0 0 1 8 0.15
+0 0 0 0 0 0 1 9 0.15
-"Time = 0.000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
-1.950000 0.1500000000000
-2.250000 0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 0.15
+1 0 0 0 0 0 1 1 0.15
+1 0 0 0 0 0 1 2 0.15
+1 0 0 0 0 0 1 3 0.15
+1 0 0 0 0 0 1 4 0.15
+1 0 0 0 0 0 1 5 0.15
+1 0 0 0 0 0 1 6 0.15
+1 0 0 0 0 0 1 7 0.15
+1 0 0 0 0 0 1 8 0.15
+1 0 0 0 0 0 1 9 0.15
+
-"Time = 1.000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
-1.950000 0.1500000000000
-2.250000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/cart3d_y.xl b/CarpetAttic/Cart3dTest/test/octant/cart3d_y.xl
index 2dcde029c..27036592d 100644
--- a/CarpetAttic/Cart3dTest/test/octant/cart3d_y.xl
+++ b/CarpetAttic/Cart3dTest/test/octant/cart3d_y.xl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y x (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 0.15
+0 0 0 0 0 1 1 2 0.15
+0 0 0 0 0 2 1 2 0.15
+0 0 0 0 0 3 1 2 0.15
+0 0 0 0 0 4 1 2 0.15
+0 0 0 0 0 5 1 2 0.15
+0 0 0 0 0 6 1 2 0.15
+0 0 0 0 0 7 1 2 0.15
+0 0 0 0 0 8 1 2 0.15
+0 0 0 0 0 9 1 2 0.15
-"Time = 0.000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
-1.950000 0.1500000000000
-2.250000 0.1500000000000
-2.550000 0.1500000000000
-2.850000 0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 0.15
+1 0 0 0 0 1 1 2 0.15
+1 0 0 0 0 2 1 2 0.15
+1 0 0 0 0 3 1 2 0.15
+1 0 0 0 0 4 1 2 0.15
+1 0 0 0 0 5 1 2 0.15
+1 0 0 0 0 6 1 2 0.15
+1 0 0 0 0 7 1 2 0.15
+1 0 0 0 0 8 1 2 0.15
+1 0 0 0 0 9 1 2 0.15
+
-"Time = 1.000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
-1.950000 0.1500000000000
-2.250000 0.1500000000000
-2.550000 0.1500000000000
-2.850000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/cart3d_y.yl b/CarpetAttic/Cart3dTest/test/octant/cart3d_y.yl
index b2abd0b7f..c74c2bde5 100644
--- a/CarpetAttic/Cart3dTest/test/octant/cart3d_y.yl
+++ b/CarpetAttic/Cart3dTest/test/octant/cart3d_y.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y y (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 -0.15
+0 0 0 0 0 0 1 2 0.15
+0 0 0 0 0 0 2 2 0.45
+0 0 0 0 0 0 3 2 0.75
+0 0 0 0 0 0 4 2 1.05
+0 0 0 0 0 0 5 2 1.35
+0 0 0 0 0 0 6 2 1.65
+0 0 0 0 0 0 7 2 1.95
+0 0 0 0 0 0 8 2 2.25
+0 0 0 0 0 0 9 2 2.55
-"Time = 0.000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
-2.550000 2.5500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 -0.15
+1 0 0 0 0 0 1 2 0.15
+1 0 0 0 0 0 2 2 0.45
+1 0 0 0 0 0 3 2 0.75
+1 0 0 0 0 0 4 2 1.05
+1 0 0 0 0 0 5 2 1.35
+1 0 0 0 0 0 6 2 1.65
+1 0 0 0 0 0 7 2 1.95
+1 0 0 0 0 0 8 2 2.25
+1 0 0 0 0 0 9 2 2.55
+
-"Time = 1.000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
-2.550000 2.5500000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/cart3d_y.zl b/CarpetAttic/Cart3dTest/test/octant/cart3d_y.zl
index bb20362ce..1325581cd 100644
--- a/CarpetAttic/Cart3dTest/test/octant/cart3d_y.zl
+++ b/CarpetAttic/Cart3dTest/test/octant/cart3d_y.zl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y z (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 0.15
+0 0 0 0 0 0 1 1 0.15
+0 0 0 0 0 0 1 2 0.15
+0 0 0 0 0 0 1 3 0.15
+0 0 0 0 0 0 1 4 0.15
+0 0 0 0 0 0 1 5 0.15
+0 0 0 0 0 0 1 6 0.15
+0 0 0 0 0 0 1 7 0.15
+0 0 0 0 0 0 1 8 0.15
+0 0 0 0 0 0 1 9 0.15
-"Time = 0.000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
-1.950000 0.1500000000000
-2.250000 0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 0.15
+1 0 0 0 0 0 1 1 0.15
+1 0 0 0 0 0 1 2 0.15
+1 0 0 0 0 0 1 3 0.15
+1 0 0 0 0 0 1 4 0.15
+1 0 0 0 0 0 1 5 0.15
+1 0 0 0 0 0 1 6 0.15
+1 0 0 0 0 0 1 7 0.15
+1 0 0 0 0 0 1 8 0.15
+1 0 0 0 0 0 1 9 0.15
+
-"Time = 1.000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
-1.950000 0.1500000000000
-2.250000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/cart3d_z.xl b/CarpetAttic/Cart3dTest/test/octant/cart3d_z.xl
index f1d268a16..e6951854e 100644
--- a/CarpetAttic/Cart3dTest/test/octant/cart3d_z.xl
+++ b/CarpetAttic/Cart3dTest/test/octant/cart3d_z.xl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z x (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 0.15
+0 0 0 0 0 1 1 2 0.15
+0 0 0 0 0 2 1 2 0.15
+0 0 0 0 0 3 1 2 0.15
+0 0 0 0 0 4 1 2 0.15
+0 0 0 0 0 5 1 2 0.15
+0 0 0 0 0 6 1 2 0.15
+0 0 0 0 0 7 1 2 0.15
+0 0 0 0 0 8 1 2 0.15
+0 0 0 0 0 9 1 2 0.15
-"Time = 0.000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
-2.850000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 0.15
+1 0 0 0 0 1 1 2 0.15
+1 0 0 0 0 2 1 2 0.15
+1 0 0 0 0 3 1 2 0.15
+1 0 0 0 0 4 1 2 0.15
+1 0 0 0 0 5 1 2 0.15
+1 0 0 0 0 6 1 2 0.15
+1 0 0 0 0 7 1 2 0.15
+1 0 0 0 0 8 1 2 0.15
+1 0 0 0 0 9 1 2 0.15
+
-"Time = 1.000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
-2.850000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/cart3d_z.yl b/CarpetAttic/Cart3dTest/test/octant/cart3d_z.yl
index 46363bcfd..18e371387 100644
--- a/CarpetAttic/Cart3dTest/test/octant/cart3d_z.yl
+++ b/CarpetAttic/Cart3dTest/test/octant/cart3d_z.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z y (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 0.15
+0 0 0 0 0 0 1 2 0.15
+0 0 0 0 0 0 2 2 0.15
+0 0 0 0 0 0 3 2 0.15
+0 0 0 0 0 0 4 2 0.15
+0 0 0 0 0 0 5 2 0.15
+0 0 0 0 0 0 6 2 0.15
+0 0 0 0 0 0 7 2 0.15
+0 0 0 0 0 0 8 2 0.15
+0 0 0 0 0 0 9 2 0.15
-"Time = 0.000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 0.15
+1 0 0 0 0 0 1 2 0.15
+1 0 0 0 0 0 2 2 0.15
+1 0 0 0 0 0 3 2 0.15
+1 0 0 0 0 0 4 2 0.15
+1 0 0 0 0 0 5 2 0.15
+1 0 0 0 0 0 6 2 0.15
+1 0 0 0 0 0 7 2 0.15
+1 0 0 0 0 0 8 2 0.15
+1 0 0 0 0 0 9 2 0.15
+
-"Time = 1.000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/cart3d_z.zl b/CarpetAttic/Cart3dTest/test/octant/cart3d_z.zl
index 20ba9f007..99a89a4c7 100644
--- a/CarpetAttic/Cart3dTest/test/octant/cart3d_z.zl
+++ b/CarpetAttic/Cart3dTest/test/octant/cart3d_z.zl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z z (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 -0.45
+0 0 0 0 0 0 1 1 -0.15
+0 0 0 0 0 0 1 2 0.15
+0 0 0 0 0 0 1 3 0.45
+0 0 0 0 0 0 1 4 0.75
+0 0 0 0 0 0 1 5 1.05
+0 0 0 0 0 0 1 6 1.35
+0 0 0 0 0 0 1 7 1.65
+0 0 0 0 0 0 1 8 1.95
+0 0 0 0 0 0 1 9 2.25
-"Time = 0.000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 -0.45
+1 0 0 0 0 0 1 1 -0.15
+1 0 0 0 0 0 1 2 0.15
+1 0 0 0 0 0 1 3 0.45
+1 0 0 0 0 0 1 4 0.75
+1 0 0 0 0 0 1 5 1.05
+1 0 0 0 0 0 1 6 1.35
+1 0 0 0 0 0 1 7 1.65
+1 0 0 0 0 0 1 8 1.95
+1 0 0 0 0 0 1 9 2.25
+
-"Time = 1.000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/fxx.xl b/CarpetAttic/Cart3dTest/test/octant/fxx.xl
index ed2293394..bb3587def 100644
--- a/CarpetAttic/Cart3dTest/test/octant/fxx.xl
+++ b/CarpetAttic/Cart3dTest/test/octant/fxx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx x (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 41000102
+0 0 0 0 0 1 1 2 41010102
+0 0 0 0 0 2 1 2 41020102
+0 0 0 0 0 3 1 2 41030102
+0 0 0 0 0 4 1 2 41040102
+0 0 0 0 0 5 1 2 41050102
+0 0 0 0 0 6 1 2 41060102
+0 0 0 0 0 7 1 2 41070102
+0 0 0 0 0 8 1 2 41080102
+0 0 0 0 0 9 1 2 41090102
-"Time = 0.000000
-0.150000 41000101.0000000000000
-0.450000 41010101.0000000000000
-0.750000 41020101.0000000000000
-1.050000 41030101.0000000000000
-1.350000 41040101.0000000000000
-1.650000 41050101.0000000000000
-1.950000 41060101.0000000000000
-2.250000 41070101.0000000000000
-2.550000 41080101.0000000000000
-2.850000 41090101.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 41000102
+1 0 0 0 0 1 1 2 41010102
+1 0 0 0 0 2 1 2 41020102
+1 0 0 0 0 3 1 2 41030102
+1 0 0 0 0 4 1 2 41040102
+1 0 0 0 0 5 1 2 41050102
+1 0 0 0 0 6 1 2 41060102
+1 0 0 0 0 7 1 2 41070102
+1 0 0 0 0 8 1 2 41080102
+1 0 0 0 0 9 1 2 41090102
+
-"Time = 1.000000
-0.150000 41000102.0000000000000
-0.450000 41010102.0000000000000
-0.750000 41020102.0000000000000
-1.050000 41030102.0000000000000
-1.350000 41040102.0000000000000
-1.650000 41050102.0000000000000
-1.950000 41060102.0000000000000
-2.250000 41070102.0000000000000
-2.550000 41080102.0000000000000
-2.850000 41090102.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/fxx.yl b/CarpetAttic/Cart3dTest/test/octant/fxx.yl
index f34e7dfd4..772124b44 100644
--- a/CarpetAttic/Cart3dTest/test/octant/fxx.yl
+++ b/CarpetAttic/Cart3dTest/test/octant/fxx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx y (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 41000002
+0 0 0 0 0 0 1 2 41000102
+0 0 0 0 0 0 2 2 41000202
+0 0 0 0 0 0 3 2 41000302
+0 0 0 0 0 0 4 2 41000402
+0 0 0 0 0 0 5 2 41000502
+0 0 0 0 0 0 6 2 41000602
+0 0 0 0 0 0 7 2 41000702
+0 0 0 0 0 0 8 2 41000802
+0 0 0 0 0 0 9 2 41000902
-"Time = 0.000000
--0.150000 41000001.0000000000000
-0.150000 41000101.0000000000000
-0.450000 41000201.0000000000000
-0.750000 41000301.0000000000000
-1.050000 41000401.0000000000000
-1.350000 41000501.0000000000000
-1.650000 41000601.0000000000000
-1.950000 41000701.0000000000000
-2.250000 41000801.0000000000000
-2.550000 41000901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 41000102
+1 0 0 0 0 0 1 2 41000102
+1 0 0 0 0 0 2 2 41000202
+1 0 0 0 0 0 3 2 41000302
+1 0 0 0 0 0 4 2 41000402
+1 0 0 0 0 0 5 2 41000502
+1 0 0 0 0 0 6 2 41000602
+1 0 0 0 0 0 7 2 41000702
+1 0 0 0 0 0 8 2 41000802
+1 0 0 0 0 0 9 2 41000902
+
-"Time = 1.000000
--0.150000 41000102.0000000000000
-0.150000 41000102.0000000000000
-0.450000 41000202.0000000000000
-0.750000 41000302.0000000000000
-1.050000 41000402.0000000000000
-1.350000 41000502.0000000000000
-1.650000 41000602.0000000000000
-1.950000 41000702.0000000000000
-2.250000 41000802.0000000000000
-2.550000 41000902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/fxx.zl b/CarpetAttic/Cart3dTest/test/octant/fxx.zl
index 08a7f0696..53e1fe356 100644
--- a/CarpetAttic/Cart3dTest/test/octant/fxx.zl
+++ b/CarpetAttic/Cart3dTest/test/octant/fxx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx z (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 41000100
+0 0 0 0 0 0 1 1 41000101
+0 0 0 0 0 0 1 2 41000102
+0 0 0 0 0 0 1 3 41000103
+0 0 0 0 0 0 1 4 41000104
+0 0 0 0 0 0 1 5 41000105
+0 0 0 0 0 0 1 6 41000106
+0 0 0 0 0 0 1 7 41000107
+0 0 0 0 0 0 1 8 41000108
+0 0 0 0 0 0 1 9 41000109
-"Time = 0.000000
--0.450000 41000100.0000000000000
--0.150000 41000101.0000000000000
-0.150000 41000102.0000000000000
-0.450000 41000103.0000000000000
-0.750000 41000104.0000000000000
-1.050000 41000105.0000000000000
-1.350000 41000106.0000000000000
-1.650000 41000107.0000000000000
-1.950000 41000108.0000000000000
-2.250000 41000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 41000103
+1 0 0 0 0 0 1 1 41000102
+1 0 0 0 0 0 1 2 41000102
+1 0 0 0 0 0 1 3 41000103
+1 0 0 0 0 0 1 4 41000104
+1 0 0 0 0 0 1 5 41000105
+1 0 0 0 0 0 1 6 41000106
+1 0 0 0 0 0 1 7 41000107
+1 0 0 0 0 0 1 8 41000108
+1 0 0 0 0 0 1 9 41000109
+
-"Time = 1.000000
--0.450000 41000103.0000000000000
--0.150000 41000102.0000000000000
-0.150000 41000102.0000000000000
-0.450000 41000103.0000000000000
-0.750000 41000104.0000000000000
-1.050000 41000105.0000000000000
-1.350000 41000106.0000000000000
-1.650000 41000107.0000000000000
-1.950000 41000108.0000000000000
-2.250000 41000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/fxy.xl b/CarpetAttic/Cart3dTest/test/octant/fxy.xl
index 80047c908..e5581373a 100644
--- a/CarpetAttic/Cart3dTest/test/octant/fxy.xl
+++ b/CarpetAttic/Cart3dTest/test/octant/fxy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy x (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 42000102
+0 0 0 0 0 1 1 2 42010102
+0 0 0 0 0 2 1 2 42020102
+0 0 0 0 0 3 1 2 42030102
+0 0 0 0 0 4 1 2 42040102
+0 0 0 0 0 5 1 2 42050102
+0 0 0 0 0 6 1 2 42060102
+0 0 0 0 0 7 1 2 42070102
+0 0 0 0 0 8 1 2 42080102
+0 0 0 0 0 9 1 2 42090102
-"Time = 0.000000
-0.150000 42000101.0000000000000
-0.450000 42010101.0000000000000
-0.750000 42020101.0000000000000
-1.050000 42030101.0000000000000
-1.350000 42040101.0000000000000
-1.650000 42050101.0000000000000
-1.950000 42060101.0000000000000
-2.250000 42070101.0000000000000
-2.550000 42080101.0000000000000
-2.850000 42090101.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 42000102
+1 0 0 0 0 1 1 2 42010102
+1 0 0 0 0 2 1 2 42020102
+1 0 0 0 0 3 1 2 42030102
+1 0 0 0 0 4 1 2 42040102
+1 0 0 0 0 5 1 2 42050102
+1 0 0 0 0 6 1 2 42060102
+1 0 0 0 0 7 1 2 42070102
+1 0 0 0 0 8 1 2 42080102
+1 0 0 0 0 9 1 2 42090102
+
-"Time = 1.000000
-0.150000 42000102.0000000000000
-0.450000 42010102.0000000000000
-0.750000 42020102.0000000000000
-1.050000 42030102.0000000000000
-1.350000 42040102.0000000000000
-1.650000 42050102.0000000000000
-1.950000 42060102.0000000000000
-2.250000 42070102.0000000000000
-2.550000 42080102.0000000000000
-2.850000 42090102.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/fxy.yl b/CarpetAttic/Cart3dTest/test/octant/fxy.yl
index 1069db8c5..1f59e92da 100644
--- a/CarpetAttic/Cart3dTest/test/octant/fxy.yl
+++ b/CarpetAttic/Cart3dTest/test/octant/fxy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy y (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 42000002
+0 0 0 0 0 0 1 2 42000102
+0 0 0 0 0 0 2 2 42000202
+0 0 0 0 0 0 3 2 42000302
+0 0 0 0 0 0 4 2 42000402
+0 0 0 0 0 0 5 2 42000502
+0 0 0 0 0 0 6 2 42000602
+0 0 0 0 0 0 7 2 42000702
+0 0 0 0 0 0 8 2 42000802
+0 0 0 0 0 0 9 2 42000902
-"Time = 0.000000
--0.150000 42000001.0000000000000
-0.150000 42000101.0000000000000
-0.450000 42000201.0000000000000
-0.750000 42000301.0000000000000
-1.050000 42000401.0000000000000
-1.350000 42000501.0000000000000
-1.650000 42000601.0000000000000
-1.950000 42000701.0000000000000
-2.250000 42000801.0000000000000
-2.550000 42000901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 -42000102
+1 0 0 0 0 0 1 2 42000102
+1 0 0 0 0 0 2 2 42000202
+1 0 0 0 0 0 3 2 42000302
+1 0 0 0 0 0 4 2 42000402
+1 0 0 0 0 0 5 2 42000502
+1 0 0 0 0 0 6 2 42000602
+1 0 0 0 0 0 7 2 42000702
+1 0 0 0 0 0 8 2 42000802
+1 0 0 0 0 0 9 2 42000902
+
-"Time = 1.000000
--0.150000 -42000102.0000000000000
-0.150000 42000102.0000000000000
-0.450000 42000202.0000000000000
-0.750000 42000302.0000000000000
-1.050000 42000402.0000000000000
-1.350000 42000502.0000000000000
-1.650000 42000602.0000000000000
-1.950000 42000702.0000000000000
-2.250000 42000802.0000000000000
-2.550000 42000902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/fxy.zl b/CarpetAttic/Cart3dTest/test/octant/fxy.zl
index bec79c0db..f0fd92291 100644
--- a/CarpetAttic/Cart3dTest/test/octant/fxy.zl
+++ b/CarpetAttic/Cart3dTest/test/octant/fxy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy z (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 42000100
+0 0 0 0 0 0 1 1 42000101
+0 0 0 0 0 0 1 2 42000102
+0 0 0 0 0 0 1 3 42000103
+0 0 0 0 0 0 1 4 42000104
+0 0 0 0 0 0 1 5 42000105
+0 0 0 0 0 0 1 6 42000106
+0 0 0 0 0 0 1 7 42000107
+0 0 0 0 0 0 1 8 42000108
+0 0 0 0 0 0 1 9 42000109
-"Time = 0.000000
--0.450000 42000100.0000000000000
--0.150000 42000101.0000000000000
-0.150000 42000102.0000000000000
-0.450000 42000103.0000000000000
-0.750000 42000104.0000000000000
-1.050000 42000105.0000000000000
-1.350000 42000106.0000000000000
-1.650000 42000107.0000000000000
-1.950000 42000108.0000000000000
-2.250000 42000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 42000103
+1 0 0 0 0 0 1 1 42000102
+1 0 0 0 0 0 1 2 42000102
+1 0 0 0 0 0 1 3 42000103
+1 0 0 0 0 0 1 4 42000104
+1 0 0 0 0 0 1 5 42000105
+1 0 0 0 0 0 1 6 42000106
+1 0 0 0 0 0 1 7 42000107
+1 0 0 0 0 0 1 8 42000108
+1 0 0 0 0 0 1 9 42000109
+
-"Time = 1.000000
--0.450000 42000103.0000000000000
--0.150000 42000102.0000000000000
-0.150000 42000102.0000000000000
-0.450000 42000103.0000000000000
-0.750000 42000104.0000000000000
-1.050000 42000105.0000000000000
-1.350000 42000106.0000000000000
-1.650000 42000107.0000000000000
-1.950000 42000108.0000000000000
-2.250000 42000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/fxz.xl b/CarpetAttic/Cart3dTest/test/octant/fxz.xl
index 512d980f0..f21c7d9c4 100644
--- a/CarpetAttic/Cart3dTest/test/octant/fxz.xl
+++ b/CarpetAttic/Cart3dTest/test/octant/fxz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz x (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 43000102
+0 0 0 0 0 1 1 2 43010102
+0 0 0 0 0 2 1 2 43020102
+0 0 0 0 0 3 1 2 43030102
+0 0 0 0 0 4 1 2 43040102
+0 0 0 0 0 5 1 2 43050102
+0 0 0 0 0 6 1 2 43060102
+0 0 0 0 0 7 1 2 43070102
+0 0 0 0 0 8 1 2 43080102
+0 0 0 0 0 9 1 2 43090102
-"Time = 0.000000
-0.150000 43000101.0000000000000
-0.450000 43010101.0000000000000
-0.750000 43020101.0000000000000
-1.050000 43030101.0000000000000
-1.350000 43040101.0000000000000
-1.650000 43050101.0000000000000
-1.950000 43060101.0000000000000
-2.250000 43070101.0000000000000
-2.550000 43080101.0000000000000
-2.850000 43090101.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 43000102
+1 0 0 0 0 1 1 2 43010102
+1 0 0 0 0 2 1 2 43020102
+1 0 0 0 0 3 1 2 43030102
+1 0 0 0 0 4 1 2 43040102
+1 0 0 0 0 5 1 2 43050102
+1 0 0 0 0 6 1 2 43060102
+1 0 0 0 0 7 1 2 43070102
+1 0 0 0 0 8 1 2 43080102
+1 0 0 0 0 9 1 2 43090102
+
-"Time = 1.000000
-0.150000 -43000102.0000000000000
-0.450000 -43010102.0000000000000
-0.750000 -43020102.0000000000000
-1.050000 -43030102.0000000000000
-1.350000 -43040102.0000000000000
-1.650000 -43050102.0000000000000
-1.950000 -43060102.0000000000000
-2.250000 -43070102.0000000000000
-2.550000 -43080102.0000000000000
-2.850000 -43090102.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/fxz.yl b/CarpetAttic/Cart3dTest/test/octant/fxz.yl
index 1f515b98e..dbddee7d5 100644
--- a/CarpetAttic/Cart3dTest/test/octant/fxz.yl
+++ b/CarpetAttic/Cart3dTest/test/octant/fxz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz y (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 43000002
+0 0 0 0 0 0 1 2 43000102
+0 0 0 0 0 0 2 2 43000202
+0 0 0 0 0 0 3 2 43000302
+0 0 0 0 0 0 4 2 43000402
+0 0 0 0 0 0 5 2 43000502
+0 0 0 0 0 0 6 2 43000602
+0 0 0 0 0 0 7 2 43000702
+0 0 0 0 0 0 8 2 43000802
+0 0 0 0 0 0 9 2 43000902
-"Time = 0.000000
--0.150000 43000001.0000000000000
-0.150000 43000101.0000000000000
-0.450000 43000201.0000000000000
-0.750000 43000301.0000000000000
-1.050000 43000401.0000000000000
-1.350000 43000501.0000000000000
-1.650000 43000601.0000000000000
-1.950000 43000701.0000000000000
-2.250000 43000801.0000000000000
-2.550000 43000901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 43000102
+1 0 0 0 0 0 1 2 43000102
+1 0 0 0 0 0 2 2 43000202
+1 0 0 0 0 0 3 2 43000302
+1 0 0 0 0 0 4 2 43000402
+1 0 0 0 0 0 5 2 43000502
+1 0 0 0 0 0 6 2 43000602
+1 0 0 0 0 0 7 2 43000702
+1 0 0 0 0 0 8 2 43000802
+1 0 0 0 0 0 9 2 43000902
+
-"Time = 1.000000
--0.150000 -43000102.0000000000000
-0.150000 -43000102.0000000000000
-0.450000 -43000202.0000000000000
-0.750000 -43000302.0000000000000
-1.050000 -43000402.0000000000000
-1.350000 -43000502.0000000000000
-1.650000 -43000602.0000000000000
-1.950000 -43000702.0000000000000
-2.250000 -43000802.0000000000000
-2.550000 -43000902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/fxz.zl b/CarpetAttic/Cart3dTest/test/octant/fxz.zl
index ac007dbe6..295d9dc7f 100644
--- a/CarpetAttic/Cart3dTest/test/octant/fxz.zl
+++ b/CarpetAttic/Cart3dTest/test/octant/fxz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz z (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 43000100
+0 0 0 0 0 0 1 1 43000101
+0 0 0 0 0 0 1 2 43000102
+0 0 0 0 0 0 1 3 43000103
+0 0 0 0 0 0 1 4 43000104
+0 0 0 0 0 0 1 5 43000105
+0 0 0 0 0 0 1 6 43000106
+0 0 0 0 0 0 1 7 43000107
+0 0 0 0 0 0 1 8 43000108
+0 0 0 0 0 0 1 9 43000109
-"Time = 0.000000
--0.450000 43000100.0000000000000
--0.150000 43000101.0000000000000
-0.150000 43000102.0000000000000
-0.450000 43000103.0000000000000
-0.750000 43000104.0000000000000
-1.050000 43000105.0000000000000
-1.350000 43000106.0000000000000
-1.650000 43000107.0000000000000
-1.950000 43000108.0000000000000
-2.250000 43000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 -43000103
+1 0 0 0 0 0 1 1 -43000102
+1 0 0 0 0 0 1 2 43000102
+1 0 0 0 0 0 1 3 43000103
+1 0 0 0 0 0 1 4 43000104
+1 0 0 0 0 0 1 5 43000105
+1 0 0 0 0 0 1 6 43000106
+1 0 0 0 0 0 1 7 43000107
+1 0 0 0 0 0 1 8 43000108
+1 0 0 0 0 0 1 9 43000109
+
-"Time = 1.000000
--0.450000 -43000103.0000000000000
--0.150000 -43000102.0000000000000
-0.150000 43000102.0000000000000
-0.450000 43000103.0000000000000
-0.750000 43000104.0000000000000
-1.050000 43000105.0000000000000
-1.350000 43000106.0000000000000
-1.650000 43000107.0000000000000
-1.950000 43000108.0000000000000
-2.250000 43000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/fyx.xl b/CarpetAttic/Cart3dTest/test/octant/fyx.xl
index 43c6d4d56..29d37aa19 100644
--- a/CarpetAttic/Cart3dTest/test/octant/fyx.xl
+++ b/CarpetAttic/Cart3dTest/test/octant/fyx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx x (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 44000102
+0 0 0 0 0 1 1 2 44010102
+0 0 0 0 0 2 1 2 44020102
+0 0 0 0 0 3 1 2 44030102
+0 0 0 0 0 4 1 2 44040102
+0 0 0 0 0 5 1 2 44050102
+0 0 0 0 0 6 1 2 44060102
+0 0 0 0 0 7 1 2 44070102
+0 0 0 0 0 8 1 2 44080102
+0 0 0 0 0 9 1 2 44090102
-"Time = 0.000000
-0.150000 44000101.0000000000000
-0.450000 44010101.0000000000000
-0.750000 44020101.0000000000000
-1.050000 44030101.0000000000000
-1.350000 44040101.0000000000000
-1.650000 44050101.0000000000000
-1.950000 44060101.0000000000000
-2.250000 44070101.0000000000000
-2.550000 44080101.0000000000000
-2.850000 44090101.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 44000102
+1 0 0 0 0 1 1 2 44010102
+1 0 0 0 0 2 1 2 44020102
+1 0 0 0 0 3 1 2 44030102
+1 0 0 0 0 4 1 2 44040102
+1 0 0 0 0 5 1 2 44050102
+1 0 0 0 0 6 1 2 44060102
+1 0 0 0 0 7 1 2 44070102
+1 0 0 0 0 8 1 2 44080102
+1 0 0 0 0 9 1 2 44090102
+
-"Time = 1.000000
-0.150000 44000102.0000000000000
-0.450000 44010102.0000000000000
-0.750000 44020102.0000000000000
-1.050000 44030102.0000000000000
-1.350000 44040102.0000000000000
-1.650000 44050102.0000000000000
-1.950000 44060102.0000000000000
-2.250000 44070102.0000000000000
-2.550000 44080102.0000000000000
-2.850000 44090102.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/fyx.yl b/CarpetAttic/Cart3dTest/test/octant/fyx.yl
index 8fff3d629..4fb83fcc6 100644
--- a/CarpetAttic/Cart3dTest/test/octant/fyx.yl
+++ b/CarpetAttic/Cart3dTest/test/octant/fyx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx y (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 44000002
+0 0 0 0 0 0 1 2 44000102
+0 0 0 0 0 0 2 2 44000202
+0 0 0 0 0 0 3 2 44000302
+0 0 0 0 0 0 4 2 44000402
+0 0 0 0 0 0 5 2 44000502
+0 0 0 0 0 0 6 2 44000602
+0 0 0 0 0 0 7 2 44000702
+0 0 0 0 0 0 8 2 44000802
+0 0 0 0 0 0 9 2 44000902
-"Time = 0.000000
--0.150000 44000001.0000000000000
-0.150000 44000101.0000000000000
-0.450000 44000201.0000000000000
-0.750000 44000301.0000000000000
-1.050000 44000401.0000000000000
-1.350000 44000501.0000000000000
-1.650000 44000601.0000000000000
-1.950000 44000701.0000000000000
-2.250000 44000801.0000000000000
-2.550000 44000901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 -44000102
+1 0 0 0 0 0 1 2 44000102
+1 0 0 0 0 0 2 2 44000202
+1 0 0 0 0 0 3 2 44000302
+1 0 0 0 0 0 4 2 44000402
+1 0 0 0 0 0 5 2 44000502
+1 0 0 0 0 0 6 2 44000602
+1 0 0 0 0 0 7 2 44000702
+1 0 0 0 0 0 8 2 44000802
+1 0 0 0 0 0 9 2 44000902
+
-"Time = 1.000000
--0.150000 -44000102.0000000000000
-0.150000 44000102.0000000000000
-0.450000 44000202.0000000000000
-0.750000 44000302.0000000000000
-1.050000 44000402.0000000000000
-1.350000 44000502.0000000000000
-1.650000 44000602.0000000000000
-1.950000 44000702.0000000000000
-2.250000 44000802.0000000000000
-2.550000 44000902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/fyx.zl b/CarpetAttic/Cart3dTest/test/octant/fyx.zl
index d3f6486c2..5555b7562 100644
--- a/CarpetAttic/Cart3dTest/test/octant/fyx.zl
+++ b/CarpetAttic/Cart3dTest/test/octant/fyx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx z (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 44000100
+0 0 0 0 0 0 1 1 44000101
+0 0 0 0 0 0 1 2 44000102
+0 0 0 0 0 0 1 3 44000103
+0 0 0 0 0 0 1 4 44000104
+0 0 0 0 0 0 1 5 44000105
+0 0 0 0 0 0 1 6 44000106
+0 0 0 0 0 0 1 7 44000107
+0 0 0 0 0 0 1 8 44000108
+0 0 0 0 0 0 1 9 44000109
-"Time = 0.000000
--0.450000 44000100.0000000000000
--0.150000 44000101.0000000000000
-0.150000 44000102.0000000000000
-0.450000 44000103.0000000000000
-0.750000 44000104.0000000000000
-1.050000 44000105.0000000000000
-1.350000 44000106.0000000000000
-1.650000 44000107.0000000000000
-1.950000 44000108.0000000000000
-2.250000 44000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 44000103
+1 0 0 0 0 0 1 1 44000102
+1 0 0 0 0 0 1 2 44000102
+1 0 0 0 0 0 1 3 44000103
+1 0 0 0 0 0 1 4 44000104
+1 0 0 0 0 0 1 5 44000105
+1 0 0 0 0 0 1 6 44000106
+1 0 0 0 0 0 1 7 44000107
+1 0 0 0 0 0 1 8 44000108
+1 0 0 0 0 0 1 9 44000109
+
-"Time = 1.000000
--0.450000 44000103.0000000000000
--0.150000 44000102.0000000000000
-0.150000 44000102.0000000000000
-0.450000 44000103.0000000000000
-0.750000 44000104.0000000000000
-1.050000 44000105.0000000000000
-1.350000 44000106.0000000000000
-1.650000 44000107.0000000000000
-1.950000 44000108.0000000000000
-2.250000 44000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/fyy.xl b/CarpetAttic/Cart3dTest/test/octant/fyy.xl
index 466d2a6a1..4c99ee513 100644
--- a/CarpetAttic/Cart3dTest/test/octant/fyy.xl
+++ b/CarpetAttic/Cart3dTest/test/octant/fyy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy x (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 45000102
+0 0 0 0 0 1 1 2 45010102
+0 0 0 0 0 2 1 2 45020102
+0 0 0 0 0 3 1 2 45030102
+0 0 0 0 0 4 1 2 45040102
+0 0 0 0 0 5 1 2 45050102
+0 0 0 0 0 6 1 2 45060102
+0 0 0 0 0 7 1 2 45070102
+0 0 0 0 0 8 1 2 45080102
+0 0 0 0 0 9 1 2 45090102
-"Time = 0.000000
-0.150000 45000101.0000000000000
-0.450000 45010101.0000000000000
-0.750000 45020101.0000000000000
-1.050000 45030101.0000000000000
-1.350000 45040101.0000000000000
-1.650000 45050101.0000000000000
-1.950000 45060101.0000000000000
-2.250000 45070101.0000000000000
-2.550000 45080101.0000000000000
-2.850000 45090101.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 45000102
+1 0 0 0 0 1 1 2 45010102
+1 0 0 0 0 2 1 2 45020102
+1 0 0 0 0 3 1 2 45030102
+1 0 0 0 0 4 1 2 45040102
+1 0 0 0 0 5 1 2 45050102
+1 0 0 0 0 6 1 2 45060102
+1 0 0 0 0 7 1 2 45070102
+1 0 0 0 0 8 1 2 45080102
+1 0 0 0 0 9 1 2 45090102
+
-"Time = 1.000000
-0.150000 45000102.0000000000000
-0.450000 45010102.0000000000000
-0.750000 45020102.0000000000000
-1.050000 45030102.0000000000000
-1.350000 45040102.0000000000000
-1.650000 45050102.0000000000000
-1.950000 45060102.0000000000000
-2.250000 45070102.0000000000000
-2.550000 45080102.0000000000000
-2.850000 45090102.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/fyy.yl b/CarpetAttic/Cart3dTest/test/octant/fyy.yl
index 9c9eac64a..fa9aa1f77 100644
--- a/CarpetAttic/Cart3dTest/test/octant/fyy.yl
+++ b/CarpetAttic/Cart3dTest/test/octant/fyy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy y (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 45000002
+0 0 0 0 0 0 1 2 45000102
+0 0 0 0 0 0 2 2 45000202
+0 0 0 0 0 0 3 2 45000302
+0 0 0 0 0 0 4 2 45000402
+0 0 0 0 0 0 5 2 45000502
+0 0 0 0 0 0 6 2 45000602
+0 0 0 0 0 0 7 2 45000702
+0 0 0 0 0 0 8 2 45000802
+0 0 0 0 0 0 9 2 45000902
-"Time = 0.000000
--0.150000 45000001.0000000000000
-0.150000 45000101.0000000000000
-0.450000 45000201.0000000000000
-0.750000 45000301.0000000000000
-1.050000 45000401.0000000000000
-1.350000 45000501.0000000000000
-1.650000 45000601.0000000000000
-1.950000 45000701.0000000000000
-2.250000 45000801.0000000000000
-2.550000 45000901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 45000102
+1 0 0 0 0 0 1 2 45000102
+1 0 0 0 0 0 2 2 45000202
+1 0 0 0 0 0 3 2 45000302
+1 0 0 0 0 0 4 2 45000402
+1 0 0 0 0 0 5 2 45000502
+1 0 0 0 0 0 6 2 45000602
+1 0 0 0 0 0 7 2 45000702
+1 0 0 0 0 0 8 2 45000802
+1 0 0 0 0 0 9 2 45000902
+
-"Time = 1.000000
--0.150000 45000102.0000000000000
-0.150000 45000102.0000000000000
-0.450000 45000202.0000000000000
-0.750000 45000302.0000000000000
-1.050000 45000402.0000000000000
-1.350000 45000502.0000000000000
-1.650000 45000602.0000000000000
-1.950000 45000702.0000000000000
-2.250000 45000802.0000000000000
-2.550000 45000902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/fyy.zl b/CarpetAttic/Cart3dTest/test/octant/fyy.zl
index 73b80ebb7..b96e2d846 100644
--- a/CarpetAttic/Cart3dTest/test/octant/fyy.zl
+++ b/CarpetAttic/Cart3dTest/test/octant/fyy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy z (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 45000100
+0 0 0 0 0 0 1 1 45000101
+0 0 0 0 0 0 1 2 45000102
+0 0 0 0 0 0 1 3 45000103
+0 0 0 0 0 0 1 4 45000104
+0 0 0 0 0 0 1 5 45000105
+0 0 0 0 0 0 1 6 45000106
+0 0 0 0 0 0 1 7 45000107
+0 0 0 0 0 0 1 8 45000108
+0 0 0 0 0 0 1 9 45000109
-"Time = 0.000000
--0.450000 45000100.0000000000000
--0.150000 45000101.0000000000000
-0.150000 45000102.0000000000000
-0.450000 45000103.0000000000000
-0.750000 45000104.0000000000000
-1.050000 45000105.0000000000000
-1.350000 45000106.0000000000000
-1.650000 45000107.0000000000000
-1.950000 45000108.0000000000000
-2.250000 45000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 45000103
+1 0 0 0 0 0 1 1 45000102
+1 0 0 0 0 0 1 2 45000102
+1 0 0 0 0 0 1 3 45000103
+1 0 0 0 0 0 1 4 45000104
+1 0 0 0 0 0 1 5 45000105
+1 0 0 0 0 0 1 6 45000106
+1 0 0 0 0 0 1 7 45000107
+1 0 0 0 0 0 1 8 45000108
+1 0 0 0 0 0 1 9 45000109
+
-"Time = 1.000000
--0.450000 45000103.0000000000000
--0.150000 45000102.0000000000000
-0.150000 45000102.0000000000000
-0.450000 45000103.0000000000000
-0.750000 45000104.0000000000000
-1.050000 45000105.0000000000000
-1.350000 45000106.0000000000000
-1.650000 45000107.0000000000000
-1.950000 45000108.0000000000000
-2.250000 45000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/fyz.xl b/CarpetAttic/Cart3dTest/test/octant/fyz.xl
index 4089d3b08..63279046f 100644
--- a/CarpetAttic/Cart3dTest/test/octant/fyz.xl
+++ b/CarpetAttic/Cart3dTest/test/octant/fyz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz x (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 46000102
+0 0 0 0 0 1 1 2 46010102
+0 0 0 0 0 2 1 2 46020102
+0 0 0 0 0 3 1 2 46030102
+0 0 0 0 0 4 1 2 46040102
+0 0 0 0 0 5 1 2 46050102
+0 0 0 0 0 6 1 2 46060102
+0 0 0 0 0 7 1 2 46070102
+0 0 0 0 0 8 1 2 46080102
+0 0 0 0 0 9 1 2 46090102
-"Time = 0.000000
-0.150000 46000101.0000000000000
-0.450000 46010101.0000000000000
-0.750000 46020101.0000000000000
-1.050000 46030101.0000000000000
-1.350000 46040101.0000000000000
-1.650000 46050101.0000000000000
-1.950000 46060101.0000000000000
-2.250000 46070101.0000000000000
-2.550000 46080101.0000000000000
-2.850000 46090101.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 46000102
+1 0 0 0 0 1 1 2 46010102
+1 0 0 0 0 2 1 2 46020102
+1 0 0 0 0 3 1 2 46030102
+1 0 0 0 0 4 1 2 46040102
+1 0 0 0 0 5 1 2 46050102
+1 0 0 0 0 6 1 2 46060102
+1 0 0 0 0 7 1 2 46070102
+1 0 0 0 0 8 1 2 46080102
+1 0 0 0 0 9 1 2 46090102
+
-"Time = 1.000000
-0.150000 -46000102.0000000000000
-0.450000 -46010102.0000000000000
-0.750000 -46020102.0000000000000
-1.050000 -46030102.0000000000000
-1.350000 -46040102.0000000000000
-1.650000 -46050102.0000000000000
-1.950000 -46060102.0000000000000
-2.250000 -46070102.0000000000000
-2.550000 -46080102.0000000000000
-2.850000 -46090102.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/fyz.yl b/CarpetAttic/Cart3dTest/test/octant/fyz.yl
index 0cbe959d5..99e1178d6 100644
--- a/CarpetAttic/Cart3dTest/test/octant/fyz.yl
+++ b/CarpetAttic/Cart3dTest/test/octant/fyz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz y (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 46000002
+0 0 0 0 0 0 1 2 46000102
+0 0 0 0 0 0 2 2 46000202
+0 0 0 0 0 0 3 2 46000302
+0 0 0 0 0 0 4 2 46000402
+0 0 0 0 0 0 5 2 46000502
+0 0 0 0 0 0 6 2 46000602
+0 0 0 0 0 0 7 2 46000702
+0 0 0 0 0 0 8 2 46000802
+0 0 0 0 0 0 9 2 46000902
-"Time = 0.000000
--0.150000 46000001.0000000000000
-0.150000 46000101.0000000000000
-0.450000 46000201.0000000000000
-0.750000 46000301.0000000000000
-1.050000 46000401.0000000000000
-1.350000 46000501.0000000000000
-1.650000 46000601.0000000000000
-1.950000 46000701.0000000000000
-2.250000 46000801.0000000000000
-2.550000 46000901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 -46000102
+1 0 0 0 0 0 1 2 46000102
+1 0 0 0 0 0 2 2 46000202
+1 0 0 0 0 0 3 2 46000302
+1 0 0 0 0 0 4 2 46000402
+1 0 0 0 0 0 5 2 46000502
+1 0 0 0 0 0 6 2 46000602
+1 0 0 0 0 0 7 2 46000702
+1 0 0 0 0 0 8 2 46000802
+1 0 0 0 0 0 9 2 46000902
+
-"Time = 1.000000
--0.150000 46000102.0000000000000
-0.150000 -46000102.0000000000000
-0.450000 -46000202.0000000000000
-0.750000 -46000302.0000000000000
-1.050000 -46000402.0000000000000
-1.350000 -46000502.0000000000000
-1.650000 -46000602.0000000000000
-1.950000 -46000702.0000000000000
-2.250000 -46000802.0000000000000
-2.550000 -46000902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/fyz.zl b/CarpetAttic/Cart3dTest/test/octant/fyz.zl
index fc4f32118..56cf066b9 100644
--- a/CarpetAttic/Cart3dTest/test/octant/fyz.zl
+++ b/CarpetAttic/Cart3dTest/test/octant/fyz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz z (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 46000100
+0 0 0 0 0 0 1 1 46000101
+0 0 0 0 0 0 1 2 46000102
+0 0 0 0 0 0 1 3 46000103
+0 0 0 0 0 0 1 4 46000104
+0 0 0 0 0 0 1 5 46000105
+0 0 0 0 0 0 1 6 46000106
+0 0 0 0 0 0 1 7 46000107
+0 0 0 0 0 0 1 8 46000108
+0 0 0 0 0 0 1 9 46000109
-"Time = 0.000000
--0.450000 46000100.0000000000000
--0.150000 46000101.0000000000000
-0.150000 46000102.0000000000000
-0.450000 46000103.0000000000000
-0.750000 46000104.0000000000000
-1.050000 46000105.0000000000000
-1.350000 46000106.0000000000000
-1.650000 46000107.0000000000000
-1.950000 46000108.0000000000000
-2.250000 46000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 -46000103
+1 0 0 0 0 0 1 1 -46000102
+1 0 0 0 0 0 1 2 46000102
+1 0 0 0 0 0 1 3 46000103
+1 0 0 0 0 0 1 4 46000104
+1 0 0 0 0 0 1 5 46000105
+1 0 0 0 0 0 1 6 46000106
+1 0 0 0 0 0 1 7 46000107
+1 0 0 0 0 0 1 8 46000108
+1 0 0 0 0 0 1 9 46000109
+
-"Time = 1.000000
--0.450000 -46000103.0000000000000
--0.150000 -46000102.0000000000000
-0.150000 46000102.0000000000000
-0.450000 46000103.0000000000000
-0.750000 46000104.0000000000000
-1.050000 46000105.0000000000000
-1.350000 46000106.0000000000000
-1.650000 46000107.0000000000000
-1.950000 46000108.0000000000000
-2.250000 46000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/fzx.xl b/CarpetAttic/Cart3dTest/test/octant/fzx.xl
index cc619669a..77ebb762b 100644
--- a/CarpetAttic/Cart3dTest/test/octant/fzx.xl
+++ b/CarpetAttic/Cart3dTest/test/octant/fzx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx x (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 47000102
+0 0 0 0 0 1 1 2 47010102
+0 0 0 0 0 2 1 2 47020102
+0 0 0 0 0 3 1 2 47030102
+0 0 0 0 0 4 1 2 47040102
+0 0 0 0 0 5 1 2 47050102
+0 0 0 0 0 6 1 2 47060102
+0 0 0 0 0 7 1 2 47070102
+0 0 0 0 0 8 1 2 47080102
+0 0 0 0 0 9 1 2 47090102
-"Time = 0.000000
-0.150000 47000101.0000000000000
-0.450000 47010101.0000000000000
-0.750000 47020101.0000000000000
-1.050000 47030101.0000000000000
-1.350000 47040101.0000000000000
-1.650000 47050101.0000000000000
-1.950000 47060101.0000000000000
-2.250000 47070101.0000000000000
-2.550000 47080101.0000000000000
-2.850000 47090101.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 47000102
+1 0 0 0 0 1 1 2 47010102
+1 0 0 0 0 2 1 2 47020102
+1 0 0 0 0 3 1 2 47030102
+1 0 0 0 0 4 1 2 47040102
+1 0 0 0 0 5 1 2 47050102
+1 0 0 0 0 6 1 2 47060102
+1 0 0 0 0 7 1 2 47070102
+1 0 0 0 0 8 1 2 47080102
+1 0 0 0 0 9 1 2 47090102
+
-"Time = 1.000000
-0.150000 -47000102.0000000000000
-0.450000 -47010102.0000000000000
-0.750000 -47020102.0000000000000
-1.050000 -47030102.0000000000000
-1.350000 -47040102.0000000000000
-1.650000 -47050102.0000000000000
-1.950000 -47060102.0000000000000
-2.250000 -47070102.0000000000000
-2.550000 -47080102.0000000000000
-2.850000 -47090102.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/fzx.yl b/CarpetAttic/Cart3dTest/test/octant/fzx.yl
index e326f11e7..04a7c2525 100644
--- a/CarpetAttic/Cart3dTest/test/octant/fzx.yl
+++ b/CarpetAttic/Cart3dTest/test/octant/fzx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx y (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 47000002
+0 0 0 0 0 0 1 2 47000102
+0 0 0 0 0 0 2 2 47000202
+0 0 0 0 0 0 3 2 47000302
+0 0 0 0 0 0 4 2 47000402
+0 0 0 0 0 0 5 2 47000502
+0 0 0 0 0 0 6 2 47000602
+0 0 0 0 0 0 7 2 47000702
+0 0 0 0 0 0 8 2 47000802
+0 0 0 0 0 0 9 2 47000902
-"Time = 0.000000
--0.150000 47000001.0000000000000
-0.150000 47000101.0000000000000
-0.450000 47000201.0000000000000
-0.750000 47000301.0000000000000
-1.050000 47000401.0000000000000
-1.350000 47000501.0000000000000
-1.650000 47000601.0000000000000
-1.950000 47000701.0000000000000
-2.250000 47000801.0000000000000
-2.550000 47000901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 47000102
+1 0 0 0 0 0 1 2 47000102
+1 0 0 0 0 0 2 2 47000202
+1 0 0 0 0 0 3 2 47000302
+1 0 0 0 0 0 4 2 47000402
+1 0 0 0 0 0 5 2 47000502
+1 0 0 0 0 0 6 2 47000602
+1 0 0 0 0 0 7 2 47000702
+1 0 0 0 0 0 8 2 47000802
+1 0 0 0 0 0 9 2 47000902
+
-"Time = 1.000000
--0.150000 -47000102.0000000000000
-0.150000 -47000102.0000000000000
-0.450000 -47000202.0000000000000
-0.750000 -47000302.0000000000000
-1.050000 -47000402.0000000000000
-1.350000 -47000502.0000000000000
-1.650000 -47000602.0000000000000
-1.950000 -47000702.0000000000000
-2.250000 -47000802.0000000000000
-2.550000 -47000902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/fzx.zl b/CarpetAttic/Cart3dTest/test/octant/fzx.zl
index 34913f6b3..024a64af4 100644
--- a/CarpetAttic/Cart3dTest/test/octant/fzx.zl
+++ b/CarpetAttic/Cart3dTest/test/octant/fzx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx z (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 47000100
+0 0 0 0 0 0 1 1 47000101
+0 0 0 0 0 0 1 2 47000102
+0 0 0 0 0 0 1 3 47000103
+0 0 0 0 0 0 1 4 47000104
+0 0 0 0 0 0 1 5 47000105
+0 0 0 0 0 0 1 6 47000106
+0 0 0 0 0 0 1 7 47000107
+0 0 0 0 0 0 1 8 47000108
+0 0 0 0 0 0 1 9 47000109
-"Time = 0.000000
--0.450000 47000100.0000000000000
--0.150000 47000101.0000000000000
-0.150000 47000102.0000000000000
-0.450000 47000103.0000000000000
-0.750000 47000104.0000000000000
-1.050000 47000105.0000000000000
-1.350000 47000106.0000000000000
-1.650000 47000107.0000000000000
-1.950000 47000108.0000000000000
-2.250000 47000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 -47000103
+1 0 0 0 0 0 1 1 -47000102
+1 0 0 0 0 0 1 2 47000102
+1 0 0 0 0 0 1 3 47000103
+1 0 0 0 0 0 1 4 47000104
+1 0 0 0 0 0 1 5 47000105
+1 0 0 0 0 0 1 6 47000106
+1 0 0 0 0 0 1 7 47000107
+1 0 0 0 0 0 1 8 47000108
+1 0 0 0 0 0 1 9 47000109
+
-"Time = 1.000000
--0.450000 -47000103.0000000000000
--0.150000 -47000102.0000000000000
-0.150000 47000102.0000000000000
-0.450000 47000103.0000000000000
-0.750000 47000104.0000000000000
-1.050000 47000105.0000000000000
-1.350000 47000106.0000000000000
-1.650000 47000107.0000000000000
-1.950000 47000108.0000000000000
-2.250000 47000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/fzy.xl b/CarpetAttic/Cart3dTest/test/octant/fzy.xl
index e632371a7..ef9d32810 100644
--- a/CarpetAttic/Cart3dTest/test/octant/fzy.xl
+++ b/CarpetAttic/Cart3dTest/test/octant/fzy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy x (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 48000102
+0 0 0 0 0 1 1 2 48010102
+0 0 0 0 0 2 1 2 48020102
+0 0 0 0 0 3 1 2 48030102
+0 0 0 0 0 4 1 2 48040102
+0 0 0 0 0 5 1 2 48050102
+0 0 0 0 0 6 1 2 48060102
+0 0 0 0 0 7 1 2 48070102
+0 0 0 0 0 8 1 2 48080102
+0 0 0 0 0 9 1 2 48090102
-"Time = 0.000000
-0.150000 48000101.0000000000000
-0.450000 48010101.0000000000000
-0.750000 48020101.0000000000000
-1.050000 48030101.0000000000000
-1.350000 48040101.0000000000000
-1.650000 48050101.0000000000000
-1.950000 48060101.0000000000000
-2.250000 48070101.0000000000000
-2.550000 48080101.0000000000000
-2.850000 48090101.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 48000102
+1 0 0 0 0 1 1 2 48010102
+1 0 0 0 0 2 1 2 48020102
+1 0 0 0 0 3 1 2 48030102
+1 0 0 0 0 4 1 2 48040102
+1 0 0 0 0 5 1 2 48050102
+1 0 0 0 0 6 1 2 48060102
+1 0 0 0 0 7 1 2 48070102
+1 0 0 0 0 8 1 2 48080102
+1 0 0 0 0 9 1 2 48090102
+
-"Time = 1.000000
-0.150000 -48000102.0000000000000
-0.450000 -48010102.0000000000000
-0.750000 -48020102.0000000000000
-1.050000 -48030102.0000000000000
-1.350000 -48040102.0000000000000
-1.650000 -48050102.0000000000000
-1.950000 -48060102.0000000000000
-2.250000 -48070102.0000000000000
-2.550000 -48080102.0000000000000
-2.850000 -48090102.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/fzy.yl b/CarpetAttic/Cart3dTest/test/octant/fzy.yl
index a43161590..839db63ae 100644
--- a/CarpetAttic/Cart3dTest/test/octant/fzy.yl
+++ b/CarpetAttic/Cart3dTest/test/octant/fzy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy y (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 48000002
+0 0 0 0 0 0 1 2 48000102
+0 0 0 0 0 0 2 2 48000202
+0 0 0 0 0 0 3 2 48000302
+0 0 0 0 0 0 4 2 48000402
+0 0 0 0 0 0 5 2 48000502
+0 0 0 0 0 0 6 2 48000602
+0 0 0 0 0 0 7 2 48000702
+0 0 0 0 0 0 8 2 48000802
+0 0 0 0 0 0 9 2 48000902
-"Time = 0.000000
--0.150000 48000001.0000000000000
-0.150000 48000101.0000000000000
-0.450000 48000201.0000000000000
-0.750000 48000301.0000000000000
-1.050000 48000401.0000000000000
-1.350000 48000501.0000000000000
-1.650000 48000601.0000000000000
-1.950000 48000701.0000000000000
-2.250000 48000801.0000000000000
-2.550000 48000901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 -48000102
+1 0 0 0 0 0 1 2 48000102
+1 0 0 0 0 0 2 2 48000202
+1 0 0 0 0 0 3 2 48000302
+1 0 0 0 0 0 4 2 48000402
+1 0 0 0 0 0 5 2 48000502
+1 0 0 0 0 0 6 2 48000602
+1 0 0 0 0 0 7 2 48000702
+1 0 0 0 0 0 8 2 48000802
+1 0 0 0 0 0 9 2 48000902
+
-"Time = 1.000000
--0.150000 48000102.0000000000000
-0.150000 -48000102.0000000000000
-0.450000 -48000202.0000000000000
-0.750000 -48000302.0000000000000
-1.050000 -48000402.0000000000000
-1.350000 -48000502.0000000000000
-1.650000 -48000602.0000000000000
-1.950000 -48000702.0000000000000
-2.250000 -48000802.0000000000000
-2.550000 -48000902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/fzy.zl b/CarpetAttic/Cart3dTest/test/octant/fzy.zl
index 2e3f494af..4b0e6deab 100644
--- a/CarpetAttic/Cart3dTest/test/octant/fzy.zl
+++ b/CarpetAttic/Cart3dTest/test/octant/fzy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy z (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 48000100
+0 0 0 0 0 0 1 1 48000101
+0 0 0 0 0 0 1 2 48000102
+0 0 0 0 0 0 1 3 48000103
+0 0 0 0 0 0 1 4 48000104
+0 0 0 0 0 0 1 5 48000105
+0 0 0 0 0 0 1 6 48000106
+0 0 0 0 0 0 1 7 48000107
+0 0 0 0 0 0 1 8 48000108
+0 0 0 0 0 0 1 9 48000109
-"Time = 0.000000
--0.450000 48000100.0000000000000
--0.150000 48000101.0000000000000
-0.150000 48000102.0000000000000
-0.450000 48000103.0000000000000
-0.750000 48000104.0000000000000
-1.050000 48000105.0000000000000
-1.350000 48000106.0000000000000
-1.650000 48000107.0000000000000
-1.950000 48000108.0000000000000
-2.250000 48000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 -48000103
+1 0 0 0 0 0 1 1 -48000102
+1 0 0 0 0 0 1 2 48000102
+1 0 0 0 0 0 1 3 48000103
+1 0 0 0 0 0 1 4 48000104
+1 0 0 0 0 0 1 5 48000105
+1 0 0 0 0 0 1 6 48000106
+1 0 0 0 0 0 1 7 48000107
+1 0 0 0 0 0 1 8 48000108
+1 0 0 0 0 0 1 9 48000109
+
-"Time = 1.000000
--0.450000 -48000103.0000000000000
--0.150000 -48000102.0000000000000
-0.150000 48000102.0000000000000
-0.450000 48000103.0000000000000
-0.750000 48000104.0000000000000
-1.050000 48000105.0000000000000
-1.350000 48000106.0000000000000
-1.650000 48000107.0000000000000
-1.950000 48000108.0000000000000
-2.250000 48000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/fzz.xl b/CarpetAttic/Cart3dTest/test/octant/fzz.xl
index 17a165166..ee3f5002e 100644
--- a/CarpetAttic/Cart3dTest/test/octant/fzz.xl
+++ b/CarpetAttic/Cart3dTest/test/octant/fzz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz x (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 49000102
+0 0 0 0 0 1 1 2 49010102
+0 0 0 0 0 2 1 2 49020102
+0 0 0 0 0 3 1 2 49030102
+0 0 0 0 0 4 1 2 49040102
+0 0 0 0 0 5 1 2 49050102
+0 0 0 0 0 6 1 2 49060102
+0 0 0 0 0 7 1 2 49070102
+0 0 0 0 0 8 1 2 49080102
+0 0 0 0 0 9 1 2 49090102
-"Time = 0.000000
-0.150000 49000101.0000000000000
-0.450000 49010101.0000000000000
-0.750000 49020101.0000000000000
-1.050000 49030101.0000000000000
-1.350000 49040101.0000000000000
-1.650000 49050101.0000000000000
-1.950000 49060101.0000000000000
-2.250000 49070101.0000000000000
-2.550000 49080101.0000000000000
-2.850000 49090101.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 49000102
+1 0 0 0 0 1 1 2 49010102
+1 0 0 0 0 2 1 2 49020102
+1 0 0 0 0 3 1 2 49030102
+1 0 0 0 0 4 1 2 49040102
+1 0 0 0 0 5 1 2 49050102
+1 0 0 0 0 6 1 2 49060102
+1 0 0 0 0 7 1 2 49070102
+1 0 0 0 0 8 1 2 49080102
+1 0 0 0 0 9 1 2 49090102
+
-"Time = 1.000000
-0.150000 49000102.0000000000000
-0.450000 49010102.0000000000000
-0.750000 49020102.0000000000000
-1.050000 49030102.0000000000000
-1.350000 49040102.0000000000000
-1.650000 49050102.0000000000000
-1.950000 49060102.0000000000000
-2.250000 49070102.0000000000000
-2.550000 49080102.0000000000000
-2.850000 49090102.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/fzz.yl b/CarpetAttic/Cart3dTest/test/octant/fzz.yl
index 4e82d1c21..955da7993 100644
--- a/CarpetAttic/Cart3dTest/test/octant/fzz.yl
+++ b/CarpetAttic/Cart3dTest/test/octant/fzz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz y (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 49000002
+0 0 0 0 0 0 1 2 49000102
+0 0 0 0 0 0 2 2 49000202
+0 0 0 0 0 0 3 2 49000302
+0 0 0 0 0 0 4 2 49000402
+0 0 0 0 0 0 5 2 49000502
+0 0 0 0 0 0 6 2 49000602
+0 0 0 0 0 0 7 2 49000702
+0 0 0 0 0 0 8 2 49000802
+0 0 0 0 0 0 9 2 49000902
-"Time = 0.000000
--0.150000 49000001.0000000000000
-0.150000 49000101.0000000000000
-0.450000 49000201.0000000000000
-0.750000 49000301.0000000000000
-1.050000 49000401.0000000000000
-1.350000 49000501.0000000000000
-1.650000 49000601.0000000000000
-1.950000 49000701.0000000000000
-2.250000 49000801.0000000000000
-2.550000 49000901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 49000102
+1 0 0 0 0 0 1 2 49000102
+1 0 0 0 0 0 2 2 49000202
+1 0 0 0 0 0 3 2 49000302
+1 0 0 0 0 0 4 2 49000402
+1 0 0 0 0 0 5 2 49000502
+1 0 0 0 0 0 6 2 49000602
+1 0 0 0 0 0 7 2 49000702
+1 0 0 0 0 0 8 2 49000802
+1 0 0 0 0 0 9 2 49000902
+
-"Time = 1.000000
--0.150000 49000102.0000000000000
-0.150000 49000102.0000000000000
-0.450000 49000202.0000000000000
-0.750000 49000302.0000000000000
-1.050000 49000402.0000000000000
-1.350000 49000502.0000000000000
-1.650000 49000602.0000000000000
-1.950000 49000702.0000000000000
-2.250000 49000802.0000000000000
-2.550000 49000902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/fzz.zl b/CarpetAttic/Cart3dTest/test/octant/fzz.zl
index f8df0bd8a..045833d97 100644
--- a/CarpetAttic/Cart3dTest/test/octant/fzz.zl
+++ b/CarpetAttic/Cart3dTest/test/octant/fzz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz z (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 49000100
+0 0 0 0 0 0 1 1 49000101
+0 0 0 0 0 0 1 2 49000102
+0 0 0 0 0 0 1 3 49000103
+0 0 0 0 0 0 1 4 49000104
+0 0 0 0 0 0 1 5 49000105
+0 0 0 0 0 0 1 6 49000106
+0 0 0 0 0 0 1 7 49000107
+0 0 0 0 0 0 1 8 49000108
+0 0 0 0 0 0 1 9 49000109
-"Time = 0.000000
--0.450000 49000100.0000000000000
--0.150000 49000101.0000000000000
-0.150000 49000102.0000000000000
-0.450000 49000103.0000000000000
-0.750000 49000104.0000000000000
-1.050000 49000105.0000000000000
-1.350000 49000106.0000000000000
-1.650000 49000107.0000000000000
-1.950000 49000108.0000000000000
-2.250000 49000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 49000103
+1 0 0 0 0 0 1 1 49000102
+1 0 0 0 0 0 1 2 49000102
+1 0 0 0 0 0 1 3 49000103
+1 0 0 0 0 0 1 4 49000104
+1 0 0 0 0 0 1 5 49000105
+1 0 0 0 0 0 1 6 49000106
+1 0 0 0 0 0 1 7 49000107
+1 0 0 0 0 0 1 8 49000108
+1 0 0 0 0 0 1 9 49000109
+
-"Time = 1.000000
--0.450000 49000103.0000000000000
--0.150000 49000102.0000000000000
-0.150000 49000102.0000000000000
-0.450000 49000103.0000000000000
-0.750000 49000104.0000000000000
-1.050000 49000105.0000000000000
-1.350000 49000106.0000000000000
-1.650000 49000107.0000000000000
-1.950000 49000108.0000000000000
-2.250000 49000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/s.xl b/CarpetAttic/Cart3dTest/test/octant/s.xl
index d8bc481a7..4d130828b 100644
--- a/CarpetAttic/Cart3dTest/test/octant/s.xl
+++ b/CarpetAttic/Cart3dTest/test/octant/s.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::s x (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 1000102
+0 0 0 0 0 1 1 2 1010102
+0 0 0 0 0 2 1 2 1020102
+0 0 0 0 0 3 1 2 1030102
+0 0 0 0 0 4 1 2 1040102
+0 0 0 0 0 5 1 2 1050102
+0 0 0 0 0 6 1 2 1060102
+0 0 0 0 0 7 1 2 1070102
+0 0 0 0 0 8 1 2 1080102
+0 0 0 0 0 9 1 2 1090102
-"Time = 0.000000
-0.150000 1000101.0000000000000
-0.450000 1010101.0000000000000
-0.750000 1020101.0000000000000
-1.050000 1030101.0000000000000
-1.350000 1040101.0000000000000
-1.650000 1050101.0000000000000
-1.950000 1060101.0000000000000
-2.250000 1070101.0000000000000
-2.550000 1080101.0000000000000
-2.850000 1090101.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 1000102
+1 0 0 0 0 1 1 2 1010102
+1 0 0 0 0 2 1 2 1020102
+1 0 0 0 0 3 1 2 1030102
+1 0 0 0 0 4 1 2 1040102
+1 0 0 0 0 5 1 2 1050102
+1 0 0 0 0 6 1 2 1060102
+1 0 0 0 0 7 1 2 1070102
+1 0 0 0 0 8 1 2 1080102
+1 0 0 0 0 9 1 2 1090102
+
-"Time = 1.000000
-0.150000 1000102.0000000000000
-0.450000 1010102.0000000000000
-0.750000 1020102.0000000000000
-1.050000 1030102.0000000000000
-1.350000 1040102.0000000000000
-1.650000 1050102.0000000000000
-1.950000 1060102.0000000000000
-2.250000 1070102.0000000000000
-2.550000 1080102.0000000000000
-2.850000 1090102.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/s.yl b/CarpetAttic/Cart3dTest/test/octant/s.yl
index 9a6d153cf..90afa5242 100644
--- a/CarpetAttic/Cart3dTest/test/octant/s.yl
+++ b/CarpetAttic/Cart3dTest/test/octant/s.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::s y (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 1000002
+0 0 0 0 0 0 1 2 1000102
+0 0 0 0 0 0 2 2 1000202
+0 0 0 0 0 0 3 2 1000302
+0 0 0 0 0 0 4 2 1000402
+0 0 0 0 0 0 5 2 1000502
+0 0 0 0 0 0 6 2 1000602
+0 0 0 0 0 0 7 2 1000702
+0 0 0 0 0 0 8 2 1000802
+0 0 0 0 0 0 9 2 1000902
-"Time = 0.000000
--0.150000 1000001.0000000000000
-0.150000 1000101.0000000000000
-0.450000 1000201.0000000000000
-0.750000 1000301.0000000000000
-1.050000 1000401.0000000000000
-1.350000 1000501.0000000000000
-1.650000 1000601.0000000000000
-1.950000 1000701.0000000000000
-2.250000 1000801.0000000000000
-2.550000 1000901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 1000102
+1 0 0 0 0 0 1 2 1000102
+1 0 0 0 0 0 2 2 1000202
+1 0 0 0 0 0 3 2 1000302
+1 0 0 0 0 0 4 2 1000402
+1 0 0 0 0 0 5 2 1000502
+1 0 0 0 0 0 6 2 1000602
+1 0 0 0 0 0 7 2 1000702
+1 0 0 0 0 0 8 2 1000802
+1 0 0 0 0 0 9 2 1000902
+
-"Time = 1.000000
--0.150000 1000102.0000000000000
-0.150000 1000102.0000000000000
-0.450000 1000202.0000000000000
-0.750000 1000302.0000000000000
-1.050000 1000402.0000000000000
-1.350000 1000502.0000000000000
-1.650000 1000602.0000000000000
-1.950000 1000702.0000000000000
-2.250000 1000802.0000000000000
-2.550000 1000902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/s.zl b/CarpetAttic/Cart3dTest/test/octant/s.zl
index 05cf69e09..d77401f61 100644
--- a/CarpetAttic/Cart3dTest/test/octant/s.zl
+++ b/CarpetAttic/Cart3dTest/test/octant/s.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::s z (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 1000100
+0 0 0 0 0 0 1 1 1000101
+0 0 0 0 0 0 1 2 1000102
+0 0 0 0 0 0 1 3 1000103
+0 0 0 0 0 0 1 4 1000104
+0 0 0 0 0 0 1 5 1000105
+0 0 0 0 0 0 1 6 1000106
+0 0 0 0 0 0 1 7 1000107
+0 0 0 0 0 0 1 8 1000108
+0 0 0 0 0 0 1 9 1000109
-"Time = 0.000000
--0.450000 1000100.0000000000000
--0.150000 1000101.0000000000000
-0.150000 1000102.0000000000000
-0.450000 1000103.0000000000000
-0.750000 1000104.0000000000000
-1.050000 1000105.0000000000000
-1.350000 1000106.0000000000000
-1.650000 1000107.0000000000000
-1.950000 1000108.0000000000000
-2.250000 1000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 1000103
+1 0 0 0 0 0 1 1 1000102
+1 0 0 0 0 0 1 2 1000102
+1 0 0 0 0 0 1 3 1000103
+1 0 0 0 0 0 1 4 1000104
+1 0 0 0 0 0 1 5 1000105
+1 0 0 0 0 0 1 6 1000106
+1 0 0 0 0 0 1 7 1000107
+1 0 0 0 0 0 1 8 1000108
+1 0 0 0 0 0 1 9 1000109
+
-"Time = 1.000000
--0.450000 1000103.0000000000000
--0.150000 1000102.0000000000000
-0.150000 1000102.0000000000000
-0.450000 1000103.0000000000000
-0.750000 1000104.0000000000000
-1.050000 1000105.0000000000000
-1.350000 1000106.0000000000000
-1.650000 1000107.0000000000000
-1.950000 1000108.0000000000000
-2.250000 1000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/spher3d_r.xl b/CarpetAttic/Cart3dTest/test/octant/spher3d_r.xl
index a7e55a2d4..dcd9d5780 100644
--- a/CarpetAttic/Cart3dTest/test/octant/spher3d_r.xl
+++ b/CarpetAttic/Cart3dTest/test/octant/spher3d_r.xl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r x (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 0.259807621135332
+0 0 0 0 0 1 1 2 0.49749371855331
+0 0 0 0 0 2 1 2 0.779422863405995
+0 0 0 0 0 3 1 2 1.07121426428143
+0 0 0 0 0 4 1 2 1.36656503687164
+0 0 0 0 0 5 1 2 1.66358047596141
+0 0 0 0 0 6 1 2 1.9615045245933
+0 0 0 0 0 7 1 2 2.2599778759979
+0 0 0 0 0 8 1 2 2.5588083163848
+0 0 0 0 0 9 1 2 2.85788383248865
-"Time = 0.000000
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
-2.550000 2.5588083163848
-2.850000 2.8578838324886
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 0.259807621135332
+1 0 0 0 0 1 1 2 0.49749371855331
+1 0 0 0 0 2 1 2 0.779422863405995
+1 0 0 0 0 3 1 2 1.07121426428143
+1 0 0 0 0 4 1 2 1.36656503687164
+1 0 0 0 0 5 1 2 1.66358047596141
+1 0 0 0 0 6 1 2 1.9615045245933
+1 0 0 0 0 7 1 2 2.2599778759979
+1 0 0 0 0 8 1 2 2.5588083163848
+1 0 0 0 0 9 1 2 2.85788383248865
+
-"Time = 1.000000
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
-2.550000 2.5588083163848
-2.850000 2.8578838324886
diff --git a/CarpetAttic/Cart3dTest/test/octant/spher3d_r.yl b/CarpetAttic/Cart3dTest/test/octant/spher3d_r.yl
index aab231952..f6173a532 100644
--- a/CarpetAttic/Cart3dTest/test/octant/spher3d_r.yl
+++ b/CarpetAttic/Cart3dTest/test/octant/spher3d_r.yl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r y (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 0.259807621135332
+0 0 0 0 0 0 1 2 0.259807621135332
+0 0 0 0 0 0 2 2 0.49749371855331
+0 0 0 0 0 0 3 2 0.779422863405995
+0 0 0 0 0 0 4 2 1.07121426428143
+0 0 0 0 0 0 5 2 1.36656503687164
+0 0 0 0 0 0 6 2 1.66358047596141
+0 0 0 0 0 0 7 2 1.9615045245933
+0 0 0 0 0 0 8 2 2.2599778759979
+0 0 0 0 0 0 9 2 2.5588083163848
-"Time = 0.000000
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
-2.550000 2.5588083163848
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 0.259807621135332
+1 0 0 0 0 0 1 2 0.259807621135332
+1 0 0 0 0 0 2 2 0.49749371855331
+1 0 0 0 0 0 3 2 0.779422863405995
+1 0 0 0 0 0 4 2 1.07121426428143
+1 0 0 0 0 0 5 2 1.36656503687164
+1 0 0 0 0 0 6 2 1.66358047596141
+1 0 0 0 0 0 7 2 1.9615045245933
+1 0 0 0 0 0 8 2 2.2599778759979
+1 0 0 0 0 0 9 2 2.5588083163848
+
-"Time = 1.000000
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
-2.550000 2.5588083163848
diff --git a/CarpetAttic/Cart3dTest/test/octant/spher3d_r.zl b/CarpetAttic/Cart3dTest/test/octant/spher3d_r.zl
index 10f9f0031..444df2582 100644
--- a/CarpetAttic/Cart3dTest/test/octant/spher3d_r.zl
+++ b/CarpetAttic/Cart3dTest/test/octant/spher3d_r.zl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r z (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 0.49749371855331
+0 0 0 0 0 0 1 1 0.259807621135332
+0 0 0 0 0 0 1 2 0.259807621135332
+0 0 0 0 0 0 1 3 0.49749371855331
+0 0 0 0 0 0 1 4 0.779422863405995
+0 0 0 0 0 0 1 5 1.07121426428143
+0 0 0 0 0 0 1 6 1.36656503687164
+0 0 0 0 0 0 1 7 1.66358047596141
+0 0 0 0 0 0 1 8 1.9615045245933
+0 0 0 0 0 0 1 9 2.2599778759979
-"Time = 0.000000
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 0.49749371855331
+1 0 0 0 0 0 1 1 0.259807621135332
+1 0 0 0 0 0 1 2 0.259807621135332
+1 0 0 0 0 0 1 3 0.49749371855331
+1 0 0 0 0 0 1 4 0.779422863405995
+1 0 0 0 0 0 1 5 1.07121426428143
+1 0 0 0 0 0 1 6 1.36656503687164
+1 0 0 0 0 0 1 7 1.66358047596141
+1 0 0 0 0 0 1 8 1.9615045245933
+1 0 0 0 0 0 1 9 2.2599778759979
+
-"Time = 1.000000
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
diff --git a/CarpetAttic/Cart3dTest/test/octant/txx.xl b/CarpetAttic/Cart3dTest/test/octant/txx.xl
index ac1862ef5..758bc5da2 100644
--- a/CarpetAttic/Cart3dTest/test/octant/txx.xl
+++ b/CarpetAttic/Cart3dTest/test/octant/txx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx x (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 21000102
+0 0 0 0 0 1 1 2 21010102
+0 0 0 0 0 2 1 2 21020102
+0 0 0 0 0 3 1 2 21030102
+0 0 0 0 0 4 1 2 21040102
+0 0 0 0 0 5 1 2 21050102
+0 0 0 0 0 6 1 2 21060102
+0 0 0 0 0 7 1 2 21070102
+0 0 0 0 0 8 1 2 21080102
+0 0 0 0 0 9 1 2 21090102
-"Time = 0.000000
-0.150000 21000101.0000000000000
-0.450000 21010101.0000000000000
-0.750000 21020101.0000000000000
-1.050000 21030101.0000000000000
-1.350000 21040101.0000000000000
-1.650000 21050101.0000000000000
-1.950000 21060101.0000000000000
-2.250000 21070101.0000000000000
-2.550000 21080101.0000000000000
-2.850000 21090101.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 21000102
+1 0 0 0 0 1 1 2 21010102
+1 0 0 0 0 2 1 2 21020102
+1 0 0 0 0 3 1 2 21030102
+1 0 0 0 0 4 1 2 21040102
+1 0 0 0 0 5 1 2 21050102
+1 0 0 0 0 6 1 2 21060102
+1 0 0 0 0 7 1 2 21070102
+1 0 0 0 0 8 1 2 21080102
+1 0 0 0 0 9 1 2 21090102
+
-"Time = 1.000000
-0.150000 21000102.0000000000000
-0.450000 21010102.0000000000000
-0.750000 21020102.0000000000000
-1.050000 21030102.0000000000000
-1.350000 21040102.0000000000000
-1.650000 21050102.0000000000000
-1.950000 21060102.0000000000000
-2.250000 21070102.0000000000000
-2.550000 21080102.0000000000000
-2.850000 21090102.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/txx.yl b/CarpetAttic/Cart3dTest/test/octant/txx.yl
index 16f70813d..b0c7a28ba 100644
--- a/CarpetAttic/Cart3dTest/test/octant/txx.yl
+++ b/CarpetAttic/Cart3dTest/test/octant/txx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx y (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 21000002
+0 0 0 0 0 0 1 2 21000102
+0 0 0 0 0 0 2 2 21000202
+0 0 0 0 0 0 3 2 21000302
+0 0 0 0 0 0 4 2 21000402
+0 0 0 0 0 0 5 2 21000502
+0 0 0 0 0 0 6 2 21000602
+0 0 0 0 0 0 7 2 21000702
+0 0 0 0 0 0 8 2 21000802
+0 0 0 0 0 0 9 2 21000902
-"Time = 0.000000
--0.150000 21000001.0000000000000
-0.150000 21000101.0000000000000
-0.450000 21000201.0000000000000
-0.750000 21000301.0000000000000
-1.050000 21000401.0000000000000
-1.350000 21000501.0000000000000
-1.650000 21000601.0000000000000
-1.950000 21000701.0000000000000
-2.250000 21000801.0000000000000
-2.550000 21000901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 21000102
+1 0 0 0 0 0 1 2 21000102
+1 0 0 0 0 0 2 2 21000202
+1 0 0 0 0 0 3 2 21000302
+1 0 0 0 0 0 4 2 21000402
+1 0 0 0 0 0 5 2 21000502
+1 0 0 0 0 0 6 2 21000602
+1 0 0 0 0 0 7 2 21000702
+1 0 0 0 0 0 8 2 21000802
+1 0 0 0 0 0 9 2 21000902
+
-"Time = 1.000000
--0.150000 21000102.0000000000000
-0.150000 21000102.0000000000000
-0.450000 21000202.0000000000000
-0.750000 21000302.0000000000000
-1.050000 21000402.0000000000000
-1.350000 21000502.0000000000000
-1.650000 21000602.0000000000000
-1.950000 21000702.0000000000000
-2.250000 21000802.0000000000000
-2.550000 21000902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/txx.zl b/CarpetAttic/Cart3dTest/test/octant/txx.zl
index ecd9e61a9..63d707040 100644
--- a/CarpetAttic/Cart3dTest/test/octant/txx.zl
+++ b/CarpetAttic/Cart3dTest/test/octant/txx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx z (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 21000100
+0 0 0 0 0 0 1 1 21000101
+0 0 0 0 0 0 1 2 21000102
+0 0 0 0 0 0 1 3 21000103
+0 0 0 0 0 0 1 4 21000104
+0 0 0 0 0 0 1 5 21000105
+0 0 0 0 0 0 1 6 21000106
+0 0 0 0 0 0 1 7 21000107
+0 0 0 0 0 0 1 8 21000108
+0 0 0 0 0 0 1 9 21000109
-"Time = 0.000000
--0.450000 21000100.0000000000000
--0.150000 21000101.0000000000000
-0.150000 21000102.0000000000000
-0.450000 21000103.0000000000000
-0.750000 21000104.0000000000000
-1.050000 21000105.0000000000000
-1.350000 21000106.0000000000000
-1.650000 21000107.0000000000000
-1.950000 21000108.0000000000000
-2.250000 21000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 21000103
+1 0 0 0 0 0 1 1 21000102
+1 0 0 0 0 0 1 2 21000102
+1 0 0 0 0 0 1 3 21000103
+1 0 0 0 0 0 1 4 21000104
+1 0 0 0 0 0 1 5 21000105
+1 0 0 0 0 0 1 6 21000106
+1 0 0 0 0 0 1 7 21000107
+1 0 0 0 0 0 1 8 21000108
+1 0 0 0 0 0 1 9 21000109
+
-"Time = 1.000000
--0.450000 21000103.0000000000000
--0.150000 21000102.0000000000000
-0.150000 21000102.0000000000000
-0.450000 21000103.0000000000000
-0.750000 21000104.0000000000000
-1.050000 21000105.0000000000000
-1.350000 21000106.0000000000000
-1.650000 21000107.0000000000000
-1.950000 21000108.0000000000000
-2.250000 21000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/txy.xl b/CarpetAttic/Cart3dTest/test/octant/txy.xl
index e86664b1b..b2f469349 100644
--- a/CarpetAttic/Cart3dTest/test/octant/txy.xl
+++ b/CarpetAttic/Cart3dTest/test/octant/txy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy x (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 22000102
+0 0 0 0 0 1 1 2 22010102
+0 0 0 0 0 2 1 2 22020102
+0 0 0 0 0 3 1 2 22030102
+0 0 0 0 0 4 1 2 22040102
+0 0 0 0 0 5 1 2 22050102
+0 0 0 0 0 6 1 2 22060102
+0 0 0 0 0 7 1 2 22070102
+0 0 0 0 0 8 1 2 22080102
+0 0 0 0 0 9 1 2 22090102
-"Time = 0.000000
-0.150000 22000101.0000000000000
-0.450000 22010101.0000000000000
-0.750000 22020101.0000000000000
-1.050000 22030101.0000000000000
-1.350000 22040101.0000000000000
-1.650000 22050101.0000000000000
-1.950000 22060101.0000000000000
-2.250000 22070101.0000000000000
-2.550000 22080101.0000000000000
-2.850000 22090101.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 22000102
+1 0 0 0 0 1 1 2 22010102
+1 0 0 0 0 2 1 2 22020102
+1 0 0 0 0 3 1 2 22030102
+1 0 0 0 0 4 1 2 22040102
+1 0 0 0 0 5 1 2 22050102
+1 0 0 0 0 6 1 2 22060102
+1 0 0 0 0 7 1 2 22070102
+1 0 0 0 0 8 1 2 22080102
+1 0 0 0 0 9 1 2 22090102
+
-"Time = 1.000000
-0.150000 22000102.0000000000000
-0.450000 22010102.0000000000000
-0.750000 22020102.0000000000000
-1.050000 22030102.0000000000000
-1.350000 22040102.0000000000000
-1.650000 22050102.0000000000000
-1.950000 22060102.0000000000000
-2.250000 22070102.0000000000000
-2.550000 22080102.0000000000000
-2.850000 22090102.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/txy.yl b/CarpetAttic/Cart3dTest/test/octant/txy.yl
index 4b3656cc1..df9ed81da 100644
--- a/CarpetAttic/Cart3dTest/test/octant/txy.yl
+++ b/CarpetAttic/Cart3dTest/test/octant/txy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy y (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 22000002
+0 0 0 0 0 0 1 2 22000102
+0 0 0 0 0 0 2 2 22000202
+0 0 0 0 0 0 3 2 22000302
+0 0 0 0 0 0 4 2 22000402
+0 0 0 0 0 0 5 2 22000502
+0 0 0 0 0 0 6 2 22000602
+0 0 0 0 0 0 7 2 22000702
+0 0 0 0 0 0 8 2 22000802
+0 0 0 0 0 0 9 2 22000902
-"Time = 0.000000
--0.150000 22000001.0000000000000
-0.150000 22000101.0000000000000
-0.450000 22000201.0000000000000
-0.750000 22000301.0000000000000
-1.050000 22000401.0000000000000
-1.350000 22000501.0000000000000
-1.650000 22000601.0000000000000
-1.950000 22000701.0000000000000
-2.250000 22000801.0000000000000
-2.550000 22000901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 -22000102
+1 0 0 0 0 0 1 2 22000102
+1 0 0 0 0 0 2 2 22000202
+1 0 0 0 0 0 3 2 22000302
+1 0 0 0 0 0 4 2 22000402
+1 0 0 0 0 0 5 2 22000502
+1 0 0 0 0 0 6 2 22000602
+1 0 0 0 0 0 7 2 22000702
+1 0 0 0 0 0 8 2 22000802
+1 0 0 0 0 0 9 2 22000902
+
-"Time = 1.000000
--0.150000 -22000102.0000000000000
-0.150000 22000102.0000000000000
-0.450000 22000202.0000000000000
-0.750000 22000302.0000000000000
-1.050000 22000402.0000000000000
-1.350000 22000502.0000000000000
-1.650000 22000602.0000000000000
-1.950000 22000702.0000000000000
-2.250000 22000802.0000000000000
-2.550000 22000902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/txy.zl b/CarpetAttic/Cart3dTest/test/octant/txy.zl
index d9a4d1555..ee41d856f 100644
--- a/CarpetAttic/Cart3dTest/test/octant/txy.zl
+++ b/CarpetAttic/Cart3dTest/test/octant/txy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy z (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 22000100
+0 0 0 0 0 0 1 1 22000101
+0 0 0 0 0 0 1 2 22000102
+0 0 0 0 0 0 1 3 22000103
+0 0 0 0 0 0 1 4 22000104
+0 0 0 0 0 0 1 5 22000105
+0 0 0 0 0 0 1 6 22000106
+0 0 0 0 0 0 1 7 22000107
+0 0 0 0 0 0 1 8 22000108
+0 0 0 0 0 0 1 9 22000109
-"Time = 0.000000
--0.450000 22000100.0000000000000
--0.150000 22000101.0000000000000
-0.150000 22000102.0000000000000
-0.450000 22000103.0000000000000
-0.750000 22000104.0000000000000
-1.050000 22000105.0000000000000
-1.350000 22000106.0000000000000
-1.650000 22000107.0000000000000
-1.950000 22000108.0000000000000
-2.250000 22000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 22000103
+1 0 0 0 0 0 1 1 22000102
+1 0 0 0 0 0 1 2 22000102
+1 0 0 0 0 0 1 3 22000103
+1 0 0 0 0 0 1 4 22000104
+1 0 0 0 0 0 1 5 22000105
+1 0 0 0 0 0 1 6 22000106
+1 0 0 0 0 0 1 7 22000107
+1 0 0 0 0 0 1 8 22000108
+1 0 0 0 0 0 1 9 22000109
+
-"Time = 1.000000
--0.450000 22000103.0000000000000
--0.150000 22000102.0000000000000
-0.150000 22000102.0000000000000
-0.450000 22000103.0000000000000
-0.750000 22000104.0000000000000
-1.050000 22000105.0000000000000
-1.350000 22000106.0000000000000
-1.650000 22000107.0000000000000
-1.950000 22000108.0000000000000
-2.250000 22000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/txz.xl b/CarpetAttic/Cart3dTest/test/octant/txz.xl
index 3d9f4c22b..da3186e96 100644
--- a/CarpetAttic/Cart3dTest/test/octant/txz.xl
+++ b/CarpetAttic/Cart3dTest/test/octant/txz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz x (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 23000102
+0 0 0 0 0 1 1 2 23010102
+0 0 0 0 0 2 1 2 23020102
+0 0 0 0 0 3 1 2 23030102
+0 0 0 0 0 4 1 2 23040102
+0 0 0 0 0 5 1 2 23050102
+0 0 0 0 0 6 1 2 23060102
+0 0 0 0 0 7 1 2 23070102
+0 0 0 0 0 8 1 2 23080102
+0 0 0 0 0 9 1 2 23090102
-"Time = 0.000000
-0.150000 23000101.0000000000000
-0.450000 23010101.0000000000000
-0.750000 23020101.0000000000000
-1.050000 23030101.0000000000000
-1.350000 23040101.0000000000000
-1.650000 23050101.0000000000000
-1.950000 23060101.0000000000000
-2.250000 23070101.0000000000000
-2.550000 23080101.0000000000000
-2.850000 23090101.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 23000102
+1 0 0 0 0 1 1 2 23010102
+1 0 0 0 0 2 1 2 23020102
+1 0 0 0 0 3 1 2 23030102
+1 0 0 0 0 4 1 2 23040102
+1 0 0 0 0 5 1 2 23050102
+1 0 0 0 0 6 1 2 23060102
+1 0 0 0 0 7 1 2 23070102
+1 0 0 0 0 8 1 2 23080102
+1 0 0 0 0 9 1 2 23090102
+
-"Time = 1.000000
-0.150000 -23000102.0000000000000
-0.450000 -23010102.0000000000000
-0.750000 -23020102.0000000000000
-1.050000 -23030102.0000000000000
-1.350000 -23040102.0000000000000
-1.650000 -23050102.0000000000000
-1.950000 -23060102.0000000000000
-2.250000 -23070102.0000000000000
-2.550000 -23080102.0000000000000
-2.850000 -23090102.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/txz.yl b/CarpetAttic/Cart3dTest/test/octant/txz.yl
index 929b21ba8..f5954d94d 100644
--- a/CarpetAttic/Cart3dTest/test/octant/txz.yl
+++ b/CarpetAttic/Cart3dTest/test/octant/txz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz y (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 23000002
+0 0 0 0 0 0 1 2 23000102
+0 0 0 0 0 0 2 2 23000202
+0 0 0 0 0 0 3 2 23000302
+0 0 0 0 0 0 4 2 23000402
+0 0 0 0 0 0 5 2 23000502
+0 0 0 0 0 0 6 2 23000602
+0 0 0 0 0 0 7 2 23000702
+0 0 0 0 0 0 8 2 23000802
+0 0 0 0 0 0 9 2 23000902
-"Time = 0.000000
--0.150000 23000001.0000000000000
-0.150000 23000101.0000000000000
-0.450000 23000201.0000000000000
-0.750000 23000301.0000000000000
-1.050000 23000401.0000000000000
-1.350000 23000501.0000000000000
-1.650000 23000601.0000000000000
-1.950000 23000701.0000000000000
-2.250000 23000801.0000000000000
-2.550000 23000901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 23000102
+1 0 0 0 0 0 1 2 23000102
+1 0 0 0 0 0 2 2 23000202
+1 0 0 0 0 0 3 2 23000302
+1 0 0 0 0 0 4 2 23000402
+1 0 0 0 0 0 5 2 23000502
+1 0 0 0 0 0 6 2 23000602
+1 0 0 0 0 0 7 2 23000702
+1 0 0 0 0 0 8 2 23000802
+1 0 0 0 0 0 9 2 23000902
+
-"Time = 1.000000
--0.150000 -23000102.0000000000000
-0.150000 -23000102.0000000000000
-0.450000 -23000202.0000000000000
-0.750000 -23000302.0000000000000
-1.050000 -23000402.0000000000000
-1.350000 -23000502.0000000000000
-1.650000 -23000602.0000000000000
-1.950000 -23000702.0000000000000
-2.250000 -23000802.0000000000000
-2.550000 -23000902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/txz.zl b/CarpetAttic/Cart3dTest/test/octant/txz.zl
index 68d168e78..b5a186000 100644
--- a/CarpetAttic/Cart3dTest/test/octant/txz.zl
+++ b/CarpetAttic/Cart3dTest/test/octant/txz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz z (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 23000100
+0 0 0 0 0 0 1 1 23000101
+0 0 0 0 0 0 1 2 23000102
+0 0 0 0 0 0 1 3 23000103
+0 0 0 0 0 0 1 4 23000104
+0 0 0 0 0 0 1 5 23000105
+0 0 0 0 0 0 1 6 23000106
+0 0 0 0 0 0 1 7 23000107
+0 0 0 0 0 0 1 8 23000108
+0 0 0 0 0 0 1 9 23000109
-"Time = 0.000000
--0.450000 23000100.0000000000000
--0.150000 23000101.0000000000000
-0.150000 23000102.0000000000000
-0.450000 23000103.0000000000000
-0.750000 23000104.0000000000000
-1.050000 23000105.0000000000000
-1.350000 23000106.0000000000000
-1.650000 23000107.0000000000000
-1.950000 23000108.0000000000000
-2.250000 23000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 -23000103
+1 0 0 0 0 0 1 1 -23000102
+1 0 0 0 0 0 1 2 23000102
+1 0 0 0 0 0 1 3 23000103
+1 0 0 0 0 0 1 4 23000104
+1 0 0 0 0 0 1 5 23000105
+1 0 0 0 0 0 1 6 23000106
+1 0 0 0 0 0 1 7 23000107
+1 0 0 0 0 0 1 8 23000108
+1 0 0 0 0 0 1 9 23000109
+
-"Time = 1.000000
--0.450000 -23000103.0000000000000
--0.150000 -23000102.0000000000000
-0.150000 23000102.0000000000000
-0.450000 23000103.0000000000000
-0.750000 23000104.0000000000000
-1.050000 23000105.0000000000000
-1.350000 23000106.0000000000000
-1.650000 23000107.0000000000000
-1.950000 23000108.0000000000000
-2.250000 23000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/tyy.xl b/CarpetAttic/Cart3dTest/test/octant/tyy.xl
index 9e5d91a34..ea941f8c5 100644
--- a/CarpetAttic/Cart3dTest/test/octant/tyy.xl
+++ b/CarpetAttic/Cart3dTest/test/octant/tyy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy x (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 24000102
+0 0 0 0 0 1 1 2 24010102
+0 0 0 0 0 2 1 2 24020102
+0 0 0 0 0 3 1 2 24030102
+0 0 0 0 0 4 1 2 24040102
+0 0 0 0 0 5 1 2 24050102
+0 0 0 0 0 6 1 2 24060102
+0 0 0 0 0 7 1 2 24070102
+0 0 0 0 0 8 1 2 24080102
+0 0 0 0 0 9 1 2 24090102
-"Time = 0.000000
-0.150000 24000101.0000000000000
-0.450000 24010101.0000000000000
-0.750000 24020101.0000000000000
-1.050000 24030101.0000000000000
-1.350000 24040101.0000000000000
-1.650000 24050101.0000000000000
-1.950000 24060101.0000000000000
-2.250000 24070101.0000000000000
-2.550000 24080101.0000000000000
-2.850000 24090101.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 24000102
+1 0 0 0 0 1 1 2 24010102
+1 0 0 0 0 2 1 2 24020102
+1 0 0 0 0 3 1 2 24030102
+1 0 0 0 0 4 1 2 24040102
+1 0 0 0 0 5 1 2 24050102
+1 0 0 0 0 6 1 2 24060102
+1 0 0 0 0 7 1 2 24070102
+1 0 0 0 0 8 1 2 24080102
+1 0 0 0 0 9 1 2 24090102
+
-"Time = 1.000000
-0.150000 24000102.0000000000000
-0.450000 24010102.0000000000000
-0.750000 24020102.0000000000000
-1.050000 24030102.0000000000000
-1.350000 24040102.0000000000000
-1.650000 24050102.0000000000000
-1.950000 24060102.0000000000000
-2.250000 24070102.0000000000000
-2.550000 24080102.0000000000000
-2.850000 24090102.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/tyy.yl b/CarpetAttic/Cart3dTest/test/octant/tyy.yl
index 64e11b1d1..99a4256df 100644
--- a/CarpetAttic/Cart3dTest/test/octant/tyy.yl
+++ b/CarpetAttic/Cart3dTest/test/octant/tyy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy y (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 24000002
+0 0 0 0 0 0 1 2 24000102
+0 0 0 0 0 0 2 2 24000202
+0 0 0 0 0 0 3 2 24000302
+0 0 0 0 0 0 4 2 24000402
+0 0 0 0 0 0 5 2 24000502
+0 0 0 0 0 0 6 2 24000602
+0 0 0 0 0 0 7 2 24000702
+0 0 0 0 0 0 8 2 24000802
+0 0 0 0 0 0 9 2 24000902
-"Time = 0.000000
--0.150000 24000001.0000000000000
-0.150000 24000101.0000000000000
-0.450000 24000201.0000000000000
-0.750000 24000301.0000000000000
-1.050000 24000401.0000000000000
-1.350000 24000501.0000000000000
-1.650000 24000601.0000000000000
-1.950000 24000701.0000000000000
-2.250000 24000801.0000000000000
-2.550000 24000901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 24000102
+1 0 0 0 0 0 1 2 24000102
+1 0 0 0 0 0 2 2 24000202
+1 0 0 0 0 0 3 2 24000302
+1 0 0 0 0 0 4 2 24000402
+1 0 0 0 0 0 5 2 24000502
+1 0 0 0 0 0 6 2 24000602
+1 0 0 0 0 0 7 2 24000702
+1 0 0 0 0 0 8 2 24000802
+1 0 0 0 0 0 9 2 24000902
+
-"Time = 1.000000
--0.150000 24000102.0000000000000
-0.150000 24000102.0000000000000
-0.450000 24000202.0000000000000
-0.750000 24000302.0000000000000
-1.050000 24000402.0000000000000
-1.350000 24000502.0000000000000
-1.650000 24000602.0000000000000
-1.950000 24000702.0000000000000
-2.250000 24000802.0000000000000
-2.550000 24000902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/tyy.zl b/CarpetAttic/Cart3dTest/test/octant/tyy.zl
index a7e44d7fa..1ad9be74b 100644
--- a/CarpetAttic/Cart3dTest/test/octant/tyy.zl
+++ b/CarpetAttic/Cart3dTest/test/octant/tyy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy z (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 24000100
+0 0 0 0 0 0 1 1 24000101
+0 0 0 0 0 0 1 2 24000102
+0 0 0 0 0 0 1 3 24000103
+0 0 0 0 0 0 1 4 24000104
+0 0 0 0 0 0 1 5 24000105
+0 0 0 0 0 0 1 6 24000106
+0 0 0 0 0 0 1 7 24000107
+0 0 0 0 0 0 1 8 24000108
+0 0 0 0 0 0 1 9 24000109
-"Time = 0.000000
--0.450000 24000100.0000000000000
--0.150000 24000101.0000000000000
-0.150000 24000102.0000000000000
-0.450000 24000103.0000000000000
-0.750000 24000104.0000000000000
-1.050000 24000105.0000000000000
-1.350000 24000106.0000000000000
-1.650000 24000107.0000000000000
-1.950000 24000108.0000000000000
-2.250000 24000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 24000103
+1 0 0 0 0 0 1 1 24000102
+1 0 0 0 0 0 1 2 24000102
+1 0 0 0 0 0 1 3 24000103
+1 0 0 0 0 0 1 4 24000104
+1 0 0 0 0 0 1 5 24000105
+1 0 0 0 0 0 1 6 24000106
+1 0 0 0 0 0 1 7 24000107
+1 0 0 0 0 0 1 8 24000108
+1 0 0 0 0 0 1 9 24000109
+
-"Time = 1.000000
--0.450000 24000103.0000000000000
--0.150000 24000102.0000000000000
-0.150000 24000102.0000000000000
-0.450000 24000103.0000000000000
-0.750000 24000104.0000000000000
-1.050000 24000105.0000000000000
-1.350000 24000106.0000000000000
-1.650000 24000107.0000000000000
-1.950000 24000108.0000000000000
-2.250000 24000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/tyz.xl b/CarpetAttic/Cart3dTest/test/octant/tyz.xl
index cd00678e4..403a0ee5a 100644
--- a/CarpetAttic/Cart3dTest/test/octant/tyz.xl
+++ b/CarpetAttic/Cart3dTest/test/octant/tyz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz x (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 25000102
+0 0 0 0 0 1 1 2 25010102
+0 0 0 0 0 2 1 2 25020102
+0 0 0 0 0 3 1 2 25030102
+0 0 0 0 0 4 1 2 25040102
+0 0 0 0 0 5 1 2 25050102
+0 0 0 0 0 6 1 2 25060102
+0 0 0 0 0 7 1 2 25070102
+0 0 0 0 0 8 1 2 25080102
+0 0 0 0 0 9 1 2 25090102
-"Time = 0.000000
-0.150000 25000101.0000000000000
-0.450000 25010101.0000000000000
-0.750000 25020101.0000000000000
-1.050000 25030101.0000000000000
-1.350000 25040101.0000000000000
-1.650000 25050101.0000000000000
-1.950000 25060101.0000000000000
-2.250000 25070101.0000000000000
-2.550000 25080101.0000000000000
-2.850000 25090101.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 25000102
+1 0 0 0 0 1 1 2 25010102
+1 0 0 0 0 2 1 2 25020102
+1 0 0 0 0 3 1 2 25030102
+1 0 0 0 0 4 1 2 25040102
+1 0 0 0 0 5 1 2 25050102
+1 0 0 0 0 6 1 2 25060102
+1 0 0 0 0 7 1 2 25070102
+1 0 0 0 0 8 1 2 25080102
+1 0 0 0 0 9 1 2 25090102
+
-"Time = 1.000000
-0.150000 -25000102.0000000000000
-0.450000 -25010102.0000000000000
-0.750000 -25020102.0000000000000
-1.050000 -25030102.0000000000000
-1.350000 -25040102.0000000000000
-1.650000 -25050102.0000000000000
-1.950000 -25060102.0000000000000
-2.250000 -25070102.0000000000000
-2.550000 -25080102.0000000000000
-2.850000 -25090102.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/tyz.yl b/CarpetAttic/Cart3dTest/test/octant/tyz.yl
index c058a93a0..88e5c05a3 100644
--- a/CarpetAttic/Cart3dTest/test/octant/tyz.yl
+++ b/CarpetAttic/Cart3dTest/test/octant/tyz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz y (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 25000002
+0 0 0 0 0 0 1 2 25000102
+0 0 0 0 0 0 2 2 25000202
+0 0 0 0 0 0 3 2 25000302
+0 0 0 0 0 0 4 2 25000402
+0 0 0 0 0 0 5 2 25000502
+0 0 0 0 0 0 6 2 25000602
+0 0 0 0 0 0 7 2 25000702
+0 0 0 0 0 0 8 2 25000802
+0 0 0 0 0 0 9 2 25000902
-"Time = 0.000000
--0.150000 25000001.0000000000000
-0.150000 25000101.0000000000000
-0.450000 25000201.0000000000000
-0.750000 25000301.0000000000000
-1.050000 25000401.0000000000000
-1.350000 25000501.0000000000000
-1.650000 25000601.0000000000000
-1.950000 25000701.0000000000000
-2.250000 25000801.0000000000000
-2.550000 25000901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 -25000102
+1 0 0 0 0 0 1 2 25000102
+1 0 0 0 0 0 2 2 25000202
+1 0 0 0 0 0 3 2 25000302
+1 0 0 0 0 0 4 2 25000402
+1 0 0 0 0 0 5 2 25000502
+1 0 0 0 0 0 6 2 25000602
+1 0 0 0 0 0 7 2 25000702
+1 0 0 0 0 0 8 2 25000802
+1 0 0 0 0 0 9 2 25000902
+
-"Time = 1.000000
--0.150000 25000102.0000000000000
-0.150000 -25000102.0000000000000
-0.450000 -25000202.0000000000000
-0.750000 -25000302.0000000000000
-1.050000 -25000402.0000000000000
-1.350000 -25000502.0000000000000
-1.650000 -25000602.0000000000000
-1.950000 -25000702.0000000000000
-2.250000 -25000802.0000000000000
-2.550000 -25000902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/tyz.zl b/CarpetAttic/Cart3dTest/test/octant/tyz.zl
index b789f5472..10cfca3bf 100644
--- a/CarpetAttic/Cart3dTest/test/octant/tyz.zl
+++ b/CarpetAttic/Cart3dTest/test/octant/tyz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz z (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 25000100
+0 0 0 0 0 0 1 1 25000101
+0 0 0 0 0 0 1 2 25000102
+0 0 0 0 0 0 1 3 25000103
+0 0 0 0 0 0 1 4 25000104
+0 0 0 0 0 0 1 5 25000105
+0 0 0 0 0 0 1 6 25000106
+0 0 0 0 0 0 1 7 25000107
+0 0 0 0 0 0 1 8 25000108
+0 0 0 0 0 0 1 9 25000109
-"Time = 0.000000
--0.450000 25000100.0000000000000
--0.150000 25000101.0000000000000
-0.150000 25000102.0000000000000
-0.450000 25000103.0000000000000
-0.750000 25000104.0000000000000
-1.050000 25000105.0000000000000
-1.350000 25000106.0000000000000
-1.650000 25000107.0000000000000
-1.950000 25000108.0000000000000
-2.250000 25000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 -25000103
+1 0 0 0 0 0 1 1 -25000102
+1 0 0 0 0 0 1 2 25000102
+1 0 0 0 0 0 1 3 25000103
+1 0 0 0 0 0 1 4 25000104
+1 0 0 0 0 0 1 5 25000105
+1 0 0 0 0 0 1 6 25000106
+1 0 0 0 0 0 1 7 25000107
+1 0 0 0 0 0 1 8 25000108
+1 0 0 0 0 0 1 9 25000109
+
-"Time = 1.000000
--0.450000 -25000103.0000000000000
--0.150000 -25000102.0000000000000
-0.150000 25000102.0000000000000
-0.450000 25000103.0000000000000
-0.750000 25000104.0000000000000
-1.050000 25000105.0000000000000
-1.350000 25000106.0000000000000
-1.650000 25000107.0000000000000
-1.950000 25000108.0000000000000
-2.250000 25000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/tzz.xl b/CarpetAttic/Cart3dTest/test/octant/tzz.xl
index 672333496..9c42a9243 100644
--- a/CarpetAttic/Cart3dTest/test/octant/tzz.xl
+++ b/CarpetAttic/Cart3dTest/test/octant/tzz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz x (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 26000102
+0 0 0 0 0 1 1 2 26010102
+0 0 0 0 0 2 1 2 26020102
+0 0 0 0 0 3 1 2 26030102
+0 0 0 0 0 4 1 2 26040102
+0 0 0 0 0 5 1 2 26050102
+0 0 0 0 0 6 1 2 26060102
+0 0 0 0 0 7 1 2 26070102
+0 0 0 0 0 8 1 2 26080102
+0 0 0 0 0 9 1 2 26090102
-"Time = 0.000000
-0.150000 26000101.0000000000000
-0.450000 26010101.0000000000000
-0.750000 26020101.0000000000000
-1.050000 26030101.0000000000000
-1.350000 26040101.0000000000000
-1.650000 26050101.0000000000000
-1.950000 26060101.0000000000000
-2.250000 26070101.0000000000000
-2.550000 26080101.0000000000000
-2.850000 26090101.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 26000102
+1 0 0 0 0 1 1 2 26010102
+1 0 0 0 0 2 1 2 26020102
+1 0 0 0 0 3 1 2 26030102
+1 0 0 0 0 4 1 2 26040102
+1 0 0 0 0 5 1 2 26050102
+1 0 0 0 0 6 1 2 26060102
+1 0 0 0 0 7 1 2 26070102
+1 0 0 0 0 8 1 2 26080102
+1 0 0 0 0 9 1 2 26090102
+
-"Time = 1.000000
-0.150000 26000102.0000000000000
-0.450000 26010102.0000000000000
-0.750000 26020102.0000000000000
-1.050000 26030102.0000000000000
-1.350000 26040102.0000000000000
-1.650000 26050102.0000000000000
-1.950000 26060102.0000000000000
-2.250000 26070102.0000000000000
-2.550000 26080102.0000000000000
-2.850000 26090102.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/tzz.yl b/CarpetAttic/Cart3dTest/test/octant/tzz.yl
index f02f1e145..976fd4842 100644
--- a/CarpetAttic/Cart3dTest/test/octant/tzz.yl
+++ b/CarpetAttic/Cart3dTest/test/octant/tzz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz y (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 26000002
+0 0 0 0 0 0 1 2 26000102
+0 0 0 0 0 0 2 2 26000202
+0 0 0 0 0 0 3 2 26000302
+0 0 0 0 0 0 4 2 26000402
+0 0 0 0 0 0 5 2 26000502
+0 0 0 0 0 0 6 2 26000602
+0 0 0 0 0 0 7 2 26000702
+0 0 0 0 0 0 8 2 26000802
+0 0 0 0 0 0 9 2 26000902
-"Time = 0.000000
--0.150000 26000001.0000000000000
-0.150000 26000101.0000000000000
-0.450000 26000201.0000000000000
-0.750000 26000301.0000000000000
-1.050000 26000401.0000000000000
-1.350000 26000501.0000000000000
-1.650000 26000601.0000000000000
-1.950000 26000701.0000000000000
-2.250000 26000801.0000000000000
-2.550000 26000901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 26000102
+1 0 0 0 0 0 1 2 26000102
+1 0 0 0 0 0 2 2 26000202
+1 0 0 0 0 0 3 2 26000302
+1 0 0 0 0 0 4 2 26000402
+1 0 0 0 0 0 5 2 26000502
+1 0 0 0 0 0 6 2 26000602
+1 0 0 0 0 0 7 2 26000702
+1 0 0 0 0 0 8 2 26000802
+1 0 0 0 0 0 9 2 26000902
+
-"Time = 1.000000
--0.150000 26000102.0000000000000
-0.150000 26000102.0000000000000
-0.450000 26000202.0000000000000
-0.750000 26000302.0000000000000
-1.050000 26000402.0000000000000
-1.350000 26000502.0000000000000
-1.650000 26000602.0000000000000
-1.950000 26000702.0000000000000
-2.250000 26000802.0000000000000
-2.550000 26000902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/tzz.zl b/CarpetAttic/Cart3dTest/test/octant/tzz.zl
index 4e695d5b6..7d79ee5b9 100644
--- a/CarpetAttic/Cart3dTest/test/octant/tzz.zl
+++ b/CarpetAttic/Cart3dTest/test/octant/tzz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz z (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 26000100
+0 0 0 0 0 0 1 1 26000101
+0 0 0 0 0 0 1 2 26000102
+0 0 0 0 0 0 1 3 26000103
+0 0 0 0 0 0 1 4 26000104
+0 0 0 0 0 0 1 5 26000105
+0 0 0 0 0 0 1 6 26000106
+0 0 0 0 0 0 1 7 26000107
+0 0 0 0 0 0 1 8 26000108
+0 0 0 0 0 0 1 9 26000109
-"Time = 0.000000
--0.450000 26000100.0000000000000
--0.150000 26000101.0000000000000
-0.150000 26000102.0000000000000
-0.450000 26000103.0000000000000
-0.750000 26000104.0000000000000
-1.050000 26000105.0000000000000
-1.350000 26000106.0000000000000
-1.650000 26000107.0000000000000
-1.950000 26000108.0000000000000
-2.250000 26000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 26000103
+1 0 0 0 0 0 1 1 26000102
+1 0 0 0 0 0 1 2 26000102
+1 0 0 0 0 0 1 3 26000103
+1 0 0 0 0 0 1 4 26000104
+1 0 0 0 0 0 1 5 26000105
+1 0 0 0 0 0 1 6 26000106
+1 0 0 0 0 0 1 7 26000107
+1 0 0 0 0 0 1 8 26000108
+1 0 0 0 0 0 1 9 26000109
+
-"Time = 1.000000
--0.450000 26000103.0000000000000
--0.150000 26000102.0000000000000
-0.150000 26000102.0000000000000
-0.450000 26000103.0000000000000
-0.750000 26000104.0000000000000
-1.050000 26000105.0000000000000
-1.350000 26000106.0000000000000
-1.650000 26000107.0000000000000
-1.950000 26000108.0000000000000
-2.250000 26000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/vx.xl b/CarpetAttic/Cart3dTest/test/octant/vx.xl
index 7243711a6..71be3b196 100644
--- a/CarpetAttic/Cart3dTest/test/octant/vx.xl
+++ b/CarpetAttic/Cart3dTest/test/octant/vx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx x (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 11000102
+0 0 0 0 0 1 1 2 11010102
+0 0 0 0 0 2 1 2 11020102
+0 0 0 0 0 3 1 2 11030102
+0 0 0 0 0 4 1 2 11040102
+0 0 0 0 0 5 1 2 11050102
+0 0 0 0 0 6 1 2 11060102
+0 0 0 0 0 7 1 2 11070102
+0 0 0 0 0 8 1 2 11080102
+0 0 0 0 0 9 1 2 11090102
-"Time = 0.000000
-0.150000 11000101.0000000000000
-0.450000 11010101.0000000000000
-0.750000 11020101.0000000000000
-1.050000 11030101.0000000000000
-1.350000 11040101.0000000000000
-1.650000 11050101.0000000000000
-1.950000 11060101.0000000000000
-2.250000 11070101.0000000000000
-2.550000 11080101.0000000000000
-2.850000 11090101.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 11000102
+1 0 0 0 0 1 1 2 11010102
+1 0 0 0 0 2 1 2 11020102
+1 0 0 0 0 3 1 2 11030102
+1 0 0 0 0 4 1 2 11040102
+1 0 0 0 0 5 1 2 11050102
+1 0 0 0 0 6 1 2 11060102
+1 0 0 0 0 7 1 2 11070102
+1 0 0 0 0 8 1 2 11080102
+1 0 0 0 0 9 1 2 11090102
+
-"Time = 1.000000
-0.150000 11000102.0000000000000
-0.450000 11010102.0000000000000
-0.750000 11020102.0000000000000
-1.050000 11030102.0000000000000
-1.350000 11040102.0000000000000
-1.650000 11050102.0000000000000
-1.950000 11060102.0000000000000
-2.250000 11070102.0000000000000
-2.550000 11080102.0000000000000
-2.850000 11090102.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/vx.yl b/CarpetAttic/Cart3dTest/test/octant/vx.yl
index 45edcbcaf..b90a1f35c 100644
--- a/CarpetAttic/Cart3dTest/test/octant/vx.yl
+++ b/CarpetAttic/Cart3dTest/test/octant/vx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx y (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 11000002
+0 0 0 0 0 0 1 2 11000102
+0 0 0 0 0 0 2 2 11000202
+0 0 0 0 0 0 3 2 11000302
+0 0 0 0 0 0 4 2 11000402
+0 0 0 0 0 0 5 2 11000502
+0 0 0 0 0 0 6 2 11000602
+0 0 0 0 0 0 7 2 11000702
+0 0 0 0 0 0 8 2 11000802
+0 0 0 0 0 0 9 2 11000902
-"Time = 0.000000
--0.150000 11000001.0000000000000
-0.150000 11000101.0000000000000
-0.450000 11000201.0000000000000
-0.750000 11000301.0000000000000
-1.050000 11000401.0000000000000
-1.350000 11000501.0000000000000
-1.650000 11000601.0000000000000
-1.950000 11000701.0000000000000
-2.250000 11000801.0000000000000
-2.550000 11000901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 11000102
+1 0 0 0 0 0 1 2 11000102
+1 0 0 0 0 0 2 2 11000202
+1 0 0 0 0 0 3 2 11000302
+1 0 0 0 0 0 4 2 11000402
+1 0 0 0 0 0 5 2 11000502
+1 0 0 0 0 0 6 2 11000602
+1 0 0 0 0 0 7 2 11000702
+1 0 0 0 0 0 8 2 11000802
+1 0 0 0 0 0 9 2 11000902
+
-"Time = 1.000000
--0.150000 11000102.0000000000000
-0.150000 11000102.0000000000000
-0.450000 11000202.0000000000000
-0.750000 11000302.0000000000000
-1.050000 11000402.0000000000000
-1.350000 11000502.0000000000000
-1.650000 11000602.0000000000000
-1.950000 11000702.0000000000000
-2.250000 11000802.0000000000000
-2.550000 11000902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/vx.zl b/CarpetAttic/Cart3dTest/test/octant/vx.zl
index ae7b60097..f66fcd330 100644
--- a/CarpetAttic/Cart3dTest/test/octant/vx.zl
+++ b/CarpetAttic/Cart3dTest/test/octant/vx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx z (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 11000100
+0 0 0 0 0 0 1 1 11000101
+0 0 0 0 0 0 1 2 11000102
+0 0 0 0 0 0 1 3 11000103
+0 0 0 0 0 0 1 4 11000104
+0 0 0 0 0 0 1 5 11000105
+0 0 0 0 0 0 1 6 11000106
+0 0 0 0 0 0 1 7 11000107
+0 0 0 0 0 0 1 8 11000108
+0 0 0 0 0 0 1 9 11000109
-"Time = 0.000000
--0.450000 11000100.0000000000000
--0.150000 11000101.0000000000000
-0.150000 11000102.0000000000000
-0.450000 11000103.0000000000000
-0.750000 11000104.0000000000000
-1.050000 11000105.0000000000000
-1.350000 11000106.0000000000000
-1.650000 11000107.0000000000000
-1.950000 11000108.0000000000000
-2.250000 11000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 11000103
+1 0 0 0 0 0 1 1 11000102
+1 0 0 0 0 0 1 2 11000102
+1 0 0 0 0 0 1 3 11000103
+1 0 0 0 0 0 1 4 11000104
+1 0 0 0 0 0 1 5 11000105
+1 0 0 0 0 0 1 6 11000106
+1 0 0 0 0 0 1 7 11000107
+1 0 0 0 0 0 1 8 11000108
+1 0 0 0 0 0 1 9 11000109
+
-"Time = 1.000000
--0.450000 11000103.0000000000000
--0.150000 11000102.0000000000000
-0.150000 11000102.0000000000000
-0.450000 11000103.0000000000000
-0.750000 11000104.0000000000000
-1.050000 11000105.0000000000000
-1.350000 11000106.0000000000000
-1.650000 11000107.0000000000000
-1.950000 11000108.0000000000000
-2.250000 11000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/vy.xl b/CarpetAttic/Cart3dTest/test/octant/vy.xl
index 2f8707932..dcfd7a6da 100644
--- a/CarpetAttic/Cart3dTest/test/octant/vy.xl
+++ b/CarpetAttic/Cart3dTest/test/octant/vy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy x (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 12000102
+0 0 0 0 0 1 1 2 12010102
+0 0 0 0 0 2 1 2 12020102
+0 0 0 0 0 3 1 2 12030102
+0 0 0 0 0 4 1 2 12040102
+0 0 0 0 0 5 1 2 12050102
+0 0 0 0 0 6 1 2 12060102
+0 0 0 0 0 7 1 2 12070102
+0 0 0 0 0 8 1 2 12080102
+0 0 0 0 0 9 1 2 12090102
-"Time = 0.000000
-0.150000 12000101.0000000000000
-0.450000 12010101.0000000000000
-0.750000 12020101.0000000000000
-1.050000 12030101.0000000000000
-1.350000 12040101.0000000000000
-1.650000 12050101.0000000000000
-1.950000 12060101.0000000000000
-2.250000 12070101.0000000000000
-2.550000 12080101.0000000000000
-2.850000 12090101.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 12000102
+1 0 0 0 0 1 1 2 12010102
+1 0 0 0 0 2 1 2 12020102
+1 0 0 0 0 3 1 2 12030102
+1 0 0 0 0 4 1 2 12040102
+1 0 0 0 0 5 1 2 12050102
+1 0 0 0 0 6 1 2 12060102
+1 0 0 0 0 7 1 2 12070102
+1 0 0 0 0 8 1 2 12080102
+1 0 0 0 0 9 1 2 12090102
+
-"Time = 1.000000
-0.150000 12000102.0000000000000
-0.450000 12010102.0000000000000
-0.750000 12020102.0000000000000
-1.050000 12030102.0000000000000
-1.350000 12040102.0000000000000
-1.650000 12050102.0000000000000
-1.950000 12060102.0000000000000
-2.250000 12070102.0000000000000
-2.550000 12080102.0000000000000
-2.850000 12090102.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/vy.yl b/CarpetAttic/Cart3dTest/test/octant/vy.yl
index 5e972875d..bb1ccbd5a 100644
--- a/CarpetAttic/Cart3dTest/test/octant/vy.yl
+++ b/CarpetAttic/Cart3dTest/test/octant/vy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy y (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 12000002
+0 0 0 0 0 0 1 2 12000102
+0 0 0 0 0 0 2 2 12000202
+0 0 0 0 0 0 3 2 12000302
+0 0 0 0 0 0 4 2 12000402
+0 0 0 0 0 0 5 2 12000502
+0 0 0 0 0 0 6 2 12000602
+0 0 0 0 0 0 7 2 12000702
+0 0 0 0 0 0 8 2 12000802
+0 0 0 0 0 0 9 2 12000902
-"Time = 0.000000
--0.150000 12000001.0000000000000
-0.150000 12000101.0000000000000
-0.450000 12000201.0000000000000
-0.750000 12000301.0000000000000
-1.050000 12000401.0000000000000
-1.350000 12000501.0000000000000
-1.650000 12000601.0000000000000
-1.950000 12000701.0000000000000
-2.250000 12000801.0000000000000
-2.550000 12000901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 -12000102
+1 0 0 0 0 0 1 2 12000102
+1 0 0 0 0 0 2 2 12000202
+1 0 0 0 0 0 3 2 12000302
+1 0 0 0 0 0 4 2 12000402
+1 0 0 0 0 0 5 2 12000502
+1 0 0 0 0 0 6 2 12000602
+1 0 0 0 0 0 7 2 12000702
+1 0 0 0 0 0 8 2 12000802
+1 0 0 0 0 0 9 2 12000902
+
-"Time = 1.000000
--0.150000 -12000102.0000000000000
-0.150000 12000102.0000000000000
-0.450000 12000202.0000000000000
-0.750000 12000302.0000000000000
-1.050000 12000402.0000000000000
-1.350000 12000502.0000000000000
-1.650000 12000602.0000000000000
-1.950000 12000702.0000000000000
-2.250000 12000802.0000000000000
-2.550000 12000902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/vy.zl b/CarpetAttic/Cart3dTest/test/octant/vy.zl
index be08f194d..2d110fc34 100644
--- a/CarpetAttic/Cart3dTest/test/octant/vy.zl
+++ b/CarpetAttic/Cart3dTest/test/octant/vy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy z (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 12000100
+0 0 0 0 0 0 1 1 12000101
+0 0 0 0 0 0 1 2 12000102
+0 0 0 0 0 0 1 3 12000103
+0 0 0 0 0 0 1 4 12000104
+0 0 0 0 0 0 1 5 12000105
+0 0 0 0 0 0 1 6 12000106
+0 0 0 0 0 0 1 7 12000107
+0 0 0 0 0 0 1 8 12000108
+0 0 0 0 0 0 1 9 12000109
-"Time = 0.000000
--0.450000 12000100.0000000000000
--0.150000 12000101.0000000000000
-0.150000 12000102.0000000000000
-0.450000 12000103.0000000000000
-0.750000 12000104.0000000000000
-1.050000 12000105.0000000000000
-1.350000 12000106.0000000000000
-1.650000 12000107.0000000000000
-1.950000 12000108.0000000000000
-2.250000 12000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 12000103
+1 0 0 0 0 0 1 1 12000102
+1 0 0 0 0 0 1 2 12000102
+1 0 0 0 0 0 1 3 12000103
+1 0 0 0 0 0 1 4 12000104
+1 0 0 0 0 0 1 5 12000105
+1 0 0 0 0 0 1 6 12000106
+1 0 0 0 0 0 1 7 12000107
+1 0 0 0 0 0 1 8 12000108
+1 0 0 0 0 0 1 9 12000109
+
-"Time = 1.000000
--0.450000 12000103.0000000000000
--0.150000 12000102.0000000000000
-0.150000 12000102.0000000000000
-0.450000 12000103.0000000000000
-0.750000 12000104.0000000000000
-1.050000 12000105.0000000000000
-1.350000 12000106.0000000000000
-1.650000 12000107.0000000000000
-1.950000 12000108.0000000000000
-2.250000 12000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/vz.xl b/CarpetAttic/Cart3dTest/test/octant/vz.xl
index c2cd6c88d..a8969fcb1 100644
--- a/CarpetAttic/Cart3dTest/test/octant/vz.xl
+++ b/CarpetAttic/Cart3dTest/test/octant/vz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz x (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 2 13000102
+0 0 0 0 0 1 1 2 13010102
+0 0 0 0 0 2 1 2 13020102
+0 0 0 0 0 3 1 2 13030102
+0 0 0 0 0 4 1 2 13040102
+0 0 0 0 0 5 1 2 13050102
+0 0 0 0 0 6 1 2 13060102
+0 0 0 0 0 7 1 2 13070102
+0 0 0 0 0 8 1 2 13080102
+0 0 0 0 0 9 1 2 13090102
-"Time = 0.000000
-0.150000 13000101.0000000000000
-0.450000 13010101.0000000000000
-0.750000 13020101.0000000000000
-1.050000 13030101.0000000000000
-1.350000 13040101.0000000000000
-1.650000 13050101.0000000000000
-1.950000 13060101.0000000000000
-2.250000 13070101.0000000000000
-2.550000 13080101.0000000000000
-2.850000 13090101.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 2 13000102
+1 0 0 0 0 1 1 2 13010102
+1 0 0 0 0 2 1 2 13020102
+1 0 0 0 0 3 1 2 13030102
+1 0 0 0 0 4 1 2 13040102
+1 0 0 0 0 5 1 2 13050102
+1 0 0 0 0 6 1 2 13060102
+1 0 0 0 0 7 1 2 13070102
+1 0 0 0 0 8 1 2 13080102
+1 0 0 0 0 9 1 2 13090102
+
-"Time = 1.000000
-0.150000 -13000102.0000000000000
-0.450000 -13010102.0000000000000
-0.750000 -13020102.0000000000000
-1.050000 -13030102.0000000000000
-1.350000 -13040102.0000000000000
-1.650000 -13050102.0000000000000
-1.950000 -13060102.0000000000000
-2.250000 -13070102.0000000000000
-2.550000 -13080102.0000000000000
-2.850000 -13090102.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/vz.yl b/CarpetAttic/Cart3dTest/test/octant/vz.yl
index f727fdbb0..a973b578f 100644
--- a/CarpetAttic/Cart3dTest/test/octant/vz.yl
+++ b/CarpetAttic/Cart3dTest/test/octant/vz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz y (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 2 13000002
+0 0 0 0 0 0 1 2 13000102
+0 0 0 0 0 0 2 2 13000202
+0 0 0 0 0 0 3 2 13000302
+0 0 0 0 0 0 4 2 13000402
+0 0 0 0 0 0 5 2 13000502
+0 0 0 0 0 0 6 2 13000602
+0 0 0 0 0 0 7 2 13000702
+0 0 0 0 0 0 8 2 13000802
+0 0 0 0 0 0 9 2 13000902
-"Time = 0.000000
--0.150000 13000001.0000000000000
-0.150000 13000101.0000000000000
-0.450000 13000201.0000000000000
-0.750000 13000301.0000000000000
-1.050000 13000401.0000000000000
-1.350000 13000501.0000000000000
-1.650000 13000601.0000000000000
-1.950000 13000701.0000000000000
-2.250000 13000801.0000000000000
-2.550000 13000901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 2 13000102
+1 0 0 0 0 0 1 2 13000102
+1 0 0 0 0 0 2 2 13000202
+1 0 0 0 0 0 3 2 13000302
+1 0 0 0 0 0 4 2 13000402
+1 0 0 0 0 0 5 2 13000502
+1 0 0 0 0 0 6 2 13000602
+1 0 0 0 0 0 7 2 13000702
+1 0 0 0 0 0 8 2 13000802
+1 0 0 0 0 0 9 2 13000902
+
-"Time = 1.000000
--0.150000 -13000102.0000000000000
-0.150000 -13000102.0000000000000
-0.450000 -13000202.0000000000000
-0.750000 -13000302.0000000000000
-1.050000 -13000402.0000000000000
-1.350000 -13000502.0000000000000
-1.650000 -13000602.0000000000000
-1.950000 -13000702.0000000000000
-2.250000 -13000802.0000000000000
-2.550000 -13000902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/octant/vz.zl b/CarpetAttic/Cart3dTest/test/octant/vz.zl
index f500bacc3..c3f47d0b8 100644
--- a/CarpetAttic/Cart3dTest/test/octant/vz.zl
+++ b/CarpetAttic/Cart3dTest/test/octant/vz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz z (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 13000100
+0 0 0 0 0 0 1 1 13000101
+0 0 0 0 0 0 1 2 13000102
+0 0 0 0 0 0 1 3 13000103
+0 0 0 0 0 0 1 4 13000104
+0 0 0 0 0 0 1 5 13000105
+0 0 0 0 0 0 1 6 13000106
+0 0 0 0 0 0 1 7 13000107
+0 0 0 0 0 0 1 8 13000108
+0 0 0 0 0 0 1 9 13000109
-"Time = 0.000000
--0.450000 13000100.0000000000000
--0.150000 13000101.0000000000000
-0.150000 13000102.0000000000000
-0.450000 13000103.0000000000000
-0.750000 13000104.0000000000000
-1.050000 13000105.0000000000000
-1.350000 13000106.0000000000000
-1.650000 13000107.0000000000000
-1.950000 13000108.0000000000000
-2.250000 13000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 -13000103
+1 0 0 0 0 0 1 1 -13000102
+1 0 0 0 0 0 1 2 13000102
+1 0 0 0 0 0 1 3 13000103
+1 0 0 0 0 0 1 4 13000104
+1 0 0 0 0 0 1 5 13000105
+1 0 0 0 0 0 1 6 13000106
+1 0 0 0 0 0 1 7 13000107
+1 0 0 0 0 0 1 8 13000108
+1 0 0 0 0 0 1 9 13000109
+
-"Time = 1.000000
--0.450000 -13000103.0000000000000
--0.150000 -13000102.0000000000000
-0.150000 13000102.0000000000000
-0.450000 13000103.0000000000000
-0.750000 13000104.0000000000000
-1.050000 13000105.0000000000000
-1.350000 13000106.0000000000000
-1.650000 13000107.0000000000000
-1.950000 13000108.0000000000000
-2.250000 13000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/ax.xl b/CarpetAttic/Cart3dTest/test/periodic-x/ax.xl
index 64fc2ce29..a6dd976ff 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/ax.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/ax.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax x (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 31000505
+0 0 0 0 0 1 5 5 31010505
+0 0 0 0 0 2 5 5 31020505
+0 0 0 0 0 3 5 5 31030505
+0 0 0 0 0 4 5 5 31040505
+0 0 0 0 0 5 5 5 31050505
+0 0 0 0 0 6 5 5 31060505
+0 0 0 0 0 7 5 5 31070505
+0 0 0 0 0 8 5 5 31080505
+0 0 0 0 0 9 5 5 31090505
-"Time = 0.000000
--1.350000 31000404.0000000000000
--1.050000 31010404.0000000000000
--0.750000 31020404.0000000000000
--0.450000 31030404.0000000000000
--0.150000 31040404.0000000000000
-0.150000 31050404.0000000000000
-0.450000 31060404.0000000000000
-0.750000 31070404.0000000000000
-1.050000 31080404.0000000000000
-1.350000 31090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 31000505
+1 0 0 0 0 1 5 5 31010505
+1 0 0 0 0 2 5 5 31020505
+1 0 0 0 0 3 5 5 31030505
+1 0 0 0 0 4 5 5 31040505
+1 0 0 0 0 5 5 5 31050505
+1 0 0 0 0 6 5 5 31060505
+1 0 0 0 0 7 5 5 31070505
+1 0 0 0 0 8 5 5 31080505
+1 0 0 0 0 9 5 5 31090505
+
-"Time = 1.000000
--1.350000 31000404.0000000000000
--1.050000 31010404.0000000000000
--0.750000 31020404.0000000000000
--0.450000 31030404.0000000000000
--0.150000 31040404.0000000000000
-0.150000 31050404.0000000000000
-0.450000 31060404.0000000000000
-0.750000 31070404.0000000000000
-1.050000 31080404.0000000000000
-1.350000 31090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/ax.yl b/CarpetAttic/Cart3dTest/test/periodic-x/ax.yl
index 62c6b56cd..230d653ff 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/ax.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/ax.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax y (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 31050005
+0 0 0 0 0 5 1 5 31050105
+0 0 0 0 0 5 2 5 31050205
+0 0 0 0 0 5 3 5 31050305
+0 0 0 0 0 5 4 5 31050405
+0 0 0 0 0 5 5 5 31050505
+0 0 0 0 0 5 6 5 31050605
+0 0 0 0 0 5 7 5 31050705
+0 0 0 0 0 5 8 5 31050805
+0 0 0 0 0 5 9 5 31050905
-"Time = 0.000000
--1.350000 31040004.0000000000000
--1.050000 31040104.0000000000000
--0.750000 31040204.0000000000000
--0.450000 31040304.0000000000000
--0.150000 31040404.0000000000000
-0.150000 31040504.0000000000000
-0.450000 31040604.0000000000000
-0.750000 31040704.0000000000000
-1.050000 31040804.0000000000000
-1.350000 31040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 31050005
+1 0 0 0 0 5 1 5 31050105
+1 0 0 0 0 5 2 5 31050205
+1 0 0 0 0 5 3 5 31050305
+1 0 0 0 0 5 4 5 31050405
+1 0 0 0 0 5 5 5 31050505
+1 0 0 0 0 5 6 5 31050605
+1 0 0 0 0 5 7 5 31050705
+1 0 0 0 0 5 8 5 31050805
+1 0 0 0 0 5 9 5 31050905
+
-"Time = 1.000000
--1.350000 31040004.0000000000000
--1.050000 31040104.0000000000000
--0.750000 31040204.0000000000000
--0.450000 31040304.0000000000000
--0.150000 31040404.0000000000000
-0.150000 31040504.0000000000000
-0.450000 31040604.0000000000000
-0.750000 31040704.0000000000000
-1.050000 31040804.0000000000000
-1.350000 31040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/ax.zl b/CarpetAttic/Cart3dTest/test/periodic-x/ax.zl
index 1d8a1b76b..d51caee5e 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/ax.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/ax.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax z (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 31050500
+0 0 0 0 0 5 5 1 31050501
+0 0 0 0 0 5 5 2 31050502
+0 0 0 0 0 5 5 3 31050503
+0 0 0 0 0 5 5 4 31050504
+0 0 0 0 0 5 5 5 31050505
+0 0 0 0 0 5 5 6 31050506
+0 0 0 0 0 5 5 7 31050507
+0 0 0 0 0 5 5 8 31050508
+0 0 0 0 0 5 5 9 31050509
-"Time = 0.000000
--1.350000 31040400.0000000000000
--1.050000 31040401.0000000000000
--0.750000 31040402.0000000000000
--0.450000 31040403.0000000000000
--0.150000 31040404.0000000000000
-0.150000 31040405.0000000000000
-0.450000 31040406.0000000000000
-0.750000 31040407.0000000000000
-1.050000 31040408.0000000000000
-1.350000 31040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 31050500
+1 0 0 0 0 5 5 1 31050501
+1 0 0 0 0 5 5 2 31050502
+1 0 0 0 0 5 5 3 31050503
+1 0 0 0 0 5 5 4 31050504
+1 0 0 0 0 5 5 5 31050505
+1 0 0 0 0 5 5 6 31050506
+1 0 0 0 0 5 5 7 31050507
+1 0 0 0 0 5 5 8 31050508
+1 0 0 0 0 5 5 9 31050509
+
-"Time = 1.000000
--1.350000 31040400.0000000000000
--1.050000 31040401.0000000000000
--0.750000 31040402.0000000000000
--0.450000 31040403.0000000000000
--0.150000 31040404.0000000000000
-0.150000 31040405.0000000000000
-0.450000 31040406.0000000000000
-0.750000 31040407.0000000000000
-1.050000 31040408.0000000000000
-1.350000 31040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/ay.xl b/CarpetAttic/Cart3dTest/test/periodic-x/ay.xl
index f7fa2388b..d98eb4ea0 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/ay.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/ay.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay x (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 32000505
+0 0 0 0 0 1 5 5 32010505
+0 0 0 0 0 2 5 5 32020505
+0 0 0 0 0 3 5 5 32030505
+0 0 0 0 0 4 5 5 32040505
+0 0 0 0 0 5 5 5 32050505
+0 0 0 0 0 6 5 5 32060505
+0 0 0 0 0 7 5 5 32070505
+0 0 0 0 0 8 5 5 32080505
+0 0 0 0 0 9 5 5 32090505
-"Time = 0.000000
--1.350000 32000404.0000000000000
--1.050000 32010404.0000000000000
--0.750000 32020404.0000000000000
--0.450000 32030404.0000000000000
--0.150000 32040404.0000000000000
-0.150000 32050404.0000000000000
-0.450000 32060404.0000000000000
-0.750000 32070404.0000000000000
-1.050000 32080404.0000000000000
-1.350000 32090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 32000505
+1 0 0 0 0 1 5 5 32010505
+1 0 0 0 0 2 5 5 32020505
+1 0 0 0 0 3 5 5 32030505
+1 0 0 0 0 4 5 5 32040505
+1 0 0 0 0 5 5 5 32050505
+1 0 0 0 0 6 5 5 32060505
+1 0 0 0 0 7 5 5 32070505
+1 0 0 0 0 8 5 5 32080505
+1 0 0 0 0 9 5 5 32090505
+
-"Time = 1.000000
--1.350000 32000404.0000000000000
--1.050000 32010404.0000000000000
--0.750000 32020404.0000000000000
--0.450000 32030404.0000000000000
--0.150000 32040404.0000000000000
-0.150000 32050404.0000000000000
-0.450000 32060404.0000000000000
-0.750000 32070404.0000000000000
-1.050000 32080404.0000000000000
-1.350000 32090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/ay.yl b/CarpetAttic/Cart3dTest/test/periodic-x/ay.yl
index fac95ed2f..544d74dd3 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/ay.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/ay.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay y (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 32050005
+0 0 0 0 0 5 1 5 32050105
+0 0 0 0 0 5 2 5 32050205
+0 0 0 0 0 5 3 5 32050305
+0 0 0 0 0 5 4 5 32050405
+0 0 0 0 0 5 5 5 32050505
+0 0 0 0 0 5 6 5 32050605
+0 0 0 0 0 5 7 5 32050705
+0 0 0 0 0 5 8 5 32050805
+0 0 0 0 0 5 9 5 32050905
-"Time = 0.000000
--1.350000 32040004.0000000000000
--1.050000 32040104.0000000000000
--0.750000 32040204.0000000000000
--0.450000 32040304.0000000000000
--0.150000 32040404.0000000000000
-0.150000 32040504.0000000000000
-0.450000 32040604.0000000000000
-0.750000 32040704.0000000000000
-1.050000 32040804.0000000000000
-1.350000 32040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 32050005
+1 0 0 0 0 5 1 5 32050105
+1 0 0 0 0 5 2 5 32050205
+1 0 0 0 0 5 3 5 32050305
+1 0 0 0 0 5 4 5 32050405
+1 0 0 0 0 5 5 5 32050505
+1 0 0 0 0 5 6 5 32050605
+1 0 0 0 0 5 7 5 32050705
+1 0 0 0 0 5 8 5 32050805
+1 0 0 0 0 5 9 5 32050905
+
-"Time = 1.000000
--1.350000 32040004.0000000000000
--1.050000 32040104.0000000000000
--0.750000 32040204.0000000000000
--0.450000 32040304.0000000000000
--0.150000 32040404.0000000000000
-0.150000 32040504.0000000000000
-0.450000 32040604.0000000000000
-0.750000 32040704.0000000000000
-1.050000 32040804.0000000000000
-1.350000 32040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/ay.zl b/CarpetAttic/Cart3dTest/test/periodic-x/ay.zl
index 26668e7d6..5625bfb61 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/ay.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/ay.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay z (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 32050500
+0 0 0 0 0 5 5 1 32050501
+0 0 0 0 0 5 5 2 32050502
+0 0 0 0 0 5 5 3 32050503
+0 0 0 0 0 5 5 4 32050504
+0 0 0 0 0 5 5 5 32050505
+0 0 0 0 0 5 5 6 32050506
+0 0 0 0 0 5 5 7 32050507
+0 0 0 0 0 5 5 8 32050508
+0 0 0 0 0 5 5 9 32050509
-"Time = 0.000000
--1.350000 32040400.0000000000000
--1.050000 32040401.0000000000000
--0.750000 32040402.0000000000000
--0.450000 32040403.0000000000000
--0.150000 32040404.0000000000000
-0.150000 32040405.0000000000000
-0.450000 32040406.0000000000000
-0.750000 32040407.0000000000000
-1.050000 32040408.0000000000000
-1.350000 32040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 32050500
+1 0 0 0 0 5 5 1 32050501
+1 0 0 0 0 5 5 2 32050502
+1 0 0 0 0 5 5 3 32050503
+1 0 0 0 0 5 5 4 32050504
+1 0 0 0 0 5 5 5 32050505
+1 0 0 0 0 5 5 6 32050506
+1 0 0 0 0 5 5 7 32050507
+1 0 0 0 0 5 5 8 32050508
+1 0 0 0 0 5 5 9 32050509
+
-"Time = 1.000000
--1.350000 32040400.0000000000000
--1.050000 32040401.0000000000000
--0.750000 32040402.0000000000000
--0.450000 32040403.0000000000000
--0.150000 32040404.0000000000000
-0.150000 32040405.0000000000000
-0.450000 32040406.0000000000000
-0.750000 32040407.0000000000000
-1.050000 32040408.0000000000000
-1.350000 32040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/az.xl b/CarpetAttic/Cart3dTest/test/periodic-x/az.xl
index 0a4b1c7a6..9c2733464 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/az.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/az.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::az x (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 33000505
+0 0 0 0 0 1 5 5 33010505
+0 0 0 0 0 2 5 5 33020505
+0 0 0 0 0 3 5 5 33030505
+0 0 0 0 0 4 5 5 33040505
+0 0 0 0 0 5 5 5 33050505
+0 0 0 0 0 6 5 5 33060505
+0 0 0 0 0 7 5 5 33070505
+0 0 0 0 0 8 5 5 33080505
+0 0 0 0 0 9 5 5 33090505
-"Time = 0.000000
--1.350000 33000404.0000000000000
--1.050000 33010404.0000000000000
--0.750000 33020404.0000000000000
--0.450000 33030404.0000000000000
--0.150000 33040404.0000000000000
-0.150000 33050404.0000000000000
-0.450000 33060404.0000000000000
-0.750000 33070404.0000000000000
-1.050000 33080404.0000000000000
-1.350000 33090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 33000505
+1 0 0 0 0 1 5 5 33010505
+1 0 0 0 0 2 5 5 33020505
+1 0 0 0 0 3 5 5 33030505
+1 0 0 0 0 4 5 5 33040505
+1 0 0 0 0 5 5 5 33050505
+1 0 0 0 0 6 5 5 33060505
+1 0 0 0 0 7 5 5 33070505
+1 0 0 0 0 8 5 5 33080505
+1 0 0 0 0 9 5 5 33090505
+
-"Time = 1.000000
--1.350000 33000404.0000000000000
--1.050000 33010404.0000000000000
--0.750000 33020404.0000000000000
--0.450000 33030404.0000000000000
--0.150000 33040404.0000000000000
-0.150000 33050404.0000000000000
-0.450000 33060404.0000000000000
-0.750000 33070404.0000000000000
-1.050000 33080404.0000000000000
-1.350000 33090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/az.yl b/CarpetAttic/Cart3dTest/test/periodic-x/az.yl
index beb086aee..d6681d1c1 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/az.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/az.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::az y (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 33050005
+0 0 0 0 0 5 1 5 33050105
+0 0 0 0 0 5 2 5 33050205
+0 0 0 0 0 5 3 5 33050305
+0 0 0 0 0 5 4 5 33050405
+0 0 0 0 0 5 5 5 33050505
+0 0 0 0 0 5 6 5 33050605
+0 0 0 0 0 5 7 5 33050705
+0 0 0 0 0 5 8 5 33050805
+0 0 0 0 0 5 9 5 33050905
-"Time = 0.000000
--1.350000 33040004.0000000000000
--1.050000 33040104.0000000000000
--0.750000 33040204.0000000000000
--0.450000 33040304.0000000000000
--0.150000 33040404.0000000000000
-0.150000 33040504.0000000000000
-0.450000 33040604.0000000000000
-0.750000 33040704.0000000000000
-1.050000 33040804.0000000000000
-1.350000 33040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 33050005
+1 0 0 0 0 5 1 5 33050105
+1 0 0 0 0 5 2 5 33050205
+1 0 0 0 0 5 3 5 33050305
+1 0 0 0 0 5 4 5 33050405
+1 0 0 0 0 5 5 5 33050505
+1 0 0 0 0 5 6 5 33050605
+1 0 0 0 0 5 7 5 33050705
+1 0 0 0 0 5 8 5 33050805
+1 0 0 0 0 5 9 5 33050905
+
-"Time = 1.000000
--1.350000 33040004.0000000000000
--1.050000 33040104.0000000000000
--0.750000 33040204.0000000000000
--0.450000 33040304.0000000000000
--0.150000 33040404.0000000000000
-0.150000 33040504.0000000000000
-0.450000 33040604.0000000000000
-0.750000 33040704.0000000000000
-1.050000 33040804.0000000000000
-1.350000 33040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/az.zl b/CarpetAttic/Cart3dTest/test/periodic-x/az.zl
index b43da40e6..5c265cf14 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/az.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/az.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::az z (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 33050500
+0 0 0 0 0 5 5 1 33050501
+0 0 0 0 0 5 5 2 33050502
+0 0 0 0 0 5 5 3 33050503
+0 0 0 0 0 5 5 4 33050504
+0 0 0 0 0 5 5 5 33050505
+0 0 0 0 0 5 5 6 33050506
+0 0 0 0 0 5 5 7 33050507
+0 0 0 0 0 5 5 8 33050508
+0 0 0 0 0 5 5 9 33050509
-"Time = 0.000000
--1.350000 33040400.0000000000000
--1.050000 33040401.0000000000000
--0.750000 33040402.0000000000000
--0.450000 33040403.0000000000000
--0.150000 33040404.0000000000000
-0.150000 33040405.0000000000000
-0.450000 33040406.0000000000000
-0.750000 33040407.0000000000000
-1.050000 33040408.0000000000000
-1.350000 33040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 33050500
+1 0 0 0 0 5 5 1 33050501
+1 0 0 0 0 5 5 2 33050502
+1 0 0 0 0 5 5 3 33050503
+1 0 0 0 0 5 5 4 33050504
+1 0 0 0 0 5 5 5 33050505
+1 0 0 0 0 5 5 6 33050506
+1 0 0 0 0 5 5 7 33050507
+1 0 0 0 0 5 5 8 33050508
+1 0 0 0 0 5 5 9 33050509
+
-"Time = 1.000000
--1.350000 33040400.0000000000000
--1.050000 33040401.0000000000000
--0.750000 33040402.0000000000000
--0.450000 33040403.0000000000000
--0.150000 33040404.0000000000000
-0.150000 33040405.0000000000000
-0.450000 33040406.0000000000000
-0.750000 33040407.0000000000000
-1.050000 33040408.0000000000000
-1.350000 33040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_x.xl b/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_x.xl
index 33b36d0af..22e840206 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_x.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_x.xl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x x (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 -1.35
+0 0 0 0 0 1 5 5 -1.05
+0 0 0 0 0 2 5 5 -0.75
+0 0 0 0 0 3 5 5 -0.45
+0 0 0 0 0 4 5 5 -0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 6 5 5 0.45
+0 0 0 0 0 7 5 5 0.75
+0 0 0 0 0 8 5 5 1.05
+0 0 0 0 0 9 5 5 1.35
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 -1.35
+1 0 0 0 0 1 5 5 -1.05
+1 0 0 0 0 2 5 5 -0.75
+1 0 0 0 0 3 5 5 -0.45
+1 0 0 0 0 4 5 5 -0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 6 5 5 0.45
+1 0 0 0 0 7 5 5 0.75
+1 0 0 0 0 8 5 5 1.05
+1 0 0 0 0 9 5 5 1.35
+
-"Time = 1.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_x.yl b/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_x.yl
index 52b13d0ae..592815c82 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_x.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_x.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x y (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 0.15
+0 0 0 0 0 5 1 5 0.15
+0 0 0 0 0 5 2 5 0.15
+0 0 0 0 0 5 3 5 0.15
+0 0 0 0 0 5 4 5 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 6 5 0.15
+0 0 0 0 0 5 7 5 0.15
+0 0 0 0 0 5 8 5 0.15
+0 0 0 0 0 5 9 5 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 0.15
+1 0 0 0 0 5 1 5 0.15
+1 0 0 0 0 5 2 5 0.15
+1 0 0 0 0 5 3 5 0.15
+1 0 0 0 0 5 4 5 0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 5 6 5 0.15
+1 0 0 0 0 5 7 5 0.15
+1 0 0 0 0 5 8 5 0.15
+1 0 0 0 0 5 9 5 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_x.zl b/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_x.zl
index 52b13d0ae..1f894853b 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_x.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_x.zl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x z (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 0.15
+0 0 0 0 0 5 5 1 0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 5 5 3 0.15
+0 0 0 0 0 5 5 4 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 5 6 0.15
+0 0 0 0 0 5 5 7 0.15
+0 0 0 0 0 5 5 8 0.15
+0 0 0 0 0 5 5 9 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 0.15
+1 0 0 0 0 5 5 1 0.15
+1 0 0 0 0 5 5 2 0.15
+1 0 0 0 0 5 5 3 0.15
+1 0 0 0 0 5 5 4 0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 5 5 6 0.15
+1 0 0 0 0 5 5 7 0.15
+1 0 0 0 0 5 5 8 0.15
+1 0 0 0 0 5 5 9 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_y.xl b/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_y.xl
index 52b13d0ae..8ee8190c4 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_y.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_y.xl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y x (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 0.15
+0 0 0 0 0 1 5 5 0.15
+0 0 0 0 0 2 5 5 0.15
+0 0 0 0 0 3 5 5 0.15
+0 0 0 0 0 4 5 5 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 6 5 5 0.15
+0 0 0 0 0 7 5 5 0.15
+0 0 0 0 0 8 5 5 0.15
+0 0 0 0 0 9 5 5 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 0.15
+1 0 0 0 0 1 5 5 0.15
+1 0 0 0 0 2 5 5 0.15
+1 0 0 0 0 3 5 5 0.15
+1 0 0 0 0 4 5 5 0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 6 5 5 0.15
+1 0 0 0 0 7 5 5 0.15
+1 0 0 0 0 8 5 5 0.15
+1 0 0 0 0 9 5 5 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_y.yl b/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_y.yl
index 33b36d0af..aec69999e 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_y.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_y.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y y (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 -1.35
+0 0 0 0 0 5 1 5 -1.05
+0 0 0 0 0 5 2 5 -0.75
+0 0 0 0 0 5 3 5 -0.45
+0 0 0 0 0 5 4 5 -0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 6 5 0.45
+0 0 0 0 0 5 7 5 0.75
+0 0 0 0 0 5 8 5 1.05
+0 0 0 0 0 5 9 5 1.35
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 -1.35
+1 0 0 0 0 5 1 5 -1.05
+1 0 0 0 0 5 2 5 -0.75
+1 0 0 0 0 5 3 5 -0.45
+1 0 0 0 0 5 4 5 -0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 5 6 5 0.45
+1 0 0 0 0 5 7 5 0.75
+1 0 0 0 0 5 8 5 1.05
+1 0 0 0 0 5 9 5 1.35
+
-"Time = 1.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_y.zl b/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_y.zl
index 52b13d0ae..f32f3acb9 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_y.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_y.zl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y z (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 0.15
+0 0 0 0 0 5 5 1 0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 5 5 3 0.15
+0 0 0 0 0 5 5 4 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 5 6 0.15
+0 0 0 0 0 5 5 7 0.15
+0 0 0 0 0 5 5 8 0.15
+0 0 0 0 0 5 5 9 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 0.15
+1 0 0 0 0 5 5 1 0.15
+1 0 0 0 0 5 5 2 0.15
+1 0 0 0 0 5 5 3 0.15
+1 0 0 0 0 5 5 4 0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 5 5 6 0.15
+1 0 0 0 0 5 5 7 0.15
+1 0 0 0 0 5 5 8 0.15
+1 0 0 0 0 5 5 9 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_z.xl b/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_z.xl
index 52b13d0ae..400b19f39 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_z.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_z.xl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z x (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 0.15
+0 0 0 0 0 1 5 5 0.15
+0 0 0 0 0 2 5 5 0.15
+0 0 0 0 0 3 5 5 0.15
+0 0 0 0 0 4 5 5 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 6 5 5 0.15
+0 0 0 0 0 7 5 5 0.15
+0 0 0 0 0 8 5 5 0.15
+0 0 0 0 0 9 5 5 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 0.15
+1 0 0 0 0 1 5 5 0.15
+1 0 0 0 0 2 5 5 0.15
+1 0 0 0 0 3 5 5 0.15
+1 0 0 0 0 4 5 5 0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 6 5 5 0.15
+1 0 0 0 0 7 5 5 0.15
+1 0 0 0 0 8 5 5 0.15
+1 0 0 0 0 9 5 5 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_z.yl b/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_z.yl
index 52b13d0ae..0373176c5 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_z.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_z.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z y (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 0.15
+0 0 0 0 0 5 1 5 0.15
+0 0 0 0 0 5 2 5 0.15
+0 0 0 0 0 5 3 5 0.15
+0 0 0 0 0 5 4 5 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 6 5 0.15
+0 0 0 0 0 5 7 5 0.15
+0 0 0 0 0 5 8 5 0.15
+0 0 0 0 0 5 9 5 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 0.15
+1 0 0 0 0 5 1 5 0.15
+1 0 0 0 0 5 2 5 0.15
+1 0 0 0 0 5 3 5 0.15
+1 0 0 0 0 5 4 5 0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 5 6 5 0.15
+1 0 0 0 0 5 7 5 0.15
+1 0 0 0 0 5 8 5 0.15
+1 0 0 0 0 5 9 5 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_z.zl b/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_z.zl
index 33b36d0af..6fd48c20b 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_z.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/cart3d_z.zl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z z (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 -1.35
+0 0 0 0 0 5 5 1 -1.05
+0 0 0 0 0 5 5 2 -0.75
+0 0 0 0 0 5 5 3 -0.45
+0 0 0 0 0 5 5 4 -0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 5 6 0.45
+0 0 0 0 0 5 5 7 0.75
+0 0 0 0 0 5 5 8 1.05
+0 0 0 0 0 5 5 9 1.35
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 -1.35
+1 0 0 0 0 5 5 1 -1.05
+1 0 0 0 0 5 5 2 -0.75
+1 0 0 0 0 5 5 3 -0.45
+1 0 0 0 0 5 5 4 -0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 5 5 6 0.45
+1 0 0 0 0 5 5 7 0.75
+1 0 0 0 0 5 5 8 1.05
+1 0 0 0 0 5 5 9 1.35
+
-"Time = 1.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/fxx.xl b/CarpetAttic/Cart3dTest/test/periodic-x/fxx.xl
index 7e21c6074..f4e4dc8fd 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/fxx.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/fxx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx x (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 41000505
+0 0 0 0 0 1 5 5 41010505
+0 0 0 0 0 2 5 5 41020505
+0 0 0 0 0 3 5 5 41030505
+0 0 0 0 0 4 5 5 41040505
+0 0 0 0 0 5 5 5 41050505
+0 0 0 0 0 6 5 5 41060505
+0 0 0 0 0 7 5 5 41070505
+0 0 0 0 0 8 5 5 41080505
+0 0 0 0 0 9 5 5 41090505
-"Time = 0.000000
--1.350000 41000404.0000000000000
--1.050000 41010404.0000000000000
--0.750000 41020404.0000000000000
--0.450000 41030404.0000000000000
--0.150000 41040404.0000000000000
-0.150000 41050404.0000000000000
-0.450000 41060404.0000000000000
-0.750000 41070404.0000000000000
-1.050000 41080404.0000000000000
-1.350000 41090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 41000505
+1 0 0 0 0 1 5 5 41010505
+1 0 0 0 0 2 5 5 41020505
+1 0 0 0 0 3 5 5 41030505
+1 0 0 0 0 4 5 5 41040505
+1 0 0 0 0 5 5 5 41050505
+1 0 0 0 0 6 5 5 41060505
+1 0 0 0 0 7 5 5 41070505
+1 0 0 0 0 8 5 5 41080505
+1 0 0 0 0 9 5 5 41090505
+
-"Time = 1.000000
--1.350000 41000404.0000000000000
--1.050000 41010404.0000000000000
--0.750000 41020404.0000000000000
--0.450000 41030404.0000000000000
--0.150000 41040404.0000000000000
-0.150000 41050404.0000000000000
-0.450000 41060404.0000000000000
-0.750000 41070404.0000000000000
-1.050000 41080404.0000000000000
-1.350000 41090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/fxx.yl b/CarpetAttic/Cart3dTest/test/periodic-x/fxx.yl
index 17ff6b36c..153dc4e30 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/fxx.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/fxx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx y (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 41050005
+0 0 0 0 0 5 1 5 41050105
+0 0 0 0 0 5 2 5 41050205
+0 0 0 0 0 5 3 5 41050305
+0 0 0 0 0 5 4 5 41050405
+0 0 0 0 0 5 5 5 41050505
+0 0 0 0 0 5 6 5 41050605
+0 0 0 0 0 5 7 5 41050705
+0 0 0 0 0 5 8 5 41050805
+0 0 0 0 0 5 9 5 41050905
-"Time = 0.000000
--1.350000 41040004.0000000000000
--1.050000 41040104.0000000000000
--0.750000 41040204.0000000000000
--0.450000 41040304.0000000000000
--0.150000 41040404.0000000000000
-0.150000 41040504.0000000000000
-0.450000 41040604.0000000000000
-0.750000 41040704.0000000000000
-1.050000 41040804.0000000000000
-1.350000 41040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 41050005
+1 0 0 0 0 5 1 5 41050105
+1 0 0 0 0 5 2 5 41050205
+1 0 0 0 0 5 3 5 41050305
+1 0 0 0 0 5 4 5 41050405
+1 0 0 0 0 5 5 5 41050505
+1 0 0 0 0 5 6 5 41050605
+1 0 0 0 0 5 7 5 41050705
+1 0 0 0 0 5 8 5 41050805
+1 0 0 0 0 5 9 5 41050905
+
-"Time = 1.000000
--1.350000 41040004.0000000000000
--1.050000 41040104.0000000000000
--0.750000 41040204.0000000000000
--0.450000 41040304.0000000000000
--0.150000 41040404.0000000000000
-0.150000 41040504.0000000000000
-0.450000 41040604.0000000000000
-0.750000 41040704.0000000000000
-1.050000 41040804.0000000000000
-1.350000 41040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/fxx.zl b/CarpetAttic/Cart3dTest/test/periodic-x/fxx.zl
index 4f5d23b3f..d096693b5 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/fxx.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/fxx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx z (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 41050500
+0 0 0 0 0 5 5 1 41050501
+0 0 0 0 0 5 5 2 41050502
+0 0 0 0 0 5 5 3 41050503
+0 0 0 0 0 5 5 4 41050504
+0 0 0 0 0 5 5 5 41050505
+0 0 0 0 0 5 5 6 41050506
+0 0 0 0 0 5 5 7 41050507
+0 0 0 0 0 5 5 8 41050508
+0 0 0 0 0 5 5 9 41050509
-"Time = 0.000000
--1.350000 41040400.0000000000000
--1.050000 41040401.0000000000000
--0.750000 41040402.0000000000000
--0.450000 41040403.0000000000000
--0.150000 41040404.0000000000000
-0.150000 41040405.0000000000000
-0.450000 41040406.0000000000000
-0.750000 41040407.0000000000000
-1.050000 41040408.0000000000000
-1.350000 41040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 41050500
+1 0 0 0 0 5 5 1 41050501
+1 0 0 0 0 5 5 2 41050502
+1 0 0 0 0 5 5 3 41050503
+1 0 0 0 0 5 5 4 41050504
+1 0 0 0 0 5 5 5 41050505
+1 0 0 0 0 5 5 6 41050506
+1 0 0 0 0 5 5 7 41050507
+1 0 0 0 0 5 5 8 41050508
+1 0 0 0 0 5 5 9 41050509
+
-"Time = 1.000000
--1.350000 41040400.0000000000000
--1.050000 41040401.0000000000000
--0.750000 41040402.0000000000000
--0.450000 41040403.0000000000000
--0.150000 41040404.0000000000000
-0.150000 41040405.0000000000000
-0.450000 41040406.0000000000000
-0.750000 41040407.0000000000000
-1.050000 41040408.0000000000000
-1.350000 41040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/fxy.xl b/CarpetAttic/Cart3dTest/test/periodic-x/fxy.xl
index 8fd09cad7..bec381f14 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/fxy.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/fxy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy x (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 42000505
+0 0 0 0 0 1 5 5 42010505
+0 0 0 0 0 2 5 5 42020505
+0 0 0 0 0 3 5 5 42030505
+0 0 0 0 0 4 5 5 42040505
+0 0 0 0 0 5 5 5 42050505
+0 0 0 0 0 6 5 5 42060505
+0 0 0 0 0 7 5 5 42070505
+0 0 0 0 0 8 5 5 42080505
+0 0 0 0 0 9 5 5 42090505
-"Time = 0.000000
--1.350000 42000404.0000000000000
--1.050000 42010404.0000000000000
--0.750000 42020404.0000000000000
--0.450000 42030404.0000000000000
--0.150000 42040404.0000000000000
-0.150000 42050404.0000000000000
-0.450000 42060404.0000000000000
-0.750000 42070404.0000000000000
-1.050000 42080404.0000000000000
-1.350000 42090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 42000505
+1 0 0 0 0 1 5 5 42010505
+1 0 0 0 0 2 5 5 42020505
+1 0 0 0 0 3 5 5 42030505
+1 0 0 0 0 4 5 5 42040505
+1 0 0 0 0 5 5 5 42050505
+1 0 0 0 0 6 5 5 42060505
+1 0 0 0 0 7 5 5 42070505
+1 0 0 0 0 8 5 5 42080505
+1 0 0 0 0 9 5 5 42090505
+
-"Time = 1.000000
--1.350000 42000404.0000000000000
--1.050000 42010404.0000000000000
--0.750000 42020404.0000000000000
--0.450000 42030404.0000000000000
--0.150000 42040404.0000000000000
-0.150000 42050404.0000000000000
-0.450000 42060404.0000000000000
-0.750000 42070404.0000000000000
-1.050000 42080404.0000000000000
-1.350000 42090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/fxy.yl b/CarpetAttic/Cart3dTest/test/periodic-x/fxy.yl
index 0349a3475..4a0d7a418 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/fxy.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/fxy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy y (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 42050005
+0 0 0 0 0 5 1 5 42050105
+0 0 0 0 0 5 2 5 42050205
+0 0 0 0 0 5 3 5 42050305
+0 0 0 0 0 5 4 5 42050405
+0 0 0 0 0 5 5 5 42050505
+0 0 0 0 0 5 6 5 42050605
+0 0 0 0 0 5 7 5 42050705
+0 0 0 0 0 5 8 5 42050805
+0 0 0 0 0 5 9 5 42050905
-"Time = 0.000000
--1.350000 42040004.0000000000000
--1.050000 42040104.0000000000000
--0.750000 42040204.0000000000000
--0.450000 42040304.0000000000000
--0.150000 42040404.0000000000000
-0.150000 42040504.0000000000000
-0.450000 42040604.0000000000000
-0.750000 42040704.0000000000000
-1.050000 42040804.0000000000000
-1.350000 42040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 42050005
+1 0 0 0 0 5 1 5 42050105
+1 0 0 0 0 5 2 5 42050205
+1 0 0 0 0 5 3 5 42050305
+1 0 0 0 0 5 4 5 42050405
+1 0 0 0 0 5 5 5 42050505
+1 0 0 0 0 5 6 5 42050605
+1 0 0 0 0 5 7 5 42050705
+1 0 0 0 0 5 8 5 42050805
+1 0 0 0 0 5 9 5 42050905
+
-"Time = 1.000000
--1.350000 42040004.0000000000000
--1.050000 42040104.0000000000000
--0.750000 42040204.0000000000000
--0.450000 42040304.0000000000000
--0.150000 42040404.0000000000000
-0.150000 42040504.0000000000000
-0.450000 42040604.0000000000000
-0.750000 42040704.0000000000000
-1.050000 42040804.0000000000000
-1.350000 42040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/fxy.zl b/CarpetAttic/Cart3dTest/test/periodic-x/fxy.zl
index 5266df830..b7ed6a093 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/fxy.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/fxy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy z (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 42050500
+0 0 0 0 0 5 5 1 42050501
+0 0 0 0 0 5 5 2 42050502
+0 0 0 0 0 5 5 3 42050503
+0 0 0 0 0 5 5 4 42050504
+0 0 0 0 0 5 5 5 42050505
+0 0 0 0 0 5 5 6 42050506
+0 0 0 0 0 5 5 7 42050507
+0 0 0 0 0 5 5 8 42050508
+0 0 0 0 0 5 5 9 42050509
-"Time = 0.000000
--1.350000 42040400.0000000000000
--1.050000 42040401.0000000000000
--0.750000 42040402.0000000000000
--0.450000 42040403.0000000000000
--0.150000 42040404.0000000000000
-0.150000 42040405.0000000000000
-0.450000 42040406.0000000000000
-0.750000 42040407.0000000000000
-1.050000 42040408.0000000000000
-1.350000 42040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 42050500
+1 0 0 0 0 5 5 1 42050501
+1 0 0 0 0 5 5 2 42050502
+1 0 0 0 0 5 5 3 42050503
+1 0 0 0 0 5 5 4 42050504
+1 0 0 0 0 5 5 5 42050505
+1 0 0 0 0 5 5 6 42050506
+1 0 0 0 0 5 5 7 42050507
+1 0 0 0 0 5 5 8 42050508
+1 0 0 0 0 5 5 9 42050509
+
-"Time = 1.000000
--1.350000 42040400.0000000000000
--1.050000 42040401.0000000000000
--0.750000 42040402.0000000000000
--0.450000 42040403.0000000000000
--0.150000 42040404.0000000000000
-0.150000 42040405.0000000000000
-0.450000 42040406.0000000000000
-0.750000 42040407.0000000000000
-1.050000 42040408.0000000000000
-1.350000 42040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/fxz.xl b/CarpetAttic/Cart3dTest/test/periodic-x/fxz.xl
index a51d4594d..1a33e9082 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/fxz.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/fxz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz x (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 43000505
+0 0 0 0 0 1 5 5 43010505
+0 0 0 0 0 2 5 5 43020505
+0 0 0 0 0 3 5 5 43030505
+0 0 0 0 0 4 5 5 43040505
+0 0 0 0 0 5 5 5 43050505
+0 0 0 0 0 6 5 5 43060505
+0 0 0 0 0 7 5 5 43070505
+0 0 0 0 0 8 5 5 43080505
+0 0 0 0 0 9 5 5 43090505
-"Time = 0.000000
--1.350000 43000404.0000000000000
--1.050000 43010404.0000000000000
--0.750000 43020404.0000000000000
--0.450000 43030404.0000000000000
--0.150000 43040404.0000000000000
-0.150000 43050404.0000000000000
-0.450000 43060404.0000000000000
-0.750000 43070404.0000000000000
-1.050000 43080404.0000000000000
-1.350000 43090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 43000505
+1 0 0 0 0 1 5 5 43010505
+1 0 0 0 0 2 5 5 43020505
+1 0 0 0 0 3 5 5 43030505
+1 0 0 0 0 4 5 5 43040505
+1 0 0 0 0 5 5 5 43050505
+1 0 0 0 0 6 5 5 43060505
+1 0 0 0 0 7 5 5 43070505
+1 0 0 0 0 8 5 5 43080505
+1 0 0 0 0 9 5 5 43090505
+
-"Time = 1.000000
--1.350000 43000404.0000000000000
--1.050000 43010404.0000000000000
--0.750000 43020404.0000000000000
--0.450000 43030404.0000000000000
--0.150000 43040404.0000000000000
-0.150000 43050404.0000000000000
-0.450000 43060404.0000000000000
-0.750000 43070404.0000000000000
-1.050000 43080404.0000000000000
-1.350000 43090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/fxz.yl b/CarpetAttic/Cart3dTest/test/periodic-x/fxz.yl
index 443b6e499..866f8e838 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/fxz.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/fxz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz y (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 43050005
+0 0 0 0 0 5 1 5 43050105
+0 0 0 0 0 5 2 5 43050205
+0 0 0 0 0 5 3 5 43050305
+0 0 0 0 0 5 4 5 43050405
+0 0 0 0 0 5 5 5 43050505
+0 0 0 0 0 5 6 5 43050605
+0 0 0 0 0 5 7 5 43050705
+0 0 0 0 0 5 8 5 43050805
+0 0 0 0 0 5 9 5 43050905
-"Time = 0.000000
--1.350000 43040004.0000000000000
--1.050000 43040104.0000000000000
--0.750000 43040204.0000000000000
--0.450000 43040304.0000000000000
--0.150000 43040404.0000000000000
-0.150000 43040504.0000000000000
-0.450000 43040604.0000000000000
-0.750000 43040704.0000000000000
-1.050000 43040804.0000000000000
-1.350000 43040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 43050005
+1 0 0 0 0 5 1 5 43050105
+1 0 0 0 0 5 2 5 43050205
+1 0 0 0 0 5 3 5 43050305
+1 0 0 0 0 5 4 5 43050405
+1 0 0 0 0 5 5 5 43050505
+1 0 0 0 0 5 6 5 43050605
+1 0 0 0 0 5 7 5 43050705
+1 0 0 0 0 5 8 5 43050805
+1 0 0 0 0 5 9 5 43050905
+
-"Time = 1.000000
--1.350000 43040004.0000000000000
--1.050000 43040104.0000000000000
--0.750000 43040204.0000000000000
--0.450000 43040304.0000000000000
--0.150000 43040404.0000000000000
-0.150000 43040504.0000000000000
-0.450000 43040604.0000000000000
-0.750000 43040704.0000000000000
-1.050000 43040804.0000000000000
-1.350000 43040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/fxz.zl b/CarpetAttic/Cart3dTest/test/periodic-x/fxz.zl
index d4c16c1e3..a6716651f 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/fxz.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/fxz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz z (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 43050500
+0 0 0 0 0 5 5 1 43050501
+0 0 0 0 0 5 5 2 43050502
+0 0 0 0 0 5 5 3 43050503
+0 0 0 0 0 5 5 4 43050504
+0 0 0 0 0 5 5 5 43050505
+0 0 0 0 0 5 5 6 43050506
+0 0 0 0 0 5 5 7 43050507
+0 0 0 0 0 5 5 8 43050508
+0 0 0 0 0 5 5 9 43050509
-"Time = 0.000000
--1.350000 43040400.0000000000000
--1.050000 43040401.0000000000000
--0.750000 43040402.0000000000000
--0.450000 43040403.0000000000000
--0.150000 43040404.0000000000000
-0.150000 43040405.0000000000000
-0.450000 43040406.0000000000000
-0.750000 43040407.0000000000000
-1.050000 43040408.0000000000000
-1.350000 43040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 43050500
+1 0 0 0 0 5 5 1 43050501
+1 0 0 0 0 5 5 2 43050502
+1 0 0 0 0 5 5 3 43050503
+1 0 0 0 0 5 5 4 43050504
+1 0 0 0 0 5 5 5 43050505
+1 0 0 0 0 5 5 6 43050506
+1 0 0 0 0 5 5 7 43050507
+1 0 0 0 0 5 5 8 43050508
+1 0 0 0 0 5 5 9 43050509
+
-"Time = 1.000000
--1.350000 43040400.0000000000000
--1.050000 43040401.0000000000000
--0.750000 43040402.0000000000000
--0.450000 43040403.0000000000000
--0.150000 43040404.0000000000000
-0.150000 43040405.0000000000000
-0.450000 43040406.0000000000000
-0.750000 43040407.0000000000000
-1.050000 43040408.0000000000000
-1.350000 43040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/fyx.xl b/CarpetAttic/Cart3dTest/test/periodic-x/fyx.xl
index 98b712c6d..cae9cbe2d 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/fyx.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/fyx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx x (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 44000505
+0 0 0 0 0 1 5 5 44010505
+0 0 0 0 0 2 5 5 44020505
+0 0 0 0 0 3 5 5 44030505
+0 0 0 0 0 4 5 5 44040505
+0 0 0 0 0 5 5 5 44050505
+0 0 0 0 0 6 5 5 44060505
+0 0 0 0 0 7 5 5 44070505
+0 0 0 0 0 8 5 5 44080505
+0 0 0 0 0 9 5 5 44090505
-"Time = 0.000000
--1.350000 44000404.0000000000000
--1.050000 44010404.0000000000000
--0.750000 44020404.0000000000000
--0.450000 44030404.0000000000000
--0.150000 44040404.0000000000000
-0.150000 44050404.0000000000000
-0.450000 44060404.0000000000000
-0.750000 44070404.0000000000000
-1.050000 44080404.0000000000000
-1.350000 44090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 44000505
+1 0 0 0 0 1 5 5 44010505
+1 0 0 0 0 2 5 5 44020505
+1 0 0 0 0 3 5 5 44030505
+1 0 0 0 0 4 5 5 44040505
+1 0 0 0 0 5 5 5 44050505
+1 0 0 0 0 6 5 5 44060505
+1 0 0 0 0 7 5 5 44070505
+1 0 0 0 0 8 5 5 44080505
+1 0 0 0 0 9 5 5 44090505
+
-"Time = 1.000000
--1.350000 44000404.0000000000000
--1.050000 44010404.0000000000000
--0.750000 44020404.0000000000000
--0.450000 44030404.0000000000000
--0.150000 44040404.0000000000000
-0.150000 44050404.0000000000000
-0.450000 44060404.0000000000000
-0.750000 44070404.0000000000000
-1.050000 44080404.0000000000000
-1.350000 44090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/fyx.yl b/CarpetAttic/Cart3dTest/test/periodic-x/fyx.yl
index 51c881c01..5f874165c 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/fyx.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/fyx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx y (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 44050005
+0 0 0 0 0 5 1 5 44050105
+0 0 0 0 0 5 2 5 44050205
+0 0 0 0 0 5 3 5 44050305
+0 0 0 0 0 5 4 5 44050405
+0 0 0 0 0 5 5 5 44050505
+0 0 0 0 0 5 6 5 44050605
+0 0 0 0 0 5 7 5 44050705
+0 0 0 0 0 5 8 5 44050805
+0 0 0 0 0 5 9 5 44050905
-"Time = 0.000000
--1.350000 44040004.0000000000000
--1.050000 44040104.0000000000000
--0.750000 44040204.0000000000000
--0.450000 44040304.0000000000000
--0.150000 44040404.0000000000000
-0.150000 44040504.0000000000000
-0.450000 44040604.0000000000000
-0.750000 44040704.0000000000000
-1.050000 44040804.0000000000000
-1.350000 44040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 44050005
+1 0 0 0 0 5 1 5 44050105
+1 0 0 0 0 5 2 5 44050205
+1 0 0 0 0 5 3 5 44050305
+1 0 0 0 0 5 4 5 44050405
+1 0 0 0 0 5 5 5 44050505
+1 0 0 0 0 5 6 5 44050605
+1 0 0 0 0 5 7 5 44050705
+1 0 0 0 0 5 8 5 44050805
+1 0 0 0 0 5 9 5 44050905
+
-"Time = 1.000000
--1.350000 44040004.0000000000000
--1.050000 44040104.0000000000000
--0.750000 44040204.0000000000000
--0.450000 44040304.0000000000000
--0.150000 44040404.0000000000000
-0.150000 44040504.0000000000000
-0.450000 44040604.0000000000000
-0.750000 44040704.0000000000000
-1.050000 44040804.0000000000000
-1.350000 44040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/fyx.zl b/CarpetAttic/Cart3dTest/test/periodic-x/fyx.zl
index 2e7ff54fe..6ee8b911f 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/fyx.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/fyx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx z (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 44050500
+0 0 0 0 0 5 5 1 44050501
+0 0 0 0 0 5 5 2 44050502
+0 0 0 0 0 5 5 3 44050503
+0 0 0 0 0 5 5 4 44050504
+0 0 0 0 0 5 5 5 44050505
+0 0 0 0 0 5 5 6 44050506
+0 0 0 0 0 5 5 7 44050507
+0 0 0 0 0 5 5 8 44050508
+0 0 0 0 0 5 5 9 44050509
-"Time = 0.000000
--1.350000 44040400.0000000000000
--1.050000 44040401.0000000000000
--0.750000 44040402.0000000000000
--0.450000 44040403.0000000000000
--0.150000 44040404.0000000000000
-0.150000 44040405.0000000000000
-0.450000 44040406.0000000000000
-0.750000 44040407.0000000000000
-1.050000 44040408.0000000000000
-1.350000 44040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 44050500
+1 0 0 0 0 5 5 1 44050501
+1 0 0 0 0 5 5 2 44050502
+1 0 0 0 0 5 5 3 44050503
+1 0 0 0 0 5 5 4 44050504
+1 0 0 0 0 5 5 5 44050505
+1 0 0 0 0 5 5 6 44050506
+1 0 0 0 0 5 5 7 44050507
+1 0 0 0 0 5 5 8 44050508
+1 0 0 0 0 5 5 9 44050509
+
-"Time = 1.000000
--1.350000 44040400.0000000000000
--1.050000 44040401.0000000000000
--0.750000 44040402.0000000000000
--0.450000 44040403.0000000000000
--0.150000 44040404.0000000000000
-0.150000 44040405.0000000000000
-0.450000 44040406.0000000000000
-0.750000 44040407.0000000000000
-1.050000 44040408.0000000000000
-1.350000 44040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/fyy.xl b/CarpetAttic/Cart3dTest/test/periodic-x/fyy.xl
index dece88fbc..5008c5b15 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/fyy.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/fyy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy x (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 45000505
+0 0 0 0 0 1 5 5 45010505
+0 0 0 0 0 2 5 5 45020505
+0 0 0 0 0 3 5 5 45030505
+0 0 0 0 0 4 5 5 45040505
+0 0 0 0 0 5 5 5 45050505
+0 0 0 0 0 6 5 5 45060505
+0 0 0 0 0 7 5 5 45070505
+0 0 0 0 0 8 5 5 45080505
+0 0 0 0 0 9 5 5 45090505
-"Time = 0.000000
--1.350000 45000404.0000000000000
--1.050000 45010404.0000000000000
--0.750000 45020404.0000000000000
--0.450000 45030404.0000000000000
--0.150000 45040404.0000000000000
-0.150000 45050404.0000000000000
-0.450000 45060404.0000000000000
-0.750000 45070404.0000000000000
-1.050000 45080404.0000000000000
-1.350000 45090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 45000505
+1 0 0 0 0 1 5 5 45010505
+1 0 0 0 0 2 5 5 45020505
+1 0 0 0 0 3 5 5 45030505
+1 0 0 0 0 4 5 5 45040505
+1 0 0 0 0 5 5 5 45050505
+1 0 0 0 0 6 5 5 45060505
+1 0 0 0 0 7 5 5 45070505
+1 0 0 0 0 8 5 5 45080505
+1 0 0 0 0 9 5 5 45090505
+
-"Time = 1.000000
--1.350000 45000404.0000000000000
--1.050000 45010404.0000000000000
--0.750000 45020404.0000000000000
--0.450000 45030404.0000000000000
--0.150000 45040404.0000000000000
-0.150000 45050404.0000000000000
-0.450000 45060404.0000000000000
-0.750000 45070404.0000000000000
-1.050000 45080404.0000000000000
-1.350000 45090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/fyy.yl b/CarpetAttic/Cart3dTest/test/periodic-x/fyy.yl
index 0a85354ba..8396d09b1 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/fyy.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/fyy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy y (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 45050005
+0 0 0 0 0 5 1 5 45050105
+0 0 0 0 0 5 2 5 45050205
+0 0 0 0 0 5 3 5 45050305
+0 0 0 0 0 5 4 5 45050405
+0 0 0 0 0 5 5 5 45050505
+0 0 0 0 0 5 6 5 45050605
+0 0 0 0 0 5 7 5 45050705
+0 0 0 0 0 5 8 5 45050805
+0 0 0 0 0 5 9 5 45050905
-"Time = 0.000000
--1.350000 45040004.0000000000000
--1.050000 45040104.0000000000000
--0.750000 45040204.0000000000000
--0.450000 45040304.0000000000000
--0.150000 45040404.0000000000000
-0.150000 45040504.0000000000000
-0.450000 45040604.0000000000000
-0.750000 45040704.0000000000000
-1.050000 45040804.0000000000000
-1.350000 45040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 45050005
+1 0 0 0 0 5 1 5 45050105
+1 0 0 0 0 5 2 5 45050205
+1 0 0 0 0 5 3 5 45050305
+1 0 0 0 0 5 4 5 45050405
+1 0 0 0 0 5 5 5 45050505
+1 0 0 0 0 5 6 5 45050605
+1 0 0 0 0 5 7 5 45050705
+1 0 0 0 0 5 8 5 45050805
+1 0 0 0 0 5 9 5 45050905
+
-"Time = 1.000000
--1.350000 45040004.0000000000000
--1.050000 45040104.0000000000000
--0.750000 45040204.0000000000000
--0.450000 45040304.0000000000000
--0.150000 45040404.0000000000000
-0.150000 45040504.0000000000000
-0.450000 45040604.0000000000000
-0.750000 45040704.0000000000000
-1.050000 45040804.0000000000000
-1.350000 45040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/fyy.zl b/CarpetAttic/Cart3dTest/test/periodic-x/fyy.zl
index def96c2e1..864474fbb 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/fyy.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/fyy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy z (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 45050500
+0 0 0 0 0 5 5 1 45050501
+0 0 0 0 0 5 5 2 45050502
+0 0 0 0 0 5 5 3 45050503
+0 0 0 0 0 5 5 4 45050504
+0 0 0 0 0 5 5 5 45050505
+0 0 0 0 0 5 5 6 45050506
+0 0 0 0 0 5 5 7 45050507
+0 0 0 0 0 5 5 8 45050508
+0 0 0 0 0 5 5 9 45050509
-"Time = 0.000000
--1.350000 45040400.0000000000000
--1.050000 45040401.0000000000000
--0.750000 45040402.0000000000000
--0.450000 45040403.0000000000000
--0.150000 45040404.0000000000000
-0.150000 45040405.0000000000000
-0.450000 45040406.0000000000000
-0.750000 45040407.0000000000000
-1.050000 45040408.0000000000000
-1.350000 45040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 45050500
+1 0 0 0 0 5 5 1 45050501
+1 0 0 0 0 5 5 2 45050502
+1 0 0 0 0 5 5 3 45050503
+1 0 0 0 0 5 5 4 45050504
+1 0 0 0 0 5 5 5 45050505
+1 0 0 0 0 5 5 6 45050506
+1 0 0 0 0 5 5 7 45050507
+1 0 0 0 0 5 5 8 45050508
+1 0 0 0 0 5 5 9 45050509
+
-"Time = 1.000000
--1.350000 45040400.0000000000000
--1.050000 45040401.0000000000000
--0.750000 45040402.0000000000000
--0.450000 45040403.0000000000000
--0.150000 45040404.0000000000000
-0.150000 45040405.0000000000000
-0.450000 45040406.0000000000000
-0.750000 45040407.0000000000000
-1.050000 45040408.0000000000000
-1.350000 45040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/fyz.xl b/CarpetAttic/Cart3dTest/test/periodic-x/fyz.xl
index cfcac0c16..d98ca2a15 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/fyz.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/fyz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz x (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 46000505
+0 0 0 0 0 1 5 5 46010505
+0 0 0 0 0 2 5 5 46020505
+0 0 0 0 0 3 5 5 46030505
+0 0 0 0 0 4 5 5 46040505
+0 0 0 0 0 5 5 5 46050505
+0 0 0 0 0 6 5 5 46060505
+0 0 0 0 0 7 5 5 46070505
+0 0 0 0 0 8 5 5 46080505
+0 0 0 0 0 9 5 5 46090505
-"Time = 0.000000
--1.350000 46000404.0000000000000
--1.050000 46010404.0000000000000
--0.750000 46020404.0000000000000
--0.450000 46030404.0000000000000
--0.150000 46040404.0000000000000
-0.150000 46050404.0000000000000
-0.450000 46060404.0000000000000
-0.750000 46070404.0000000000000
-1.050000 46080404.0000000000000
-1.350000 46090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 46000505
+1 0 0 0 0 1 5 5 46010505
+1 0 0 0 0 2 5 5 46020505
+1 0 0 0 0 3 5 5 46030505
+1 0 0 0 0 4 5 5 46040505
+1 0 0 0 0 5 5 5 46050505
+1 0 0 0 0 6 5 5 46060505
+1 0 0 0 0 7 5 5 46070505
+1 0 0 0 0 8 5 5 46080505
+1 0 0 0 0 9 5 5 46090505
+
-"Time = 1.000000
--1.350000 46000404.0000000000000
--1.050000 46010404.0000000000000
--0.750000 46020404.0000000000000
--0.450000 46030404.0000000000000
--0.150000 46040404.0000000000000
-0.150000 46050404.0000000000000
-0.450000 46060404.0000000000000
-0.750000 46070404.0000000000000
-1.050000 46080404.0000000000000
-1.350000 46090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/fyz.yl b/CarpetAttic/Cart3dTest/test/periodic-x/fyz.yl
index e0ece1e9f..028f1efd3 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/fyz.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/fyz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz y (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 46050005
+0 0 0 0 0 5 1 5 46050105
+0 0 0 0 0 5 2 5 46050205
+0 0 0 0 0 5 3 5 46050305
+0 0 0 0 0 5 4 5 46050405
+0 0 0 0 0 5 5 5 46050505
+0 0 0 0 0 5 6 5 46050605
+0 0 0 0 0 5 7 5 46050705
+0 0 0 0 0 5 8 5 46050805
+0 0 0 0 0 5 9 5 46050905
-"Time = 0.000000
--1.350000 46040004.0000000000000
--1.050000 46040104.0000000000000
--0.750000 46040204.0000000000000
--0.450000 46040304.0000000000000
--0.150000 46040404.0000000000000
-0.150000 46040504.0000000000000
-0.450000 46040604.0000000000000
-0.750000 46040704.0000000000000
-1.050000 46040804.0000000000000
-1.350000 46040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 46050005
+1 0 0 0 0 5 1 5 46050105
+1 0 0 0 0 5 2 5 46050205
+1 0 0 0 0 5 3 5 46050305
+1 0 0 0 0 5 4 5 46050405
+1 0 0 0 0 5 5 5 46050505
+1 0 0 0 0 5 6 5 46050605
+1 0 0 0 0 5 7 5 46050705
+1 0 0 0 0 5 8 5 46050805
+1 0 0 0 0 5 9 5 46050905
+
-"Time = 1.000000
--1.350000 46040004.0000000000000
--1.050000 46040104.0000000000000
--0.750000 46040204.0000000000000
--0.450000 46040304.0000000000000
--0.150000 46040404.0000000000000
-0.150000 46040504.0000000000000
-0.450000 46040604.0000000000000
-0.750000 46040704.0000000000000
-1.050000 46040804.0000000000000
-1.350000 46040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/fyz.zl b/CarpetAttic/Cart3dTest/test/periodic-x/fyz.zl
index 031a29c13..ac2902605 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/fyz.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/fyz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz z (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 46050500
+0 0 0 0 0 5 5 1 46050501
+0 0 0 0 0 5 5 2 46050502
+0 0 0 0 0 5 5 3 46050503
+0 0 0 0 0 5 5 4 46050504
+0 0 0 0 0 5 5 5 46050505
+0 0 0 0 0 5 5 6 46050506
+0 0 0 0 0 5 5 7 46050507
+0 0 0 0 0 5 5 8 46050508
+0 0 0 0 0 5 5 9 46050509
-"Time = 0.000000
--1.350000 46040400.0000000000000
--1.050000 46040401.0000000000000
--0.750000 46040402.0000000000000
--0.450000 46040403.0000000000000
--0.150000 46040404.0000000000000
-0.150000 46040405.0000000000000
-0.450000 46040406.0000000000000
-0.750000 46040407.0000000000000
-1.050000 46040408.0000000000000
-1.350000 46040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 46050500
+1 0 0 0 0 5 5 1 46050501
+1 0 0 0 0 5 5 2 46050502
+1 0 0 0 0 5 5 3 46050503
+1 0 0 0 0 5 5 4 46050504
+1 0 0 0 0 5 5 5 46050505
+1 0 0 0 0 5 5 6 46050506
+1 0 0 0 0 5 5 7 46050507
+1 0 0 0 0 5 5 8 46050508
+1 0 0 0 0 5 5 9 46050509
+
-"Time = 1.000000
--1.350000 46040400.0000000000000
--1.050000 46040401.0000000000000
--0.750000 46040402.0000000000000
--0.450000 46040403.0000000000000
--0.150000 46040404.0000000000000
-0.150000 46040405.0000000000000
-0.450000 46040406.0000000000000
-0.750000 46040407.0000000000000
-1.050000 46040408.0000000000000
-1.350000 46040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/fzx.xl b/CarpetAttic/Cart3dTest/test/periodic-x/fzx.xl
index 58a73c86e..b13ff1471 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/fzx.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/fzx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx x (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 47000505
+0 0 0 0 0 1 5 5 47010505
+0 0 0 0 0 2 5 5 47020505
+0 0 0 0 0 3 5 5 47030505
+0 0 0 0 0 4 5 5 47040505
+0 0 0 0 0 5 5 5 47050505
+0 0 0 0 0 6 5 5 47060505
+0 0 0 0 0 7 5 5 47070505
+0 0 0 0 0 8 5 5 47080505
+0 0 0 0 0 9 5 5 47090505
-"Time = 0.000000
--1.350000 47000404.0000000000000
--1.050000 47010404.0000000000000
--0.750000 47020404.0000000000000
--0.450000 47030404.0000000000000
--0.150000 47040404.0000000000000
-0.150000 47050404.0000000000000
-0.450000 47060404.0000000000000
-0.750000 47070404.0000000000000
-1.050000 47080404.0000000000000
-1.350000 47090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 47000505
+1 0 0 0 0 1 5 5 47010505
+1 0 0 0 0 2 5 5 47020505
+1 0 0 0 0 3 5 5 47030505
+1 0 0 0 0 4 5 5 47040505
+1 0 0 0 0 5 5 5 47050505
+1 0 0 0 0 6 5 5 47060505
+1 0 0 0 0 7 5 5 47070505
+1 0 0 0 0 8 5 5 47080505
+1 0 0 0 0 9 5 5 47090505
+
-"Time = 1.000000
--1.350000 47000404.0000000000000
--1.050000 47010404.0000000000000
--0.750000 47020404.0000000000000
--0.450000 47030404.0000000000000
--0.150000 47040404.0000000000000
-0.150000 47050404.0000000000000
-0.450000 47060404.0000000000000
-0.750000 47070404.0000000000000
-1.050000 47080404.0000000000000
-1.350000 47090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/fzx.yl b/CarpetAttic/Cart3dTest/test/periodic-x/fzx.yl
index 2eb33d462..734fc768c 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/fzx.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/fzx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx y (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 47050005
+0 0 0 0 0 5 1 5 47050105
+0 0 0 0 0 5 2 5 47050205
+0 0 0 0 0 5 3 5 47050305
+0 0 0 0 0 5 4 5 47050405
+0 0 0 0 0 5 5 5 47050505
+0 0 0 0 0 5 6 5 47050605
+0 0 0 0 0 5 7 5 47050705
+0 0 0 0 0 5 8 5 47050805
+0 0 0 0 0 5 9 5 47050905
-"Time = 0.000000
--1.350000 47040004.0000000000000
--1.050000 47040104.0000000000000
--0.750000 47040204.0000000000000
--0.450000 47040304.0000000000000
--0.150000 47040404.0000000000000
-0.150000 47040504.0000000000000
-0.450000 47040604.0000000000000
-0.750000 47040704.0000000000000
-1.050000 47040804.0000000000000
-1.350000 47040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 47050005
+1 0 0 0 0 5 1 5 47050105
+1 0 0 0 0 5 2 5 47050205
+1 0 0 0 0 5 3 5 47050305
+1 0 0 0 0 5 4 5 47050405
+1 0 0 0 0 5 5 5 47050505
+1 0 0 0 0 5 6 5 47050605
+1 0 0 0 0 5 7 5 47050705
+1 0 0 0 0 5 8 5 47050805
+1 0 0 0 0 5 9 5 47050905
+
-"Time = 1.000000
--1.350000 47040004.0000000000000
--1.050000 47040104.0000000000000
--0.750000 47040204.0000000000000
--0.450000 47040304.0000000000000
--0.150000 47040404.0000000000000
-0.150000 47040504.0000000000000
-0.450000 47040604.0000000000000
-0.750000 47040704.0000000000000
-1.050000 47040804.0000000000000
-1.350000 47040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/fzx.zl b/CarpetAttic/Cart3dTest/test/periodic-x/fzx.zl
index 0f880c9b8..bf3324e04 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/fzx.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/fzx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx z (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 47050500
+0 0 0 0 0 5 5 1 47050501
+0 0 0 0 0 5 5 2 47050502
+0 0 0 0 0 5 5 3 47050503
+0 0 0 0 0 5 5 4 47050504
+0 0 0 0 0 5 5 5 47050505
+0 0 0 0 0 5 5 6 47050506
+0 0 0 0 0 5 5 7 47050507
+0 0 0 0 0 5 5 8 47050508
+0 0 0 0 0 5 5 9 47050509
-"Time = 0.000000
--1.350000 47040400.0000000000000
--1.050000 47040401.0000000000000
--0.750000 47040402.0000000000000
--0.450000 47040403.0000000000000
--0.150000 47040404.0000000000000
-0.150000 47040405.0000000000000
-0.450000 47040406.0000000000000
-0.750000 47040407.0000000000000
-1.050000 47040408.0000000000000
-1.350000 47040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 47050500
+1 0 0 0 0 5 5 1 47050501
+1 0 0 0 0 5 5 2 47050502
+1 0 0 0 0 5 5 3 47050503
+1 0 0 0 0 5 5 4 47050504
+1 0 0 0 0 5 5 5 47050505
+1 0 0 0 0 5 5 6 47050506
+1 0 0 0 0 5 5 7 47050507
+1 0 0 0 0 5 5 8 47050508
+1 0 0 0 0 5 5 9 47050509
+
-"Time = 1.000000
--1.350000 47040400.0000000000000
--1.050000 47040401.0000000000000
--0.750000 47040402.0000000000000
--0.450000 47040403.0000000000000
--0.150000 47040404.0000000000000
-0.150000 47040405.0000000000000
-0.450000 47040406.0000000000000
-0.750000 47040407.0000000000000
-1.050000 47040408.0000000000000
-1.350000 47040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/fzy.xl b/CarpetAttic/Cart3dTest/test/periodic-x/fzy.xl
index 24e570127..d8b2ffa66 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/fzy.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/fzy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy x (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 48000505
+0 0 0 0 0 1 5 5 48010505
+0 0 0 0 0 2 5 5 48020505
+0 0 0 0 0 3 5 5 48030505
+0 0 0 0 0 4 5 5 48040505
+0 0 0 0 0 5 5 5 48050505
+0 0 0 0 0 6 5 5 48060505
+0 0 0 0 0 7 5 5 48070505
+0 0 0 0 0 8 5 5 48080505
+0 0 0 0 0 9 5 5 48090505
-"Time = 0.000000
--1.350000 48000404.0000000000000
--1.050000 48010404.0000000000000
--0.750000 48020404.0000000000000
--0.450000 48030404.0000000000000
--0.150000 48040404.0000000000000
-0.150000 48050404.0000000000000
-0.450000 48060404.0000000000000
-0.750000 48070404.0000000000000
-1.050000 48080404.0000000000000
-1.350000 48090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 48000505
+1 0 0 0 0 1 5 5 48010505
+1 0 0 0 0 2 5 5 48020505
+1 0 0 0 0 3 5 5 48030505
+1 0 0 0 0 4 5 5 48040505
+1 0 0 0 0 5 5 5 48050505
+1 0 0 0 0 6 5 5 48060505
+1 0 0 0 0 7 5 5 48070505
+1 0 0 0 0 8 5 5 48080505
+1 0 0 0 0 9 5 5 48090505
+
-"Time = 1.000000
--1.350000 48000404.0000000000000
--1.050000 48010404.0000000000000
--0.750000 48020404.0000000000000
--0.450000 48030404.0000000000000
--0.150000 48040404.0000000000000
-0.150000 48050404.0000000000000
-0.450000 48060404.0000000000000
-0.750000 48070404.0000000000000
-1.050000 48080404.0000000000000
-1.350000 48090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/fzy.yl b/CarpetAttic/Cart3dTest/test/periodic-x/fzy.yl
index 6a5e074ca..bde3eb782 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/fzy.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/fzy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy y (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 48050005
+0 0 0 0 0 5 1 5 48050105
+0 0 0 0 0 5 2 5 48050205
+0 0 0 0 0 5 3 5 48050305
+0 0 0 0 0 5 4 5 48050405
+0 0 0 0 0 5 5 5 48050505
+0 0 0 0 0 5 6 5 48050605
+0 0 0 0 0 5 7 5 48050705
+0 0 0 0 0 5 8 5 48050805
+0 0 0 0 0 5 9 5 48050905
-"Time = 0.000000
--1.350000 48040004.0000000000000
--1.050000 48040104.0000000000000
--0.750000 48040204.0000000000000
--0.450000 48040304.0000000000000
--0.150000 48040404.0000000000000
-0.150000 48040504.0000000000000
-0.450000 48040604.0000000000000
-0.750000 48040704.0000000000000
-1.050000 48040804.0000000000000
-1.350000 48040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 48050005
+1 0 0 0 0 5 1 5 48050105
+1 0 0 0 0 5 2 5 48050205
+1 0 0 0 0 5 3 5 48050305
+1 0 0 0 0 5 4 5 48050405
+1 0 0 0 0 5 5 5 48050505
+1 0 0 0 0 5 6 5 48050605
+1 0 0 0 0 5 7 5 48050705
+1 0 0 0 0 5 8 5 48050805
+1 0 0 0 0 5 9 5 48050905
+
-"Time = 1.000000
--1.350000 48040004.0000000000000
--1.050000 48040104.0000000000000
--0.750000 48040204.0000000000000
--0.450000 48040304.0000000000000
--0.150000 48040404.0000000000000
-0.150000 48040504.0000000000000
-0.450000 48040604.0000000000000
-0.750000 48040704.0000000000000
-1.050000 48040804.0000000000000
-1.350000 48040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/fzy.zl b/CarpetAttic/Cart3dTest/test/periodic-x/fzy.zl
index 382ea546f..f624242dc 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/fzy.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/fzy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy z (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 48050500
+0 0 0 0 0 5 5 1 48050501
+0 0 0 0 0 5 5 2 48050502
+0 0 0 0 0 5 5 3 48050503
+0 0 0 0 0 5 5 4 48050504
+0 0 0 0 0 5 5 5 48050505
+0 0 0 0 0 5 5 6 48050506
+0 0 0 0 0 5 5 7 48050507
+0 0 0 0 0 5 5 8 48050508
+0 0 0 0 0 5 5 9 48050509
-"Time = 0.000000
--1.350000 48040400.0000000000000
--1.050000 48040401.0000000000000
--0.750000 48040402.0000000000000
--0.450000 48040403.0000000000000
--0.150000 48040404.0000000000000
-0.150000 48040405.0000000000000
-0.450000 48040406.0000000000000
-0.750000 48040407.0000000000000
-1.050000 48040408.0000000000000
-1.350000 48040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 48050500
+1 0 0 0 0 5 5 1 48050501
+1 0 0 0 0 5 5 2 48050502
+1 0 0 0 0 5 5 3 48050503
+1 0 0 0 0 5 5 4 48050504
+1 0 0 0 0 5 5 5 48050505
+1 0 0 0 0 5 5 6 48050506
+1 0 0 0 0 5 5 7 48050507
+1 0 0 0 0 5 5 8 48050508
+1 0 0 0 0 5 5 9 48050509
+
-"Time = 1.000000
--1.350000 48040400.0000000000000
--1.050000 48040401.0000000000000
--0.750000 48040402.0000000000000
--0.450000 48040403.0000000000000
--0.150000 48040404.0000000000000
-0.150000 48040405.0000000000000
-0.450000 48040406.0000000000000
-0.750000 48040407.0000000000000
-1.050000 48040408.0000000000000
-1.350000 48040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/fzz.xl b/CarpetAttic/Cart3dTest/test/periodic-x/fzz.xl
index 8d275bbc1..9c8f5cbf0 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/fzz.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/fzz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz x (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 49000505
+0 0 0 0 0 1 5 5 49010505
+0 0 0 0 0 2 5 5 49020505
+0 0 0 0 0 3 5 5 49030505
+0 0 0 0 0 4 5 5 49040505
+0 0 0 0 0 5 5 5 49050505
+0 0 0 0 0 6 5 5 49060505
+0 0 0 0 0 7 5 5 49070505
+0 0 0 0 0 8 5 5 49080505
+0 0 0 0 0 9 5 5 49090505
-"Time = 0.000000
--1.350000 49000404.0000000000000
--1.050000 49010404.0000000000000
--0.750000 49020404.0000000000000
--0.450000 49030404.0000000000000
--0.150000 49040404.0000000000000
-0.150000 49050404.0000000000000
-0.450000 49060404.0000000000000
-0.750000 49070404.0000000000000
-1.050000 49080404.0000000000000
-1.350000 49090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 49000505
+1 0 0 0 0 1 5 5 49010505
+1 0 0 0 0 2 5 5 49020505
+1 0 0 0 0 3 5 5 49030505
+1 0 0 0 0 4 5 5 49040505
+1 0 0 0 0 5 5 5 49050505
+1 0 0 0 0 6 5 5 49060505
+1 0 0 0 0 7 5 5 49070505
+1 0 0 0 0 8 5 5 49080505
+1 0 0 0 0 9 5 5 49090505
+
-"Time = 1.000000
--1.350000 49000404.0000000000000
--1.050000 49010404.0000000000000
--0.750000 49020404.0000000000000
--0.450000 49030404.0000000000000
--0.150000 49040404.0000000000000
-0.150000 49050404.0000000000000
-0.450000 49060404.0000000000000
-0.750000 49070404.0000000000000
-1.050000 49080404.0000000000000
-1.350000 49090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/fzz.yl b/CarpetAttic/Cart3dTest/test/periodic-x/fzz.yl
index c9b0f9dd6..a5f45247e 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/fzz.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/fzz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz y (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 49050005
+0 0 0 0 0 5 1 5 49050105
+0 0 0 0 0 5 2 5 49050205
+0 0 0 0 0 5 3 5 49050305
+0 0 0 0 0 5 4 5 49050405
+0 0 0 0 0 5 5 5 49050505
+0 0 0 0 0 5 6 5 49050605
+0 0 0 0 0 5 7 5 49050705
+0 0 0 0 0 5 8 5 49050805
+0 0 0 0 0 5 9 5 49050905
-"Time = 0.000000
--1.350000 49040004.0000000000000
--1.050000 49040104.0000000000000
--0.750000 49040204.0000000000000
--0.450000 49040304.0000000000000
--0.150000 49040404.0000000000000
-0.150000 49040504.0000000000000
-0.450000 49040604.0000000000000
-0.750000 49040704.0000000000000
-1.050000 49040804.0000000000000
-1.350000 49040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 49050005
+1 0 0 0 0 5 1 5 49050105
+1 0 0 0 0 5 2 5 49050205
+1 0 0 0 0 5 3 5 49050305
+1 0 0 0 0 5 4 5 49050405
+1 0 0 0 0 5 5 5 49050505
+1 0 0 0 0 5 6 5 49050605
+1 0 0 0 0 5 7 5 49050705
+1 0 0 0 0 5 8 5 49050805
+1 0 0 0 0 5 9 5 49050905
+
-"Time = 1.000000
--1.350000 49040004.0000000000000
--1.050000 49040104.0000000000000
--0.750000 49040204.0000000000000
--0.450000 49040304.0000000000000
--0.150000 49040404.0000000000000
-0.150000 49040504.0000000000000
-0.450000 49040604.0000000000000
-0.750000 49040704.0000000000000
-1.050000 49040804.0000000000000
-1.350000 49040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/fzz.zl b/CarpetAttic/Cart3dTest/test/periodic-x/fzz.zl
index c28fa9215..364c0d582 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/fzz.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/fzz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz z (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 49050500
+0 0 0 0 0 5 5 1 49050501
+0 0 0 0 0 5 5 2 49050502
+0 0 0 0 0 5 5 3 49050503
+0 0 0 0 0 5 5 4 49050504
+0 0 0 0 0 5 5 5 49050505
+0 0 0 0 0 5 5 6 49050506
+0 0 0 0 0 5 5 7 49050507
+0 0 0 0 0 5 5 8 49050508
+0 0 0 0 0 5 5 9 49050509
-"Time = 0.000000
--1.350000 49040400.0000000000000
--1.050000 49040401.0000000000000
--0.750000 49040402.0000000000000
--0.450000 49040403.0000000000000
--0.150000 49040404.0000000000000
-0.150000 49040405.0000000000000
-0.450000 49040406.0000000000000
-0.750000 49040407.0000000000000
-1.050000 49040408.0000000000000
-1.350000 49040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 49050500
+1 0 0 0 0 5 5 1 49050501
+1 0 0 0 0 5 5 2 49050502
+1 0 0 0 0 5 5 3 49050503
+1 0 0 0 0 5 5 4 49050504
+1 0 0 0 0 5 5 5 49050505
+1 0 0 0 0 5 5 6 49050506
+1 0 0 0 0 5 5 7 49050507
+1 0 0 0 0 5 5 8 49050508
+1 0 0 0 0 5 5 9 49050509
+
-"Time = 1.000000
--1.350000 49040400.0000000000000
--1.050000 49040401.0000000000000
--0.750000 49040402.0000000000000
--0.450000 49040403.0000000000000
--0.150000 49040404.0000000000000
-0.150000 49040405.0000000000000
-0.450000 49040406.0000000000000
-0.750000 49040407.0000000000000
-1.050000 49040408.0000000000000
-1.350000 49040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/s.xl b/CarpetAttic/Cart3dTest/test/periodic-x/s.xl
index 043028545..14e43aa3e 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/s.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/s.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::s x (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 1000505
+0 0 0 0 0 1 5 5 1010505
+0 0 0 0 0 2 5 5 1020505
+0 0 0 0 0 3 5 5 1030505
+0 0 0 0 0 4 5 5 1040505
+0 0 0 0 0 5 5 5 1050505
+0 0 0 0 0 6 5 5 1060505
+0 0 0 0 0 7 5 5 1070505
+0 0 0 0 0 8 5 5 1080505
+0 0 0 0 0 9 5 5 1090505
-"Time = 0.000000
--1.350000 1000404.0000000000000
--1.050000 1010404.0000000000000
--0.750000 1020404.0000000000000
--0.450000 1030404.0000000000000
--0.150000 1040404.0000000000000
-0.150000 1050404.0000000000000
-0.450000 1060404.0000000000000
-0.750000 1070404.0000000000000
-1.050000 1080404.0000000000000
-1.350000 1090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 1000505
+1 0 0 0 0 1 5 5 1010505
+1 0 0 0 0 2 5 5 1020505
+1 0 0 0 0 3 5 5 1030505
+1 0 0 0 0 4 5 5 1040505
+1 0 0 0 0 5 5 5 1050505
+1 0 0 0 0 6 5 5 1060505
+1 0 0 0 0 7 5 5 1070505
+1 0 0 0 0 8 5 5 1080505
+1 0 0 0 0 9 5 5 1090505
+
-"Time = 1.000000
--1.350000 1000404.0000000000000
--1.050000 1010404.0000000000000
--0.750000 1020404.0000000000000
--0.450000 1030404.0000000000000
--0.150000 1040404.0000000000000
-0.150000 1050404.0000000000000
-0.450000 1060404.0000000000000
-0.750000 1070404.0000000000000
-1.050000 1080404.0000000000000
-1.350000 1090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/s.yl b/CarpetAttic/Cart3dTest/test/periodic-x/s.yl
index bcc21f685..a082c376e 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/s.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/s.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::s y (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 1050005
+0 0 0 0 0 5 1 5 1050105
+0 0 0 0 0 5 2 5 1050205
+0 0 0 0 0 5 3 5 1050305
+0 0 0 0 0 5 4 5 1050405
+0 0 0 0 0 5 5 5 1050505
+0 0 0 0 0 5 6 5 1050605
+0 0 0 0 0 5 7 5 1050705
+0 0 0 0 0 5 8 5 1050805
+0 0 0 0 0 5 9 5 1050905
-"Time = 0.000000
--1.350000 1040004.0000000000000
--1.050000 1040104.0000000000000
--0.750000 1040204.0000000000000
--0.450000 1040304.0000000000000
--0.150000 1040404.0000000000000
-0.150000 1040504.0000000000000
-0.450000 1040604.0000000000000
-0.750000 1040704.0000000000000
-1.050000 1040804.0000000000000
-1.350000 1040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 1050005
+1 0 0 0 0 5 1 5 1050105
+1 0 0 0 0 5 2 5 1050205
+1 0 0 0 0 5 3 5 1050305
+1 0 0 0 0 5 4 5 1050405
+1 0 0 0 0 5 5 5 1050505
+1 0 0 0 0 5 6 5 1050605
+1 0 0 0 0 5 7 5 1050705
+1 0 0 0 0 5 8 5 1050805
+1 0 0 0 0 5 9 5 1050905
+
-"Time = 1.000000
--1.350000 1040004.0000000000000
--1.050000 1040104.0000000000000
--0.750000 1040204.0000000000000
--0.450000 1040304.0000000000000
--0.150000 1040404.0000000000000
-0.150000 1040504.0000000000000
-0.450000 1040604.0000000000000
-0.750000 1040704.0000000000000
-1.050000 1040804.0000000000000
-1.350000 1040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/s.zl b/CarpetAttic/Cart3dTest/test/periodic-x/s.zl
index 3c05d5e50..45ce1cd7b 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/s.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/s.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::s z (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 1050500
+0 0 0 0 0 5 5 1 1050501
+0 0 0 0 0 5 5 2 1050502
+0 0 0 0 0 5 5 3 1050503
+0 0 0 0 0 5 5 4 1050504
+0 0 0 0 0 5 5 5 1050505
+0 0 0 0 0 5 5 6 1050506
+0 0 0 0 0 5 5 7 1050507
+0 0 0 0 0 5 5 8 1050508
+0 0 0 0 0 5 5 9 1050509
-"Time = 0.000000
--1.350000 1040400.0000000000000
--1.050000 1040401.0000000000000
--0.750000 1040402.0000000000000
--0.450000 1040403.0000000000000
--0.150000 1040404.0000000000000
-0.150000 1040405.0000000000000
-0.450000 1040406.0000000000000
-0.750000 1040407.0000000000000
-1.050000 1040408.0000000000000
-1.350000 1040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 1050500
+1 0 0 0 0 5 5 1 1050501
+1 0 0 0 0 5 5 2 1050502
+1 0 0 0 0 5 5 3 1050503
+1 0 0 0 0 5 5 4 1050504
+1 0 0 0 0 5 5 5 1050505
+1 0 0 0 0 5 5 6 1050506
+1 0 0 0 0 5 5 7 1050507
+1 0 0 0 0 5 5 8 1050508
+1 0 0 0 0 5 5 9 1050509
+
-"Time = 1.000000
--1.350000 1040400.0000000000000
--1.050000 1040401.0000000000000
--0.750000 1040402.0000000000000
--0.450000 1040403.0000000000000
--0.150000 1040404.0000000000000
-0.150000 1040405.0000000000000
-0.450000 1040406.0000000000000
-0.750000 1040407.0000000000000
-1.050000 1040408.0000000000000
-1.350000 1040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/spher3d_r.xl b/CarpetAttic/Cart3dTest/test/periodic-x/spher3d_r.xl
index 2865c92e4..b331c2bf4 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/spher3d_r.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/spher3d_r.xl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r x (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 1.36656503687164
+0 0 0 0 0 1 5 5 1.07121426428143
+0 0 0 0 0 2 5 5 0.779422863405995
+0 0 0 0 0 3 5 5 0.49749371855331
+0 0 0 0 0 4 5 5 0.259807621135332
+0 0 0 0 0 5 5 5 0.259807621135332
+0 0 0 0 0 6 5 5 0.49749371855331
+0 0 0 0 0 7 5 5 0.779422863405995
+0 0 0 0 0 8 5 5 1.07121426428143
+0 0 0 0 0 9 5 5 1.36656503687164
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 1.36656503687164
+1 0 0 0 0 1 5 5 1.07121426428143
+1 0 0 0 0 2 5 5 0.779422863405995
+1 0 0 0 0 3 5 5 0.49749371855331
+1 0 0 0 0 4 5 5 0.259807621135332
+1 0 0 0 0 5 5 5 0.259807621135332
+1 0 0 0 0 6 5 5 0.49749371855331
+1 0 0 0 0 7 5 5 0.779422863405995
+1 0 0 0 0 8 5 5 1.07121426428143
+1 0 0 0 0 9 5 5 1.36656503687164
+
-"Time = 1.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/spher3d_r.yl b/CarpetAttic/Cart3dTest/test/periodic-x/spher3d_r.yl
index 2865c92e4..8ca57fd44 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/spher3d_r.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/spher3d_r.yl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r y (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 1.36656503687164
+0 0 0 0 0 5 1 5 1.07121426428143
+0 0 0 0 0 5 2 5 0.779422863405995
+0 0 0 0 0 5 3 5 0.49749371855331
+0 0 0 0 0 5 4 5 0.259807621135332
+0 0 0 0 0 5 5 5 0.259807621135332
+0 0 0 0 0 5 6 5 0.49749371855331
+0 0 0 0 0 5 7 5 0.779422863405995
+0 0 0 0 0 5 8 5 1.07121426428143
+0 0 0 0 0 5 9 5 1.36656503687164
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 1.36656503687164
+1 0 0 0 0 5 1 5 1.07121426428143
+1 0 0 0 0 5 2 5 0.779422863405995
+1 0 0 0 0 5 3 5 0.49749371855331
+1 0 0 0 0 5 4 5 0.259807621135332
+1 0 0 0 0 5 5 5 0.259807621135332
+1 0 0 0 0 5 6 5 0.49749371855331
+1 0 0 0 0 5 7 5 0.779422863405995
+1 0 0 0 0 5 8 5 1.07121426428143
+1 0 0 0 0 5 9 5 1.36656503687164
+
-"Time = 1.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/spher3d_r.zl b/CarpetAttic/Cart3dTest/test/periodic-x/spher3d_r.zl
index 2865c92e4..677631008 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/spher3d_r.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/spher3d_r.zl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r z (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 1.36656503687164
+0 0 0 0 0 5 5 1 1.07121426428143
+0 0 0 0 0 5 5 2 0.779422863405995
+0 0 0 0 0 5 5 3 0.49749371855331
+0 0 0 0 0 5 5 4 0.259807621135332
+0 0 0 0 0 5 5 5 0.259807621135332
+0 0 0 0 0 5 5 6 0.49749371855331
+0 0 0 0 0 5 5 7 0.779422863405995
+0 0 0 0 0 5 5 8 1.07121426428143
+0 0 0 0 0 5 5 9 1.36656503687164
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 1.36656503687164
+1 0 0 0 0 5 5 1 1.07121426428143
+1 0 0 0 0 5 5 2 0.779422863405995
+1 0 0 0 0 5 5 3 0.49749371855331
+1 0 0 0 0 5 5 4 0.259807621135332
+1 0 0 0 0 5 5 5 0.259807621135332
+1 0 0 0 0 5 5 6 0.49749371855331
+1 0 0 0 0 5 5 7 0.779422863405995
+1 0 0 0 0 5 5 8 1.07121426428143
+1 0 0 0 0 5 5 9 1.36656503687164
+
-"Time = 1.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/txx.xl b/CarpetAttic/Cart3dTest/test/periodic-x/txx.xl
index 1cfbf4027..ec49b7513 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/txx.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/txx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx x (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 21000505
+0 0 0 0 0 1 5 5 21010505
+0 0 0 0 0 2 5 5 21020505
+0 0 0 0 0 3 5 5 21030505
+0 0 0 0 0 4 5 5 21040505
+0 0 0 0 0 5 5 5 21050505
+0 0 0 0 0 6 5 5 21060505
+0 0 0 0 0 7 5 5 21070505
+0 0 0 0 0 8 5 5 21080505
+0 0 0 0 0 9 5 5 21090505
-"Time = 0.000000
--1.350000 21000404.0000000000000
--1.050000 21010404.0000000000000
--0.750000 21020404.0000000000000
--0.450000 21030404.0000000000000
--0.150000 21040404.0000000000000
-0.150000 21050404.0000000000000
-0.450000 21060404.0000000000000
-0.750000 21070404.0000000000000
-1.050000 21080404.0000000000000
-1.350000 21090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 21000505
+1 0 0 0 0 1 5 5 21010505
+1 0 0 0 0 2 5 5 21020505
+1 0 0 0 0 3 5 5 21030505
+1 0 0 0 0 4 5 5 21040505
+1 0 0 0 0 5 5 5 21050505
+1 0 0 0 0 6 5 5 21060505
+1 0 0 0 0 7 5 5 21070505
+1 0 0 0 0 8 5 5 21080505
+1 0 0 0 0 9 5 5 21090505
+
-"Time = 1.000000
--1.350000 21000404.0000000000000
--1.050000 21010404.0000000000000
--0.750000 21020404.0000000000000
--0.450000 21030404.0000000000000
--0.150000 21040404.0000000000000
-0.150000 21050404.0000000000000
-0.450000 21060404.0000000000000
-0.750000 21070404.0000000000000
-1.050000 21080404.0000000000000
-1.350000 21090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/txx.yl b/CarpetAttic/Cart3dTest/test/periodic-x/txx.yl
index 2f1d9710a..9e35e0b71 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/txx.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/txx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx y (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 21050005
+0 0 0 0 0 5 1 5 21050105
+0 0 0 0 0 5 2 5 21050205
+0 0 0 0 0 5 3 5 21050305
+0 0 0 0 0 5 4 5 21050405
+0 0 0 0 0 5 5 5 21050505
+0 0 0 0 0 5 6 5 21050605
+0 0 0 0 0 5 7 5 21050705
+0 0 0 0 0 5 8 5 21050805
+0 0 0 0 0 5 9 5 21050905
-"Time = 0.000000
--1.350000 21040004.0000000000000
--1.050000 21040104.0000000000000
--0.750000 21040204.0000000000000
--0.450000 21040304.0000000000000
--0.150000 21040404.0000000000000
-0.150000 21040504.0000000000000
-0.450000 21040604.0000000000000
-0.750000 21040704.0000000000000
-1.050000 21040804.0000000000000
-1.350000 21040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 21050005
+1 0 0 0 0 5 1 5 21050105
+1 0 0 0 0 5 2 5 21050205
+1 0 0 0 0 5 3 5 21050305
+1 0 0 0 0 5 4 5 21050405
+1 0 0 0 0 5 5 5 21050505
+1 0 0 0 0 5 6 5 21050605
+1 0 0 0 0 5 7 5 21050705
+1 0 0 0 0 5 8 5 21050805
+1 0 0 0 0 5 9 5 21050905
+
-"Time = 1.000000
--1.350000 21040004.0000000000000
--1.050000 21040104.0000000000000
--0.750000 21040204.0000000000000
--0.450000 21040304.0000000000000
--0.150000 21040404.0000000000000
-0.150000 21040504.0000000000000
-0.450000 21040604.0000000000000
-0.750000 21040704.0000000000000
-1.050000 21040804.0000000000000
-1.350000 21040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/txx.zl b/CarpetAttic/Cart3dTest/test/periodic-x/txx.zl
index 2cf23b07f..53ce67a80 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/txx.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/txx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx z (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 21050500
+0 0 0 0 0 5 5 1 21050501
+0 0 0 0 0 5 5 2 21050502
+0 0 0 0 0 5 5 3 21050503
+0 0 0 0 0 5 5 4 21050504
+0 0 0 0 0 5 5 5 21050505
+0 0 0 0 0 5 5 6 21050506
+0 0 0 0 0 5 5 7 21050507
+0 0 0 0 0 5 5 8 21050508
+0 0 0 0 0 5 5 9 21050509
-"Time = 0.000000
--1.350000 21040400.0000000000000
--1.050000 21040401.0000000000000
--0.750000 21040402.0000000000000
--0.450000 21040403.0000000000000
--0.150000 21040404.0000000000000
-0.150000 21040405.0000000000000
-0.450000 21040406.0000000000000
-0.750000 21040407.0000000000000
-1.050000 21040408.0000000000000
-1.350000 21040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 21050500
+1 0 0 0 0 5 5 1 21050501
+1 0 0 0 0 5 5 2 21050502
+1 0 0 0 0 5 5 3 21050503
+1 0 0 0 0 5 5 4 21050504
+1 0 0 0 0 5 5 5 21050505
+1 0 0 0 0 5 5 6 21050506
+1 0 0 0 0 5 5 7 21050507
+1 0 0 0 0 5 5 8 21050508
+1 0 0 0 0 5 5 9 21050509
+
-"Time = 1.000000
--1.350000 21040400.0000000000000
--1.050000 21040401.0000000000000
--0.750000 21040402.0000000000000
--0.450000 21040403.0000000000000
--0.150000 21040404.0000000000000
-0.150000 21040405.0000000000000
-0.450000 21040406.0000000000000
-0.750000 21040407.0000000000000
-1.050000 21040408.0000000000000
-1.350000 21040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/txy.xl b/CarpetAttic/Cart3dTest/test/periodic-x/txy.xl
index d6312820e..c0a04db3d 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/txy.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/txy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy x (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 22000505
+0 0 0 0 0 1 5 5 22010505
+0 0 0 0 0 2 5 5 22020505
+0 0 0 0 0 3 5 5 22030505
+0 0 0 0 0 4 5 5 22040505
+0 0 0 0 0 5 5 5 22050505
+0 0 0 0 0 6 5 5 22060505
+0 0 0 0 0 7 5 5 22070505
+0 0 0 0 0 8 5 5 22080505
+0 0 0 0 0 9 5 5 22090505
-"Time = 0.000000
--1.350000 22000404.0000000000000
--1.050000 22010404.0000000000000
--0.750000 22020404.0000000000000
--0.450000 22030404.0000000000000
--0.150000 22040404.0000000000000
-0.150000 22050404.0000000000000
-0.450000 22060404.0000000000000
-0.750000 22070404.0000000000000
-1.050000 22080404.0000000000000
-1.350000 22090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 22000505
+1 0 0 0 0 1 5 5 22010505
+1 0 0 0 0 2 5 5 22020505
+1 0 0 0 0 3 5 5 22030505
+1 0 0 0 0 4 5 5 22040505
+1 0 0 0 0 5 5 5 22050505
+1 0 0 0 0 6 5 5 22060505
+1 0 0 0 0 7 5 5 22070505
+1 0 0 0 0 8 5 5 22080505
+1 0 0 0 0 9 5 5 22090505
+
-"Time = 1.000000
--1.350000 22000404.0000000000000
--1.050000 22010404.0000000000000
--0.750000 22020404.0000000000000
--0.450000 22030404.0000000000000
--0.150000 22040404.0000000000000
-0.150000 22050404.0000000000000
-0.450000 22060404.0000000000000
-0.750000 22070404.0000000000000
-1.050000 22080404.0000000000000
-1.350000 22090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/txy.yl b/CarpetAttic/Cart3dTest/test/periodic-x/txy.yl
index bacfdde62..676739e59 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/txy.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/txy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy y (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 22050005
+0 0 0 0 0 5 1 5 22050105
+0 0 0 0 0 5 2 5 22050205
+0 0 0 0 0 5 3 5 22050305
+0 0 0 0 0 5 4 5 22050405
+0 0 0 0 0 5 5 5 22050505
+0 0 0 0 0 5 6 5 22050605
+0 0 0 0 0 5 7 5 22050705
+0 0 0 0 0 5 8 5 22050805
+0 0 0 0 0 5 9 5 22050905
-"Time = 0.000000
--1.350000 22040004.0000000000000
--1.050000 22040104.0000000000000
--0.750000 22040204.0000000000000
--0.450000 22040304.0000000000000
--0.150000 22040404.0000000000000
-0.150000 22040504.0000000000000
-0.450000 22040604.0000000000000
-0.750000 22040704.0000000000000
-1.050000 22040804.0000000000000
-1.350000 22040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 22050005
+1 0 0 0 0 5 1 5 22050105
+1 0 0 0 0 5 2 5 22050205
+1 0 0 0 0 5 3 5 22050305
+1 0 0 0 0 5 4 5 22050405
+1 0 0 0 0 5 5 5 22050505
+1 0 0 0 0 5 6 5 22050605
+1 0 0 0 0 5 7 5 22050705
+1 0 0 0 0 5 8 5 22050805
+1 0 0 0 0 5 9 5 22050905
+
-"Time = 1.000000
--1.350000 22040004.0000000000000
--1.050000 22040104.0000000000000
--0.750000 22040204.0000000000000
--0.450000 22040304.0000000000000
--0.150000 22040404.0000000000000
-0.150000 22040504.0000000000000
-0.450000 22040604.0000000000000
-0.750000 22040704.0000000000000
-1.050000 22040804.0000000000000
-1.350000 22040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/txy.zl b/CarpetAttic/Cart3dTest/test/periodic-x/txy.zl
index d6077f554..1a41a546d 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/txy.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/txy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy z (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 22050500
+0 0 0 0 0 5 5 1 22050501
+0 0 0 0 0 5 5 2 22050502
+0 0 0 0 0 5 5 3 22050503
+0 0 0 0 0 5 5 4 22050504
+0 0 0 0 0 5 5 5 22050505
+0 0 0 0 0 5 5 6 22050506
+0 0 0 0 0 5 5 7 22050507
+0 0 0 0 0 5 5 8 22050508
+0 0 0 0 0 5 5 9 22050509
-"Time = 0.000000
--1.350000 22040400.0000000000000
--1.050000 22040401.0000000000000
--0.750000 22040402.0000000000000
--0.450000 22040403.0000000000000
--0.150000 22040404.0000000000000
-0.150000 22040405.0000000000000
-0.450000 22040406.0000000000000
-0.750000 22040407.0000000000000
-1.050000 22040408.0000000000000
-1.350000 22040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 22050500
+1 0 0 0 0 5 5 1 22050501
+1 0 0 0 0 5 5 2 22050502
+1 0 0 0 0 5 5 3 22050503
+1 0 0 0 0 5 5 4 22050504
+1 0 0 0 0 5 5 5 22050505
+1 0 0 0 0 5 5 6 22050506
+1 0 0 0 0 5 5 7 22050507
+1 0 0 0 0 5 5 8 22050508
+1 0 0 0 0 5 5 9 22050509
+
-"Time = 1.000000
--1.350000 22040400.0000000000000
--1.050000 22040401.0000000000000
--0.750000 22040402.0000000000000
--0.450000 22040403.0000000000000
--0.150000 22040404.0000000000000
-0.150000 22040405.0000000000000
-0.450000 22040406.0000000000000
-0.750000 22040407.0000000000000
-1.050000 22040408.0000000000000
-1.350000 22040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/txz.xl b/CarpetAttic/Cart3dTest/test/periodic-x/txz.xl
index ef2bcc682..ef056f783 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/txz.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/txz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz x (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 23000505
+0 0 0 0 0 1 5 5 23010505
+0 0 0 0 0 2 5 5 23020505
+0 0 0 0 0 3 5 5 23030505
+0 0 0 0 0 4 5 5 23040505
+0 0 0 0 0 5 5 5 23050505
+0 0 0 0 0 6 5 5 23060505
+0 0 0 0 0 7 5 5 23070505
+0 0 0 0 0 8 5 5 23080505
+0 0 0 0 0 9 5 5 23090505
-"Time = 0.000000
--1.350000 23000404.0000000000000
--1.050000 23010404.0000000000000
--0.750000 23020404.0000000000000
--0.450000 23030404.0000000000000
--0.150000 23040404.0000000000000
-0.150000 23050404.0000000000000
-0.450000 23060404.0000000000000
-0.750000 23070404.0000000000000
-1.050000 23080404.0000000000000
-1.350000 23090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 23000505
+1 0 0 0 0 1 5 5 23010505
+1 0 0 0 0 2 5 5 23020505
+1 0 0 0 0 3 5 5 23030505
+1 0 0 0 0 4 5 5 23040505
+1 0 0 0 0 5 5 5 23050505
+1 0 0 0 0 6 5 5 23060505
+1 0 0 0 0 7 5 5 23070505
+1 0 0 0 0 8 5 5 23080505
+1 0 0 0 0 9 5 5 23090505
+
-"Time = 1.000000
--1.350000 23000404.0000000000000
--1.050000 23010404.0000000000000
--0.750000 23020404.0000000000000
--0.450000 23030404.0000000000000
--0.150000 23040404.0000000000000
-0.150000 23050404.0000000000000
-0.450000 23060404.0000000000000
-0.750000 23070404.0000000000000
-1.050000 23080404.0000000000000
-1.350000 23090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/txz.yl b/CarpetAttic/Cart3dTest/test/periodic-x/txz.yl
index f3da09742..6e249be2d 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/txz.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/txz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz y (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 23050005
+0 0 0 0 0 5 1 5 23050105
+0 0 0 0 0 5 2 5 23050205
+0 0 0 0 0 5 3 5 23050305
+0 0 0 0 0 5 4 5 23050405
+0 0 0 0 0 5 5 5 23050505
+0 0 0 0 0 5 6 5 23050605
+0 0 0 0 0 5 7 5 23050705
+0 0 0 0 0 5 8 5 23050805
+0 0 0 0 0 5 9 5 23050905
-"Time = 0.000000
--1.350000 23040004.0000000000000
--1.050000 23040104.0000000000000
--0.750000 23040204.0000000000000
--0.450000 23040304.0000000000000
--0.150000 23040404.0000000000000
-0.150000 23040504.0000000000000
-0.450000 23040604.0000000000000
-0.750000 23040704.0000000000000
-1.050000 23040804.0000000000000
-1.350000 23040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 23050005
+1 0 0 0 0 5 1 5 23050105
+1 0 0 0 0 5 2 5 23050205
+1 0 0 0 0 5 3 5 23050305
+1 0 0 0 0 5 4 5 23050405
+1 0 0 0 0 5 5 5 23050505
+1 0 0 0 0 5 6 5 23050605
+1 0 0 0 0 5 7 5 23050705
+1 0 0 0 0 5 8 5 23050805
+1 0 0 0 0 5 9 5 23050905
+
-"Time = 1.000000
--1.350000 23040004.0000000000000
--1.050000 23040104.0000000000000
--0.750000 23040204.0000000000000
--0.450000 23040304.0000000000000
--0.150000 23040404.0000000000000
-0.150000 23040504.0000000000000
-0.450000 23040604.0000000000000
-0.750000 23040704.0000000000000
-1.050000 23040804.0000000000000
-1.350000 23040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/txz.zl b/CarpetAttic/Cart3dTest/test/periodic-x/txz.zl
index 57f19ade7..e64aa1884 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/txz.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/txz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz z (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 23050500
+0 0 0 0 0 5 5 1 23050501
+0 0 0 0 0 5 5 2 23050502
+0 0 0 0 0 5 5 3 23050503
+0 0 0 0 0 5 5 4 23050504
+0 0 0 0 0 5 5 5 23050505
+0 0 0 0 0 5 5 6 23050506
+0 0 0 0 0 5 5 7 23050507
+0 0 0 0 0 5 5 8 23050508
+0 0 0 0 0 5 5 9 23050509
-"Time = 0.000000
--1.350000 23040400.0000000000000
--1.050000 23040401.0000000000000
--0.750000 23040402.0000000000000
--0.450000 23040403.0000000000000
--0.150000 23040404.0000000000000
-0.150000 23040405.0000000000000
-0.450000 23040406.0000000000000
-0.750000 23040407.0000000000000
-1.050000 23040408.0000000000000
-1.350000 23040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 23050500
+1 0 0 0 0 5 5 1 23050501
+1 0 0 0 0 5 5 2 23050502
+1 0 0 0 0 5 5 3 23050503
+1 0 0 0 0 5 5 4 23050504
+1 0 0 0 0 5 5 5 23050505
+1 0 0 0 0 5 5 6 23050506
+1 0 0 0 0 5 5 7 23050507
+1 0 0 0 0 5 5 8 23050508
+1 0 0 0 0 5 5 9 23050509
+
-"Time = 1.000000
--1.350000 23040400.0000000000000
--1.050000 23040401.0000000000000
--0.750000 23040402.0000000000000
--0.450000 23040403.0000000000000
--0.150000 23040404.0000000000000
-0.150000 23040405.0000000000000
-0.450000 23040406.0000000000000
-0.750000 23040407.0000000000000
-1.050000 23040408.0000000000000
-1.350000 23040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/tyy.xl b/CarpetAttic/Cart3dTest/test/periodic-x/tyy.xl
index 6a34694eb..6a8ea71c4 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/tyy.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/tyy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy x (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 24000505
+0 0 0 0 0 1 5 5 24010505
+0 0 0 0 0 2 5 5 24020505
+0 0 0 0 0 3 5 5 24030505
+0 0 0 0 0 4 5 5 24040505
+0 0 0 0 0 5 5 5 24050505
+0 0 0 0 0 6 5 5 24060505
+0 0 0 0 0 7 5 5 24070505
+0 0 0 0 0 8 5 5 24080505
+0 0 0 0 0 9 5 5 24090505
-"Time = 0.000000
--1.350000 24000404.0000000000000
--1.050000 24010404.0000000000000
--0.750000 24020404.0000000000000
--0.450000 24030404.0000000000000
--0.150000 24040404.0000000000000
-0.150000 24050404.0000000000000
-0.450000 24060404.0000000000000
-0.750000 24070404.0000000000000
-1.050000 24080404.0000000000000
-1.350000 24090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 24000505
+1 0 0 0 0 1 5 5 24010505
+1 0 0 0 0 2 5 5 24020505
+1 0 0 0 0 3 5 5 24030505
+1 0 0 0 0 4 5 5 24040505
+1 0 0 0 0 5 5 5 24050505
+1 0 0 0 0 6 5 5 24060505
+1 0 0 0 0 7 5 5 24070505
+1 0 0 0 0 8 5 5 24080505
+1 0 0 0 0 9 5 5 24090505
+
-"Time = 1.000000
--1.350000 24000404.0000000000000
--1.050000 24010404.0000000000000
--0.750000 24020404.0000000000000
--0.450000 24030404.0000000000000
--0.150000 24040404.0000000000000
-0.150000 24050404.0000000000000
-0.450000 24060404.0000000000000
-0.750000 24070404.0000000000000
-1.050000 24080404.0000000000000
-1.350000 24090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/tyy.yl b/CarpetAttic/Cart3dTest/test/periodic-x/tyy.yl
index fe192d2e1..e84597fa8 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/tyy.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/tyy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy y (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 24050005
+0 0 0 0 0 5 1 5 24050105
+0 0 0 0 0 5 2 5 24050205
+0 0 0 0 0 5 3 5 24050305
+0 0 0 0 0 5 4 5 24050405
+0 0 0 0 0 5 5 5 24050505
+0 0 0 0 0 5 6 5 24050605
+0 0 0 0 0 5 7 5 24050705
+0 0 0 0 0 5 8 5 24050805
+0 0 0 0 0 5 9 5 24050905
-"Time = 0.000000
--1.350000 24040004.0000000000000
--1.050000 24040104.0000000000000
--0.750000 24040204.0000000000000
--0.450000 24040304.0000000000000
--0.150000 24040404.0000000000000
-0.150000 24040504.0000000000000
-0.450000 24040604.0000000000000
-0.750000 24040704.0000000000000
-1.050000 24040804.0000000000000
-1.350000 24040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 24050005
+1 0 0 0 0 5 1 5 24050105
+1 0 0 0 0 5 2 5 24050205
+1 0 0 0 0 5 3 5 24050305
+1 0 0 0 0 5 4 5 24050405
+1 0 0 0 0 5 5 5 24050505
+1 0 0 0 0 5 6 5 24050605
+1 0 0 0 0 5 7 5 24050705
+1 0 0 0 0 5 8 5 24050805
+1 0 0 0 0 5 9 5 24050905
+
-"Time = 1.000000
--1.350000 24040004.0000000000000
--1.050000 24040104.0000000000000
--0.750000 24040204.0000000000000
--0.450000 24040304.0000000000000
--0.150000 24040404.0000000000000
-0.150000 24040504.0000000000000
-0.450000 24040604.0000000000000
-0.750000 24040704.0000000000000
-1.050000 24040804.0000000000000
-1.350000 24040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/tyy.zl b/CarpetAttic/Cart3dTest/test/periodic-x/tyy.zl
index edaa43cf5..76876ffa8 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/tyy.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/tyy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy z (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 24050500
+0 0 0 0 0 5 5 1 24050501
+0 0 0 0 0 5 5 2 24050502
+0 0 0 0 0 5 5 3 24050503
+0 0 0 0 0 5 5 4 24050504
+0 0 0 0 0 5 5 5 24050505
+0 0 0 0 0 5 5 6 24050506
+0 0 0 0 0 5 5 7 24050507
+0 0 0 0 0 5 5 8 24050508
+0 0 0 0 0 5 5 9 24050509
-"Time = 0.000000
--1.350000 24040400.0000000000000
--1.050000 24040401.0000000000000
--0.750000 24040402.0000000000000
--0.450000 24040403.0000000000000
--0.150000 24040404.0000000000000
-0.150000 24040405.0000000000000
-0.450000 24040406.0000000000000
-0.750000 24040407.0000000000000
-1.050000 24040408.0000000000000
-1.350000 24040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 24050500
+1 0 0 0 0 5 5 1 24050501
+1 0 0 0 0 5 5 2 24050502
+1 0 0 0 0 5 5 3 24050503
+1 0 0 0 0 5 5 4 24050504
+1 0 0 0 0 5 5 5 24050505
+1 0 0 0 0 5 5 6 24050506
+1 0 0 0 0 5 5 7 24050507
+1 0 0 0 0 5 5 8 24050508
+1 0 0 0 0 5 5 9 24050509
+
-"Time = 1.000000
--1.350000 24040400.0000000000000
--1.050000 24040401.0000000000000
--0.750000 24040402.0000000000000
--0.450000 24040403.0000000000000
--0.150000 24040404.0000000000000
-0.150000 24040405.0000000000000
-0.450000 24040406.0000000000000
-0.750000 24040407.0000000000000
-1.050000 24040408.0000000000000
-1.350000 24040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/tyz.xl b/CarpetAttic/Cart3dTest/test/periodic-x/tyz.xl
index eceab34fe..011e5ce29 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/tyz.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/tyz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz x (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 25000505
+0 0 0 0 0 1 5 5 25010505
+0 0 0 0 0 2 5 5 25020505
+0 0 0 0 0 3 5 5 25030505
+0 0 0 0 0 4 5 5 25040505
+0 0 0 0 0 5 5 5 25050505
+0 0 0 0 0 6 5 5 25060505
+0 0 0 0 0 7 5 5 25070505
+0 0 0 0 0 8 5 5 25080505
+0 0 0 0 0 9 5 5 25090505
-"Time = 0.000000
--1.350000 25000404.0000000000000
--1.050000 25010404.0000000000000
--0.750000 25020404.0000000000000
--0.450000 25030404.0000000000000
--0.150000 25040404.0000000000000
-0.150000 25050404.0000000000000
-0.450000 25060404.0000000000000
-0.750000 25070404.0000000000000
-1.050000 25080404.0000000000000
-1.350000 25090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 25000505
+1 0 0 0 0 1 5 5 25010505
+1 0 0 0 0 2 5 5 25020505
+1 0 0 0 0 3 5 5 25030505
+1 0 0 0 0 4 5 5 25040505
+1 0 0 0 0 5 5 5 25050505
+1 0 0 0 0 6 5 5 25060505
+1 0 0 0 0 7 5 5 25070505
+1 0 0 0 0 8 5 5 25080505
+1 0 0 0 0 9 5 5 25090505
+
-"Time = 1.000000
--1.350000 25000404.0000000000000
--1.050000 25010404.0000000000000
--0.750000 25020404.0000000000000
--0.450000 25030404.0000000000000
--0.150000 25040404.0000000000000
-0.150000 25050404.0000000000000
-0.450000 25060404.0000000000000
-0.750000 25070404.0000000000000
-1.050000 25080404.0000000000000
-1.350000 25090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/tyz.yl b/CarpetAttic/Cart3dTest/test/periodic-x/tyz.yl
index 4eef9c4b9..68ca06705 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/tyz.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/tyz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz y (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 25050005
+0 0 0 0 0 5 1 5 25050105
+0 0 0 0 0 5 2 5 25050205
+0 0 0 0 0 5 3 5 25050305
+0 0 0 0 0 5 4 5 25050405
+0 0 0 0 0 5 5 5 25050505
+0 0 0 0 0 5 6 5 25050605
+0 0 0 0 0 5 7 5 25050705
+0 0 0 0 0 5 8 5 25050805
+0 0 0 0 0 5 9 5 25050905
-"Time = 0.000000
--1.350000 25040004.0000000000000
--1.050000 25040104.0000000000000
--0.750000 25040204.0000000000000
--0.450000 25040304.0000000000000
--0.150000 25040404.0000000000000
-0.150000 25040504.0000000000000
-0.450000 25040604.0000000000000
-0.750000 25040704.0000000000000
-1.050000 25040804.0000000000000
-1.350000 25040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 25050005
+1 0 0 0 0 5 1 5 25050105
+1 0 0 0 0 5 2 5 25050205
+1 0 0 0 0 5 3 5 25050305
+1 0 0 0 0 5 4 5 25050405
+1 0 0 0 0 5 5 5 25050505
+1 0 0 0 0 5 6 5 25050605
+1 0 0 0 0 5 7 5 25050705
+1 0 0 0 0 5 8 5 25050805
+1 0 0 0 0 5 9 5 25050905
+
-"Time = 1.000000
--1.350000 25040004.0000000000000
--1.050000 25040104.0000000000000
--0.750000 25040204.0000000000000
--0.450000 25040304.0000000000000
--0.150000 25040404.0000000000000
-0.150000 25040504.0000000000000
-0.450000 25040604.0000000000000
-0.750000 25040704.0000000000000
-1.050000 25040804.0000000000000
-1.350000 25040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/tyz.zl b/CarpetAttic/Cart3dTest/test/periodic-x/tyz.zl
index a0aa8abe2..798e9c83c 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/tyz.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/tyz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz z (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 25050500
+0 0 0 0 0 5 5 1 25050501
+0 0 0 0 0 5 5 2 25050502
+0 0 0 0 0 5 5 3 25050503
+0 0 0 0 0 5 5 4 25050504
+0 0 0 0 0 5 5 5 25050505
+0 0 0 0 0 5 5 6 25050506
+0 0 0 0 0 5 5 7 25050507
+0 0 0 0 0 5 5 8 25050508
+0 0 0 0 0 5 5 9 25050509
-"Time = 0.000000
--1.350000 25040400.0000000000000
--1.050000 25040401.0000000000000
--0.750000 25040402.0000000000000
--0.450000 25040403.0000000000000
--0.150000 25040404.0000000000000
-0.150000 25040405.0000000000000
-0.450000 25040406.0000000000000
-0.750000 25040407.0000000000000
-1.050000 25040408.0000000000000
-1.350000 25040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 25050500
+1 0 0 0 0 5 5 1 25050501
+1 0 0 0 0 5 5 2 25050502
+1 0 0 0 0 5 5 3 25050503
+1 0 0 0 0 5 5 4 25050504
+1 0 0 0 0 5 5 5 25050505
+1 0 0 0 0 5 5 6 25050506
+1 0 0 0 0 5 5 7 25050507
+1 0 0 0 0 5 5 8 25050508
+1 0 0 0 0 5 5 9 25050509
+
-"Time = 1.000000
--1.350000 25040400.0000000000000
--1.050000 25040401.0000000000000
--0.750000 25040402.0000000000000
--0.450000 25040403.0000000000000
--0.150000 25040404.0000000000000
-0.150000 25040405.0000000000000
-0.450000 25040406.0000000000000
-0.750000 25040407.0000000000000
-1.050000 25040408.0000000000000
-1.350000 25040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/tzz.xl b/CarpetAttic/Cart3dTest/test/periodic-x/tzz.xl
index 5e310afe3..0035c4de3 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/tzz.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/tzz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz x (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 26000505
+0 0 0 0 0 1 5 5 26010505
+0 0 0 0 0 2 5 5 26020505
+0 0 0 0 0 3 5 5 26030505
+0 0 0 0 0 4 5 5 26040505
+0 0 0 0 0 5 5 5 26050505
+0 0 0 0 0 6 5 5 26060505
+0 0 0 0 0 7 5 5 26070505
+0 0 0 0 0 8 5 5 26080505
+0 0 0 0 0 9 5 5 26090505
-"Time = 0.000000
--1.350000 26000404.0000000000000
--1.050000 26010404.0000000000000
--0.750000 26020404.0000000000000
--0.450000 26030404.0000000000000
--0.150000 26040404.0000000000000
-0.150000 26050404.0000000000000
-0.450000 26060404.0000000000000
-0.750000 26070404.0000000000000
-1.050000 26080404.0000000000000
-1.350000 26090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 26000505
+1 0 0 0 0 1 5 5 26010505
+1 0 0 0 0 2 5 5 26020505
+1 0 0 0 0 3 5 5 26030505
+1 0 0 0 0 4 5 5 26040505
+1 0 0 0 0 5 5 5 26050505
+1 0 0 0 0 6 5 5 26060505
+1 0 0 0 0 7 5 5 26070505
+1 0 0 0 0 8 5 5 26080505
+1 0 0 0 0 9 5 5 26090505
+
-"Time = 1.000000
--1.350000 26000404.0000000000000
--1.050000 26010404.0000000000000
--0.750000 26020404.0000000000000
--0.450000 26030404.0000000000000
--0.150000 26040404.0000000000000
-0.150000 26050404.0000000000000
-0.450000 26060404.0000000000000
-0.750000 26070404.0000000000000
-1.050000 26080404.0000000000000
-1.350000 26090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/tzz.yl b/CarpetAttic/Cart3dTest/test/periodic-x/tzz.yl
index 68b18665a..88ab8faba 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/tzz.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/tzz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz y (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 26050005
+0 0 0 0 0 5 1 5 26050105
+0 0 0 0 0 5 2 5 26050205
+0 0 0 0 0 5 3 5 26050305
+0 0 0 0 0 5 4 5 26050405
+0 0 0 0 0 5 5 5 26050505
+0 0 0 0 0 5 6 5 26050605
+0 0 0 0 0 5 7 5 26050705
+0 0 0 0 0 5 8 5 26050805
+0 0 0 0 0 5 9 5 26050905
-"Time = 0.000000
--1.350000 26040004.0000000000000
--1.050000 26040104.0000000000000
--0.750000 26040204.0000000000000
--0.450000 26040304.0000000000000
--0.150000 26040404.0000000000000
-0.150000 26040504.0000000000000
-0.450000 26040604.0000000000000
-0.750000 26040704.0000000000000
-1.050000 26040804.0000000000000
-1.350000 26040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 26050005
+1 0 0 0 0 5 1 5 26050105
+1 0 0 0 0 5 2 5 26050205
+1 0 0 0 0 5 3 5 26050305
+1 0 0 0 0 5 4 5 26050405
+1 0 0 0 0 5 5 5 26050505
+1 0 0 0 0 5 6 5 26050605
+1 0 0 0 0 5 7 5 26050705
+1 0 0 0 0 5 8 5 26050805
+1 0 0 0 0 5 9 5 26050905
+
-"Time = 1.000000
--1.350000 26040004.0000000000000
--1.050000 26040104.0000000000000
--0.750000 26040204.0000000000000
--0.450000 26040304.0000000000000
--0.150000 26040404.0000000000000
-0.150000 26040504.0000000000000
-0.450000 26040604.0000000000000
-0.750000 26040704.0000000000000
-1.050000 26040804.0000000000000
-1.350000 26040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/tzz.zl b/CarpetAttic/Cart3dTest/test/periodic-x/tzz.zl
index da9bcba76..e5544b027 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/tzz.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/tzz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz z (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 26050500
+0 0 0 0 0 5 5 1 26050501
+0 0 0 0 0 5 5 2 26050502
+0 0 0 0 0 5 5 3 26050503
+0 0 0 0 0 5 5 4 26050504
+0 0 0 0 0 5 5 5 26050505
+0 0 0 0 0 5 5 6 26050506
+0 0 0 0 0 5 5 7 26050507
+0 0 0 0 0 5 5 8 26050508
+0 0 0 0 0 5 5 9 26050509
-"Time = 0.000000
--1.350000 26040400.0000000000000
--1.050000 26040401.0000000000000
--0.750000 26040402.0000000000000
--0.450000 26040403.0000000000000
--0.150000 26040404.0000000000000
-0.150000 26040405.0000000000000
-0.450000 26040406.0000000000000
-0.750000 26040407.0000000000000
-1.050000 26040408.0000000000000
-1.350000 26040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 26050500
+1 0 0 0 0 5 5 1 26050501
+1 0 0 0 0 5 5 2 26050502
+1 0 0 0 0 5 5 3 26050503
+1 0 0 0 0 5 5 4 26050504
+1 0 0 0 0 5 5 5 26050505
+1 0 0 0 0 5 5 6 26050506
+1 0 0 0 0 5 5 7 26050507
+1 0 0 0 0 5 5 8 26050508
+1 0 0 0 0 5 5 9 26050509
+
-"Time = 1.000000
--1.350000 26040400.0000000000000
--1.050000 26040401.0000000000000
--0.750000 26040402.0000000000000
--0.450000 26040403.0000000000000
--0.150000 26040404.0000000000000
-0.150000 26040405.0000000000000
-0.450000 26040406.0000000000000
-0.750000 26040407.0000000000000
-1.050000 26040408.0000000000000
-1.350000 26040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/vx.xl b/CarpetAttic/Cart3dTest/test/periodic-x/vx.xl
index 444a4bcde..d4dafe57f 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/vx.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/vx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx x (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 11000505
+0 0 0 0 0 1 5 5 11010505
+0 0 0 0 0 2 5 5 11020505
+0 0 0 0 0 3 5 5 11030505
+0 0 0 0 0 4 5 5 11040505
+0 0 0 0 0 5 5 5 11050505
+0 0 0 0 0 6 5 5 11060505
+0 0 0 0 0 7 5 5 11070505
+0 0 0 0 0 8 5 5 11080505
+0 0 0 0 0 9 5 5 11090505
-"Time = 0.000000
--1.350000 11000404.0000000000000
--1.050000 11010404.0000000000000
--0.750000 11020404.0000000000000
--0.450000 11030404.0000000000000
--0.150000 11040404.0000000000000
-0.150000 11050404.0000000000000
-0.450000 11060404.0000000000000
-0.750000 11070404.0000000000000
-1.050000 11080404.0000000000000
-1.350000 11090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 11000505
+1 0 0 0 0 1 5 5 11010505
+1 0 0 0 0 2 5 5 11020505
+1 0 0 0 0 3 5 5 11030505
+1 0 0 0 0 4 5 5 11040505
+1 0 0 0 0 5 5 5 11050505
+1 0 0 0 0 6 5 5 11060505
+1 0 0 0 0 7 5 5 11070505
+1 0 0 0 0 8 5 5 11080505
+1 0 0 0 0 9 5 5 11090505
+
-"Time = 1.000000
--1.350000 11000404.0000000000000
--1.050000 11010404.0000000000000
--0.750000 11020404.0000000000000
--0.450000 11030404.0000000000000
--0.150000 11040404.0000000000000
-0.150000 11050404.0000000000000
-0.450000 11060404.0000000000000
-0.750000 11070404.0000000000000
-1.050000 11080404.0000000000000
-1.350000 11090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/vx.yl b/CarpetAttic/Cart3dTest/test/periodic-x/vx.yl
index b43e2246a..198564f76 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/vx.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/vx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx y (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 11050005
+0 0 0 0 0 5 1 5 11050105
+0 0 0 0 0 5 2 5 11050205
+0 0 0 0 0 5 3 5 11050305
+0 0 0 0 0 5 4 5 11050405
+0 0 0 0 0 5 5 5 11050505
+0 0 0 0 0 5 6 5 11050605
+0 0 0 0 0 5 7 5 11050705
+0 0 0 0 0 5 8 5 11050805
+0 0 0 0 0 5 9 5 11050905
-"Time = 0.000000
--1.350000 11040004.0000000000000
--1.050000 11040104.0000000000000
--0.750000 11040204.0000000000000
--0.450000 11040304.0000000000000
--0.150000 11040404.0000000000000
-0.150000 11040504.0000000000000
-0.450000 11040604.0000000000000
-0.750000 11040704.0000000000000
-1.050000 11040804.0000000000000
-1.350000 11040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 11050005
+1 0 0 0 0 5 1 5 11050105
+1 0 0 0 0 5 2 5 11050205
+1 0 0 0 0 5 3 5 11050305
+1 0 0 0 0 5 4 5 11050405
+1 0 0 0 0 5 5 5 11050505
+1 0 0 0 0 5 6 5 11050605
+1 0 0 0 0 5 7 5 11050705
+1 0 0 0 0 5 8 5 11050805
+1 0 0 0 0 5 9 5 11050905
+
-"Time = 1.000000
--1.350000 11040004.0000000000000
--1.050000 11040104.0000000000000
--0.750000 11040204.0000000000000
--0.450000 11040304.0000000000000
--0.150000 11040404.0000000000000
-0.150000 11040504.0000000000000
-0.450000 11040604.0000000000000
-0.750000 11040704.0000000000000
-1.050000 11040804.0000000000000
-1.350000 11040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/vx.zl b/CarpetAttic/Cart3dTest/test/periodic-x/vx.zl
index 2807edd31..24ff5a9f3 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/vx.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/vx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx z (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 11050500
+0 0 0 0 0 5 5 1 11050501
+0 0 0 0 0 5 5 2 11050502
+0 0 0 0 0 5 5 3 11050503
+0 0 0 0 0 5 5 4 11050504
+0 0 0 0 0 5 5 5 11050505
+0 0 0 0 0 5 5 6 11050506
+0 0 0 0 0 5 5 7 11050507
+0 0 0 0 0 5 5 8 11050508
+0 0 0 0 0 5 5 9 11050509
-"Time = 0.000000
--1.350000 11040400.0000000000000
--1.050000 11040401.0000000000000
--0.750000 11040402.0000000000000
--0.450000 11040403.0000000000000
--0.150000 11040404.0000000000000
-0.150000 11040405.0000000000000
-0.450000 11040406.0000000000000
-0.750000 11040407.0000000000000
-1.050000 11040408.0000000000000
-1.350000 11040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 11050500
+1 0 0 0 0 5 5 1 11050501
+1 0 0 0 0 5 5 2 11050502
+1 0 0 0 0 5 5 3 11050503
+1 0 0 0 0 5 5 4 11050504
+1 0 0 0 0 5 5 5 11050505
+1 0 0 0 0 5 5 6 11050506
+1 0 0 0 0 5 5 7 11050507
+1 0 0 0 0 5 5 8 11050508
+1 0 0 0 0 5 5 9 11050509
+
-"Time = 1.000000
--1.350000 11040400.0000000000000
--1.050000 11040401.0000000000000
--0.750000 11040402.0000000000000
--0.450000 11040403.0000000000000
--0.150000 11040404.0000000000000
-0.150000 11040405.0000000000000
-0.450000 11040406.0000000000000
-0.750000 11040407.0000000000000
-1.050000 11040408.0000000000000
-1.350000 11040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/vy.xl b/CarpetAttic/Cart3dTest/test/periodic-x/vy.xl
index 332f28267..487f382f4 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/vy.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/vy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy x (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 12000505
+0 0 0 0 0 1 5 5 12010505
+0 0 0 0 0 2 5 5 12020505
+0 0 0 0 0 3 5 5 12030505
+0 0 0 0 0 4 5 5 12040505
+0 0 0 0 0 5 5 5 12050505
+0 0 0 0 0 6 5 5 12060505
+0 0 0 0 0 7 5 5 12070505
+0 0 0 0 0 8 5 5 12080505
+0 0 0 0 0 9 5 5 12090505
-"Time = 0.000000
--1.350000 12000404.0000000000000
--1.050000 12010404.0000000000000
--0.750000 12020404.0000000000000
--0.450000 12030404.0000000000000
--0.150000 12040404.0000000000000
-0.150000 12050404.0000000000000
-0.450000 12060404.0000000000000
-0.750000 12070404.0000000000000
-1.050000 12080404.0000000000000
-1.350000 12090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 12000505
+1 0 0 0 0 1 5 5 12010505
+1 0 0 0 0 2 5 5 12020505
+1 0 0 0 0 3 5 5 12030505
+1 0 0 0 0 4 5 5 12040505
+1 0 0 0 0 5 5 5 12050505
+1 0 0 0 0 6 5 5 12060505
+1 0 0 0 0 7 5 5 12070505
+1 0 0 0 0 8 5 5 12080505
+1 0 0 0 0 9 5 5 12090505
+
-"Time = 1.000000
--1.350000 12000404.0000000000000
--1.050000 12010404.0000000000000
--0.750000 12020404.0000000000000
--0.450000 12030404.0000000000000
--0.150000 12040404.0000000000000
-0.150000 12050404.0000000000000
-0.450000 12060404.0000000000000
-0.750000 12070404.0000000000000
-1.050000 12080404.0000000000000
-1.350000 12090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/vy.yl b/CarpetAttic/Cart3dTest/test/periodic-x/vy.yl
index dd1f76078..47c58e06a 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/vy.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/vy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy y (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 12050005
+0 0 0 0 0 5 1 5 12050105
+0 0 0 0 0 5 2 5 12050205
+0 0 0 0 0 5 3 5 12050305
+0 0 0 0 0 5 4 5 12050405
+0 0 0 0 0 5 5 5 12050505
+0 0 0 0 0 5 6 5 12050605
+0 0 0 0 0 5 7 5 12050705
+0 0 0 0 0 5 8 5 12050805
+0 0 0 0 0 5 9 5 12050905
-"Time = 0.000000
--1.350000 12040004.0000000000000
--1.050000 12040104.0000000000000
--0.750000 12040204.0000000000000
--0.450000 12040304.0000000000000
--0.150000 12040404.0000000000000
-0.150000 12040504.0000000000000
-0.450000 12040604.0000000000000
-0.750000 12040704.0000000000000
-1.050000 12040804.0000000000000
-1.350000 12040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 12050005
+1 0 0 0 0 5 1 5 12050105
+1 0 0 0 0 5 2 5 12050205
+1 0 0 0 0 5 3 5 12050305
+1 0 0 0 0 5 4 5 12050405
+1 0 0 0 0 5 5 5 12050505
+1 0 0 0 0 5 6 5 12050605
+1 0 0 0 0 5 7 5 12050705
+1 0 0 0 0 5 8 5 12050805
+1 0 0 0 0 5 9 5 12050905
+
-"Time = 1.000000
--1.350000 12040004.0000000000000
--1.050000 12040104.0000000000000
--0.750000 12040204.0000000000000
--0.450000 12040304.0000000000000
--0.150000 12040404.0000000000000
-0.150000 12040504.0000000000000
-0.450000 12040604.0000000000000
-0.750000 12040704.0000000000000
-1.050000 12040804.0000000000000
-1.350000 12040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/vy.zl b/CarpetAttic/Cart3dTest/test/periodic-x/vy.zl
index a5e645a3d..11157352b 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/vy.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/vy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy z (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 12050500
+0 0 0 0 0 5 5 1 12050501
+0 0 0 0 0 5 5 2 12050502
+0 0 0 0 0 5 5 3 12050503
+0 0 0 0 0 5 5 4 12050504
+0 0 0 0 0 5 5 5 12050505
+0 0 0 0 0 5 5 6 12050506
+0 0 0 0 0 5 5 7 12050507
+0 0 0 0 0 5 5 8 12050508
+0 0 0 0 0 5 5 9 12050509
-"Time = 0.000000
--1.350000 12040400.0000000000000
--1.050000 12040401.0000000000000
--0.750000 12040402.0000000000000
--0.450000 12040403.0000000000000
--0.150000 12040404.0000000000000
-0.150000 12040405.0000000000000
-0.450000 12040406.0000000000000
-0.750000 12040407.0000000000000
-1.050000 12040408.0000000000000
-1.350000 12040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 12050500
+1 0 0 0 0 5 5 1 12050501
+1 0 0 0 0 5 5 2 12050502
+1 0 0 0 0 5 5 3 12050503
+1 0 0 0 0 5 5 4 12050504
+1 0 0 0 0 5 5 5 12050505
+1 0 0 0 0 5 5 6 12050506
+1 0 0 0 0 5 5 7 12050507
+1 0 0 0 0 5 5 8 12050508
+1 0 0 0 0 5 5 9 12050509
+
-"Time = 1.000000
--1.350000 12040400.0000000000000
--1.050000 12040401.0000000000000
--0.750000 12040402.0000000000000
--0.450000 12040403.0000000000000
--0.150000 12040404.0000000000000
-0.150000 12040405.0000000000000
-0.450000 12040406.0000000000000
-0.750000 12040407.0000000000000
-1.050000 12040408.0000000000000
-1.350000 12040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/vz.xl b/CarpetAttic/Cart3dTest/test/periodic-x/vz.xl
index 8ab106eea..7385d5001 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/vz.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/vz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz x (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 13000505
+0 0 0 0 0 1 5 5 13010505
+0 0 0 0 0 2 5 5 13020505
+0 0 0 0 0 3 5 5 13030505
+0 0 0 0 0 4 5 5 13040505
+0 0 0 0 0 5 5 5 13050505
+0 0 0 0 0 6 5 5 13060505
+0 0 0 0 0 7 5 5 13070505
+0 0 0 0 0 8 5 5 13080505
+0 0 0 0 0 9 5 5 13090505
-"Time = 0.000000
--1.350000 13000404.0000000000000
--1.050000 13010404.0000000000000
--0.750000 13020404.0000000000000
--0.450000 13030404.0000000000000
--0.150000 13040404.0000000000000
-0.150000 13050404.0000000000000
-0.450000 13060404.0000000000000
-0.750000 13070404.0000000000000
-1.050000 13080404.0000000000000
-1.350000 13090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 13000505
+1 0 0 0 0 1 5 5 13010505
+1 0 0 0 0 2 5 5 13020505
+1 0 0 0 0 3 5 5 13030505
+1 0 0 0 0 4 5 5 13040505
+1 0 0 0 0 5 5 5 13050505
+1 0 0 0 0 6 5 5 13060505
+1 0 0 0 0 7 5 5 13070505
+1 0 0 0 0 8 5 5 13080505
+1 0 0 0 0 9 5 5 13090505
+
-"Time = 1.000000
--1.350000 13000404.0000000000000
--1.050000 13010404.0000000000000
--0.750000 13020404.0000000000000
--0.450000 13030404.0000000000000
--0.150000 13040404.0000000000000
-0.150000 13050404.0000000000000
-0.450000 13060404.0000000000000
-0.750000 13070404.0000000000000
-1.050000 13080404.0000000000000
-1.350000 13090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/vz.yl b/CarpetAttic/Cart3dTest/test/periodic-x/vz.yl
index 4e5ac4add..b19d78d54 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/vz.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/vz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz y (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 13050005
+0 0 0 0 0 5 1 5 13050105
+0 0 0 0 0 5 2 5 13050205
+0 0 0 0 0 5 3 5 13050305
+0 0 0 0 0 5 4 5 13050405
+0 0 0 0 0 5 5 5 13050505
+0 0 0 0 0 5 6 5 13050605
+0 0 0 0 0 5 7 5 13050705
+0 0 0 0 0 5 8 5 13050805
+0 0 0 0 0 5 9 5 13050905
-"Time = 0.000000
--1.350000 13040004.0000000000000
--1.050000 13040104.0000000000000
--0.750000 13040204.0000000000000
--0.450000 13040304.0000000000000
--0.150000 13040404.0000000000000
-0.150000 13040504.0000000000000
-0.450000 13040604.0000000000000
-0.750000 13040704.0000000000000
-1.050000 13040804.0000000000000
-1.350000 13040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 13050005
+1 0 0 0 0 5 1 5 13050105
+1 0 0 0 0 5 2 5 13050205
+1 0 0 0 0 5 3 5 13050305
+1 0 0 0 0 5 4 5 13050405
+1 0 0 0 0 5 5 5 13050505
+1 0 0 0 0 5 6 5 13050605
+1 0 0 0 0 5 7 5 13050705
+1 0 0 0 0 5 8 5 13050805
+1 0 0 0 0 5 9 5 13050905
+
-"Time = 1.000000
--1.350000 13040004.0000000000000
--1.050000 13040104.0000000000000
--0.750000 13040204.0000000000000
--0.450000 13040304.0000000000000
--0.150000 13040404.0000000000000
-0.150000 13040504.0000000000000
-0.450000 13040604.0000000000000
-0.750000 13040704.0000000000000
-1.050000 13040804.0000000000000
-1.350000 13040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-x/vz.zl b/CarpetAttic/Cart3dTest/test/periodic-x/vz.zl
index f65643c09..3e3212924 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-x/vz.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-x/vz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz z (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 13050500
+0 0 0 0 0 5 5 1 13050501
+0 0 0 0 0 5 5 2 13050502
+0 0 0 0 0 5 5 3 13050503
+0 0 0 0 0 5 5 4 13050504
+0 0 0 0 0 5 5 5 13050505
+0 0 0 0 0 5 5 6 13050506
+0 0 0 0 0 5 5 7 13050507
+0 0 0 0 0 5 5 8 13050508
+0 0 0 0 0 5 5 9 13050509
-"Time = 0.000000
--1.350000 13040400.0000000000000
--1.050000 13040401.0000000000000
--0.750000 13040402.0000000000000
--0.450000 13040403.0000000000000
--0.150000 13040404.0000000000000
-0.150000 13040405.0000000000000
-0.450000 13040406.0000000000000
-0.750000 13040407.0000000000000
-1.050000 13040408.0000000000000
-1.350000 13040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 13050500
+1 0 0 0 0 5 5 1 13050501
+1 0 0 0 0 5 5 2 13050502
+1 0 0 0 0 5 5 3 13050503
+1 0 0 0 0 5 5 4 13050504
+1 0 0 0 0 5 5 5 13050505
+1 0 0 0 0 5 5 6 13050506
+1 0 0 0 0 5 5 7 13050507
+1 0 0 0 0 5 5 8 13050508
+1 0 0 0 0 5 5 9 13050509
+
-"Time = 1.000000
--1.350000 13040400.0000000000000
--1.050000 13040401.0000000000000
--0.750000 13040402.0000000000000
--0.450000 13040403.0000000000000
--0.150000 13040404.0000000000000
-0.150000 13040405.0000000000000
-0.450000 13040406.0000000000000
-0.750000 13040407.0000000000000
-1.050000 13040408.0000000000000
-1.350000 13040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/ax.xl b/CarpetAttic/Cart3dTest/test/periodic-y/ax.xl
index 64fc2ce29..a6dd976ff 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/ax.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/ax.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax x (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 31000505
+0 0 0 0 0 1 5 5 31010505
+0 0 0 0 0 2 5 5 31020505
+0 0 0 0 0 3 5 5 31030505
+0 0 0 0 0 4 5 5 31040505
+0 0 0 0 0 5 5 5 31050505
+0 0 0 0 0 6 5 5 31060505
+0 0 0 0 0 7 5 5 31070505
+0 0 0 0 0 8 5 5 31080505
+0 0 0 0 0 9 5 5 31090505
-"Time = 0.000000
--1.350000 31000404.0000000000000
--1.050000 31010404.0000000000000
--0.750000 31020404.0000000000000
--0.450000 31030404.0000000000000
--0.150000 31040404.0000000000000
-0.150000 31050404.0000000000000
-0.450000 31060404.0000000000000
-0.750000 31070404.0000000000000
-1.050000 31080404.0000000000000
-1.350000 31090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 31000505
+1 0 0 0 0 1 5 5 31010505
+1 0 0 0 0 2 5 5 31020505
+1 0 0 0 0 3 5 5 31030505
+1 0 0 0 0 4 5 5 31040505
+1 0 0 0 0 5 5 5 31050505
+1 0 0 0 0 6 5 5 31060505
+1 0 0 0 0 7 5 5 31070505
+1 0 0 0 0 8 5 5 31080505
+1 0 0 0 0 9 5 5 31090505
+
-"Time = 1.000000
--1.350000 31000404.0000000000000
--1.050000 31010404.0000000000000
--0.750000 31020404.0000000000000
--0.450000 31030404.0000000000000
--0.150000 31040404.0000000000000
-0.150000 31050404.0000000000000
-0.450000 31060404.0000000000000
-0.750000 31070404.0000000000000
-1.050000 31080404.0000000000000
-1.350000 31090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/ax.yl b/CarpetAttic/Cart3dTest/test/periodic-y/ax.yl
index b89ce60d3..dcb3173aa 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/ax.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/ax.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax y (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 31050005
+0 0 0 0 0 5 1 5 31050105
+0 0 0 0 0 5 2 5 31050205
+0 0 0 0 0 5 3 5 31050305
+0 0 0 0 0 5 4 5 31050405
+0 0 0 0 0 5 5 5 31050505
+0 0 0 0 0 5 6 5 31050605
+0 0 0 0 0 5 7 5 31050705
+0 0 0 0 0 5 8 5 31050805
+0 0 0 0 0 5 9 5 31050905
-"Time = 0.000000
--1.350000 31040004.0000000000000
--1.050000 31040104.0000000000000
--0.750000 31040204.0000000000000
--0.450000 31040304.0000000000000
--0.150000 31040404.0000000000000
-0.150000 31040504.0000000000000
-0.450000 31040604.0000000000000
-0.750000 31040704.0000000000000
-1.050000 31040804.0000000000000
-1.350000 31040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 31050805
+1 0 0 0 0 5 1 5 31050105
+1 0 0 0 0 5 2 5 31050205
+1 0 0 0 0 5 3 5 31050305
+1 0 0 0 0 5 4 5 31050405
+1 0 0 0 0 5 5 5 31050505
+1 0 0 0 0 5 6 5 31050605
+1 0 0 0 0 5 7 5 31050705
+1 0 0 0 0 5 8 5 31050805
+1 0 0 0 0 5 9 5 31050105
+
-"Time = 1.000000
--1.350000 31040804.0000000000000
--1.050000 31040104.0000000000000
--0.750000 31040204.0000000000000
--0.450000 31040304.0000000000000
--0.150000 31040404.0000000000000
-0.150000 31040504.0000000000000
-0.450000 31040604.0000000000000
-0.750000 31040704.0000000000000
-1.050000 31040804.0000000000000
-1.350000 31040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/ax.zl b/CarpetAttic/Cart3dTest/test/periodic-y/ax.zl
index 1d8a1b76b..d51caee5e 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/ax.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/ax.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax z (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 31050500
+0 0 0 0 0 5 5 1 31050501
+0 0 0 0 0 5 5 2 31050502
+0 0 0 0 0 5 5 3 31050503
+0 0 0 0 0 5 5 4 31050504
+0 0 0 0 0 5 5 5 31050505
+0 0 0 0 0 5 5 6 31050506
+0 0 0 0 0 5 5 7 31050507
+0 0 0 0 0 5 5 8 31050508
+0 0 0 0 0 5 5 9 31050509
-"Time = 0.000000
--1.350000 31040400.0000000000000
--1.050000 31040401.0000000000000
--0.750000 31040402.0000000000000
--0.450000 31040403.0000000000000
--0.150000 31040404.0000000000000
-0.150000 31040405.0000000000000
-0.450000 31040406.0000000000000
-0.750000 31040407.0000000000000
-1.050000 31040408.0000000000000
-1.350000 31040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 31050500
+1 0 0 0 0 5 5 1 31050501
+1 0 0 0 0 5 5 2 31050502
+1 0 0 0 0 5 5 3 31050503
+1 0 0 0 0 5 5 4 31050504
+1 0 0 0 0 5 5 5 31050505
+1 0 0 0 0 5 5 6 31050506
+1 0 0 0 0 5 5 7 31050507
+1 0 0 0 0 5 5 8 31050508
+1 0 0 0 0 5 5 9 31050509
+
-"Time = 1.000000
--1.350000 31040400.0000000000000
--1.050000 31040401.0000000000000
--0.750000 31040402.0000000000000
--0.450000 31040403.0000000000000
--0.150000 31040404.0000000000000
-0.150000 31040405.0000000000000
-0.450000 31040406.0000000000000
-0.750000 31040407.0000000000000
-1.050000 31040408.0000000000000
-1.350000 31040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/ay.xl b/CarpetAttic/Cart3dTest/test/periodic-y/ay.xl
index f7fa2388b..d98eb4ea0 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/ay.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/ay.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay x (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 32000505
+0 0 0 0 0 1 5 5 32010505
+0 0 0 0 0 2 5 5 32020505
+0 0 0 0 0 3 5 5 32030505
+0 0 0 0 0 4 5 5 32040505
+0 0 0 0 0 5 5 5 32050505
+0 0 0 0 0 6 5 5 32060505
+0 0 0 0 0 7 5 5 32070505
+0 0 0 0 0 8 5 5 32080505
+0 0 0 0 0 9 5 5 32090505
-"Time = 0.000000
--1.350000 32000404.0000000000000
--1.050000 32010404.0000000000000
--0.750000 32020404.0000000000000
--0.450000 32030404.0000000000000
--0.150000 32040404.0000000000000
-0.150000 32050404.0000000000000
-0.450000 32060404.0000000000000
-0.750000 32070404.0000000000000
-1.050000 32080404.0000000000000
-1.350000 32090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 32000505
+1 0 0 0 0 1 5 5 32010505
+1 0 0 0 0 2 5 5 32020505
+1 0 0 0 0 3 5 5 32030505
+1 0 0 0 0 4 5 5 32040505
+1 0 0 0 0 5 5 5 32050505
+1 0 0 0 0 6 5 5 32060505
+1 0 0 0 0 7 5 5 32070505
+1 0 0 0 0 8 5 5 32080505
+1 0 0 0 0 9 5 5 32090505
+
-"Time = 1.000000
--1.350000 32000404.0000000000000
--1.050000 32010404.0000000000000
--0.750000 32020404.0000000000000
--0.450000 32030404.0000000000000
--0.150000 32040404.0000000000000
-0.150000 32050404.0000000000000
-0.450000 32060404.0000000000000
-0.750000 32070404.0000000000000
-1.050000 32080404.0000000000000
-1.350000 32090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/ay.yl b/CarpetAttic/Cart3dTest/test/periodic-y/ay.yl
index f4280c526..fdd881e3f 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/ay.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/ay.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay y (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 32050005
+0 0 0 0 0 5 1 5 32050105
+0 0 0 0 0 5 2 5 32050205
+0 0 0 0 0 5 3 5 32050305
+0 0 0 0 0 5 4 5 32050405
+0 0 0 0 0 5 5 5 32050505
+0 0 0 0 0 5 6 5 32050605
+0 0 0 0 0 5 7 5 32050705
+0 0 0 0 0 5 8 5 32050805
+0 0 0 0 0 5 9 5 32050905
-"Time = 0.000000
--1.350000 32040004.0000000000000
--1.050000 32040104.0000000000000
--0.750000 32040204.0000000000000
--0.450000 32040304.0000000000000
--0.150000 32040404.0000000000000
-0.150000 32040504.0000000000000
-0.450000 32040604.0000000000000
-0.750000 32040704.0000000000000
-1.050000 32040804.0000000000000
-1.350000 32040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 32050805
+1 0 0 0 0 5 1 5 32050105
+1 0 0 0 0 5 2 5 32050205
+1 0 0 0 0 5 3 5 32050305
+1 0 0 0 0 5 4 5 32050405
+1 0 0 0 0 5 5 5 32050505
+1 0 0 0 0 5 6 5 32050605
+1 0 0 0 0 5 7 5 32050705
+1 0 0 0 0 5 8 5 32050805
+1 0 0 0 0 5 9 5 32050105
+
-"Time = 1.000000
--1.350000 32040804.0000000000000
--1.050000 32040104.0000000000000
--0.750000 32040204.0000000000000
--0.450000 32040304.0000000000000
--0.150000 32040404.0000000000000
-0.150000 32040504.0000000000000
-0.450000 32040604.0000000000000
-0.750000 32040704.0000000000000
-1.050000 32040804.0000000000000
-1.350000 32040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/ay.zl b/CarpetAttic/Cart3dTest/test/periodic-y/ay.zl
index 26668e7d6..5625bfb61 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/ay.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/ay.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay z (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 32050500
+0 0 0 0 0 5 5 1 32050501
+0 0 0 0 0 5 5 2 32050502
+0 0 0 0 0 5 5 3 32050503
+0 0 0 0 0 5 5 4 32050504
+0 0 0 0 0 5 5 5 32050505
+0 0 0 0 0 5 5 6 32050506
+0 0 0 0 0 5 5 7 32050507
+0 0 0 0 0 5 5 8 32050508
+0 0 0 0 0 5 5 9 32050509
-"Time = 0.000000
--1.350000 32040400.0000000000000
--1.050000 32040401.0000000000000
--0.750000 32040402.0000000000000
--0.450000 32040403.0000000000000
--0.150000 32040404.0000000000000
-0.150000 32040405.0000000000000
-0.450000 32040406.0000000000000
-0.750000 32040407.0000000000000
-1.050000 32040408.0000000000000
-1.350000 32040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 32050500
+1 0 0 0 0 5 5 1 32050501
+1 0 0 0 0 5 5 2 32050502
+1 0 0 0 0 5 5 3 32050503
+1 0 0 0 0 5 5 4 32050504
+1 0 0 0 0 5 5 5 32050505
+1 0 0 0 0 5 5 6 32050506
+1 0 0 0 0 5 5 7 32050507
+1 0 0 0 0 5 5 8 32050508
+1 0 0 0 0 5 5 9 32050509
+
-"Time = 1.000000
--1.350000 32040400.0000000000000
--1.050000 32040401.0000000000000
--0.750000 32040402.0000000000000
--0.450000 32040403.0000000000000
--0.150000 32040404.0000000000000
-0.150000 32040405.0000000000000
-0.450000 32040406.0000000000000
-0.750000 32040407.0000000000000
-1.050000 32040408.0000000000000
-1.350000 32040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/az.xl b/CarpetAttic/Cart3dTest/test/periodic-y/az.xl
index 0a4b1c7a6..9c2733464 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/az.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/az.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::az x (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 33000505
+0 0 0 0 0 1 5 5 33010505
+0 0 0 0 0 2 5 5 33020505
+0 0 0 0 0 3 5 5 33030505
+0 0 0 0 0 4 5 5 33040505
+0 0 0 0 0 5 5 5 33050505
+0 0 0 0 0 6 5 5 33060505
+0 0 0 0 0 7 5 5 33070505
+0 0 0 0 0 8 5 5 33080505
+0 0 0 0 0 9 5 5 33090505
-"Time = 0.000000
--1.350000 33000404.0000000000000
--1.050000 33010404.0000000000000
--0.750000 33020404.0000000000000
--0.450000 33030404.0000000000000
--0.150000 33040404.0000000000000
-0.150000 33050404.0000000000000
-0.450000 33060404.0000000000000
-0.750000 33070404.0000000000000
-1.050000 33080404.0000000000000
-1.350000 33090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 33000505
+1 0 0 0 0 1 5 5 33010505
+1 0 0 0 0 2 5 5 33020505
+1 0 0 0 0 3 5 5 33030505
+1 0 0 0 0 4 5 5 33040505
+1 0 0 0 0 5 5 5 33050505
+1 0 0 0 0 6 5 5 33060505
+1 0 0 0 0 7 5 5 33070505
+1 0 0 0 0 8 5 5 33080505
+1 0 0 0 0 9 5 5 33090505
+
-"Time = 1.000000
--1.350000 33000404.0000000000000
--1.050000 33010404.0000000000000
--0.750000 33020404.0000000000000
--0.450000 33030404.0000000000000
--0.150000 33040404.0000000000000
-0.150000 33050404.0000000000000
-0.450000 33060404.0000000000000
-0.750000 33070404.0000000000000
-1.050000 33080404.0000000000000
-1.350000 33090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/az.yl b/CarpetAttic/Cart3dTest/test/periodic-y/az.yl
index f0cf12fcc..961dd75d1 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/az.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/az.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::az y (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 33050005
+0 0 0 0 0 5 1 5 33050105
+0 0 0 0 0 5 2 5 33050205
+0 0 0 0 0 5 3 5 33050305
+0 0 0 0 0 5 4 5 33050405
+0 0 0 0 0 5 5 5 33050505
+0 0 0 0 0 5 6 5 33050605
+0 0 0 0 0 5 7 5 33050705
+0 0 0 0 0 5 8 5 33050805
+0 0 0 0 0 5 9 5 33050905
-"Time = 0.000000
--1.350000 33040004.0000000000000
--1.050000 33040104.0000000000000
--0.750000 33040204.0000000000000
--0.450000 33040304.0000000000000
--0.150000 33040404.0000000000000
-0.150000 33040504.0000000000000
-0.450000 33040604.0000000000000
-0.750000 33040704.0000000000000
-1.050000 33040804.0000000000000
-1.350000 33040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 33050805
+1 0 0 0 0 5 1 5 33050105
+1 0 0 0 0 5 2 5 33050205
+1 0 0 0 0 5 3 5 33050305
+1 0 0 0 0 5 4 5 33050405
+1 0 0 0 0 5 5 5 33050505
+1 0 0 0 0 5 6 5 33050605
+1 0 0 0 0 5 7 5 33050705
+1 0 0 0 0 5 8 5 33050805
+1 0 0 0 0 5 9 5 33050105
+
-"Time = 1.000000
--1.350000 33040804.0000000000000
--1.050000 33040104.0000000000000
--0.750000 33040204.0000000000000
--0.450000 33040304.0000000000000
--0.150000 33040404.0000000000000
-0.150000 33040504.0000000000000
-0.450000 33040604.0000000000000
-0.750000 33040704.0000000000000
-1.050000 33040804.0000000000000
-1.350000 33040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/az.zl b/CarpetAttic/Cart3dTest/test/periodic-y/az.zl
index b43da40e6..5c265cf14 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/az.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/az.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::az z (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 33050500
+0 0 0 0 0 5 5 1 33050501
+0 0 0 0 0 5 5 2 33050502
+0 0 0 0 0 5 5 3 33050503
+0 0 0 0 0 5 5 4 33050504
+0 0 0 0 0 5 5 5 33050505
+0 0 0 0 0 5 5 6 33050506
+0 0 0 0 0 5 5 7 33050507
+0 0 0 0 0 5 5 8 33050508
+0 0 0 0 0 5 5 9 33050509
-"Time = 0.000000
--1.350000 33040400.0000000000000
--1.050000 33040401.0000000000000
--0.750000 33040402.0000000000000
--0.450000 33040403.0000000000000
--0.150000 33040404.0000000000000
-0.150000 33040405.0000000000000
-0.450000 33040406.0000000000000
-0.750000 33040407.0000000000000
-1.050000 33040408.0000000000000
-1.350000 33040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 33050500
+1 0 0 0 0 5 5 1 33050501
+1 0 0 0 0 5 5 2 33050502
+1 0 0 0 0 5 5 3 33050503
+1 0 0 0 0 5 5 4 33050504
+1 0 0 0 0 5 5 5 33050505
+1 0 0 0 0 5 5 6 33050506
+1 0 0 0 0 5 5 7 33050507
+1 0 0 0 0 5 5 8 33050508
+1 0 0 0 0 5 5 9 33050509
+
-"Time = 1.000000
--1.350000 33040400.0000000000000
--1.050000 33040401.0000000000000
--0.750000 33040402.0000000000000
--0.450000 33040403.0000000000000
--0.150000 33040404.0000000000000
-0.150000 33040405.0000000000000
-0.450000 33040406.0000000000000
-0.750000 33040407.0000000000000
-1.050000 33040408.0000000000000
-1.350000 33040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_x.xl b/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_x.xl
index 33b36d0af..22e840206 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_x.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_x.xl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x x (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 -1.35
+0 0 0 0 0 1 5 5 -1.05
+0 0 0 0 0 2 5 5 -0.75
+0 0 0 0 0 3 5 5 -0.45
+0 0 0 0 0 4 5 5 -0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 6 5 5 0.45
+0 0 0 0 0 7 5 5 0.75
+0 0 0 0 0 8 5 5 1.05
+0 0 0 0 0 9 5 5 1.35
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 -1.35
+1 0 0 0 0 1 5 5 -1.05
+1 0 0 0 0 2 5 5 -0.75
+1 0 0 0 0 3 5 5 -0.45
+1 0 0 0 0 4 5 5 -0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 6 5 5 0.45
+1 0 0 0 0 7 5 5 0.75
+1 0 0 0 0 8 5 5 1.05
+1 0 0 0 0 9 5 5 1.35
+
-"Time = 1.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_x.yl b/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_x.yl
index 52b13d0ae..592815c82 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_x.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_x.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x y (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 0.15
+0 0 0 0 0 5 1 5 0.15
+0 0 0 0 0 5 2 5 0.15
+0 0 0 0 0 5 3 5 0.15
+0 0 0 0 0 5 4 5 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 6 5 0.15
+0 0 0 0 0 5 7 5 0.15
+0 0 0 0 0 5 8 5 0.15
+0 0 0 0 0 5 9 5 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 0.15
+1 0 0 0 0 5 1 5 0.15
+1 0 0 0 0 5 2 5 0.15
+1 0 0 0 0 5 3 5 0.15
+1 0 0 0 0 5 4 5 0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 5 6 5 0.15
+1 0 0 0 0 5 7 5 0.15
+1 0 0 0 0 5 8 5 0.15
+1 0 0 0 0 5 9 5 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_x.zl b/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_x.zl
index 52b13d0ae..1f894853b 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_x.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_x.zl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x z (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 0.15
+0 0 0 0 0 5 5 1 0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 5 5 3 0.15
+0 0 0 0 0 5 5 4 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 5 6 0.15
+0 0 0 0 0 5 5 7 0.15
+0 0 0 0 0 5 5 8 0.15
+0 0 0 0 0 5 5 9 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 0.15
+1 0 0 0 0 5 5 1 0.15
+1 0 0 0 0 5 5 2 0.15
+1 0 0 0 0 5 5 3 0.15
+1 0 0 0 0 5 5 4 0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 5 5 6 0.15
+1 0 0 0 0 5 5 7 0.15
+1 0 0 0 0 5 5 8 0.15
+1 0 0 0 0 5 5 9 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_y.xl b/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_y.xl
index 52b13d0ae..8ee8190c4 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_y.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_y.xl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y x (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 0.15
+0 0 0 0 0 1 5 5 0.15
+0 0 0 0 0 2 5 5 0.15
+0 0 0 0 0 3 5 5 0.15
+0 0 0 0 0 4 5 5 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 6 5 5 0.15
+0 0 0 0 0 7 5 5 0.15
+0 0 0 0 0 8 5 5 0.15
+0 0 0 0 0 9 5 5 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 0.15
+1 0 0 0 0 1 5 5 0.15
+1 0 0 0 0 2 5 5 0.15
+1 0 0 0 0 3 5 5 0.15
+1 0 0 0 0 4 5 5 0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 6 5 5 0.15
+1 0 0 0 0 7 5 5 0.15
+1 0 0 0 0 8 5 5 0.15
+1 0 0 0 0 9 5 5 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_y.yl b/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_y.yl
index 33b36d0af..aec69999e 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_y.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_y.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y y (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 -1.35
+0 0 0 0 0 5 1 5 -1.05
+0 0 0 0 0 5 2 5 -0.75
+0 0 0 0 0 5 3 5 -0.45
+0 0 0 0 0 5 4 5 -0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 6 5 0.45
+0 0 0 0 0 5 7 5 0.75
+0 0 0 0 0 5 8 5 1.05
+0 0 0 0 0 5 9 5 1.35
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 -1.35
+1 0 0 0 0 5 1 5 -1.05
+1 0 0 0 0 5 2 5 -0.75
+1 0 0 0 0 5 3 5 -0.45
+1 0 0 0 0 5 4 5 -0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 5 6 5 0.45
+1 0 0 0 0 5 7 5 0.75
+1 0 0 0 0 5 8 5 1.05
+1 0 0 0 0 5 9 5 1.35
+
-"Time = 1.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_y.zl b/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_y.zl
index 52b13d0ae..f32f3acb9 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_y.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_y.zl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y z (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 0.15
+0 0 0 0 0 5 5 1 0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 5 5 3 0.15
+0 0 0 0 0 5 5 4 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 5 6 0.15
+0 0 0 0 0 5 5 7 0.15
+0 0 0 0 0 5 5 8 0.15
+0 0 0 0 0 5 5 9 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 0.15
+1 0 0 0 0 5 5 1 0.15
+1 0 0 0 0 5 5 2 0.15
+1 0 0 0 0 5 5 3 0.15
+1 0 0 0 0 5 5 4 0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 5 5 6 0.15
+1 0 0 0 0 5 5 7 0.15
+1 0 0 0 0 5 5 8 0.15
+1 0 0 0 0 5 5 9 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_z.xl b/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_z.xl
index 52b13d0ae..400b19f39 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_z.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_z.xl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z x (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 0.15
+0 0 0 0 0 1 5 5 0.15
+0 0 0 0 0 2 5 5 0.15
+0 0 0 0 0 3 5 5 0.15
+0 0 0 0 0 4 5 5 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 6 5 5 0.15
+0 0 0 0 0 7 5 5 0.15
+0 0 0 0 0 8 5 5 0.15
+0 0 0 0 0 9 5 5 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 0.15
+1 0 0 0 0 1 5 5 0.15
+1 0 0 0 0 2 5 5 0.15
+1 0 0 0 0 3 5 5 0.15
+1 0 0 0 0 4 5 5 0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 6 5 5 0.15
+1 0 0 0 0 7 5 5 0.15
+1 0 0 0 0 8 5 5 0.15
+1 0 0 0 0 9 5 5 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_z.yl b/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_z.yl
index 52b13d0ae..0373176c5 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_z.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_z.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z y (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 0.15
+0 0 0 0 0 5 1 5 0.15
+0 0 0 0 0 5 2 5 0.15
+0 0 0 0 0 5 3 5 0.15
+0 0 0 0 0 5 4 5 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 6 5 0.15
+0 0 0 0 0 5 7 5 0.15
+0 0 0 0 0 5 8 5 0.15
+0 0 0 0 0 5 9 5 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 0.15
+1 0 0 0 0 5 1 5 0.15
+1 0 0 0 0 5 2 5 0.15
+1 0 0 0 0 5 3 5 0.15
+1 0 0 0 0 5 4 5 0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 5 6 5 0.15
+1 0 0 0 0 5 7 5 0.15
+1 0 0 0 0 5 8 5 0.15
+1 0 0 0 0 5 9 5 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_z.zl b/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_z.zl
index 33b36d0af..6fd48c20b 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_z.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/cart3d_z.zl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z z (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 -1.35
+0 0 0 0 0 5 5 1 -1.05
+0 0 0 0 0 5 5 2 -0.75
+0 0 0 0 0 5 5 3 -0.45
+0 0 0 0 0 5 5 4 -0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 5 6 0.45
+0 0 0 0 0 5 5 7 0.75
+0 0 0 0 0 5 5 8 1.05
+0 0 0 0 0 5 5 9 1.35
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 -1.35
+1 0 0 0 0 5 5 1 -1.05
+1 0 0 0 0 5 5 2 -0.75
+1 0 0 0 0 5 5 3 -0.45
+1 0 0 0 0 5 5 4 -0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 5 5 6 0.45
+1 0 0 0 0 5 5 7 0.75
+1 0 0 0 0 5 5 8 1.05
+1 0 0 0 0 5 5 9 1.35
+
-"Time = 1.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/fxx.xl b/CarpetAttic/Cart3dTest/test/periodic-y/fxx.xl
index 7e21c6074..f4e4dc8fd 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/fxx.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/fxx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx x (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 41000505
+0 0 0 0 0 1 5 5 41010505
+0 0 0 0 0 2 5 5 41020505
+0 0 0 0 0 3 5 5 41030505
+0 0 0 0 0 4 5 5 41040505
+0 0 0 0 0 5 5 5 41050505
+0 0 0 0 0 6 5 5 41060505
+0 0 0 0 0 7 5 5 41070505
+0 0 0 0 0 8 5 5 41080505
+0 0 0 0 0 9 5 5 41090505
-"Time = 0.000000
--1.350000 41000404.0000000000000
--1.050000 41010404.0000000000000
--0.750000 41020404.0000000000000
--0.450000 41030404.0000000000000
--0.150000 41040404.0000000000000
-0.150000 41050404.0000000000000
-0.450000 41060404.0000000000000
-0.750000 41070404.0000000000000
-1.050000 41080404.0000000000000
-1.350000 41090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 41000505
+1 0 0 0 0 1 5 5 41010505
+1 0 0 0 0 2 5 5 41020505
+1 0 0 0 0 3 5 5 41030505
+1 0 0 0 0 4 5 5 41040505
+1 0 0 0 0 5 5 5 41050505
+1 0 0 0 0 6 5 5 41060505
+1 0 0 0 0 7 5 5 41070505
+1 0 0 0 0 8 5 5 41080505
+1 0 0 0 0 9 5 5 41090505
+
-"Time = 1.000000
--1.350000 41000404.0000000000000
--1.050000 41010404.0000000000000
--0.750000 41020404.0000000000000
--0.450000 41030404.0000000000000
--0.150000 41040404.0000000000000
-0.150000 41050404.0000000000000
-0.450000 41060404.0000000000000
-0.750000 41070404.0000000000000
-1.050000 41080404.0000000000000
-1.350000 41090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/fxx.yl b/CarpetAttic/Cart3dTest/test/periodic-y/fxx.yl
index 45f35c170..635c93712 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/fxx.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/fxx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx y (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 41050005
+0 0 0 0 0 5 1 5 41050105
+0 0 0 0 0 5 2 5 41050205
+0 0 0 0 0 5 3 5 41050305
+0 0 0 0 0 5 4 5 41050405
+0 0 0 0 0 5 5 5 41050505
+0 0 0 0 0 5 6 5 41050605
+0 0 0 0 0 5 7 5 41050705
+0 0 0 0 0 5 8 5 41050805
+0 0 0 0 0 5 9 5 41050905
-"Time = 0.000000
--1.350000 41040004.0000000000000
--1.050000 41040104.0000000000000
--0.750000 41040204.0000000000000
--0.450000 41040304.0000000000000
--0.150000 41040404.0000000000000
-0.150000 41040504.0000000000000
-0.450000 41040604.0000000000000
-0.750000 41040704.0000000000000
-1.050000 41040804.0000000000000
-1.350000 41040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 41050805
+1 0 0 0 0 5 1 5 41050105
+1 0 0 0 0 5 2 5 41050205
+1 0 0 0 0 5 3 5 41050305
+1 0 0 0 0 5 4 5 41050405
+1 0 0 0 0 5 5 5 41050505
+1 0 0 0 0 5 6 5 41050605
+1 0 0 0 0 5 7 5 41050705
+1 0 0 0 0 5 8 5 41050805
+1 0 0 0 0 5 9 5 41050105
+
-"Time = 1.000000
--1.350000 41040804.0000000000000
--1.050000 41040104.0000000000000
--0.750000 41040204.0000000000000
--0.450000 41040304.0000000000000
--0.150000 41040404.0000000000000
-0.150000 41040504.0000000000000
-0.450000 41040604.0000000000000
-0.750000 41040704.0000000000000
-1.050000 41040804.0000000000000
-1.350000 41040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/fxx.zl b/CarpetAttic/Cart3dTest/test/periodic-y/fxx.zl
index 4f5d23b3f..d096693b5 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/fxx.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/fxx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx z (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 41050500
+0 0 0 0 0 5 5 1 41050501
+0 0 0 0 0 5 5 2 41050502
+0 0 0 0 0 5 5 3 41050503
+0 0 0 0 0 5 5 4 41050504
+0 0 0 0 0 5 5 5 41050505
+0 0 0 0 0 5 5 6 41050506
+0 0 0 0 0 5 5 7 41050507
+0 0 0 0 0 5 5 8 41050508
+0 0 0 0 0 5 5 9 41050509
-"Time = 0.000000
--1.350000 41040400.0000000000000
--1.050000 41040401.0000000000000
--0.750000 41040402.0000000000000
--0.450000 41040403.0000000000000
--0.150000 41040404.0000000000000
-0.150000 41040405.0000000000000
-0.450000 41040406.0000000000000
-0.750000 41040407.0000000000000
-1.050000 41040408.0000000000000
-1.350000 41040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 41050500
+1 0 0 0 0 5 5 1 41050501
+1 0 0 0 0 5 5 2 41050502
+1 0 0 0 0 5 5 3 41050503
+1 0 0 0 0 5 5 4 41050504
+1 0 0 0 0 5 5 5 41050505
+1 0 0 0 0 5 5 6 41050506
+1 0 0 0 0 5 5 7 41050507
+1 0 0 0 0 5 5 8 41050508
+1 0 0 0 0 5 5 9 41050509
+
-"Time = 1.000000
--1.350000 41040400.0000000000000
--1.050000 41040401.0000000000000
--0.750000 41040402.0000000000000
--0.450000 41040403.0000000000000
--0.150000 41040404.0000000000000
-0.150000 41040405.0000000000000
-0.450000 41040406.0000000000000
-0.750000 41040407.0000000000000
-1.050000 41040408.0000000000000
-1.350000 41040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/fxy.xl b/CarpetAttic/Cart3dTest/test/periodic-y/fxy.xl
index 8fd09cad7..bec381f14 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/fxy.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/fxy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy x (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 42000505
+0 0 0 0 0 1 5 5 42010505
+0 0 0 0 0 2 5 5 42020505
+0 0 0 0 0 3 5 5 42030505
+0 0 0 0 0 4 5 5 42040505
+0 0 0 0 0 5 5 5 42050505
+0 0 0 0 0 6 5 5 42060505
+0 0 0 0 0 7 5 5 42070505
+0 0 0 0 0 8 5 5 42080505
+0 0 0 0 0 9 5 5 42090505
-"Time = 0.000000
--1.350000 42000404.0000000000000
--1.050000 42010404.0000000000000
--0.750000 42020404.0000000000000
--0.450000 42030404.0000000000000
--0.150000 42040404.0000000000000
-0.150000 42050404.0000000000000
-0.450000 42060404.0000000000000
-0.750000 42070404.0000000000000
-1.050000 42080404.0000000000000
-1.350000 42090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 42000505
+1 0 0 0 0 1 5 5 42010505
+1 0 0 0 0 2 5 5 42020505
+1 0 0 0 0 3 5 5 42030505
+1 0 0 0 0 4 5 5 42040505
+1 0 0 0 0 5 5 5 42050505
+1 0 0 0 0 6 5 5 42060505
+1 0 0 0 0 7 5 5 42070505
+1 0 0 0 0 8 5 5 42080505
+1 0 0 0 0 9 5 5 42090505
+
-"Time = 1.000000
--1.350000 42000404.0000000000000
--1.050000 42010404.0000000000000
--0.750000 42020404.0000000000000
--0.450000 42030404.0000000000000
--0.150000 42040404.0000000000000
-0.150000 42050404.0000000000000
-0.450000 42060404.0000000000000
-0.750000 42070404.0000000000000
-1.050000 42080404.0000000000000
-1.350000 42090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/fxy.yl b/CarpetAttic/Cart3dTest/test/periodic-y/fxy.yl
index 45f9f64f6..961acf9dc 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/fxy.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/fxy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy y (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 42050005
+0 0 0 0 0 5 1 5 42050105
+0 0 0 0 0 5 2 5 42050205
+0 0 0 0 0 5 3 5 42050305
+0 0 0 0 0 5 4 5 42050405
+0 0 0 0 0 5 5 5 42050505
+0 0 0 0 0 5 6 5 42050605
+0 0 0 0 0 5 7 5 42050705
+0 0 0 0 0 5 8 5 42050805
+0 0 0 0 0 5 9 5 42050905
-"Time = 0.000000
--1.350000 42040004.0000000000000
--1.050000 42040104.0000000000000
--0.750000 42040204.0000000000000
--0.450000 42040304.0000000000000
--0.150000 42040404.0000000000000
-0.150000 42040504.0000000000000
-0.450000 42040604.0000000000000
-0.750000 42040704.0000000000000
-1.050000 42040804.0000000000000
-1.350000 42040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 42050805
+1 0 0 0 0 5 1 5 42050105
+1 0 0 0 0 5 2 5 42050205
+1 0 0 0 0 5 3 5 42050305
+1 0 0 0 0 5 4 5 42050405
+1 0 0 0 0 5 5 5 42050505
+1 0 0 0 0 5 6 5 42050605
+1 0 0 0 0 5 7 5 42050705
+1 0 0 0 0 5 8 5 42050805
+1 0 0 0 0 5 9 5 42050105
+
-"Time = 1.000000
--1.350000 42040804.0000000000000
--1.050000 42040104.0000000000000
--0.750000 42040204.0000000000000
--0.450000 42040304.0000000000000
--0.150000 42040404.0000000000000
-0.150000 42040504.0000000000000
-0.450000 42040604.0000000000000
-0.750000 42040704.0000000000000
-1.050000 42040804.0000000000000
-1.350000 42040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/fxy.zl b/CarpetAttic/Cart3dTest/test/periodic-y/fxy.zl
index 5266df830..b7ed6a093 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/fxy.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/fxy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy z (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 42050500
+0 0 0 0 0 5 5 1 42050501
+0 0 0 0 0 5 5 2 42050502
+0 0 0 0 0 5 5 3 42050503
+0 0 0 0 0 5 5 4 42050504
+0 0 0 0 0 5 5 5 42050505
+0 0 0 0 0 5 5 6 42050506
+0 0 0 0 0 5 5 7 42050507
+0 0 0 0 0 5 5 8 42050508
+0 0 0 0 0 5 5 9 42050509
-"Time = 0.000000
--1.350000 42040400.0000000000000
--1.050000 42040401.0000000000000
--0.750000 42040402.0000000000000
--0.450000 42040403.0000000000000
--0.150000 42040404.0000000000000
-0.150000 42040405.0000000000000
-0.450000 42040406.0000000000000
-0.750000 42040407.0000000000000
-1.050000 42040408.0000000000000
-1.350000 42040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 42050500
+1 0 0 0 0 5 5 1 42050501
+1 0 0 0 0 5 5 2 42050502
+1 0 0 0 0 5 5 3 42050503
+1 0 0 0 0 5 5 4 42050504
+1 0 0 0 0 5 5 5 42050505
+1 0 0 0 0 5 5 6 42050506
+1 0 0 0 0 5 5 7 42050507
+1 0 0 0 0 5 5 8 42050508
+1 0 0 0 0 5 5 9 42050509
+
-"Time = 1.000000
--1.350000 42040400.0000000000000
--1.050000 42040401.0000000000000
--0.750000 42040402.0000000000000
--0.450000 42040403.0000000000000
--0.150000 42040404.0000000000000
-0.150000 42040405.0000000000000
-0.450000 42040406.0000000000000
-0.750000 42040407.0000000000000
-1.050000 42040408.0000000000000
-1.350000 42040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/fxz.xl b/CarpetAttic/Cart3dTest/test/periodic-y/fxz.xl
index a51d4594d..1a33e9082 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/fxz.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/fxz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz x (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 43000505
+0 0 0 0 0 1 5 5 43010505
+0 0 0 0 0 2 5 5 43020505
+0 0 0 0 0 3 5 5 43030505
+0 0 0 0 0 4 5 5 43040505
+0 0 0 0 0 5 5 5 43050505
+0 0 0 0 0 6 5 5 43060505
+0 0 0 0 0 7 5 5 43070505
+0 0 0 0 0 8 5 5 43080505
+0 0 0 0 0 9 5 5 43090505
-"Time = 0.000000
--1.350000 43000404.0000000000000
--1.050000 43010404.0000000000000
--0.750000 43020404.0000000000000
--0.450000 43030404.0000000000000
--0.150000 43040404.0000000000000
-0.150000 43050404.0000000000000
-0.450000 43060404.0000000000000
-0.750000 43070404.0000000000000
-1.050000 43080404.0000000000000
-1.350000 43090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 43000505
+1 0 0 0 0 1 5 5 43010505
+1 0 0 0 0 2 5 5 43020505
+1 0 0 0 0 3 5 5 43030505
+1 0 0 0 0 4 5 5 43040505
+1 0 0 0 0 5 5 5 43050505
+1 0 0 0 0 6 5 5 43060505
+1 0 0 0 0 7 5 5 43070505
+1 0 0 0 0 8 5 5 43080505
+1 0 0 0 0 9 5 5 43090505
+
-"Time = 1.000000
--1.350000 43000404.0000000000000
--1.050000 43010404.0000000000000
--0.750000 43020404.0000000000000
--0.450000 43030404.0000000000000
--0.150000 43040404.0000000000000
-0.150000 43050404.0000000000000
-0.450000 43060404.0000000000000
-0.750000 43070404.0000000000000
-1.050000 43080404.0000000000000
-1.350000 43090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/fxz.yl b/CarpetAttic/Cart3dTest/test/periodic-y/fxz.yl
index a482eaba1..fb470154d 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/fxz.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/fxz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz y (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 43050005
+0 0 0 0 0 5 1 5 43050105
+0 0 0 0 0 5 2 5 43050205
+0 0 0 0 0 5 3 5 43050305
+0 0 0 0 0 5 4 5 43050405
+0 0 0 0 0 5 5 5 43050505
+0 0 0 0 0 5 6 5 43050605
+0 0 0 0 0 5 7 5 43050705
+0 0 0 0 0 5 8 5 43050805
+0 0 0 0 0 5 9 5 43050905
-"Time = 0.000000
--1.350000 43040004.0000000000000
--1.050000 43040104.0000000000000
--0.750000 43040204.0000000000000
--0.450000 43040304.0000000000000
--0.150000 43040404.0000000000000
-0.150000 43040504.0000000000000
-0.450000 43040604.0000000000000
-0.750000 43040704.0000000000000
-1.050000 43040804.0000000000000
-1.350000 43040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 43050805
+1 0 0 0 0 5 1 5 43050105
+1 0 0 0 0 5 2 5 43050205
+1 0 0 0 0 5 3 5 43050305
+1 0 0 0 0 5 4 5 43050405
+1 0 0 0 0 5 5 5 43050505
+1 0 0 0 0 5 6 5 43050605
+1 0 0 0 0 5 7 5 43050705
+1 0 0 0 0 5 8 5 43050805
+1 0 0 0 0 5 9 5 43050105
+
-"Time = 1.000000
--1.350000 43040804.0000000000000
--1.050000 43040104.0000000000000
--0.750000 43040204.0000000000000
--0.450000 43040304.0000000000000
--0.150000 43040404.0000000000000
-0.150000 43040504.0000000000000
-0.450000 43040604.0000000000000
-0.750000 43040704.0000000000000
-1.050000 43040804.0000000000000
-1.350000 43040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/fxz.zl b/CarpetAttic/Cart3dTest/test/periodic-y/fxz.zl
index d4c16c1e3..a6716651f 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/fxz.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/fxz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz z (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 43050500
+0 0 0 0 0 5 5 1 43050501
+0 0 0 0 0 5 5 2 43050502
+0 0 0 0 0 5 5 3 43050503
+0 0 0 0 0 5 5 4 43050504
+0 0 0 0 0 5 5 5 43050505
+0 0 0 0 0 5 5 6 43050506
+0 0 0 0 0 5 5 7 43050507
+0 0 0 0 0 5 5 8 43050508
+0 0 0 0 0 5 5 9 43050509
-"Time = 0.000000
--1.350000 43040400.0000000000000
--1.050000 43040401.0000000000000
--0.750000 43040402.0000000000000
--0.450000 43040403.0000000000000
--0.150000 43040404.0000000000000
-0.150000 43040405.0000000000000
-0.450000 43040406.0000000000000
-0.750000 43040407.0000000000000
-1.050000 43040408.0000000000000
-1.350000 43040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 43050500
+1 0 0 0 0 5 5 1 43050501
+1 0 0 0 0 5 5 2 43050502
+1 0 0 0 0 5 5 3 43050503
+1 0 0 0 0 5 5 4 43050504
+1 0 0 0 0 5 5 5 43050505
+1 0 0 0 0 5 5 6 43050506
+1 0 0 0 0 5 5 7 43050507
+1 0 0 0 0 5 5 8 43050508
+1 0 0 0 0 5 5 9 43050509
+
-"Time = 1.000000
--1.350000 43040400.0000000000000
--1.050000 43040401.0000000000000
--0.750000 43040402.0000000000000
--0.450000 43040403.0000000000000
--0.150000 43040404.0000000000000
-0.150000 43040405.0000000000000
-0.450000 43040406.0000000000000
-0.750000 43040407.0000000000000
-1.050000 43040408.0000000000000
-1.350000 43040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/fyx.xl b/CarpetAttic/Cart3dTest/test/periodic-y/fyx.xl
index 98b712c6d..cae9cbe2d 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/fyx.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/fyx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx x (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 44000505
+0 0 0 0 0 1 5 5 44010505
+0 0 0 0 0 2 5 5 44020505
+0 0 0 0 0 3 5 5 44030505
+0 0 0 0 0 4 5 5 44040505
+0 0 0 0 0 5 5 5 44050505
+0 0 0 0 0 6 5 5 44060505
+0 0 0 0 0 7 5 5 44070505
+0 0 0 0 0 8 5 5 44080505
+0 0 0 0 0 9 5 5 44090505
-"Time = 0.000000
--1.350000 44000404.0000000000000
--1.050000 44010404.0000000000000
--0.750000 44020404.0000000000000
--0.450000 44030404.0000000000000
--0.150000 44040404.0000000000000
-0.150000 44050404.0000000000000
-0.450000 44060404.0000000000000
-0.750000 44070404.0000000000000
-1.050000 44080404.0000000000000
-1.350000 44090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 44000505
+1 0 0 0 0 1 5 5 44010505
+1 0 0 0 0 2 5 5 44020505
+1 0 0 0 0 3 5 5 44030505
+1 0 0 0 0 4 5 5 44040505
+1 0 0 0 0 5 5 5 44050505
+1 0 0 0 0 6 5 5 44060505
+1 0 0 0 0 7 5 5 44070505
+1 0 0 0 0 8 5 5 44080505
+1 0 0 0 0 9 5 5 44090505
+
-"Time = 1.000000
--1.350000 44000404.0000000000000
--1.050000 44010404.0000000000000
--0.750000 44020404.0000000000000
--0.450000 44030404.0000000000000
--0.150000 44040404.0000000000000
-0.150000 44050404.0000000000000
-0.450000 44060404.0000000000000
-0.750000 44070404.0000000000000
-1.050000 44080404.0000000000000
-1.350000 44090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/fyx.yl b/CarpetAttic/Cart3dTest/test/periodic-y/fyx.yl
index fcb244bb3..30724e461 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/fyx.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/fyx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx y (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 44050005
+0 0 0 0 0 5 1 5 44050105
+0 0 0 0 0 5 2 5 44050205
+0 0 0 0 0 5 3 5 44050305
+0 0 0 0 0 5 4 5 44050405
+0 0 0 0 0 5 5 5 44050505
+0 0 0 0 0 5 6 5 44050605
+0 0 0 0 0 5 7 5 44050705
+0 0 0 0 0 5 8 5 44050805
+0 0 0 0 0 5 9 5 44050905
-"Time = 0.000000
--1.350000 44040004.0000000000000
--1.050000 44040104.0000000000000
--0.750000 44040204.0000000000000
--0.450000 44040304.0000000000000
--0.150000 44040404.0000000000000
-0.150000 44040504.0000000000000
-0.450000 44040604.0000000000000
-0.750000 44040704.0000000000000
-1.050000 44040804.0000000000000
-1.350000 44040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 44050805
+1 0 0 0 0 5 1 5 44050105
+1 0 0 0 0 5 2 5 44050205
+1 0 0 0 0 5 3 5 44050305
+1 0 0 0 0 5 4 5 44050405
+1 0 0 0 0 5 5 5 44050505
+1 0 0 0 0 5 6 5 44050605
+1 0 0 0 0 5 7 5 44050705
+1 0 0 0 0 5 8 5 44050805
+1 0 0 0 0 5 9 5 44050105
+
-"Time = 1.000000
--1.350000 44040804.0000000000000
--1.050000 44040104.0000000000000
--0.750000 44040204.0000000000000
--0.450000 44040304.0000000000000
--0.150000 44040404.0000000000000
-0.150000 44040504.0000000000000
-0.450000 44040604.0000000000000
-0.750000 44040704.0000000000000
-1.050000 44040804.0000000000000
-1.350000 44040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/fyx.zl b/CarpetAttic/Cart3dTest/test/periodic-y/fyx.zl
index 2e7ff54fe..6ee8b911f 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/fyx.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/fyx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx z (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 44050500
+0 0 0 0 0 5 5 1 44050501
+0 0 0 0 0 5 5 2 44050502
+0 0 0 0 0 5 5 3 44050503
+0 0 0 0 0 5 5 4 44050504
+0 0 0 0 0 5 5 5 44050505
+0 0 0 0 0 5 5 6 44050506
+0 0 0 0 0 5 5 7 44050507
+0 0 0 0 0 5 5 8 44050508
+0 0 0 0 0 5 5 9 44050509
-"Time = 0.000000
--1.350000 44040400.0000000000000
--1.050000 44040401.0000000000000
--0.750000 44040402.0000000000000
--0.450000 44040403.0000000000000
--0.150000 44040404.0000000000000
-0.150000 44040405.0000000000000
-0.450000 44040406.0000000000000
-0.750000 44040407.0000000000000
-1.050000 44040408.0000000000000
-1.350000 44040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 44050500
+1 0 0 0 0 5 5 1 44050501
+1 0 0 0 0 5 5 2 44050502
+1 0 0 0 0 5 5 3 44050503
+1 0 0 0 0 5 5 4 44050504
+1 0 0 0 0 5 5 5 44050505
+1 0 0 0 0 5 5 6 44050506
+1 0 0 0 0 5 5 7 44050507
+1 0 0 0 0 5 5 8 44050508
+1 0 0 0 0 5 5 9 44050509
+
-"Time = 1.000000
--1.350000 44040400.0000000000000
--1.050000 44040401.0000000000000
--0.750000 44040402.0000000000000
--0.450000 44040403.0000000000000
--0.150000 44040404.0000000000000
-0.150000 44040405.0000000000000
-0.450000 44040406.0000000000000
-0.750000 44040407.0000000000000
-1.050000 44040408.0000000000000
-1.350000 44040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/fyy.xl b/CarpetAttic/Cart3dTest/test/periodic-y/fyy.xl
index dece88fbc..5008c5b15 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/fyy.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/fyy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy x (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 45000505
+0 0 0 0 0 1 5 5 45010505
+0 0 0 0 0 2 5 5 45020505
+0 0 0 0 0 3 5 5 45030505
+0 0 0 0 0 4 5 5 45040505
+0 0 0 0 0 5 5 5 45050505
+0 0 0 0 0 6 5 5 45060505
+0 0 0 0 0 7 5 5 45070505
+0 0 0 0 0 8 5 5 45080505
+0 0 0 0 0 9 5 5 45090505
-"Time = 0.000000
--1.350000 45000404.0000000000000
--1.050000 45010404.0000000000000
--0.750000 45020404.0000000000000
--0.450000 45030404.0000000000000
--0.150000 45040404.0000000000000
-0.150000 45050404.0000000000000
-0.450000 45060404.0000000000000
-0.750000 45070404.0000000000000
-1.050000 45080404.0000000000000
-1.350000 45090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 45000505
+1 0 0 0 0 1 5 5 45010505
+1 0 0 0 0 2 5 5 45020505
+1 0 0 0 0 3 5 5 45030505
+1 0 0 0 0 4 5 5 45040505
+1 0 0 0 0 5 5 5 45050505
+1 0 0 0 0 6 5 5 45060505
+1 0 0 0 0 7 5 5 45070505
+1 0 0 0 0 8 5 5 45080505
+1 0 0 0 0 9 5 5 45090505
+
-"Time = 1.000000
--1.350000 45000404.0000000000000
--1.050000 45010404.0000000000000
--0.750000 45020404.0000000000000
--0.450000 45030404.0000000000000
--0.150000 45040404.0000000000000
-0.150000 45050404.0000000000000
-0.450000 45060404.0000000000000
-0.750000 45070404.0000000000000
-1.050000 45080404.0000000000000
-1.350000 45090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/fyy.yl b/CarpetAttic/Cart3dTest/test/periodic-y/fyy.yl
index 35fcd6d09..e97298ab8 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/fyy.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/fyy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy y (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 45050005
+0 0 0 0 0 5 1 5 45050105
+0 0 0 0 0 5 2 5 45050205
+0 0 0 0 0 5 3 5 45050305
+0 0 0 0 0 5 4 5 45050405
+0 0 0 0 0 5 5 5 45050505
+0 0 0 0 0 5 6 5 45050605
+0 0 0 0 0 5 7 5 45050705
+0 0 0 0 0 5 8 5 45050805
+0 0 0 0 0 5 9 5 45050905
-"Time = 0.000000
--1.350000 45040004.0000000000000
--1.050000 45040104.0000000000000
--0.750000 45040204.0000000000000
--0.450000 45040304.0000000000000
--0.150000 45040404.0000000000000
-0.150000 45040504.0000000000000
-0.450000 45040604.0000000000000
-0.750000 45040704.0000000000000
-1.050000 45040804.0000000000000
-1.350000 45040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 45050805
+1 0 0 0 0 5 1 5 45050105
+1 0 0 0 0 5 2 5 45050205
+1 0 0 0 0 5 3 5 45050305
+1 0 0 0 0 5 4 5 45050405
+1 0 0 0 0 5 5 5 45050505
+1 0 0 0 0 5 6 5 45050605
+1 0 0 0 0 5 7 5 45050705
+1 0 0 0 0 5 8 5 45050805
+1 0 0 0 0 5 9 5 45050105
+
-"Time = 1.000000
--1.350000 45040804.0000000000000
--1.050000 45040104.0000000000000
--0.750000 45040204.0000000000000
--0.450000 45040304.0000000000000
--0.150000 45040404.0000000000000
-0.150000 45040504.0000000000000
-0.450000 45040604.0000000000000
-0.750000 45040704.0000000000000
-1.050000 45040804.0000000000000
-1.350000 45040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/fyy.zl b/CarpetAttic/Cart3dTest/test/periodic-y/fyy.zl
index def96c2e1..864474fbb 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/fyy.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/fyy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy z (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 45050500
+0 0 0 0 0 5 5 1 45050501
+0 0 0 0 0 5 5 2 45050502
+0 0 0 0 0 5 5 3 45050503
+0 0 0 0 0 5 5 4 45050504
+0 0 0 0 0 5 5 5 45050505
+0 0 0 0 0 5 5 6 45050506
+0 0 0 0 0 5 5 7 45050507
+0 0 0 0 0 5 5 8 45050508
+0 0 0 0 0 5 5 9 45050509
-"Time = 0.000000
--1.350000 45040400.0000000000000
--1.050000 45040401.0000000000000
--0.750000 45040402.0000000000000
--0.450000 45040403.0000000000000
--0.150000 45040404.0000000000000
-0.150000 45040405.0000000000000
-0.450000 45040406.0000000000000
-0.750000 45040407.0000000000000
-1.050000 45040408.0000000000000
-1.350000 45040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 45050500
+1 0 0 0 0 5 5 1 45050501
+1 0 0 0 0 5 5 2 45050502
+1 0 0 0 0 5 5 3 45050503
+1 0 0 0 0 5 5 4 45050504
+1 0 0 0 0 5 5 5 45050505
+1 0 0 0 0 5 5 6 45050506
+1 0 0 0 0 5 5 7 45050507
+1 0 0 0 0 5 5 8 45050508
+1 0 0 0 0 5 5 9 45050509
+
-"Time = 1.000000
--1.350000 45040400.0000000000000
--1.050000 45040401.0000000000000
--0.750000 45040402.0000000000000
--0.450000 45040403.0000000000000
--0.150000 45040404.0000000000000
-0.150000 45040405.0000000000000
-0.450000 45040406.0000000000000
-0.750000 45040407.0000000000000
-1.050000 45040408.0000000000000
-1.350000 45040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/fyz.xl b/CarpetAttic/Cart3dTest/test/periodic-y/fyz.xl
index cfcac0c16..d98ca2a15 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/fyz.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/fyz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz x (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 46000505
+0 0 0 0 0 1 5 5 46010505
+0 0 0 0 0 2 5 5 46020505
+0 0 0 0 0 3 5 5 46030505
+0 0 0 0 0 4 5 5 46040505
+0 0 0 0 0 5 5 5 46050505
+0 0 0 0 0 6 5 5 46060505
+0 0 0 0 0 7 5 5 46070505
+0 0 0 0 0 8 5 5 46080505
+0 0 0 0 0 9 5 5 46090505
-"Time = 0.000000
--1.350000 46000404.0000000000000
--1.050000 46010404.0000000000000
--0.750000 46020404.0000000000000
--0.450000 46030404.0000000000000
--0.150000 46040404.0000000000000
-0.150000 46050404.0000000000000
-0.450000 46060404.0000000000000
-0.750000 46070404.0000000000000
-1.050000 46080404.0000000000000
-1.350000 46090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 46000505
+1 0 0 0 0 1 5 5 46010505
+1 0 0 0 0 2 5 5 46020505
+1 0 0 0 0 3 5 5 46030505
+1 0 0 0 0 4 5 5 46040505
+1 0 0 0 0 5 5 5 46050505
+1 0 0 0 0 6 5 5 46060505
+1 0 0 0 0 7 5 5 46070505
+1 0 0 0 0 8 5 5 46080505
+1 0 0 0 0 9 5 5 46090505
+
-"Time = 1.000000
--1.350000 46000404.0000000000000
--1.050000 46010404.0000000000000
--0.750000 46020404.0000000000000
--0.450000 46030404.0000000000000
--0.150000 46040404.0000000000000
-0.150000 46050404.0000000000000
-0.450000 46060404.0000000000000
-0.750000 46070404.0000000000000
-1.050000 46080404.0000000000000
-1.350000 46090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/fyz.yl b/CarpetAttic/Cart3dTest/test/periodic-y/fyz.yl
index ca8e7c37d..02982ec37 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/fyz.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/fyz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz y (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 46050005
+0 0 0 0 0 5 1 5 46050105
+0 0 0 0 0 5 2 5 46050205
+0 0 0 0 0 5 3 5 46050305
+0 0 0 0 0 5 4 5 46050405
+0 0 0 0 0 5 5 5 46050505
+0 0 0 0 0 5 6 5 46050605
+0 0 0 0 0 5 7 5 46050705
+0 0 0 0 0 5 8 5 46050805
+0 0 0 0 0 5 9 5 46050905
-"Time = 0.000000
--1.350000 46040004.0000000000000
--1.050000 46040104.0000000000000
--0.750000 46040204.0000000000000
--0.450000 46040304.0000000000000
--0.150000 46040404.0000000000000
-0.150000 46040504.0000000000000
-0.450000 46040604.0000000000000
-0.750000 46040704.0000000000000
-1.050000 46040804.0000000000000
-1.350000 46040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 46050805
+1 0 0 0 0 5 1 5 46050105
+1 0 0 0 0 5 2 5 46050205
+1 0 0 0 0 5 3 5 46050305
+1 0 0 0 0 5 4 5 46050405
+1 0 0 0 0 5 5 5 46050505
+1 0 0 0 0 5 6 5 46050605
+1 0 0 0 0 5 7 5 46050705
+1 0 0 0 0 5 8 5 46050805
+1 0 0 0 0 5 9 5 46050105
+
-"Time = 1.000000
--1.350000 46040804.0000000000000
--1.050000 46040104.0000000000000
--0.750000 46040204.0000000000000
--0.450000 46040304.0000000000000
--0.150000 46040404.0000000000000
-0.150000 46040504.0000000000000
-0.450000 46040604.0000000000000
-0.750000 46040704.0000000000000
-1.050000 46040804.0000000000000
-1.350000 46040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/fyz.zl b/CarpetAttic/Cart3dTest/test/periodic-y/fyz.zl
index 031a29c13..ac2902605 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/fyz.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/fyz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz z (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 46050500
+0 0 0 0 0 5 5 1 46050501
+0 0 0 0 0 5 5 2 46050502
+0 0 0 0 0 5 5 3 46050503
+0 0 0 0 0 5 5 4 46050504
+0 0 0 0 0 5 5 5 46050505
+0 0 0 0 0 5 5 6 46050506
+0 0 0 0 0 5 5 7 46050507
+0 0 0 0 0 5 5 8 46050508
+0 0 0 0 0 5 5 9 46050509
-"Time = 0.000000
--1.350000 46040400.0000000000000
--1.050000 46040401.0000000000000
--0.750000 46040402.0000000000000
--0.450000 46040403.0000000000000
--0.150000 46040404.0000000000000
-0.150000 46040405.0000000000000
-0.450000 46040406.0000000000000
-0.750000 46040407.0000000000000
-1.050000 46040408.0000000000000
-1.350000 46040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 46050500
+1 0 0 0 0 5 5 1 46050501
+1 0 0 0 0 5 5 2 46050502
+1 0 0 0 0 5 5 3 46050503
+1 0 0 0 0 5 5 4 46050504
+1 0 0 0 0 5 5 5 46050505
+1 0 0 0 0 5 5 6 46050506
+1 0 0 0 0 5 5 7 46050507
+1 0 0 0 0 5 5 8 46050508
+1 0 0 0 0 5 5 9 46050509
+
-"Time = 1.000000
--1.350000 46040400.0000000000000
--1.050000 46040401.0000000000000
--0.750000 46040402.0000000000000
--0.450000 46040403.0000000000000
--0.150000 46040404.0000000000000
-0.150000 46040405.0000000000000
-0.450000 46040406.0000000000000
-0.750000 46040407.0000000000000
-1.050000 46040408.0000000000000
-1.350000 46040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/fzx.xl b/CarpetAttic/Cart3dTest/test/periodic-y/fzx.xl
index 58a73c86e..b13ff1471 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/fzx.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/fzx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx x (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 47000505
+0 0 0 0 0 1 5 5 47010505
+0 0 0 0 0 2 5 5 47020505
+0 0 0 0 0 3 5 5 47030505
+0 0 0 0 0 4 5 5 47040505
+0 0 0 0 0 5 5 5 47050505
+0 0 0 0 0 6 5 5 47060505
+0 0 0 0 0 7 5 5 47070505
+0 0 0 0 0 8 5 5 47080505
+0 0 0 0 0 9 5 5 47090505
-"Time = 0.000000
--1.350000 47000404.0000000000000
--1.050000 47010404.0000000000000
--0.750000 47020404.0000000000000
--0.450000 47030404.0000000000000
--0.150000 47040404.0000000000000
-0.150000 47050404.0000000000000
-0.450000 47060404.0000000000000
-0.750000 47070404.0000000000000
-1.050000 47080404.0000000000000
-1.350000 47090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 47000505
+1 0 0 0 0 1 5 5 47010505
+1 0 0 0 0 2 5 5 47020505
+1 0 0 0 0 3 5 5 47030505
+1 0 0 0 0 4 5 5 47040505
+1 0 0 0 0 5 5 5 47050505
+1 0 0 0 0 6 5 5 47060505
+1 0 0 0 0 7 5 5 47070505
+1 0 0 0 0 8 5 5 47080505
+1 0 0 0 0 9 5 5 47090505
+
-"Time = 1.000000
--1.350000 47000404.0000000000000
--1.050000 47010404.0000000000000
--0.750000 47020404.0000000000000
--0.450000 47030404.0000000000000
--0.150000 47040404.0000000000000
-0.150000 47050404.0000000000000
-0.450000 47060404.0000000000000
-0.750000 47070404.0000000000000
-1.050000 47080404.0000000000000
-1.350000 47090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/fzx.yl b/CarpetAttic/Cart3dTest/test/periodic-y/fzx.yl
index d6d6f452d..a65e0d332 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/fzx.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/fzx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx y (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 47050005
+0 0 0 0 0 5 1 5 47050105
+0 0 0 0 0 5 2 5 47050205
+0 0 0 0 0 5 3 5 47050305
+0 0 0 0 0 5 4 5 47050405
+0 0 0 0 0 5 5 5 47050505
+0 0 0 0 0 5 6 5 47050605
+0 0 0 0 0 5 7 5 47050705
+0 0 0 0 0 5 8 5 47050805
+0 0 0 0 0 5 9 5 47050905
-"Time = 0.000000
--1.350000 47040004.0000000000000
--1.050000 47040104.0000000000000
--0.750000 47040204.0000000000000
--0.450000 47040304.0000000000000
--0.150000 47040404.0000000000000
-0.150000 47040504.0000000000000
-0.450000 47040604.0000000000000
-0.750000 47040704.0000000000000
-1.050000 47040804.0000000000000
-1.350000 47040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 47050805
+1 0 0 0 0 5 1 5 47050105
+1 0 0 0 0 5 2 5 47050205
+1 0 0 0 0 5 3 5 47050305
+1 0 0 0 0 5 4 5 47050405
+1 0 0 0 0 5 5 5 47050505
+1 0 0 0 0 5 6 5 47050605
+1 0 0 0 0 5 7 5 47050705
+1 0 0 0 0 5 8 5 47050805
+1 0 0 0 0 5 9 5 47050105
+
-"Time = 1.000000
--1.350000 47040804.0000000000000
--1.050000 47040104.0000000000000
--0.750000 47040204.0000000000000
--0.450000 47040304.0000000000000
--0.150000 47040404.0000000000000
-0.150000 47040504.0000000000000
-0.450000 47040604.0000000000000
-0.750000 47040704.0000000000000
-1.050000 47040804.0000000000000
-1.350000 47040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/fzx.zl b/CarpetAttic/Cart3dTest/test/periodic-y/fzx.zl
index 0f880c9b8..bf3324e04 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/fzx.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/fzx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx z (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 47050500
+0 0 0 0 0 5 5 1 47050501
+0 0 0 0 0 5 5 2 47050502
+0 0 0 0 0 5 5 3 47050503
+0 0 0 0 0 5 5 4 47050504
+0 0 0 0 0 5 5 5 47050505
+0 0 0 0 0 5 5 6 47050506
+0 0 0 0 0 5 5 7 47050507
+0 0 0 0 0 5 5 8 47050508
+0 0 0 0 0 5 5 9 47050509
-"Time = 0.000000
--1.350000 47040400.0000000000000
--1.050000 47040401.0000000000000
--0.750000 47040402.0000000000000
--0.450000 47040403.0000000000000
--0.150000 47040404.0000000000000
-0.150000 47040405.0000000000000
-0.450000 47040406.0000000000000
-0.750000 47040407.0000000000000
-1.050000 47040408.0000000000000
-1.350000 47040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 47050500
+1 0 0 0 0 5 5 1 47050501
+1 0 0 0 0 5 5 2 47050502
+1 0 0 0 0 5 5 3 47050503
+1 0 0 0 0 5 5 4 47050504
+1 0 0 0 0 5 5 5 47050505
+1 0 0 0 0 5 5 6 47050506
+1 0 0 0 0 5 5 7 47050507
+1 0 0 0 0 5 5 8 47050508
+1 0 0 0 0 5 5 9 47050509
+
-"Time = 1.000000
--1.350000 47040400.0000000000000
--1.050000 47040401.0000000000000
--0.750000 47040402.0000000000000
--0.450000 47040403.0000000000000
--0.150000 47040404.0000000000000
-0.150000 47040405.0000000000000
-0.450000 47040406.0000000000000
-0.750000 47040407.0000000000000
-1.050000 47040408.0000000000000
-1.350000 47040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/fzy.xl b/CarpetAttic/Cart3dTest/test/periodic-y/fzy.xl
index 24e570127..d8b2ffa66 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/fzy.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/fzy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy x (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 48000505
+0 0 0 0 0 1 5 5 48010505
+0 0 0 0 0 2 5 5 48020505
+0 0 0 0 0 3 5 5 48030505
+0 0 0 0 0 4 5 5 48040505
+0 0 0 0 0 5 5 5 48050505
+0 0 0 0 0 6 5 5 48060505
+0 0 0 0 0 7 5 5 48070505
+0 0 0 0 0 8 5 5 48080505
+0 0 0 0 0 9 5 5 48090505
-"Time = 0.000000
--1.350000 48000404.0000000000000
--1.050000 48010404.0000000000000
--0.750000 48020404.0000000000000
--0.450000 48030404.0000000000000
--0.150000 48040404.0000000000000
-0.150000 48050404.0000000000000
-0.450000 48060404.0000000000000
-0.750000 48070404.0000000000000
-1.050000 48080404.0000000000000
-1.350000 48090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 48000505
+1 0 0 0 0 1 5 5 48010505
+1 0 0 0 0 2 5 5 48020505
+1 0 0 0 0 3 5 5 48030505
+1 0 0 0 0 4 5 5 48040505
+1 0 0 0 0 5 5 5 48050505
+1 0 0 0 0 6 5 5 48060505
+1 0 0 0 0 7 5 5 48070505
+1 0 0 0 0 8 5 5 48080505
+1 0 0 0 0 9 5 5 48090505
+
-"Time = 1.000000
--1.350000 48000404.0000000000000
--1.050000 48010404.0000000000000
--0.750000 48020404.0000000000000
--0.450000 48030404.0000000000000
--0.150000 48040404.0000000000000
-0.150000 48050404.0000000000000
-0.450000 48060404.0000000000000
-0.750000 48070404.0000000000000
-1.050000 48080404.0000000000000
-1.350000 48090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/fzy.yl b/CarpetAttic/Cart3dTest/test/periodic-y/fzy.yl
index cd3c9441d..9f3b6a100 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/fzy.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/fzy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy y (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 48050005
+0 0 0 0 0 5 1 5 48050105
+0 0 0 0 0 5 2 5 48050205
+0 0 0 0 0 5 3 5 48050305
+0 0 0 0 0 5 4 5 48050405
+0 0 0 0 0 5 5 5 48050505
+0 0 0 0 0 5 6 5 48050605
+0 0 0 0 0 5 7 5 48050705
+0 0 0 0 0 5 8 5 48050805
+0 0 0 0 0 5 9 5 48050905
-"Time = 0.000000
--1.350000 48040004.0000000000000
--1.050000 48040104.0000000000000
--0.750000 48040204.0000000000000
--0.450000 48040304.0000000000000
--0.150000 48040404.0000000000000
-0.150000 48040504.0000000000000
-0.450000 48040604.0000000000000
-0.750000 48040704.0000000000000
-1.050000 48040804.0000000000000
-1.350000 48040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 48050805
+1 0 0 0 0 5 1 5 48050105
+1 0 0 0 0 5 2 5 48050205
+1 0 0 0 0 5 3 5 48050305
+1 0 0 0 0 5 4 5 48050405
+1 0 0 0 0 5 5 5 48050505
+1 0 0 0 0 5 6 5 48050605
+1 0 0 0 0 5 7 5 48050705
+1 0 0 0 0 5 8 5 48050805
+1 0 0 0 0 5 9 5 48050105
+
-"Time = 1.000000
--1.350000 48040804.0000000000000
--1.050000 48040104.0000000000000
--0.750000 48040204.0000000000000
--0.450000 48040304.0000000000000
--0.150000 48040404.0000000000000
-0.150000 48040504.0000000000000
-0.450000 48040604.0000000000000
-0.750000 48040704.0000000000000
-1.050000 48040804.0000000000000
-1.350000 48040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/fzy.zl b/CarpetAttic/Cart3dTest/test/periodic-y/fzy.zl
index 382ea546f..f624242dc 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/fzy.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/fzy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy z (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 48050500
+0 0 0 0 0 5 5 1 48050501
+0 0 0 0 0 5 5 2 48050502
+0 0 0 0 0 5 5 3 48050503
+0 0 0 0 0 5 5 4 48050504
+0 0 0 0 0 5 5 5 48050505
+0 0 0 0 0 5 5 6 48050506
+0 0 0 0 0 5 5 7 48050507
+0 0 0 0 0 5 5 8 48050508
+0 0 0 0 0 5 5 9 48050509
-"Time = 0.000000
--1.350000 48040400.0000000000000
--1.050000 48040401.0000000000000
--0.750000 48040402.0000000000000
--0.450000 48040403.0000000000000
--0.150000 48040404.0000000000000
-0.150000 48040405.0000000000000
-0.450000 48040406.0000000000000
-0.750000 48040407.0000000000000
-1.050000 48040408.0000000000000
-1.350000 48040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 48050500
+1 0 0 0 0 5 5 1 48050501
+1 0 0 0 0 5 5 2 48050502
+1 0 0 0 0 5 5 3 48050503
+1 0 0 0 0 5 5 4 48050504
+1 0 0 0 0 5 5 5 48050505
+1 0 0 0 0 5 5 6 48050506
+1 0 0 0 0 5 5 7 48050507
+1 0 0 0 0 5 5 8 48050508
+1 0 0 0 0 5 5 9 48050509
+
-"Time = 1.000000
--1.350000 48040400.0000000000000
--1.050000 48040401.0000000000000
--0.750000 48040402.0000000000000
--0.450000 48040403.0000000000000
--0.150000 48040404.0000000000000
-0.150000 48040405.0000000000000
-0.450000 48040406.0000000000000
-0.750000 48040407.0000000000000
-1.050000 48040408.0000000000000
-1.350000 48040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/fzz.xl b/CarpetAttic/Cart3dTest/test/periodic-y/fzz.xl
index 8d275bbc1..9c8f5cbf0 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/fzz.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/fzz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz x (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 49000505
+0 0 0 0 0 1 5 5 49010505
+0 0 0 0 0 2 5 5 49020505
+0 0 0 0 0 3 5 5 49030505
+0 0 0 0 0 4 5 5 49040505
+0 0 0 0 0 5 5 5 49050505
+0 0 0 0 0 6 5 5 49060505
+0 0 0 0 0 7 5 5 49070505
+0 0 0 0 0 8 5 5 49080505
+0 0 0 0 0 9 5 5 49090505
-"Time = 0.000000
--1.350000 49000404.0000000000000
--1.050000 49010404.0000000000000
--0.750000 49020404.0000000000000
--0.450000 49030404.0000000000000
--0.150000 49040404.0000000000000
-0.150000 49050404.0000000000000
-0.450000 49060404.0000000000000
-0.750000 49070404.0000000000000
-1.050000 49080404.0000000000000
-1.350000 49090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 49000505
+1 0 0 0 0 1 5 5 49010505
+1 0 0 0 0 2 5 5 49020505
+1 0 0 0 0 3 5 5 49030505
+1 0 0 0 0 4 5 5 49040505
+1 0 0 0 0 5 5 5 49050505
+1 0 0 0 0 6 5 5 49060505
+1 0 0 0 0 7 5 5 49070505
+1 0 0 0 0 8 5 5 49080505
+1 0 0 0 0 9 5 5 49090505
+
-"Time = 1.000000
--1.350000 49000404.0000000000000
--1.050000 49010404.0000000000000
--0.750000 49020404.0000000000000
--0.450000 49030404.0000000000000
--0.150000 49040404.0000000000000
-0.150000 49050404.0000000000000
-0.450000 49060404.0000000000000
-0.750000 49070404.0000000000000
-1.050000 49080404.0000000000000
-1.350000 49090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/fzz.yl b/CarpetAttic/Cart3dTest/test/periodic-y/fzz.yl
index a10912a44..5ad50d331 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/fzz.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/fzz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz y (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 49050005
+0 0 0 0 0 5 1 5 49050105
+0 0 0 0 0 5 2 5 49050205
+0 0 0 0 0 5 3 5 49050305
+0 0 0 0 0 5 4 5 49050405
+0 0 0 0 0 5 5 5 49050505
+0 0 0 0 0 5 6 5 49050605
+0 0 0 0 0 5 7 5 49050705
+0 0 0 0 0 5 8 5 49050805
+0 0 0 0 0 5 9 5 49050905
-"Time = 0.000000
--1.350000 49040004.0000000000000
--1.050000 49040104.0000000000000
--0.750000 49040204.0000000000000
--0.450000 49040304.0000000000000
--0.150000 49040404.0000000000000
-0.150000 49040504.0000000000000
-0.450000 49040604.0000000000000
-0.750000 49040704.0000000000000
-1.050000 49040804.0000000000000
-1.350000 49040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 49050805
+1 0 0 0 0 5 1 5 49050105
+1 0 0 0 0 5 2 5 49050205
+1 0 0 0 0 5 3 5 49050305
+1 0 0 0 0 5 4 5 49050405
+1 0 0 0 0 5 5 5 49050505
+1 0 0 0 0 5 6 5 49050605
+1 0 0 0 0 5 7 5 49050705
+1 0 0 0 0 5 8 5 49050805
+1 0 0 0 0 5 9 5 49050105
+
-"Time = 1.000000
--1.350000 49040804.0000000000000
--1.050000 49040104.0000000000000
--0.750000 49040204.0000000000000
--0.450000 49040304.0000000000000
--0.150000 49040404.0000000000000
-0.150000 49040504.0000000000000
-0.450000 49040604.0000000000000
-0.750000 49040704.0000000000000
-1.050000 49040804.0000000000000
-1.350000 49040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/fzz.zl b/CarpetAttic/Cart3dTest/test/periodic-y/fzz.zl
index c28fa9215..364c0d582 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/fzz.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/fzz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz z (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 49050500
+0 0 0 0 0 5 5 1 49050501
+0 0 0 0 0 5 5 2 49050502
+0 0 0 0 0 5 5 3 49050503
+0 0 0 0 0 5 5 4 49050504
+0 0 0 0 0 5 5 5 49050505
+0 0 0 0 0 5 5 6 49050506
+0 0 0 0 0 5 5 7 49050507
+0 0 0 0 0 5 5 8 49050508
+0 0 0 0 0 5 5 9 49050509
-"Time = 0.000000
--1.350000 49040400.0000000000000
--1.050000 49040401.0000000000000
--0.750000 49040402.0000000000000
--0.450000 49040403.0000000000000
--0.150000 49040404.0000000000000
-0.150000 49040405.0000000000000
-0.450000 49040406.0000000000000
-0.750000 49040407.0000000000000
-1.050000 49040408.0000000000000
-1.350000 49040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 49050500
+1 0 0 0 0 5 5 1 49050501
+1 0 0 0 0 5 5 2 49050502
+1 0 0 0 0 5 5 3 49050503
+1 0 0 0 0 5 5 4 49050504
+1 0 0 0 0 5 5 5 49050505
+1 0 0 0 0 5 5 6 49050506
+1 0 0 0 0 5 5 7 49050507
+1 0 0 0 0 5 5 8 49050508
+1 0 0 0 0 5 5 9 49050509
+
-"Time = 1.000000
--1.350000 49040400.0000000000000
--1.050000 49040401.0000000000000
--0.750000 49040402.0000000000000
--0.450000 49040403.0000000000000
--0.150000 49040404.0000000000000
-0.150000 49040405.0000000000000
-0.450000 49040406.0000000000000
-0.750000 49040407.0000000000000
-1.050000 49040408.0000000000000
-1.350000 49040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/s.xl b/CarpetAttic/Cart3dTest/test/periodic-y/s.xl
index 043028545..14e43aa3e 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/s.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/s.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::s x (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 1000505
+0 0 0 0 0 1 5 5 1010505
+0 0 0 0 0 2 5 5 1020505
+0 0 0 0 0 3 5 5 1030505
+0 0 0 0 0 4 5 5 1040505
+0 0 0 0 0 5 5 5 1050505
+0 0 0 0 0 6 5 5 1060505
+0 0 0 0 0 7 5 5 1070505
+0 0 0 0 0 8 5 5 1080505
+0 0 0 0 0 9 5 5 1090505
-"Time = 0.000000
--1.350000 1000404.0000000000000
--1.050000 1010404.0000000000000
--0.750000 1020404.0000000000000
--0.450000 1030404.0000000000000
--0.150000 1040404.0000000000000
-0.150000 1050404.0000000000000
-0.450000 1060404.0000000000000
-0.750000 1070404.0000000000000
-1.050000 1080404.0000000000000
-1.350000 1090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 1000505
+1 0 0 0 0 1 5 5 1010505
+1 0 0 0 0 2 5 5 1020505
+1 0 0 0 0 3 5 5 1030505
+1 0 0 0 0 4 5 5 1040505
+1 0 0 0 0 5 5 5 1050505
+1 0 0 0 0 6 5 5 1060505
+1 0 0 0 0 7 5 5 1070505
+1 0 0 0 0 8 5 5 1080505
+1 0 0 0 0 9 5 5 1090505
+
-"Time = 1.000000
--1.350000 1000404.0000000000000
--1.050000 1010404.0000000000000
--0.750000 1020404.0000000000000
--0.450000 1030404.0000000000000
--0.150000 1040404.0000000000000
-0.150000 1050404.0000000000000
-0.450000 1060404.0000000000000
-0.750000 1070404.0000000000000
-1.050000 1080404.0000000000000
-1.350000 1090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/s.yl b/CarpetAttic/Cart3dTest/test/periodic-y/s.yl
index e4a37535a..d06a6df59 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/s.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/s.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::s y (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 1050005
+0 0 0 0 0 5 1 5 1050105
+0 0 0 0 0 5 2 5 1050205
+0 0 0 0 0 5 3 5 1050305
+0 0 0 0 0 5 4 5 1050405
+0 0 0 0 0 5 5 5 1050505
+0 0 0 0 0 5 6 5 1050605
+0 0 0 0 0 5 7 5 1050705
+0 0 0 0 0 5 8 5 1050805
+0 0 0 0 0 5 9 5 1050905
-"Time = 0.000000
--1.350000 1040004.0000000000000
--1.050000 1040104.0000000000000
--0.750000 1040204.0000000000000
--0.450000 1040304.0000000000000
--0.150000 1040404.0000000000000
-0.150000 1040504.0000000000000
-0.450000 1040604.0000000000000
-0.750000 1040704.0000000000000
-1.050000 1040804.0000000000000
-1.350000 1040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 1050805
+1 0 0 0 0 5 1 5 1050105
+1 0 0 0 0 5 2 5 1050205
+1 0 0 0 0 5 3 5 1050305
+1 0 0 0 0 5 4 5 1050405
+1 0 0 0 0 5 5 5 1050505
+1 0 0 0 0 5 6 5 1050605
+1 0 0 0 0 5 7 5 1050705
+1 0 0 0 0 5 8 5 1050805
+1 0 0 0 0 5 9 5 1050105
+
-"Time = 1.000000
--1.350000 1040804.0000000000000
--1.050000 1040104.0000000000000
--0.750000 1040204.0000000000000
--0.450000 1040304.0000000000000
--0.150000 1040404.0000000000000
-0.150000 1040504.0000000000000
-0.450000 1040604.0000000000000
-0.750000 1040704.0000000000000
-1.050000 1040804.0000000000000
-1.350000 1040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/s.zl b/CarpetAttic/Cart3dTest/test/periodic-y/s.zl
index 3c05d5e50..45ce1cd7b 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/s.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/s.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::s z (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 1050500
+0 0 0 0 0 5 5 1 1050501
+0 0 0 0 0 5 5 2 1050502
+0 0 0 0 0 5 5 3 1050503
+0 0 0 0 0 5 5 4 1050504
+0 0 0 0 0 5 5 5 1050505
+0 0 0 0 0 5 5 6 1050506
+0 0 0 0 0 5 5 7 1050507
+0 0 0 0 0 5 5 8 1050508
+0 0 0 0 0 5 5 9 1050509
-"Time = 0.000000
--1.350000 1040400.0000000000000
--1.050000 1040401.0000000000000
--0.750000 1040402.0000000000000
--0.450000 1040403.0000000000000
--0.150000 1040404.0000000000000
-0.150000 1040405.0000000000000
-0.450000 1040406.0000000000000
-0.750000 1040407.0000000000000
-1.050000 1040408.0000000000000
-1.350000 1040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 1050500
+1 0 0 0 0 5 5 1 1050501
+1 0 0 0 0 5 5 2 1050502
+1 0 0 0 0 5 5 3 1050503
+1 0 0 0 0 5 5 4 1050504
+1 0 0 0 0 5 5 5 1050505
+1 0 0 0 0 5 5 6 1050506
+1 0 0 0 0 5 5 7 1050507
+1 0 0 0 0 5 5 8 1050508
+1 0 0 0 0 5 5 9 1050509
+
-"Time = 1.000000
--1.350000 1040400.0000000000000
--1.050000 1040401.0000000000000
--0.750000 1040402.0000000000000
--0.450000 1040403.0000000000000
--0.150000 1040404.0000000000000
-0.150000 1040405.0000000000000
-0.450000 1040406.0000000000000
-0.750000 1040407.0000000000000
-1.050000 1040408.0000000000000
-1.350000 1040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/spher3d_r.xl b/CarpetAttic/Cart3dTest/test/periodic-y/spher3d_r.xl
index 2865c92e4..b331c2bf4 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/spher3d_r.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/spher3d_r.xl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r x (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 1.36656503687164
+0 0 0 0 0 1 5 5 1.07121426428143
+0 0 0 0 0 2 5 5 0.779422863405995
+0 0 0 0 0 3 5 5 0.49749371855331
+0 0 0 0 0 4 5 5 0.259807621135332
+0 0 0 0 0 5 5 5 0.259807621135332
+0 0 0 0 0 6 5 5 0.49749371855331
+0 0 0 0 0 7 5 5 0.779422863405995
+0 0 0 0 0 8 5 5 1.07121426428143
+0 0 0 0 0 9 5 5 1.36656503687164
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 1.36656503687164
+1 0 0 0 0 1 5 5 1.07121426428143
+1 0 0 0 0 2 5 5 0.779422863405995
+1 0 0 0 0 3 5 5 0.49749371855331
+1 0 0 0 0 4 5 5 0.259807621135332
+1 0 0 0 0 5 5 5 0.259807621135332
+1 0 0 0 0 6 5 5 0.49749371855331
+1 0 0 0 0 7 5 5 0.779422863405995
+1 0 0 0 0 8 5 5 1.07121426428143
+1 0 0 0 0 9 5 5 1.36656503687164
+
-"Time = 1.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/spher3d_r.yl b/CarpetAttic/Cart3dTest/test/periodic-y/spher3d_r.yl
index 2865c92e4..8ca57fd44 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/spher3d_r.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/spher3d_r.yl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r y (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 1.36656503687164
+0 0 0 0 0 5 1 5 1.07121426428143
+0 0 0 0 0 5 2 5 0.779422863405995
+0 0 0 0 0 5 3 5 0.49749371855331
+0 0 0 0 0 5 4 5 0.259807621135332
+0 0 0 0 0 5 5 5 0.259807621135332
+0 0 0 0 0 5 6 5 0.49749371855331
+0 0 0 0 0 5 7 5 0.779422863405995
+0 0 0 0 0 5 8 5 1.07121426428143
+0 0 0 0 0 5 9 5 1.36656503687164
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 1.36656503687164
+1 0 0 0 0 5 1 5 1.07121426428143
+1 0 0 0 0 5 2 5 0.779422863405995
+1 0 0 0 0 5 3 5 0.49749371855331
+1 0 0 0 0 5 4 5 0.259807621135332
+1 0 0 0 0 5 5 5 0.259807621135332
+1 0 0 0 0 5 6 5 0.49749371855331
+1 0 0 0 0 5 7 5 0.779422863405995
+1 0 0 0 0 5 8 5 1.07121426428143
+1 0 0 0 0 5 9 5 1.36656503687164
+
-"Time = 1.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/spher3d_r.zl b/CarpetAttic/Cart3dTest/test/periodic-y/spher3d_r.zl
index 2865c92e4..677631008 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/spher3d_r.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/spher3d_r.zl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r z (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 1.36656503687164
+0 0 0 0 0 5 5 1 1.07121426428143
+0 0 0 0 0 5 5 2 0.779422863405995
+0 0 0 0 0 5 5 3 0.49749371855331
+0 0 0 0 0 5 5 4 0.259807621135332
+0 0 0 0 0 5 5 5 0.259807621135332
+0 0 0 0 0 5 5 6 0.49749371855331
+0 0 0 0 0 5 5 7 0.779422863405995
+0 0 0 0 0 5 5 8 1.07121426428143
+0 0 0 0 0 5 5 9 1.36656503687164
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 1.36656503687164
+1 0 0 0 0 5 5 1 1.07121426428143
+1 0 0 0 0 5 5 2 0.779422863405995
+1 0 0 0 0 5 5 3 0.49749371855331
+1 0 0 0 0 5 5 4 0.259807621135332
+1 0 0 0 0 5 5 5 0.259807621135332
+1 0 0 0 0 5 5 6 0.49749371855331
+1 0 0 0 0 5 5 7 0.779422863405995
+1 0 0 0 0 5 5 8 1.07121426428143
+1 0 0 0 0 5 5 9 1.36656503687164
+
-"Time = 1.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/txx.xl b/CarpetAttic/Cart3dTest/test/periodic-y/txx.xl
index 1cfbf4027..ec49b7513 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/txx.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/txx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx x (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 21000505
+0 0 0 0 0 1 5 5 21010505
+0 0 0 0 0 2 5 5 21020505
+0 0 0 0 0 3 5 5 21030505
+0 0 0 0 0 4 5 5 21040505
+0 0 0 0 0 5 5 5 21050505
+0 0 0 0 0 6 5 5 21060505
+0 0 0 0 0 7 5 5 21070505
+0 0 0 0 0 8 5 5 21080505
+0 0 0 0 0 9 5 5 21090505
-"Time = 0.000000
--1.350000 21000404.0000000000000
--1.050000 21010404.0000000000000
--0.750000 21020404.0000000000000
--0.450000 21030404.0000000000000
--0.150000 21040404.0000000000000
-0.150000 21050404.0000000000000
-0.450000 21060404.0000000000000
-0.750000 21070404.0000000000000
-1.050000 21080404.0000000000000
-1.350000 21090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 21000505
+1 0 0 0 0 1 5 5 21010505
+1 0 0 0 0 2 5 5 21020505
+1 0 0 0 0 3 5 5 21030505
+1 0 0 0 0 4 5 5 21040505
+1 0 0 0 0 5 5 5 21050505
+1 0 0 0 0 6 5 5 21060505
+1 0 0 0 0 7 5 5 21070505
+1 0 0 0 0 8 5 5 21080505
+1 0 0 0 0 9 5 5 21090505
+
-"Time = 1.000000
--1.350000 21000404.0000000000000
--1.050000 21010404.0000000000000
--0.750000 21020404.0000000000000
--0.450000 21030404.0000000000000
--0.150000 21040404.0000000000000
-0.150000 21050404.0000000000000
-0.450000 21060404.0000000000000
-0.750000 21070404.0000000000000
-1.050000 21080404.0000000000000
-1.350000 21090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/txx.yl b/CarpetAttic/Cart3dTest/test/periodic-y/txx.yl
index a72705c5c..6c2b5ac85 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/txx.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/txx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx y (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 21050005
+0 0 0 0 0 5 1 5 21050105
+0 0 0 0 0 5 2 5 21050205
+0 0 0 0 0 5 3 5 21050305
+0 0 0 0 0 5 4 5 21050405
+0 0 0 0 0 5 5 5 21050505
+0 0 0 0 0 5 6 5 21050605
+0 0 0 0 0 5 7 5 21050705
+0 0 0 0 0 5 8 5 21050805
+0 0 0 0 0 5 9 5 21050905
-"Time = 0.000000
--1.350000 21040004.0000000000000
--1.050000 21040104.0000000000000
--0.750000 21040204.0000000000000
--0.450000 21040304.0000000000000
--0.150000 21040404.0000000000000
-0.150000 21040504.0000000000000
-0.450000 21040604.0000000000000
-0.750000 21040704.0000000000000
-1.050000 21040804.0000000000000
-1.350000 21040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 21050805
+1 0 0 0 0 5 1 5 21050105
+1 0 0 0 0 5 2 5 21050205
+1 0 0 0 0 5 3 5 21050305
+1 0 0 0 0 5 4 5 21050405
+1 0 0 0 0 5 5 5 21050505
+1 0 0 0 0 5 6 5 21050605
+1 0 0 0 0 5 7 5 21050705
+1 0 0 0 0 5 8 5 21050805
+1 0 0 0 0 5 9 5 21050105
+
-"Time = 1.000000
--1.350000 21040804.0000000000000
--1.050000 21040104.0000000000000
--0.750000 21040204.0000000000000
--0.450000 21040304.0000000000000
--0.150000 21040404.0000000000000
-0.150000 21040504.0000000000000
-0.450000 21040604.0000000000000
-0.750000 21040704.0000000000000
-1.050000 21040804.0000000000000
-1.350000 21040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/txx.zl b/CarpetAttic/Cart3dTest/test/periodic-y/txx.zl
index 2cf23b07f..53ce67a80 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/txx.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/txx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx z (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 21050500
+0 0 0 0 0 5 5 1 21050501
+0 0 0 0 0 5 5 2 21050502
+0 0 0 0 0 5 5 3 21050503
+0 0 0 0 0 5 5 4 21050504
+0 0 0 0 0 5 5 5 21050505
+0 0 0 0 0 5 5 6 21050506
+0 0 0 0 0 5 5 7 21050507
+0 0 0 0 0 5 5 8 21050508
+0 0 0 0 0 5 5 9 21050509
-"Time = 0.000000
--1.350000 21040400.0000000000000
--1.050000 21040401.0000000000000
--0.750000 21040402.0000000000000
--0.450000 21040403.0000000000000
--0.150000 21040404.0000000000000
-0.150000 21040405.0000000000000
-0.450000 21040406.0000000000000
-0.750000 21040407.0000000000000
-1.050000 21040408.0000000000000
-1.350000 21040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 21050500
+1 0 0 0 0 5 5 1 21050501
+1 0 0 0 0 5 5 2 21050502
+1 0 0 0 0 5 5 3 21050503
+1 0 0 0 0 5 5 4 21050504
+1 0 0 0 0 5 5 5 21050505
+1 0 0 0 0 5 5 6 21050506
+1 0 0 0 0 5 5 7 21050507
+1 0 0 0 0 5 5 8 21050508
+1 0 0 0 0 5 5 9 21050509
+
-"Time = 1.000000
--1.350000 21040400.0000000000000
--1.050000 21040401.0000000000000
--0.750000 21040402.0000000000000
--0.450000 21040403.0000000000000
--0.150000 21040404.0000000000000
-0.150000 21040405.0000000000000
-0.450000 21040406.0000000000000
-0.750000 21040407.0000000000000
-1.050000 21040408.0000000000000
-1.350000 21040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/txy.xl b/CarpetAttic/Cart3dTest/test/periodic-y/txy.xl
index d6312820e..c0a04db3d 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/txy.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/txy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy x (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 22000505
+0 0 0 0 0 1 5 5 22010505
+0 0 0 0 0 2 5 5 22020505
+0 0 0 0 0 3 5 5 22030505
+0 0 0 0 0 4 5 5 22040505
+0 0 0 0 0 5 5 5 22050505
+0 0 0 0 0 6 5 5 22060505
+0 0 0 0 0 7 5 5 22070505
+0 0 0 0 0 8 5 5 22080505
+0 0 0 0 0 9 5 5 22090505
-"Time = 0.000000
--1.350000 22000404.0000000000000
--1.050000 22010404.0000000000000
--0.750000 22020404.0000000000000
--0.450000 22030404.0000000000000
--0.150000 22040404.0000000000000
-0.150000 22050404.0000000000000
-0.450000 22060404.0000000000000
-0.750000 22070404.0000000000000
-1.050000 22080404.0000000000000
-1.350000 22090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 22000505
+1 0 0 0 0 1 5 5 22010505
+1 0 0 0 0 2 5 5 22020505
+1 0 0 0 0 3 5 5 22030505
+1 0 0 0 0 4 5 5 22040505
+1 0 0 0 0 5 5 5 22050505
+1 0 0 0 0 6 5 5 22060505
+1 0 0 0 0 7 5 5 22070505
+1 0 0 0 0 8 5 5 22080505
+1 0 0 0 0 9 5 5 22090505
+
-"Time = 1.000000
--1.350000 22000404.0000000000000
--1.050000 22010404.0000000000000
--0.750000 22020404.0000000000000
--0.450000 22030404.0000000000000
--0.150000 22040404.0000000000000
-0.150000 22050404.0000000000000
-0.450000 22060404.0000000000000
-0.750000 22070404.0000000000000
-1.050000 22080404.0000000000000
-1.350000 22090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/txy.yl b/CarpetAttic/Cart3dTest/test/periodic-y/txy.yl
index 492b22939..60ca70da9 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/txy.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/txy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy y (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 22050005
+0 0 0 0 0 5 1 5 22050105
+0 0 0 0 0 5 2 5 22050205
+0 0 0 0 0 5 3 5 22050305
+0 0 0 0 0 5 4 5 22050405
+0 0 0 0 0 5 5 5 22050505
+0 0 0 0 0 5 6 5 22050605
+0 0 0 0 0 5 7 5 22050705
+0 0 0 0 0 5 8 5 22050805
+0 0 0 0 0 5 9 5 22050905
-"Time = 0.000000
--1.350000 22040004.0000000000000
--1.050000 22040104.0000000000000
--0.750000 22040204.0000000000000
--0.450000 22040304.0000000000000
--0.150000 22040404.0000000000000
-0.150000 22040504.0000000000000
-0.450000 22040604.0000000000000
-0.750000 22040704.0000000000000
-1.050000 22040804.0000000000000
-1.350000 22040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 22050805
+1 0 0 0 0 5 1 5 22050105
+1 0 0 0 0 5 2 5 22050205
+1 0 0 0 0 5 3 5 22050305
+1 0 0 0 0 5 4 5 22050405
+1 0 0 0 0 5 5 5 22050505
+1 0 0 0 0 5 6 5 22050605
+1 0 0 0 0 5 7 5 22050705
+1 0 0 0 0 5 8 5 22050805
+1 0 0 0 0 5 9 5 22050105
+
-"Time = 1.000000
--1.350000 22040804.0000000000000
--1.050000 22040104.0000000000000
--0.750000 22040204.0000000000000
--0.450000 22040304.0000000000000
--0.150000 22040404.0000000000000
-0.150000 22040504.0000000000000
-0.450000 22040604.0000000000000
-0.750000 22040704.0000000000000
-1.050000 22040804.0000000000000
-1.350000 22040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/txy.zl b/CarpetAttic/Cart3dTest/test/periodic-y/txy.zl
index d6077f554..1a41a546d 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/txy.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/txy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy z (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 22050500
+0 0 0 0 0 5 5 1 22050501
+0 0 0 0 0 5 5 2 22050502
+0 0 0 0 0 5 5 3 22050503
+0 0 0 0 0 5 5 4 22050504
+0 0 0 0 0 5 5 5 22050505
+0 0 0 0 0 5 5 6 22050506
+0 0 0 0 0 5 5 7 22050507
+0 0 0 0 0 5 5 8 22050508
+0 0 0 0 0 5 5 9 22050509
-"Time = 0.000000
--1.350000 22040400.0000000000000
--1.050000 22040401.0000000000000
--0.750000 22040402.0000000000000
--0.450000 22040403.0000000000000
--0.150000 22040404.0000000000000
-0.150000 22040405.0000000000000
-0.450000 22040406.0000000000000
-0.750000 22040407.0000000000000
-1.050000 22040408.0000000000000
-1.350000 22040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 22050500
+1 0 0 0 0 5 5 1 22050501
+1 0 0 0 0 5 5 2 22050502
+1 0 0 0 0 5 5 3 22050503
+1 0 0 0 0 5 5 4 22050504
+1 0 0 0 0 5 5 5 22050505
+1 0 0 0 0 5 5 6 22050506
+1 0 0 0 0 5 5 7 22050507
+1 0 0 0 0 5 5 8 22050508
+1 0 0 0 0 5 5 9 22050509
+
-"Time = 1.000000
--1.350000 22040400.0000000000000
--1.050000 22040401.0000000000000
--0.750000 22040402.0000000000000
--0.450000 22040403.0000000000000
--0.150000 22040404.0000000000000
-0.150000 22040405.0000000000000
-0.450000 22040406.0000000000000
-0.750000 22040407.0000000000000
-1.050000 22040408.0000000000000
-1.350000 22040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/txz.xl b/CarpetAttic/Cart3dTest/test/periodic-y/txz.xl
index ef2bcc682..ef056f783 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/txz.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/txz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz x (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 23000505
+0 0 0 0 0 1 5 5 23010505
+0 0 0 0 0 2 5 5 23020505
+0 0 0 0 0 3 5 5 23030505
+0 0 0 0 0 4 5 5 23040505
+0 0 0 0 0 5 5 5 23050505
+0 0 0 0 0 6 5 5 23060505
+0 0 0 0 0 7 5 5 23070505
+0 0 0 0 0 8 5 5 23080505
+0 0 0 0 0 9 5 5 23090505
-"Time = 0.000000
--1.350000 23000404.0000000000000
--1.050000 23010404.0000000000000
--0.750000 23020404.0000000000000
--0.450000 23030404.0000000000000
--0.150000 23040404.0000000000000
-0.150000 23050404.0000000000000
-0.450000 23060404.0000000000000
-0.750000 23070404.0000000000000
-1.050000 23080404.0000000000000
-1.350000 23090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 23000505
+1 0 0 0 0 1 5 5 23010505
+1 0 0 0 0 2 5 5 23020505
+1 0 0 0 0 3 5 5 23030505
+1 0 0 0 0 4 5 5 23040505
+1 0 0 0 0 5 5 5 23050505
+1 0 0 0 0 6 5 5 23060505
+1 0 0 0 0 7 5 5 23070505
+1 0 0 0 0 8 5 5 23080505
+1 0 0 0 0 9 5 5 23090505
+
-"Time = 1.000000
--1.350000 23000404.0000000000000
--1.050000 23010404.0000000000000
--0.750000 23020404.0000000000000
--0.450000 23030404.0000000000000
--0.150000 23040404.0000000000000
-0.150000 23050404.0000000000000
-0.450000 23060404.0000000000000
-0.750000 23070404.0000000000000
-1.050000 23080404.0000000000000
-1.350000 23090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/txz.yl b/CarpetAttic/Cart3dTest/test/periodic-y/txz.yl
index 19acffcb8..a0b82ff0e 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/txz.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/txz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz y (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 23050005
+0 0 0 0 0 5 1 5 23050105
+0 0 0 0 0 5 2 5 23050205
+0 0 0 0 0 5 3 5 23050305
+0 0 0 0 0 5 4 5 23050405
+0 0 0 0 0 5 5 5 23050505
+0 0 0 0 0 5 6 5 23050605
+0 0 0 0 0 5 7 5 23050705
+0 0 0 0 0 5 8 5 23050805
+0 0 0 0 0 5 9 5 23050905
-"Time = 0.000000
--1.350000 23040004.0000000000000
--1.050000 23040104.0000000000000
--0.750000 23040204.0000000000000
--0.450000 23040304.0000000000000
--0.150000 23040404.0000000000000
-0.150000 23040504.0000000000000
-0.450000 23040604.0000000000000
-0.750000 23040704.0000000000000
-1.050000 23040804.0000000000000
-1.350000 23040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 23050805
+1 0 0 0 0 5 1 5 23050105
+1 0 0 0 0 5 2 5 23050205
+1 0 0 0 0 5 3 5 23050305
+1 0 0 0 0 5 4 5 23050405
+1 0 0 0 0 5 5 5 23050505
+1 0 0 0 0 5 6 5 23050605
+1 0 0 0 0 5 7 5 23050705
+1 0 0 0 0 5 8 5 23050805
+1 0 0 0 0 5 9 5 23050105
+
-"Time = 1.000000
--1.350000 23040804.0000000000000
--1.050000 23040104.0000000000000
--0.750000 23040204.0000000000000
--0.450000 23040304.0000000000000
--0.150000 23040404.0000000000000
-0.150000 23040504.0000000000000
-0.450000 23040604.0000000000000
-0.750000 23040704.0000000000000
-1.050000 23040804.0000000000000
-1.350000 23040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/txz.zl b/CarpetAttic/Cart3dTest/test/periodic-y/txz.zl
index 57f19ade7..e64aa1884 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/txz.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/txz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz z (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 23050500
+0 0 0 0 0 5 5 1 23050501
+0 0 0 0 0 5 5 2 23050502
+0 0 0 0 0 5 5 3 23050503
+0 0 0 0 0 5 5 4 23050504
+0 0 0 0 0 5 5 5 23050505
+0 0 0 0 0 5 5 6 23050506
+0 0 0 0 0 5 5 7 23050507
+0 0 0 0 0 5 5 8 23050508
+0 0 0 0 0 5 5 9 23050509
-"Time = 0.000000
--1.350000 23040400.0000000000000
--1.050000 23040401.0000000000000
--0.750000 23040402.0000000000000
--0.450000 23040403.0000000000000
--0.150000 23040404.0000000000000
-0.150000 23040405.0000000000000
-0.450000 23040406.0000000000000
-0.750000 23040407.0000000000000
-1.050000 23040408.0000000000000
-1.350000 23040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 23050500
+1 0 0 0 0 5 5 1 23050501
+1 0 0 0 0 5 5 2 23050502
+1 0 0 0 0 5 5 3 23050503
+1 0 0 0 0 5 5 4 23050504
+1 0 0 0 0 5 5 5 23050505
+1 0 0 0 0 5 5 6 23050506
+1 0 0 0 0 5 5 7 23050507
+1 0 0 0 0 5 5 8 23050508
+1 0 0 0 0 5 5 9 23050509
+
-"Time = 1.000000
--1.350000 23040400.0000000000000
--1.050000 23040401.0000000000000
--0.750000 23040402.0000000000000
--0.450000 23040403.0000000000000
--0.150000 23040404.0000000000000
-0.150000 23040405.0000000000000
-0.450000 23040406.0000000000000
-0.750000 23040407.0000000000000
-1.050000 23040408.0000000000000
-1.350000 23040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/tyy.xl b/CarpetAttic/Cart3dTest/test/periodic-y/tyy.xl
index 6a34694eb..6a8ea71c4 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/tyy.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/tyy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy x (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 24000505
+0 0 0 0 0 1 5 5 24010505
+0 0 0 0 0 2 5 5 24020505
+0 0 0 0 0 3 5 5 24030505
+0 0 0 0 0 4 5 5 24040505
+0 0 0 0 0 5 5 5 24050505
+0 0 0 0 0 6 5 5 24060505
+0 0 0 0 0 7 5 5 24070505
+0 0 0 0 0 8 5 5 24080505
+0 0 0 0 0 9 5 5 24090505
-"Time = 0.000000
--1.350000 24000404.0000000000000
--1.050000 24010404.0000000000000
--0.750000 24020404.0000000000000
--0.450000 24030404.0000000000000
--0.150000 24040404.0000000000000
-0.150000 24050404.0000000000000
-0.450000 24060404.0000000000000
-0.750000 24070404.0000000000000
-1.050000 24080404.0000000000000
-1.350000 24090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 24000505
+1 0 0 0 0 1 5 5 24010505
+1 0 0 0 0 2 5 5 24020505
+1 0 0 0 0 3 5 5 24030505
+1 0 0 0 0 4 5 5 24040505
+1 0 0 0 0 5 5 5 24050505
+1 0 0 0 0 6 5 5 24060505
+1 0 0 0 0 7 5 5 24070505
+1 0 0 0 0 8 5 5 24080505
+1 0 0 0 0 9 5 5 24090505
+
-"Time = 1.000000
--1.350000 24000404.0000000000000
--1.050000 24010404.0000000000000
--0.750000 24020404.0000000000000
--0.450000 24030404.0000000000000
--0.150000 24040404.0000000000000
-0.150000 24050404.0000000000000
-0.450000 24060404.0000000000000
-0.750000 24070404.0000000000000
-1.050000 24080404.0000000000000
-1.350000 24090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/tyy.yl b/CarpetAttic/Cart3dTest/test/periodic-y/tyy.yl
index d5e9a5f00..e5167e1ee 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/tyy.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/tyy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy y (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 24050005
+0 0 0 0 0 5 1 5 24050105
+0 0 0 0 0 5 2 5 24050205
+0 0 0 0 0 5 3 5 24050305
+0 0 0 0 0 5 4 5 24050405
+0 0 0 0 0 5 5 5 24050505
+0 0 0 0 0 5 6 5 24050605
+0 0 0 0 0 5 7 5 24050705
+0 0 0 0 0 5 8 5 24050805
+0 0 0 0 0 5 9 5 24050905
-"Time = 0.000000
--1.350000 24040004.0000000000000
--1.050000 24040104.0000000000000
--0.750000 24040204.0000000000000
--0.450000 24040304.0000000000000
--0.150000 24040404.0000000000000
-0.150000 24040504.0000000000000
-0.450000 24040604.0000000000000
-0.750000 24040704.0000000000000
-1.050000 24040804.0000000000000
-1.350000 24040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 24050805
+1 0 0 0 0 5 1 5 24050105
+1 0 0 0 0 5 2 5 24050205
+1 0 0 0 0 5 3 5 24050305
+1 0 0 0 0 5 4 5 24050405
+1 0 0 0 0 5 5 5 24050505
+1 0 0 0 0 5 6 5 24050605
+1 0 0 0 0 5 7 5 24050705
+1 0 0 0 0 5 8 5 24050805
+1 0 0 0 0 5 9 5 24050105
+
-"Time = 1.000000
--1.350000 24040804.0000000000000
--1.050000 24040104.0000000000000
--0.750000 24040204.0000000000000
--0.450000 24040304.0000000000000
--0.150000 24040404.0000000000000
-0.150000 24040504.0000000000000
-0.450000 24040604.0000000000000
-0.750000 24040704.0000000000000
-1.050000 24040804.0000000000000
-1.350000 24040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/tyy.zl b/CarpetAttic/Cart3dTest/test/periodic-y/tyy.zl
index edaa43cf5..76876ffa8 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/tyy.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/tyy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy z (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 24050500
+0 0 0 0 0 5 5 1 24050501
+0 0 0 0 0 5 5 2 24050502
+0 0 0 0 0 5 5 3 24050503
+0 0 0 0 0 5 5 4 24050504
+0 0 0 0 0 5 5 5 24050505
+0 0 0 0 0 5 5 6 24050506
+0 0 0 0 0 5 5 7 24050507
+0 0 0 0 0 5 5 8 24050508
+0 0 0 0 0 5 5 9 24050509
-"Time = 0.000000
--1.350000 24040400.0000000000000
--1.050000 24040401.0000000000000
--0.750000 24040402.0000000000000
--0.450000 24040403.0000000000000
--0.150000 24040404.0000000000000
-0.150000 24040405.0000000000000
-0.450000 24040406.0000000000000
-0.750000 24040407.0000000000000
-1.050000 24040408.0000000000000
-1.350000 24040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 24050500
+1 0 0 0 0 5 5 1 24050501
+1 0 0 0 0 5 5 2 24050502
+1 0 0 0 0 5 5 3 24050503
+1 0 0 0 0 5 5 4 24050504
+1 0 0 0 0 5 5 5 24050505
+1 0 0 0 0 5 5 6 24050506
+1 0 0 0 0 5 5 7 24050507
+1 0 0 0 0 5 5 8 24050508
+1 0 0 0 0 5 5 9 24050509
+
-"Time = 1.000000
--1.350000 24040400.0000000000000
--1.050000 24040401.0000000000000
--0.750000 24040402.0000000000000
--0.450000 24040403.0000000000000
--0.150000 24040404.0000000000000
-0.150000 24040405.0000000000000
-0.450000 24040406.0000000000000
-0.750000 24040407.0000000000000
-1.050000 24040408.0000000000000
-1.350000 24040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/tyz.xl b/CarpetAttic/Cart3dTest/test/periodic-y/tyz.xl
index eceab34fe..011e5ce29 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/tyz.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/tyz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz x (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 25000505
+0 0 0 0 0 1 5 5 25010505
+0 0 0 0 0 2 5 5 25020505
+0 0 0 0 0 3 5 5 25030505
+0 0 0 0 0 4 5 5 25040505
+0 0 0 0 0 5 5 5 25050505
+0 0 0 0 0 6 5 5 25060505
+0 0 0 0 0 7 5 5 25070505
+0 0 0 0 0 8 5 5 25080505
+0 0 0 0 0 9 5 5 25090505
-"Time = 0.000000
--1.350000 25000404.0000000000000
--1.050000 25010404.0000000000000
--0.750000 25020404.0000000000000
--0.450000 25030404.0000000000000
--0.150000 25040404.0000000000000
-0.150000 25050404.0000000000000
-0.450000 25060404.0000000000000
-0.750000 25070404.0000000000000
-1.050000 25080404.0000000000000
-1.350000 25090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 25000505
+1 0 0 0 0 1 5 5 25010505
+1 0 0 0 0 2 5 5 25020505
+1 0 0 0 0 3 5 5 25030505
+1 0 0 0 0 4 5 5 25040505
+1 0 0 0 0 5 5 5 25050505
+1 0 0 0 0 6 5 5 25060505
+1 0 0 0 0 7 5 5 25070505
+1 0 0 0 0 8 5 5 25080505
+1 0 0 0 0 9 5 5 25090505
+
-"Time = 1.000000
--1.350000 25000404.0000000000000
--1.050000 25010404.0000000000000
--0.750000 25020404.0000000000000
--0.450000 25030404.0000000000000
--0.150000 25040404.0000000000000
-0.150000 25050404.0000000000000
-0.450000 25060404.0000000000000
-0.750000 25070404.0000000000000
-1.050000 25080404.0000000000000
-1.350000 25090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/tyz.yl b/CarpetAttic/Cart3dTest/test/periodic-y/tyz.yl
index 8a7a31c29..737aaf03b 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/tyz.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/tyz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz y (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 25050005
+0 0 0 0 0 5 1 5 25050105
+0 0 0 0 0 5 2 5 25050205
+0 0 0 0 0 5 3 5 25050305
+0 0 0 0 0 5 4 5 25050405
+0 0 0 0 0 5 5 5 25050505
+0 0 0 0 0 5 6 5 25050605
+0 0 0 0 0 5 7 5 25050705
+0 0 0 0 0 5 8 5 25050805
+0 0 0 0 0 5 9 5 25050905
-"Time = 0.000000
--1.350000 25040004.0000000000000
--1.050000 25040104.0000000000000
--0.750000 25040204.0000000000000
--0.450000 25040304.0000000000000
--0.150000 25040404.0000000000000
-0.150000 25040504.0000000000000
-0.450000 25040604.0000000000000
-0.750000 25040704.0000000000000
-1.050000 25040804.0000000000000
-1.350000 25040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 25050805
+1 0 0 0 0 5 1 5 25050105
+1 0 0 0 0 5 2 5 25050205
+1 0 0 0 0 5 3 5 25050305
+1 0 0 0 0 5 4 5 25050405
+1 0 0 0 0 5 5 5 25050505
+1 0 0 0 0 5 6 5 25050605
+1 0 0 0 0 5 7 5 25050705
+1 0 0 0 0 5 8 5 25050805
+1 0 0 0 0 5 9 5 25050105
+
-"Time = 1.000000
--1.350000 25040804.0000000000000
--1.050000 25040104.0000000000000
--0.750000 25040204.0000000000000
--0.450000 25040304.0000000000000
--0.150000 25040404.0000000000000
-0.150000 25040504.0000000000000
-0.450000 25040604.0000000000000
-0.750000 25040704.0000000000000
-1.050000 25040804.0000000000000
-1.350000 25040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/tyz.zl b/CarpetAttic/Cart3dTest/test/periodic-y/tyz.zl
index a0aa8abe2..798e9c83c 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/tyz.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/tyz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz z (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 25050500
+0 0 0 0 0 5 5 1 25050501
+0 0 0 0 0 5 5 2 25050502
+0 0 0 0 0 5 5 3 25050503
+0 0 0 0 0 5 5 4 25050504
+0 0 0 0 0 5 5 5 25050505
+0 0 0 0 0 5 5 6 25050506
+0 0 0 0 0 5 5 7 25050507
+0 0 0 0 0 5 5 8 25050508
+0 0 0 0 0 5 5 9 25050509
-"Time = 0.000000
--1.350000 25040400.0000000000000
--1.050000 25040401.0000000000000
--0.750000 25040402.0000000000000
--0.450000 25040403.0000000000000
--0.150000 25040404.0000000000000
-0.150000 25040405.0000000000000
-0.450000 25040406.0000000000000
-0.750000 25040407.0000000000000
-1.050000 25040408.0000000000000
-1.350000 25040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 25050500
+1 0 0 0 0 5 5 1 25050501
+1 0 0 0 0 5 5 2 25050502
+1 0 0 0 0 5 5 3 25050503
+1 0 0 0 0 5 5 4 25050504
+1 0 0 0 0 5 5 5 25050505
+1 0 0 0 0 5 5 6 25050506
+1 0 0 0 0 5 5 7 25050507
+1 0 0 0 0 5 5 8 25050508
+1 0 0 0 0 5 5 9 25050509
+
-"Time = 1.000000
--1.350000 25040400.0000000000000
--1.050000 25040401.0000000000000
--0.750000 25040402.0000000000000
--0.450000 25040403.0000000000000
--0.150000 25040404.0000000000000
-0.150000 25040405.0000000000000
-0.450000 25040406.0000000000000
-0.750000 25040407.0000000000000
-1.050000 25040408.0000000000000
-1.350000 25040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/tzz.xl b/CarpetAttic/Cart3dTest/test/periodic-y/tzz.xl
index 5e310afe3..0035c4de3 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/tzz.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/tzz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz x (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 26000505
+0 0 0 0 0 1 5 5 26010505
+0 0 0 0 0 2 5 5 26020505
+0 0 0 0 0 3 5 5 26030505
+0 0 0 0 0 4 5 5 26040505
+0 0 0 0 0 5 5 5 26050505
+0 0 0 0 0 6 5 5 26060505
+0 0 0 0 0 7 5 5 26070505
+0 0 0 0 0 8 5 5 26080505
+0 0 0 0 0 9 5 5 26090505
-"Time = 0.000000
--1.350000 26000404.0000000000000
--1.050000 26010404.0000000000000
--0.750000 26020404.0000000000000
--0.450000 26030404.0000000000000
--0.150000 26040404.0000000000000
-0.150000 26050404.0000000000000
-0.450000 26060404.0000000000000
-0.750000 26070404.0000000000000
-1.050000 26080404.0000000000000
-1.350000 26090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 26000505
+1 0 0 0 0 1 5 5 26010505
+1 0 0 0 0 2 5 5 26020505
+1 0 0 0 0 3 5 5 26030505
+1 0 0 0 0 4 5 5 26040505
+1 0 0 0 0 5 5 5 26050505
+1 0 0 0 0 6 5 5 26060505
+1 0 0 0 0 7 5 5 26070505
+1 0 0 0 0 8 5 5 26080505
+1 0 0 0 0 9 5 5 26090505
+
-"Time = 1.000000
--1.350000 26000404.0000000000000
--1.050000 26010404.0000000000000
--0.750000 26020404.0000000000000
--0.450000 26030404.0000000000000
--0.150000 26040404.0000000000000
-0.150000 26050404.0000000000000
-0.450000 26060404.0000000000000
-0.750000 26070404.0000000000000
-1.050000 26080404.0000000000000
-1.350000 26090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/tzz.yl b/CarpetAttic/Cart3dTest/test/periodic-y/tzz.yl
index 9ba6730a7..419eacda2 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/tzz.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/tzz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz y (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 26050005
+0 0 0 0 0 5 1 5 26050105
+0 0 0 0 0 5 2 5 26050205
+0 0 0 0 0 5 3 5 26050305
+0 0 0 0 0 5 4 5 26050405
+0 0 0 0 0 5 5 5 26050505
+0 0 0 0 0 5 6 5 26050605
+0 0 0 0 0 5 7 5 26050705
+0 0 0 0 0 5 8 5 26050805
+0 0 0 0 0 5 9 5 26050905
-"Time = 0.000000
--1.350000 26040004.0000000000000
--1.050000 26040104.0000000000000
--0.750000 26040204.0000000000000
--0.450000 26040304.0000000000000
--0.150000 26040404.0000000000000
-0.150000 26040504.0000000000000
-0.450000 26040604.0000000000000
-0.750000 26040704.0000000000000
-1.050000 26040804.0000000000000
-1.350000 26040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 26050805
+1 0 0 0 0 5 1 5 26050105
+1 0 0 0 0 5 2 5 26050205
+1 0 0 0 0 5 3 5 26050305
+1 0 0 0 0 5 4 5 26050405
+1 0 0 0 0 5 5 5 26050505
+1 0 0 0 0 5 6 5 26050605
+1 0 0 0 0 5 7 5 26050705
+1 0 0 0 0 5 8 5 26050805
+1 0 0 0 0 5 9 5 26050105
+
-"Time = 1.000000
--1.350000 26040804.0000000000000
--1.050000 26040104.0000000000000
--0.750000 26040204.0000000000000
--0.450000 26040304.0000000000000
--0.150000 26040404.0000000000000
-0.150000 26040504.0000000000000
-0.450000 26040604.0000000000000
-0.750000 26040704.0000000000000
-1.050000 26040804.0000000000000
-1.350000 26040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/tzz.zl b/CarpetAttic/Cart3dTest/test/periodic-y/tzz.zl
index da9bcba76..e5544b027 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/tzz.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/tzz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz z (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 26050500
+0 0 0 0 0 5 5 1 26050501
+0 0 0 0 0 5 5 2 26050502
+0 0 0 0 0 5 5 3 26050503
+0 0 0 0 0 5 5 4 26050504
+0 0 0 0 0 5 5 5 26050505
+0 0 0 0 0 5 5 6 26050506
+0 0 0 0 0 5 5 7 26050507
+0 0 0 0 0 5 5 8 26050508
+0 0 0 0 0 5 5 9 26050509
-"Time = 0.000000
--1.350000 26040400.0000000000000
--1.050000 26040401.0000000000000
--0.750000 26040402.0000000000000
--0.450000 26040403.0000000000000
--0.150000 26040404.0000000000000
-0.150000 26040405.0000000000000
-0.450000 26040406.0000000000000
-0.750000 26040407.0000000000000
-1.050000 26040408.0000000000000
-1.350000 26040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 26050500
+1 0 0 0 0 5 5 1 26050501
+1 0 0 0 0 5 5 2 26050502
+1 0 0 0 0 5 5 3 26050503
+1 0 0 0 0 5 5 4 26050504
+1 0 0 0 0 5 5 5 26050505
+1 0 0 0 0 5 5 6 26050506
+1 0 0 0 0 5 5 7 26050507
+1 0 0 0 0 5 5 8 26050508
+1 0 0 0 0 5 5 9 26050509
+
-"Time = 1.000000
--1.350000 26040400.0000000000000
--1.050000 26040401.0000000000000
--0.750000 26040402.0000000000000
--0.450000 26040403.0000000000000
--0.150000 26040404.0000000000000
-0.150000 26040405.0000000000000
-0.450000 26040406.0000000000000
-0.750000 26040407.0000000000000
-1.050000 26040408.0000000000000
-1.350000 26040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/vx.xl b/CarpetAttic/Cart3dTest/test/periodic-y/vx.xl
index 444a4bcde..d4dafe57f 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/vx.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/vx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx x (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 11000505
+0 0 0 0 0 1 5 5 11010505
+0 0 0 0 0 2 5 5 11020505
+0 0 0 0 0 3 5 5 11030505
+0 0 0 0 0 4 5 5 11040505
+0 0 0 0 0 5 5 5 11050505
+0 0 0 0 0 6 5 5 11060505
+0 0 0 0 0 7 5 5 11070505
+0 0 0 0 0 8 5 5 11080505
+0 0 0 0 0 9 5 5 11090505
-"Time = 0.000000
--1.350000 11000404.0000000000000
--1.050000 11010404.0000000000000
--0.750000 11020404.0000000000000
--0.450000 11030404.0000000000000
--0.150000 11040404.0000000000000
-0.150000 11050404.0000000000000
-0.450000 11060404.0000000000000
-0.750000 11070404.0000000000000
-1.050000 11080404.0000000000000
-1.350000 11090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 11000505
+1 0 0 0 0 1 5 5 11010505
+1 0 0 0 0 2 5 5 11020505
+1 0 0 0 0 3 5 5 11030505
+1 0 0 0 0 4 5 5 11040505
+1 0 0 0 0 5 5 5 11050505
+1 0 0 0 0 6 5 5 11060505
+1 0 0 0 0 7 5 5 11070505
+1 0 0 0 0 8 5 5 11080505
+1 0 0 0 0 9 5 5 11090505
+
-"Time = 1.000000
--1.350000 11000404.0000000000000
--1.050000 11010404.0000000000000
--0.750000 11020404.0000000000000
--0.450000 11030404.0000000000000
--0.150000 11040404.0000000000000
-0.150000 11050404.0000000000000
-0.450000 11060404.0000000000000
-0.750000 11070404.0000000000000
-1.050000 11080404.0000000000000
-1.350000 11090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/vx.yl b/CarpetAttic/Cart3dTest/test/periodic-y/vx.yl
index 7a824f392..f81df364e 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/vx.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/vx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx y (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 11050005
+0 0 0 0 0 5 1 5 11050105
+0 0 0 0 0 5 2 5 11050205
+0 0 0 0 0 5 3 5 11050305
+0 0 0 0 0 5 4 5 11050405
+0 0 0 0 0 5 5 5 11050505
+0 0 0 0 0 5 6 5 11050605
+0 0 0 0 0 5 7 5 11050705
+0 0 0 0 0 5 8 5 11050805
+0 0 0 0 0 5 9 5 11050905
-"Time = 0.000000
--1.350000 11040004.0000000000000
--1.050000 11040104.0000000000000
--0.750000 11040204.0000000000000
--0.450000 11040304.0000000000000
--0.150000 11040404.0000000000000
-0.150000 11040504.0000000000000
-0.450000 11040604.0000000000000
-0.750000 11040704.0000000000000
-1.050000 11040804.0000000000000
-1.350000 11040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 11050805
+1 0 0 0 0 5 1 5 11050105
+1 0 0 0 0 5 2 5 11050205
+1 0 0 0 0 5 3 5 11050305
+1 0 0 0 0 5 4 5 11050405
+1 0 0 0 0 5 5 5 11050505
+1 0 0 0 0 5 6 5 11050605
+1 0 0 0 0 5 7 5 11050705
+1 0 0 0 0 5 8 5 11050805
+1 0 0 0 0 5 9 5 11050105
+
-"Time = 1.000000
--1.350000 11040804.0000000000000
--1.050000 11040104.0000000000000
--0.750000 11040204.0000000000000
--0.450000 11040304.0000000000000
--0.150000 11040404.0000000000000
-0.150000 11040504.0000000000000
-0.450000 11040604.0000000000000
-0.750000 11040704.0000000000000
-1.050000 11040804.0000000000000
-1.350000 11040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/vx.zl b/CarpetAttic/Cart3dTest/test/periodic-y/vx.zl
index 2807edd31..24ff5a9f3 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/vx.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/vx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx z (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 11050500
+0 0 0 0 0 5 5 1 11050501
+0 0 0 0 0 5 5 2 11050502
+0 0 0 0 0 5 5 3 11050503
+0 0 0 0 0 5 5 4 11050504
+0 0 0 0 0 5 5 5 11050505
+0 0 0 0 0 5 5 6 11050506
+0 0 0 0 0 5 5 7 11050507
+0 0 0 0 0 5 5 8 11050508
+0 0 0 0 0 5 5 9 11050509
-"Time = 0.000000
--1.350000 11040400.0000000000000
--1.050000 11040401.0000000000000
--0.750000 11040402.0000000000000
--0.450000 11040403.0000000000000
--0.150000 11040404.0000000000000
-0.150000 11040405.0000000000000
-0.450000 11040406.0000000000000
-0.750000 11040407.0000000000000
-1.050000 11040408.0000000000000
-1.350000 11040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 11050500
+1 0 0 0 0 5 5 1 11050501
+1 0 0 0 0 5 5 2 11050502
+1 0 0 0 0 5 5 3 11050503
+1 0 0 0 0 5 5 4 11050504
+1 0 0 0 0 5 5 5 11050505
+1 0 0 0 0 5 5 6 11050506
+1 0 0 0 0 5 5 7 11050507
+1 0 0 0 0 5 5 8 11050508
+1 0 0 0 0 5 5 9 11050509
+
-"Time = 1.000000
--1.350000 11040400.0000000000000
--1.050000 11040401.0000000000000
--0.750000 11040402.0000000000000
--0.450000 11040403.0000000000000
--0.150000 11040404.0000000000000
-0.150000 11040405.0000000000000
-0.450000 11040406.0000000000000
-0.750000 11040407.0000000000000
-1.050000 11040408.0000000000000
-1.350000 11040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/vy.xl b/CarpetAttic/Cart3dTest/test/periodic-y/vy.xl
index 332f28267..487f382f4 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/vy.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/vy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy x (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 12000505
+0 0 0 0 0 1 5 5 12010505
+0 0 0 0 0 2 5 5 12020505
+0 0 0 0 0 3 5 5 12030505
+0 0 0 0 0 4 5 5 12040505
+0 0 0 0 0 5 5 5 12050505
+0 0 0 0 0 6 5 5 12060505
+0 0 0 0 0 7 5 5 12070505
+0 0 0 0 0 8 5 5 12080505
+0 0 0 0 0 9 5 5 12090505
-"Time = 0.000000
--1.350000 12000404.0000000000000
--1.050000 12010404.0000000000000
--0.750000 12020404.0000000000000
--0.450000 12030404.0000000000000
--0.150000 12040404.0000000000000
-0.150000 12050404.0000000000000
-0.450000 12060404.0000000000000
-0.750000 12070404.0000000000000
-1.050000 12080404.0000000000000
-1.350000 12090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 12000505
+1 0 0 0 0 1 5 5 12010505
+1 0 0 0 0 2 5 5 12020505
+1 0 0 0 0 3 5 5 12030505
+1 0 0 0 0 4 5 5 12040505
+1 0 0 0 0 5 5 5 12050505
+1 0 0 0 0 6 5 5 12060505
+1 0 0 0 0 7 5 5 12070505
+1 0 0 0 0 8 5 5 12080505
+1 0 0 0 0 9 5 5 12090505
+
-"Time = 1.000000
--1.350000 12000404.0000000000000
--1.050000 12010404.0000000000000
--0.750000 12020404.0000000000000
--0.450000 12030404.0000000000000
--0.150000 12040404.0000000000000
-0.150000 12050404.0000000000000
-0.450000 12060404.0000000000000
-0.750000 12070404.0000000000000
-1.050000 12080404.0000000000000
-1.350000 12090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/vy.yl b/CarpetAttic/Cart3dTest/test/periodic-y/vy.yl
index 9c876a85b..d8b64e9eb 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/vy.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/vy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy y (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 12050005
+0 0 0 0 0 5 1 5 12050105
+0 0 0 0 0 5 2 5 12050205
+0 0 0 0 0 5 3 5 12050305
+0 0 0 0 0 5 4 5 12050405
+0 0 0 0 0 5 5 5 12050505
+0 0 0 0 0 5 6 5 12050605
+0 0 0 0 0 5 7 5 12050705
+0 0 0 0 0 5 8 5 12050805
+0 0 0 0 0 5 9 5 12050905
-"Time = 0.000000
--1.350000 12040004.0000000000000
--1.050000 12040104.0000000000000
--0.750000 12040204.0000000000000
--0.450000 12040304.0000000000000
--0.150000 12040404.0000000000000
-0.150000 12040504.0000000000000
-0.450000 12040604.0000000000000
-0.750000 12040704.0000000000000
-1.050000 12040804.0000000000000
-1.350000 12040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 12050805
+1 0 0 0 0 5 1 5 12050105
+1 0 0 0 0 5 2 5 12050205
+1 0 0 0 0 5 3 5 12050305
+1 0 0 0 0 5 4 5 12050405
+1 0 0 0 0 5 5 5 12050505
+1 0 0 0 0 5 6 5 12050605
+1 0 0 0 0 5 7 5 12050705
+1 0 0 0 0 5 8 5 12050805
+1 0 0 0 0 5 9 5 12050105
+
-"Time = 1.000000
--1.350000 12040804.0000000000000
--1.050000 12040104.0000000000000
--0.750000 12040204.0000000000000
--0.450000 12040304.0000000000000
--0.150000 12040404.0000000000000
-0.150000 12040504.0000000000000
-0.450000 12040604.0000000000000
-0.750000 12040704.0000000000000
-1.050000 12040804.0000000000000
-1.350000 12040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/vy.zl b/CarpetAttic/Cart3dTest/test/periodic-y/vy.zl
index a5e645a3d..11157352b 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/vy.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/vy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy z (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 12050500
+0 0 0 0 0 5 5 1 12050501
+0 0 0 0 0 5 5 2 12050502
+0 0 0 0 0 5 5 3 12050503
+0 0 0 0 0 5 5 4 12050504
+0 0 0 0 0 5 5 5 12050505
+0 0 0 0 0 5 5 6 12050506
+0 0 0 0 0 5 5 7 12050507
+0 0 0 0 0 5 5 8 12050508
+0 0 0 0 0 5 5 9 12050509
-"Time = 0.000000
--1.350000 12040400.0000000000000
--1.050000 12040401.0000000000000
--0.750000 12040402.0000000000000
--0.450000 12040403.0000000000000
--0.150000 12040404.0000000000000
-0.150000 12040405.0000000000000
-0.450000 12040406.0000000000000
-0.750000 12040407.0000000000000
-1.050000 12040408.0000000000000
-1.350000 12040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 12050500
+1 0 0 0 0 5 5 1 12050501
+1 0 0 0 0 5 5 2 12050502
+1 0 0 0 0 5 5 3 12050503
+1 0 0 0 0 5 5 4 12050504
+1 0 0 0 0 5 5 5 12050505
+1 0 0 0 0 5 5 6 12050506
+1 0 0 0 0 5 5 7 12050507
+1 0 0 0 0 5 5 8 12050508
+1 0 0 0 0 5 5 9 12050509
+
-"Time = 1.000000
--1.350000 12040400.0000000000000
--1.050000 12040401.0000000000000
--0.750000 12040402.0000000000000
--0.450000 12040403.0000000000000
--0.150000 12040404.0000000000000
-0.150000 12040405.0000000000000
-0.450000 12040406.0000000000000
-0.750000 12040407.0000000000000
-1.050000 12040408.0000000000000
-1.350000 12040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/vz.xl b/CarpetAttic/Cart3dTest/test/periodic-y/vz.xl
index 8ab106eea..7385d5001 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/vz.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/vz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz x (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 13000505
+0 0 0 0 0 1 5 5 13010505
+0 0 0 0 0 2 5 5 13020505
+0 0 0 0 0 3 5 5 13030505
+0 0 0 0 0 4 5 5 13040505
+0 0 0 0 0 5 5 5 13050505
+0 0 0 0 0 6 5 5 13060505
+0 0 0 0 0 7 5 5 13070505
+0 0 0 0 0 8 5 5 13080505
+0 0 0 0 0 9 5 5 13090505
-"Time = 0.000000
--1.350000 13000404.0000000000000
--1.050000 13010404.0000000000000
--0.750000 13020404.0000000000000
--0.450000 13030404.0000000000000
--0.150000 13040404.0000000000000
-0.150000 13050404.0000000000000
-0.450000 13060404.0000000000000
-0.750000 13070404.0000000000000
-1.050000 13080404.0000000000000
-1.350000 13090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 13000505
+1 0 0 0 0 1 5 5 13010505
+1 0 0 0 0 2 5 5 13020505
+1 0 0 0 0 3 5 5 13030505
+1 0 0 0 0 4 5 5 13040505
+1 0 0 0 0 5 5 5 13050505
+1 0 0 0 0 6 5 5 13060505
+1 0 0 0 0 7 5 5 13070505
+1 0 0 0 0 8 5 5 13080505
+1 0 0 0 0 9 5 5 13090505
+
-"Time = 1.000000
--1.350000 13000404.0000000000000
--1.050000 13010404.0000000000000
--0.750000 13020404.0000000000000
--0.450000 13030404.0000000000000
--0.150000 13040404.0000000000000
-0.150000 13050404.0000000000000
-0.450000 13060404.0000000000000
-0.750000 13070404.0000000000000
-1.050000 13080404.0000000000000
-1.350000 13090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/vz.yl b/CarpetAttic/Cart3dTest/test/periodic-y/vz.yl
index 02c4d1a03..dc3f4f135 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/vz.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/vz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz y (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 13050005
+0 0 0 0 0 5 1 5 13050105
+0 0 0 0 0 5 2 5 13050205
+0 0 0 0 0 5 3 5 13050305
+0 0 0 0 0 5 4 5 13050405
+0 0 0 0 0 5 5 5 13050505
+0 0 0 0 0 5 6 5 13050605
+0 0 0 0 0 5 7 5 13050705
+0 0 0 0 0 5 8 5 13050805
+0 0 0 0 0 5 9 5 13050905
-"Time = 0.000000
--1.350000 13040004.0000000000000
--1.050000 13040104.0000000000000
--0.750000 13040204.0000000000000
--0.450000 13040304.0000000000000
--0.150000 13040404.0000000000000
-0.150000 13040504.0000000000000
-0.450000 13040604.0000000000000
-0.750000 13040704.0000000000000
-1.050000 13040804.0000000000000
-1.350000 13040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 13050805
+1 0 0 0 0 5 1 5 13050105
+1 0 0 0 0 5 2 5 13050205
+1 0 0 0 0 5 3 5 13050305
+1 0 0 0 0 5 4 5 13050405
+1 0 0 0 0 5 5 5 13050505
+1 0 0 0 0 5 6 5 13050605
+1 0 0 0 0 5 7 5 13050705
+1 0 0 0 0 5 8 5 13050805
+1 0 0 0 0 5 9 5 13050105
+
-"Time = 1.000000
--1.350000 13040804.0000000000000
--1.050000 13040104.0000000000000
--0.750000 13040204.0000000000000
--0.450000 13040304.0000000000000
--0.150000 13040404.0000000000000
-0.150000 13040504.0000000000000
-0.450000 13040604.0000000000000
-0.750000 13040704.0000000000000
-1.050000 13040804.0000000000000
-1.350000 13040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-y/vz.zl b/CarpetAttic/Cart3dTest/test/periodic-y/vz.zl
index f65643c09..3e3212924 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-y/vz.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-y/vz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz z (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 13050500
+0 0 0 0 0 5 5 1 13050501
+0 0 0 0 0 5 5 2 13050502
+0 0 0 0 0 5 5 3 13050503
+0 0 0 0 0 5 5 4 13050504
+0 0 0 0 0 5 5 5 13050505
+0 0 0 0 0 5 5 6 13050506
+0 0 0 0 0 5 5 7 13050507
+0 0 0 0 0 5 5 8 13050508
+0 0 0 0 0 5 5 9 13050509
-"Time = 0.000000
--1.350000 13040400.0000000000000
--1.050000 13040401.0000000000000
--0.750000 13040402.0000000000000
--0.450000 13040403.0000000000000
--0.150000 13040404.0000000000000
-0.150000 13040405.0000000000000
-0.450000 13040406.0000000000000
-0.750000 13040407.0000000000000
-1.050000 13040408.0000000000000
-1.350000 13040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 13050500
+1 0 0 0 0 5 5 1 13050501
+1 0 0 0 0 5 5 2 13050502
+1 0 0 0 0 5 5 3 13050503
+1 0 0 0 0 5 5 4 13050504
+1 0 0 0 0 5 5 5 13050505
+1 0 0 0 0 5 5 6 13050506
+1 0 0 0 0 5 5 7 13050507
+1 0 0 0 0 5 5 8 13050508
+1 0 0 0 0 5 5 9 13050509
+
-"Time = 1.000000
--1.350000 13040400.0000000000000
--1.050000 13040401.0000000000000
--0.750000 13040402.0000000000000
--0.450000 13040403.0000000000000
--0.150000 13040404.0000000000000
-0.150000 13040405.0000000000000
-0.450000 13040406.0000000000000
-0.750000 13040407.0000000000000
-1.050000 13040408.0000000000000
-1.350000 13040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/ax.xl b/CarpetAttic/Cart3dTest/test/periodic-z/ax.xl
index 64fc2ce29..a6dd976ff 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/ax.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/ax.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax x (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 31000505
+0 0 0 0 0 1 5 5 31010505
+0 0 0 0 0 2 5 5 31020505
+0 0 0 0 0 3 5 5 31030505
+0 0 0 0 0 4 5 5 31040505
+0 0 0 0 0 5 5 5 31050505
+0 0 0 0 0 6 5 5 31060505
+0 0 0 0 0 7 5 5 31070505
+0 0 0 0 0 8 5 5 31080505
+0 0 0 0 0 9 5 5 31090505
-"Time = 0.000000
--1.350000 31000404.0000000000000
--1.050000 31010404.0000000000000
--0.750000 31020404.0000000000000
--0.450000 31030404.0000000000000
--0.150000 31040404.0000000000000
-0.150000 31050404.0000000000000
-0.450000 31060404.0000000000000
-0.750000 31070404.0000000000000
-1.050000 31080404.0000000000000
-1.350000 31090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 31000505
+1 0 0 0 0 1 5 5 31010505
+1 0 0 0 0 2 5 5 31020505
+1 0 0 0 0 3 5 5 31030505
+1 0 0 0 0 4 5 5 31040505
+1 0 0 0 0 5 5 5 31050505
+1 0 0 0 0 6 5 5 31060505
+1 0 0 0 0 7 5 5 31070505
+1 0 0 0 0 8 5 5 31080505
+1 0 0 0 0 9 5 5 31090505
+
-"Time = 1.000000
--1.350000 31000404.0000000000000
--1.050000 31010404.0000000000000
--0.750000 31020404.0000000000000
--0.450000 31030404.0000000000000
--0.150000 31040404.0000000000000
-0.150000 31050404.0000000000000
-0.450000 31060404.0000000000000
-0.750000 31070404.0000000000000
-1.050000 31080404.0000000000000
-1.350000 31090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/ax.yl b/CarpetAttic/Cart3dTest/test/periodic-z/ax.yl
index 62c6b56cd..230d653ff 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/ax.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/ax.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax y (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 31050005
+0 0 0 0 0 5 1 5 31050105
+0 0 0 0 0 5 2 5 31050205
+0 0 0 0 0 5 3 5 31050305
+0 0 0 0 0 5 4 5 31050405
+0 0 0 0 0 5 5 5 31050505
+0 0 0 0 0 5 6 5 31050605
+0 0 0 0 0 5 7 5 31050705
+0 0 0 0 0 5 8 5 31050805
+0 0 0 0 0 5 9 5 31050905
-"Time = 0.000000
--1.350000 31040004.0000000000000
--1.050000 31040104.0000000000000
--0.750000 31040204.0000000000000
--0.450000 31040304.0000000000000
--0.150000 31040404.0000000000000
-0.150000 31040504.0000000000000
-0.450000 31040604.0000000000000
-0.750000 31040704.0000000000000
-1.050000 31040804.0000000000000
-1.350000 31040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 31050005
+1 0 0 0 0 5 1 5 31050105
+1 0 0 0 0 5 2 5 31050205
+1 0 0 0 0 5 3 5 31050305
+1 0 0 0 0 5 4 5 31050405
+1 0 0 0 0 5 5 5 31050505
+1 0 0 0 0 5 6 5 31050605
+1 0 0 0 0 5 7 5 31050705
+1 0 0 0 0 5 8 5 31050805
+1 0 0 0 0 5 9 5 31050905
+
-"Time = 1.000000
--1.350000 31040004.0000000000000
--1.050000 31040104.0000000000000
--0.750000 31040204.0000000000000
--0.450000 31040304.0000000000000
--0.150000 31040404.0000000000000
-0.150000 31040504.0000000000000
-0.450000 31040604.0000000000000
-0.750000 31040704.0000000000000
-1.050000 31040804.0000000000000
-1.350000 31040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/ax.zl b/CarpetAttic/Cart3dTest/test/periodic-z/ax.zl
index e0047661e..d8ddff9e5 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/ax.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/ax.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax z (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 31050500
+0 0 0 0 0 5 5 1 31050501
+0 0 0 0 0 5 5 2 31050502
+0 0 0 0 0 5 5 3 31050503
+0 0 0 0 0 5 5 4 31050504
+0 0 0 0 0 5 5 5 31050505
+0 0 0 0 0 5 5 6 31050506
+0 0 0 0 0 5 5 7 31050507
+0 0 0 0 0 5 5 8 31050508
+0 0 0 0 0 5 5 9 31050509
-"Time = 0.000000
--1.350000 31040400.0000000000000
--1.050000 31040401.0000000000000
--0.750000 31040402.0000000000000
--0.450000 31040403.0000000000000
--0.150000 31040404.0000000000000
-0.150000 31040405.0000000000000
-0.450000 31040406.0000000000000
-0.750000 31040407.0000000000000
-1.050000 31040408.0000000000000
-1.350000 31040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 31050506
+1 0 0 0 0 5 5 1 31050507
+1 0 0 0 0 5 5 2 31050502
+1 0 0 0 0 5 5 3 31050503
+1 0 0 0 0 5 5 4 31050504
+1 0 0 0 0 5 5 5 31050505
+1 0 0 0 0 5 5 6 31050506
+1 0 0 0 0 5 5 7 31050507
+1 0 0 0 0 5 5 8 31050502
+1 0 0 0 0 5 5 9 31050503
+
-"Time = 1.000000
--1.350000 31040406.0000000000000
--1.050000 31040407.0000000000000
--0.750000 31040402.0000000000000
--0.450000 31040403.0000000000000
--0.150000 31040404.0000000000000
-0.150000 31040405.0000000000000
-0.450000 31040406.0000000000000
-0.750000 31040407.0000000000000
-1.050000 31040402.0000000000000
-1.350000 31040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/ay.xl b/CarpetAttic/Cart3dTest/test/periodic-z/ay.xl
index f7fa2388b..d98eb4ea0 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/ay.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/ay.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay x (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 32000505
+0 0 0 0 0 1 5 5 32010505
+0 0 0 0 0 2 5 5 32020505
+0 0 0 0 0 3 5 5 32030505
+0 0 0 0 0 4 5 5 32040505
+0 0 0 0 0 5 5 5 32050505
+0 0 0 0 0 6 5 5 32060505
+0 0 0 0 0 7 5 5 32070505
+0 0 0 0 0 8 5 5 32080505
+0 0 0 0 0 9 5 5 32090505
-"Time = 0.000000
--1.350000 32000404.0000000000000
--1.050000 32010404.0000000000000
--0.750000 32020404.0000000000000
--0.450000 32030404.0000000000000
--0.150000 32040404.0000000000000
-0.150000 32050404.0000000000000
-0.450000 32060404.0000000000000
-0.750000 32070404.0000000000000
-1.050000 32080404.0000000000000
-1.350000 32090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 32000505
+1 0 0 0 0 1 5 5 32010505
+1 0 0 0 0 2 5 5 32020505
+1 0 0 0 0 3 5 5 32030505
+1 0 0 0 0 4 5 5 32040505
+1 0 0 0 0 5 5 5 32050505
+1 0 0 0 0 6 5 5 32060505
+1 0 0 0 0 7 5 5 32070505
+1 0 0 0 0 8 5 5 32080505
+1 0 0 0 0 9 5 5 32090505
+
-"Time = 1.000000
--1.350000 32000404.0000000000000
--1.050000 32010404.0000000000000
--0.750000 32020404.0000000000000
--0.450000 32030404.0000000000000
--0.150000 32040404.0000000000000
-0.150000 32050404.0000000000000
-0.450000 32060404.0000000000000
-0.750000 32070404.0000000000000
-1.050000 32080404.0000000000000
-1.350000 32090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/ay.yl b/CarpetAttic/Cart3dTest/test/periodic-z/ay.yl
index fac95ed2f..544d74dd3 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/ay.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/ay.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay y (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 32050005
+0 0 0 0 0 5 1 5 32050105
+0 0 0 0 0 5 2 5 32050205
+0 0 0 0 0 5 3 5 32050305
+0 0 0 0 0 5 4 5 32050405
+0 0 0 0 0 5 5 5 32050505
+0 0 0 0 0 5 6 5 32050605
+0 0 0 0 0 5 7 5 32050705
+0 0 0 0 0 5 8 5 32050805
+0 0 0 0 0 5 9 5 32050905
-"Time = 0.000000
--1.350000 32040004.0000000000000
--1.050000 32040104.0000000000000
--0.750000 32040204.0000000000000
--0.450000 32040304.0000000000000
--0.150000 32040404.0000000000000
-0.150000 32040504.0000000000000
-0.450000 32040604.0000000000000
-0.750000 32040704.0000000000000
-1.050000 32040804.0000000000000
-1.350000 32040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 32050005
+1 0 0 0 0 5 1 5 32050105
+1 0 0 0 0 5 2 5 32050205
+1 0 0 0 0 5 3 5 32050305
+1 0 0 0 0 5 4 5 32050405
+1 0 0 0 0 5 5 5 32050505
+1 0 0 0 0 5 6 5 32050605
+1 0 0 0 0 5 7 5 32050705
+1 0 0 0 0 5 8 5 32050805
+1 0 0 0 0 5 9 5 32050905
+
-"Time = 1.000000
--1.350000 32040004.0000000000000
--1.050000 32040104.0000000000000
--0.750000 32040204.0000000000000
--0.450000 32040304.0000000000000
--0.150000 32040404.0000000000000
-0.150000 32040504.0000000000000
-0.450000 32040604.0000000000000
-0.750000 32040704.0000000000000
-1.050000 32040804.0000000000000
-1.350000 32040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/ay.zl b/CarpetAttic/Cart3dTest/test/periodic-z/ay.zl
index 33e6321a7..fff87a090 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/ay.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/ay.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay z (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 32050500
+0 0 0 0 0 5 5 1 32050501
+0 0 0 0 0 5 5 2 32050502
+0 0 0 0 0 5 5 3 32050503
+0 0 0 0 0 5 5 4 32050504
+0 0 0 0 0 5 5 5 32050505
+0 0 0 0 0 5 5 6 32050506
+0 0 0 0 0 5 5 7 32050507
+0 0 0 0 0 5 5 8 32050508
+0 0 0 0 0 5 5 9 32050509
-"Time = 0.000000
--1.350000 32040400.0000000000000
--1.050000 32040401.0000000000000
--0.750000 32040402.0000000000000
--0.450000 32040403.0000000000000
--0.150000 32040404.0000000000000
-0.150000 32040405.0000000000000
-0.450000 32040406.0000000000000
-0.750000 32040407.0000000000000
-1.050000 32040408.0000000000000
-1.350000 32040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 32050506
+1 0 0 0 0 5 5 1 32050507
+1 0 0 0 0 5 5 2 32050502
+1 0 0 0 0 5 5 3 32050503
+1 0 0 0 0 5 5 4 32050504
+1 0 0 0 0 5 5 5 32050505
+1 0 0 0 0 5 5 6 32050506
+1 0 0 0 0 5 5 7 32050507
+1 0 0 0 0 5 5 8 32050502
+1 0 0 0 0 5 5 9 32050503
+
-"Time = 1.000000
--1.350000 32040406.0000000000000
--1.050000 32040407.0000000000000
--0.750000 32040402.0000000000000
--0.450000 32040403.0000000000000
--0.150000 32040404.0000000000000
-0.150000 32040405.0000000000000
-0.450000 32040406.0000000000000
-0.750000 32040407.0000000000000
-1.050000 32040402.0000000000000
-1.350000 32040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/az.xl b/CarpetAttic/Cart3dTest/test/periodic-z/az.xl
index 0a4b1c7a6..9c2733464 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/az.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/az.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::az x (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 33000505
+0 0 0 0 0 1 5 5 33010505
+0 0 0 0 0 2 5 5 33020505
+0 0 0 0 0 3 5 5 33030505
+0 0 0 0 0 4 5 5 33040505
+0 0 0 0 0 5 5 5 33050505
+0 0 0 0 0 6 5 5 33060505
+0 0 0 0 0 7 5 5 33070505
+0 0 0 0 0 8 5 5 33080505
+0 0 0 0 0 9 5 5 33090505
-"Time = 0.000000
--1.350000 33000404.0000000000000
--1.050000 33010404.0000000000000
--0.750000 33020404.0000000000000
--0.450000 33030404.0000000000000
--0.150000 33040404.0000000000000
-0.150000 33050404.0000000000000
-0.450000 33060404.0000000000000
-0.750000 33070404.0000000000000
-1.050000 33080404.0000000000000
-1.350000 33090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 33000505
+1 0 0 0 0 1 5 5 33010505
+1 0 0 0 0 2 5 5 33020505
+1 0 0 0 0 3 5 5 33030505
+1 0 0 0 0 4 5 5 33040505
+1 0 0 0 0 5 5 5 33050505
+1 0 0 0 0 6 5 5 33060505
+1 0 0 0 0 7 5 5 33070505
+1 0 0 0 0 8 5 5 33080505
+1 0 0 0 0 9 5 5 33090505
+
-"Time = 1.000000
--1.350000 33000404.0000000000000
--1.050000 33010404.0000000000000
--0.750000 33020404.0000000000000
--0.450000 33030404.0000000000000
--0.150000 33040404.0000000000000
-0.150000 33050404.0000000000000
-0.450000 33060404.0000000000000
-0.750000 33070404.0000000000000
-1.050000 33080404.0000000000000
-1.350000 33090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/az.yl b/CarpetAttic/Cart3dTest/test/periodic-z/az.yl
index beb086aee..d6681d1c1 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/az.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/az.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::az y (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 33050005
+0 0 0 0 0 5 1 5 33050105
+0 0 0 0 0 5 2 5 33050205
+0 0 0 0 0 5 3 5 33050305
+0 0 0 0 0 5 4 5 33050405
+0 0 0 0 0 5 5 5 33050505
+0 0 0 0 0 5 6 5 33050605
+0 0 0 0 0 5 7 5 33050705
+0 0 0 0 0 5 8 5 33050805
+0 0 0 0 0 5 9 5 33050905
-"Time = 0.000000
--1.350000 33040004.0000000000000
--1.050000 33040104.0000000000000
--0.750000 33040204.0000000000000
--0.450000 33040304.0000000000000
--0.150000 33040404.0000000000000
-0.150000 33040504.0000000000000
-0.450000 33040604.0000000000000
-0.750000 33040704.0000000000000
-1.050000 33040804.0000000000000
-1.350000 33040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 33050005
+1 0 0 0 0 5 1 5 33050105
+1 0 0 0 0 5 2 5 33050205
+1 0 0 0 0 5 3 5 33050305
+1 0 0 0 0 5 4 5 33050405
+1 0 0 0 0 5 5 5 33050505
+1 0 0 0 0 5 6 5 33050605
+1 0 0 0 0 5 7 5 33050705
+1 0 0 0 0 5 8 5 33050805
+1 0 0 0 0 5 9 5 33050905
+
-"Time = 1.000000
--1.350000 33040004.0000000000000
--1.050000 33040104.0000000000000
--0.750000 33040204.0000000000000
--0.450000 33040304.0000000000000
--0.150000 33040404.0000000000000
-0.150000 33040504.0000000000000
-0.450000 33040604.0000000000000
-0.750000 33040704.0000000000000
-1.050000 33040804.0000000000000
-1.350000 33040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/az.zl b/CarpetAttic/Cart3dTest/test/periodic-z/az.zl
index 5ffa462f8..c25f07cd1 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/az.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/az.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::az z (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 33050500
+0 0 0 0 0 5 5 1 33050501
+0 0 0 0 0 5 5 2 33050502
+0 0 0 0 0 5 5 3 33050503
+0 0 0 0 0 5 5 4 33050504
+0 0 0 0 0 5 5 5 33050505
+0 0 0 0 0 5 5 6 33050506
+0 0 0 0 0 5 5 7 33050507
+0 0 0 0 0 5 5 8 33050508
+0 0 0 0 0 5 5 9 33050509
-"Time = 0.000000
--1.350000 33040400.0000000000000
--1.050000 33040401.0000000000000
--0.750000 33040402.0000000000000
--0.450000 33040403.0000000000000
--0.150000 33040404.0000000000000
-0.150000 33040405.0000000000000
-0.450000 33040406.0000000000000
-0.750000 33040407.0000000000000
-1.050000 33040408.0000000000000
-1.350000 33040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 33050506
+1 0 0 0 0 5 5 1 33050507
+1 0 0 0 0 5 5 2 33050502
+1 0 0 0 0 5 5 3 33050503
+1 0 0 0 0 5 5 4 33050504
+1 0 0 0 0 5 5 5 33050505
+1 0 0 0 0 5 5 6 33050506
+1 0 0 0 0 5 5 7 33050507
+1 0 0 0 0 5 5 8 33050502
+1 0 0 0 0 5 5 9 33050503
+
-"Time = 1.000000
--1.350000 33040406.0000000000000
--1.050000 33040407.0000000000000
--0.750000 33040402.0000000000000
--0.450000 33040403.0000000000000
--0.150000 33040404.0000000000000
-0.150000 33040405.0000000000000
-0.450000 33040406.0000000000000
-0.750000 33040407.0000000000000
-1.050000 33040402.0000000000000
-1.350000 33040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_x.xl b/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_x.xl
index 33b36d0af..22e840206 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_x.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_x.xl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x x (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 -1.35
+0 0 0 0 0 1 5 5 -1.05
+0 0 0 0 0 2 5 5 -0.75
+0 0 0 0 0 3 5 5 -0.45
+0 0 0 0 0 4 5 5 -0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 6 5 5 0.45
+0 0 0 0 0 7 5 5 0.75
+0 0 0 0 0 8 5 5 1.05
+0 0 0 0 0 9 5 5 1.35
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 -1.35
+1 0 0 0 0 1 5 5 -1.05
+1 0 0 0 0 2 5 5 -0.75
+1 0 0 0 0 3 5 5 -0.45
+1 0 0 0 0 4 5 5 -0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 6 5 5 0.45
+1 0 0 0 0 7 5 5 0.75
+1 0 0 0 0 8 5 5 1.05
+1 0 0 0 0 9 5 5 1.35
+
-"Time = 1.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_x.yl b/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_x.yl
index 52b13d0ae..592815c82 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_x.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_x.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x y (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 0.15
+0 0 0 0 0 5 1 5 0.15
+0 0 0 0 0 5 2 5 0.15
+0 0 0 0 0 5 3 5 0.15
+0 0 0 0 0 5 4 5 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 6 5 0.15
+0 0 0 0 0 5 7 5 0.15
+0 0 0 0 0 5 8 5 0.15
+0 0 0 0 0 5 9 5 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 0.15
+1 0 0 0 0 5 1 5 0.15
+1 0 0 0 0 5 2 5 0.15
+1 0 0 0 0 5 3 5 0.15
+1 0 0 0 0 5 4 5 0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 5 6 5 0.15
+1 0 0 0 0 5 7 5 0.15
+1 0 0 0 0 5 8 5 0.15
+1 0 0 0 0 5 9 5 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_x.zl b/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_x.zl
index 52b13d0ae..1f894853b 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_x.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_x.zl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x z (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 0.15
+0 0 0 0 0 5 5 1 0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 5 5 3 0.15
+0 0 0 0 0 5 5 4 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 5 6 0.15
+0 0 0 0 0 5 5 7 0.15
+0 0 0 0 0 5 5 8 0.15
+0 0 0 0 0 5 5 9 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 0.15
+1 0 0 0 0 5 5 1 0.15
+1 0 0 0 0 5 5 2 0.15
+1 0 0 0 0 5 5 3 0.15
+1 0 0 0 0 5 5 4 0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 5 5 6 0.15
+1 0 0 0 0 5 5 7 0.15
+1 0 0 0 0 5 5 8 0.15
+1 0 0 0 0 5 5 9 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_y.xl b/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_y.xl
index 52b13d0ae..8ee8190c4 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_y.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_y.xl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y x (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 0.15
+0 0 0 0 0 1 5 5 0.15
+0 0 0 0 0 2 5 5 0.15
+0 0 0 0 0 3 5 5 0.15
+0 0 0 0 0 4 5 5 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 6 5 5 0.15
+0 0 0 0 0 7 5 5 0.15
+0 0 0 0 0 8 5 5 0.15
+0 0 0 0 0 9 5 5 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 0.15
+1 0 0 0 0 1 5 5 0.15
+1 0 0 0 0 2 5 5 0.15
+1 0 0 0 0 3 5 5 0.15
+1 0 0 0 0 4 5 5 0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 6 5 5 0.15
+1 0 0 0 0 7 5 5 0.15
+1 0 0 0 0 8 5 5 0.15
+1 0 0 0 0 9 5 5 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_y.yl b/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_y.yl
index 33b36d0af..aec69999e 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_y.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_y.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y y (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 -1.35
+0 0 0 0 0 5 1 5 -1.05
+0 0 0 0 0 5 2 5 -0.75
+0 0 0 0 0 5 3 5 -0.45
+0 0 0 0 0 5 4 5 -0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 6 5 0.45
+0 0 0 0 0 5 7 5 0.75
+0 0 0 0 0 5 8 5 1.05
+0 0 0 0 0 5 9 5 1.35
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 -1.35
+1 0 0 0 0 5 1 5 -1.05
+1 0 0 0 0 5 2 5 -0.75
+1 0 0 0 0 5 3 5 -0.45
+1 0 0 0 0 5 4 5 -0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 5 6 5 0.45
+1 0 0 0 0 5 7 5 0.75
+1 0 0 0 0 5 8 5 1.05
+1 0 0 0 0 5 9 5 1.35
+
-"Time = 1.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_y.zl b/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_y.zl
index 52b13d0ae..f32f3acb9 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_y.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_y.zl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y z (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 0.15
+0 0 0 0 0 5 5 1 0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 5 5 3 0.15
+0 0 0 0 0 5 5 4 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 5 6 0.15
+0 0 0 0 0 5 5 7 0.15
+0 0 0 0 0 5 5 8 0.15
+0 0 0 0 0 5 5 9 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 0.15
+1 0 0 0 0 5 5 1 0.15
+1 0 0 0 0 5 5 2 0.15
+1 0 0 0 0 5 5 3 0.15
+1 0 0 0 0 5 5 4 0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 5 5 6 0.15
+1 0 0 0 0 5 5 7 0.15
+1 0 0 0 0 5 5 8 0.15
+1 0 0 0 0 5 5 9 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_z.xl b/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_z.xl
index 52b13d0ae..400b19f39 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_z.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_z.xl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z x (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 0.15
+0 0 0 0 0 1 5 5 0.15
+0 0 0 0 0 2 5 5 0.15
+0 0 0 0 0 3 5 5 0.15
+0 0 0 0 0 4 5 5 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 6 5 5 0.15
+0 0 0 0 0 7 5 5 0.15
+0 0 0 0 0 8 5 5 0.15
+0 0 0 0 0 9 5 5 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 0.15
+1 0 0 0 0 1 5 5 0.15
+1 0 0 0 0 2 5 5 0.15
+1 0 0 0 0 3 5 5 0.15
+1 0 0 0 0 4 5 5 0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 6 5 5 0.15
+1 0 0 0 0 7 5 5 0.15
+1 0 0 0 0 8 5 5 0.15
+1 0 0 0 0 9 5 5 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_z.yl b/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_z.yl
index 52b13d0ae..0373176c5 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_z.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_z.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z y (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 0.15
+0 0 0 0 0 5 1 5 0.15
+0 0 0 0 0 5 2 5 0.15
+0 0 0 0 0 5 3 5 0.15
+0 0 0 0 0 5 4 5 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 6 5 0.15
+0 0 0 0 0 5 7 5 0.15
+0 0 0 0 0 5 8 5 0.15
+0 0 0 0 0 5 9 5 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 0.15
+1 0 0 0 0 5 1 5 0.15
+1 0 0 0 0 5 2 5 0.15
+1 0 0 0 0 5 3 5 0.15
+1 0 0 0 0 5 4 5 0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 5 6 5 0.15
+1 0 0 0 0 5 7 5 0.15
+1 0 0 0 0 5 8 5 0.15
+1 0 0 0 0 5 9 5 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_z.zl b/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_z.zl
index 33b36d0af..6fd48c20b 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_z.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/cart3d_z.zl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z z (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 -1.35
+0 0 0 0 0 5 5 1 -1.05
+0 0 0 0 0 5 5 2 -0.75
+0 0 0 0 0 5 5 3 -0.45
+0 0 0 0 0 5 5 4 -0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 5 6 0.45
+0 0 0 0 0 5 5 7 0.75
+0 0 0 0 0 5 5 8 1.05
+0 0 0 0 0 5 5 9 1.35
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 -1.35
+1 0 0 0 0 5 5 1 -1.05
+1 0 0 0 0 5 5 2 -0.75
+1 0 0 0 0 5 5 3 -0.45
+1 0 0 0 0 5 5 4 -0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 5 5 6 0.45
+1 0 0 0 0 5 5 7 0.75
+1 0 0 0 0 5 5 8 1.05
+1 0 0 0 0 5 5 9 1.35
+
-"Time = 1.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/fxx.xl b/CarpetAttic/Cart3dTest/test/periodic-z/fxx.xl
index 7e21c6074..f4e4dc8fd 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/fxx.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/fxx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx x (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 41000505
+0 0 0 0 0 1 5 5 41010505
+0 0 0 0 0 2 5 5 41020505
+0 0 0 0 0 3 5 5 41030505
+0 0 0 0 0 4 5 5 41040505
+0 0 0 0 0 5 5 5 41050505
+0 0 0 0 0 6 5 5 41060505
+0 0 0 0 0 7 5 5 41070505
+0 0 0 0 0 8 5 5 41080505
+0 0 0 0 0 9 5 5 41090505
-"Time = 0.000000
--1.350000 41000404.0000000000000
--1.050000 41010404.0000000000000
--0.750000 41020404.0000000000000
--0.450000 41030404.0000000000000
--0.150000 41040404.0000000000000
-0.150000 41050404.0000000000000
-0.450000 41060404.0000000000000
-0.750000 41070404.0000000000000
-1.050000 41080404.0000000000000
-1.350000 41090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 41000505
+1 0 0 0 0 1 5 5 41010505
+1 0 0 0 0 2 5 5 41020505
+1 0 0 0 0 3 5 5 41030505
+1 0 0 0 0 4 5 5 41040505
+1 0 0 0 0 5 5 5 41050505
+1 0 0 0 0 6 5 5 41060505
+1 0 0 0 0 7 5 5 41070505
+1 0 0 0 0 8 5 5 41080505
+1 0 0 0 0 9 5 5 41090505
+
-"Time = 1.000000
--1.350000 41000404.0000000000000
--1.050000 41010404.0000000000000
--0.750000 41020404.0000000000000
--0.450000 41030404.0000000000000
--0.150000 41040404.0000000000000
-0.150000 41050404.0000000000000
-0.450000 41060404.0000000000000
-0.750000 41070404.0000000000000
-1.050000 41080404.0000000000000
-1.350000 41090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/fxx.yl b/CarpetAttic/Cart3dTest/test/periodic-z/fxx.yl
index 17ff6b36c..153dc4e30 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/fxx.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/fxx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx y (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 41050005
+0 0 0 0 0 5 1 5 41050105
+0 0 0 0 0 5 2 5 41050205
+0 0 0 0 0 5 3 5 41050305
+0 0 0 0 0 5 4 5 41050405
+0 0 0 0 0 5 5 5 41050505
+0 0 0 0 0 5 6 5 41050605
+0 0 0 0 0 5 7 5 41050705
+0 0 0 0 0 5 8 5 41050805
+0 0 0 0 0 5 9 5 41050905
-"Time = 0.000000
--1.350000 41040004.0000000000000
--1.050000 41040104.0000000000000
--0.750000 41040204.0000000000000
--0.450000 41040304.0000000000000
--0.150000 41040404.0000000000000
-0.150000 41040504.0000000000000
-0.450000 41040604.0000000000000
-0.750000 41040704.0000000000000
-1.050000 41040804.0000000000000
-1.350000 41040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 41050005
+1 0 0 0 0 5 1 5 41050105
+1 0 0 0 0 5 2 5 41050205
+1 0 0 0 0 5 3 5 41050305
+1 0 0 0 0 5 4 5 41050405
+1 0 0 0 0 5 5 5 41050505
+1 0 0 0 0 5 6 5 41050605
+1 0 0 0 0 5 7 5 41050705
+1 0 0 0 0 5 8 5 41050805
+1 0 0 0 0 5 9 5 41050905
+
-"Time = 1.000000
--1.350000 41040004.0000000000000
--1.050000 41040104.0000000000000
--0.750000 41040204.0000000000000
--0.450000 41040304.0000000000000
--0.150000 41040404.0000000000000
-0.150000 41040504.0000000000000
-0.450000 41040604.0000000000000
-0.750000 41040704.0000000000000
-1.050000 41040804.0000000000000
-1.350000 41040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/fxx.zl b/CarpetAttic/Cart3dTest/test/periodic-z/fxx.zl
index fc6d3b6e1..64395ee5f 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/fxx.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/fxx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx z (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 41050500
+0 0 0 0 0 5 5 1 41050501
+0 0 0 0 0 5 5 2 41050502
+0 0 0 0 0 5 5 3 41050503
+0 0 0 0 0 5 5 4 41050504
+0 0 0 0 0 5 5 5 41050505
+0 0 0 0 0 5 5 6 41050506
+0 0 0 0 0 5 5 7 41050507
+0 0 0 0 0 5 5 8 41050508
+0 0 0 0 0 5 5 9 41050509
-"Time = 0.000000
--1.350000 41040400.0000000000000
--1.050000 41040401.0000000000000
--0.750000 41040402.0000000000000
--0.450000 41040403.0000000000000
--0.150000 41040404.0000000000000
-0.150000 41040405.0000000000000
-0.450000 41040406.0000000000000
-0.750000 41040407.0000000000000
-1.050000 41040408.0000000000000
-1.350000 41040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 41050506
+1 0 0 0 0 5 5 1 41050507
+1 0 0 0 0 5 5 2 41050502
+1 0 0 0 0 5 5 3 41050503
+1 0 0 0 0 5 5 4 41050504
+1 0 0 0 0 5 5 5 41050505
+1 0 0 0 0 5 5 6 41050506
+1 0 0 0 0 5 5 7 41050507
+1 0 0 0 0 5 5 8 41050502
+1 0 0 0 0 5 5 9 41050503
+
-"Time = 1.000000
--1.350000 41040406.0000000000000
--1.050000 41040407.0000000000000
--0.750000 41040402.0000000000000
--0.450000 41040403.0000000000000
--0.150000 41040404.0000000000000
-0.150000 41040405.0000000000000
-0.450000 41040406.0000000000000
-0.750000 41040407.0000000000000
-1.050000 41040402.0000000000000
-1.350000 41040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/fxy.xl b/CarpetAttic/Cart3dTest/test/periodic-z/fxy.xl
index 8fd09cad7..bec381f14 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/fxy.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/fxy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy x (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 42000505
+0 0 0 0 0 1 5 5 42010505
+0 0 0 0 0 2 5 5 42020505
+0 0 0 0 0 3 5 5 42030505
+0 0 0 0 0 4 5 5 42040505
+0 0 0 0 0 5 5 5 42050505
+0 0 0 0 0 6 5 5 42060505
+0 0 0 0 0 7 5 5 42070505
+0 0 0 0 0 8 5 5 42080505
+0 0 0 0 0 9 5 5 42090505
-"Time = 0.000000
--1.350000 42000404.0000000000000
--1.050000 42010404.0000000000000
--0.750000 42020404.0000000000000
--0.450000 42030404.0000000000000
--0.150000 42040404.0000000000000
-0.150000 42050404.0000000000000
-0.450000 42060404.0000000000000
-0.750000 42070404.0000000000000
-1.050000 42080404.0000000000000
-1.350000 42090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 42000505
+1 0 0 0 0 1 5 5 42010505
+1 0 0 0 0 2 5 5 42020505
+1 0 0 0 0 3 5 5 42030505
+1 0 0 0 0 4 5 5 42040505
+1 0 0 0 0 5 5 5 42050505
+1 0 0 0 0 6 5 5 42060505
+1 0 0 0 0 7 5 5 42070505
+1 0 0 0 0 8 5 5 42080505
+1 0 0 0 0 9 5 5 42090505
+
-"Time = 1.000000
--1.350000 42000404.0000000000000
--1.050000 42010404.0000000000000
--0.750000 42020404.0000000000000
--0.450000 42030404.0000000000000
--0.150000 42040404.0000000000000
-0.150000 42050404.0000000000000
-0.450000 42060404.0000000000000
-0.750000 42070404.0000000000000
-1.050000 42080404.0000000000000
-1.350000 42090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/fxy.yl b/CarpetAttic/Cart3dTest/test/periodic-z/fxy.yl
index 0349a3475..4a0d7a418 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/fxy.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/fxy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy y (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 42050005
+0 0 0 0 0 5 1 5 42050105
+0 0 0 0 0 5 2 5 42050205
+0 0 0 0 0 5 3 5 42050305
+0 0 0 0 0 5 4 5 42050405
+0 0 0 0 0 5 5 5 42050505
+0 0 0 0 0 5 6 5 42050605
+0 0 0 0 0 5 7 5 42050705
+0 0 0 0 0 5 8 5 42050805
+0 0 0 0 0 5 9 5 42050905
-"Time = 0.000000
--1.350000 42040004.0000000000000
--1.050000 42040104.0000000000000
--0.750000 42040204.0000000000000
--0.450000 42040304.0000000000000
--0.150000 42040404.0000000000000
-0.150000 42040504.0000000000000
-0.450000 42040604.0000000000000
-0.750000 42040704.0000000000000
-1.050000 42040804.0000000000000
-1.350000 42040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 42050005
+1 0 0 0 0 5 1 5 42050105
+1 0 0 0 0 5 2 5 42050205
+1 0 0 0 0 5 3 5 42050305
+1 0 0 0 0 5 4 5 42050405
+1 0 0 0 0 5 5 5 42050505
+1 0 0 0 0 5 6 5 42050605
+1 0 0 0 0 5 7 5 42050705
+1 0 0 0 0 5 8 5 42050805
+1 0 0 0 0 5 9 5 42050905
+
-"Time = 1.000000
--1.350000 42040004.0000000000000
--1.050000 42040104.0000000000000
--0.750000 42040204.0000000000000
--0.450000 42040304.0000000000000
--0.150000 42040404.0000000000000
-0.150000 42040504.0000000000000
-0.450000 42040604.0000000000000
-0.750000 42040704.0000000000000
-1.050000 42040804.0000000000000
-1.350000 42040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/fxy.zl b/CarpetAttic/Cart3dTest/test/periodic-z/fxy.zl
index b14c1908d..1e6801dbd 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/fxy.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/fxy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy z (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 42050500
+0 0 0 0 0 5 5 1 42050501
+0 0 0 0 0 5 5 2 42050502
+0 0 0 0 0 5 5 3 42050503
+0 0 0 0 0 5 5 4 42050504
+0 0 0 0 0 5 5 5 42050505
+0 0 0 0 0 5 5 6 42050506
+0 0 0 0 0 5 5 7 42050507
+0 0 0 0 0 5 5 8 42050508
+0 0 0 0 0 5 5 9 42050509
-"Time = 0.000000
--1.350000 42040400.0000000000000
--1.050000 42040401.0000000000000
--0.750000 42040402.0000000000000
--0.450000 42040403.0000000000000
--0.150000 42040404.0000000000000
-0.150000 42040405.0000000000000
-0.450000 42040406.0000000000000
-0.750000 42040407.0000000000000
-1.050000 42040408.0000000000000
-1.350000 42040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 42050506
+1 0 0 0 0 5 5 1 42050507
+1 0 0 0 0 5 5 2 42050502
+1 0 0 0 0 5 5 3 42050503
+1 0 0 0 0 5 5 4 42050504
+1 0 0 0 0 5 5 5 42050505
+1 0 0 0 0 5 5 6 42050506
+1 0 0 0 0 5 5 7 42050507
+1 0 0 0 0 5 5 8 42050502
+1 0 0 0 0 5 5 9 42050503
+
-"Time = 1.000000
--1.350000 42040406.0000000000000
--1.050000 42040407.0000000000000
--0.750000 42040402.0000000000000
--0.450000 42040403.0000000000000
--0.150000 42040404.0000000000000
-0.150000 42040405.0000000000000
-0.450000 42040406.0000000000000
-0.750000 42040407.0000000000000
-1.050000 42040402.0000000000000
-1.350000 42040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/fxz.xl b/CarpetAttic/Cart3dTest/test/periodic-z/fxz.xl
index a51d4594d..1a33e9082 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/fxz.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/fxz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz x (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 43000505
+0 0 0 0 0 1 5 5 43010505
+0 0 0 0 0 2 5 5 43020505
+0 0 0 0 0 3 5 5 43030505
+0 0 0 0 0 4 5 5 43040505
+0 0 0 0 0 5 5 5 43050505
+0 0 0 0 0 6 5 5 43060505
+0 0 0 0 0 7 5 5 43070505
+0 0 0 0 0 8 5 5 43080505
+0 0 0 0 0 9 5 5 43090505
-"Time = 0.000000
--1.350000 43000404.0000000000000
--1.050000 43010404.0000000000000
--0.750000 43020404.0000000000000
--0.450000 43030404.0000000000000
--0.150000 43040404.0000000000000
-0.150000 43050404.0000000000000
-0.450000 43060404.0000000000000
-0.750000 43070404.0000000000000
-1.050000 43080404.0000000000000
-1.350000 43090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 43000505
+1 0 0 0 0 1 5 5 43010505
+1 0 0 0 0 2 5 5 43020505
+1 0 0 0 0 3 5 5 43030505
+1 0 0 0 0 4 5 5 43040505
+1 0 0 0 0 5 5 5 43050505
+1 0 0 0 0 6 5 5 43060505
+1 0 0 0 0 7 5 5 43070505
+1 0 0 0 0 8 5 5 43080505
+1 0 0 0 0 9 5 5 43090505
+
-"Time = 1.000000
--1.350000 43000404.0000000000000
--1.050000 43010404.0000000000000
--0.750000 43020404.0000000000000
--0.450000 43030404.0000000000000
--0.150000 43040404.0000000000000
-0.150000 43050404.0000000000000
-0.450000 43060404.0000000000000
-0.750000 43070404.0000000000000
-1.050000 43080404.0000000000000
-1.350000 43090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/fxz.yl b/CarpetAttic/Cart3dTest/test/periodic-z/fxz.yl
index 443b6e499..866f8e838 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/fxz.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/fxz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz y (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 43050005
+0 0 0 0 0 5 1 5 43050105
+0 0 0 0 0 5 2 5 43050205
+0 0 0 0 0 5 3 5 43050305
+0 0 0 0 0 5 4 5 43050405
+0 0 0 0 0 5 5 5 43050505
+0 0 0 0 0 5 6 5 43050605
+0 0 0 0 0 5 7 5 43050705
+0 0 0 0 0 5 8 5 43050805
+0 0 0 0 0 5 9 5 43050905
-"Time = 0.000000
--1.350000 43040004.0000000000000
--1.050000 43040104.0000000000000
--0.750000 43040204.0000000000000
--0.450000 43040304.0000000000000
--0.150000 43040404.0000000000000
-0.150000 43040504.0000000000000
-0.450000 43040604.0000000000000
-0.750000 43040704.0000000000000
-1.050000 43040804.0000000000000
-1.350000 43040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 43050005
+1 0 0 0 0 5 1 5 43050105
+1 0 0 0 0 5 2 5 43050205
+1 0 0 0 0 5 3 5 43050305
+1 0 0 0 0 5 4 5 43050405
+1 0 0 0 0 5 5 5 43050505
+1 0 0 0 0 5 6 5 43050605
+1 0 0 0 0 5 7 5 43050705
+1 0 0 0 0 5 8 5 43050805
+1 0 0 0 0 5 9 5 43050905
+
-"Time = 1.000000
--1.350000 43040004.0000000000000
--1.050000 43040104.0000000000000
--0.750000 43040204.0000000000000
--0.450000 43040304.0000000000000
--0.150000 43040404.0000000000000
-0.150000 43040504.0000000000000
-0.450000 43040604.0000000000000
-0.750000 43040704.0000000000000
-1.050000 43040804.0000000000000
-1.350000 43040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/fxz.zl b/CarpetAttic/Cart3dTest/test/periodic-z/fxz.zl
index 5aef2dcd9..d110a11d6 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/fxz.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/fxz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz z (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 43050500
+0 0 0 0 0 5 5 1 43050501
+0 0 0 0 0 5 5 2 43050502
+0 0 0 0 0 5 5 3 43050503
+0 0 0 0 0 5 5 4 43050504
+0 0 0 0 0 5 5 5 43050505
+0 0 0 0 0 5 5 6 43050506
+0 0 0 0 0 5 5 7 43050507
+0 0 0 0 0 5 5 8 43050508
+0 0 0 0 0 5 5 9 43050509
-"Time = 0.000000
--1.350000 43040400.0000000000000
--1.050000 43040401.0000000000000
--0.750000 43040402.0000000000000
--0.450000 43040403.0000000000000
--0.150000 43040404.0000000000000
-0.150000 43040405.0000000000000
-0.450000 43040406.0000000000000
-0.750000 43040407.0000000000000
-1.050000 43040408.0000000000000
-1.350000 43040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 43050506
+1 0 0 0 0 5 5 1 43050507
+1 0 0 0 0 5 5 2 43050502
+1 0 0 0 0 5 5 3 43050503
+1 0 0 0 0 5 5 4 43050504
+1 0 0 0 0 5 5 5 43050505
+1 0 0 0 0 5 5 6 43050506
+1 0 0 0 0 5 5 7 43050507
+1 0 0 0 0 5 5 8 43050502
+1 0 0 0 0 5 5 9 43050503
+
-"Time = 1.000000
--1.350000 43040406.0000000000000
--1.050000 43040407.0000000000000
--0.750000 43040402.0000000000000
--0.450000 43040403.0000000000000
--0.150000 43040404.0000000000000
-0.150000 43040405.0000000000000
-0.450000 43040406.0000000000000
-0.750000 43040407.0000000000000
-1.050000 43040402.0000000000000
-1.350000 43040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/fyx.xl b/CarpetAttic/Cart3dTest/test/periodic-z/fyx.xl
index 98b712c6d..cae9cbe2d 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/fyx.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/fyx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx x (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 44000505
+0 0 0 0 0 1 5 5 44010505
+0 0 0 0 0 2 5 5 44020505
+0 0 0 0 0 3 5 5 44030505
+0 0 0 0 0 4 5 5 44040505
+0 0 0 0 0 5 5 5 44050505
+0 0 0 0 0 6 5 5 44060505
+0 0 0 0 0 7 5 5 44070505
+0 0 0 0 0 8 5 5 44080505
+0 0 0 0 0 9 5 5 44090505
-"Time = 0.000000
--1.350000 44000404.0000000000000
--1.050000 44010404.0000000000000
--0.750000 44020404.0000000000000
--0.450000 44030404.0000000000000
--0.150000 44040404.0000000000000
-0.150000 44050404.0000000000000
-0.450000 44060404.0000000000000
-0.750000 44070404.0000000000000
-1.050000 44080404.0000000000000
-1.350000 44090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 44000505
+1 0 0 0 0 1 5 5 44010505
+1 0 0 0 0 2 5 5 44020505
+1 0 0 0 0 3 5 5 44030505
+1 0 0 0 0 4 5 5 44040505
+1 0 0 0 0 5 5 5 44050505
+1 0 0 0 0 6 5 5 44060505
+1 0 0 0 0 7 5 5 44070505
+1 0 0 0 0 8 5 5 44080505
+1 0 0 0 0 9 5 5 44090505
+
-"Time = 1.000000
--1.350000 44000404.0000000000000
--1.050000 44010404.0000000000000
--0.750000 44020404.0000000000000
--0.450000 44030404.0000000000000
--0.150000 44040404.0000000000000
-0.150000 44050404.0000000000000
-0.450000 44060404.0000000000000
-0.750000 44070404.0000000000000
-1.050000 44080404.0000000000000
-1.350000 44090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/fyx.yl b/CarpetAttic/Cart3dTest/test/periodic-z/fyx.yl
index 51c881c01..5f874165c 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/fyx.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/fyx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx y (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 44050005
+0 0 0 0 0 5 1 5 44050105
+0 0 0 0 0 5 2 5 44050205
+0 0 0 0 0 5 3 5 44050305
+0 0 0 0 0 5 4 5 44050405
+0 0 0 0 0 5 5 5 44050505
+0 0 0 0 0 5 6 5 44050605
+0 0 0 0 0 5 7 5 44050705
+0 0 0 0 0 5 8 5 44050805
+0 0 0 0 0 5 9 5 44050905
-"Time = 0.000000
--1.350000 44040004.0000000000000
--1.050000 44040104.0000000000000
--0.750000 44040204.0000000000000
--0.450000 44040304.0000000000000
--0.150000 44040404.0000000000000
-0.150000 44040504.0000000000000
-0.450000 44040604.0000000000000
-0.750000 44040704.0000000000000
-1.050000 44040804.0000000000000
-1.350000 44040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 44050005
+1 0 0 0 0 5 1 5 44050105
+1 0 0 0 0 5 2 5 44050205
+1 0 0 0 0 5 3 5 44050305
+1 0 0 0 0 5 4 5 44050405
+1 0 0 0 0 5 5 5 44050505
+1 0 0 0 0 5 6 5 44050605
+1 0 0 0 0 5 7 5 44050705
+1 0 0 0 0 5 8 5 44050805
+1 0 0 0 0 5 9 5 44050905
+
-"Time = 1.000000
--1.350000 44040004.0000000000000
--1.050000 44040104.0000000000000
--0.750000 44040204.0000000000000
--0.450000 44040304.0000000000000
--0.150000 44040404.0000000000000
-0.150000 44040504.0000000000000
-0.450000 44040604.0000000000000
-0.750000 44040704.0000000000000
-1.050000 44040804.0000000000000
-1.350000 44040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/fyx.zl b/CarpetAttic/Cart3dTest/test/periodic-z/fyx.zl
index e8fa61b6b..3c7d095af 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/fyx.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/fyx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx z (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 44050500
+0 0 0 0 0 5 5 1 44050501
+0 0 0 0 0 5 5 2 44050502
+0 0 0 0 0 5 5 3 44050503
+0 0 0 0 0 5 5 4 44050504
+0 0 0 0 0 5 5 5 44050505
+0 0 0 0 0 5 5 6 44050506
+0 0 0 0 0 5 5 7 44050507
+0 0 0 0 0 5 5 8 44050508
+0 0 0 0 0 5 5 9 44050509
-"Time = 0.000000
--1.350000 44040400.0000000000000
--1.050000 44040401.0000000000000
--0.750000 44040402.0000000000000
--0.450000 44040403.0000000000000
--0.150000 44040404.0000000000000
-0.150000 44040405.0000000000000
-0.450000 44040406.0000000000000
-0.750000 44040407.0000000000000
-1.050000 44040408.0000000000000
-1.350000 44040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 44050506
+1 0 0 0 0 5 5 1 44050507
+1 0 0 0 0 5 5 2 44050502
+1 0 0 0 0 5 5 3 44050503
+1 0 0 0 0 5 5 4 44050504
+1 0 0 0 0 5 5 5 44050505
+1 0 0 0 0 5 5 6 44050506
+1 0 0 0 0 5 5 7 44050507
+1 0 0 0 0 5 5 8 44050502
+1 0 0 0 0 5 5 9 44050503
+
-"Time = 1.000000
--1.350000 44040406.0000000000000
--1.050000 44040407.0000000000000
--0.750000 44040402.0000000000000
--0.450000 44040403.0000000000000
--0.150000 44040404.0000000000000
-0.150000 44040405.0000000000000
-0.450000 44040406.0000000000000
-0.750000 44040407.0000000000000
-1.050000 44040402.0000000000000
-1.350000 44040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/fyy.xl b/CarpetAttic/Cart3dTest/test/periodic-z/fyy.xl
index dece88fbc..5008c5b15 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/fyy.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/fyy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy x (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 45000505
+0 0 0 0 0 1 5 5 45010505
+0 0 0 0 0 2 5 5 45020505
+0 0 0 0 0 3 5 5 45030505
+0 0 0 0 0 4 5 5 45040505
+0 0 0 0 0 5 5 5 45050505
+0 0 0 0 0 6 5 5 45060505
+0 0 0 0 0 7 5 5 45070505
+0 0 0 0 0 8 5 5 45080505
+0 0 0 0 0 9 5 5 45090505
-"Time = 0.000000
--1.350000 45000404.0000000000000
--1.050000 45010404.0000000000000
--0.750000 45020404.0000000000000
--0.450000 45030404.0000000000000
--0.150000 45040404.0000000000000
-0.150000 45050404.0000000000000
-0.450000 45060404.0000000000000
-0.750000 45070404.0000000000000
-1.050000 45080404.0000000000000
-1.350000 45090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 45000505
+1 0 0 0 0 1 5 5 45010505
+1 0 0 0 0 2 5 5 45020505
+1 0 0 0 0 3 5 5 45030505
+1 0 0 0 0 4 5 5 45040505
+1 0 0 0 0 5 5 5 45050505
+1 0 0 0 0 6 5 5 45060505
+1 0 0 0 0 7 5 5 45070505
+1 0 0 0 0 8 5 5 45080505
+1 0 0 0 0 9 5 5 45090505
+
-"Time = 1.000000
--1.350000 45000404.0000000000000
--1.050000 45010404.0000000000000
--0.750000 45020404.0000000000000
--0.450000 45030404.0000000000000
--0.150000 45040404.0000000000000
-0.150000 45050404.0000000000000
-0.450000 45060404.0000000000000
-0.750000 45070404.0000000000000
-1.050000 45080404.0000000000000
-1.350000 45090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/fyy.yl b/CarpetAttic/Cart3dTest/test/periodic-z/fyy.yl
index 0a85354ba..8396d09b1 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/fyy.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/fyy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy y (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 45050005
+0 0 0 0 0 5 1 5 45050105
+0 0 0 0 0 5 2 5 45050205
+0 0 0 0 0 5 3 5 45050305
+0 0 0 0 0 5 4 5 45050405
+0 0 0 0 0 5 5 5 45050505
+0 0 0 0 0 5 6 5 45050605
+0 0 0 0 0 5 7 5 45050705
+0 0 0 0 0 5 8 5 45050805
+0 0 0 0 0 5 9 5 45050905
-"Time = 0.000000
--1.350000 45040004.0000000000000
--1.050000 45040104.0000000000000
--0.750000 45040204.0000000000000
--0.450000 45040304.0000000000000
--0.150000 45040404.0000000000000
-0.150000 45040504.0000000000000
-0.450000 45040604.0000000000000
-0.750000 45040704.0000000000000
-1.050000 45040804.0000000000000
-1.350000 45040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 45050005
+1 0 0 0 0 5 1 5 45050105
+1 0 0 0 0 5 2 5 45050205
+1 0 0 0 0 5 3 5 45050305
+1 0 0 0 0 5 4 5 45050405
+1 0 0 0 0 5 5 5 45050505
+1 0 0 0 0 5 6 5 45050605
+1 0 0 0 0 5 7 5 45050705
+1 0 0 0 0 5 8 5 45050805
+1 0 0 0 0 5 9 5 45050905
+
-"Time = 1.000000
--1.350000 45040004.0000000000000
--1.050000 45040104.0000000000000
--0.750000 45040204.0000000000000
--0.450000 45040304.0000000000000
--0.150000 45040404.0000000000000
-0.150000 45040504.0000000000000
-0.450000 45040604.0000000000000
-0.750000 45040704.0000000000000
-1.050000 45040804.0000000000000
-1.350000 45040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/fyy.zl b/CarpetAttic/Cart3dTest/test/periodic-z/fyy.zl
index 5da540013..7df9b43b3 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/fyy.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/fyy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy z (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 45050500
+0 0 0 0 0 5 5 1 45050501
+0 0 0 0 0 5 5 2 45050502
+0 0 0 0 0 5 5 3 45050503
+0 0 0 0 0 5 5 4 45050504
+0 0 0 0 0 5 5 5 45050505
+0 0 0 0 0 5 5 6 45050506
+0 0 0 0 0 5 5 7 45050507
+0 0 0 0 0 5 5 8 45050508
+0 0 0 0 0 5 5 9 45050509
-"Time = 0.000000
--1.350000 45040400.0000000000000
--1.050000 45040401.0000000000000
--0.750000 45040402.0000000000000
--0.450000 45040403.0000000000000
--0.150000 45040404.0000000000000
-0.150000 45040405.0000000000000
-0.450000 45040406.0000000000000
-0.750000 45040407.0000000000000
-1.050000 45040408.0000000000000
-1.350000 45040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 45050506
+1 0 0 0 0 5 5 1 45050507
+1 0 0 0 0 5 5 2 45050502
+1 0 0 0 0 5 5 3 45050503
+1 0 0 0 0 5 5 4 45050504
+1 0 0 0 0 5 5 5 45050505
+1 0 0 0 0 5 5 6 45050506
+1 0 0 0 0 5 5 7 45050507
+1 0 0 0 0 5 5 8 45050502
+1 0 0 0 0 5 5 9 45050503
+
-"Time = 1.000000
--1.350000 45040406.0000000000000
--1.050000 45040407.0000000000000
--0.750000 45040402.0000000000000
--0.450000 45040403.0000000000000
--0.150000 45040404.0000000000000
-0.150000 45040405.0000000000000
-0.450000 45040406.0000000000000
-0.750000 45040407.0000000000000
-1.050000 45040402.0000000000000
-1.350000 45040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/fyz.xl b/CarpetAttic/Cart3dTest/test/periodic-z/fyz.xl
index cfcac0c16..d98ca2a15 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/fyz.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/fyz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz x (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 46000505
+0 0 0 0 0 1 5 5 46010505
+0 0 0 0 0 2 5 5 46020505
+0 0 0 0 0 3 5 5 46030505
+0 0 0 0 0 4 5 5 46040505
+0 0 0 0 0 5 5 5 46050505
+0 0 0 0 0 6 5 5 46060505
+0 0 0 0 0 7 5 5 46070505
+0 0 0 0 0 8 5 5 46080505
+0 0 0 0 0 9 5 5 46090505
-"Time = 0.000000
--1.350000 46000404.0000000000000
--1.050000 46010404.0000000000000
--0.750000 46020404.0000000000000
--0.450000 46030404.0000000000000
--0.150000 46040404.0000000000000
-0.150000 46050404.0000000000000
-0.450000 46060404.0000000000000
-0.750000 46070404.0000000000000
-1.050000 46080404.0000000000000
-1.350000 46090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 46000505
+1 0 0 0 0 1 5 5 46010505
+1 0 0 0 0 2 5 5 46020505
+1 0 0 0 0 3 5 5 46030505
+1 0 0 0 0 4 5 5 46040505
+1 0 0 0 0 5 5 5 46050505
+1 0 0 0 0 6 5 5 46060505
+1 0 0 0 0 7 5 5 46070505
+1 0 0 0 0 8 5 5 46080505
+1 0 0 0 0 9 5 5 46090505
+
-"Time = 1.000000
--1.350000 46000404.0000000000000
--1.050000 46010404.0000000000000
--0.750000 46020404.0000000000000
--0.450000 46030404.0000000000000
--0.150000 46040404.0000000000000
-0.150000 46050404.0000000000000
-0.450000 46060404.0000000000000
-0.750000 46070404.0000000000000
-1.050000 46080404.0000000000000
-1.350000 46090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/fyz.yl b/CarpetAttic/Cart3dTest/test/periodic-z/fyz.yl
index e0ece1e9f..028f1efd3 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/fyz.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/fyz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz y (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 46050005
+0 0 0 0 0 5 1 5 46050105
+0 0 0 0 0 5 2 5 46050205
+0 0 0 0 0 5 3 5 46050305
+0 0 0 0 0 5 4 5 46050405
+0 0 0 0 0 5 5 5 46050505
+0 0 0 0 0 5 6 5 46050605
+0 0 0 0 0 5 7 5 46050705
+0 0 0 0 0 5 8 5 46050805
+0 0 0 0 0 5 9 5 46050905
-"Time = 0.000000
--1.350000 46040004.0000000000000
--1.050000 46040104.0000000000000
--0.750000 46040204.0000000000000
--0.450000 46040304.0000000000000
--0.150000 46040404.0000000000000
-0.150000 46040504.0000000000000
-0.450000 46040604.0000000000000
-0.750000 46040704.0000000000000
-1.050000 46040804.0000000000000
-1.350000 46040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 46050005
+1 0 0 0 0 5 1 5 46050105
+1 0 0 0 0 5 2 5 46050205
+1 0 0 0 0 5 3 5 46050305
+1 0 0 0 0 5 4 5 46050405
+1 0 0 0 0 5 5 5 46050505
+1 0 0 0 0 5 6 5 46050605
+1 0 0 0 0 5 7 5 46050705
+1 0 0 0 0 5 8 5 46050805
+1 0 0 0 0 5 9 5 46050905
+
-"Time = 1.000000
--1.350000 46040004.0000000000000
--1.050000 46040104.0000000000000
--0.750000 46040204.0000000000000
--0.450000 46040304.0000000000000
--0.150000 46040404.0000000000000
-0.150000 46040504.0000000000000
-0.450000 46040604.0000000000000
-0.750000 46040704.0000000000000
-1.050000 46040804.0000000000000
-1.350000 46040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/fyz.zl b/CarpetAttic/Cart3dTest/test/periodic-z/fyz.zl
index f64cbf616..b2ef586f3 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/fyz.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/fyz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz z (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 46050500
+0 0 0 0 0 5 5 1 46050501
+0 0 0 0 0 5 5 2 46050502
+0 0 0 0 0 5 5 3 46050503
+0 0 0 0 0 5 5 4 46050504
+0 0 0 0 0 5 5 5 46050505
+0 0 0 0 0 5 5 6 46050506
+0 0 0 0 0 5 5 7 46050507
+0 0 0 0 0 5 5 8 46050508
+0 0 0 0 0 5 5 9 46050509
-"Time = 0.000000
--1.350000 46040400.0000000000000
--1.050000 46040401.0000000000000
--0.750000 46040402.0000000000000
--0.450000 46040403.0000000000000
--0.150000 46040404.0000000000000
-0.150000 46040405.0000000000000
-0.450000 46040406.0000000000000
-0.750000 46040407.0000000000000
-1.050000 46040408.0000000000000
-1.350000 46040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 46050506
+1 0 0 0 0 5 5 1 46050507
+1 0 0 0 0 5 5 2 46050502
+1 0 0 0 0 5 5 3 46050503
+1 0 0 0 0 5 5 4 46050504
+1 0 0 0 0 5 5 5 46050505
+1 0 0 0 0 5 5 6 46050506
+1 0 0 0 0 5 5 7 46050507
+1 0 0 0 0 5 5 8 46050502
+1 0 0 0 0 5 5 9 46050503
+
-"Time = 1.000000
--1.350000 46040406.0000000000000
--1.050000 46040407.0000000000000
--0.750000 46040402.0000000000000
--0.450000 46040403.0000000000000
--0.150000 46040404.0000000000000
-0.150000 46040405.0000000000000
-0.450000 46040406.0000000000000
-0.750000 46040407.0000000000000
-1.050000 46040402.0000000000000
-1.350000 46040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/fzx.xl b/CarpetAttic/Cart3dTest/test/periodic-z/fzx.xl
index 58a73c86e..b13ff1471 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/fzx.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/fzx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx x (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 47000505
+0 0 0 0 0 1 5 5 47010505
+0 0 0 0 0 2 5 5 47020505
+0 0 0 0 0 3 5 5 47030505
+0 0 0 0 0 4 5 5 47040505
+0 0 0 0 0 5 5 5 47050505
+0 0 0 0 0 6 5 5 47060505
+0 0 0 0 0 7 5 5 47070505
+0 0 0 0 0 8 5 5 47080505
+0 0 0 0 0 9 5 5 47090505
-"Time = 0.000000
--1.350000 47000404.0000000000000
--1.050000 47010404.0000000000000
--0.750000 47020404.0000000000000
--0.450000 47030404.0000000000000
--0.150000 47040404.0000000000000
-0.150000 47050404.0000000000000
-0.450000 47060404.0000000000000
-0.750000 47070404.0000000000000
-1.050000 47080404.0000000000000
-1.350000 47090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 47000505
+1 0 0 0 0 1 5 5 47010505
+1 0 0 0 0 2 5 5 47020505
+1 0 0 0 0 3 5 5 47030505
+1 0 0 0 0 4 5 5 47040505
+1 0 0 0 0 5 5 5 47050505
+1 0 0 0 0 6 5 5 47060505
+1 0 0 0 0 7 5 5 47070505
+1 0 0 0 0 8 5 5 47080505
+1 0 0 0 0 9 5 5 47090505
+
-"Time = 1.000000
--1.350000 47000404.0000000000000
--1.050000 47010404.0000000000000
--0.750000 47020404.0000000000000
--0.450000 47030404.0000000000000
--0.150000 47040404.0000000000000
-0.150000 47050404.0000000000000
-0.450000 47060404.0000000000000
-0.750000 47070404.0000000000000
-1.050000 47080404.0000000000000
-1.350000 47090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/fzx.yl b/CarpetAttic/Cart3dTest/test/periodic-z/fzx.yl
index 2eb33d462..734fc768c 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/fzx.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/fzx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx y (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 47050005
+0 0 0 0 0 5 1 5 47050105
+0 0 0 0 0 5 2 5 47050205
+0 0 0 0 0 5 3 5 47050305
+0 0 0 0 0 5 4 5 47050405
+0 0 0 0 0 5 5 5 47050505
+0 0 0 0 0 5 6 5 47050605
+0 0 0 0 0 5 7 5 47050705
+0 0 0 0 0 5 8 5 47050805
+0 0 0 0 0 5 9 5 47050905
-"Time = 0.000000
--1.350000 47040004.0000000000000
--1.050000 47040104.0000000000000
--0.750000 47040204.0000000000000
--0.450000 47040304.0000000000000
--0.150000 47040404.0000000000000
-0.150000 47040504.0000000000000
-0.450000 47040604.0000000000000
-0.750000 47040704.0000000000000
-1.050000 47040804.0000000000000
-1.350000 47040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 47050005
+1 0 0 0 0 5 1 5 47050105
+1 0 0 0 0 5 2 5 47050205
+1 0 0 0 0 5 3 5 47050305
+1 0 0 0 0 5 4 5 47050405
+1 0 0 0 0 5 5 5 47050505
+1 0 0 0 0 5 6 5 47050605
+1 0 0 0 0 5 7 5 47050705
+1 0 0 0 0 5 8 5 47050805
+1 0 0 0 0 5 9 5 47050905
+
-"Time = 1.000000
--1.350000 47040004.0000000000000
--1.050000 47040104.0000000000000
--0.750000 47040204.0000000000000
--0.450000 47040304.0000000000000
--0.150000 47040404.0000000000000
-0.150000 47040504.0000000000000
-0.450000 47040604.0000000000000
-0.750000 47040704.0000000000000
-1.050000 47040804.0000000000000
-1.350000 47040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/fzx.zl b/CarpetAttic/Cart3dTest/test/periodic-z/fzx.zl
index da6bcaa38..9ea3a452a 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/fzx.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/fzx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx z (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 47050500
+0 0 0 0 0 5 5 1 47050501
+0 0 0 0 0 5 5 2 47050502
+0 0 0 0 0 5 5 3 47050503
+0 0 0 0 0 5 5 4 47050504
+0 0 0 0 0 5 5 5 47050505
+0 0 0 0 0 5 5 6 47050506
+0 0 0 0 0 5 5 7 47050507
+0 0 0 0 0 5 5 8 47050508
+0 0 0 0 0 5 5 9 47050509
-"Time = 0.000000
--1.350000 47040400.0000000000000
--1.050000 47040401.0000000000000
--0.750000 47040402.0000000000000
--0.450000 47040403.0000000000000
--0.150000 47040404.0000000000000
-0.150000 47040405.0000000000000
-0.450000 47040406.0000000000000
-0.750000 47040407.0000000000000
-1.050000 47040408.0000000000000
-1.350000 47040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 47050506
+1 0 0 0 0 5 5 1 47050507
+1 0 0 0 0 5 5 2 47050502
+1 0 0 0 0 5 5 3 47050503
+1 0 0 0 0 5 5 4 47050504
+1 0 0 0 0 5 5 5 47050505
+1 0 0 0 0 5 5 6 47050506
+1 0 0 0 0 5 5 7 47050507
+1 0 0 0 0 5 5 8 47050502
+1 0 0 0 0 5 5 9 47050503
+
-"Time = 1.000000
--1.350000 47040406.0000000000000
--1.050000 47040407.0000000000000
--0.750000 47040402.0000000000000
--0.450000 47040403.0000000000000
--0.150000 47040404.0000000000000
-0.150000 47040405.0000000000000
-0.450000 47040406.0000000000000
-0.750000 47040407.0000000000000
-1.050000 47040402.0000000000000
-1.350000 47040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/fzy.xl b/CarpetAttic/Cart3dTest/test/periodic-z/fzy.xl
index 24e570127..d8b2ffa66 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/fzy.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/fzy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy x (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 48000505
+0 0 0 0 0 1 5 5 48010505
+0 0 0 0 0 2 5 5 48020505
+0 0 0 0 0 3 5 5 48030505
+0 0 0 0 0 4 5 5 48040505
+0 0 0 0 0 5 5 5 48050505
+0 0 0 0 0 6 5 5 48060505
+0 0 0 0 0 7 5 5 48070505
+0 0 0 0 0 8 5 5 48080505
+0 0 0 0 0 9 5 5 48090505
-"Time = 0.000000
--1.350000 48000404.0000000000000
--1.050000 48010404.0000000000000
--0.750000 48020404.0000000000000
--0.450000 48030404.0000000000000
--0.150000 48040404.0000000000000
-0.150000 48050404.0000000000000
-0.450000 48060404.0000000000000
-0.750000 48070404.0000000000000
-1.050000 48080404.0000000000000
-1.350000 48090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 48000505
+1 0 0 0 0 1 5 5 48010505
+1 0 0 0 0 2 5 5 48020505
+1 0 0 0 0 3 5 5 48030505
+1 0 0 0 0 4 5 5 48040505
+1 0 0 0 0 5 5 5 48050505
+1 0 0 0 0 6 5 5 48060505
+1 0 0 0 0 7 5 5 48070505
+1 0 0 0 0 8 5 5 48080505
+1 0 0 0 0 9 5 5 48090505
+
-"Time = 1.000000
--1.350000 48000404.0000000000000
--1.050000 48010404.0000000000000
--0.750000 48020404.0000000000000
--0.450000 48030404.0000000000000
--0.150000 48040404.0000000000000
-0.150000 48050404.0000000000000
-0.450000 48060404.0000000000000
-0.750000 48070404.0000000000000
-1.050000 48080404.0000000000000
-1.350000 48090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/fzy.yl b/CarpetAttic/Cart3dTest/test/periodic-z/fzy.yl
index 6a5e074ca..bde3eb782 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/fzy.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/fzy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy y (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 48050005
+0 0 0 0 0 5 1 5 48050105
+0 0 0 0 0 5 2 5 48050205
+0 0 0 0 0 5 3 5 48050305
+0 0 0 0 0 5 4 5 48050405
+0 0 0 0 0 5 5 5 48050505
+0 0 0 0 0 5 6 5 48050605
+0 0 0 0 0 5 7 5 48050705
+0 0 0 0 0 5 8 5 48050805
+0 0 0 0 0 5 9 5 48050905
-"Time = 0.000000
--1.350000 48040004.0000000000000
--1.050000 48040104.0000000000000
--0.750000 48040204.0000000000000
--0.450000 48040304.0000000000000
--0.150000 48040404.0000000000000
-0.150000 48040504.0000000000000
-0.450000 48040604.0000000000000
-0.750000 48040704.0000000000000
-1.050000 48040804.0000000000000
-1.350000 48040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 48050005
+1 0 0 0 0 5 1 5 48050105
+1 0 0 0 0 5 2 5 48050205
+1 0 0 0 0 5 3 5 48050305
+1 0 0 0 0 5 4 5 48050405
+1 0 0 0 0 5 5 5 48050505
+1 0 0 0 0 5 6 5 48050605
+1 0 0 0 0 5 7 5 48050705
+1 0 0 0 0 5 8 5 48050805
+1 0 0 0 0 5 9 5 48050905
+
-"Time = 1.000000
--1.350000 48040004.0000000000000
--1.050000 48040104.0000000000000
--0.750000 48040204.0000000000000
--0.450000 48040304.0000000000000
--0.150000 48040404.0000000000000
-0.150000 48040504.0000000000000
-0.450000 48040604.0000000000000
-0.750000 48040704.0000000000000
-1.050000 48040804.0000000000000
-1.350000 48040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/fzy.zl b/CarpetAttic/Cart3dTest/test/periodic-z/fzy.zl
index 2cd493e00..9de0b0937 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/fzy.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/fzy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy z (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 48050500
+0 0 0 0 0 5 5 1 48050501
+0 0 0 0 0 5 5 2 48050502
+0 0 0 0 0 5 5 3 48050503
+0 0 0 0 0 5 5 4 48050504
+0 0 0 0 0 5 5 5 48050505
+0 0 0 0 0 5 5 6 48050506
+0 0 0 0 0 5 5 7 48050507
+0 0 0 0 0 5 5 8 48050508
+0 0 0 0 0 5 5 9 48050509
-"Time = 0.000000
--1.350000 48040400.0000000000000
--1.050000 48040401.0000000000000
--0.750000 48040402.0000000000000
--0.450000 48040403.0000000000000
--0.150000 48040404.0000000000000
-0.150000 48040405.0000000000000
-0.450000 48040406.0000000000000
-0.750000 48040407.0000000000000
-1.050000 48040408.0000000000000
-1.350000 48040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 48050506
+1 0 0 0 0 5 5 1 48050507
+1 0 0 0 0 5 5 2 48050502
+1 0 0 0 0 5 5 3 48050503
+1 0 0 0 0 5 5 4 48050504
+1 0 0 0 0 5 5 5 48050505
+1 0 0 0 0 5 5 6 48050506
+1 0 0 0 0 5 5 7 48050507
+1 0 0 0 0 5 5 8 48050502
+1 0 0 0 0 5 5 9 48050503
+
-"Time = 1.000000
--1.350000 48040406.0000000000000
--1.050000 48040407.0000000000000
--0.750000 48040402.0000000000000
--0.450000 48040403.0000000000000
--0.150000 48040404.0000000000000
-0.150000 48040405.0000000000000
-0.450000 48040406.0000000000000
-0.750000 48040407.0000000000000
-1.050000 48040402.0000000000000
-1.350000 48040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/fzz.xl b/CarpetAttic/Cart3dTest/test/periodic-z/fzz.xl
index 8d275bbc1..9c8f5cbf0 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/fzz.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/fzz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz x (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 49000505
+0 0 0 0 0 1 5 5 49010505
+0 0 0 0 0 2 5 5 49020505
+0 0 0 0 0 3 5 5 49030505
+0 0 0 0 0 4 5 5 49040505
+0 0 0 0 0 5 5 5 49050505
+0 0 0 0 0 6 5 5 49060505
+0 0 0 0 0 7 5 5 49070505
+0 0 0 0 0 8 5 5 49080505
+0 0 0 0 0 9 5 5 49090505
-"Time = 0.000000
--1.350000 49000404.0000000000000
--1.050000 49010404.0000000000000
--0.750000 49020404.0000000000000
--0.450000 49030404.0000000000000
--0.150000 49040404.0000000000000
-0.150000 49050404.0000000000000
-0.450000 49060404.0000000000000
-0.750000 49070404.0000000000000
-1.050000 49080404.0000000000000
-1.350000 49090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 49000505
+1 0 0 0 0 1 5 5 49010505
+1 0 0 0 0 2 5 5 49020505
+1 0 0 0 0 3 5 5 49030505
+1 0 0 0 0 4 5 5 49040505
+1 0 0 0 0 5 5 5 49050505
+1 0 0 0 0 6 5 5 49060505
+1 0 0 0 0 7 5 5 49070505
+1 0 0 0 0 8 5 5 49080505
+1 0 0 0 0 9 5 5 49090505
+
-"Time = 1.000000
--1.350000 49000404.0000000000000
--1.050000 49010404.0000000000000
--0.750000 49020404.0000000000000
--0.450000 49030404.0000000000000
--0.150000 49040404.0000000000000
-0.150000 49050404.0000000000000
-0.450000 49060404.0000000000000
-0.750000 49070404.0000000000000
-1.050000 49080404.0000000000000
-1.350000 49090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/fzz.yl b/CarpetAttic/Cart3dTest/test/periodic-z/fzz.yl
index c9b0f9dd6..a5f45247e 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/fzz.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/fzz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz y (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 49050005
+0 0 0 0 0 5 1 5 49050105
+0 0 0 0 0 5 2 5 49050205
+0 0 0 0 0 5 3 5 49050305
+0 0 0 0 0 5 4 5 49050405
+0 0 0 0 0 5 5 5 49050505
+0 0 0 0 0 5 6 5 49050605
+0 0 0 0 0 5 7 5 49050705
+0 0 0 0 0 5 8 5 49050805
+0 0 0 0 0 5 9 5 49050905
-"Time = 0.000000
--1.350000 49040004.0000000000000
--1.050000 49040104.0000000000000
--0.750000 49040204.0000000000000
--0.450000 49040304.0000000000000
--0.150000 49040404.0000000000000
-0.150000 49040504.0000000000000
-0.450000 49040604.0000000000000
-0.750000 49040704.0000000000000
-1.050000 49040804.0000000000000
-1.350000 49040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 49050005
+1 0 0 0 0 5 1 5 49050105
+1 0 0 0 0 5 2 5 49050205
+1 0 0 0 0 5 3 5 49050305
+1 0 0 0 0 5 4 5 49050405
+1 0 0 0 0 5 5 5 49050505
+1 0 0 0 0 5 6 5 49050605
+1 0 0 0 0 5 7 5 49050705
+1 0 0 0 0 5 8 5 49050805
+1 0 0 0 0 5 9 5 49050905
+
-"Time = 1.000000
--1.350000 49040004.0000000000000
--1.050000 49040104.0000000000000
--0.750000 49040204.0000000000000
--0.450000 49040304.0000000000000
--0.150000 49040404.0000000000000
-0.150000 49040504.0000000000000
-0.450000 49040604.0000000000000
-0.750000 49040704.0000000000000
-1.050000 49040804.0000000000000
-1.350000 49040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/fzz.zl b/CarpetAttic/Cart3dTest/test/periodic-z/fzz.zl
index dd584b72b..e361fad48 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/fzz.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/fzz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz z (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 49050500
+0 0 0 0 0 5 5 1 49050501
+0 0 0 0 0 5 5 2 49050502
+0 0 0 0 0 5 5 3 49050503
+0 0 0 0 0 5 5 4 49050504
+0 0 0 0 0 5 5 5 49050505
+0 0 0 0 0 5 5 6 49050506
+0 0 0 0 0 5 5 7 49050507
+0 0 0 0 0 5 5 8 49050508
+0 0 0 0 0 5 5 9 49050509
-"Time = 0.000000
--1.350000 49040400.0000000000000
--1.050000 49040401.0000000000000
--0.750000 49040402.0000000000000
--0.450000 49040403.0000000000000
--0.150000 49040404.0000000000000
-0.150000 49040405.0000000000000
-0.450000 49040406.0000000000000
-0.750000 49040407.0000000000000
-1.050000 49040408.0000000000000
-1.350000 49040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 49050506
+1 0 0 0 0 5 5 1 49050507
+1 0 0 0 0 5 5 2 49050502
+1 0 0 0 0 5 5 3 49050503
+1 0 0 0 0 5 5 4 49050504
+1 0 0 0 0 5 5 5 49050505
+1 0 0 0 0 5 5 6 49050506
+1 0 0 0 0 5 5 7 49050507
+1 0 0 0 0 5 5 8 49050502
+1 0 0 0 0 5 5 9 49050503
+
-"Time = 1.000000
--1.350000 49040406.0000000000000
--1.050000 49040407.0000000000000
--0.750000 49040402.0000000000000
--0.450000 49040403.0000000000000
--0.150000 49040404.0000000000000
-0.150000 49040405.0000000000000
-0.450000 49040406.0000000000000
-0.750000 49040407.0000000000000
-1.050000 49040402.0000000000000
-1.350000 49040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/s.xl b/CarpetAttic/Cart3dTest/test/periodic-z/s.xl
index 043028545..14e43aa3e 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/s.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/s.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::s x (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 1000505
+0 0 0 0 0 1 5 5 1010505
+0 0 0 0 0 2 5 5 1020505
+0 0 0 0 0 3 5 5 1030505
+0 0 0 0 0 4 5 5 1040505
+0 0 0 0 0 5 5 5 1050505
+0 0 0 0 0 6 5 5 1060505
+0 0 0 0 0 7 5 5 1070505
+0 0 0 0 0 8 5 5 1080505
+0 0 0 0 0 9 5 5 1090505
-"Time = 0.000000
--1.350000 1000404.0000000000000
--1.050000 1010404.0000000000000
--0.750000 1020404.0000000000000
--0.450000 1030404.0000000000000
--0.150000 1040404.0000000000000
-0.150000 1050404.0000000000000
-0.450000 1060404.0000000000000
-0.750000 1070404.0000000000000
-1.050000 1080404.0000000000000
-1.350000 1090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 1000505
+1 0 0 0 0 1 5 5 1010505
+1 0 0 0 0 2 5 5 1020505
+1 0 0 0 0 3 5 5 1030505
+1 0 0 0 0 4 5 5 1040505
+1 0 0 0 0 5 5 5 1050505
+1 0 0 0 0 6 5 5 1060505
+1 0 0 0 0 7 5 5 1070505
+1 0 0 0 0 8 5 5 1080505
+1 0 0 0 0 9 5 5 1090505
+
-"Time = 1.000000
--1.350000 1000404.0000000000000
--1.050000 1010404.0000000000000
--0.750000 1020404.0000000000000
--0.450000 1030404.0000000000000
--0.150000 1040404.0000000000000
-0.150000 1050404.0000000000000
-0.450000 1060404.0000000000000
-0.750000 1070404.0000000000000
-1.050000 1080404.0000000000000
-1.350000 1090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/s.yl b/CarpetAttic/Cart3dTest/test/periodic-z/s.yl
index bcc21f685..a082c376e 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/s.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/s.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::s y (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 1050005
+0 0 0 0 0 5 1 5 1050105
+0 0 0 0 0 5 2 5 1050205
+0 0 0 0 0 5 3 5 1050305
+0 0 0 0 0 5 4 5 1050405
+0 0 0 0 0 5 5 5 1050505
+0 0 0 0 0 5 6 5 1050605
+0 0 0 0 0 5 7 5 1050705
+0 0 0 0 0 5 8 5 1050805
+0 0 0 0 0 5 9 5 1050905
-"Time = 0.000000
--1.350000 1040004.0000000000000
--1.050000 1040104.0000000000000
--0.750000 1040204.0000000000000
--0.450000 1040304.0000000000000
--0.150000 1040404.0000000000000
-0.150000 1040504.0000000000000
-0.450000 1040604.0000000000000
-0.750000 1040704.0000000000000
-1.050000 1040804.0000000000000
-1.350000 1040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 1050005
+1 0 0 0 0 5 1 5 1050105
+1 0 0 0 0 5 2 5 1050205
+1 0 0 0 0 5 3 5 1050305
+1 0 0 0 0 5 4 5 1050405
+1 0 0 0 0 5 5 5 1050505
+1 0 0 0 0 5 6 5 1050605
+1 0 0 0 0 5 7 5 1050705
+1 0 0 0 0 5 8 5 1050805
+1 0 0 0 0 5 9 5 1050905
+
-"Time = 1.000000
--1.350000 1040004.0000000000000
--1.050000 1040104.0000000000000
--0.750000 1040204.0000000000000
--0.450000 1040304.0000000000000
--0.150000 1040404.0000000000000
-0.150000 1040504.0000000000000
-0.450000 1040604.0000000000000
-0.750000 1040704.0000000000000
-1.050000 1040804.0000000000000
-1.350000 1040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/s.zl b/CarpetAttic/Cart3dTest/test/periodic-z/s.zl
index 959765716..6735790f7 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/s.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/s.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::s z (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 1050500
+0 0 0 0 0 5 5 1 1050501
+0 0 0 0 0 5 5 2 1050502
+0 0 0 0 0 5 5 3 1050503
+0 0 0 0 0 5 5 4 1050504
+0 0 0 0 0 5 5 5 1050505
+0 0 0 0 0 5 5 6 1050506
+0 0 0 0 0 5 5 7 1050507
+0 0 0 0 0 5 5 8 1050508
+0 0 0 0 0 5 5 9 1050509
-"Time = 0.000000
--1.350000 1040400.0000000000000
--1.050000 1040401.0000000000000
--0.750000 1040402.0000000000000
--0.450000 1040403.0000000000000
--0.150000 1040404.0000000000000
-0.150000 1040405.0000000000000
-0.450000 1040406.0000000000000
-0.750000 1040407.0000000000000
-1.050000 1040408.0000000000000
-1.350000 1040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 1050506
+1 0 0 0 0 5 5 1 1050507
+1 0 0 0 0 5 5 2 1050502
+1 0 0 0 0 5 5 3 1050503
+1 0 0 0 0 5 5 4 1050504
+1 0 0 0 0 5 5 5 1050505
+1 0 0 0 0 5 5 6 1050506
+1 0 0 0 0 5 5 7 1050507
+1 0 0 0 0 5 5 8 1050502
+1 0 0 0 0 5 5 9 1050503
+
-"Time = 1.000000
--1.350000 1040406.0000000000000
--1.050000 1040407.0000000000000
--0.750000 1040402.0000000000000
--0.450000 1040403.0000000000000
--0.150000 1040404.0000000000000
-0.150000 1040405.0000000000000
-0.450000 1040406.0000000000000
-0.750000 1040407.0000000000000
-1.050000 1040402.0000000000000
-1.350000 1040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/spher3d_r.xl b/CarpetAttic/Cart3dTest/test/periodic-z/spher3d_r.xl
index 2865c92e4..b331c2bf4 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/spher3d_r.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/spher3d_r.xl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r x (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 1.36656503687164
+0 0 0 0 0 1 5 5 1.07121426428143
+0 0 0 0 0 2 5 5 0.779422863405995
+0 0 0 0 0 3 5 5 0.49749371855331
+0 0 0 0 0 4 5 5 0.259807621135332
+0 0 0 0 0 5 5 5 0.259807621135332
+0 0 0 0 0 6 5 5 0.49749371855331
+0 0 0 0 0 7 5 5 0.779422863405995
+0 0 0 0 0 8 5 5 1.07121426428143
+0 0 0 0 0 9 5 5 1.36656503687164
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 1.36656503687164
+1 0 0 0 0 1 5 5 1.07121426428143
+1 0 0 0 0 2 5 5 0.779422863405995
+1 0 0 0 0 3 5 5 0.49749371855331
+1 0 0 0 0 4 5 5 0.259807621135332
+1 0 0 0 0 5 5 5 0.259807621135332
+1 0 0 0 0 6 5 5 0.49749371855331
+1 0 0 0 0 7 5 5 0.779422863405995
+1 0 0 0 0 8 5 5 1.07121426428143
+1 0 0 0 0 9 5 5 1.36656503687164
+
-"Time = 1.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/spher3d_r.yl b/CarpetAttic/Cart3dTest/test/periodic-z/spher3d_r.yl
index 2865c92e4..8ca57fd44 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/spher3d_r.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/spher3d_r.yl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r y (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 1.36656503687164
+0 0 0 0 0 5 1 5 1.07121426428143
+0 0 0 0 0 5 2 5 0.779422863405995
+0 0 0 0 0 5 3 5 0.49749371855331
+0 0 0 0 0 5 4 5 0.259807621135332
+0 0 0 0 0 5 5 5 0.259807621135332
+0 0 0 0 0 5 6 5 0.49749371855331
+0 0 0 0 0 5 7 5 0.779422863405995
+0 0 0 0 0 5 8 5 1.07121426428143
+0 0 0 0 0 5 9 5 1.36656503687164
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 1.36656503687164
+1 0 0 0 0 5 1 5 1.07121426428143
+1 0 0 0 0 5 2 5 0.779422863405995
+1 0 0 0 0 5 3 5 0.49749371855331
+1 0 0 0 0 5 4 5 0.259807621135332
+1 0 0 0 0 5 5 5 0.259807621135332
+1 0 0 0 0 5 6 5 0.49749371855331
+1 0 0 0 0 5 7 5 0.779422863405995
+1 0 0 0 0 5 8 5 1.07121426428143
+1 0 0 0 0 5 9 5 1.36656503687164
+
-"Time = 1.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/spher3d_r.zl b/CarpetAttic/Cart3dTest/test/periodic-z/spher3d_r.zl
index 2865c92e4..677631008 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/spher3d_r.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/spher3d_r.zl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r z (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 1.36656503687164
+0 0 0 0 0 5 5 1 1.07121426428143
+0 0 0 0 0 5 5 2 0.779422863405995
+0 0 0 0 0 5 5 3 0.49749371855331
+0 0 0 0 0 5 5 4 0.259807621135332
+0 0 0 0 0 5 5 5 0.259807621135332
+0 0 0 0 0 5 5 6 0.49749371855331
+0 0 0 0 0 5 5 7 0.779422863405995
+0 0 0 0 0 5 5 8 1.07121426428143
+0 0 0 0 0 5 5 9 1.36656503687164
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 1.36656503687164
+1 0 0 0 0 5 5 1 1.07121426428143
+1 0 0 0 0 5 5 2 0.779422863405995
+1 0 0 0 0 5 5 3 0.49749371855331
+1 0 0 0 0 5 5 4 0.259807621135332
+1 0 0 0 0 5 5 5 0.259807621135332
+1 0 0 0 0 5 5 6 0.49749371855331
+1 0 0 0 0 5 5 7 0.779422863405995
+1 0 0 0 0 5 5 8 1.07121426428143
+1 0 0 0 0 5 5 9 1.36656503687164
+
-"Time = 1.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/txx.xl b/CarpetAttic/Cart3dTest/test/periodic-z/txx.xl
index 1cfbf4027..ec49b7513 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/txx.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/txx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx x (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 21000505
+0 0 0 0 0 1 5 5 21010505
+0 0 0 0 0 2 5 5 21020505
+0 0 0 0 0 3 5 5 21030505
+0 0 0 0 0 4 5 5 21040505
+0 0 0 0 0 5 5 5 21050505
+0 0 0 0 0 6 5 5 21060505
+0 0 0 0 0 7 5 5 21070505
+0 0 0 0 0 8 5 5 21080505
+0 0 0 0 0 9 5 5 21090505
-"Time = 0.000000
--1.350000 21000404.0000000000000
--1.050000 21010404.0000000000000
--0.750000 21020404.0000000000000
--0.450000 21030404.0000000000000
--0.150000 21040404.0000000000000
-0.150000 21050404.0000000000000
-0.450000 21060404.0000000000000
-0.750000 21070404.0000000000000
-1.050000 21080404.0000000000000
-1.350000 21090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 21000505
+1 0 0 0 0 1 5 5 21010505
+1 0 0 0 0 2 5 5 21020505
+1 0 0 0 0 3 5 5 21030505
+1 0 0 0 0 4 5 5 21040505
+1 0 0 0 0 5 5 5 21050505
+1 0 0 0 0 6 5 5 21060505
+1 0 0 0 0 7 5 5 21070505
+1 0 0 0 0 8 5 5 21080505
+1 0 0 0 0 9 5 5 21090505
+
-"Time = 1.000000
--1.350000 21000404.0000000000000
--1.050000 21010404.0000000000000
--0.750000 21020404.0000000000000
--0.450000 21030404.0000000000000
--0.150000 21040404.0000000000000
-0.150000 21050404.0000000000000
-0.450000 21060404.0000000000000
-0.750000 21070404.0000000000000
-1.050000 21080404.0000000000000
-1.350000 21090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/txx.yl b/CarpetAttic/Cart3dTest/test/periodic-z/txx.yl
index 2f1d9710a..9e35e0b71 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/txx.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/txx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx y (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 21050005
+0 0 0 0 0 5 1 5 21050105
+0 0 0 0 0 5 2 5 21050205
+0 0 0 0 0 5 3 5 21050305
+0 0 0 0 0 5 4 5 21050405
+0 0 0 0 0 5 5 5 21050505
+0 0 0 0 0 5 6 5 21050605
+0 0 0 0 0 5 7 5 21050705
+0 0 0 0 0 5 8 5 21050805
+0 0 0 0 0 5 9 5 21050905
-"Time = 0.000000
--1.350000 21040004.0000000000000
--1.050000 21040104.0000000000000
--0.750000 21040204.0000000000000
--0.450000 21040304.0000000000000
--0.150000 21040404.0000000000000
-0.150000 21040504.0000000000000
-0.450000 21040604.0000000000000
-0.750000 21040704.0000000000000
-1.050000 21040804.0000000000000
-1.350000 21040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 21050005
+1 0 0 0 0 5 1 5 21050105
+1 0 0 0 0 5 2 5 21050205
+1 0 0 0 0 5 3 5 21050305
+1 0 0 0 0 5 4 5 21050405
+1 0 0 0 0 5 5 5 21050505
+1 0 0 0 0 5 6 5 21050605
+1 0 0 0 0 5 7 5 21050705
+1 0 0 0 0 5 8 5 21050805
+1 0 0 0 0 5 9 5 21050905
+
-"Time = 1.000000
--1.350000 21040004.0000000000000
--1.050000 21040104.0000000000000
--0.750000 21040204.0000000000000
--0.450000 21040304.0000000000000
--0.150000 21040404.0000000000000
-0.150000 21040504.0000000000000
-0.450000 21040604.0000000000000
-0.750000 21040704.0000000000000
-1.050000 21040804.0000000000000
-1.350000 21040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/txx.zl b/CarpetAttic/Cart3dTest/test/periodic-z/txx.zl
index 8485c6026..9d68b5276 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/txx.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/txx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx z (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 21050500
+0 0 0 0 0 5 5 1 21050501
+0 0 0 0 0 5 5 2 21050502
+0 0 0 0 0 5 5 3 21050503
+0 0 0 0 0 5 5 4 21050504
+0 0 0 0 0 5 5 5 21050505
+0 0 0 0 0 5 5 6 21050506
+0 0 0 0 0 5 5 7 21050507
+0 0 0 0 0 5 5 8 21050508
+0 0 0 0 0 5 5 9 21050509
-"Time = 0.000000
--1.350000 21040400.0000000000000
--1.050000 21040401.0000000000000
--0.750000 21040402.0000000000000
--0.450000 21040403.0000000000000
--0.150000 21040404.0000000000000
-0.150000 21040405.0000000000000
-0.450000 21040406.0000000000000
-0.750000 21040407.0000000000000
-1.050000 21040408.0000000000000
-1.350000 21040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 21050506
+1 0 0 0 0 5 5 1 21050507
+1 0 0 0 0 5 5 2 21050502
+1 0 0 0 0 5 5 3 21050503
+1 0 0 0 0 5 5 4 21050504
+1 0 0 0 0 5 5 5 21050505
+1 0 0 0 0 5 5 6 21050506
+1 0 0 0 0 5 5 7 21050507
+1 0 0 0 0 5 5 8 21050502
+1 0 0 0 0 5 5 9 21050503
+
-"Time = 1.000000
--1.350000 21040406.0000000000000
--1.050000 21040407.0000000000000
--0.750000 21040402.0000000000000
--0.450000 21040403.0000000000000
--0.150000 21040404.0000000000000
-0.150000 21040405.0000000000000
-0.450000 21040406.0000000000000
-0.750000 21040407.0000000000000
-1.050000 21040402.0000000000000
-1.350000 21040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/txy.xl b/CarpetAttic/Cart3dTest/test/periodic-z/txy.xl
index d6312820e..c0a04db3d 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/txy.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/txy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy x (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 22000505
+0 0 0 0 0 1 5 5 22010505
+0 0 0 0 0 2 5 5 22020505
+0 0 0 0 0 3 5 5 22030505
+0 0 0 0 0 4 5 5 22040505
+0 0 0 0 0 5 5 5 22050505
+0 0 0 0 0 6 5 5 22060505
+0 0 0 0 0 7 5 5 22070505
+0 0 0 0 0 8 5 5 22080505
+0 0 0 0 0 9 5 5 22090505
-"Time = 0.000000
--1.350000 22000404.0000000000000
--1.050000 22010404.0000000000000
--0.750000 22020404.0000000000000
--0.450000 22030404.0000000000000
--0.150000 22040404.0000000000000
-0.150000 22050404.0000000000000
-0.450000 22060404.0000000000000
-0.750000 22070404.0000000000000
-1.050000 22080404.0000000000000
-1.350000 22090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 22000505
+1 0 0 0 0 1 5 5 22010505
+1 0 0 0 0 2 5 5 22020505
+1 0 0 0 0 3 5 5 22030505
+1 0 0 0 0 4 5 5 22040505
+1 0 0 0 0 5 5 5 22050505
+1 0 0 0 0 6 5 5 22060505
+1 0 0 0 0 7 5 5 22070505
+1 0 0 0 0 8 5 5 22080505
+1 0 0 0 0 9 5 5 22090505
+
-"Time = 1.000000
--1.350000 22000404.0000000000000
--1.050000 22010404.0000000000000
--0.750000 22020404.0000000000000
--0.450000 22030404.0000000000000
--0.150000 22040404.0000000000000
-0.150000 22050404.0000000000000
-0.450000 22060404.0000000000000
-0.750000 22070404.0000000000000
-1.050000 22080404.0000000000000
-1.350000 22090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/txy.yl b/CarpetAttic/Cart3dTest/test/periodic-z/txy.yl
index bacfdde62..676739e59 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/txy.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/txy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy y (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 22050005
+0 0 0 0 0 5 1 5 22050105
+0 0 0 0 0 5 2 5 22050205
+0 0 0 0 0 5 3 5 22050305
+0 0 0 0 0 5 4 5 22050405
+0 0 0 0 0 5 5 5 22050505
+0 0 0 0 0 5 6 5 22050605
+0 0 0 0 0 5 7 5 22050705
+0 0 0 0 0 5 8 5 22050805
+0 0 0 0 0 5 9 5 22050905
-"Time = 0.000000
--1.350000 22040004.0000000000000
--1.050000 22040104.0000000000000
--0.750000 22040204.0000000000000
--0.450000 22040304.0000000000000
--0.150000 22040404.0000000000000
-0.150000 22040504.0000000000000
-0.450000 22040604.0000000000000
-0.750000 22040704.0000000000000
-1.050000 22040804.0000000000000
-1.350000 22040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 22050005
+1 0 0 0 0 5 1 5 22050105
+1 0 0 0 0 5 2 5 22050205
+1 0 0 0 0 5 3 5 22050305
+1 0 0 0 0 5 4 5 22050405
+1 0 0 0 0 5 5 5 22050505
+1 0 0 0 0 5 6 5 22050605
+1 0 0 0 0 5 7 5 22050705
+1 0 0 0 0 5 8 5 22050805
+1 0 0 0 0 5 9 5 22050905
+
-"Time = 1.000000
--1.350000 22040004.0000000000000
--1.050000 22040104.0000000000000
--0.750000 22040204.0000000000000
--0.450000 22040304.0000000000000
--0.150000 22040404.0000000000000
-0.150000 22040504.0000000000000
-0.450000 22040604.0000000000000
-0.750000 22040704.0000000000000
-1.050000 22040804.0000000000000
-1.350000 22040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/txy.zl b/CarpetAttic/Cart3dTest/test/periodic-z/txy.zl
index b33c5be11..b517ac253 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/txy.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/txy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy z (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 22050500
+0 0 0 0 0 5 5 1 22050501
+0 0 0 0 0 5 5 2 22050502
+0 0 0 0 0 5 5 3 22050503
+0 0 0 0 0 5 5 4 22050504
+0 0 0 0 0 5 5 5 22050505
+0 0 0 0 0 5 5 6 22050506
+0 0 0 0 0 5 5 7 22050507
+0 0 0 0 0 5 5 8 22050508
+0 0 0 0 0 5 5 9 22050509
-"Time = 0.000000
--1.350000 22040400.0000000000000
--1.050000 22040401.0000000000000
--0.750000 22040402.0000000000000
--0.450000 22040403.0000000000000
--0.150000 22040404.0000000000000
-0.150000 22040405.0000000000000
-0.450000 22040406.0000000000000
-0.750000 22040407.0000000000000
-1.050000 22040408.0000000000000
-1.350000 22040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 22050506
+1 0 0 0 0 5 5 1 22050507
+1 0 0 0 0 5 5 2 22050502
+1 0 0 0 0 5 5 3 22050503
+1 0 0 0 0 5 5 4 22050504
+1 0 0 0 0 5 5 5 22050505
+1 0 0 0 0 5 5 6 22050506
+1 0 0 0 0 5 5 7 22050507
+1 0 0 0 0 5 5 8 22050502
+1 0 0 0 0 5 5 9 22050503
+
-"Time = 1.000000
--1.350000 22040406.0000000000000
--1.050000 22040407.0000000000000
--0.750000 22040402.0000000000000
--0.450000 22040403.0000000000000
--0.150000 22040404.0000000000000
-0.150000 22040405.0000000000000
-0.450000 22040406.0000000000000
-0.750000 22040407.0000000000000
-1.050000 22040402.0000000000000
-1.350000 22040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/txz.xl b/CarpetAttic/Cart3dTest/test/periodic-z/txz.xl
index ef2bcc682..ef056f783 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/txz.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/txz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz x (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 23000505
+0 0 0 0 0 1 5 5 23010505
+0 0 0 0 0 2 5 5 23020505
+0 0 0 0 0 3 5 5 23030505
+0 0 0 0 0 4 5 5 23040505
+0 0 0 0 0 5 5 5 23050505
+0 0 0 0 0 6 5 5 23060505
+0 0 0 0 0 7 5 5 23070505
+0 0 0 0 0 8 5 5 23080505
+0 0 0 0 0 9 5 5 23090505
-"Time = 0.000000
--1.350000 23000404.0000000000000
--1.050000 23010404.0000000000000
--0.750000 23020404.0000000000000
--0.450000 23030404.0000000000000
--0.150000 23040404.0000000000000
-0.150000 23050404.0000000000000
-0.450000 23060404.0000000000000
-0.750000 23070404.0000000000000
-1.050000 23080404.0000000000000
-1.350000 23090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 23000505
+1 0 0 0 0 1 5 5 23010505
+1 0 0 0 0 2 5 5 23020505
+1 0 0 0 0 3 5 5 23030505
+1 0 0 0 0 4 5 5 23040505
+1 0 0 0 0 5 5 5 23050505
+1 0 0 0 0 6 5 5 23060505
+1 0 0 0 0 7 5 5 23070505
+1 0 0 0 0 8 5 5 23080505
+1 0 0 0 0 9 5 5 23090505
+
-"Time = 1.000000
--1.350000 23000404.0000000000000
--1.050000 23010404.0000000000000
--0.750000 23020404.0000000000000
--0.450000 23030404.0000000000000
--0.150000 23040404.0000000000000
-0.150000 23050404.0000000000000
-0.450000 23060404.0000000000000
-0.750000 23070404.0000000000000
-1.050000 23080404.0000000000000
-1.350000 23090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/txz.yl b/CarpetAttic/Cart3dTest/test/periodic-z/txz.yl
index f3da09742..6e249be2d 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/txz.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/txz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz y (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 23050005
+0 0 0 0 0 5 1 5 23050105
+0 0 0 0 0 5 2 5 23050205
+0 0 0 0 0 5 3 5 23050305
+0 0 0 0 0 5 4 5 23050405
+0 0 0 0 0 5 5 5 23050505
+0 0 0 0 0 5 6 5 23050605
+0 0 0 0 0 5 7 5 23050705
+0 0 0 0 0 5 8 5 23050805
+0 0 0 0 0 5 9 5 23050905
-"Time = 0.000000
--1.350000 23040004.0000000000000
--1.050000 23040104.0000000000000
--0.750000 23040204.0000000000000
--0.450000 23040304.0000000000000
--0.150000 23040404.0000000000000
-0.150000 23040504.0000000000000
-0.450000 23040604.0000000000000
-0.750000 23040704.0000000000000
-1.050000 23040804.0000000000000
-1.350000 23040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 23050005
+1 0 0 0 0 5 1 5 23050105
+1 0 0 0 0 5 2 5 23050205
+1 0 0 0 0 5 3 5 23050305
+1 0 0 0 0 5 4 5 23050405
+1 0 0 0 0 5 5 5 23050505
+1 0 0 0 0 5 6 5 23050605
+1 0 0 0 0 5 7 5 23050705
+1 0 0 0 0 5 8 5 23050805
+1 0 0 0 0 5 9 5 23050905
+
-"Time = 1.000000
--1.350000 23040004.0000000000000
--1.050000 23040104.0000000000000
--0.750000 23040204.0000000000000
--0.450000 23040304.0000000000000
--0.150000 23040404.0000000000000
-0.150000 23040504.0000000000000
-0.450000 23040604.0000000000000
-0.750000 23040704.0000000000000
-1.050000 23040804.0000000000000
-1.350000 23040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/txz.zl b/CarpetAttic/Cart3dTest/test/periodic-z/txz.zl
index 5c52ae1d2..cac4ebe2d 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/txz.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/txz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz z (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 23050500
+0 0 0 0 0 5 5 1 23050501
+0 0 0 0 0 5 5 2 23050502
+0 0 0 0 0 5 5 3 23050503
+0 0 0 0 0 5 5 4 23050504
+0 0 0 0 0 5 5 5 23050505
+0 0 0 0 0 5 5 6 23050506
+0 0 0 0 0 5 5 7 23050507
+0 0 0 0 0 5 5 8 23050508
+0 0 0 0 0 5 5 9 23050509
-"Time = 0.000000
--1.350000 23040400.0000000000000
--1.050000 23040401.0000000000000
--0.750000 23040402.0000000000000
--0.450000 23040403.0000000000000
--0.150000 23040404.0000000000000
-0.150000 23040405.0000000000000
-0.450000 23040406.0000000000000
-0.750000 23040407.0000000000000
-1.050000 23040408.0000000000000
-1.350000 23040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 23050506
+1 0 0 0 0 5 5 1 23050507
+1 0 0 0 0 5 5 2 23050502
+1 0 0 0 0 5 5 3 23050503
+1 0 0 0 0 5 5 4 23050504
+1 0 0 0 0 5 5 5 23050505
+1 0 0 0 0 5 5 6 23050506
+1 0 0 0 0 5 5 7 23050507
+1 0 0 0 0 5 5 8 23050502
+1 0 0 0 0 5 5 9 23050503
+
-"Time = 1.000000
--1.350000 23040406.0000000000000
--1.050000 23040407.0000000000000
--0.750000 23040402.0000000000000
--0.450000 23040403.0000000000000
--0.150000 23040404.0000000000000
-0.150000 23040405.0000000000000
-0.450000 23040406.0000000000000
-0.750000 23040407.0000000000000
-1.050000 23040402.0000000000000
-1.350000 23040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/tyy.xl b/CarpetAttic/Cart3dTest/test/periodic-z/tyy.xl
index 6a34694eb..6a8ea71c4 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/tyy.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/tyy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy x (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 24000505
+0 0 0 0 0 1 5 5 24010505
+0 0 0 0 0 2 5 5 24020505
+0 0 0 0 0 3 5 5 24030505
+0 0 0 0 0 4 5 5 24040505
+0 0 0 0 0 5 5 5 24050505
+0 0 0 0 0 6 5 5 24060505
+0 0 0 0 0 7 5 5 24070505
+0 0 0 0 0 8 5 5 24080505
+0 0 0 0 0 9 5 5 24090505
-"Time = 0.000000
--1.350000 24000404.0000000000000
--1.050000 24010404.0000000000000
--0.750000 24020404.0000000000000
--0.450000 24030404.0000000000000
--0.150000 24040404.0000000000000
-0.150000 24050404.0000000000000
-0.450000 24060404.0000000000000
-0.750000 24070404.0000000000000
-1.050000 24080404.0000000000000
-1.350000 24090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 24000505
+1 0 0 0 0 1 5 5 24010505
+1 0 0 0 0 2 5 5 24020505
+1 0 0 0 0 3 5 5 24030505
+1 0 0 0 0 4 5 5 24040505
+1 0 0 0 0 5 5 5 24050505
+1 0 0 0 0 6 5 5 24060505
+1 0 0 0 0 7 5 5 24070505
+1 0 0 0 0 8 5 5 24080505
+1 0 0 0 0 9 5 5 24090505
+
-"Time = 1.000000
--1.350000 24000404.0000000000000
--1.050000 24010404.0000000000000
--0.750000 24020404.0000000000000
--0.450000 24030404.0000000000000
--0.150000 24040404.0000000000000
-0.150000 24050404.0000000000000
-0.450000 24060404.0000000000000
-0.750000 24070404.0000000000000
-1.050000 24080404.0000000000000
-1.350000 24090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/tyy.yl b/CarpetAttic/Cart3dTest/test/periodic-z/tyy.yl
index fe192d2e1..e84597fa8 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/tyy.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/tyy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy y (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 24050005
+0 0 0 0 0 5 1 5 24050105
+0 0 0 0 0 5 2 5 24050205
+0 0 0 0 0 5 3 5 24050305
+0 0 0 0 0 5 4 5 24050405
+0 0 0 0 0 5 5 5 24050505
+0 0 0 0 0 5 6 5 24050605
+0 0 0 0 0 5 7 5 24050705
+0 0 0 0 0 5 8 5 24050805
+0 0 0 0 0 5 9 5 24050905
-"Time = 0.000000
--1.350000 24040004.0000000000000
--1.050000 24040104.0000000000000
--0.750000 24040204.0000000000000
--0.450000 24040304.0000000000000
--0.150000 24040404.0000000000000
-0.150000 24040504.0000000000000
-0.450000 24040604.0000000000000
-0.750000 24040704.0000000000000
-1.050000 24040804.0000000000000
-1.350000 24040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 24050005
+1 0 0 0 0 5 1 5 24050105
+1 0 0 0 0 5 2 5 24050205
+1 0 0 0 0 5 3 5 24050305
+1 0 0 0 0 5 4 5 24050405
+1 0 0 0 0 5 5 5 24050505
+1 0 0 0 0 5 6 5 24050605
+1 0 0 0 0 5 7 5 24050705
+1 0 0 0 0 5 8 5 24050805
+1 0 0 0 0 5 9 5 24050905
+
-"Time = 1.000000
--1.350000 24040004.0000000000000
--1.050000 24040104.0000000000000
--0.750000 24040204.0000000000000
--0.450000 24040304.0000000000000
--0.150000 24040404.0000000000000
-0.150000 24040504.0000000000000
-0.450000 24040604.0000000000000
-0.750000 24040704.0000000000000
-1.050000 24040804.0000000000000
-1.350000 24040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/tyy.zl b/CarpetAttic/Cart3dTest/test/periodic-z/tyy.zl
index 5337648f6..0142d96f9 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/tyy.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/tyy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy z (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 24050500
+0 0 0 0 0 5 5 1 24050501
+0 0 0 0 0 5 5 2 24050502
+0 0 0 0 0 5 5 3 24050503
+0 0 0 0 0 5 5 4 24050504
+0 0 0 0 0 5 5 5 24050505
+0 0 0 0 0 5 5 6 24050506
+0 0 0 0 0 5 5 7 24050507
+0 0 0 0 0 5 5 8 24050508
+0 0 0 0 0 5 5 9 24050509
-"Time = 0.000000
--1.350000 24040400.0000000000000
--1.050000 24040401.0000000000000
--0.750000 24040402.0000000000000
--0.450000 24040403.0000000000000
--0.150000 24040404.0000000000000
-0.150000 24040405.0000000000000
-0.450000 24040406.0000000000000
-0.750000 24040407.0000000000000
-1.050000 24040408.0000000000000
-1.350000 24040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 24050506
+1 0 0 0 0 5 5 1 24050507
+1 0 0 0 0 5 5 2 24050502
+1 0 0 0 0 5 5 3 24050503
+1 0 0 0 0 5 5 4 24050504
+1 0 0 0 0 5 5 5 24050505
+1 0 0 0 0 5 5 6 24050506
+1 0 0 0 0 5 5 7 24050507
+1 0 0 0 0 5 5 8 24050502
+1 0 0 0 0 5 5 9 24050503
+
-"Time = 1.000000
--1.350000 24040406.0000000000000
--1.050000 24040407.0000000000000
--0.750000 24040402.0000000000000
--0.450000 24040403.0000000000000
--0.150000 24040404.0000000000000
-0.150000 24040405.0000000000000
-0.450000 24040406.0000000000000
-0.750000 24040407.0000000000000
-1.050000 24040402.0000000000000
-1.350000 24040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/tyz.xl b/CarpetAttic/Cart3dTest/test/periodic-z/tyz.xl
index eceab34fe..011e5ce29 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/tyz.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/tyz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz x (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 25000505
+0 0 0 0 0 1 5 5 25010505
+0 0 0 0 0 2 5 5 25020505
+0 0 0 0 0 3 5 5 25030505
+0 0 0 0 0 4 5 5 25040505
+0 0 0 0 0 5 5 5 25050505
+0 0 0 0 0 6 5 5 25060505
+0 0 0 0 0 7 5 5 25070505
+0 0 0 0 0 8 5 5 25080505
+0 0 0 0 0 9 5 5 25090505
-"Time = 0.000000
--1.350000 25000404.0000000000000
--1.050000 25010404.0000000000000
--0.750000 25020404.0000000000000
--0.450000 25030404.0000000000000
--0.150000 25040404.0000000000000
-0.150000 25050404.0000000000000
-0.450000 25060404.0000000000000
-0.750000 25070404.0000000000000
-1.050000 25080404.0000000000000
-1.350000 25090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 25000505
+1 0 0 0 0 1 5 5 25010505
+1 0 0 0 0 2 5 5 25020505
+1 0 0 0 0 3 5 5 25030505
+1 0 0 0 0 4 5 5 25040505
+1 0 0 0 0 5 5 5 25050505
+1 0 0 0 0 6 5 5 25060505
+1 0 0 0 0 7 5 5 25070505
+1 0 0 0 0 8 5 5 25080505
+1 0 0 0 0 9 5 5 25090505
+
-"Time = 1.000000
--1.350000 25000404.0000000000000
--1.050000 25010404.0000000000000
--0.750000 25020404.0000000000000
--0.450000 25030404.0000000000000
--0.150000 25040404.0000000000000
-0.150000 25050404.0000000000000
-0.450000 25060404.0000000000000
-0.750000 25070404.0000000000000
-1.050000 25080404.0000000000000
-1.350000 25090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/tyz.yl b/CarpetAttic/Cart3dTest/test/periodic-z/tyz.yl
index 4eef9c4b9..68ca06705 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/tyz.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/tyz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz y (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 25050005
+0 0 0 0 0 5 1 5 25050105
+0 0 0 0 0 5 2 5 25050205
+0 0 0 0 0 5 3 5 25050305
+0 0 0 0 0 5 4 5 25050405
+0 0 0 0 0 5 5 5 25050505
+0 0 0 0 0 5 6 5 25050605
+0 0 0 0 0 5 7 5 25050705
+0 0 0 0 0 5 8 5 25050805
+0 0 0 0 0 5 9 5 25050905
-"Time = 0.000000
--1.350000 25040004.0000000000000
--1.050000 25040104.0000000000000
--0.750000 25040204.0000000000000
--0.450000 25040304.0000000000000
--0.150000 25040404.0000000000000
-0.150000 25040504.0000000000000
-0.450000 25040604.0000000000000
-0.750000 25040704.0000000000000
-1.050000 25040804.0000000000000
-1.350000 25040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 25050005
+1 0 0 0 0 5 1 5 25050105
+1 0 0 0 0 5 2 5 25050205
+1 0 0 0 0 5 3 5 25050305
+1 0 0 0 0 5 4 5 25050405
+1 0 0 0 0 5 5 5 25050505
+1 0 0 0 0 5 6 5 25050605
+1 0 0 0 0 5 7 5 25050705
+1 0 0 0 0 5 8 5 25050805
+1 0 0 0 0 5 9 5 25050905
+
-"Time = 1.000000
--1.350000 25040004.0000000000000
--1.050000 25040104.0000000000000
--0.750000 25040204.0000000000000
--0.450000 25040304.0000000000000
--0.150000 25040404.0000000000000
-0.150000 25040504.0000000000000
-0.450000 25040604.0000000000000
-0.750000 25040704.0000000000000
-1.050000 25040804.0000000000000
-1.350000 25040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/tyz.zl b/CarpetAttic/Cart3dTest/test/periodic-z/tyz.zl
index 399c71fd0..2141b37d3 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/tyz.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/tyz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz z (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 25050500
+0 0 0 0 0 5 5 1 25050501
+0 0 0 0 0 5 5 2 25050502
+0 0 0 0 0 5 5 3 25050503
+0 0 0 0 0 5 5 4 25050504
+0 0 0 0 0 5 5 5 25050505
+0 0 0 0 0 5 5 6 25050506
+0 0 0 0 0 5 5 7 25050507
+0 0 0 0 0 5 5 8 25050508
+0 0 0 0 0 5 5 9 25050509
-"Time = 0.000000
--1.350000 25040400.0000000000000
--1.050000 25040401.0000000000000
--0.750000 25040402.0000000000000
--0.450000 25040403.0000000000000
--0.150000 25040404.0000000000000
-0.150000 25040405.0000000000000
-0.450000 25040406.0000000000000
-0.750000 25040407.0000000000000
-1.050000 25040408.0000000000000
-1.350000 25040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 25050506
+1 0 0 0 0 5 5 1 25050507
+1 0 0 0 0 5 5 2 25050502
+1 0 0 0 0 5 5 3 25050503
+1 0 0 0 0 5 5 4 25050504
+1 0 0 0 0 5 5 5 25050505
+1 0 0 0 0 5 5 6 25050506
+1 0 0 0 0 5 5 7 25050507
+1 0 0 0 0 5 5 8 25050502
+1 0 0 0 0 5 5 9 25050503
+
-"Time = 1.000000
--1.350000 25040406.0000000000000
--1.050000 25040407.0000000000000
--0.750000 25040402.0000000000000
--0.450000 25040403.0000000000000
--0.150000 25040404.0000000000000
-0.150000 25040405.0000000000000
-0.450000 25040406.0000000000000
-0.750000 25040407.0000000000000
-1.050000 25040402.0000000000000
-1.350000 25040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/tzz.xl b/CarpetAttic/Cart3dTest/test/periodic-z/tzz.xl
index 5e310afe3..0035c4de3 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/tzz.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/tzz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz x (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 26000505
+0 0 0 0 0 1 5 5 26010505
+0 0 0 0 0 2 5 5 26020505
+0 0 0 0 0 3 5 5 26030505
+0 0 0 0 0 4 5 5 26040505
+0 0 0 0 0 5 5 5 26050505
+0 0 0 0 0 6 5 5 26060505
+0 0 0 0 0 7 5 5 26070505
+0 0 0 0 0 8 5 5 26080505
+0 0 0 0 0 9 5 5 26090505
-"Time = 0.000000
--1.350000 26000404.0000000000000
--1.050000 26010404.0000000000000
--0.750000 26020404.0000000000000
--0.450000 26030404.0000000000000
--0.150000 26040404.0000000000000
-0.150000 26050404.0000000000000
-0.450000 26060404.0000000000000
-0.750000 26070404.0000000000000
-1.050000 26080404.0000000000000
-1.350000 26090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 26000505
+1 0 0 0 0 1 5 5 26010505
+1 0 0 0 0 2 5 5 26020505
+1 0 0 0 0 3 5 5 26030505
+1 0 0 0 0 4 5 5 26040505
+1 0 0 0 0 5 5 5 26050505
+1 0 0 0 0 6 5 5 26060505
+1 0 0 0 0 7 5 5 26070505
+1 0 0 0 0 8 5 5 26080505
+1 0 0 0 0 9 5 5 26090505
+
-"Time = 1.000000
--1.350000 26000404.0000000000000
--1.050000 26010404.0000000000000
--0.750000 26020404.0000000000000
--0.450000 26030404.0000000000000
--0.150000 26040404.0000000000000
-0.150000 26050404.0000000000000
-0.450000 26060404.0000000000000
-0.750000 26070404.0000000000000
-1.050000 26080404.0000000000000
-1.350000 26090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/tzz.yl b/CarpetAttic/Cart3dTest/test/periodic-z/tzz.yl
index 68b18665a..88ab8faba 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/tzz.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/tzz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz y (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 26050005
+0 0 0 0 0 5 1 5 26050105
+0 0 0 0 0 5 2 5 26050205
+0 0 0 0 0 5 3 5 26050305
+0 0 0 0 0 5 4 5 26050405
+0 0 0 0 0 5 5 5 26050505
+0 0 0 0 0 5 6 5 26050605
+0 0 0 0 0 5 7 5 26050705
+0 0 0 0 0 5 8 5 26050805
+0 0 0 0 0 5 9 5 26050905
-"Time = 0.000000
--1.350000 26040004.0000000000000
--1.050000 26040104.0000000000000
--0.750000 26040204.0000000000000
--0.450000 26040304.0000000000000
--0.150000 26040404.0000000000000
-0.150000 26040504.0000000000000
-0.450000 26040604.0000000000000
-0.750000 26040704.0000000000000
-1.050000 26040804.0000000000000
-1.350000 26040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 26050005
+1 0 0 0 0 5 1 5 26050105
+1 0 0 0 0 5 2 5 26050205
+1 0 0 0 0 5 3 5 26050305
+1 0 0 0 0 5 4 5 26050405
+1 0 0 0 0 5 5 5 26050505
+1 0 0 0 0 5 6 5 26050605
+1 0 0 0 0 5 7 5 26050705
+1 0 0 0 0 5 8 5 26050805
+1 0 0 0 0 5 9 5 26050905
+
-"Time = 1.000000
--1.350000 26040004.0000000000000
--1.050000 26040104.0000000000000
--0.750000 26040204.0000000000000
--0.450000 26040304.0000000000000
--0.150000 26040404.0000000000000
-0.150000 26040504.0000000000000
-0.450000 26040604.0000000000000
-0.750000 26040704.0000000000000
-1.050000 26040804.0000000000000
-1.350000 26040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/tzz.zl b/CarpetAttic/Cart3dTest/test/periodic-z/tzz.zl
index 14a94781a..7687b70da 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/tzz.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/tzz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz z (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 26050500
+0 0 0 0 0 5 5 1 26050501
+0 0 0 0 0 5 5 2 26050502
+0 0 0 0 0 5 5 3 26050503
+0 0 0 0 0 5 5 4 26050504
+0 0 0 0 0 5 5 5 26050505
+0 0 0 0 0 5 5 6 26050506
+0 0 0 0 0 5 5 7 26050507
+0 0 0 0 0 5 5 8 26050508
+0 0 0 0 0 5 5 9 26050509
-"Time = 0.000000
--1.350000 26040400.0000000000000
--1.050000 26040401.0000000000000
--0.750000 26040402.0000000000000
--0.450000 26040403.0000000000000
--0.150000 26040404.0000000000000
-0.150000 26040405.0000000000000
-0.450000 26040406.0000000000000
-0.750000 26040407.0000000000000
-1.050000 26040408.0000000000000
-1.350000 26040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 26050506
+1 0 0 0 0 5 5 1 26050507
+1 0 0 0 0 5 5 2 26050502
+1 0 0 0 0 5 5 3 26050503
+1 0 0 0 0 5 5 4 26050504
+1 0 0 0 0 5 5 5 26050505
+1 0 0 0 0 5 5 6 26050506
+1 0 0 0 0 5 5 7 26050507
+1 0 0 0 0 5 5 8 26050502
+1 0 0 0 0 5 5 9 26050503
+
-"Time = 1.000000
--1.350000 26040406.0000000000000
--1.050000 26040407.0000000000000
--0.750000 26040402.0000000000000
--0.450000 26040403.0000000000000
--0.150000 26040404.0000000000000
-0.150000 26040405.0000000000000
-0.450000 26040406.0000000000000
-0.750000 26040407.0000000000000
-1.050000 26040402.0000000000000
-1.350000 26040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/vx.xl b/CarpetAttic/Cart3dTest/test/periodic-z/vx.xl
index 444a4bcde..d4dafe57f 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/vx.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/vx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx x (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 11000505
+0 0 0 0 0 1 5 5 11010505
+0 0 0 0 0 2 5 5 11020505
+0 0 0 0 0 3 5 5 11030505
+0 0 0 0 0 4 5 5 11040505
+0 0 0 0 0 5 5 5 11050505
+0 0 0 0 0 6 5 5 11060505
+0 0 0 0 0 7 5 5 11070505
+0 0 0 0 0 8 5 5 11080505
+0 0 0 0 0 9 5 5 11090505
-"Time = 0.000000
--1.350000 11000404.0000000000000
--1.050000 11010404.0000000000000
--0.750000 11020404.0000000000000
--0.450000 11030404.0000000000000
--0.150000 11040404.0000000000000
-0.150000 11050404.0000000000000
-0.450000 11060404.0000000000000
-0.750000 11070404.0000000000000
-1.050000 11080404.0000000000000
-1.350000 11090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 11000505
+1 0 0 0 0 1 5 5 11010505
+1 0 0 0 0 2 5 5 11020505
+1 0 0 0 0 3 5 5 11030505
+1 0 0 0 0 4 5 5 11040505
+1 0 0 0 0 5 5 5 11050505
+1 0 0 0 0 6 5 5 11060505
+1 0 0 0 0 7 5 5 11070505
+1 0 0 0 0 8 5 5 11080505
+1 0 0 0 0 9 5 5 11090505
+
-"Time = 1.000000
--1.350000 11000404.0000000000000
--1.050000 11010404.0000000000000
--0.750000 11020404.0000000000000
--0.450000 11030404.0000000000000
--0.150000 11040404.0000000000000
-0.150000 11050404.0000000000000
-0.450000 11060404.0000000000000
-0.750000 11070404.0000000000000
-1.050000 11080404.0000000000000
-1.350000 11090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/vx.yl b/CarpetAttic/Cart3dTest/test/periodic-z/vx.yl
index b43e2246a..198564f76 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/vx.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/vx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx y (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 11050005
+0 0 0 0 0 5 1 5 11050105
+0 0 0 0 0 5 2 5 11050205
+0 0 0 0 0 5 3 5 11050305
+0 0 0 0 0 5 4 5 11050405
+0 0 0 0 0 5 5 5 11050505
+0 0 0 0 0 5 6 5 11050605
+0 0 0 0 0 5 7 5 11050705
+0 0 0 0 0 5 8 5 11050805
+0 0 0 0 0 5 9 5 11050905
-"Time = 0.000000
--1.350000 11040004.0000000000000
--1.050000 11040104.0000000000000
--0.750000 11040204.0000000000000
--0.450000 11040304.0000000000000
--0.150000 11040404.0000000000000
-0.150000 11040504.0000000000000
-0.450000 11040604.0000000000000
-0.750000 11040704.0000000000000
-1.050000 11040804.0000000000000
-1.350000 11040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 11050005
+1 0 0 0 0 5 1 5 11050105
+1 0 0 0 0 5 2 5 11050205
+1 0 0 0 0 5 3 5 11050305
+1 0 0 0 0 5 4 5 11050405
+1 0 0 0 0 5 5 5 11050505
+1 0 0 0 0 5 6 5 11050605
+1 0 0 0 0 5 7 5 11050705
+1 0 0 0 0 5 8 5 11050805
+1 0 0 0 0 5 9 5 11050905
+
-"Time = 1.000000
--1.350000 11040004.0000000000000
--1.050000 11040104.0000000000000
--0.750000 11040204.0000000000000
--0.450000 11040304.0000000000000
--0.150000 11040404.0000000000000
-0.150000 11040504.0000000000000
-0.450000 11040604.0000000000000
-0.750000 11040704.0000000000000
-1.050000 11040804.0000000000000
-1.350000 11040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/vx.zl b/CarpetAttic/Cart3dTest/test/periodic-z/vx.zl
index aa01c1e8e..233bb7a3d 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/vx.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/vx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx z (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 11050500
+0 0 0 0 0 5 5 1 11050501
+0 0 0 0 0 5 5 2 11050502
+0 0 0 0 0 5 5 3 11050503
+0 0 0 0 0 5 5 4 11050504
+0 0 0 0 0 5 5 5 11050505
+0 0 0 0 0 5 5 6 11050506
+0 0 0 0 0 5 5 7 11050507
+0 0 0 0 0 5 5 8 11050508
+0 0 0 0 0 5 5 9 11050509
-"Time = 0.000000
--1.350000 11040400.0000000000000
--1.050000 11040401.0000000000000
--0.750000 11040402.0000000000000
--0.450000 11040403.0000000000000
--0.150000 11040404.0000000000000
-0.150000 11040405.0000000000000
-0.450000 11040406.0000000000000
-0.750000 11040407.0000000000000
-1.050000 11040408.0000000000000
-1.350000 11040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 11050506
+1 0 0 0 0 5 5 1 11050507
+1 0 0 0 0 5 5 2 11050502
+1 0 0 0 0 5 5 3 11050503
+1 0 0 0 0 5 5 4 11050504
+1 0 0 0 0 5 5 5 11050505
+1 0 0 0 0 5 5 6 11050506
+1 0 0 0 0 5 5 7 11050507
+1 0 0 0 0 5 5 8 11050502
+1 0 0 0 0 5 5 9 11050503
+
-"Time = 1.000000
--1.350000 11040406.0000000000000
--1.050000 11040407.0000000000000
--0.750000 11040402.0000000000000
--0.450000 11040403.0000000000000
--0.150000 11040404.0000000000000
-0.150000 11040405.0000000000000
-0.450000 11040406.0000000000000
-0.750000 11040407.0000000000000
-1.050000 11040402.0000000000000
-1.350000 11040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/vy.xl b/CarpetAttic/Cart3dTest/test/periodic-z/vy.xl
index 332f28267..487f382f4 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/vy.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/vy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy x (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 12000505
+0 0 0 0 0 1 5 5 12010505
+0 0 0 0 0 2 5 5 12020505
+0 0 0 0 0 3 5 5 12030505
+0 0 0 0 0 4 5 5 12040505
+0 0 0 0 0 5 5 5 12050505
+0 0 0 0 0 6 5 5 12060505
+0 0 0 0 0 7 5 5 12070505
+0 0 0 0 0 8 5 5 12080505
+0 0 0 0 0 9 5 5 12090505
-"Time = 0.000000
--1.350000 12000404.0000000000000
--1.050000 12010404.0000000000000
--0.750000 12020404.0000000000000
--0.450000 12030404.0000000000000
--0.150000 12040404.0000000000000
-0.150000 12050404.0000000000000
-0.450000 12060404.0000000000000
-0.750000 12070404.0000000000000
-1.050000 12080404.0000000000000
-1.350000 12090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 12000505
+1 0 0 0 0 1 5 5 12010505
+1 0 0 0 0 2 5 5 12020505
+1 0 0 0 0 3 5 5 12030505
+1 0 0 0 0 4 5 5 12040505
+1 0 0 0 0 5 5 5 12050505
+1 0 0 0 0 6 5 5 12060505
+1 0 0 0 0 7 5 5 12070505
+1 0 0 0 0 8 5 5 12080505
+1 0 0 0 0 9 5 5 12090505
+
-"Time = 1.000000
--1.350000 12000404.0000000000000
--1.050000 12010404.0000000000000
--0.750000 12020404.0000000000000
--0.450000 12030404.0000000000000
--0.150000 12040404.0000000000000
-0.150000 12050404.0000000000000
-0.450000 12060404.0000000000000
-0.750000 12070404.0000000000000
-1.050000 12080404.0000000000000
-1.350000 12090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/vy.yl b/CarpetAttic/Cart3dTest/test/periodic-z/vy.yl
index dd1f76078..47c58e06a 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/vy.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/vy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy y (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 12050005
+0 0 0 0 0 5 1 5 12050105
+0 0 0 0 0 5 2 5 12050205
+0 0 0 0 0 5 3 5 12050305
+0 0 0 0 0 5 4 5 12050405
+0 0 0 0 0 5 5 5 12050505
+0 0 0 0 0 5 6 5 12050605
+0 0 0 0 0 5 7 5 12050705
+0 0 0 0 0 5 8 5 12050805
+0 0 0 0 0 5 9 5 12050905
-"Time = 0.000000
--1.350000 12040004.0000000000000
--1.050000 12040104.0000000000000
--0.750000 12040204.0000000000000
--0.450000 12040304.0000000000000
--0.150000 12040404.0000000000000
-0.150000 12040504.0000000000000
-0.450000 12040604.0000000000000
-0.750000 12040704.0000000000000
-1.050000 12040804.0000000000000
-1.350000 12040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 12050005
+1 0 0 0 0 5 1 5 12050105
+1 0 0 0 0 5 2 5 12050205
+1 0 0 0 0 5 3 5 12050305
+1 0 0 0 0 5 4 5 12050405
+1 0 0 0 0 5 5 5 12050505
+1 0 0 0 0 5 6 5 12050605
+1 0 0 0 0 5 7 5 12050705
+1 0 0 0 0 5 8 5 12050805
+1 0 0 0 0 5 9 5 12050905
+
-"Time = 1.000000
--1.350000 12040004.0000000000000
--1.050000 12040104.0000000000000
--0.750000 12040204.0000000000000
--0.450000 12040304.0000000000000
--0.150000 12040404.0000000000000
-0.150000 12040504.0000000000000
-0.450000 12040604.0000000000000
-0.750000 12040704.0000000000000
-1.050000 12040804.0000000000000
-1.350000 12040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/vy.zl b/CarpetAttic/Cart3dTest/test/periodic-z/vy.zl
index 2b45a5477..9f158aa08 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/vy.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/vy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy z (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 12050500
+0 0 0 0 0 5 5 1 12050501
+0 0 0 0 0 5 5 2 12050502
+0 0 0 0 0 5 5 3 12050503
+0 0 0 0 0 5 5 4 12050504
+0 0 0 0 0 5 5 5 12050505
+0 0 0 0 0 5 5 6 12050506
+0 0 0 0 0 5 5 7 12050507
+0 0 0 0 0 5 5 8 12050508
+0 0 0 0 0 5 5 9 12050509
-"Time = 0.000000
--1.350000 12040400.0000000000000
--1.050000 12040401.0000000000000
--0.750000 12040402.0000000000000
--0.450000 12040403.0000000000000
--0.150000 12040404.0000000000000
-0.150000 12040405.0000000000000
-0.450000 12040406.0000000000000
-0.750000 12040407.0000000000000
-1.050000 12040408.0000000000000
-1.350000 12040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 12050506
+1 0 0 0 0 5 5 1 12050507
+1 0 0 0 0 5 5 2 12050502
+1 0 0 0 0 5 5 3 12050503
+1 0 0 0 0 5 5 4 12050504
+1 0 0 0 0 5 5 5 12050505
+1 0 0 0 0 5 5 6 12050506
+1 0 0 0 0 5 5 7 12050507
+1 0 0 0 0 5 5 8 12050502
+1 0 0 0 0 5 5 9 12050503
+
-"Time = 1.000000
--1.350000 12040406.0000000000000
--1.050000 12040407.0000000000000
--0.750000 12040402.0000000000000
--0.450000 12040403.0000000000000
--0.150000 12040404.0000000000000
-0.150000 12040405.0000000000000
-0.450000 12040406.0000000000000
-0.750000 12040407.0000000000000
-1.050000 12040402.0000000000000
-1.350000 12040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/vz.xl b/CarpetAttic/Cart3dTest/test/periodic-z/vz.xl
index 8ab106eea..7385d5001 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/vz.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/vz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz x (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 13000505
+0 0 0 0 0 1 5 5 13010505
+0 0 0 0 0 2 5 5 13020505
+0 0 0 0 0 3 5 5 13030505
+0 0 0 0 0 4 5 5 13040505
+0 0 0 0 0 5 5 5 13050505
+0 0 0 0 0 6 5 5 13060505
+0 0 0 0 0 7 5 5 13070505
+0 0 0 0 0 8 5 5 13080505
+0 0 0 0 0 9 5 5 13090505
-"Time = 0.000000
--1.350000 13000404.0000000000000
--1.050000 13010404.0000000000000
--0.750000 13020404.0000000000000
--0.450000 13030404.0000000000000
--0.150000 13040404.0000000000000
-0.150000 13050404.0000000000000
-0.450000 13060404.0000000000000
-0.750000 13070404.0000000000000
-1.050000 13080404.0000000000000
-1.350000 13090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 13000505
+1 0 0 0 0 1 5 5 13010505
+1 0 0 0 0 2 5 5 13020505
+1 0 0 0 0 3 5 5 13030505
+1 0 0 0 0 4 5 5 13040505
+1 0 0 0 0 5 5 5 13050505
+1 0 0 0 0 6 5 5 13060505
+1 0 0 0 0 7 5 5 13070505
+1 0 0 0 0 8 5 5 13080505
+1 0 0 0 0 9 5 5 13090505
+
-"Time = 1.000000
--1.350000 13000404.0000000000000
--1.050000 13010404.0000000000000
--0.750000 13020404.0000000000000
--0.450000 13030404.0000000000000
--0.150000 13040404.0000000000000
-0.150000 13050404.0000000000000
-0.450000 13060404.0000000000000
-0.750000 13070404.0000000000000
-1.050000 13080404.0000000000000
-1.350000 13090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/vz.yl b/CarpetAttic/Cart3dTest/test/periodic-z/vz.yl
index 4e5ac4add..b19d78d54 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/vz.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/vz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz y (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 13050005
+0 0 0 0 0 5 1 5 13050105
+0 0 0 0 0 5 2 5 13050205
+0 0 0 0 0 5 3 5 13050305
+0 0 0 0 0 5 4 5 13050405
+0 0 0 0 0 5 5 5 13050505
+0 0 0 0 0 5 6 5 13050605
+0 0 0 0 0 5 7 5 13050705
+0 0 0 0 0 5 8 5 13050805
+0 0 0 0 0 5 9 5 13050905
-"Time = 0.000000
--1.350000 13040004.0000000000000
--1.050000 13040104.0000000000000
--0.750000 13040204.0000000000000
--0.450000 13040304.0000000000000
--0.150000 13040404.0000000000000
-0.150000 13040504.0000000000000
-0.450000 13040604.0000000000000
-0.750000 13040704.0000000000000
-1.050000 13040804.0000000000000
-1.350000 13040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 13050005
+1 0 0 0 0 5 1 5 13050105
+1 0 0 0 0 5 2 5 13050205
+1 0 0 0 0 5 3 5 13050305
+1 0 0 0 0 5 4 5 13050405
+1 0 0 0 0 5 5 5 13050505
+1 0 0 0 0 5 6 5 13050605
+1 0 0 0 0 5 7 5 13050705
+1 0 0 0 0 5 8 5 13050805
+1 0 0 0 0 5 9 5 13050905
+
-"Time = 1.000000
--1.350000 13040004.0000000000000
--1.050000 13040104.0000000000000
--0.750000 13040204.0000000000000
--0.450000 13040304.0000000000000
--0.150000 13040404.0000000000000
-0.150000 13040504.0000000000000
-0.450000 13040604.0000000000000
-0.750000 13040704.0000000000000
-1.050000 13040804.0000000000000
-1.350000 13040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic-z/vz.zl b/CarpetAttic/Cart3dTest/test/periodic-z/vz.zl
index 08d43eff2..34c262e57 100644
--- a/CarpetAttic/Cart3dTest/test/periodic-z/vz.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic-z/vz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz z (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 13050500
+0 0 0 0 0 5 5 1 13050501
+0 0 0 0 0 5 5 2 13050502
+0 0 0 0 0 5 5 3 13050503
+0 0 0 0 0 5 5 4 13050504
+0 0 0 0 0 5 5 5 13050505
+0 0 0 0 0 5 5 6 13050506
+0 0 0 0 0 5 5 7 13050507
+0 0 0 0 0 5 5 8 13050508
+0 0 0 0 0 5 5 9 13050509
-"Time = 0.000000
--1.350000 13040400.0000000000000
--1.050000 13040401.0000000000000
--0.750000 13040402.0000000000000
--0.450000 13040403.0000000000000
--0.150000 13040404.0000000000000
-0.150000 13040405.0000000000000
-0.450000 13040406.0000000000000
-0.750000 13040407.0000000000000
-1.050000 13040408.0000000000000
-1.350000 13040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 13050506
+1 0 0 0 0 5 5 1 13050507
+1 0 0 0 0 5 5 2 13050502
+1 0 0 0 0 5 5 3 13050503
+1 0 0 0 0 5 5 4 13050504
+1 0 0 0 0 5 5 5 13050505
+1 0 0 0 0 5 5 6 13050506
+1 0 0 0 0 5 5 7 13050507
+1 0 0 0 0 5 5 8 13050502
+1 0 0 0 0 5 5 9 13050503
+
-"Time = 1.000000
--1.350000 13040406.0000000000000
--1.050000 13040407.0000000000000
--0.750000 13040402.0000000000000
--0.450000 13040403.0000000000000
--0.150000 13040404.0000000000000
-0.150000 13040405.0000000000000
-0.450000 13040406.0000000000000
-0.750000 13040407.0000000000000
-1.050000 13040402.0000000000000
-1.350000 13040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/ax.xl b/CarpetAttic/Cart3dTest/test/periodic/ax.xl
index 64fc2ce29..a6dd976ff 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/ax.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic/ax.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax x (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 31000505
+0 0 0 0 0 1 5 5 31010505
+0 0 0 0 0 2 5 5 31020505
+0 0 0 0 0 3 5 5 31030505
+0 0 0 0 0 4 5 5 31040505
+0 0 0 0 0 5 5 5 31050505
+0 0 0 0 0 6 5 5 31060505
+0 0 0 0 0 7 5 5 31070505
+0 0 0 0 0 8 5 5 31080505
+0 0 0 0 0 9 5 5 31090505
-"Time = 0.000000
--1.350000 31000404.0000000000000
--1.050000 31010404.0000000000000
--0.750000 31020404.0000000000000
--0.450000 31030404.0000000000000
--0.150000 31040404.0000000000000
-0.150000 31050404.0000000000000
-0.450000 31060404.0000000000000
-0.750000 31070404.0000000000000
-1.050000 31080404.0000000000000
-1.350000 31090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 31000505
+1 0 0 0 0 1 5 5 31010505
+1 0 0 0 0 2 5 5 31020505
+1 0 0 0 0 3 5 5 31030505
+1 0 0 0 0 4 5 5 31040505
+1 0 0 0 0 5 5 5 31050505
+1 0 0 0 0 6 5 5 31060505
+1 0 0 0 0 7 5 5 31070505
+1 0 0 0 0 8 5 5 31080505
+1 0 0 0 0 9 5 5 31090505
+
-"Time = 1.000000
--1.350000 31000404.0000000000000
--1.050000 31010404.0000000000000
--0.750000 31020404.0000000000000
--0.450000 31030404.0000000000000
--0.150000 31040404.0000000000000
-0.150000 31050404.0000000000000
-0.450000 31060404.0000000000000
-0.750000 31070404.0000000000000
-1.050000 31080404.0000000000000
-1.350000 31090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/ax.yl b/CarpetAttic/Cart3dTest/test/periodic/ax.yl
index b89ce60d3..dcb3173aa 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/ax.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic/ax.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax y (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 31050005
+0 0 0 0 0 5 1 5 31050105
+0 0 0 0 0 5 2 5 31050205
+0 0 0 0 0 5 3 5 31050305
+0 0 0 0 0 5 4 5 31050405
+0 0 0 0 0 5 5 5 31050505
+0 0 0 0 0 5 6 5 31050605
+0 0 0 0 0 5 7 5 31050705
+0 0 0 0 0 5 8 5 31050805
+0 0 0 0 0 5 9 5 31050905
-"Time = 0.000000
--1.350000 31040004.0000000000000
--1.050000 31040104.0000000000000
--0.750000 31040204.0000000000000
--0.450000 31040304.0000000000000
--0.150000 31040404.0000000000000
-0.150000 31040504.0000000000000
-0.450000 31040604.0000000000000
-0.750000 31040704.0000000000000
-1.050000 31040804.0000000000000
-1.350000 31040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 31050805
+1 0 0 0 0 5 1 5 31050105
+1 0 0 0 0 5 2 5 31050205
+1 0 0 0 0 5 3 5 31050305
+1 0 0 0 0 5 4 5 31050405
+1 0 0 0 0 5 5 5 31050505
+1 0 0 0 0 5 6 5 31050605
+1 0 0 0 0 5 7 5 31050705
+1 0 0 0 0 5 8 5 31050805
+1 0 0 0 0 5 9 5 31050105
+
-"Time = 1.000000
--1.350000 31040804.0000000000000
--1.050000 31040104.0000000000000
--0.750000 31040204.0000000000000
--0.450000 31040304.0000000000000
--0.150000 31040404.0000000000000
-0.150000 31040504.0000000000000
-0.450000 31040604.0000000000000
-0.750000 31040704.0000000000000
-1.050000 31040804.0000000000000
-1.350000 31040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/ax.zl b/CarpetAttic/Cart3dTest/test/periodic/ax.zl
index e0047661e..d8ddff9e5 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/ax.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic/ax.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax z (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 31050500
+0 0 0 0 0 5 5 1 31050501
+0 0 0 0 0 5 5 2 31050502
+0 0 0 0 0 5 5 3 31050503
+0 0 0 0 0 5 5 4 31050504
+0 0 0 0 0 5 5 5 31050505
+0 0 0 0 0 5 5 6 31050506
+0 0 0 0 0 5 5 7 31050507
+0 0 0 0 0 5 5 8 31050508
+0 0 0 0 0 5 5 9 31050509
-"Time = 0.000000
--1.350000 31040400.0000000000000
--1.050000 31040401.0000000000000
--0.750000 31040402.0000000000000
--0.450000 31040403.0000000000000
--0.150000 31040404.0000000000000
-0.150000 31040405.0000000000000
-0.450000 31040406.0000000000000
-0.750000 31040407.0000000000000
-1.050000 31040408.0000000000000
-1.350000 31040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 31050506
+1 0 0 0 0 5 5 1 31050507
+1 0 0 0 0 5 5 2 31050502
+1 0 0 0 0 5 5 3 31050503
+1 0 0 0 0 5 5 4 31050504
+1 0 0 0 0 5 5 5 31050505
+1 0 0 0 0 5 5 6 31050506
+1 0 0 0 0 5 5 7 31050507
+1 0 0 0 0 5 5 8 31050502
+1 0 0 0 0 5 5 9 31050503
+
-"Time = 1.000000
--1.350000 31040406.0000000000000
--1.050000 31040407.0000000000000
--0.750000 31040402.0000000000000
--0.450000 31040403.0000000000000
--0.150000 31040404.0000000000000
-0.150000 31040405.0000000000000
-0.450000 31040406.0000000000000
-0.750000 31040407.0000000000000
-1.050000 31040402.0000000000000
-1.350000 31040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/ay.xl b/CarpetAttic/Cart3dTest/test/periodic/ay.xl
index f7fa2388b..d98eb4ea0 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/ay.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic/ay.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay x (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 32000505
+0 0 0 0 0 1 5 5 32010505
+0 0 0 0 0 2 5 5 32020505
+0 0 0 0 0 3 5 5 32030505
+0 0 0 0 0 4 5 5 32040505
+0 0 0 0 0 5 5 5 32050505
+0 0 0 0 0 6 5 5 32060505
+0 0 0 0 0 7 5 5 32070505
+0 0 0 0 0 8 5 5 32080505
+0 0 0 0 0 9 5 5 32090505
-"Time = 0.000000
--1.350000 32000404.0000000000000
--1.050000 32010404.0000000000000
--0.750000 32020404.0000000000000
--0.450000 32030404.0000000000000
--0.150000 32040404.0000000000000
-0.150000 32050404.0000000000000
-0.450000 32060404.0000000000000
-0.750000 32070404.0000000000000
-1.050000 32080404.0000000000000
-1.350000 32090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 32000505
+1 0 0 0 0 1 5 5 32010505
+1 0 0 0 0 2 5 5 32020505
+1 0 0 0 0 3 5 5 32030505
+1 0 0 0 0 4 5 5 32040505
+1 0 0 0 0 5 5 5 32050505
+1 0 0 0 0 6 5 5 32060505
+1 0 0 0 0 7 5 5 32070505
+1 0 0 0 0 8 5 5 32080505
+1 0 0 0 0 9 5 5 32090505
+
-"Time = 1.000000
--1.350000 32000404.0000000000000
--1.050000 32010404.0000000000000
--0.750000 32020404.0000000000000
--0.450000 32030404.0000000000000
--0.150000 32040404.0000000000000
-0.150000 32050404.0000000000000
-0.450000 32060404.0000000000000
-0.750000 32070404.0000000000000
-1.050000 32080404.0000000000000
-1.350000 32090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/ay.yl b/CarpetAttic/Cart3dTest/test/periodic/ay.yl
index f4280c526..fdd881e3f 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/ay.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic/ay.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay y (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 32050005
+0 0 0 0 0 5 1 5 32050105
+0 0 0 0 0 5 2 5 32050205
+0 0 0 0 0 5 3 5 32050305
+0 0 0 0 0 5 4 5 32050405
+0 0 0 0 0 5 5 5 32050505
+0 0 0 0 0 5 6 5 32050605
+0 0 0 0 0 5 7 5 32050705
+0 0 0 0 0 5 8 5 32050805
+0 0 0 0 0 5 9 5 32050905
-"Time = 0.000000
--1.350000 32040004.0000000000000
--1.050000 32040104.0000000000000
--0.750000 32040204.0000000000000
--0.450000 32040304.0000000000000
--0.150000 32040404.0000000000000
-0.150000 32040504.0000000000000
-0.450000 32040604.0000000000000
-0.750000 32040704.0000000000000
-1.050000 32040804.0000000000000
-1.350000 32040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 32050805
+1 0 0 0 0 5 1 5 32050105
+1 0 0 0 0 5 2 5 32050205
+1 0 0 0 0 5 3 5 32050305
+1 0 0 0 0 5 4 5 32050405
+1 0 0 0 0 5 5 5 32050505
+1 0 0 0 0 5 6 5 32050605
+1 0 0 0 0 5 7 5 32050705
+1 0 0 0 0 5 8 5 32050805
+1 0 0 0 0 5 9 5 32050105
+
-"Time = 1.000000
--1.350000 32040804.0000000000000
--1.050000 32040104.0000000000000
--0.750000 32040204.0000000000000
--0.450000 32040304.0000000000000
--0.150000 32040404.0000000000000
-0.150000 32040504.0000000000000
-0.450000 32040604.0000000000000
-0.750000 32040704.0000000000000
-1.050000 32040804.0000000000000
-1.350000 32040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/ay.zl b/CarpetAttic/Cart3dTest/test/periodic/ay.zl
index 33e6321a7..fff87a090 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/ay.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic/ay.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay z (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 32050500
+0 0 0 0 0 5 5 1 32050501
+0 0 0 0 0 5 5 2 32050502
+0 0 0 0 0 5 5 3 32050503
+0 0 0 0 0 5 5 4 32050504
+0 0 0 0 0 5 5 5 32050505
+0 0 0 0 0 5 5 6 32050506
+0 0 0 0 0 5 5 7 32050507
+0 0 0 0 0 5 5 8 32050508
+0 0 0 0 0 5 5 9 32050509
-"Time = 0.000000
--1.350000 32040400.0000000000000
--1.050000 32040401.0000000000000
--0.750000 32040402.0000000000000
--0.450000 32040403.0000000000000
--0.150000 32040404.0000000000000
-0.150000 32040405.0000000000000
-0.450000 32040406.0000000000000
-0.750000 32040407.0000000000000
-1.050000 32040408.0000000000000
-1.350000 32040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 32050506
+1 0 0 0 0 5 5 1 32050507
+1 0 0 0 0 5 5 2 32050502
+1 0 0 0 0 5 5 3 32050503
+1 0 0 0 0 5 5 4 32050504
+1 0 0 0 0 5 5 5 32050505
+1 0 0 0 0 5 5 6 32050506
+1 0 0 0 0 5 5 7 32050507
+1 0 0 0 0 5 5 8 32050502
+1 0 0 0 0 5 5 9 32050503
+
-"Time = 1.000000
--1.350000 32040406.0000000000000
--1.050000 32040407.0000000000000
--0.750000 32040402.0000000000000
--0.450000 32040403.0000000000000
--0.150000 32040404.0000000000000
-0.150000 32040405.0000000000000
-0.450000 32040406.0000000000000
-0.750000 32040407.0000000000000
-1.050000 32040402.0000000000000
-1.350000 32040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/az.xl b/CarpetAttic/Cart3dTest/test/periodic/az.xl
index 0a4b1c7a6..9c2733464 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/az.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic/az.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::az x (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 33000505
+0 0 0 0 0 1 5 5 33010505
+0 0 0 0 0 2 5 5 33020505
+0 0 0 0 0 3 5 5 33030505
+0 0 0 0 0 4 5 5 33040505
+0 0 0 0 0 5 5 5 33050505
+0 0 0 0 0 6 5 5 33060505
+0 0 0 0 0 7 5 5 33070505
+0 0 0 0 0 8 5 5 33080505
+0 0 0 0 0 9 5 5 33090505
-"Time = 0.000000
--1.350000 33000404.0000000000000
--1.050000 33010404.0000000000000
--0.750000 33020404.0000000000000
--0.450000 33030404.0000000000000
--0.150000 33040404.0000000000000
-0.150000 33050404.0000000000000
-0.450000 33060404.0000000000000
-0.750000 33070404.0000000000000
-1.050000 33080404.0000000000000
-1.350000 33090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 33000505
+1 0 0 0 0 1 5 5 33010505
+1 0 0 0 0 2 5 5 33020505
+1 0 0 0 0 3 5 5 33030505
+1 0 0 0 0 4 5 5 33040505
+1 0 0 0 0 5 5 5 33050505
+1 0 0 0 0 6 5 5 33060505
+1 0 0 0 0 7 5 5 33070505
+1 0 0 0 0 8 5 5 33080505
+1 0 0 0 0 9 5 5 33090505
+
-"Time = 1.000000
--1.350000 33000404.0000000000000
--1.050000 33010404.0000000000000
--0.750000 33020404.0000000000000
--0.450000 33030404.0000000000000
--0.150000 33040404.0000000000000
-0.150000 33050404.0000000000000
-0.450000 33060404.0000000000000
-0.750000 33070404.0000000000000
-1.050000 33080404.0000000000000
-1.350000 33090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/az.yl b/CarpetAttic/Cart3dTest/test/periodic/az.yl
index f0cf12fcc..961dd75d1 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/az.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic/az.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::az y (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 33050005
+0 0 0 0 0 5 1 5 33050105
+0 0 0 0 0 5 2 5 33050205
+0 0 0 0 0 5 3 5 33050305
+0 0 0 0 0 5 4 5 33050405
+0 0 0 0 0 5 5 5 33050505
+0 0 0 0 0 5 6 5 33050605
+0 0 0 0 0 5 7 5 33050705
+0 0 0 0 0 5 8 5 33050805
+0 0 0 0 0 5 9 5 33050905
-"Time = 0.000000
--1.350000 33040004.0000000000000
--1.050000 33040104.0000000000000
--0.750000 33040204.0000000000000
--0.450000 33040304.0000000000000
--0.150000 33040404.0000000000000
-0.150000 33040504.0000000000000
-0.450000 33040604.0000000000000
-0.750000 33040704.0000000000000
-1.050000 33040804.0000000000000
-1.350000 33040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 33050805
+1 0 0 0 0 5 1 5 33050105
+1 0 0 0 0 5 2 5 33050205
+1 0 0 0 0 5 3 5 33050305
+1 0 0 0 0 5 4 5 33050405
+1 0 0 0 0 5 5 5 33050505
+1 0 0 0 0 5 6 5 33050605
+1 0 0 0 0 5 7 5 33050705
+1 0 0 0 0 5 8 5 33050805
+1 0 0 0 0 5 9 5 33050105
+
-"Time = 1.000000
--1.350000 33040804.0000000000000
--1.050000 33040104.0000000000000
--0.750000 33040204.0000000000000
--0.450000 33040304.0000000000000
--0.150000 33040404.0000000000000
-0.150000 33040504.0000000000000
-0.450000 33040604.0000000000000
-0.750000 33040704.0000000000000
-1.050000 33040804.0000000000000
-1.350000 33040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/az.zl b/CarpetAttic/Cart3dTest/test/periodic/az.zl
index 5ffa462f8..c25f07cd1 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/az.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic/az.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::az z (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 33050500
+0 0 0 0 0 5 5 1 33050501
+0 0 0 0 0 5 5 2 33050502
+0 0 0 0 0 5 5 3 33050503
+0 0 0 0 0 5 5 4 33050504
+0 0 0 0 0 5 5 5 33050505
+0 0 0 0 0 5 5 6 33050506
+0 0 0 0 0 5 5 7 33050507
+0 0 0 0 0 5 5 8 33050508
+0 0 0 0 0 5 5 9 33050509
-"Time = 0.000000
--1.350000 33040400.0000000000000
--1.050000 33040401.0000000000000
--0.750000 33040402.0000000000000
--0.450000 33040403.0000000000000
--0.150000 33040404.0000000000000
-0.150000 33040405.0000000000000
-0.450000 33040406.0000000000000
-0.750000 33040407.0000000000000
-1.050000 33040408.0000000000000
-1.350000 33040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 33050506
+1 0 0 0 0 5 5 1 33050507
+1 0 0 0 0 5 5 2 33050502
+1 0 0 0 0 5 5 3 33050503
+1 0 0 0 0 5 5 4 33050504
+1 0 0 0 0 5 5 5 33050505
+1 0 0 0 0 5 5 6 33050506
+1 0 0 0 0 5 5 7 33050507
+1 0 0 0 0 5 5 8 33050502
+1 0 0 0 0 5 5 9 33050503
+
-"Time = 1.000000
--1.350000 33040406.0000000000000
--1.050000 33040407.0000000000000
--0.750000 33040402.0000000000000
--0.450000 33040403.0000000000000
--0.150000 33040404.0000000000000
-0.150000 33040405.0000000000000
-0.450000 33040406.0000000000000
-0.750000 33040407.0000000000000
-1.050000 33040402.0000000000000
-1.350000 33040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/cart3d_x.xl b/CarpetAttic/Cart3dTest/test/periodic/cart3d_x.xl
index 33b36d0af..22e840206 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/cart3d_x.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic/cart3d_x.xl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x x (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 -1.35
+0 0 0 0 0 1 5 5 -1.05
+0 0 0 0 0 2 5 5 -0.75
+0 0 0 0 0 3 5 5 -0.45
+0 0 0 0 0 4 5 5 -0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 6 5 5 0.45
+0 0 0 0 0 7 5 5 0.75
+0 0 0 0 0 8 5 5 1.05
+0 0 0 0 0 9 5 5 1.35
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 -1.35
+1 0 0 0 0 1 5 5 -1.05
+1 0 0 0 0 2 5 5 -0.75
+1 0 0 0 0 3 5 5 -0.45
+1 0 0 0 0 4 5 5 -0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 6 5 5 0.45
+1 0 0 0 0 7 5 5 0.75
+1 0 0 0 0 8 5 5 1.05
+1 0 0 0 0 9 5 5 1.35
+
-"Time = 1.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/cart3d_x.yl b/CarpetAttic/Cart3dTest/test/periodic/cart3d_x.yl
index 52b13d0ae..592815c82 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/cart3d_x.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic/cart3d_x.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x y (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 0.15
+0 0 0 0 0 5 1 5 0.15
+0 0 0 0 0 5 2 5 0.15
+0 0 0 0 0 5 3 5 0.15
+0 0 0 0 0 5 4 5 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 6 5 0.15
+0 0 0 0 0 5 7 5 0.15
+0 0 0 0 0 5 8 5 0.15
+0 0 0 0 0 5 9 5 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 0.15
+1 0 0 0 0 5 1 5 0.15
+1 0 0 0 0 5 2 5 0.15
+1 0 0 0 0 5 3 5 0.15
+1 0 0 0 0 5 4 5 0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 5 6 5 0.15
+1 0 0 0 0 5 7 5 0.15
+1 0 0 0 0 5 8 5 0.15
+1 0 0 0 0 5 9 5 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/cart3d_x.zl b/CarpetAttic/Cart3dTest/test/periodic/cart3d_x.zl
index 52b13d0ae..1f894853b 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/cart3d_x.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic/cart3d_x.zl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x z (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 0.15
+0 0 0 0 0 5 5 1 0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 5 5 3 0.15
+0 0 0 0 0 5 5 4 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 5 6 0.15
+0 0 0 0 0 5 5 7 0.15
+0 0 0 0 0 5 5 8 0.15
+0 0 0 0 0 5 5 9 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 0.15
+1 0 0 0 0 5 5 1 0.15
+1 0 0 0 0 5 5 2 0.15
+1 0 0 0 0 5 5 3 0.15
+1 0 0 0 0 5 5 4 0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 5 5 6 0.15
+1 0 0 0 0 5 5 7 0.15
+1 0 0 0 0 5 5 8 0.15
+1 0 0 0 0 5 5 9 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/cart3d_y.xl b/CarpetAttic/Cart3dTest/test/periodic/cart3d_y.xl
index 52b13d0ae..8ee8190c4 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/cart3d_y.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic/cart3d_y.xl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y x (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 0.15
+0 0 0 0 0 1 5 5 0.15
+0 0 0 0 0 2 5 5 0.15
+0 0 0 0 0 3 5 5 0.15
+0 0 0 0 0 4 5 5 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 6 5 5 0.15
+0 0 0 0 0 7 5 5 0.15
+0 0 0 0 0 8 5 5 0.15
+0 0 0 0 0 9 5 5 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 0.15
+1 0 0 0 0 1 5 5 0.15
+1 0 0 0 0 2 5 5 0.15
+1 0 0 0 0 3 5 5 0.15
+1 0 0 0 0 4 5 5 0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 6 5 5 0.15
+1 0 0 0 0 7 5 5 0.15
+1 0 0 0 0 8 5 5 0.15
+1 0 0 0 0 9 5 5 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/cart3d_y.yl b/CarpetAttic/Cart3dTest/test/periodic/cart3d_y.yl
index 33b36d0af..aec69999e 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/cart3d_y.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic/cart3d_y.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y y (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 -1.35
+0 0 0 0 0 5 1 5 -1.05
+0 0 0 0 0 5 2 5 -0.75
+0 0 0 0 0 5 3 5 -0.45
+0 0 0 0 0 5 4 5 -0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 6 5 0.45
+0 0 0 0 0 5 7 5 0.75
+0 0 0 0 0 5 8 5 1.05
+0 0 0 0 0 5 9 5 1.35
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 -1.35
+1 0 0 0 0 5 1 5 -1.05
+1 0 0 0 0 5 2 5 -0.75
+1 0 0 0 0 5 3 5 -0.45
+1 0 0 0 0 5 4 5 -0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 5 6 5 0.45
+1 0 0 0 0 5 7 5 0.75
+1 0 0 0 0 5 8 5 1.05
+1 0 0 0 0 5 9 5 1.35
+
-"Time = 1.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/cart3d_y.zl b/CarpetAttic/Cart3dTest/test/periodic/cart3d_y.zl
index 52b13d0ae..f32f3acb9 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/cart3d_y.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic/cart3d_y.zl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y z (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 0.15
+0 0 0 0 0 5 5 1 0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 5 5 3 0.15
+0 0 0 0 0 5 5 4 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 5 6 0.15
+0 0 0 0 0 5 5 7 0.15
+0 0 0 0 0 5 5 8 0.15
+0 0 0 0 0 5 5 9 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 0.15
+1 0 0 0 0 5 5 1 0.15
+1 0 0 0 0 5 5 2 0.15
+1 0 0 0 0 5 5 3 0.15
+1 0 0 0 0 5 5 4 0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 5 5 6 0.15
+1 0 0 0 0 5 5 7 0.15
+1 0 0 0 0 5 5 8 0.15
+1 0 0 0 0 5 5 9 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/cart3d_z.xl b/CarpetAttic/Cart3dTest/test/periodic/cart3d_z.xl
index 52b13d0ae..400b19f39 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/cart3d_z.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic/cart3d_z.xl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z x (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 0.15
+0 0 0 0 0 1 5 5 0.15
+0 0 0 0 0 2 5 5 0.15
+0 0 0 0 0 3 5 5 0.15
+0 0 0 0 0 4 5 5 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 6 5 5 0.15
+0 0 0 0 0 7 5 5 0.15
+0 0 0 0 0 8 5 5 0.15
+0 0 0 0 0 9 5 5 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 0.15
+1 0 0 0 0 1 5 5 0.15
+1 0 0 0 0 2 5 5 0.15
+1 0 0 0 0 3 5 5 0.15
+1 0 0 0 0 4 5 5 0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 6 5 5 0.15
+1 0 0 0 0 7 5 5 0.15
+1 0 0 0 0 8 5 5 0.15
+1 0 0 0 0 9 5 5 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/cart3d_z.yl b/CarpetAttic/Cart3dTest/test/periodic/cart3d_z.yl
index 52b13d0ae..0373176c5 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/cart3d_z.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic/cart3d_z.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z y (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 0.15
+0 0 0 0 0 5 1 5 0.15
+0 0 0 0 0 5 2 5 0.15
+0 0 0 0 0 5 3 5 0.15
+0 0 0 0 0 5 4 5 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 6 5 0.15
+0 0 0 0 0 5 7 5 0.15
+0 0 0 0 0 5 8 5 0.15
+0 0 0 0 0 5 9 5 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 0.15
+1 0 0 0 0 5 1 5 0.15
+1 0 0 0 0 5 2 5 0.15
+1 0 0 0 0 5 3 5 0.15
+1 0 0 0 0 5 4 5 0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 5 6 5 0.15
+1 0 0 0 0 5 7 5 0.15
+1 0 0 0 0 5 8 5 0.15
+1 0 0 0 0 5 9 5 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/cart3d_z.zl b/CarpetAttic/Cart3dTest/test/periodic/cart3d_z.zl
index 33b36d0af..6fd48c20b 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/cart3d_z.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic/cart3d_z.zl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z z (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 -1.35
+0 0 0 0 0 5 5 1 -1.05
+0 0 0 0 0 5 5 2 -0.75
+0 0 0 0 0 5 5 3 -0.45
+0 0 0 0 0 5 5 4 -0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 5 6 0.45
+0 0 0 0 0 5 5 7 0.75
+0 0 0 0 0 5 5 8 1.05
+0 0 0 0 0 5 5 9 1.35
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 -1.35
+1 0 0 0 0 5 5 1 -1.05
+1 0 0 0 0 5 5 2 -0.75
+1 0 0 0 0 5 5 3 -0.45
+1 0 0 0 0 5 5 4 -0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 5 5 6 0.45
+1 0 0 0 0 5 5 7 0.75
+1 0 0 0 0 5 5 8 1.05
+1 0 0 0 0 5 5 9 1.35
+
-"Time = 1.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/fxx.xl b/CarpetAttic/Cart3dTest/test/periodic/fxx.xl
index 7e21c6074..f4e4dc8fd 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/fxx.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic/fxx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx x (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 41000505
+0 0 0 0 0 1 5 5 41010505
+0 0 0 0 0 2 5 5 41020505
+0 0 0 0 0 3 5 5 41030505
+0 0 0 0 0 4 5 5 41040505
+0 0 0 0 0 5 5 5 41050505
+0 0 0 0 0 6 5 5 41060505
+0 0 0 0 0 7 5 5 41070505
+0 0 0 0 0 8 5 5 41080505
+0 0 0 0 0 9 5 5 41090505
-"Time = 0.000000
--1.350000 41000404.0000000000000
--1.050000 41010404.0000000000000
--0.750000 41020404.0000000000000
--0.450000 41030404.0000000000000
--0.150000 41040404.0000000000000
-0.150000 41050404.0000000000000
-0.450000 41060404.0000000000000
-0.750000 41070404.0000000000000
-1.050000 41080404.0000000000000
-1.350000 41090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 41000505
+1 0 0 0 0 1 5 5 41010505
+1 0 0 0 0 2 5 5 41020505
+1 0 0 0 0 3 5 5 41030505
+1 0 0 0 0 4 5 5 41040505
+1 0 0 0 0 5 5 5 41050505
+1 0 0 0 0 6 5 5 41060505
+1 0 0 0 0 7 5 5 41070505
+1 0 0 0 0 8 5 5 41080505
+1 0 0 0 0 9 5 5 41090505
+
-"Time = 1.000000
--1.350000 41000404.0000000000000
--1.050000 41010404.0000000000000
--0.750000 41020404.0000000000000
--0.450000 41030404.0000000000000
--0.150000 41040404.0000000000000
-0.150000 41050404.0000000000000
-0.450000 41060404.0000000000000
-0.750000 41070404.0000000000000
-1.050000 41080404.0000000000000
-1.350000 41090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/fxx.yl b/CarpetAttic/Cart3dTest/test/periodic/fxx.yl
index 45f35c170..635c93712 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/fxx.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic/fxx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx y (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 41050005
+0 0 0 0 0 5 1 5 41050105
+0 0 0 0 0 5 2 5 41050205
+0 0 0 0 0 5 3 5 41050305
+0 0 0 0 0 5 4 5 41050405
+0 0 0 0 0 5 5 5 41050505
+0 0 0 0 0 5 6 5 41050605
+0 0 0 0 0 5 7 5 41050705
+0 0 0 0 0 5 8 5 41050805
+0 0 0 0 0 5 9 5 41050905
-"Time = 0.000000
--1.350000 41040004.0000000000000
--1.050000 41040104.0000000000000
--0.750000 41040204.0000000000000
--0.450000 41040304.0000000000000
--0.150000 41040404.0000000000000
-0.150000 41040504.0000000000000
-0.450000 41040604.0000000000000
-0.750000 41040704.0000000000000
-1.050000 41040804.0000000000000
-1.350000 41040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 41050805
+1 0 0 0 0 5 1 5 41050105
+1 0 0 0 0 5 2 5 41050205
+1 0 0 0 0 5 3 5 41050305
+1 0 0 0 0 5 4 5 41050405
+1 0 0 0 0 5 5 5 41050505
+1 0 0 0 0 5 6 5 41050605
+1 0 0 0 0 5 7 5 41050705
+1 0 0 0 0 5 8 5 41050805
+1 0 0 0 0 5 9 5 41050105
+
-"Time = 1.000000
--1.350000 41040804.0000000000000
--1.050000 41040104.0000000000000
--0.750000 41040204.0000000000000
--0.450000 41040304.0000000000000
--0.150000 41040404.0000000000000
-0.150000 41040504.0000000000000
-0.450000 41040604.0000000000000
-0.750000 41040704.0000000000000
-1.050000 41040804.0000000000000
-1.350000 41040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/fxx.zl b/CarpetAttic/Cart3dTest/test/periodic/fxx.zl
index fc6d3b6e1..64395ee5f 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/fxx.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic/fxx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx z (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 41050500
+0 0 0 0 0 5 5 1 41050501
+0 0 0 0 0 5 5 2 41050502
+0 0 0 0 0 5 5 3 41050503
+0 0 0 0 0 5 5 4 41050504
+0 0 0 0 0 5 5 5 41050505
+0 0 0 0 0 5 5 6 41050506
+0 0 0 0 0 5 5 7 41050507
+0 0 0 0 0 5 5 8 41050508
+0 0 0 0 0 5 5 9 41050509
-"Time = 0.000000
--1.350000 41040400.0000000000000
--1.050000 41040401.0000000000000
--0.750000 41040402.0000000000000
--0.450000 41040403.0000000000000
--0.150000 41040404.0000000000000
-0.150000 41040405.0000000000000
-0.450000 41040406.0000000000000
-0.750000 41040407.0000000000000
-1.050000 41040408.0000000000000
-1.350000 41040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 41050506
+1 0 0 0 0 5 5 1 41050507
+1 0 0 0 0 5 5 2 41050502
+1 0 0 0 0 5 5 3 41050503
+1 0 0 0 0 5 5 4 41050504
+1 0 0 0 0 5 5 5 41050505
+1 0 0 0 0 5 5 6 41050506
+1 0 0 0 0 5 5 7 41050507
+1 0 0 0 0 5 5 8 41050502
+1 0 0 0 0 5 5 9 41050503
+
-"Time = 1.000000
--1.350000 41040406.0000000000000
--1.050000 41040407.0000000000000
--0.750000 41040402.0000000000000
--0.450000 41040403.0000000000000
--0.150000 41040404.0000000000000
-0.150000 41040405.0000000000000
-0.450000 41040406.0000000000000
-0.750000 41040407.0000000000000
-1.050000 41040402.0000000000000
-1.350000 41040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/fxy.xl b/CarpetAttic/Cart3dTest/test/periodic/fxy.xl
index 8fd09cad7..bec381f14 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/fxy.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic/fxy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy x (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 42000505
+0 0 0 0 0 1 5 5 42010505
+0 0 0 0 0 2 5 5 42020505
+0 0 0 0 0 3 5 5 42030505
+0 0 0 0 0 4 5 5 42040505
+0 0 0 0 0 5 5 5 42050505
+0 0 0 0 0 6 5 5 42060505
+0 0 0 0 0 7 5 5 42070505
+0 0 0 0 0 8 5 5 42080505
+0 0 0 0 0 9 5 5 42090505
-"Time = 0.000000
--1.350000 42000404.0000000000000
--1.050000 42010404.0000000000000
--0.750000 42020404.0000000000000
--0.450000 42030404.0000000000000
--0.150000 42040404.0000000000000
-0.150000 42050404.0000000000000
-0.450000 42060404.0000000000000
-0.750000 42070404.0000000000000
-1.050000 42080404.0000000000000
-1.350000 42090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 42000505
+1 0 0 0 0 1 5 5 42010505
+1 0 0 0 0 2 5 5 42020505
+1 0 0 0 0 3 5 5 42030505
+1 0 0 0 0 4 5 5 42040505
+1 0 0 0 0 5 5 5 42050505
+1 0 0 0 0 6 5 5 42060505
+1 0 0 0 0 7 5 5 42070505
+1 0 0 0 0 8 5 5 42080505
+1 0 0 0 0 9 5 5 42090505
+
-"Time = 1.000000
--1.350000 42000404.0000000000000
--1.050000 42010404.0000000000000
--0.750000 42020404.0000000000000
--0.450000 42030404.0000000000000
--0.150000 42040404.0000000000000
-0.150000 42050404.0000000000000
-0.450000 42060404.0000000000000
-0.750000 42070404.0000000000000
-1.050000 42080404.0000000000000
-1.350000 42090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/fxy.yl b/CarpetAttic/Cart3dTest/test/periodic/fxy.yl
index 45f9f64f6..961acf9dc 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/fxy.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic/fxy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy y (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 42050005
+0 0 0 0 0 5 1 5 42050105
+0 0 0 0 0 5 2 5 42050205
+0 0 0 0 0 5 3 5 42050305
+0 0 0 0 0 5 4 5 42050405
+0 0 0 0 0 5 5 5 42050505
+0 0 0 0 0 5 6 5 42050605
+0 0 0 0 0 5 7 5 42050705
+0 0 0 0 0 5 8 5 42050805
+0 0 0 0 0 5 9 5 42050905
-"Time = 0.000000
--1.350000 42040004.0000000000000
--1.050000 42040104.0000000000000
--0.750000 42040204.0000000000000
--0.450000 42040304.0000000000000
--0.150000 42040404.0000000000000
-0.150000 42040504.0000000000000
-0.450000 42040604.0000000000000
-0.750000 42040704.0000000000000
-1.050000 42040804.0000000000000
-1.350000 42040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 42050805
+1 0 0 0 0 5 1 5 42050105
+1 0 0 0 0 5 2 5 42050205
+1 0 0 0 0 5 3 5 42050305
+1 0 0 0 0 5 4 5 42050405
+1 0 0 0 0 5 5 5 42050505
+1 0 0 0 0 5 6 5 42050605
+1 0 0 0 0 5 7 5 42050705
+1 0 0 0 0 5 8 5 42050805
+1 0 0 0 0 5 9 5 42050105
+
-"Time = 1.000000
--1.350000 42040804.0000000000000
--1.050000 42040104.0000000000000
--0.750000 42040204.0000000000000
--0.450000 42040304.0000000000000
--0.150000 42040404.0000000000000
-0.150000 42040504.0000000000000
-0.450000 42040604.0000000000000
-0.750000 42040704.0000000000000
-1.050000 42040804.0000000000000
-1.350000 42040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/fxy.zl b/CarpetAttic/Cart3dTest/test/periodic/fxy.zl
index b14c1908d..1e6801dbd 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/fxy.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic/fxy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy z (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 42050500
+0 0 0 0 0 5 5 1 42050501
+0 0 0 0 0 5 5 2 42050502
+0 0 0 0 0 5 5 3 42050503
+0 0 0 0 0 5 5 4 42050504
+0 0 0 0 0 5 5 5 42050505
+0 0 0 0 0 5 5 6 42050506
+0 0 0 0 0 5 5 7 42050507
+0 0 0 0 0 5 5 8 42050508
+0 0 0 0 0 5 5 9 42050509
-"Time = 0.000000
--1.350000 42040400.0000000000000
--1.050000 42040401.0000000000000
--0.750000 42040402.0000000000000
--0.450000 42040403.0000000000000
--0.150000 42040404.0000000000000
-0.150000 42040405.0000000000000
-0.450000 42040406.0000000000000
-0.750000 42040407.0000000000000
-1.050000 42040408.0000000000000
-1.350000 42040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 42050506
+1 0 0 0 0 5 5 1 42050507
+1 0 0 0 0 5 5 2 42050502
+1 0 0 0 0 5 5 3 42050503
+1 0 0 0 0 5 5 4 42050504
+1 0 0 0 0 5 5 5 42050505
+1 0 0 0 0 5 5 6 42050506
+1 0 0 0 0 5 5 7 42050507
+1 0 0 0 0 5 5 8 42050502
+1 0 0 0 0 5 5 9 42050503
+
-"Time = 1.000000
--1.350000 42040406.0000000000000
--1.050000 42040407.0000000000000
--0.750000 42040402.0000000000000
--0.450000 42040403.0000000000000
--0.150000 42040404.0000000000000
-0.150000 42040405.0000000000000
-0.450000 42040406.0000000000000
-0.750000 42040407.0000000000000
-1.050000 42040402.0000000000000
-1.350000 42040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/fxz.xl b/CarpetAttic/Cart3dTest/test/periodic/fxz.xl
index a51d4594d..1a33e9082 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/fxz.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic/fxz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz x (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 43000505
+0 0 0 0 0 1 5 5 43010505
+0 0 0 0 0 2 5 5 43020505
+0 0 0 0 0 3 5 5 43030505
+0 0 0 0 0 4 5 5 43040505
+0 0 0 0 0 5 5 5 43050505
+0 0 0 0 0 6 5 5 43060505
+0 0 0 0 0 7 5 5 43070505
+0 0 0 0 0 8 5 5 43080505
+0 0 0 0 0 9 5 5 43090505
-"Time = 0.000000
--1.350000 43000404.0000000000000
--1.050000 43010404.0000000000000
--0.750000 43020404.0000000000000
--0.450000 43030404.0000000000000
--0.150000 43040404.0000000000000
-0.150000 43050404.0000000000000
-0.450000 43060404.0000000000000
-0.750000 43070404.0000000000000
-1.050000 43080404.0000000000000
-1.350000 43090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 43000505
+1 0 0 0 0 1 5 5 43010505
+1 0 0 0 0 2 5 5 43020505
+1 0 0 0 0 3 5 5 43030505
+1 0 0 0 0 4 5 5 43040505
+1 0 0 0 0 5 5 5 43050505
+1 0 0 0 0 6 5 5 43060505
+1 0 0 0 0 7 5 5 43070505
+1 0 0 0 0 8 5 5 43080505
+1 0 0 0 0 9 5 5 43090505
+
-"Time = 1.000000
--1.350000 43000404.0000000000000
--1.050000 43010404.0000000000000
--0.750000 43020404.0000000000000
--0.450000 43030404.0000000000000
--0.150000 43040404.0000000000000
-0.150000 43050404.0000000000000
-0.450000 43060404.0000000000000
-0.750000 43070404.0000000000000
-1.050000 43080404.0000000000000
-1.350000 43090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/fxz.yl b/CarpetAttic/Cart3dTest/test/periodic/fxz.yl
index a482eaba1..fb470154d 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/fxz.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic/fxz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz y (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 43050005
+0 0 0 0 0 5 1 5 43050105
+0 0 0 0 0 5 2 5 43050205
+0 0 0 0 0 5 3 5 43050305
+0 0 0 0 0 5 4 5 43050405
+0 0 0 0 0 5 5 5 43050505
+0 0 0 0 0 5 6 5 43050605
+0 0 0 0 0 5 7 5 43050705
+0 0 0 0 0 5 8 5 43050805
+0 0 0 0 0 5 9 5 43050905
-"Time = 0.000000
--1.350000 43040004.0000000000000
--1.050000 43040104.0000000000000
--0.750000 43040204.0000000000000
--0.450000 43040304.0000000000000
--0.150000 43040404.0000000000000
-0.150000 43040504.0000000000000
-0.450000 43040604.0000000000000
-0.750000 43040704.0000000000000
-1.050000 43040804.0000000000000
-1.350000 43040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 43050805
+1 0 0 0 0 5 1 5 43050105
+1 0 0 0 0 5 2 5 43050205
+1 0 0 0 0 5 3 5 43050305
+1 0 0 0 0 5 4 5 43050405
+1 0 0 0 0 5 5 5 43050505
+1 0 0 0 0 5 6 5 43050605
+1 0 0 0 0 5 7 5 43050705
+1 0 0 0 0 5 8 5 43050805
+1 0 0 0 0 5 9 5 43050105
+
-"Time = 1.000000
--1.350000 43040804.0000000000000
--1.050000 43040104.0000000000000
--0.750000 43040204.0000000000000
--0.450000 43040304.0000000000000
--0.150000 43040404.0000000000000
-0.150000 43040504.0000000000000
-0.450000 43040604.0000000000000
-0.750000 43040704.0000000000000
-1.050000 43040804.0000000000000
-1.350000 43040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/fxz.zl b/CarpetAttic/Cart3dTest/test/periodic/fxz.zl
index 5aef2dcd9..d110a11d6 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/fxz.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic/fxz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz z (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 43050500
+0 0 0 0 0 5 5 1 43050501
+0 0 0 0 0 5 5 2 43050502
+0 0 0 0 0 5 5 3 43050503
+0 0 0 0 0 5 5 4 43050504
+0 0 0 0 0 5 5 5 43050505
+0 0 0 0 0 5 5 6 43050506
+0 0 0 0 0 5 5 7 43050507
+0 0 0 0 0 5 5 8 43050508
+0 0 0 0 0 5 5 9 43050509
-"Time = 0.000000
--1.350000 43040400.0000000000000
--1.050000 43040401.0000000000000
--0.750000 43040402.0000000000000
--0.450000 43040403.0000000000000
--0.150000 43040404.0000000000000
-0.150000 43040405.0000000000000
-0.450000 43040406.0000000000000
-0.750000 43040407.0000000000000
-1.050000 43040408.0000000000000
-1.350000 43040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 43050506
+1 0 0 0 0 5 5 1 43050507
+1 0 0 0 0 5 5 2 43050502
+1 0 0 0 0 5 5 3 43050503
+1 0 0 0 0 5 5 4 43050504
+1 0 0 0 0 5 5 5 43050505
+1 0 0 0 0 5 5 6 43050506
+1 0 0 0 0 5 5 7 43050507
+1 0 0 0 0 5 5 8 43050502
+1 0 0 0 0 5 5 9 43050503
+
-"Time = 1.000000
--1.350000 43040406.0000000000000
--1.050000 43040407.0000000000000
--0.750000 43040402.0000000000000
--0.450000 43040403.0000000000000
--0.150000 43040404.0000000000000
-0.150000 43040405.0000000000000
-0.450000 43040406.0000000000000
-0.750000 43040407.0000000000000
-1.050000 43040402.0000000000000
-1.350000 43040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/fyx.xl b/CarpetAttic/Cart3dTest/test/periodic/fyx.xl
index 98b712c6d..cae9cbe2d 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/fyx.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic/fyx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx x (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 44000505
+0 0 0 0 0 1 5 5 44010505
+0 0 0 0 0 2 5 5 44020505
+0 0 0 0 0 3 5 5 44030505
+0 0 0 0 0 4 5 5 44040505
+0 0 0 0 0 5 5 5 44050505
+0 0 0 0 0 6 5 5 44060505
+0 0 0 0 0 7 5 5 44070505
+0 0 0 0 0 8 5 5 44080505
+0 0 0 0 0 9 5 5 44090505
-"Time = 0.000000
--1.350000 44000404.0000000000000
--1.050000 44010404.0000000000000
--0.750000 44020404.0000000000000
--0.450000 44030404.0000000000000
--0.150000 44040404.0000000000000
-0.150000 44050404.0000000000000
-0.450000 44060404.0000000000000
-0.750000 44070404.0000000000000
-1.050000 44080404.0000000000000
-1.350000 44090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 44000505
+1 0 0 0 0 1 5 5 44010505
+1 0 0 0 0 2 5 5 44020505
+1 0 0 0 0 3 5 5 44030505
+1 0 0 0 0 4 5 5 44040505
+1 0 0 0 0 5 5 5 44050505
+1 0 0 0 0 6 5 5 44060505
+1 0 0 0 0 7 5 5 44070505
+1 0 0 0 0 8 5 5 44080505
+1 0 0 0 0 9 5 5 44090505
+
-"Time = 1.000000
--1.350000 44000404.0000000000000
--1.050000 44010404.0000000000000
--0.750000 44020404.0000000000000
--0.450000 44030404.0000000000000
--0.150000 44040404.0000000000000
-0.150000 44050404.0000000000000
-0.450000 44060404.0000000000000
-0.750000 44070404.0000000000000
-1.050000 44080404.0000000000000
-1.350000 44090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/fyx.yl b/CarpetAttic/Cart3dTest/test/periodic/fyx.yl
index fcb244bb3..30724e461 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/fyx.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic/fyx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx y (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 44050005
+0 0 0 0 0 5 1 5 44050105
+0 0 0 0 0 5 2 5 44050205
+0 0 0 0 0 5 3 5 44050305
+0 0 0 0 0 5 4 5 44050405
+0 0 0 0 0 5 5 5 44050505
+0 0 0 0 0 5 6 5 44050605
+0 0 0 0 0 5 7 5 44050705
+0 0 0 0 0 5 8 5 44050805
+0 0 0 0 0 5 9 5 44050905
-"Time = 0.000000
--1.350000 44040004.0000000000000
--1.050000 44040104.0000000000000
--0.750000 44040204.0000000000000
--0.450000 44040304.0000000000000
--0.150000 44040404.0000000000000
-0.150000 44040504.0000000000000
-0.450000 44040604.0000000000000
-0.750000 44040704.0000000000000
-1.050000 44040804.0000000000000
-1.350000 44040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 44050805
+1 0 0 0 0 5 1 5 44050105
+1 0 0 0 0 5 2 5 44050205
+1 0 0 0 0 5 3 5 44050305
+1 0 0 0 0 5 4 5 44050405
+1 0 0 0 0 5 5 5 44050505
+1 0 0 0 0 5 6 5 44050605
+1 0 0 0 0 5 7 5 44050705
+1 0 0 0 0 5 8 5 44050805
+1 0 0 0 0 5 9 5 44050105
+
-"Time = 1.000000
--1.350000 44040804.0000000000000
--1.050000 44040104.0000000000000
--0.750000 44040204.0000000000000
--0.450000 44040304.0000000000000
--0.150000 44040404.0000000000000
-0.150000 44040504.0000000000000
-0.450000 44040604.0000000000000
-0.750000 44040704.0000000000000
-1.050000 44040804.0000000000000
-1.350000 44040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/fyx.zl b/CarpetAttic/Cart3dTest/test/periodic/fyx.zl
index e8fa61b6b..3c7d095af 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/fyx.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic/fyx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx z (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 44050500
+0 0 0 0 0 5 5 1 44050501
+0 0 0 0 0 5 5 2 44050502
+0 0 0 0 0 5 5 3 44050503
+0 0 0 0 0 5 5 4 44050504
+0 0 0 0 0 5 5 5 44050505
+0 0 0 0 0 5 5 6 44050506
+0 0 0 0 0 5 5 7 44050507
+0 0 0 0 0 5 5 8 44050508
+0 0 0 0 0 5 5 9 44050509
-"Time = 0.000000
--1.350000 44040400.0000000000000
--1.050000 44040401.0000000000000
--0.750000 44040402.0000000000000
--0.450000 44040403.0000000000000
--0.150000 44040404.0000000000000
-0.150000 44040405.0000000000000
-0.450000 44040406.0000000000000
-0.750000 44040407.0000000000000
-1.050000 44040408.0000000000000
-1.350000 44040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 44050506
+1 0 0 0 0 5 5 1 44050507
+1 0 0 0 0 5 5 2 44050502
+1 0 0 0 0 5 5 3 44050503
+1 0 0 0 0 5 5 4 44050504
+1 0 0 0 0 5 5 5 44050505
+1 0 0 0 0 5 5 6 44050506
+1 0 0 0 0 5 5 7 44050507
+1 0 0 0 0 5 5 8 44050502
+1 0 0 0 0 5 5 9 44050503
+
-"Time = 1.000000
--1.350000 44040406.0000000000000
--1.050000 44040407.0000000000000
--0.750000 44040402.0000000000000
--0.450000 44040403.0000000000000
--0.150000 44040404.0000000000000
-0.150000 44040405.0000000000000
-0.450000 44040406.0000000000000
-0.750000 44040407.0000000000000
-1.050000 44040402.0000000000000
-1.350000 44040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/fyy.xl b/CarpetAttic/Cart3dTest/test/periodic/fyy.xl
index dece88fbc..5008c5b15 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/fyy.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic/fyy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy x (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 45000505
+0 0 0 0 0 1 5 5 45010505
+0 0 0 0 0 2 5 5 45020505
+0 0 0 0 0 3 5 5 45030505
+0 0 0 0 0 4 5 5 45040505
+0 0 0 0 0 5 5 5 45050505
+0 0 0 0 0 6 5 5 45060505
+0 0 0 0 0 7 5 5 45070505
+0 0 0 0 0 8 5 5 45080505
+0 0 0 0 0 9 5 5 45090505
-"Time = 0.000000
--1.350000 45000404.0000000000000
--1.050000 45010404.0000000000000
--0.750000 45020404.0000000000000
--0.450000 45030404.0000000000000
--0.150000 45040404.0000000000000
-0.150000 45050404.0000000000000
-0.450000 45060404.0000000000000
-0.750000 45070404.0000000000000
-1.050000 45080404.0000000000000
-1.350000 45090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 45000505
+1 0 0 0 0 1 5 5 45010505
+1 0 0 0 0 2 5 5 45020505
+1 0 0 0 0 3 5 5 45030505
+1 0 0 0 0 4 5 5 45040505
+1 0 0 0 0 5 5 5 45050505
+1 0 0 0 0 6 5 5 45060505
+1 0 0 0 0 7 5 5 45070505
+1 0 0 0 0 8 5 5 45080505
+1 0 0 0 0 9 5 5 45090505
+
-"Time = 1.000000
--1.350000 45000404.0000000000000
--1.050000 45010404.0000000000000
--0.750000 45020404.0000000000000
--0.450000 45030404.0000000000000
--0.150000 45040404.0000000000000
-0.150000 45050404.0000000000000
-0.450000 45060404.0000000000000
-0.750000 45070404.0000000000000
-1.050000 45080404.0000000000000
-1.350000 45090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/fyy.yl b/CarpetAttic/Cart3dTest/test/periodic/fyy.yl
index 35fcd6d09..e97298ab8 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/fyy.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic/fyy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy y (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 45050005
+0 0 0 0 0 5 1 5 45050105
+0 0 0 0 0 5 2 5 45050205
+0 0 0 0 0 5 3 5 45050305
+0 0 0 0 0 5 4 5 45050405
+0 0 0 0 0 5 5 5 45050505
+0 0 0 0 0 5 6 5 45050605
+0 0 0 0 0 5 7 5 45050705
+0 0 0 0 0 5 8 5 45050805
+0 0 0 0 0 5 9 5 45050905
-"Time = 0.000000
--1.350000 45040004.0000000000000
--1.050000 45040104.0000000000000
--0.750000 45040204.0000000000000
--0.450000 45040304.0000000000000
--0.150000 45040404.0000000000000
-0.150000 45040504.0000000000000
-0.450000 45040604.0000000000000
-0.750000 45040704.0000000000000
-1.050000 45040804.0000000000000
-1.350000 45040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 45050805
+1 0 0 0 0 5 1 5 45050105
+1 0 0 0 0 5 2 5 45050205
+1 0 0 0 0 5 3 5 45050305
+1 0 0 0 0 5 4 5 45050405
+1 0 0 0 0 5 5 5 45050505
+1 0 0 0 0 5 6 5 45050605
+1 0 0 0 0 5 7 5 45050705
+1 0 0 0 0 5 8 5 45050805
+1 0 0 0 0 5 9 5 45050105
+
-"Time = 1.000000
--1.350000 45040804.0000000000000
--1.050000 45040104.0000000000000
--0.750000 45040204.0000000000000
--0.450000 45040304.0000000000000
--0.150000 45040404.0000000000000
-0.150000 45040504.0000000000000
-0.450000 45040604.0000000000000
-0.750000 45040704.0000000000000
-1.050000 45040804.0000000000000
-1.350000 45040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/fyy.zl b/CarpetAttic/Cart3dTest/test/periodic/fyy.zl
index 5da540013..7df9b43b3 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/fyy.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic/fyy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy z (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 45050500
+0 0 0 0 0 5 5 1 45050501
+0 0 0 0 0 5 5 2 45050502
+0 0 0 0 0 5 5 3 45050503
+0 0 0 0 0 5 5 4 45050504
+0 0 0 0 0 5 5 5 45050505
+0 0 0 0 0 5 5 6 45050506
+0 0 0 0 0 5 5 7 45050507
+0 0 0 0 0 5 5 8 45050508
+0 0 0 0 0 5 5 9 45050509
-"Time = 0.000000
--1.350000 45040400.0000000000000
--1.050000 45040401.0000000000000
--0.750000 45040402.0000000000000
--0.450000 45040403.0000000000000
--0.150000 45040404.0000000000000
-0.150000 45040405.0000000000000
-0.450000 45040406.0000000000000
-0.750000 45040407.0000000000000
-1.050000 45040408.0000000000000
-1.350000 45040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 45050506
+1 0 0 0 0 5 5 1 45050507
+1 0 0 0 0 5 5 2 45050502
+1 0 0 0 0 5 5 3 45050503
+1 0 0 0 0 5 5 4 45050504
+1 0 0 0 0 5 5 5 45050505
+1 0 0 0 0 5 5 6 45050506
+1 0 0 0 0 5 5 7 45050507
+1 0 0 0 0 5 5 8 45050502
+1 0 0 0 0 5 5 9 45050503
+
-"Time = 1.000000
--1.350000 45040406.0000000000000
--1.050000 45040407.0000000000000
--0.750000 45040402.0000000000000
--0.450000 45040403.0000000000000
--0.150000 45040404.0000000000000
-0.150000 45040405.0000000000000
-0.450000 45040406.0000000000000
-0.750000 45040407.0000000000000
-1.050000 45040402.0000000000000
-1.350000 45040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/fyz.xl b/CarpetAttic/Cart3dTest/test/periodic/fyz.xl
index cfcac0c16..d98ca2a15 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/fyz.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic/fyz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz x (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 46000505
+0 0 0 0 0 1 5 5 46010505
+0 0 0 0 0 2 5 5 46020505
+0 0 0 0 0 3 5 5 46030505
+0 0 0 0 0 4 5 5 46040505
+0 0 0 0 0 5 5 5 46050505
+0 0 0 0 0 6 5 5 46060505
+0 0 0 0 0 7 5 5 46070505
+0 0 0 0 0 8 5 5 46080505
+0 0 0 0 0 9 5 5 46090505
-"Time = 0.000000
--1.350000 46000404.0000000000000
--1.050000 46010404.0000000000000
--0.750000 46020404.0000000000000
--0.450000 46030404.0000000000000
--0.150000 46040404.0000000000000
-0.150000 46050404.0000000000000
-0.450000 46060404.0000000000000
-0.750000 46070404.0000000000000
-1.050000 46080404.0000000000000
-1.350000 46090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 46000505
+1 0 0 0 0 1 5 5 46010505
+1 0 0 0 0 2 5 5 46020505
+1 0 0 0 0 3 5 5 46030505
+1 0 0 0 0 4 5 5 46040505
+1 0 0 0 0 5 5 5 46050505
+1 0 0 0 0 6 5 5 46060505
+1 0 0 0 0 7 5 5 46070505
+1 0 0 0 0 8 5 5 46080505
+1 0 0 0 0 9 5 5 46090505
+
-"Time = 1.000000
--1.350000 46000404.0000000000000
--1.050000 46010404.0000000000000
--0.750000 46020404.0000000000000
--0.450000 46030404.0000000000000
--0.150000 46040404.0000000000000
-0.150000 46050404.0000000000000
-0.450000 46060404.0000000000000
-0.750000 46070404.0000000000000
-1.050000 46080404.0000000000000
-1.350000 46090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/fyz.yl b/CarpetAttic/Cart3dTest/test/periodic/fyz.yl
index ca8e7c37d..02982ec37 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/fyz.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic/fyz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz y (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 46050005
+0 0 0 0 0 5 1 5 46050105
+0 0 0 0 0 5 2 5 46050205
+0 0 0 0 0 5 3 5 46050305
+0 0 0 0 0 5 4 5 46050405
+0 0 0 0 0 5 5 5 46050505
+0 0 0 0 0 5 6 5 46050605
+0 0 0 0 0 5 7 5 46050705
+0 0 0 0 0 5 8 5 46050805
+0 0 0 0 0 5 9 5 46050905
-"Time = 0.000000
--1.350000 46040004.0000000000000
--1.050000 46040104.0000000000000
--0.750000 46040204.0000000000000
--0.450000 46040304.0000000000000
--0.150000 46040404.0000000000000
-0.150000 46040504.0000000000000
-0.450000 46040604.0000000000000
-0.750000 46040704.0000000000000
-1.050000 46040804.0000000000000
-1.350000 46040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 46050805
+1 0 0 0 0 5 1 5 46050105
+1 0 0 0 0 5 2 5 46050205
+1 0 0 0 0 5 3 5 46050305
+1 0 0 0 0 5 4 5 46050405
+1 0 0 0 0 5 5 5 46050505
+1 0 0 0 0 5 6 5 46050605
+1 0 0 0 0 5 7 5 46050705
+1 0 0 0 0 5 8 5 46050805
+1 0 0 0 0 5 9 5 46050105
+
-"Time = 1.000000
--1.350000 46040804.0000000000000
--1.050000 46040104.0000000000000
--0.750000 46040204.0000000000000
--0.450000 46040304.0000000000000
--0.150000 46040404.0000000000000
-0.150000 46040504.0000000000000
-0.450000 46040604.0000000000000
-0.750000 46040704.0000000000000
-1.050000 46040804.0000000000000
-1.350000 46040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/fyz.zl b/CarpetAttic/Cart3dTest/test/periodic/fyz.zl
index f64cbf616..b2ef586f3 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/fyz.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic/fyz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz z (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 46050500
+0 0 0 0 0 5 5 1 46050501
+0 0 0 0 0 5 5 2 46050502
+0 0 0 0 0 5 5 3 46050503
+0 0 0 0 0 5 5 4 46050504
+0 0 0 0 0 5 5 5 46050505
+0 0 0 0 0 5 5 6 46050506
+0 0 0 0 0 5 5 7 46050507
+0 0 0 0 0 5 5 8 46050508
+0 0 0 0 0 5 5 9 46050509
-"Time = 0.000000
--1.350000 46040400.0000000000000
--1.050000 46040401.0000000000000
--0.750000 46040402.0000000000000
--0.450000 46040403.0000000000000
--0.150000 46040404.0000000000000
-0.150000 46040405.0000000000000
-0.450000 46040406.0000000000000
-0.750000 46040407.0000000000000
-1.050000 46040408.0000000000000
-1.350000 46040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 46050506
+1 0 0 0 0 5 5 1 46050507
+1 0 0 0 0 5 5 2 46050502
+1 0 0 0 0 5 5 3 46050503
+1 0 0 0 0 5 5 4 46050504
+1 0 0 0 0 5 5 5 46050505
+1 0 0 0 0 5 5 6 46050506
+1 0 0 0 0 5 5 7 46050507
+1 0 0 0 0 5 5 8 46050502
+1 0 0 0 0 5 5 9 46050503
+
-"Time = 1.000000
--1.350000 46040406.0000000000000
--1.050000 46040407.0000000000000
--0.750000 46040402.0000000000000
--0.450000 46040403.0000000000000
--0.150000 46040404.0000000000000
-0.150000 46040405.0000000000000
-0.450000 46040406.0000000000000
-0.750000 46040407.0000000000000
-1.050000 46040402.0000000000000
-1.350000 46040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/fzx.xl b/CarpetAttic/Cart3dTest/test/periodic/fzx.xl
index 58a73c86e..b13ff1471 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/fzx.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic/fzx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx x (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 47000505
+0 0 0 0 0 1 5 5 47010505
+0 0 0 0 0 2 5 5 47020505
+0 0 0 0 0 3 5 5 47030505
+0 0 0 0 0 4 5 5 47040505
+0 0 0 0 0 5 5 5 47050505
+0 0 0 0 0 6 5 5 47060505
+0 0 0 0 0 7 5 5 47070505
+0 0 0 0 0 8 5 5 47080505
+0 0 0 0 0 9 5 5 47090505
-"Time = 0.000000
--1.350000 47000404.0000000000000
--1.050000 47010404.0000000000000
--0.750000 47020404.0000000000000
--0.450000 47030404.0000000000000
--0.150000 47040404.0000000000000
-0.150000 47050404.0000000000000
-0.450000 47060404.0000000000000
-0.750000 47070404.0000000000000
-1.050000 47080404.0000000000000
-1.350000 47090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 47000505
+1 0 0 0 0 1 5 5 47010505
+1 0 0 0 0 2 5 5 47020505
+1 0 0 0 0 3 5 5 47030505
+1 0 0 0 0 4 5 5 47040505
+1 0 0 0 0 5 5 5 47050505
+1 0 0 0 0 6 5 5 47060505
+1 0 0 0 0 7 5 5 47070505
+1 0 0 0 0 8 5 5 47080505
+1 0 0 0 0 9 5 5 47090505
+
-"Time = 1.000000
--1.350000 47000404.0000000000000
--1.050000 47010404.0000000000000
--0.750000 47020404.0000000000000
--0.450000 47030404.0000000000000
--0.150000 47040404.0000000000000
-0.150000 47050404.0000000000000
-0.450000 47060404.0000000000000
-0.750000 47070404.0000000000000
-1.050000 47080404.0000000000000
-1.350000 47090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/fzx.yl b/CarpetAttic/Cart3dTest/test/periodic/fzx.yl
index d6d6f452d..a65e0d332 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/fzx.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic/fzx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx y (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 47050005
+0 0 0 0 0 5 1 5 47050105
+0 0 0 0 0 5 2 5 47050205
+0 0 0 0 0 5 3 5 47050305
+0 0 0 0 0 5 4 5 47050405
+0 0 0 0 0 5 5 5 47050505
+0 0 0 0 0 5 6 5 47050605
+0 0 0 0 0 5 7 5 47050705
+0 0 0 0 0 5 8 5 47050805
+0 0 0 0 0 5 9 5 47050905
-"Time = 0.000000
--1.350000 47040004.0000000000000
--1.050000 47040104.0000000000000
--0.750000 47040204.0000000000000
--0.450000 47040304.0000000000000
--0.150000 47040404.0000000000000
-0.150000 47040504.0000000000000
-0.450000 47040604.0000000000000
-0.750000 47040704.0000000000000
-1.050000 47040804.0000000000000
-1.350000 47040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 47050805
+1 0 0 0 0 5 1 5 47050105
+1 0 0 0 0 5 2 5 47050205
+1 0 0 0 0 5 3 5 47050305
+1 0 0 0 0 5 4 5 47050405
+1 0 0 0 0 5 5 5 47050505
+1 0 0 0 0 5 6 5 47050605
+1 0 0 0 0 5 7 5 47050705
+1 0 0 0 0 5 8 5 47050805
+1 0 0 0 0 5 9 5 47050105
+
-"Time = 1.000000
--1.350000 47040804.0000000000000
--1.050000 47040104.0000000000000
--0.750000 47040204.0000000000000
--0.450000 47040304.0000000000000
--0.150000 47040404.0000000000000
-0.150000 47040504.0000000000000
-0.450000 47040604.0000000000000
-0.750000 47040704.0000000000000
-1.050000 47040804.0000000000000
-1.350000 47040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/fzx.zl b/CarpetAttic/Cart3dTest/test/periodic/fzx.zl
index da6bcaa38..9ea3a452a 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/fzx.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic/fzx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx z (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 47050500
+0 0 0 0 0 5 5 1 47050501
+0 0 0 0 0 5 5 2 47050502
+0 0 0 0 0 5 5 3 47050503
+0 0 0 0 0 5 5 4 47050504
+0 0 0 0 0 5 5 5 47050505
+0 0 0 0 0 5 5 6 47050506
+0 0 0 0 0 5 5 7 47050507
+0 0 0 0 0 5 5 8 47050508
+0 0 0 0 0 5 5 9 47050509
-"Time = 0.000000
--1.350000 47040400.0000000000000
--1.050000 47040401.0000000000000
--0.750000 47040402.0000000000000
--0.450000 47040403.0000000000000
--0.150000 47040404.0000000000000
-0.150000 47040405.0000000000000
-0.450000 47040406.0000000000000
-0.750000 47040407.0000000000000
-1.050000 47040408.0000000000000
-1.350000 47040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 47050506
+1 0 0 0 0 5 5 1 47050507
+1 0 0 0 0 5 5 2 47050502
+1 0 0 0 0 5 5 3 47050503
+1 0 0 0 0 5 5 4 47050504
+1 0 0 0 0 5 5 5 47050505
+1 0 0 0 0 5 5 6 47050506
+1 0 0 0 0 5 5 7 47050507
+1 0 0 0 0 5 5 8 47050502
+1 0 0 0 0 5 5 9 47050503
+
-"Time = 1.000000
--1.350000 47040406.0000000000000
--1.050000 47040407.0000000000000
--0.750000 47040402.0000000000000
--0.450000 47040403.0000000000000
--0.150000 47040404.0000000000000
-0.150000 47040405.0000000000000
-0.450000 47040406.0000000000000
-0.750000 47040407.0000000000000
-1.050000 47040402.0000000000000
-1.350000 47040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/fzy.xl b/CarpetAttic/Cart3dTest/test/periodic/fzy.xl
index 24e570127..d8b2ffa66 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/fzy.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic/fzy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy x (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 48000505
+0 0 0 0 0 1 5 5 48010505
+0 0 0 0 0 2 5 5 48020505
+0 0 0 0 0 3 5 5 48030505
+0 0 0 0 0 4 5 5 48040505
+0 0 0 0 0 5 5 5 48050505
+0 0 0 0 0 6 5 5 48060505
+0 0 0 0 0 7 5 5 48070505
+0 0 0 0 0 8 5 5 48080505
+0 0 0 0 0 9 5 5 48090505
-"Time = 0.000000
--1.350000 48000404.0000000000000
--1.050000 48010404.0000000000000
--0.750000 48020404.0000000000000
--0.450000 48030404.0000000000000
--0.150000 48040404.0000000000000
-0.150000 48050404.0000000000000
-0.450000 48060404.0000000000000
-0.750000 48070404.0000000000000
-1.050000 48080404.0000000000000
-1.350000 48090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 48000505
+1 0 0 0 0 1 5 5 48010505
+1 0 0 0 0 2 5 5 48020505
+1 0 0 0 0 3 5 5 48030505
+1 0 0 0 0 4 5 5 48040505
+1 0 0 0 0 5 5 5 48050505
+1 0 0 0 0 6 5 5 48060505
+1 0 0 0 0 7 5 5 48070505
+1 0 0 0 0 8 5 5 48080505
+1 0 0 0 0 9 5 5 48090505
+
-"Time = 1.000000
--1.350000 48000404.0000000000000
--1.050000 48010404.0000000000000
--0.750000 48020404.0000000000000
--0.450000 48030404.0000000000000
--0.150000 48040404.0000000000000
-0.150000 48050404.0000000000000
-0.450000 48060404.0000000000000
-0.750000 48070404.0000000000000
-1.050000 48080404.0000000000000
-1.350000 48090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/fzy.yl b/CarpetAttic/Cart3dTest/test/periodic/fzy.yl
index cd3c9441d..9f3b6a100 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/fzy.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic/fzy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy y (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 48050005
+0 0 0 0 0 5 1 5 48050105
+0 0 0 0 0 5 2 5 48050205
+0 0 0 0 0 5 3 5 48050305
+0 0 0 0 0 5 4 5 48050405
+0 0 0 0 0 5 5 5 48050505
+0 0 0 0 0 5 6 5 48050605
+0 0 0 0 0 5 7 5 48050705
+0 0 0 0 0 5 8 5 48050805
+0 0 0 0 0 5 9 5 48050905
-"Time = 0.000000
--1.350000 48040004.0000000000000
--1.050000 48040104.0000000000000
--0.750000 48040204.0000000000000
--0.450000 48040304.0000000000000
--0.150000 48040404.0000000000000
-0.150000 48040504.0000000000000
-0.450000 48040604.0000000000000
-0.750000 48040704.0000000000000
-1.050000 48040804.0000000000000
-1.350000 48040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 48050805
+1 0 0 0 0 5 1 5 48050105
+1 0 0 0 0 5 2 5 48050205
+1 0 0 0 0 5 3 5 48050305
+1 0 0 0 0 5 4 5 48050405
+1 0 0 0 0 5 5 5 48050505
+1 0 0 0 0 5 6 5 48050605
+1 0 0 0 0 5 7 5 48050705
+1 0 0 0 0 5 8 5 48050805
+1 0 0 0 0 5 9 5 48050105
+
-"Time = 1.000000
--1.350000 48040804.0000000000000
--1.050000 48040104.0000000000000
--0.750000 48040204.0000000000000
--0.450000 48040304.0000000000000
--0.150000 48040404.0000000000000
-0.150000 48040504.0000000000000
-0.450000 48040604.0000000000000
-0.750000 48040704.0000000000000
-1.050000 48040804.0000000000000
-1.350000 48040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/fzy.zl b/CarpetAttic/Cart3dTest/test/periodic/fzy.zl
index 2cd493e00..9de0b0937 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/fzy.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic/fzy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy z (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 48050500
+0 0 0 0 0 5 5 1 48050501
+0 0 0 0 0 5 5 2 48050502
+0 0 0 0 0 5 5 3 48050503
+0 0 0 0 0 5 5 4 48050504
+0 0 0 0 0 5 5 5 48050505
+0 0 0 0 0 5 5 6 48050506
+0 0 0 0 0 5 5 7 48050507
+0 0 0 0 0 5 5 8 48050508
+0 0 0 0 0 5 5 9 48050509
-"Time = 0.000000
--1.350000 48040400.0000000000000
--1.050000 48040401.0000000000000
--0.750000 48040402.0000000000000
--0.450000 48040403.0000000000000
--0.150000 48040404.0000000000000
-0.150000 48040405.0000000000000
-0.450000 48040406.0000000000000
-0.750000 48040407.0000000000000
-1.050000 48040408.0000000000000
-1.350000 48040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 48050506
+1 0 0 0 0 5 5 1 48050507
+1 0 0 0 0 5 5 2 48050502
+1 0 0 0 0 5 5 3 48050503
+1 0 0 0 0 5 5 4 48050504
+1 0 0 0 0 5 5 5 48050505
+1 0 0 0 0 5 5 6 48050506
+1 0 0 0 0 5 5 7 48050507
+1 0 0 0 0 5 5 8 48050502
+1 0 0 0 0 5 5 9 48050503
+
-"Time = 1.000000
--1.350000 48040406.0000000000000
--1.050000 48040407.0000000000000
--0.750000 48040402.0000000000000
--0.450000 48040403.0000000000000
--0.150000 48040404.0000000000000
-0.150000 48040405.0000000000000
-0.450000 48040406.0000000000000
-0.750000 48040407.0000000000000
-1.050000 48040402.0000000000000
-1.350000 48040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/fzz.xl b/CarpetAttic/Cart3dTest/test/periodic/fzz.xl
index 8d275bbc1..9c8f5cbf0 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/fzz.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic/fzz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz x (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 49000505
+0 0 0 0 0 1 5 5 49010505
+0 0 0 0 0 2 5 5 49020505
+0 0 0 0 0 3 5 5 49030505
+0 0 0 0 0 4 5 5 49040505
+0 0 0 0 0 5 5 5 49050505
+0 0 0 0 0 6 5 5 49060505
+0 0 0 0 0 7 5 5 49070505
+0 0 0 0 0 8 5 5 49080505
+0 0 0 0 0 9 5 5 49090505
-"Time = 0.000000
--1.350000 49000404.0000000000000
--1.050000 49010404.0000000000000
--0.750000 49020404.0000000000000
--0.450000 49030404.0000000000000
--0.150000 49040404.0000000000000
-0.150000 49050404.0000000000000
-0.450000 49060404.0000000000000
-0.750000 49070404.0000000000000
-1.050000 49080404.0000000000000
-1.350000 49090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 49000505
+1 0 0 0 0 1 5 5 49010505
+1 0 0 0 0 2 5 5 49020505
+1 0 0 0 0 3 5 5 49030505
+1 0 0 0 0 4 5 5 49040505
+1 0 0 0 0 5 5 5 49050505
+1 0 0 0 0 6 5 5 49060505
+1 0 0 0 0 7 5 5 49070505
+1 0 0 0 0 8 5 5 49080505
+1 0 0 0 0 9 5 5 49090505
+
-"Time = 1.000000
--1.350000 49000404.0000000000000
--1.050000 49010404.0000000000000
--0.750000 49020404.0000000000000
--0.450000 49030404.0000000000000
--0.150000 49040404.0000000000000
-0.150000 49050404.0000000000000
-0.450000 49060404.0000000000000
-0.750000 49070404.0000000000000
-1.050000 49080404.0000000000000
-1.350000 49090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/fzz.yl b/CarpetAttic/Cart3dTest/test/periodic/fzz.yl
index a10912a44..5ad50d331 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/fzz.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic/fzz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz y (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 49050005
+0 0 0 0 0 5 1 5 49050105
+0 0 0 0 0 5 2 5 49050205
+0 0 0 0 0 5 3 5 49050305
+0 0 0 0 0 5 4 5 49050405
+0 0 0 0 0 5 5 5 49050505
+0 0 0 0 0 5 6 5 49050605
+0 0 0 0 0 5 7 5 49050705
+0 0 0 0 0 5 8 5 49050805
+0 0 0 0 0 5 9 5 49050905
-"Time = 0.000000
--1.350000 49040004.0000000000000
--1.050000 49040104.0000000000000
--0.750000 49040204.0000000000000
--0.450000 49040304.0000000000000
--0.150000 49040404.0000000000000
-0.150000 49040504.0000000000000
-0.450000 49040604.0000000000000
-0.750000 49040704.0000000000000
-1.050000 49040804.0000000000000
-1.350000 49040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 49050805
+1 0 0 0 0 5 1 5 49050105
+1 0 0 0 0 5 2 5 49050205
+1 0 0 0 0 5 3 5 49050305
+1 0 0 0 0 5 4 5 49050405
+1 0 0 0 0 5 5 5 49050505
+1 0 0 0 0 5 6 5 49050605
+1 0 0 0 0 5 7 5 49050705
+1 0 0 0 0 5 8 5 49050805
+1 0 0 0 0 5 9 5 49050105
+
-"Time = 1.000000
--1.350000 49040804.0000000000000
--1.050000 49040104.0000000000000
--0.750000 49040204.0000000000000
--0.450000 49040304.0000000000000
--0.150000 49040404.0000000000000
-0.150000 49040504.0000000000000
-0.450000 49040604.0000000000000
-0.750000 49040704.0000000000000
-1.050000 49040804.0000000000000
-1.350000 49040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/fzz.zl b/CarpetAttic/Cart3dTest/test/periodic/fzz.zl
index dd584b72b..e361fad48 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/fzz.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic/fzz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz z (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 49050500
+0 0 0 0 0 5 5 1 49050501
+0 0 0 0 0 5 5 2 49050502
+0 0 0 0 0 5 5 3 49050503
+0 0 0 0 0 5 5 4 49050504
+0 0 0 0 0 5 5 5 49050505
+0 0 0 0 0 5 5 6 49050506
+0 0 0 0 0 5 5 7 49050507
+0 0 0 0 0 5 5 8 49050508
+0 0 0 0 0 5 5 9 49050509
-"Time = 0.000000
--1.350000 49040400.0000000000000
--1.050000 49040401.0000000000000
--0.750000 49040402.0000000000000
--0.450000 49040403.0000000000000
--0.150000 49040404.0000000000000
-0.150000 49040405.0000000000000
-0.450000 49040406.0000000000000
-0.750000 49040407.0000000000000
-1.050000 49040408.0000000000000
-1.350000 49040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 49050506
+1 0 0 0 0 5 5 1 49050507
+1 0 0 0 0 5 5 2 49050502
+1 0 0 0 0 5 5 3 49050503
+1 0 0 0 0 5 5 4 49050504
+1 0 0 0 0 5 5 5 49050505
+1 0 0 0 0 5 5 6 49050506
+1 0 0 0 0 5 5 7 49050507
+1 0 0 0 0 5 5 8 49050502
+1 0 0 0 0 5 5 9 49050503
+
-"Time = 1.000000
--1.350000 49040406.0000000000000
--1.050000 49040407.0000000000000
--0.750000 49040402.0000000000000
--0.450000 49040403.0000000000000
--0.150000 49040404.0000000000000
-0.150000 49040405.0000000000000
-0.450000 49040406.0000000000000
-0.750000 49040407.0000000000000
-1.050000 49040402.0000000000000
-1.350000 49040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/s.xl b/CarpetAttic/Cart3dTest/test/periodic/s.xl
index 043028545..14e43aa3e 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/s.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic/s.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::s x (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 1000505
+0 0 0 0 0 1 5 5 1010505
+0 0 0 0 0 2 5 5 1020505
+0 0 0 0 0 3 5 5 1030505
+0 0 0 0 0 4 5 5 1040505
+0 0 0 0 0 5 5 5 1050505
+0 0 0 0 0 6 5 5 1060505
+0 0 0 0 0 7 5 5 1070505
+0 0 0 0 0 8 5 5 1080505
+0 0 0 0 0 9 5 5 1090505
-"Time = 0.000000
--1.350000 1000404.0000000000000
--1.050000 1010404.0000000000000
--0.750000 1020404.0000000000000
--0.450000 1030404.0000000000000
--0.150000 1040404.0000000000000
-0.150000 1050404.0000000000000
-0.450000 1060404.0000000000000
-0.750000 1070404.0000000000000
-1.050000 1080404.0000000000000
-1.350000 1090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 1000505
+1 0 0 0 0 1 5 5 1010505
+1 0 0 0 0 2 5 5 1020505
+1 0 0 0 0 3 5 5 1030505
+1 0 0 0 0 4 5 5 1040505
+1 0 0 0 0 5 5 5 1050505
+1 0 0 0 0 6 5 5 1060505
+1 0 0 0 0 7 5 5 1070505
+1 0 0 0 0 8 5 5 1080505
+1 0 0 0 0 9 5 5 1090505
+
-"Time = 1.000000
--1.350000 1000404.0000000000000
--1.050000 1010404.0000000000000
--0.750000 1020404.0000000000000
--0.450000 1030404.0000000000000
--0.150000 1040404.0000000000000
-0.150000 1050404.0000000000000
-0.450000 1060404.0000000000000
-0.750000 1070404.0000000000000
-1.050000 1080404.0000000000000
-1.350000 1090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/s.yl b/CarpetAttic/Cart3dTest/test/periodic/s.yl
index e4a37535a..d06a6df59 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/s.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic/s.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::s y (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 1050005
+0 0 0 0 0 5 1 5 1050105
+0 0 0 0 0 5 2 5 1050205
+0 0 0 0 0 5 3 5 1050305
+0 0 0 0 0 5 4 5 1050405
+0 0 0 0 0 5 5 5 1050505
+0 0 0 0 0 5 6 5 1050605
+0 0 0 0 0 5 7 5 1050705
+0 0 0 0 0 5 8 5 1050805
+0 0 0 0 0 5 9 5 1050905
-"Time = 0.000000
--1.350000 1040004.0000000000000
--1.050000 1040104.0000000000000
--0.750000 1040204.0000000000000
--0.450000 1040304.0000000000000
--0.150000 1040404.0000000000000
-0.150000 1040504.0000000000000
-0.450000 1040604.0000000000000
-0.750000 1040704.0000000000000
-1.050000 1040804.0000000000000
-1.350000 1040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 1050805
+1 0 0 0 0 5 1 5 1050105
+1 0 0 0 0 5 2 5 1050205
+1 0 0 0 0 5 3 5 1050305
+1 0 0 0 0 5 4 5 1050405
+1 0 0 0 0 5 5 5 1050505
+1 0 0 0 0 5 6 5 1050605
+1 0 0 0 0 5 7 5 1050705
+1 0 0 0 0 5 8 5 1050805
+1 0 0 0 0 5 9 5 1050105
+
-"Time = 1.000000
--1.350000 1040804.0000000000000
--1.050000 1040104.0000000000000
--0.750000 1040204.0000000000000
--0.450000 1040304.0000000000000
--0.150000 1040404.0000000000000
-0.150000 1040504.0000000000000
-0.450000 1040604.0000000000000
-0.750000 1040704.0000000000000
-1.050000 1040804.0000000000000
-1.350000 1040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/s.zl b/CarpetAttic/Cart3dTest/test/periodic/s.zl
index 959765716..6735790f7 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/s.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic/s.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::s z (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 1050500
+0 0 0 0 0 5 5 1 1050501
+0 0 0 0 0 5 5 2 1050502
+0 0 0 0 0 5 5 3 1050503
+0 0 0 0 0 5 5 4 1050504
+0 0 0 0 0 5 5 5 1050505
+0 0 0 0 0 5 5 6 1050506
+0 0 0 0 0 5 5 7 1050507
+0 0 0 0 0 5 5 8 1050508
+0 0 0 0 0 5 5 9 1050509
-"Time = 0.000000
--1.350000 1040400.0000000000000
--1.050000 1040401.0000000000000
--0.750000 1040402.0000000000000
--0.450000 1040403.0000000000000
--0.150000 1040404.0000000000000
-0.150000 1040405.0000000000000
-0.450000 1040406.0000000000000
-0.750000 1040407.0000000000000
-1.050000 1040408.0000000000000
-1.350000 1040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 1050506
+1 0 0 0 0 5 5 1 1050507
+1 0 0 0 0 5 5 2 1050502
+1 0 0 0 0 5 5 3 1050503
+1 0 0 0 0 5 5 4 1050504
+1 0 0 0 0 5 5 5 1050505
+1 0 0 0 0 5 5 6 1050506
+1 0 0 0 0 5 5 7 1050507
+1 0 0 0 0 5 5 8 1050502
+1 0 0 0 0 5 5 9 1050503
+
-"Time = 1.000000
--1.350000 1040406.0000000000000
--1.050000 1040407.0000000000000
--0.750000 1040402.0000000000000
--0.450000 1040403.0000000000000
--0.150000 1040404.0000000000000
-0.150000 1040405.0000000000000
-0.450000 1040406.0000000000000
-0.750000 1040407.0000000000000
-1.050000 1040402.0000000000000
-1.350000 1040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/spher3d_r.xl b/CarpetAttic/Cart3dTest/test/periodic/spher3d_r.xl
index 2865c92e4..b331c2bf4 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/spher3d_r.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic/spher3d_r.xl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r x (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 1.36656503687164
+0 0 0 0 0 1 5 5 1.07121426428143
+0 0 0 0 0 2 5 5 0.779422863405995
+0 0 0 0 0 3 5 5 0.49749371855331
+0 0 0 0 0 4 5 5 0.259807621135332
+0 0 0 0 0 5 5 5 0.259807621135332
+0 0 0 0 0 6 5 5 0.49749371855331
+0 0 0 0 0 7 5 5 0.779422863405995
+0 0 0 0 0 8 5 5 1.07121426428143
+0 0 0 0 0 9 5 5 1.36656503687164
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 1.36656503687164
+1 0 0 0 0 1 5 5 1.07121426428143
+1 0 0 0 0 2 5 5 0.779422863405995
+1 0 0 0 0 3 5 5 0.49749371855331
+1 0 0 0 0 4 5 5 0.259807621135332
+1 0 0 0 0 5 5 5 0.259807621135332
+1 0 0 0 0 6 5 5 0.49749371855331
+1 0 0 0 0 7 5 5 0.779422863405995
+1 0 0 0 0 8 5 5 1.07121426428143
+1 0 0 0 0 9 5 5 1.36656503687164
+
-"Time = 1.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
diff --git a/CarpetAttic/Cart3dTest/test/periodic/spher3d_r.yl b/CarpetAttic/Cart3dTest/test/periodic/spher3d_r.yl
index 2865c92e4..8ca57fd44 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/spher3d_r.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic/spher3d_r.yl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r y (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 1.36656503687164
+0 0 0 0 0 5 1 5 1.07121426428143
+0 0 0 0 0 5 2 5 0.779422863405995
+0 0 0 0 0 5 3 5 0.49749371855331
+0 0 0 0 0 5 4 5 0.259807621135332
+0 0 0 0 0 5 5 5 0.259807621135332
+0 0 0 0 0 5 6 5 0.49749371855331
+0 0 0 0 0 5 7 5 0.779422863405995
+0 0 0 0 0 5 8 5 1.07121426428143
+0 0 0 0 0 5 9 5 1.36656503687164
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 1.36656503687164
+1 0 0 0 0 5 1 5 1.07121426428143
+1 0 0 0 0 5 2 5 0.779422863405995
+1 0 0 0 0 5 3 5 0.49749371855331
+1 0 0 0 0 5 4 5 0.259807621135332
+1 0 0 0 0 5 5 5 0.259807621135332
+1 0 0 0 0 5 6 5 0.49749371855331
+1 0 0 0 0 5 7 5 0.779422863405995
+1 0 0 0 0 5 8 5 1.07121426428143
+1 0 0 0 0 5 9 5 1.36656503687164
+
-"Time = 1.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
diff --git a/CarpetAttic/Cart3dTest/test/periodic/spher3d_r.zl b/CarpetAttic/Cart3dTest/test/periodic/spher3d_r.zl
index 2865c92e4..677631008 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/spher3d_r.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic/spher3d_r.zl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r z (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 1.36656503687164
+0 0 0 0 0 5 5 1 1.07121426428143
+0 0 0 0 0 5 5 2 0.779422863405995
+0 0 0 0 0 5 5 3 0.49749371855331
+0 0 0 0 0 5 5 4 0.259807621135332
+0 0 0 0 0 5 5 5 0.259807621135332
+0 0 0 0 0 5 5 6 0.49749371855331
+0 0 0 0 0 5 5 7 0.779422863405995
+0 0 0 0 0 5 5 8 1.07121426428143
+0 0 0 0 0 5 5 9 1.36656503687164
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 1.36656503687164
+1 0 0 0 0 5 5 1 1.07121426428143
+1 0 0 0 0 5 5 2 0.779422863405995
+1 0 0 0 0 5 5 3 0.49749371855331
+1 0 0 0 0 5 5 4 0.259807621135332
+1 0 0 0 0 5 5 5 0.259807621135332
+1 0 0 0 0 5 5 6 0.49749371855331
+1 0 0 0 0 5 5 7 0.779422863405995
+1 0 0 0 0 5 5 8 1.07121426428143
+1 0 0 0 0 5 5 9 1.36656503687164
+
-"Time = 1.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
diff --git a/CarpetAttic/Cart3dTest/test/periodic/txx.xl b/CarpetAttic/Cart3dTest/test/periodic/txx.xl
index 1cfbf4027..ec49b7513 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/txx.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic/txx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx x (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 21000505
+0 0 0 0 0 1 5 5 21010505
+0 0 0 0 0 2 5 5 21020505
+0 0 0 0 0 3 5 5 21030505
+0 0 0 0 0 4 5 5 21040505
+0 0 0 0 0 5 5 5 21050505
+0 0 0 0 0 6 5 5 21060505
+0 0 0 0 0 7 5 5 21070505
+0 0 0 0 0 8 5 5 21080505
+0 0 0 0 0 9 5 5 21090505
-"Time = 0.000000
--1.350000 21000404.0000000000000
--1.050000 21010404.0000000000000
--0.750000 21020404.0000000000000
--0.450000 21030404.0000000000000
--0.150000 21040404.0000000000000
-0.150000 21050404.0000000000000
-0.450000 21060404.0000000000000
-0.750000 21070404.0000000000000
-1.050000 21080404.0000000000000
-1.350000 21090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 21000505
+1 0 0 0 0 1 5 5 21010505
+1 0 0 0 0 2 5 5 21020505
+1 0 0 0 0 3 5 5 21030505
+1 0 0 0 0 4 5 5 21040505
+1 0 0 0 0 5 5 5 21050505
+1 0 0 0 0 6 5 5 21060505
+1 0 0 0 0 7 5 5 21070505
+1 0 0 0 0 8 5 5 21080505
+1 0 0 0 0 9 5 5 21090505
+
-"Time = 1.000000
--1.350000 21000404.0000000000000
--1.050000 21010404.0000000000000
--0.750000 21020404.0000000000000
--0.450000 21030404.0000000000000
--0.150000 21040404.0000000000000
-0.150000 21050404.0000000000000
-0.450000 21060404.0000000000000
-0.750000 21070404.0000000000000
-1.050000 21080404.0000000000000
-1.350000 21090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/txx.yl b/CarpetAttic/Cart3dTest/test/periodic/txx.yl
index a72705c5c..6c2b5ac85 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/txx.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic/txx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx y (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 21050005
+0 0 0 0 0 5 1 5 21050105
+0 0 0 0 0 5 2 5 21050205
+0 0 0 0 0 5 3 5 21050305
+0 0 0 0 0 5 4 5 21050405
+0 0 0 0 0 5 5 5 21050505
+0 0 0 0 0 5 6 5 21050605
+0 0 0 0 0 5 7 5 21050705
+0 0 0 0 0 5 8 5 21050805
+0 0 0 0 0 5 9 5 21050905
-"Time = 0.000000
--1.350000 21040004.0000000000000
--1.050000 21040104.0000000000000
--0.750000 21040204.0000000000000
--0.450000 21040304.0000000000000
--0.150000 21040404.0000000000000
-0.150000 21040504.0000000000000
-0.450000 21040604.0000000000000
-0.750000 21040704.0000000000000
-1.050000 21040804.0000000000000
-1.350000 21040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 21050805
+1 0 0 0 0 5 1 5 21050105
+1 0 0 0 0 5 2 5 21050205
+1 0 0 0 0 5 3 5 21050305
+1 0 0 0 0 5 4 5 21050405
+1 0 0 0 0 5 5 5 21050505
+1 0 0 0 0 5 6 5 21050605
+1 0 0 0 0 5 7 5 21050705
+1 0 0 0 0 5 8 5 21050805
+1 0 0 0 0 5 9 5 21050105
+
-"Time = 1.000000
--1.350000 21040804.0000000000000
--1.050000 21040104.0000000000000
--0.750000 21040204.0000000000000
--0.450000 21040304.0000000000000
--0.150000 21040404.0000000000000
-0.150000 21040504.0000000000000
-0.450000 21040604.0000000000000
-0.750000 21040704.0000000000000
-1.050000 21040804.0000000000000
-1.350000 21040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/txx.zl b/CarpetAttic/Cart3dTest/test/periodic/txx.zl
index 8485c6026..9d68b5276 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/txx.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic/txx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx z (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 21050500
+0 0 0 0 0 5 5 1 21050501
+0 0 0 0 0 5 5 2 21050502
+0 0 0 0 0 5 5 3 21050503
+0 0 0 0 0 5 5 4 21050504
+0 0 0 0 0 5 5 5 21050505
+0 0 0 0 0 5 5 6 21050506
+0 0 0 0 0 5 5 7 21050507
+0 0 0 0 0 5 5 8 21050508
+0 0 0 0 0 5 5 9 21050509
-"Time = 0.000000
--1.350000 21040400.0000000000000
--1.050000 21040401.0000000000000
--0.750000 21040402.0000000000000
--0.450000 21040403.0000000000000
--0.150000 21040404.0000000000000
-0.150000 21040405.0000000000000
-0.450000 21040406.0000000000000
-0.750000 21040407.0000000000000
-1.050000 21040408.0000000000000
-1.350000 21040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 21050506
+1 0 0 0 0 5 5 1 21050507
+1 0 0 0 0 5 5 2 21050502
+1 0 0 0 0 5 5 3 21050503
+1 0 0 0 0 5 5 4 21050504
+1 0 0 0 0 5 5 5 21050505
+1 0 0 0 0 5 5 6 21050506
+1 0 0 0 0 5 5 7 21050507
+1 0 0 0 0 5 5 8 21050502
+1 0 0 0 0 5 5 9 21050503
+
-"Time = 1.000000
--1.350000 21040406.0000000000000
--1.050000 21040407.0000000000000
--0.750000 21040402.0000000000000
--0.450000 21040403.0000000000000
--0.150000 21040404.0000000000000
-0.150000 21040405.0000000000000
-0.450000 21040406.0000000000000
-0.750000 21040407.0000000000000
-1.050000 21040402.0000000000000
-1.350000 21040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/txy.xl b/CarpetAttic/Cart3dTest/test/periodic/txy.xl
index d6312820e..c0a04db3d 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/txy.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic/txy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy x (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 22000505
+0 0 0 0 0 1 5 5 22010505
+0 0 0 0 0 2 5 5 22020505
+0 0 0 0 0 3 5 5 22030505
+0 0 0 0 0 4 5 5 22040505
+0 0 0 0 0 5 5 5 22050505
+0 0 0 0 0 6 5 5 22060505
+0 0 0 0 0 7 5 5 22070505
+0 0 0 0 0 8 5 5 22080505
+0 0 0 0 0 9 5 5 22090505
-"Time = 0.000000
--1.350000 22000404.0000000000000
--1.050000 22010404.0000000000000
--0.750000 22020404.0000000000000
--0.450000 22030404.0000000000000
--0.150000 22040404.0000000000000
-0.150000 22050404.0000000000000
-0.450000 22060404.0000000000000
-0.750000 22070404.0000000000000
-1.050000 22080404.0000000000000
-1.350000 22090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 22000505
+1 0 0 0 0 1 5 5 22010505
+1 0 0 0 0 2 5 5 22020505
+1 0 0 0 0 3 5 5 22030505
+1 0 0 0 0 4 5 5 22040505
+1 0 0 0 0 5 5 5 22050505
+1 0 0 0 0 6 5 5 22060505
+1 0 0 0 0 7 5 5 22070505
+1 0 0 0 0 8 5 5 22080505
+1 0 0 0 0 9 5 5 22090505
+
-"Time = 1.000000
--1.350000 22000404.0000000000000
--1.050000 22010404.0000000000000
--0.750000 22020404.0000000000000
--0.450000 22030404.0000000000000
--0.150000 22040404.0000000000000
-0.150000 22050404.0000000000000
-0.450000 22060404.0000000000000
-0.750000 22070404.0000000000000
-1.050000 22080404.0000000000000
-1.350000 22090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/txy.yl b/CarpetAttic/Cart3dTest/test/periodic/txy.yl
index 492b22939..60ca70da9 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/txy.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic/txy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy y (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 22050005
+0 0 0 0 0 5 1 5 22050105
+0 0 0 0 0 5 2 5 22050205
+0 0 0 0 0 5 3 5 22050305
+0 0 0 0 0 5 4 5 22050405
+0 0 0 0 0 5 5 5 22050505
+0 0 0 0 0 5 6 5 22050605
+0 0 0 0 0 5 7 5 22050705
+0 0 0 0 0 5 8 5 22050805
+0 0 0 0 0 5 9 5 22050905
-"Time = 0.000000
--1.350000 22040004.0000000000000
--1.050000 22040104.0000000000000
--0.750000 22040204.0000000000000
--0.450000 22040304.0000000000000
--0.150000 22040404.0000000000000
-0.150000 22040504.0000000000000
-0.450000 22040604.0000000000000
-0.750000 22040704.0000000000000
-1.050000 22040804.0000000000000
-1.350000 22040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 22050805
+1 0 0 0 0 5 1 5 22050105
+1 0 0 0 0 5 2 5 22050205
+1 0 0 0 0 5 3 5 22050305
+1 0 0 0 0 5 4 5 22050405
+1 0 0 0 0 5 5 5 22050505
+1 0 0 0 0 5 6 5 22050605
+1 0 0 0 0 5 7 5 22050705
+1 0 0 0 0 5 8 5 22050805
+1 0 0 0 0 5 9 5 22050105
+
-"Time = 1.000000
--1.350000 22040804.0000000000000
--1.050000 22040104.0000000000000
--0.750000 22040204.0000000000000
--0.450000 22040304.0000000000000
--0.150000 22040404.0000000000000
-0.150000 22040504.0000000000000
-0.450000 22040604.0000000000000
-0.750000 22040704.0000000000000
-1.050000 22040804.0000000000000
-1.350000 22040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/txy.zl b/CarpetAttic/Cart3dTest/test/periodic/txy.zl
index b33c5be11..b517ac253 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/txy.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic/txy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy z (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 22050500
+0 0 0 0 0 5 5 1 22050501
+0 0 0 0 0 5 5 2 22050502
+0 0 0 0 0 5 5 3 22050503
+0 0 0 0 0 5 5 4 22050504
+0 0 0 0 0 5 5 5 22050505
+0 0 0 0 0 5 5 6 22050506
+0 0 0 0 0 5 5 7 22050507
+0 0 0 0 0 5 5 8 22050508
+0 0 0 0 0 5 5 9 22050509
-"Time = 0.000000
--1.350000 22040400.0000000000000
--1.050000 22040401.0000000000000
--0.750000 22040402.0000000000000
--0.450000 22040403.0000000000000
--0.150000 22040404.0000000000000
-0.150000 22040405.0000000000000
-0.450000 22040406.0000000000000
-0.750000 22040407.0000000000000
-1.050000 22040408.0000000000000
-1.350000 22040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 22050506
+1 0 0 0 0 5 5 1 22050507
+1 0 0 0 0 5 5 2 22050502
+1 0 0 0 0 5 5 3 22050503
+1 0 0 0 0 5 5 4 22050504
+1 0 0 0 0 5 5 5 22050505
+1 0 0 0 0 5 5 6 22050506
+1 0 0 0 0 5 5 7 22050507
+1 0 0 0 0 5 5 8 22050502
+1 0 0 0 0 5 5 9 22050503
+
-"Time = 1.000000
--1.350000 22040406.0000000000000
--1.050000 22040407.0000000000000
--0.750000 22040402.0000000000000
--0.450000 22040403.0000000000000
--0.150000 22040404.0000000000000
-0.150000 22040405.0000000000000
-0.450000 22040406.0000000000000
-0.750000 22040407.0000000000000
-1.050000 22040402.0000000000000
-1.350000 22040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/txz.xl b/CarpetAttic/Cart3dTest/test/periodic/txz.xl
index ef2bcc682..ef056f783 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/txz.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic/txz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz x (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 23000505
+0 0 0 0 0 1 5 5 23010505
+0 0 0 0 0 2 5 5 23020505
+0 0 0 0 0 3 5 5 23030505
+0 0 0 0 0 4 5 5 23040505
+0 0 0 0 0 5 5 5 23050505
+0 0 0 0 0 6 5 5 23060505
+0 0 0 0 0 7 5 5 23070505
+0 0 0 0 0 8 5 5 23080505
+0 0 0 0 0 9 5 5 23090505
-"Time = 0.000000
--1.350000 23000404.0000000000000
--1.050000 23010404.0000000000000
--0.750000 23020404.0000000000000
--0.450000 23030404.0000000000000
--0.150000 23040404.0000000000000
-0.150000 23050404.0000000000000
-0.450000 23060404.0000000000000
-0.750000 23070404.0000000000000
-1.050000 23080404.0000000000000
-1.350000 23090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 23000505
+1 0 0 0 0 1 5 5 23010505
+1 0 0 0 0 2 5 5 23020505
+1 0 0 0 0 3 5 5 23030505
+1 0 0 0 0 4 5 5 23040505
+1 0 0 0 0 5 5 5 23050505
+1 0 0 0 0 6 5 5 23060505
+1 0 0 0 0 7 5 5 23070505
+1 0 0 0 0 8 5 5 23080505
+1 0 0 0 0 9 5 5 23090505
+
-"Time = 1.000000
--1.350000 23000404.0000000000000
--1.050000 23010404.0000000000000
--0.750000 23020404.0000000000000
--0.450000 23030404.0000000000000
--0.150000 23040404.0000000000000
-0.150000 23050404.0000000000000
-0.450000 23060404.0000000000000
-0.750000 23070404.0000000000000
-1.050000 23080404.0000000000000
-1.350000 23090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/txz.yl b/CarpetAttic/Cart3dTest/test/periodic/txz.yl
index 19acffcb8..a0b82ff0e 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/txz.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic/txz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz y (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 23050005
+0 0 0 0 0 5 1 5 23050105
+0 0 0 0 0 5 2 5 23050205
+0 0 0 0 0 5 3 5 23050305
+0 0 0 0 0 5 4 5 23050405
+0 0 0 0 0 5 5 5 23050505
+0 0 0 0 0 5 6 5 23050605
+0 0 0 0 0 5 7 5 23050705
+0 0 0 0 0 5 8 5 23050805
+0 0 0 0 0 5 9 5 23050905
-"Time = 0.000000
--1.350000 23040004.0000000000000
--1.050000 23040104.0000000000000
--0.750000 23040204.0000000000000
--0.450000 23040304.0000000000000
--0.150000 23040404.0000000000000
-0.150000 23040504.0000000000000
-0.450000 23040604.0000000000000
-0.750000 23040704.0000000000000
-1.050000 23040804.0000000000000
-1.350000 23040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 23050805
+1 0 0 0 0 5 1 5 23050105
+1 0 0 0 0 5 2 5 23050205
+1 0 0 0 0 5 3 5 23050305
+1 0 0 0 0 5 4 5 23050405
+1 0 0 0 0 5 5 5 23050505
+1 0 0 0 0 5 6 5 23050605
+1 0 0 0 0 5 7 5 23050705
+1 0 0 0 0 5 8 5 23050805
+1 0 0 0 0 5 9 5 23050105
+
-"Time = 1.000000
--1.350000 23040804.0000000000000
--1.050000 23040104.0000000000000
--0.750000 23040204.0000000000000
--0.450000 23040304.0000000000000
--0.150000 23040404.0000000000000
-0.150000 23040504.0000000000000
-0.450000 23040604.0000000000000
-0.750000 23040704.0000000000000
-1.050000 23040804.0000000000000
-1.350000 23040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/txz.zl b/CarpetAttic/Cart3dTest/test/periodic/txz.zl
index 5c52ae1d2..cac4ebe2d 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/txz.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic/txz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz z (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 23050500
+0 0 0 0 0 5 5 1 23050501
+0 0 0 0 0 5 5 2 23050502
+0 0 0 0 0 5 5 3 23050503
+0 0 0 0 0 5 5 4 23050504
+0 0 0 0 0 5 5 5 23050505
+0 0 0 0 0 5 5 6 23050506
+0 0 0 0 0 5 5 7 23050507
+0 0 0 0 0 5 5 8 23050508
+0 0 0 0 0 5 5 9 23050509
-"Time = 0.000000
--1.350000 23040400.0000000000000
--1.050000 23040401.0000000000000
--0.750000 23040402.0000000000000
--0.450000 23040403.0000000000000
--0.150000 23040404.0000000000000
-0.150000 23040405.0000000000000
-0.450000 23040406.0000000000000
-0.750000 23040407.0000000000000
-1.050000 23040408.0000000000000
-1.350000 23040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 23050506
+1 0 0 0 0 5 5 1 23050507
+1 0 0 0 0 5 5 2 23050502
+1 0 0 0 0 5 5 3 23050503
+1 0 0 0 0 5 5 4 23050504
+1 0 0 0 0 5 5 5 23050505
+1 0 0 0 0 5 5 6 23050506
+1 0 0 0 0 5 5 7 23050507
+1 0 0 0 0 5 5 8 23050502
+1 0 0 0 0 5 5 9 23050503
+
-"Time = 1.000000
--1.350000 23040406.0000000000000
--1.050000 23040407.0000000000000
--0.750000 23040402.0000000000000
--0.450000 23040403.0000000000000
--0.150000 23040404.0000000000000
-0.150000 23040405.0000000000000
-0.450000 23040406.0000000000000
-0.750000 23040407.0000000000000
-1.050000 23040402.0000000000000
-1.350000 23040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/tyy.xl b/CarpetAttic/Cart3dTest/test/periodic/tyy.xl
index 6a34694eb..6a8ea71c4 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/tyy.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic/tyy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy x (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 24000505
+0 0 0 0 0 1 5 5 24010505
+0 0 0 0 0 2 5 5 24020505
+0 0 0 0 0 3 5 5 24030505
+0 0 0 0 0 4 5 5 24040505
+0 0 0 0 0 5 5 5 24050505
+0 0 0 0 0 6 5 5 24060505
+0 0 0 0 0 7 5 5 24070505
+0 0 0 0 0 8 5 5 24080505
+0 0 0 0 0 9 5 5 24090505
-"Time = 0.000000
--1.350000 24000404.0000000000000
--1.050000 24010404.0000000000000
--0.750000 24020404.0000000000000
--0.450000 24030404.0000000000000
--0.150000 24040404.0000000000000
-0.150000 24050404.0000000000000
-0.450000 24060404.0000000000000
-0.750000 24070404.0000000000000
-1.050000 24080404.0000000000000
-1.350000 24090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 24000505
+1 0 0 0 0 1 5 5 24010505
+1 0 0 0 0 2 5 5 24020505
+1 0 0 0 0 3 5 5 24030505
+1 0 0 0 0 4 5 5 24040505
+1 0 0 0 0 5 5 5 24050505
+1 0 0 0 0 6 5 5 24060505
+1 0 0 0 0 7 5 5 24070505
+1 0 0 0 0 8 5 5 24080505
+1 0 0 0 0 9 5 5 24090505
+
-"Time = 1.000000
--1.350000 24000404.0000000000000
--1.050000 24010404.0000000000000
--0.750000 24020404.0000000000000
--0.450000 24030404.0000000000000
--0.150000 24040404.0000000000000
-0.150000 24050404.0000000000000
-0.450000 24060404.0000000000000
-0.750000 24070404.0000000000000
-1.050000 24080404.0000000000000
-1.350000 24090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/tyy.yl b/CarpetAttic/Cart3dTest/test/periodic/tyy.yl
index d5e9a5f00..e5167e1ee 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/tyy.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic/tyy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy y (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 24050005
+0 0 0 0 0 5 1 5 24050105
+0 0 0 0 0 5 2 5 24050205
+0 0 0 0 0 5 3 5 24050305
+0 0 0 0 0 5 4 5 24050405
+0 0 0 0 0 5 5 5 24050505
+0 0 0 0 0 5 6 5 24050605
+0 0 0 0 0 5 7 5 24050705
+0 0 0 0 0 5 8 5 24050805
+0 0 0 0 0 5 9 5 24050905
-"Time = 0.000000
--1.350000 24040004.0000000000000
--1.050000 24040104.0000000000000
--0.750000 24040204.0000000000000
--0.450000 24040304.0000000000000
--0.150000 24040404.0000000000000
-0.150000 24040504.0000000000000
-0.450000 24040604.0000000000000
-0.750000 24040704.0000000000000
-1.050000 24040804.0000000000000
-1.350000 24040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 24050805
+1 0 0 0 0 5 1 5 24050105
+1 0 0 0 0 5 2 5 24050205
+1 0 0 0 0 5 3 5 24050305
+1 0 0 0 0 5 4 5 24050405
+1 0 0 0 0 5 5 5 24050505
+1 0 0 0 0 5 6 5 24050605
+1 0 0 0 0 5 7 5 24050705
+1 0 0 0 0 5 8 5 24050805
+1 0 0 0 0 5 9 5 24050105
+
-"Time = 1.000000
--1.350000 24040804.0000000000000
--1.050000 24040104.0000000000000
--0.750000 24040204.0000000000000
--0.450000 24040304.0000000000000
--0.150000 24040404.0000000000000
-0.150000 24040504.0000000000000
-0.450000 24040604.0000000000000
-0.750000 24040704.0000000000000
-1.050000 24040804.0000000000000
-1.350000 24040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/tyy.zl b/CarpetAttic/Cart3dTest/test/periodic/tyy.zl
index 5337648f6..0142d96f9 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/tyy.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic/tyy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy z (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 24050500
+0 0 0 0 0 5 5 1 24050501
+0 0 0 0 0 5 5 2 24050502
+0 0 0 0 0 5 5 3 24050503
+0 0 0 0 0 5 5 4 24050504
+0 0 0 0 0 5 5 5 24050505
+0 0 0 0 0 5 5 6 24050506
+0 0 0 0 0 5 5 7 24050507
+0 0 0 0 0 5 5 8 24050508
+0 0 0 0 0 5 5 9 24050509
-"Time = 0.000000
--1.350000 24040400.0000000000000
--1.050000 24040401.0000000000000
--0.750000 24040402.0000000000000
--0.450000 24040403.0000000000000
--0.150000 24040404.0000000000000
-0.150000 24040405.0000000000000
-0.450000 24040406.0000000000000
-0.750000 24040407.0000000000000
-1.050000 24040408.0000000000000
-1.350000 24040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 24050506
+1 0 0 0 0 5 5 1 24050507
+1 0 0 0 0 5 5 2 24050502
+1 0 0 0 0 5 5 3 24050503
+1 0 0 0 0 5 5 4 24050504
+1 0 0 0 0 5 5 5 24050505
+1 0 0 0 0 5 5 6 24050506
+1 0 0 0 0 5 5 7 24050507
+1 0 0 0 0 5 5 8 24050502
+1 0 0 0 0 5 5 9 24050503
+
-"Time = 1.000000
--1.350000 24040406.0000000000000
--1.050000 24040407.0000000000000
--0.750000 24040402.0000000000000
--0.450000 24040403.0000000000000
--0.150000 24040404.0000000000000
-0.150000 24040405.0000000000000
-0.450000 24040406.0000000000000
-0.750000 24040407.0000000000000
-1.050000 24040402.0000000000000
-1.350000 24040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/tyz.xl b/CarpetAttic/Cart3dTest/test/periodic/tyz.xl
index eceab34fe..011e5ce29 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/tyz.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic/tyz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz x (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 25000505
+0 0 0 0 0 1 5 5 25010505
+0 0 0 0 0 2 5 5 25020505
+0 0 0 0 0 3 5 5 25030505
+0 0 0 0 0 4 5 5 25040505
+0 0 0 0 0 5 5 5 25050505
+0 0 0 0 0 6 5 5 25060505
+0 0 0 0 0 7 5 5 25070505
+0 0 0 0 0 8 5 5 25080505
+0 0 0 0 0 9 5 5 25090505
-"Time = 0.000000
--1.350000 25000404.0000000000000
--1.050000 25010404.0000000000000
--0.750000 25020404.0000000000000
--0.450000 25030404.0000000000000
--0.150000 25040404.0000000000000
-0.150000 25050404.0000000000000
-0.450000 25060404.0000000000000
-0.750000 25070404.0000000000000
-1.050000 25080404.0000000000000
-1.350000 25090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 25000505
+1 0 0 0 0 1 5 5 25010505
+1 0 0 0 0 2 5 5 25020505
+1 0 0 0 0 3 5 5 25030505
+1 0 0 0 0 4 5 5 25040505
+1 0 0 0 0 5 5 5 25050505
+1 0 0 0 0 6 5 5 25060505
+1 0 0 0 0 7 5 5 25070505
+1 0 0 0 0 8 5 5 25080505
+1 0 0 0 0 9 5 5 25090505
+
-"Time = 1.000000
--1.350000 25000404.0000000000000
--1.050000 25010404.0000000000000
--0.750000 25020404.0000000000000
--0.450000 25030404.0000000000000
--0.150000 25040404.0000000000000
-0.150000 25050404.0000000000000
-0.450000 25060404.0000000000000
-0.750000 25070404.0000000000000
-1.050000 25080404.0000000000000
-1.350000 25090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/tyz.yl b/CarpetAttic/Cart3dTest/test/periodic/tyz.yl
index 8a7a31c29..737aaf03b 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/tyz.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic/tyz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz y (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 25050005
+0 0 0 0 0 5 1 5 25050105
+0 0 0 0 0 5 2 5 25050205
+0 0 0 0 0 5 3 5 25050305
+0 0 0 0 0 5 4 5 25050405
+0 0 0 0 0 5 5 5 25050505
+0 0 0 0 0 5 6 5 25050605
+0 0 0 0 0 5 7 5 25050705
+0 0 0 0 0 5 8 5 25050805
+0 0 0 0 0 5 9 5 25050905
-"Time = 0.000000
--1.350000 25040004.0000000000000
--1.050000 25040104.0000000000000
--0.750000 25040204.0000000000000
--0.450000 25040304.0000000000000
--0.150000 25040404.0000000000000
-0.150000 25040504.0000000000000
-0.450000 25040604.0000000000000
-0.750000 25040704.0000000000000
-1.050000 25040804.0000000000000
-1.350000 25040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 25050805
+1 0 0 0 0 5 1 5 25050105
+1 0 0 0 0 5 2 5 25050205
+1 0 0 0 0 5 3 5 25050305
+1 0 0 0 0 5 4 5 25050405
+1 0 0 0 0 5 5 5 25050505
+1 0 0 0 0 5 6 5 25050605
+1 0 0 0 0 5 7 5 25050705
+1 0 0 0 0 5 8 5 25050805
+1 0 0 0 0 5 9 5 25050105
+
-"Time = 1.000000
--1.350000 25040804.0000000000000
--1.050000 25040104.0000000000000
--0.750000 25040204.0000000000000
--0.450000 25040304.0000000000000
--0.150000 25040404.0000000000000
-0.150000 25040504.0000000000000
-0.450000 25040604.0000000000000
-0.750000 25040704.0000000000000
-1.050000 25040804.0000000000000
-1.350000 25040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/tyz.zl b/CarpetAttic/Cart3dTest/test/periodic/tyz.zl
index 399c71fd0..2141b37d3 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/tyz.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic/tyz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz z (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 25050500
+0 0 0 0 0 5 5 1 25050501
+0 0 0 0 0 5 5 2 25050502
+0 0 0 0 0 5 5 3 25050503
+0 0 0 0 0 5 5 4 25050504
+0 0 0 0 0 5 5 5 25050505
+0 0 0 0 0 5 5 6 25050506
+0 0 0 0 0 5 5 7 25050507
+0 0 0 0 0 5 5 8 25050508
+0 0 0 0 0 5 5 9 25050509
-"Time = 0.000000
--1.350000 25040400.0000000000000
--1.050000 25040401.0000000000000
--0.750000 25040402.0000000000000
--0.450000 25040403.0000000000000
--0.150000 25040404.0000000000000
-0.150000 25040405.0000000000000
-0.450000 25040406.0000000000000
-0.750000 25040407.0000000000000
-1.050000 25040408.0000000000000
-1.350000 25040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 25050506
+1 0 0 0 0 5 5 1 25050507
+1 0 0 0 0 5 5 2 25050502
+1 0 0 0 0 5 5 3 25050503
+1 0 0 0 0 5 5 4 25050504
+1 0 0 0 0 5 5 5 25050505
+1 0 0 0 0 5 5 6 25050506
+1 0 0 0 0 5 5 7 25050507
+1 0 0 0 0 5 5 8 25050502
+1 0 0 0 0 5 5 9 25050503
+
-"Time = 1.000000
--1.350000 25040406.0000000000000
--1.050000 25040407.0000000000000
--0.750000 25040402.0000000000000
--0.450000 25040403.0000000000000
--0.150000 25040404.0000000000000
-0.150000 25040405.0000000000000
-0.450000 25040406.0000000000000
-0.750000 25040407.0000000000000
-1.050000 25040402.0000000000000
-1.350000 25040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/tzz.xl b/CarpetAttic/Cart3dTest/test/periodic/tzz.xl
index 5e310afe3..0035c4de3 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/tzz.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic/tzz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz x (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 26000505
+0 0 0 0 0 1 5 5 26010505
+0 0 0 0 0 2 5 5 26020505
+0 0 0 0 0 3 5 5 26030505
+0 0 0 0 0 4 5 5 26040505
+0 0 0 0 0 5 5 5 26050505
+0 0 0 0 0 6 5 5 26060505
+0 0 0 0 0 7 5 5 26070505
+0 0 0 0 0 8 5 5 26080505
+0 0 0 0 0 9 5 5 26090505
-"Time = 0.000000
--1.350000 26000404.0000000000000
--1.050000 26010404.0000000000000
--0.750000 26020404.0000000000000
--0.450000 26030404.0000000000000
--0.150000 26040404.0000000000000
-0.150000 26050404.0000000000000
-0.450000 26060404.0000000000000
-0.750000 26070404.0000000000000
-1.050000 26080404.0000000000000
-1.350000 26090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 26000505
+1 0 0 0 0 1 5 5 26010505
+1 0 0 0 0 2 5 5 26020505
+1 0 0 0 0 3 5 5 26030505
+1 0 0 0 0 4 5 5 26040505
+1 0 0 0 0 5 5 5 26050505
+1 0 0 0 0 6 5 5 26060505
+1 0 0 0 0 7 5 5 26070505
+1 0 0 0 0 8 5 5 26080505
+1 0 0 0 0 9 5 5 26090505
+
-"Time = 1.000000
--1.350000 26000404.0000000000000
--1.050000 26010404.0000000000000
--0.750000 26020404.0000000000000
--0.450000 26030404.0000000000000
--0.150000 26040404.0000000000000
-0.150000 26050404.0000000000000
-0.450000 26060404.0000000000000
-0.750000 26070404.0000000000000
-1.050000 26080404.0000000000000
-1.350000 26090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/tzz.yl b/CarpetAttic/Cart3dTest/test/periodic/tzz.yl
index 9ba6730a7..419eacda2 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/tzz.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic/tzz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz y (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 26050005
+0 0 0 0 0 5 1 5 26050105
+0 0 0 0 0 5 2 5 26050205
+0 0 0 0 0 5 3 5 26050305
+0 0 0 0 0 5 4 5 26050405
+0 0 0 0 0 5 5 5 26050505
+0 0 0 0 0 5 6 5 26050605
+0 0 0 0 0 5 7 5 26050705
+0 0 0 0 0 5 8 5 26050805
+0 0 0 0 0 5 9 5 26050905
-"Time = 0.000000
--1.350000 26040004.0000000000000
--1.050000 26040104.0000000000000
--0.750000 26040204.0000000000000
--0.450000 26040304.0000000000000
--0.150000 26040404.0000000000000
-0.150000 26040504.0000000000000
-0.450000 26040604.0000000000000
-0.750000 26040704.0000000000000
-1.050000 26040804.0000000000000
-1.350000 26040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 26050805
+1 0 0 0 0 5 1 5 26050105
+1 0 0 0 0 5 2 5 26050205
+1 0 0 0 0 5 3 5 26050305
+1 0 0 0 0 5 4 5 26050405
+1 0 0 0 0 5 5 5 26050505
+1 0 0 0 0 5 6 5 26050605
+1 0 0 0 0 5 7 5 26050705
+1 0 0 0 0 5 8 5 26050805
+1 0 0 0 0 5 9 5 26050105
+
-"Time = 1.000000
--1.350000 26040804.0000000000000
--1.050000 26040104.0000000000000
--0.750000 26040204.0000000000000
--0.450000 26040304.0000000000000
--0.150000 26040404.0000000000000
-0.150000 26040504.0000000000000
-0.450000 26040604.0000000000000
-0.750000 26040704.0000000000000
-1.050000 26040804.0000000000000
-1.350000 26040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/tzz.zl b/CarpetAttic/Cart3dTest/test/periodic/tzz.zl
index 14a94781a..7687b70da 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/tzz.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic/tzz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz z (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 26050500
+0 0 0 0 0 5 5 1 26050501
+0 0 0 0 0 5 5 2 26050502
+0 0 0 0 0 5 5 3 26050503
+0 0 0 0 0 5 5 4 26050504
+0 0 0 0 0 5 5 5 26050505
+0 0 0 0 0 5 5 6 26050506
+0 0 0 0 0 5 5 7 26050507
+0 0 0 0 0 5 5 8 26050508
+0 0 0 0 0 5 5 9 26050509
-"Time = 0.000000
--1.350000 26040400.0000000000000
--1.050000 26040401.0000000000000
--0.750000 26040402.0000000000000
--0.450000 26040403.0000000000000
--0.150000 26040404.0000000000000
-0.150000 26040405.0000000000000
-0.450000 26040406.0000000000000
-0.750000 26040407.0000000000000
-1.050000 26040408.0000000000000
-1.350000 26040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 26050506
+1 0 0 0 0 5 5 1 26050507
+1 0 0 0 0 5 5 2 26050502
+1 0 0 0 0 5 5 3 26050503
+1 0 0 0 0 5 5 4 26050504
+1 0 0 0 0 5 5 5 26050505
+1 0 0 0 0 5 5 6 26050506
+1 0 0 0 0 5 5 7 26050507
+1 0 0 0 0 5 5 8 26050502
+1 0 0 0 0 5 5 9 26050503
+
-"Time = 1.000000
--1.350000 26040406.0000000000000
--1.050000 26040407.0000000000000
--0.750000 26040402.0000000000000
--0.450000 26040403.0000000000000
--0.150000 26040404.0000000000000
-0.150000 26040405.0000000000000
-0.450000 26040406.0000000000000
-0.750000 26040407.0000000000000
-1.050000 26040402.0000000000000
-1.350000 26040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/vx.xl b/CarpetAttic/Cart3dTest/test/periodic/vx.xl
index 444a4bcde..d4dafe57f 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/vx.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic/vx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx x (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 11000505
+0 0 0 0 0 1 5 5 11010505
+0 0 0 0 0 2 5 5 11020505
+0 0 0 0 0 3 5 5 11030505
+0 0 0 0 0 4 5 5 11040505
+0 0 0 0 0 5 5 5 11050505
+0 0 0 0 0 6 5 5 11060505
+0 0 0 0 0 7 5 5 11070505
+0 0 0 0 0 8 5 5 11080505
+0 0 0 0 0 9 5 5 11090505
-"Time = 0.000000
--1.350000 11000404.0000000000000
--1.050000 11010404.0000000000000
--0.750000 11020404.0000000000000
--0.450000 11030404.0000000000000
--0.150000 11040404.0000000000000
-0.150000 11050404.0000000000000
-0.450000 11060404.0000000000000
-0.750000 11070404.0000000000000
-1.050000 11080404.0000000000000
-1.350000 11090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 11000505
+1 0 0 0 0 1 5 5 11010505
+1 0 0 0 0 2 5 5 11020505
+1 0 0 0 0 3 5 5 11030505
+1 0 0 0 0 4 5 5 11040505
+1 0 0 0 0 5 5 5 11050505
+1 0 0 0 0 6 5 5 11060505
+1 0 0 0 0 7 5 5 11070505
+1 0 0 0 0 8 5 5 11080505
+1 0 0 0 0 9 5 5 11090505
+
-"Time = 1.000000
--1.350000 11000404.0000000000000
--1.050000 11010404.0000000000000
--0.750000 11020404.0000000000000
--0.450000 11030404.0000000000000
--0.150000 11040404.0000000000000
-0.150000 11050404.0000000000000
-0.450000 11060404.0000000000000
-0.750000 11070404.0000000000000
-1.050000 11080404.0000000000000
-1.350000 11090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/vx.yl b/CarpetAttic/Cart3dTest/test/periodic/vx.yl
index 7a824f392..f81df364e 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/vx.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic/vx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx y (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 11050005
+0 0 0 0 0 5 1 5 11050105
+0 0 0 0 0 5 2 5 11050205
+0 0 0 0 0 5 3 5 11050305
+0 0 0 0 0 5 4 5 11050405
+0 0 0 0 0 5 5 5 11050505
+0 0 0 0 0 5 6 5 11050605
+0 0 0 0 0 5 7 5 11050705
+0 0 0 0 0 5 8 5 11050805
+0 0 0 0 0 5 9 5 11050905
-"Time = 0.000000
--1.350000 11040004.0000000000000
--1.050000 11040104.0000000000000
--0.750000 11040204.0000000000000
--0.450000 11040304.0000000000000
--0.150000 11040404.0000000000000
-0.150000 11040504.0000000000000
-0.450000 11040604.0000000000000
-0.750000 11040704.0000000000000
-1.050000 11040804.0000000000000
-1.350000 11040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 11050805
+1 0 0 0 0 5 1 5 11050105
+1 0 0 0 0 5 2 5 11050205
+1 0 0 0 0 5 3 5 11050305
+1 0 0 0 0 5 4 5 11050405
+1 0 0 0 0 5 5 5 11050505
+1 0 0 0 0 5 6 5 11050605
+1 0 0 0 0 5 7 5 11050705
+1 0 0 0 0 5 8 5 11050805
+1 0 0 0 0 5 9 5 11050105
+
-"Time = 1.000000
--1.350000 11040804.0000000000000
--1.050000 11040104.0000000000000
--0.750000 11040204.0000000000000
--0.450000 11040304.0000000000000
--0.150000 11040404.0000000000000
-0.150000 11040504.0000000000000
-0.450000 11040604.0000000000000
-0.750000 11040704.0000000000000
-1.050000 11040804.0000000000000
-1.350000 11040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/vx.zl b/CarpetAttic/Cart3dTest/test/periodic/vx.zl
index aa01c1e8e..233bb7a3d 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/vx.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic/vx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx z (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 11050500
+0 0 0 0 0 5 5 1 11050501
+0 0 0 0 0 5 5 2 11050502
+0 0 0 0 0 5 5 3 11050503
+0 0 0 0 0 5 5 4 11050504
+0 0 0 0 0 5 5 5 11050505
+0 0 0 0 0 5 5 6 11050506
+0 0 0 0 0 5 5 7 11050507
+0 0 0 0 0 5 5 8 11050508
+0 0 0 0 0 5 5 9 11050509
-"Time = 0.000000
--1.350000 11040400.0000000000000
--1.050000 11040401.0000000000000
--0.750000 11040402.0000000000000
--0.450000 11040403.0000000000000
--0.150000 11040404.0000000000000
-0.150000 11040405.0000000000000
-0.450000 11040406.0000000000000
-0.750000 11040407.0000000000000
-1.050000 11040408.0000000000000
-1.350000 11040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 11050506
+1 0 0 0 0 5 5 1 11050507
+1 0 0 0 0 5 5 2 11050502
+1 0 0 0 0 5 5 3 11050503
+1 0 0 0 0 5 5 4 11050504
+1 0 0 0 0 5 5 5 11050505
+1 0 0 0 0 5 5 6 11050506
+1 0 0 0 0 5 5 7 11050507
+1 0 0 0 0 5 5 8 11050502
+1 0 0 0 0 5 5 9 11050503
+
-"Time = 1.000000
--1.350000 11040406.0000000000000
--1.050000 11040407.0000000000000
--0.750000 11040402.0000000000000
--0.450000 11040403.0000000000000
--0.150000 11040404.0000000000000
-0.150000 11040405.0000000000000
-0.450000 11040406.0000000000000
-0.750000 11040407.0000000000000
-1.050000 11040402.0000000000000
-1.350000 11040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/vy.xl b/CarpetAttic/Cart3dTest/test/periodic/vy.xl
index 332f28267..487f382f4 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/vy.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic/vy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy x (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 12000505
+0 0 0 0 0 1 5 5 12010505
+0 0 0 0 0 2 5 5 12020505
+0 0 0 0 0 3 5 5 12030505
+0 0 0 0 0 4 5 5 12040505
+0 0 0 0 0 5 5 5 12050505
+0 0 0 0 0 6 5 5 12060505
+0 0 0 0 0 7 5 5 12070505
+0 0 0 0 0 8 5 5 12080505
+0 0 0 0 0 9 5 5 12090505
-"Time = 0.000000
--1.350000 12000404.0000000000000
--1.050000 12010404.0000000000000
--0.750000 12020404.0000000000000
--0.450000 12030404.0000000000000
--0.150000 12040404.0000000000000
-0.150000 12050404.0000000000000
-0.450000 12060404.0000000000000
-0.750000 12070404.0000000000000
-1.050000 12080404.0000000000000
-1.350000 12090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 12000505
+1 0 0 0 0 1 5 5 12010505
+1 0 0 0 0 2 5 5 12020505
+1 0 0 0 0 3 5 5 12030505
+1 0 0 0 0 4 5 5 12040505
+1 0 0 0 0 5 5 5 12050505
+1 0 0 0 0 6 5 5 12060505
+1 0 0 0 0 7 5 5 12070505
+1 0 0 0 0 8 5 5 12080505
+1 0 0 0 0 9 5 5 12090505
+
-"Time = 1.000000
--1.350000 12000404.0000000000000
--1.050000 12010404.0000000000000
--0.750000 12020404.0000000000000
--0.450000 12030404.0000000000000
--0.150000 12040404.0000000000000
-0.150000 12050404.0000000000000
-0.450000 12060404.0000000000000
-0.750000 12070404.0000000000000
-1.050000 12080404.0000000000000
-1.350000 12090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/vy.yl b/CarpetAttic/Cart3dTest/test/periodic/vy.yl
index 9c876a85b..d8b64e9eb 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/vy.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic/vy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy y (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 12050005
+0 0 0 0 0 5 1 5 12050105
+0 0 0 0 0 5 2 5 12050205
+0 0 0 0 0 5 3 5 12050305
+0 0 0 0 0 5 4 5 12050405
+0 0 0 0 0 5 5 5 12050505
+0 0 0 0 0 5 6 5 12050605
+0 0 0 0 0 5 7 5 12050705
+0 0 0 0 0 5 8 5 12050805
+0 0 0 0 0 5 9 5 12050905
-"Time = 0.000000
--1.350000 12040004.0000000000000
--1.050000 12040104.0000000000000
--0.750000 12040204.0000000000000
--0.450000 12040304.0000000000000
--0.150000 12040404.0000000000000
-0.150000 12040504.0000000000000
-0.450000 12040604.0000000000000
-0.750000 12040704.0000000000000
-1.050000 12040804.0000000000000
-1.350000 12040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 12050805
+1 0 0 0 0 5 1 5 12050105
+1 0 0 0 0 5 2 5 12050205
+1 0 0 0 0 5 3 5 12050305
+1 0 0 0 0 5 4 5 12050405
+1 0 0 0 0 5 5 5 12050505
+1 0 0 0 0 5 6 5 12050605
+1 0 0 0 0 5 7 5 12050705
+1 0 0 0 0 5 8 5 12050805
+1 0 0 0 0 5 9 5 12050105
+
-"Time = 1.000000
--1.350000 12040804.0000000000000
--1.050000 12040104.0000000000000
--0.750000 12040204.0000000000000
--0.450000 12040304.0000000000000
--0.150000 12040404.0000000000000
-0.150000 12040504.0000000000000
-0.450000 12040604.0000000000000
-0.750000 12040704.0000000000000
-1.050000 12040804.0000000000000
-1.350000 12040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/vy.zl b/CarpetAttic/Cart3dTest/test/periodic/vy.zl
index 2b45a5477..9f158aa08 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/vy.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic/vy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy z (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 12050500
+0 0 0 0 0 5 5 1 12050501
+0 0 0 0 0 5 5 2 12050502
+0 0 0 0 0 5 5 3 12050503
+0 0 0 0 0 5 5 4 12050504
+0 0 0 0 0 5 5 5 12050505
+0 0 0 0 0 5 5 6 12050506
+0 0 0 0 0 5 5 7 12050507
+0 0 0 0 0 5 5 8 12050508
+0 0 0 0 0 5 5 9 12050509
-"Time = 0.000000
--1.350000 12040400.0000000000000
--1.050000 12040401.0000000000000
--0.750000 12040402.0000000000000
--0.450000 12040403.0000000000000
--0.150000 12040404.0000000000000
-0.150000 12040405.0000000000000
-0.450000 12040406.0000000000000
-0.750000 12040407.0000000000000
-1.050000 12040408.0000000000000
-1.350000 12040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 12050506
+1 0 0 0 0 5 5 1 12050507
+1 0 0 0 0 5 5 2 12050502
+1 0 0 0 0 5 5 3 12050503
+1 0 0 0 0 5 5 4 12050504
+1 0 0 0 0 5 5 5 12050505
+1 0 0 0 0 5 5 6 12050506
+1 0 0 0 0 5 5 7 12050507
+1 0 0 0 0 5 5 8 12050502
+1 0 0 0 0 5 5 9 12050503
+
-"Time = 1.000000
--1.350000 12040406.0000000000000
--1.050000 12040407.0000000000000
--0.750000 12040402.0000000000000
--0.450000 12040403.0000000000000
--0.150000 12040404.0000000000000
-0.150000 12040405.0000000000000
-0.450000 12040406.0000000000000
-0.750000 12040407.0000000000000
-1.050000 12040402.0000000000000
-1.350000 12040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/vz.xl b/CarpetAttic/Cart3dTest/test/periodic/vz.xl
index 8ab106eea..7385d5001 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/vz.xl
+++ b/CarpetAttic/Cart3dTest/test/periodic/vz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz x (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 13000505
+0 0 0 0 0 1 5 5 13010505
+0 0 0 0 0 2 5 5 13020505
+0 0 0 0 0 3 5 5 13030505
+0 0 0 0 0 4 5 5 13040505
+0 0 0 0 0 5 5 5 13050505
+0 0 0 0 0 6 5 5 13060505
+0 0 0 0 0 7 5 5 13070505
+0 0 0 0 0 8 5 5 13080505
+0 0 0 0 0 9 5 5 13090505
-"Time = 0.000000
--1.350000 13000404.0000000000000
--1.050000 13010404.0000000000000
--0.750000 13020404.0000000000000
--0.450000 13030404.0000000000000
--0.150000 13040404.0000000000000
-0.150000 13050404.0000000000000
-0.450000 13060404.0000000000000
-0.750000 13070404.0000000000000
-1.050000 13080404.0000000000000
-1.350000 13090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 13000505
+1 0 0 0 0 1 5 5 13010505
+1 0 0 0 0 2 5 5 13020505
+1 0 0 0 0 3 5 5 13030505
+1 0 0 0 0 4 5 5 13040505
+1 0 0 0 0 5 5 5 13050505
+1 0 0 0 0 6 5 5 13060505
+1 0 0 0 0 7 5 5 13070505
+1 0 0 0 0 8 5 5 13080505
+1 0 0 0 0 9 5 5 13090505
+
-"Time = 1.000000
--1.350000 13000404.0000000000000
--1.050000 13010404.0000000000000
--0.750000 13020404.0000000000000
--0.450000 13030404.0000000000000
--0.150000 13040404.0000000000000
-0.150000 13050404.0000000000000
-0.450000 13060404.0000000000000
-0.750000 13070404.0000000000000
-1.050000 13080404.0000000000000
-1.350000 13090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/vz.yl b/CarpetAttic/Cart3dTest/test/periodic/vz.yl
index 02c4d1a03..dc3f4f135 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/vz.yl
+++ b/CarpetAttic/Cart3dTest/test/periodic/vz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz y (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 13050005
+0 0 0 0 0 5 1 5 13050105
+0 0 0 0 0 5 2 5 13050205
+0 0 0 0 0 5 3 5 13050305
+0 0 0 0 0 5 4 5 13050405
+0 0 0 0 0 5 5 5 13050505
+0 0 0 0 0 5 6 5 13050605
+0 0 0 0 0 5 7 5 13050705
+0 0 0 0 0 5 8 5 13050805
+0 0 0 0 0 5 9 5 13050905
-"Time = 0.000000
--1.350000 13040004.0000000000000
--1.050000 13040104.0000000000000
--0.750000 13040204.0000000000000
--0.450000 13040304.0000000000000
--0.150000 13040404.0000000000000
-0.150000 13040504.0000000000000
-0.450000 13040604.0000000000000
-0.750000 13040704.0000000000000
-1.050000 13040804.0000000000000
-1.350000 13040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 13050805
+1 0 0 0 0 5 1 5 13050105
+1 0 0 0 0 5 2 5 13050205
+1 0 0 0 0 5 3 5 13050305
+1 0 0 0 0 5 4 5 13050405
+1 0 0 0 0 5 5 5 13050505
+1 0 0 0 0 5 6 5 13050605
+1 0 0 0 0 5 7 5 13050705
+1 0 0 0 0 5 8 5 13050805
+1 0 0 0 0 5 9 5 13050105
+
-"Time = 1.000000
--1.350000 13040804.0000000000000
--1.050000 13040104.0000000000000
--0.750000 13040204.0000000000000
--0.450000 13040304.0000000000000
--0.150000 13040404.0000000000000
-0.150000 13040504.0000000000000
-0.450000 13040604.0000000000000
-0.750000 13040704.0000000000000
-1.050000 13040804.0000000000000
-1.350000 13040104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/periodic/vz.zl b/CarpetAttic/Cart3dTest/test/periodic/vz.zl
index 08d43eff2..34c262e57 100644
--- a/CarpetAttic/Cart3dTest/test/periodic/vz.zl
+++ b/CarpetAttic/Cart3dTest/test/periodic/vz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz z (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 13050500
+0 0 0 0 0 5 5 1 13050501
+0 0 0 0 0 5 5 2 13050502
+0 0 0 0 0 5 5 3 13050503
+0 0 0 0 0 5 5 4 13050504
+0 0 0 0 0 5 5 5 13050505
+0 0 0 0 0 5 5 6 13050506
+0 0 0 0 0 5 5 7 13050507
+0 0 0 0 0 5 5 8 13050508
+0 0 0 0 0 5 5 9 13050509
-"Time = 0.000000
--1.350000 13040400.0000000000000
--1.050000 13040401.0000000000000
--0.750000 13040402.0000000000000
--0.450000 13040403.0000000000000
--0.150000 13040404.0000000000000
-0.150000 13040405.0000000000000
-0.450000 13040406.0000000000000
-0.750000 13040407.0000000000000
-1.050000 13040408.0000000000000
-1.350000 13040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 13050506
+1 0 0 0 0 5 5 1 13050507
+1 0 0 0 0 5 5 2 13050502
+1 0 0 0 0 5 5 3 13050503
+1 0 0 0 0 5 5 4 13050504
+1 0 0 0 0 5 5 5 13050505
+1 0 0 0 0 5 5 6 13050506
+1 0 0 0 0 5 5 7 13050507
+1 0 0 0 0 5 5 8 13050502
+1 0 0 0 0 5 5 9 13050503
+
-"Time = 1.000000
--1.350000 13040406.0000000000000
--1.050000 13040407.0000000000000
--0.750000 13040402.0000000000000
--0.450000 13040403.0000000000000
--0.150000 13040404.0000000000000
-0.150000 13040405.0000000000000
-0.450000 13040406.0000000000000
-0.750000 13040407.0000000000000
-1.050000 13040402.0000000000000
-1.350000 13040403.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/ax.xl b/CarpetAttic/Cart3dTest/test/quadrant/ax.xl
index 11b202b47..397050783 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/ax.xl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/ax.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax x (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 31000105
+0 0 0 0 0 1 1 5 31010105
+0 0 0 0 0 2 1 5 31020105
+0 0 0 0 0 3 1 5 31030105
+0 0 0 0 0 4 1 5 31040105
+0 0 0 0 0 5 1 5 31050105
+0 0 0 0 0 6 1 5 31060105
+0 0 0 0 0 7 1 5 31070105
+0 0 0 0 0 8 1 5 31080105
+0 0 0 0 0 9 1 5 31090105
-"Time = 0.000000
-0.150000 31000104.0000000000000
-0.450000 31010104.0000000000000
-0.750000 31020104.0000000000000
-1.050000 31030104.0000000000000
-1.350000 31040104.0000000000000
-1.650000 31050104.0000000000000
-1.950000 31060104.0000000000000
-2.250000 31070104.0000000000000
-2.550000 31080104.0000000000000
-2.850000 31090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 31000105
+1 0 0 0 0 1 1 5 31010105
+1 0 0 0 0 2 1 5 31020105
+1 0 0 0 0 3 1 5 31030105
+1 0 0 0 0 4 1 5 31040105
+1 0 0 0 0 5 1 5 31050105
+1 0 0 0 0 6 1 5 31060105
+1 0 0 0 0 7 1 5 31070105
+1 0 0 0 0 8 1 5 31080105
+1 0 0 0 0 9 1 5 31090105
+
-"Time = 1.000000
-0.150000 31000104.0000000000000
-0.450000 31010104.0000000000000
-0.750000 31020104.0000000000000
-1.050000 31030104.0000000000000
-1.350000 31040104.0000000000000
-1.650000 31050104.0000000000000
-1.950000 31060104.0000000000000
-2.250000 31070104.0000000000000
-2.550000 31080104.0000000000000
-2.850000 31090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/ax.yl b/CarpetAttic/Cart3dTest/test/quadrant/ax.yl
index a3a1dd95a..eaef02f5c 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/ax.yl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/ax.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax y (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 31000005
+0 0 0 0 0 0 1 5 31000105
+0 0 0 0 0 0 2 5 31000205
+0 0 0 0 0 0 3 5 31000305
+0 0 0 0 0 0 4 5 31000405
+0 0 0 0 0 0 5 5 31000505
+0 0 0 0 0 0 6 5 31000605
+0 0 0 0 0 0 7 5 31000705
+0 0 0 0 0 0 8 5 31000805
+0 0 0 0 0 0 9 5 31000905
-"Time = 0.000000
--0.150000 31000004.0000000000000
-0.150000 31000104.0000000000000
-0.450000 31000204.0000000000000
-0.750000 31000304.0000000000000
-1.050000 31000404.0000000000000
-1.350000 31000504.0000000000000
-1.650000 31000604.0000000000000
-1.950000 31000704.0000000000000
-2.250000 31000804.0000000000000
-2.550000 31000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 -31000105
+1 0 0 0 0 0 1 5 31000105
+1 0 0 0 0 0 2 5 31000205
+1 0 0 0 0 0 3 5 31000305
+1 0 0 0 0 0 4 5 31000405
+1 0 0 0 0 0 5 5 31000505
+1 0 0 0 0 0 6 5 31000605
+1 0 0 0 0 0 7 5 31000705
+1 0 0 0 0 0 8 5 31000805
+1 0 0 0 0 0 9 5 31000905
+
-"Time = 1.000000
--0.150000 -31000104.0000000000000
-0.150000 31000104.0000000000000
-0.450000 31000204.0000000000000
-0.750000 31000304.0000000000000
-1.050000 31000404.0000000000000
-1.350000 31000504.0000000000000
-1.650000 31000604.0000000000000
-1.950000 31000704.0000000000000
-2.250000 31000804.0000000000000
-2.550000 31000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/ax.zl b/CarpetAttic/Cart3dTest/test/quadrant/ax.zl
index de951ec21..95884a539 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/ax.zl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/ax.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax z (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 31000100
+0 0 0 0 0 0 1 1 31000101
+0 0 0 0 0 0 1 2 31000102
+0 0 0 0 0 0 1 3 31000103
+0 0 0 0 0 0 1 4 31000104
+0 0 0 0 0 0 1 5 31000105
+0 0 0 0 0 0 1 6 31000106
+0 0 0 0 0 0 1 7 31000107
+0 0 0 0 0 0 1 8 31000108
+0 0 0 0 0 0 1 9 31000109
-"Time = 0.000000
--1.350000 31000100.0000000000000
--1.050000 31000101.0000000000000
--0.750000 31000102.0000000000000
--0.450000 31000103.0000000000000
--0.150000 31000104.0000000000000
-0.150000 31000105.0000000000000
-0.450000 31000106.0000000000000
-0.750000 31000107.0000000000000
-1.050000 31000108.0000000000000
-1.350000 31000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 31000100
+1 0 0 0 0 0 1 1 31000101
+1 0 0 0 0 0 1 2 31000102
+1 0 0 0 0 0 1 3 31000103
+1 0 0 0 0 0 1 4 31000104
+1 0 0 0 0 0 1 5 31000105
+1 0 0 0 0 0 1 6 31000106
+1 0 0 0 0 0 1 7 31000107
+1 0 0 0 0 0 1 8 31000108
+1 0 0 0 0 0 1 9 31000109
+
-"Time = 1.000000
--1.350000 31000100.0000000000000
--1.050000 31000101.0000000000000
--0.750000 31000102.0000000000000
--0.450000 31000103.0000000000000
--0.150000 31000104.0000000000000
-0.150000 31000105.0000000000000
-0.450000 31000106.0000000000000
-0.750000 31000107.0000000000000
-1.050000 31000108.0000000000000
-1.350000 31000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/ay.xl b/CarpetAttic/Cart3dTest/test/quadrant/ay.xl
index e15cced9f..99252f51f 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/ay.xl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/ay.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay x (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 32000105
+0 0 0 0 0 1 1 5 32010105
+0 0 0 0 0 2 1 5 32020105
+0 0 0 0 0 3 1 5 32030105
+0 0 0 0 0 4 1 5 32040105
+0 0 0 0 0 5 1 5 32050105
+0 0 0 0 0 6 1 5 32060105
+0 0 0 0 0 7 1 5 32070105
+0 0 0 0 0 8 1 5 32080105
+0 0 0 0 0 9 1 5 32090105
-"Time = 0.000000
-0.150000 32000104.0000000000000
-0.450000 32010104.0000000000000
-0.750000 32020104.0000000000000
-1.050000 32030104.0000000000000
-1.350000 32040104.0000000000000
-1.650000 32050104.0000000000000
-1.950000 32060104.0000000000000
-2.250000 32070104.0000000000000
-2.550000 32080104.0000000000000
-2.850000 32090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 32000105
+1 0 0 0 0 1 1 5 32010105
+1 0 0 0 0 2 1 5 32020105
+1 0 0 0 0 3 1 5 32030105
+1 0 0 0 0 4 1 5 32040105
+1 0 0 0 0 5 1 5 32050105
+1 0 0 0 0 6 1 5 32060105
+1 0 0 0 0 7 1 5 32070105
+1 0 0 0 0 8 1 5 32080105
+1 0 0 0 0 9 1 5 32090105
+
-"Time = 1.000000
-0.150000 32000104.0000000000000
-0.450000 32010104.0000000000000
-0.750000 32020104.0000000000000
-1.050000 32030104.0000000000000
-1.350000 32040104.0000000000000
-1.650000 32050104.0000000000000
-1.950000 32060104.0000000000000
-2.250000 32070104.0000000000000
-2.550000 32080104.0000000000000
-2.850000 32090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/ay.yl b/CarpetAttic/Cart3dTest/test/quadrant/ay.yl
index 29b7437cf..449cdceaa 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/ay.yl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/ay.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay y (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 32000005
+0 0 0 0 0 0 1 5 32000105
+0 0 0 0 0 0 2 5 32000205
+0 0 0 0 0 0 3 5 32000305
+0 0 0 0 0 0 4 5 32000405
+0 0 0 0 0 0 5 5 32000505
+0 0 0 0 0 0 6 5 32000605
+0 0 0 0 0 0 7 5 32000705
+0 0 0 0 0 0 8 5 32000805
+0 0 0 0 0 0 9 5 32000905
-"Time = 0.000000
--0.150000 32000004.0000000000000
-0.150000 32000104.0000000000000
-0.450000 32000204.0000000000000
-0.750000 32000304.0000000000000
-1.050000 32000404.0000000000000
-1.350000 32000504.0000000000000
-1.650000 32000604.0000000000000
-1.950000 32000704.0000000000000
-2.250000 32000804.0000000000000
-2.550000 32000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 32000105
+1 0 0 0 0 0 1 5 32000105
+1 0 0 0 0 0 2 5 32000205
+1 0 0 0 0 0 3 5 32000305
+1 0 0 0 0 0 4 5 32000405
+1 0 0 0 0 0 5 5 32000505
+1 0 0 0 0 0 6 5 32000605
+1 0 0 0 0 0 7 5 32000705
+1 0 0 0 0 0 8 5 32000805
+1 0 0 0 0 0 9 5 32000905
+
-"Time = 1.000000
--0.150000 32000104.0000000000000
-0.150000 32000104.0000000000000
-0.450000 32000204.0000000000000
-0.750000 32000304.0000000000000
-1.050000 32000404.0000000000000
-1.350000 32000504.0000000000000
-1.650000 32000604.0000000000000
-1.950000 32000704.0000000000000
-2.250000 32000804.0000000000000
-2.550000 32000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/ay.zl b/CarpetAttic/Cart3dTest/test/quadrant/ay.zl
index dd7c583e4..2b972174c 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/ay.zl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/ay.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay z (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 32000100
+0 0 0 0 0 0 1 1 32000101
+0 0 0 0 0 0 1 2 32000102
+0 0 0 0 0 0 1 3 32000103
+0 0 0 0 0 0 1 4 32000104
+0 0 0 0 0 0 1 5 32000105
+0 0 0 0 0 0 1 6 32000106
+0 0 0 0 0 0 1 7 32000107
+0 0 0 0 0 0 1 8 32000108
+0 0 0 0 0 0 1 9 32000109
-"Time = 0.000000
--1.350000 32000100.0000000000000
--1.050000 32000101.0000000000000
--0.750000 32000102.0000000000000
--0.450000 32000103.0000000000000
--0.150000 32000104.0000000000000
-0.150000 32000105.0000000000000
-0.450000 32000106.0000000000000
-0.750000 32000107.0000000000000
-1.050000 32000108.0000000000000
-1.350000 32000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 32000100
+1 0 0 0 0 0 1 1 32000101
+1 0 0 0 0 0 1 2 32000102
+1 0 0 0 0 0 1 3 32000103
+1 0 0 0 0 0 1 4 32000104
+1 0 0 0 0 0 1 5 32000105
+1 0 0 0 0 0 1 6 32000106
+1 0 0 0 0 0 1 7 32000107
+1 0 0 0 0 0 1 8 32000108
+1 0 0 0 0 0 1 9 32000109
+
-"Time = 1.000000
--1.350000 32000100.0000000000000
--1.050000 32000101.0000000000000
--0.750000 32000102.0000000000000
--0.450000 32000103.0000000000000
--0.150000 32000104.0000000000000
-0.150000 32000105.0000000000000
-0.450000 32000106.0000000000000
-0.750000 32000107.0000000000000
-1.050000 32000108.0000000000000
-1.350000 32000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/az.xl b/CarpetAttic/Cart3dTest/test/quadrant/az.xl
index d61a9a60a..739247d1f 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/az.xl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/az.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::az x (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 33000105
+0 0 0 0 0 1 1 5 33010105
+0 0 0 0 0 2 1 5 33020105
+0 0 0 0 0 3 1 5 33030105
+0 0 0 0 0 4 1 5 33040105
+0 0 0 0 0 5 1 5 33050105
+0 0 0 0 0 6 1 5 33060105
+0 0 0 0 0 7 1 5 33070105
+0 0 0 0 0 8 1 5 33080105
+0 0 0 0 0 9 1 5 33090105
-"Time = 0.000000
-0.150000 33000104.0000000000000
-0.450000 33010104.0000000000000
-0.750000 33020104.0000000000000
-1.050000 33030104.0000000000000
-1.350000 33040104.0000000000000
-1.650000 33050104.0000000000000
-1.950000 33060104.0000000000000
-2.250000 33070104.0000000000000
-2.550000 33080104.0000000000000
-2.850000 33090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 33000105
+1 0 0 0 0 1 1 5 33010105
+1 0 0 0 0 2 1 5 33020105
+1 0 0 0 0 3 1 5 33030105
+1 0 0 0 0 4 1 5 33040105
+1 0 0 0 0 5 1 5 33050105
+1 0 0 0 0 6 1 5 33060105
+1 0 0 0 0 7 1 5 33070105
+1 0 0 0 0 8 1 5 33080105
+1 0 0 0 0 9 1 5 33090105
+
-"Time = 1.000000
-0.150000 33000104.0000000000000
-0.450000 33010104.0000000000000
-0.750000 33020104.0000000000000
-1.050000 33030104.0000000000000
-1.350000 33040104.0000000000000
-1.650000 33050104.0000000000000
-1.950000 33060104.0000000000000
-2.250000 33070104.0000000000000
-2.550000 33080104.0000000000000
-2.850000 33090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/az.yl b/CarpetAttic/Cart3dTest/test/quadrant/az.yl
index f33afb200..9b54f28d1 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/az.yl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/az.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::az y (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 33000005
+0 0 0 0 0 0 1 5 33000105
+0 0 0 0 0 0 2 5 33000205
+0 0 0 0 0 0 3 5 33000305
+0 0 0 0 0 0 4 5 33000405
+0 0 0 0 0 0 5 5 33000505
+0 0 0 0 0 0 6 5 33000605
+0 0 0 0 0 0 7 5 33000705
+0 0 0 0 0 0 8 5 33000805
+0 0 0 0 0 0 9 5 33000905
-"Time = 0.000000
--0.150000 33000004.0000000000000
-0.150000 33000104.0000000000000
-0.450000 33000204.0000000000000
-0.750000 33000304.0000000000000
-1.050000 33000404.0000000000000
-1.350000 33000504.0000000000000
-1.650000 33000604.0000000000000
-1.950000 33000704.0000000000000
-2.250000 33000804.0000000000000
-2.550000 33000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 -33000105
+1 0 0 0 0 0 1 5 33000105
+1 0 0 0 0 0 2 5 33000205
+1 0 0 0 0 0 3 5 33000305
+1 0 0 0 0 0 4 5 33000405
+1 0 0 0 0 0 5 5 33000505
+1 0 0 0 0 0 6 5 33000605
+1 0 0 0 0 0 7 5 33000705
+1 0 0 0 0 0 8 5 33000805
+1 0 0 0 0 0 9 5 33000905
+
-"Time = 1.000000
--0.150000 -33000104.0000000000000
-0.150000 33000104.0000000000000
-0.450000 33000204.0000000000000
-0.750000 33000304.0000000000000
-1.050000 33000404.0000000000000
-1.350000 33000504.0000000000000
-1.650000 33000604.0000000000000
-1.950000 33000704.0000000000000
-2.250000 33000804.0000000000000
-2.550000 33000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/az.zl b/CarpetAttic/Cart3dTest/test/quadrant/az.zl
index 4b602f15d..f6e71f0f1 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/az.zl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/az.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::az z (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 33000100
+0 0 0 0 0 0 1 1 33000101
+0 0 0 0 0 0 1 2 33000102
+0 0 0 0 0 0 1 3 33000103
+0 0 0 0 0 0 1 4 33000104
+0 0 0 0 0 0 1 5 33000105
+0 0 0 0 0 0 1 6 33000106
+0 0 0 0 0 0 1 7 33000107
+0 0 0 0 0 0 1 8 33000108
+0 0 0 0 0 0 1 9 33000109
-"Time = 0.000000
--1.350000 33000100.0000000000000
--1.050000 33000101.0000000000000
--0.750000 33000102.0000000000000
--0.450000 33000103.0000000000000
--0.150000 33000104.0000000000000
-0.150000 33000105.0000000000000
-0.450000 33000106.0000000000000
-0.750000 33000107.0000000000000
-1.050000 33000108.0000000000000
-1.350000 33000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 33000100
+1 0 0 0 0 0 1 1 33000101
+1 0 0 0 0 0 1 2 33000102
+1 0 0 0 0 0 1 3 33000103
+1 0 0 0 0 0 1 4 33000104
+1 0 0 0 0 0 1 5 33000105
+1 0 0 0 0 0 1 6 33000106
+1 0 0 0 0 0 1 7 33000107
+1 0 0 0 0 0 1 8 33000108
+1 0 0 0 0 0 1 9 33000109
+
-"Time = 1.000000
--1.350000 33000100.0000000000000
--1.050000 33000101.0000000000000
--0.750000 33000102.0000000000000
--0.450000 33000103.0000000000000
--0.150000 33000104.0000000000000
-0.150000 33000105.0000000000000
-0.450000 33000106.0000000000000
-0.750000 33000107.0000000000000
-1.050000 33000108.0000000000000
-1.350000 33000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/cart3d_x.xl b/CarpetAttic/Cart3dTest/test/quadrant/cart3d_x.xl
index 50fd6a322..2fabec940 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/cart3d_x.xl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/cart3d_x.xl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x x (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 0.15
+0 0 0 0 0 1 1 5 0.45
+0 0 0 0 0 2 1 5 0.75
+0 0 0 0 0 3 1 5 1.05
+0 0 0 0 0 4 1 5 1.35
+0 0 0 0 0 5 1 5 1.65
+0 0 0 0 0 6 1 5 1.95
+0 0 0 0 0 7 1 5 2.25
+0 0 0 0 0 8 1 5 2.55
+0 0 0 0 0 9 1 5 2.85
-"Time = 0.000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
-2.550000 2.5500000000000
-2.850000 2.8500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 0.15
+1 0 0 0 0 1 1 5 0.45
+1 0 0 0 0 2 1 5 0.75
+1 0 0 0 0 3 1 5 1.05
+1 0 0 0 0 4 1 5 1.35
+1 0 0 0 0 5 1 5 1.65
+1 0 0 0 0 6 1 5 1.95
+1 0 0 0 0 7 1 5 2.25
+1 0 0 0 0 8 1 5 2.55
+1 0 0 0 0 9 1 5 2.85
+
-"Time = 1.000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
-2.550000 2.5500000000000
-2.850000 2.8500000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/cart3d_x.yl b/CarpetAttic/Cart3dTest/test/quadrant/cart3d_x.yl
index 042fd8cff..7a88526ed 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/cart3d_x.yl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/cart3d_x.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x y (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 0.15
+0 0 0 0 0 0 1 5 0.15
+0 0 0 0 0 0 2 5 0.15
+0 0 0 0 0 0 3 5 0.15
+0 0 0 0 0 0 4 5 0.15
+0 0 0 0 0 0 5 5 0.15
+0 0 0 0 0 0 6 5 0.15
+0 0 0 0 0 0 7 5 0.15
+0 0 0 0 0 0 8 5 0.15
+0 0 0 0 0 0 9 5 0.15
-"Time = 0.000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
-1.950000 0.1500000000000
-2.250000 0.1500000000000
-2.550000 0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 0.15
+1 0 0 0 0 0 1 5 0.15
+1 0 0 0 0 0 2 5 0.15
+1 0 0 0 0 0 3 5 0.15
+1 0 0 0 0 0 4 5 0.15
+1 0 0 0 0 0 5 5 0.15
+1 0 0 0 0 0 6 5 0.15
+1 0 0 0 0 0 7 5 0.15
+1 0 0 0 0 0 8 5 0.15
+1 0 0 0 0 0 9 5 0.15
+
-"Time = 1.000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
-1.950000 0.1500000000000
-2.250000 0.1500000000000
-2.550000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/cart3d_x.zl b/CarpetAttic/Cart3dTest/test/quadrant/cart3d_x.zl
index 9ec3cd5db..3920c211d 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/cart3d_x.zl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/cart3d_x.zl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x z (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 0.15
+0 0 0 0 0 0 1 1 0.15
+0 0 0 0 0 0 1 2 0.15
+0 0 0 0 0 0 1 3 0.15
+0 0 0 0 0 0 1 4 0.15
+0 0 0 0 0 0 1 5 0.15
+0 0 0 0 0 0 1 6 0.15
+0 0 0 0 0 0 1 7 0.15
+0 0 0 0 0 0 1 8 0.15
+0 0 0 0 0 0 1 9 0.15
-"Time = 0.000000
--1.350000 0.1500000000000
--1.050000 0.1500000000000
--0.750000 0.1500000000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 0.15
+1 0 0 0 0 0 1 1 0.15
+1 0 0 0 0 0 1 2 0.15
+1 0 0 0 0 0 1 3 0.15
+1 0 0 0 0 0 1 4 0.15
+1 0 0 0 0 0 1 5 0.15
+1 0 0 0 0 0 1 6 0.15
+1 0 0 0 0 0 1 7 0.15
+1 0 0 0 0 0 1 8 0.15
+1 0 0 0 0 0 1 9 0.15
+
-"Time = 1.000000
--1.350000 0.1500000000000
--1.050000 0.1500000000000
--0.750000 0.1500000000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/cart3d_y.xl b/CarpetAttic/Cart3dTest/test/quadrant/cart3d_y.xl
index 2dcde029c..e07fa99ab 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/cart3d_y.xl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/cart3d_y.xl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y x (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 0.15
+0 0 0 0 0 1 1 5 0.15
+0 0 0 0 0 2 1 5 0.15
+0 0 0 0 0 3 1 5 0.15
+0 0 0 0 0 4 1 5 0.15
+0 0 0 0 0 5 1 5 0.15
+0 0 0 0 0 6 1 5 0.15
+0 0 0 0 0 7 1 5 0.15
+0 0 0 0 0 8 1 5 0.15
+0 0 0 0 0 9 1 5 0.15
-"Time = 0.000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
-1.950000 0.1500000000000
-2.250000 0.1500000000000
-2.550000 0.1500000000000
-2.850000 0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 0.15
+1 0 0 0 0 1 1 5 0.15
+1 0 0 0 0 2 1 5 0.15
+1 0 0 0 0 3 1 5 0.15
+1 0 0 0 0 4 1 5 0.15
+1 0 0 0 0 5 1 5 0.15
+1 0 0 0 0 6 1 5 0.15
+1 0 0 0 0 7 1 5 0.15
+1 0 0 0 0 8 1 5 0.15
+1 0 0 0 0 9 1 5 0.15
+
-"Time = 1.000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
-1.650000 0.1500000000000
-1.950000 0.1500000000000
-2.250000 0.1500000000000
-2.550000 0.1500000000000
-2.850000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/cart3d_y.yl b/CarpetAttic/Cart3dTest/test/quadrant/cart3d_y.yl
index b2abd0b7f..fef33815d 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/cart3d_y.yl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/cart3d_y.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y y (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 -0.15
+0 0 0 0 0 0 1 5 0.15
+0 0 0 0 0 0 2 5 0.45
+0 0 0 0 0 0 3 5 0.75
+0 0 0 0 0 0 4 5 1.05
+0 0 0 0 0 0 5 5 1.35
+0 0 0 0 0 0 6 5 1.65
+0 0 0 0 0 0 7 5 1.95
+0 0 0 0 0 0 8 5 2.25
+0 0 0 0 0 0 9 5 2.55
-"Time = 0.000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
-2.550000 2.5500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 -0.15
+1 0 0 0 0 0 1 5 0.15
+1 0 0 0 0 0 2 5 0.45
+1 0 0 0 0 0 3 5 0.75
+1 0 0 0 0 0 4 5 1.05
+1 0 0 0 0 0 5 5 1.35
+1 0 0 0 0 0 6 5 1.65
+1 0 0 0 0 0 7 5 1.95
+1 0 0 0 0 0 8 5 2.25
+1 0 0 0 0 0 9 5 2.55
+
-"Time = 1.000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
-2.550000 2.5500000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/cart3d_y.zl b/CarpetAttic/Cart3dTest/test/quadrant/cart3d_y.zl
index 9ec3cd5db..1325581cd 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/cart3d_y.zl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/cart3d_y.zl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y z (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 0.15
+0 0 0 0 0 0 1 1 0.15
+0 0 0 0 0 0 1 2 0.15
+0 0 0 0 0 0 1 3 0.15
+0 0 0 0 0 0 1 4 0.15
+0 0 0 0 0 0 1 5 0.15
+0 0 0 0 0 0 1 6 0.15
+0 0 0 0 0 0 1 7 0.15
+0 0 0 0 0 0 1 8 0.15
+0 0 0 0 0 0 1 9 0.15
-"Time = 0.000000
--1.350000 0.1500000000000
--1.050000 0.1500000000000
--0.750000 0.1500000000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 0.15
+1 0 0 0 0 0 1 1 0.15
+1 0 0 0 0 0 1 2 0.15
+1 0 0 0 0 0 1 3 0.15
+1 0 0 0 0 0 1 4 0.15
+1 0 0 0 0 0 1 5 0.15
+1 0 0 0 0 0 1 6 0.15
+1 0 0 0 0 0 1 7 0.15
+1 0 0 0 0 0 1 8 0.15
+1 0 0 0 0 0 1 9 0.15
+
-"Time = 1.000000
--1.350000 0.1500000000000
--1.050000 0.1500000000000
--0.750000 0.1500000000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/cart3d_z.xl b/CarpetAttic/Cart3dTest/test/quadrant/cart3d_z.xl
index f1d268a16..9718c560e 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/cart3d_z.xl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/cart3d_z.xl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z x (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 0.15
+0 0 0 0 0 1 1 5 0.15
+0 0 0 0 0 2 1 5 0.15
+0 0 0 0 0 3 1 5 0.15
+0 0 0 0 0 4 1 5 0.15
+0 0 0 0 0 5 1 5 0.15
+0 0 0 0 0 6 1 5 0.15
+0 0 0 0 0 7 1 5 0.15
+0 0 0 0 0 8 1 5 0.15
+0 0 0 0 0 9 1 5 0.15
-"Time = 0.000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
-2.850000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 0.15
+1 0 0 0 0 1 1 5 0.15
+1 0 0 0 0 2 1 5 0.15
+1 0 0 0 0 3 1 5 0.15
+1 0 0 0 0 4 1 5 0.15
+1 0 0 0 0 5 1 5 0.15
+1 0 0 0 0 6 1 5 0.15
+1 0 0 0 0 7 1 5 0.15
+1 0 0 0 0 8 1 5 0.15
+1 0 0 0 0 9 1 5 0.15
+
-"Time = 1.000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
-2.850000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/cart3d_z.yl b/CarpetAttic/Cart3dTest/test/quadrant/cart3d_z.yl
index 46363bcfd..48fe0f0c9 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/cart3d_z.yl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/cart3d_z.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z y (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 0.15
+0 0 0 0 0 0 1 5 0.15
+0 0 0 0 0 0 2 5 0.15
+0 0 0 0 0 0 3 5 0.15
+0 0 0 0 0 0 4 5 0.15
+0 0 0 0 0 0 5 5 0.15
+0 0 0 0 0 0 6 5 0.15
+0 0 0 0 0 0 7 5 0.15
+0 0 0 0 0 0 8 5 0.15
+0 0 0 0 0 0 9 5 0.15
-"Time = 0.000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 0.15
+1 0 0 0 0 0 1 5 0.15
+1 0 0 0 0 0 2 5 0.15
+1 0 0 0 0 0 3 5 0.15
+1 0 0 0 0 0 4 5 0.15
+1 0 0 0 0 0 5 5 0.15
+1 0 0 0 0 0 6 5 0.15
+1 0 0 0 0 0 7 5 0.15
+1 0 0 0 0 0 8 5 0.15
+1 0 0 0 0 0 9 5 0.15
+
-"Time = 1.000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/cart3d_z.zl b/CarpetAttic/Cart3dTest/test/quadrant/cart3d_z.zl
index 33b36d0af..e7d6808ac 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/cart3d_z.zl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/cart3d_z.zl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z z (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 -1.35
+0 0 0 0 0 0 1 1 -1.05
+0 0 0 0 0 0 1 2 -0.75
+0 0 0 0 0 0 1 3 -0.45
+0 0 0 0 0 0 1 4 -0.15
+0 0 0 0 0 0 1 5 0.15
+0 0 0 0 0 0 1 6 0.45
+0 0 0 0 0 0 1 7 0.75
+0 0 0 0 0 0 1 8 1.05
+0 0 0 0 0 0 1 9 1.35
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 -1.35
+1 0 0 0 0 0 1 1 -1.05
+1 0 0 0 0 0 1 2 -0.75
+1 0 0 0 0 0 1 3 -0.45
+1 0 0 0 0 0 1 4 -0.15
+1 0 0 0 0 0 1 5 0.15
+1 0 0 0 0 0 1 6 0.45
+1 0 0 0 0 0 1 7 0.75
+1 0 0 0 0 0 1 8 1.05
+1 0 0 0 0 0 1 9 1.35
+
-"Time = 1.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/fxx.xl b/CarpetAttic/Cart3dTest/test/quadrant/fxx.xl
index cf7a8400a..b571599e8 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/fxx.xl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/fxx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx x (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 41000105
+0 0 0 0 0 1 1 5 41010105
+0 0 0 0 0 2 1 5 41020105
+0 0 0 0 0 3 1 5 41030105
+0 0 0 0 0 4 1 5 41040105
+0 0 0 0 0 5 1 5 41050105
+0 0 0 0 0 6 1 5 41060105
+0 0 0 0 0 7 1 5 41070105
+0 0 0 0 0 8 1 5 41080105
+0 0 0 0 0 9 1 5 41090105
-"Time = 0.000000
-0.150000 41000104.0000000000000
-0.450000 41010104.0000000000000
-0.750000 41020104.0000000000000
-1.050000 41030104.0000000000000
-1.350000 41040104.0000000000000
-1.650000 41050104.0000000000000
-1.950000 41060104.0000000000000
-2.250000 41070104.0000000000000
-2.550000 41080104.0000000000000
-2.850000 41090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 41000105
+1 0 0 0 0 1 1 5 41010105
+1 0 0 0 0 2 1 5 41020105
+1 0 0 0 0 3 1 5 41030105
+1 0 0 0 0 4 1 5 41040105
+1 0 0 0 0 5 1 5 41050105
+1 0 0 0 0 6 1 5 41060105
+1 0 0 0 0 7 1 5 41070105
+1 0 0 0 0 8 1 5 41080105
+1 0 0 0 0 9 1 5 41090105
+
-"Time = 1.000000
-0.150000 41000104.0000000000000
-0.450000 41010104.0000000000000
-0.750000 41020104.0000000000000
-1.050000 41030104.0000000000000
-1.350000 41040104.0000000000000
-1.650000 41050104.0000000000000
-1.950000 41060104.0000000000000
-2.250000 41070104.0000000000000
-2.550000 41080104.0000000000000
-2.850000 41090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/fxx.yl b/CarpetAttic/Cart3dTest/test/quadrant/fxx.yl
index 896781438..a9d9ee283 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/fxx.yl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/fxx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx y (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 41000005
+0 0 0 0 0 0 1 5 41000105
+0 0 0 0 0 0 2 5 41000205
+0 0 0 0 0 0 3 5 41000305
+0 0 0 0 0 0 4 5 41000405
+0 0 0 0 0 0 5 5 41000505
+0 0 0 0 0 0 6 5 41000605
+0 0 0 0 0 0 7 5 41000705
+0 0 0 0 0 0 8 5 41000805
+0 0 0 0 0 0 9 5 41000905
-"Time = 0.000000
--0.150000 41000004.0000000000000
-0.150000 41000104.0000000000000
-0.450000 41000204.0000000000000
-0.750000 41000304.0000000000000
-1.050000 41000404.0000000000000
-1.350000 41000504.0000000000000
-1.650000 41000604.0000000000000
-1.950000 41000704.0000000000000
-2.250000 41000804.0000000000000
-2.550000 41000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 41000105
+1 0 0 0 0 0 1 5 41000105
+1 0 0 0 0 0 2 5 41000205
+1 0 0 0 0 0 3 5 41000305
+1 0 0 0 0 0 4 5 41000405
+1 0 0 0 0 0 5 5 41000505
+1 0 0 0 0 0 6 5 41000605
+1 0 0 0 0 0 7 5 41000705
+1 0 0 0 0 0 8 5 41000805
+1 0 0 0 0 0 9 5 41000905
+
-"Time = 1.000000
--0.150000 41000104.0000000000000
-0.150000 41000104.0000000000000
-0.450000 41000204.0000000000000
-0.750000 41000304.0000000000000
-1.050000 41000404.0000000000000
-1.350000 41000504.0000000000000
-1.650000 41000604.0000000000000
-1.950000 41000704.0000000000000
-2.250000 41000804.0000000000000
-2.550000 41000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/fxx.zl b/CarpetAttic/Cart3dTest/test/quadrant/fxx.zl
index 159bff286..bff00fd60 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/fxx.zl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/fxx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx z (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 41000100
+0 0 0 0 0 0 1 1 41000101
+0 0 0 0 0 0 1 2 41000102
+0 0 0 0 0 0 1 3 41000103
+0 0 0 0 0 0 1 4 41000104
+0 0 0 0 0 0 1 5 41000105
+0 0 0 0 0 0 1 6 41000106
+0 0 0 0 0 0 1 7 41000107
+0 0 0 0 0 0 1 8 41000108
+0 0 0 0 0 0 1 9 41000109
-"Time = 0.000000
--1.350000 41000100.0000000000000
--1.050000 41000101.0000000000000
--0.750000 41000102.0000000000000
--0.450000 41000103.0000000000000
--0.150000 41000104.0000000000000
-0.150000 41000105.0000000000000
-0.450000 41000106.0000000000000
-0.750000 41000107.0000000000000
-1.050000 41000108.0000000000000
-1.350000 41000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 41000100
+1 0 0 0 0 0 1 1 41000101
+1 0 0 0 0 0 1 2 41000102
+1 0 0 0 0 0 1 3 41000103
+1 0 0 0 0 0 1 4 41000104
+1 0 0 0 0 0 1 5 41000105
+1 0 0 0 0 0 1 6 41000106
+1 0 0 0 0 0 1 7 41000107
+1 0 0 0 0 0 1 8 41000108
+1 0 0 0 0 0 1 9 41000109
+
-"Time = 1.000000
--1.350000 41000100.0000000000000
--1.050000 41000101.0000000000000
--0.750000 41000102.0000000000000
--0.450000 41000103.0000000000000
--0.150000 41000104.0000000000000
-0.150000 41000105.0000000000000
-0.450000 41000106.0000000000000
-0.750000 41000107.0000000000000
-1.050000 41000108.0000000000000
-1.350000 41000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/fxy.xl b/CarpetAttic/Cart3dTest/test/quadrant/fxy.xl
index b657d9cc8..684a57670 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/fxy.xl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/fxy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy x (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 42000105
+0 0 0 0 0 1 1 5 42010105
+0 0 0 0 0 2 1 5 42020105
+0 0 0 0 0 3 1 5 42030105
+0 0 0 0 0 4 1 5 42040105
+0 0 0 0 0 5 1 5 42050105
+0 0 0 0 0 6 1 5 42060105
+0 0 0 0 0 7 1 5 42070105
+0 0 0 0 0 8 1 5 42080105
+0 0 0 0 0 9 1 5 42090105
-"Time = 0.000000
-0.150000 42000104.0000000000000
-0.450000 42010104.0000000000000
-0.750000 42020104.0000000000000
-1.050000 42030104.0000000000000
-1.350000 42040104.0000000000000
-1.650000 42050104.0000000000000
-1.950000 42060104.0000000000000
-2.250000 42070104.0000000000000
-2.550000 42080104.0000000000000
-2.850000 42090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 42000105
+1 0 0 0 0 1 1 5 42010105
+1 0 0 0 0 2 1 5 42020105
+1 0 0 0 0 3 1 5 42030105
+1 0 0 0 0 4 1 5 42040105
+1 0 0 0 0 5 1 5 42050105
+1 0 0 0 0 6 1 5 42060105
+1 0 0 0 0 7 1 5 42070105
+1 0 0 0 0 8 1 5 42080105
+1 0 0 0 0 9 1 5 42090105
+
-"Time = 1.000000
-0.150000 42000104.0000000000000
-0.450000 42010104.0000000000000
-0.750000 42020104.0000000000000
-1.050000 42030104.0000000000000
-1.350000 42040104.0000000000000
-1.650000 42050104.0000000000000
-1.950000 42060104.0000000000000
-2.250000 42070104.0000000000000
-2.550000 42080104.0000000000000
-2.850000 42090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/fxy.yl b/CarpetAttic/Cart3dTest/test/quadrant/fxy.yl
index f56d28ecd..50e0a8609 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/fxy.yl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/fxy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy y (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 42000005
+0 0 0 0 0 0 1 5 42000105
+0 0 0 0 0 0 2 5 42000205
+0 0 0 0 0 0 3 5 42000305
+0 0 0 0 0 0 4 5 42000405
+0 0 0 0 0 0 5 5 42000505
+0 0 0 0 0 0 6 5 42000605
+0 0 0 0 0 0 7 5 42000705
+0 0 0 0 0 0 8 5 42000805
+0 0 0 0 0 0 9 5 42000905
-"Time = 0.000000
--0.150000 42000004.0000000000000
-0.150000 42000104.0000000000000
-0.450000 42000204.0000000000000
-0.750000 42000304.0000000000000
-1.050000 42000404.0000000000000
-1.350000 42000504.0000000000000
-1.650000 42000604.0000000000000
-1.950000 42000704.0000000000000
-2.250000 42000804.0000000000000
-2.550000 42000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 -42000105
+1 0 0 0 0 0 1 5 42000105
+1 0 0 0 0 0 2 5 42000205
+1 0 0 0 0 0 3 5 42000305
+1 0 0 0 0 0 4 5 42000405
+1 0 0 0 0 0 5 5 42000505
+1 0 0 0 0 0 6 5 42000605
+1 0 0 0 0 0 7 5 42000705
+1 0 0 0 0 0 8 5 42000805
+1 0 0 0 0 0 9 5 42000905
+
-"Time = 1.000000
--0.150000 -42000104.0000000000000
-0.150000 42000104.0000000000000
-0.450000 42000204.0000000000000
-0.750000 42000304.0000000000000
-1.050000 42000404.0000000000000
-1.350000 42000504.0000000000000
-1.650000 42000604.0000000000000
-1.950000 42000704.0000000000000
-2.250000 42000804.0000000000000
-2.550000 42000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/fxy.zl b/CarpetAttic/Cart3dTest/test/quadrant/fxy.zl
index 169b3f233..50eef1c0f 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/fxy.zl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/fxy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy z (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 42000100
+0 0 0 0 0 0 1 1 42000101
+0 0 0 0 0 0 1 2 42000102
+0 0 0 0 0 0 1 3 42000103
+0 0 0 0 0 0 1 4 42000104
+0 0 0 0 0 0 1 5 42000105
+0 0 0 0 0 0 1 6 42000106
+0 0 0 0 0 0 1 7 42000107
+0 0 0 0 0 0 1 8 42000108
+0 0 0 0 0 0 1 9 42000109
-"Time = 0.000000
--1.350000 42000100.0000000000000
--1.050000 42000101.0000000000000
--0.750000 42000102.0000000000000
--0.450000 42000103.0000000000000
--0.150000 42000104.0000000000000
-0.150000 42000105.0000000000000
-0.450000 42000106.0000000000000
-0.750000 42000107.0000000000000
-1.050000 42000108.0000000000000
-1.350000 42000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 42000100
+1 0 0 0 0 0 1 1 42000101
+1 0 0 0 0 0 1 2 42000102
+1 0 0 0 0 0 1 3 42000103
+1 0 0 0 0 0 1 4 42000104
+1 0 0 0 0 0 1 5 42000105
+1 0 0 0 0 0 1 6 42000106
+1 0 0 0 0 0 1 7 42000107
+1 0 0 0 0 0 1 8 42000108
+1 0 0 0 0 0 1 9 42000109
+
-"Time = 1.000000
--1.350000 42000100.0000000000000
--1.050000 42000101.0000000000000
--0.750000 42000102.0000000000000
--0.450000 42000103.0000000000000
--0.150000 42000104.0000000000000
-0.150000 42000105.0000000000000
-0.450000 42000106.0000000000000
-0.750000 42000107.0000000000000
-1.050000 42000108.0000000000000
-1.350000 42000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/fxz.xl b/CarpetAttic/Cart3dTest/test/quadrant/fxz.xl
index af4975850..4e6e40ef5 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/fxz.xl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/fxz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz x (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 43000105
+0 0 0 0 0 1 1 5 43010105
+0 0 0 0 0 2 1 5 43020105
+0 0 0 0 0 3 1 5 43030105
+0 0 0 0 0 4 1 5 43040105
+0 0 0 0 0 5 1 5 43050105
+0 0 0 0 0 6 1 5 43060105
+0 0 0 0 0 7 1 5 43070105
+0 0 0 0 0 8 1 5 43080105
+0 0 0 0 0 9 1 5 43090105
-"Time = 0.000000
-0.150000 43000104.0000000000000
-0.450000 43010104.0000000000000
-0.750000 43020104.0000000000000
-1.050000 43030104.0000000000000
-1.350000 43040104.0000000000000
-1.650000 43050104.0000000000000
-1.950000 43060104.0000000000000
-2.250000 43070104.0000000000000
-2.550000 43080104.0000000000000
-2.850000 43090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 43000105
+1 0 0 0 0 1 1 5 43010105
+1 0 0 0 0 2 1 5 43020105
+1 0 0 0 0 3 1 5 43030105
+1 0 0 0 0 4 1 5 43040105
+1 0 0 0 0 5 1 5 43050105
+1 0 0 0 0 6 1 5 43060105
+1 0 0 0 0 7 1 5 43070105
+1 0 0 0 0 8 1 5 43080105
+1 0 0 0 0 9 1 5 43090105
+
-"Time = 1.000000
-0.150000 43000104.0000000000000
-0.450000 43010104.0000000000000
-0.750000 43020104.0000000000000
-1.050000 43030104.0000000000000
-1.350000 43040104.0000000000000
-1.650000 43050104.0000000000000
-1.950000 43060104.0000000000000
-2.250000 43070104.0000000000000
-2.550000 43080104.0000000000000
-2.850000 43090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/fxz.yl b/CarpetAttic/Cart3dTest/test/quadrant/fxz.yl
index de7a50130..ee6cb44b1 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/fxz.yl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/fxz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz y (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 43000005
+0 0 0 0 0 0 1 5 43000105
+0 0 0 0 0 0 2 5 43000205
+0 0 0 0 0 0 3 5 43000305
+0 0 0 0 0 0 4 5 43000405
+0 0 0 0 0 0 5 5 43000505
+0 0 0 0 0 0 6 5 43000605
+0 0 0 0 0 0 7 5 43000705
+0 0 0 0 0 0 8 5 43000805
+0 0 0 0 0 0 9 5 43000905
-"Time = 0.000000
--0.150000 43000004.0000000000000
-0.150000 43000104.0000000000000
-0.450000 43000204.0000000000000
-0.750000 43000304.0000000000000
-1.050000 43000404.0000000000000
-1.350000 43000504.0000000000000
-1.650000 43000604.0000000000000
-1.950000 43000704.0000000000000
-2.250000 43000804.0000000000000
-2.550000 43000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 43000105
+1 0 0 0 0 0 1 5 43000105
+1 0 0 0 0 0 2 5 43000205
+1 0 0 0 0 0 3 5 43000305
+1 0 0 0 0 0 4 5 43000405
+1 0 0 0 0 0 5 5 43000505
+1 0 0 0 0 0 6 5 43000605
+1 0 0 0 0 0 7 5 43000705
+1 0 0 0 0 0 8 5 43000805
+1 0 0 0 0 0 9 5 43000905
+
-"Time = 1.000000
--0.150000 43000104.0000000000000
-0.150000 43000104.0000000000000
-0.450000 43000204.0000000000000
-0.750000 43000304.0000000000000
-1.050000 43000404.0000000000000
-1.350000 43000504.0000000000000
-1.650000 43000604.0000000000000
-1.950000 43000704.0000000000000
-2.250000 43000804.0000000000000
-2.550000 43000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/fxz.zl b/CarpetAttic/Cart3dTest/test/quadrant/fxz.zl
index 1fef8a20b..a833696d3 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/fxz.zl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/fxz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz z (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 43000100
+0 0 0 0 0 0 1 1 43000101
+0 0 0 0 0 0 1 2 43000102
+0 0 0 0 0 0 1 3 43000103
+0 0 0 0 0 0 1 4 43000104
+0 0 0 0 0 0 1 5 43000105
+0 0 0 0 0 0 1 6 43000106
+0 0 0 0 0 0 1 7 43000107
+0 0 0 0 0 0 1 8 43000108
+0 0 0 0 0 0 1 9 43000109
-"Time = 0.000000
--1.350000 43000100.0000000000000
--1.050000 43000101.0000000000000
--0.750000 43000102.0000000000000
--0.450000 43000103.0000000000000
--0.150000 43000104.0000000000000
-0.150000 43000105.0000000000000
-0.450000 43000106.0000000000000
-0.750000 43000107.0000000000000
-1.050000 43000108.0000000000000
-1.350000 43000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 43000100
+1 0 0 0 0 0 1 1 43000101
+1 0 0 0 0 0 1 2 43000102
+1 0 0 0 0 0 1 3 43000103
+1 0 0 0 0 0 1 4 43000104
+1 0 0 0 0 0 1 5 43000105
+1 0 0 0 0 0 1 6 43000106
+1 0 0 0 0 0 1 7 43000107
+1 0 0 0 0 0 1 8 43000108
+1 0 0 0 0 0 1 9 43000109
+
-"Time = 1.000000
--1.350000 43000100.0000000000000
--1.050000 43000101.0000000000000
--0.750000 43000102.0000000000000
--0.450000 43000103.0000000000000
--0.150000 43000104.0000000000000
-0.150000 43000105.0000000000000
-0.450000 43000106.0000000000000
-0.750000 43000107.0000000000000
-1.050000 43000108.0000000000000
-1.350000 43000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/fyx.xl b/CarpetAttic/Cart3dTest/test/quadrant/fyx.xl
index e7ea16cc5..b5d966b83 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/fyx.xl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/fyx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx x (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 44000105
+0 0 0 0 0 1 1 5 44010105
+0 0 0 0 0 2 1 5 44020105
+0 0 0 0 0 3 1 5 44030105
+0 0 0 0 0 4 1 5 44040105
+0 0 0 0 0 5 1 5 44050105
+0 0 0 0 0 6 1 5 44060105
+0 0 0 0 0 7 1 5 44070105
+0 0 0 0 0 8 1 5 44080105
+0 0 0 0 0 9 1 5 44090105
-"Time = 0.000000
-0.150000 44000104.0000000000000
-0.450000 44010104.0000000000000
-0.750000 44020104.0000000000000
-1.050000 44030104.0000000000000
-1.350000 44040104.0000000000000
-1.650000 44050104.0000000000000
-1.950000 44060104.0000000000000
-2.250000 44070104.0000000000000
-2.550000 44080104.0000000000000
-2.850000 44090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 44000105
+1 0 0 0 0 1 1 5 44010105
+1 0 0 0 0 2 1 5 44020105
+1 0 0 0 0 3 1 5 44030105
+1 0 0 0 0 4 1 5 44040105
+1 0 0 0 0 5 1 5 44050105
+1 0 0 0 0 6 1 5 44060105
+1 0 0 0 0 7 1 5 44070105
+1 0 0 0 0 8 1 5 44080105
+1 0 0 0 0 9 1 5 44090105
+
-"Time = 1.000000
-0.150000 44000104.0000000000000
-0.450000 44010104.0000000000000
-0.750000 44020104.0000000000000
-1.050000 44030104.0000000000000
-1.350000 44040104.0000000000000
-1.650000 44050104.0000000000000
-1.950000 44060104.0000000000000
-2.250000 44070104.0000000000000
-2.550000 44080104.0000000000000
-2.850000 44090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/fyx.yl b/CarpetAttic/Cart3dTest/test/quadrant/fyx.yl
index 6ccd740f8..fbb2463ac 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/fyx.yl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/fyx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx y (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 44000005
+0 0 0 0 0 0 1 5 44000105
+0 0 0 0 0 0 2 5 44000205
+0 0 0 0 0 0 3 5 44000305
+0 0 0 0 0 0 4 5 44000405
+0 0 0 0 0 0 5 5 44000505
+0 0 0 0 0 0 6 5 44000605
+0 0 0 0 0 0 7 5 44000705
+0 0 0 0 0 0 8 5 44000805
+0 0 0 0 0 0 9 5 44000905
-"Time = 0.000000
--0.150000 44000004.0000000000000
-0.150000 44000104.0000000000000
-0.450000 44000204.0000000000000
-0.750000 44000304.0000000000000
-1.050000 44000404.0000000000000
-1.350000 44000504.0000000000000
-1.650000 44000604.0000000000000
-1.950000 44000704.0000000000000
-2.250000 44000804.0000000000000
-2.550000 44000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 -44000105
+1 0 0 0 0 0 1 5 44000105
+1 0 0 0 0 0 2 5 44000205
+1 0 0 0 0 0 3 5 44000305
+1 0 0 0 0 0 4 5 44000405
+1 0 0 0 0 0 5 5 44000505
+1 0 0 0 0 0 6 5 44000605
+1 0 0 0 0 0 7 5 44000705
+1 0 0 0 0 0 8 5 44000805
+1 0 0 0 0 0 9 5 44000905
+
-"Time = 1.000000
--0.150000 -44000104.0000000000000
-0.150000 44000104.0000000000000
-0.450000 44000204.0000000000000
-0.750000 44000304.0000000000000
-1.050000 44000404.0000000000000
-1.350000 44000504.0000000000000
-1.650000 44000604.0000000000000
-1.950000 44000704.0000000000000
-2.250000 44000804.0000000000000
-2.550000 44000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/fyx.zl b/CarpetAttic/Cart3dTest/test/quadrant/fyx.zl
index a799e7ba5..98d334e95 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/fyx.zl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/fyx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx z (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 44000100
+0 0 0 0 0 0 1 1 44000101
+0 0 0 0 0 0 1 2 44000102
+0 0 0 0 0 0 1 3 44000103
+0 0 0 0 0 0 1 4 44000104
+0 0 0 0 0 0 1 5 44000105
+0 0 0 0 0 0 1 6 44000106
+0 0 0 0 0 0 1 7 44000107
+0 0 0 0 0 0 1 8 44000108
+0 0 0 0 0 0 1 9 44000109
-"Time = 0.000000
--1.350000 44000100.0000000000000
--1.050000 44000101.0000000000000
--0.750000 44000102.0000000000000
--0.450000 44000103.0000000000000
--0.150000 44000104.0000000000000
-0.150000 44000105.0000000000000
-0.450000 44000106.0000000000000
-0.750000 44000107.0000000000000
-1.050000 44000108.0000000000000
-1.350000 44000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 44000100
+1 0 0 0 0 0 1 1 44000101
+1 0 0 0 0 0 1 2 44000102
+1 0 0 0 0 0 1 3 44000103
+1 0 0 0 0 0 1 4 44000104
+1 0 0 0 0 0 1 5 44000105
+1 0 0 0 0 0 1 6 44000106
+1 0 0 0 0 0 1 7 44000107
+1 0 0 0 0 0 1 8 44000108
+1 0 0 0 0 0 1 9 44000109
+
-"Time = 1.000000
--1.350000 44000100.0000000000000
--1.050000 44000101.0000000000000
--0.750000 44000102.0000000000000
--0.450000 44000103.0000000000000
--0.150000 44000104.0000000000000
-0.150000 44000105.0000000000000
-0.450000 44000106.0000000000000
-0.750000 44000107.0000000000000
-1.050000 44000108.0000000000000
-1.350000 44000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/fyy.xl b/CarpetAttic/Cart3dTest/test/quadrant/fyy.xl
index ae1e70d7d..2d2270ab7 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/fyy.xl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/fyy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy x (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 45000105
+0 0 0 0 0 1 1 5 45010105
+0 0 0 0 0 2 1 5 45020105
+0 0 0 0 0 3 1 5 45030105
+0 0 0 0 0 4 1 5 45040105
+0 0 0 0 0 5 1 5 45050105
+0 0 0 0 0 6 1 5 45060105
+0 0 0 0 0 7 1 5 45070105
+0 0 0 0 0 8 1 5 45080105
+0 0 0 0 0 9 1 5 45090105
-"Time = 0.000000
-0.150000 45000104.0000000000000
-0.450000 45010104.0000000000000
-0.750000 45020104.0000000000000
-1.050000 45030104.0000000000000
-1.350000 45040104.0000000000000
-1.650000 45050104.0000000000000
-1.950000 45060104.0000000000000
-2.250000 45070104.0000000000000
-2.550000 45080104.0000000000000
-2.850000 45090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 45000105
+1 0 0 0 0 1 1 5 45010105
+1 0 0 0 0 2 1 5 45020105
+1 0 0 0 0 3 1 5 45030105
+1 0 0 0 0 4 1 5 45040105
+1 0 0 0 0 5 1 5 45050105
+1 0 0 0 0 6 1 5 45060105
+1 0 0 0 0 7 1 5 45070105
+1 0 0 0 0 8 1 5 45080105
+1 0 0 0 0 9 1 5 45090105
+
-"Time = 1.000000
-0.150000 45000104.0000000000000
-0.450000 45010104.0000000000000
-0.750000 45020104.0000000000000
-1.050000 45030104.0000000000000
-1.350000 45040104.0000000000000
-1.650000 45050104.0000000000000
-1.950000 45060104.0000000000000
-2.250000 45070104.0000000000000
-2.550000 45080104.0000000000000
-2.850000 45090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/fyy.yl b/CarpetAttic/Cart3dTest/test/quadrant/fyy.yl
index 3cdf36611..f01bc4e64 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/fyy.yl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/fyy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy y (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 45000005
+0 0 0 0 0 0 1 5 45000105
+0 0 0 0 0 0 2 5 45000205
+0 0 0 0 0 0 3 5 45000305
+0 0 0 0 0 0 4 5 45000405
+0 0 0 0 0 0 5 5 45000505
+0 0 0 0 0 0 6 5 45000605
+0 0 0 0 0 0 7 5 45000705
+0 0 0 0 0 0 8 5 45000805
+0 0 0 0 0 0 9 5 45000905
-"Time = 0.000000
--0.150000 45000004.0000000000000
-0.150000 45000104.0000000000000
-0.450000 45000204.0000000000000
-0.750000 45000304.0000000000000
-1.050000 45000404.0000000000000
-1.350000 45000504.0000000000000
-1.650000 45000604.0000000000000
-1.950000 45000704.0000000000000
-2.250000 45000804.0000000000000
-2.550000 45000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 45000105
+1 0 0 0 0 0 1 5 45000105
+1 0 0 0 0 0 2 5 45000205
+1 0 0 0 0 0 3 5 45000305
+1 0 0 0 0 0 4 5 45000405
+1 0 0 0 0 0 5 5 45000505
+1 0 0 0 0 0 6 5 45000605
+1 0 0 0 0 0 7 5 45000705
+1 0 0 0 0 0 8 5 45000805
+1 0 0 0 0 0 9 5 45000905
+
-"Time = 1.000000
--0.150000 45000104.0000000000000
-0.150000 45000104.0000000000000
-0.450000 45000204.0000000000000
-0.750000 45000304.0000000000000
-1.050000 45000404.0000000000000
-1.350000 45000504.0000000000000
-1.650000 45000604.0000000000000
-1.950000 45000704.0000000000000
-2.250000 45000804.0000000000000
-2.550000 45000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/fyy.zl b/CarpetAttic/Cart3dTest/test/quadrant/fyy.zl
index e076b783b..1af5792e7 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/fyy.zl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/fyy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy z (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 45000100
+0 0 0 0 0 0 1 1 45000101
+0 0 0 0 0 0 1 2 45000102
+0 0 0 0 0 0 1 3 45000103
+0 0 0 0 0 0 1 4 45000104
+0 0 0 0 0 0 1 5 45000105
+0 0 0 0 0 0 1 6 45000106
+0 0 0 0 0 0 1 7 45000107
+0 0 0 0 0 0 1 8 45000108
+0 0 0 0 0 0 1 9 45000109
-"Time = 0.000000
--1.350000 45000100.0000000000000
--1.050000 45000101.0000000000000
--0.750000 45000102.0000000000000
--0.450000 45000103.0000000000000
--0.150000 45000104.0000000000000
-0.150000 45000105.0000000000000
-0.450000 45000106.0000000000000
-0.750000 45000107.0000000000000
-1.050000 45000108.0000000000000
-1.350000 45000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 45000100
+1 0 0 0 0 0 1 1 45000101
+1 0 0 0 0 0 1 2 45000102
+1 0 0 0 0 0 1 3 45000103
+1 0 0 0 0 0 1 4 45000104
+1 0 0 0 0 0 1 5 45000105
+1 0 0 0 0 0 1 6 45000106
+1 0 0 0 0 0 1 7 45000107
+1 0 0 0 0 0 1 8 45000108
+1 0 0 0 0 0 1 9 45000109
+
-"Time = 1.000000
--1.350000 45000100.0000000000000
--1.050000 45000101.0000000000000
--0.750000 45000102.0000000000000
--0.450000 45000103.0000000000000
--0.150000 45000104.0000000000000
-0.150000 45000105.0000000000000
-0.450000 45000106.0000000000000
-0.750000 45000107.0000000000000
-1.050000 45000108.0000000000000
-1.350000 45000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/fyz.xl b/CarpetAttic/Cart3dTest/test/quadrant/fyz.xl
index 6df306349..1511cbd22 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/fyz.xl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/fyz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz x (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 46000105
+0 0 0 0 0 1 1 5 46010105
+0 0 0 0 0 2 1 5 46020105
+0 0 0 0 0 3 1 5 46030105
+0 0 0 0 0 4 1 5 46040105
+0 0 0 0 0 5 1 5 46050105
+0 0 0 0 0 6 1 5 46060105
+0 0 0 0 0 7 1 5 46070105
+0 0 0 0 0 8 1 5 46080105
+0 0 0 0 0 9 1 5 46090105
-"Time = 0.000000
-0.150000 46000104.0000000000000
-0.450000 46010104.0000000000000
-0.750000 46020104.0000000000000
-1.050000 46030104.0000000000000
-1.350000 46040104.0000000000000
-1.650000 46050104.0000000000000
-1.950000 46060104.0000000000000
-2.250000 46070104.0000000000000
-2.550000 46080104.0000000000000
-2.850000 46090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 46000105
+1 0 0 0 0 1 1 5 46010105
+1 0 0 0 0 2 1 5 46020105
+1 0 0 0 0 3 1 5 46030105
+1 0 0 0 0 4 1 5 46040105
+1 0 0 0 0 5 1 5 46050105
+1 0 0 0 0 6 1 5 46060105
+1 0 0 0 0 7 1 5 46070105
+1 0 0 0 0 8 1 5 46080105
+1 0 0 0 0 9 1 5 46090105
+
-"Time = 1.000000
-0.150000 46000104.0000000000000
-0.450000 46010104.0000000000000
-0.750000 46020104.0000000000000
-1.050000 46030104.0000000000000
-1.350000 46040104.0000000000000
-1.650000 46050104.0000000000000
-1.950000 46060104.0000000000000
-2.250000 46070104.0000000000000
-2.550000 46080104.0000000000000
-2.850000 46090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/fyz.yl b/CarpetAttic/Cart3dTest/test/quadrant/fyz.yl
index 3f03ab869..c3f4ba018 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/fyz.yl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/fyz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz y (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 46000005
+0 0 0 0 0 0 1 5 46000105
+0 0 0 0 0 0 2 5 46000205
+0 0 0 0 0 0 3 5 46000305
+0 0 0 0 0 0 4 5 46000405
+0 0 0 0 0 0 5 5 46000505
+0 0 0 0 0 0 6 5 46000605
+0 0 0 0 0 0 7 5 46000705
+0 0 0 0 0 0 8 5 46000805
+0 0 0 0 0 0 9 5 46000905
-"Time = 0.000000
--0.150000 46000004.0000000000000
-0.150000 46000104.0000000000000
-0.450000 46000204.0000000000000
-0.750000 46000304.0000000000000
-1.050000 46000404.0000000000000
-1.350000 46000504.0000000000000
-1.650000 46000604.0000000000000
-1.950000 46000704.0000000000000
-2.250000 46000804.0000000000000
-2.550000 46000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 -46000105
+1 0 0 0 0 0 1 5 46000105
+1 0 0 0 0 0 2 5 46000205
+1 0 0 0 0 0 3 5 46000305
+1 0 0 0 0 0 4 5 46000405
+1 0 0 0 0 0 5 5 46000505
+1 0 0 0 0 0 6 5 46000605
+1 0 0 0 0 0 7 5 46000705
+1 0 0 0 0 0 8 5 46000805
+1 0 0 0 0 0 9 5 46000905
+
-"Time = 1.000000
--0.150000 -46000104.0000000000000
-0.150000 46000104.0000000000000
-0.450000 46000204.0000000000000
-0.750000 46000304.0000000000000
-1.050000 46000404.0000000000000
-1.350000 46000504.0000000000000
-1.650000 46000604.0000000000000
-1.950000 46000704.0000000000000
-2.250000 46000804.0000000000000
-2.550000 46000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/fyz.zl b/CarpetAttic/Cart3dTest/test/quadrant/fyz.zl
index 9bbe5c6ed..198097eb5 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/fyz.zl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/fyz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz z (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 46000100
+0 0 0 0 0 0 1 1 46000101
+0 0 0 0 0 0 1 2 46000102
+0 0 0 0 0 0 1 3 46000103
+0 0 0 0 0 0 1 4 46000104
+0 0 0 0 0 0 1 5 46000105
+0 0 0 0 0 0 1 6 46000106
+0 0 0 0 0 0 1 7 46000107
+0 0 0 0 0 0 1 8 46000108
+0 0 0 0 0 0 1 9 46000109
-"Time = 0.000000
--1.350000 46000100.0000000000000
--1.050000 46000101.0000000000000
--0.750000 46000102.0000000000000
--0.450000 46000103.0000000000000
--0.150000 46000104.0000000000000
-0.150000 46000105.0000000000000
-0.450000 46000106.0000000000000
-0.750000 46000107.0000000000000
-1.050000 46000108.0000000000000
-1.350000 46000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 46000100
+1 0 0 0 0 0 1 1 46000101
+1 0 0 0 0 0 1 2 46000102
+1 0 0 0 0 0 1 3 46000103
+1 0 0 0 0 0 1 4 46000104
+1 0 0 0 0 0 1 5 46000105
+1 0 0 0 0 0 1 6 46000106
+1 0 0 0 0 0 1 7 46000107
+1 0 0 0 0 0 1 8 46000108
+1 0 0 0 0 0 1 9 46000109
+
-"Time = 1.000000
--1.350000 46000100.0000000000000
--1.050000 46000101.0000000000000
--0.750000 46000102.0000000000000
--0.450000 46000103.0000000000000
--0.150000 46000104.0000000000000
-0.150000 46000105.0000000000000
-0.450000 46000106.0000000000000
-0.750000 46000107.0000000000000
-1.050000 46000108.0000000000000
-1.350000 46000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/fzx.xl b/CarpetAttic/Cart3dTest/test/quadrant/fzx.xl
index 515ac9516..7d5236a48 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/fzx.xl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/fzx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx x (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 47000105
+0 0 0 0 0 1 1 5 47010105
+0 0 0 0 0 2 1 5 47020105
+0 0 0 0 0 3 1 5 47030105
+0 0 0 0 0 4 1 5 47040105
+0 0 0 0 0 5 1 5 47050105
+0 0 0 0 0 6 1 5 47060105
+0 0 0 0 0 7 1 5 47070105
+0 0 0 0 0 8 1 5 47080105
+0 0 0 0 0 9 1 5 47090105
-"Time = 0.000000
-0.150000 47000104.0000000000000
-0.450000 47010104.0000000000000
-0.750000 47020104.0000000000000
-1.050000 47030104.0000000000000
-1.350000 47040104.0000000000000
-1.650000 47050104.0000000000000
-1.950000 47060104.0000000000000
-2.250000 47070104.0000000000000
-2.550000 47080104.0000000000000
-2.850000 47090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 47000105
+1 0 0 0 0 1 1 5 47010105
+1 0 0 0 0 2 1 5 47020105
+1 0 0 0 0 3 1 5 47030105
+1 0 0 0 0 4 1 5 47040105
+1 0 0 0 0 5 1 5 47050105
+1 0 0 0 0 6 1 5 47060105
+1 0 0 0 0 7 1 5 47070105
+1 0 0 0 0 8 1 5 47080105
+1 0 0 0 0 9 1 5 47090105
+
-"Time = 1.000000
-0.150000 47000104.0000000000000
-0.450000 47010104.0000000000000
-0.750000 47020104.0000000000000
-1.050000 47030104.0000000000000
-1.350000 47040104.0000000000000
-1.650000 47050104.0000000000000
-1.950000 47060104.0000000000000
-2.250000 47070104.0000000000000
-2.550000 47080104.0000000000000
-2.850000 47090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/fzx.yl b/CarpetAttic/Cart3dTest/test/quadrant/fzx.yl
index 3f586079c..8476e5210 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/fzx.yl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/fzx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx y (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 47000005
+0 0 0 0 0 0 1 5 47000105
+0 0 0 0 0 0 2 5 47000205
+0 0 0 0 0 0 3 5 47000305
+0 0 0 0 0 0 4 5 47000405
+0 0 0 0 0 0 5 5 47000505
+0 0 0 0 0 0 6 5 47000605
+0 0 0 0 0 0 7 5 47000705
+0 0 0 0 0 0 8 5 47000805
+0 0 0 0 0 0 9 5 47000905
-"Time = 0.000000
--0.150000 47000004.0000000000000
-0.150000 47000104.0000000000000
-0.450000 47000204.0000000000000
-0.750000 47000304.0000000000000
-1.050000 47000404.0000000000000
-1.350000 47000504.0000000000000
-1.650000 47000604.0000000000000
-1.950000 47000704.0000000000000
-2.250000 47000804.0000000000000
-2.550000 47000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 47000105
+1 0 0 0 0 0 1 5 47000105
+1 0 0 0 0 0 2 5 47000205
+1 0 0 0 0 0 3 5 47000305
+1 0 0 0 0 0 4 5 47000405
+1 0 0 0 0 0 5 5 47000505
+1 0 0 0 0 0 6 5 47000605
+1 0 0 0 0 0 7 5 47000705
+1 0 0 0 0 0 8 5 47000805
+1 0 0 0 0 0 9 5 47000905
+
-"Time = 1.000000
--0.150000 47000104.0000000000000
-0.150000 47000104.0000000000000
-0.450000 47000204.0000000000000
-0.750000 47000304.0000000000000
-1.050000 47000404.0000000000000
-1.350000 47000504.0000000000000
-1.650000 47000604.0000000000000
-1.950000 47000704.0000000000000
-2.250000 47000804.0000000000000
-2.550000 47000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/fzx.zl b/CarpetAttic/Cart3dTest/test/quadrant/fzx.zl
index aaff9cdb1..882a1b1da 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/fzx.zl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/fzx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx z (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 47000100
+0 0 0 0 0 0 1 1 47000101
+0 0 0 0 0 0 1 2 47000102
+0 0 0 0 0 0 1 3 47000103
+0 0 0 0 0 0 1 4 47000104
+0 0 0 0 0 0 1 5 47000105
+0 0 0 0 0 0 1 6 47000106
+0 0 0 0 0 0 1 7 47000107
+0 0 0 0 0 0 1 8 47000108
+0 0 0 0 0 0 1 9 47000109
-"Time = 0.000000
--1.350000 47000100.0000000000000
--1.050000 47000101.0000000000000
--0.750000 47000102.0000000000000
--0.450000 47000103.0000000000000
--0.150000 47000104.0000000000000
-0.150000 47000105.0000000000000
-0.450000 47000106.0000000000000
-0.750000 47000107.0000000000000
-1.050000 47000108.0000000000000
-1.350000 47000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 47000100
+1 0 0 0 0 0 1 1 47000101
+1 0 0 0 0 0 1 2 47000102
+1 0 0 0 0 0 1 3 47000103
+1 0 0 0 0 0 1 4 47000104
+1 0 0 0 0 0 1 5 47000105
+1 0 0 0 0 0 1 6 47000106
+1 0 0 0 0 0 1 7 47000107
+1 0 0 0 0 0 1 8 47000108
+1 0 0 0 0 0 1 9 47000109
+
-"Time = 1.000000
--1.350000 47000100.0000000000000
--1.050000 47000101.0000000000000
--0.750000 47000102.0000000000000
--0.450000 47000103.0000000000000
--0.150000 47000104.0000000000000
-0.150000 47000105.0000000000000
-0.450000 47000106.0000000000000
-0.750000 47000107.0000000000000
-1.050000 47000108.0000000000000
-1.350000 47000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/fzy.xl b/CarpetAttic/Cart3dTest/test/quadrant/fzy.xl
index ed8352758..ea27ee9fa 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/fzy.xl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/fzy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy x (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 48000105
+0 0 0 0 0 1 1 5 48010105
+0 0 0 0 0 2 1 5 48020105
+0 0 0 0 0 3 1 5 48030105
+0 0 0 0 0 4 1 5 48040105
+0 0 0 0 0 5 1 5 48050105
+0 0 0 0 0 6 1 5 48060105
+0 0 0 0 0 7 1 5 48070105
+0 0 0 0 0 8 1 5 48080105
+0 0 0 0 0 9 1 5 48090105
-"Time = 0.000000
-0.150000 48000104.0000000000000
-0.450000 48010104.0000000000000
-0.750000 48020104.0000000000000
-1.050000 48030104.0000000000000
-1.350000 48040104.0000000000000
-1.650000 48050104.0000000000000
-1.950000 48060104.0000000000000
-2.250000 48070104.0000000000000
-2.550000 48080104.0000000000000
-2.850000 48090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 48000105
+1 0 0 0 0 1 1 5 48010105
+1 0 0 0 0 2 1 5 48020105
+1 0 0 0 0 3 1 5 48030105
+1 0 0 0 0 4 1 5 48040105
+1 0 0 0 0 5 1 5 48050105
+1 0 0 0 0 6 1 5 48060105
+1 0 0 0 0 7 1 5 48070105
+1 0 0 0 0 8 1 5 48080105
+1 0 0 0 0 9 1 5 48090105
+
-"Time = 1.000000
-0.150000 48000104.0000000000000
-0.450000 48010104.0000000000000
-0.750000 48020104.0000000000000
-1.050000 48030104.0000000000000
-1.350000 48040104.0000000000000
-1.650000 48050104.0000000000000
-1.950000 48060104.0000000000000
-2.250000 48070104.0000000000000
-2.550000 48080104.0000000000000
-2.850000 48090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/fzy.yl b/CarpetAttic/Cart3dTest/test/quadrant/fzy.yl
index ddff231d5..e3c7eb1ed 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/fzy.yl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/fzy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy y (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 48000005
+0 0 0 0 0 0 1 5 48000105
+0 0 0 0 0 0 2 5 48000205
+0 0 0 0 0 0 3 5 48000305
+0 0 0 0 0 0 4 5 48000405
+0 0 0 0 0 0 5 5 48000505
+0 0 0 0 0 0 6 5 48000605
+0 0 0 0 0 0 7 5 48000705
+0 0 0 0 0 0 8 5 48000805
+0 0 0 0 0 0 9 5 48000905
-"Time = 0.000000
--0.150000 48000004.0000000000000
-0.150000 48000104.0000000000000
-0.450000 48000204.0000000000000
-0.750000 48000304.0000000000000
-1.050000 48000404.0000000000000
-1.350000 48000504.0000000000000
-1.650000 48000604.0000000000000
-1.950000 48000704.0000000000000
-2.250000 48000804.0000000000000
-2.550000 48000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 -48000105
+1 0 0 0 0 0 1 5 48000105
+1 0 0 0 0 0 2 5 48000205
+1 0 0 0 0 0 3 5 48000305
+1 0 0 0 0 0 4 5 48000405
+1 0 0 0 0 0 5 5 48000505
+1 0 0 0 0 0 6 5 48000605
+1 0 0 0 0 0 7 5 48000705
+1 0 0 0 0 0 8 5 48000805
+1 0 0 0 0 0 9 5 48000905
+
-"Time = 1.000000
--0.150000 -48000104.0000000000000
-0.150000 48000104.0000000000000
-0.450000 48000204.0000000000000
-0.750000 48000304.0000000000000
-1.050000 48000404.0000000000000
-1.350000 48000504.0000000000000
-1.650000 48000604.0000000000000
-1.950000 48000704.0000000000000
-2.250000 48000804.0000000000000
-2.550000 48000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/fzy.zl b/CarpetAttic/Cart3dTest/test/quadrant/fzy.zl
index 1878bb067..4baa764b1 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/fzy.zl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/fzy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy z (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 48000100
+0 0 0 0 0 0 1 1 48000101
+0 0 0 0 0 0 1 2 48000102
+0 0 0 0 0 0 1 3 48000103
+0 0 0 0 0 0 1 4 48000104
+0 0 0 0 0 0 1 5 48000105
+0 0 0 0 0 0 1 6 48000106
+0 0 0 0 0 0 1 7 48000107
+0 0 0 0 0 0 1 8 48000108
+0 0 0 0 0 0 1 9 48000109
-"Time = 0.000000
--1.350000 48000100.0000000000000
--1.050000 48000101.0000000000000
--0.750000 48000102.0000000000000
--0.450000 48000103.0000000000000
--0.150000 48000104.0000000000000
-0.150000 48000105.0000000000000
-0.450000 48000106.0000000000000
-0.750000 48000107.0000000000000
-1.050000 48000108.0000000000000
-1.350000 48000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 48000100
+1 0 0 0 0 0 1 1 48000101
+1 0 0 0 0 0 1 2 48000102
+1 0 0 0 0 0 1 3 48000103
+1 0 0 0 0 0 1 4 48000104
+1 0 0 0 0 0 1 5 48000105
+1 0 0 0 0 0 1 6 48000106
+1 0 0 0 0 0 1 7 48000107
+1 0 0 0 0 0 1 8 48000108
+1 0 0 0 0 0 1 9 48000109
+
-"Time = 1.000000
--1.350000 48000100.0000000000000
--1.050000 48000101.0000000000000
--0.750000 48000102.0000000000000
--0.450000 48000103.0000000000000
--0.150000 48000104.0000000000000
-0.150000 48000105.0000000000000
-0.450000 48000106.0000000000000
-0.750000 48000107.0000000000000
-1.050000 48000108.0000000000000
-1.350000 48000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/fzz.xl b/CarpetAttic/Cart3dTest/test/quadrant/fzz.xl
index 74515c029..4a3af627e 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/fzz.xl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/fzz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz x (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 49000105
+0 0 0 0 0 1 1 5 49010105
+0 0 0 0 0 2 1 5 49020105
+0 0 0 0 0 3 1 5 49030105
+0 0 0 0 0 4 1 5 49040105
+0 0 0 0 0 5 1 5 49050105
+0 0 0 0 0 6 1 5 49060105
+0 0 0 0 0 7 1 5 49070105
+0 0 0 0 0 8 1 5 49080105
+0 0 0 0 0 9 1 5 49090105
-"Time = 0.000000
-0.150000 49000104.0000000000000
-0.450000 49010104.0000000000000
-0.750000 49020104.0000000000000
-1.050000 49030104.0000000000000
-1.350000 49040104.0000000000000
-1.650000 49050104.0000000000000
-1.950000 49060104.0000000000000
-2.250000 49070104.0000000000000
-2.550000 49080104.0000000000000
-2.850000 49090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 49000105
+1 0 0 0 0 1 1 5 49010105
+1 0 0 0 0 2 1 5 49020105
+1 0 0 0 0 3 1 5 49030105
+1 0 0 0 0 4 1 5 49040105
+1 0 0 0 0 5 1 5 49050105
+1 0 0 0 0 6 1 5 49060105
+1 0 0 0 0 7 1 5 49070105
+1 0 0 0 0 8 1 5 49080105
+1 0 0 0 0 9 1 5 49090105
+
-"Time = 1.000000
-0.150000 49000104.0000000000000
-0.450000 49010104.0000000000000
-0.750000 49020104.0000000000000
-1.050000 49030104.0000000000000
-1.350000 49040104.0000000000000
-1.650000 49050104.0000000000000
-1.950000 49060104.0000000000000
-2.250000 49070104.0000000000000
-2.550000 49080104.0000000000000
-2.850000 49090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/fzz.yl b/CarpetAttic/Cart3dTest/test/quadrant/fzz.yl
index d06470b0e..18f30ff73 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/fzz.yl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/fzz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz y (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 49000005
+0 0 0 0 0 0 1 5 49000105
+0 0 0 0 0 0 2 5 49000205
+0 0 0 0 0 0 3 5 49000305
+0 0 0 0 0 0 4 5 49000405
+0 0 0 0 0 0 5 5 49000505
+0 0 0 0 0 0 6 5 49000605
+0 0 0 0 0 0 7 5 49000705
+0 0 0 0 0 0 8 5 49000805
+0 0 0 0 0 0 9 5 49000905
-"Time = 0.000000
--0.150000 49000004.0000000000000
-0.150000 49000104.0000000000000
-0.450000 49000204.0000000000000
-0.750000 49000304.0000000000000
-1.050000 49000404.0000000000000
-1.350000 49000504.0000000000000
-1.650000 49000604.0000000000000
-1.950000 49000704.0000000000000
-2.250000 49000804.0000000000000
-2.550000 49000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 49000105
+1 0 0 0 0 0 1 5 49000105
+1 0 0 0 0 0 2 5 49000205
+1 0 0 0 0 0 3 5 49000305
+1 0 0 0 0 0 4 5 49000405
+1 0 0 0 0 0 5 5 49000505
+1 0 0 0 0 0 6 5 49000605
+1 0 0 0 0 0 7 5 49000705
+1 0 0 0 0 0 8 5 49000805
+1 0 0 0 0 0 9 5 49000905
+
-"Time = 1.000000
--0.150000 49000104.0000000000000
-0.150000 49000104.0000000000000
-0.450000 49000204.0000000000000
-0.750000 49000304.0000000000000
-1.050000 49000404.0000000000000
-1.350000 49000504.0000000000000
-1.650000 49000604.0000000000000
-1.950000 49000704.0000000000000
-2.250000 49000804.0000000000000
-2.550000 49000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/fzz.zl b/CarpetAttic/Cart3dTest/test/quadrant/fzz.zl
index 324aa786d..2c6b7609b 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/fzz.zl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/fzz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz z (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 49000100
+0 0 0 0 0 0 1 1 49000101
+0 0 0 0 0 0 1 2 49000102
+0 0 0 0 0 0 1 3 49000103
+0 0 0 0 0 0 1 4 49000104
+0 0 0 0 0 0 1 5 49000105
+0 0 0 0 0 0 1 6 49000106
+0 0 0 0 0 0 1 7 49000107
+0 0 0 0 0 0 1 8 49000108
+0 0 0 0 0 0 1 9 49000109
-"Time = 0.000000
--1.350000 49000100.0000000000000
--1.050000 49000101.0000000000000
--0.750000 49000102.0000000000000
--0.450000 49000103.0000000000000
--0.150000 49000104.0000000000000
-0.150000 49000105.0000000000000
-0.450000 49000106.0000000000000
-0.750000 49000107.0000000000000
-1.050000 49000108.0000000000000
-1.350000 49000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 49000100
+1 0 0 0 0 0 1 1 49000101
+1 0 0 0 0 0 1 2 49000102
+1 0 0 0 0 0 1 3 49000103
+1 0 0 0 0 0 1 4 49000104
+1 0 0 0 0 0 1 5 49000105
+1 0 0 0 0 0 1 6 49000106
+1 0 0 0 0 0 1 7 49000107
+1 0 0 0 0 0 1 8 49000108
+1 0 0 0 0 0 1 9 49000109
+
-"Time = 1.000000
--1.350000 49000100.0000000000000
--1.050000 49000101.0000000000000
--0.750000 49000102.0000000000000
--0.450000 49000103.0000000000000
--0.150000 49000104.0000000000000
-0.150000 49000105.0000000000000
-0.450000 49000106.0000000000000
-0.750000 49000107.0000000000000
-1.050000 49000108.0000000000000
-1.350000 49000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/s.xl b/CarpetAttic/Cart3dTest/test/quadrant/s.xl
index e4c0e7084..fdf407fcd 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/s.xl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/s.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::s x (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 1000105
+0 0 0 0 0 1 1 5 1010105
+0 0 0 0 0 2 1 5 1020105
+0 0 0 0 0 3 1 5 1030105
+0 0 0 0 0 4 1 5 1040105
+0 0 0 0 0 5 1 5 1050105
+0 0 0 0 0 6 1 5 1060105
+0 0 0 0 0 7 1 5 1070105
+0 0 0 0 0 8 1 5 1080105
+0 0 0 0 0 9 1 5 1090105
-"Time = 0.000000
-0.150000 1000104.0000000000000
-0.450000 1010104.0000000000000
-0.750000 1020104.0000000000000
-1.050000 1030104.0000000000000
-1.350000 1040104.0000000000000
-1.650000 1050104.0000000000000
-1.950000 1060104.0000000000000
-2.250000 1070104.0000000000000
-2.550000 1080104.0000000000000
-2.850000 1090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 1000105
+1 0 0 0 0 1 1 5 1010105
+1 0 0 0 0 2 1 5 1020105
+1 0 0 0 0 3 1 5 1030105
+1 0 0 0 0 4 1 5 1040105
+1 0 0 0 0 5 1 5 1050105
+1 0 0 0 0 6 1 5 1060105
+1 0 0 0 0 7 1 5 1070105
+1 0 0 0 0 8 1 5 1080105
+1 0 0 0 0 9 1 5 1090105
+
-"Time = 1.000000
-0.150000 1000104.0000000000000
-0.450000 1010104.0000000000000
-0.750000 1020104.0000000000000
-1.050000 1030104.0000000000000
-1.350000 1040104.0000000000000
-1.650000 1050104.0000000000000
-1.950000 1060104.0000000000000
-2.250000 1070104.0000000000000
-2.550000 1080104.0000000000000
-2.850000 1090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/s.yl b/CarpetAttic/Cart3dTest/test/quadrant/s.yl
index bac0f10ca..b7ef5e6db 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/s.yl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/s.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::s y (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 1000005
+0 0 0 0 0 0 1 5 1000105
+0 0 0 0 0 0 2 5 1000205
+0 0 0 0 0 0 3 5 1000305
+0 0 0 0 0 0 4 5 1000405
+0 0 0 0 0 0 5 5 1000505
+0 0 0 0 0 0 6 5 1000605
+0 0 0 0 0 0 7 5 1000705
+0 0 0 0 0 0 8 5 1000805
+0 0 0 0 0 0 9 5 1000905
-"Time = 0.000000
--0.150000 1000004.0000000000000
-0.150000 1000104.0000000000000
-0.450000 1000204.0000000000000
-0.750000 1000304.0000000000000
-1.050000 1000404.0000000000000
-1.350000 1000504.0000000000000
-1.650000 1000604.0000000000000
-1.950000 1000704.0000000000000
-2.250000 1000804.0000000000000
-2.550000 1000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 1000105
+1 0 0 0 0 0 1 5 1000105
+1 0 0 0 0 0 2 5 1000205
+1 0 0 0 0 0 3 5 1000305
+1 0 0 0 0 0 4 5 1000405
+1 0 0 0 0 0 5 5 1000505
+1 0 0 0 0 0 6 5 1000605
+1 0 0 0 0 0 7 5 1000705
+1 0 0 0 0 0 8 5 1000805
+1 0 0 0 0 0 9 5 1000905
+
-"Time = 1.000000
--0.150000 1000104.0000000000000
-0.150000 1000104.0000000000000
-0.450000 1000204.0000000000000
-0.750000 1000304.0000000000000
-1.050000 1000404.0000000000000
-1.350000 1000504.0000000000000
-1.650000 1000604.0000000000000
-1.950000 1000704.0000000000000
-2.250000 1000804.0000000000000
-2.550000 1000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/s.zl b/CarpetAttic/Cart3dTest/test/quadrant/s.zl
index e08e59443..d806aad3e 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/s.zl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/s.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::s z (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 1000100
+0 0 0 0 0 0 1 1 1000101
+0 0 0 0 0 0 1 2 1000102
+0 0 0 0 0 0 1 3 1000103
+0 0 0 0 0 0 1 4 1000104
+0 0 0 0 0 0 1 5 1000105
+0 0 0 0 0 0 1 6 1000106
+0 0 0 0 0 0 1 7 1000107
+0 0 0 0 0 0 1 8 1000108
+0 0 0 0 0 0 1 9 1000109
-"Time = 0.000000
--1.350000 1000100.0000000000000
--1.050000 1000101.0000000000000
--0.750000 1000102.0000000000000
--0.450000 1000103.0000000000000
--0.150000 1000104.0000000000000
-0.150000 1000105.0000000000000
-0.450000 1000106.0000000000000
-0.750000 1000107.0000000000000
-1.050000 1000108.0000000000000
-1.350000 1000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 1000100
+1 0 0 0 0 0 1 1 1000101
+1 0 0 0 0 0 1 2 1000102
+1 0 0 0 0 0 1 3 1000103
+1 0 0 0 0 0 1 4 1000104
+1 0 0 0 0 0 1 5 1000105
+1 0 0 0 0 0 1 6 1000106
+1 0 0 0 0 0 1 7 1000107
+1 0 0 0 0 0 1 8 1000108
+1 0 0 0 0 0 1 9 1000109
+
-"Time = 1.000000
--1.350000 1000100.0000000000000
--1.050000 1000101.0000000000000
--0.750000 1000102.0000000000000
--0.450000 1000103.0000000000000
--0.150000 1000104.0000000000000
-0.150000 1000105.0000000000000
-0.450000 1000106.0000000000000
-0.750000 1000107.0000000000000
-1.050000 1000108.0000000000000
-1.350000 1000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/spher3d_r.xl b/CarpetAttic/Cart3dTest/test/quadrant/spher3d_r.xl
index a7e55a2d4..d01051ad6 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/spher3d_r.xl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/spher3d_r.xl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r x (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 0.259807621135332
+0 0 0 0 0 1 1 5 0.49749371855331
+0 0 0 0 0 2 1 5 0.779422863405995
+0 0 0 0 0 3 1 5 1.07121426428143
+0 0 0 0 0 4 1 5 1.36656503687164
+0 0 0 0 0 5 1 5 1.66358047596141
+0 0 0 0 0 6 1 5 1.9615045245933
+0 0 0 0 0 7 1 5 2.2599778759979
+0 0 0 0 0 8 1 5 2.5588083163848
+0 0 0 0 0 9 1 5 2.85788383248865
-"Time = 0.000000
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
-2.550000 2.5588083163848
-2.850000 2.8578838324886
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 0.259807621135332
+1 0 0 0 0 1 1 5 0.49749371855331
+1 0 0 0 0 2 1 5 0.779422863405995
+1 0 0 0 0 3 1 5 1.07121426428143
+1 0 0 0 0 4 1 5 1.36656503687164
+1 0 0 0 0 5 1 5 1.66358047596141
+1 0 0 0 0 6 1 5 1.9615045245933
+1 0 0 0 0 7 1 5 2.2599778759979
+1 0 0 0 0 8 1 5 2.5588083163848
+1 0 0 0 0 9 1 5 2.85788383248865
+
-"Time = 1.000000
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
-2.550000 2.5588083163848
-2.850000 2.8578838324886
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/spher3d_r.yl b/CarpetAttic/Cart3dTest/test/quadrant/spher3d_r.yl
index aab231952..d6cf48a8f 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/spher3d_r.yl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/spher3d_r.yl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r y (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 0.259807621135332
+0 0 0 0 0 0 1 5 0.259807621135332
+0 0 0 0 0 0 2 5 0.49749371855331
+0 0 0 0 0 0 3 5 0.779422863405995
+0 0 0 0 0 0 4 5 1.07121426428143
+0 0 0 0 0 0 5 5 1.36656503687164
+0 0 0 0 0 0 6 5 1.66358047596141
+0 0 0 0 0 0 7 5 1.9615045245933
+0 0 0 0 0 0 8 5 2.2599778759979
+0 0 0 0 0 0 9 5 2.5588083163848
-"Time = 0.000000
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
-2.550000 2.5588083163848
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 0.259807621135332
+1 0 0 0 0 0 1 5 0.259807621135332
+1 0 0 0 0 0 2 5 0.49749371855331
+1 0 0 0 0 0 3 5 0.779422863405995
+1 0 0 0 0 0 4 5 1.07121426428143
+1 0 0 0 0 0 5 5 1.36656503687164
+1 0 0 0 0 0 6 5 1.66358047596141
+1 0 0 0 0 0 7 5 1.9615045245933
+1 0 0 0 0 0 8 5 2.2599778759979
+1 0 0 0 0 0 9 5 2.5588083163848
+
-"Time = 1.000000
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
-2.550000 2.5588083163848
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/spher3d_r.zl b/CarpetAttic/Cart3dTest/test/quadrant/spher3d_r.zl
index 2865c92e4..8d275dd3b 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/spher3d_r.zl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/spher3d_r.zl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r z (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 1.36656503687164
+0 0 0 0 0 0 1 1 1.07121426428143
+0 0 0 0 0 0 1 2 0.779422863405995
+0 0 0 0 0 0 1 3 0.49749371855331
+0 0 0 0 0 0 1 4 0.259807621135332
+0 0 0 0 0 0 1 5 0.259807621135332
+0 0 0 0 0 0 1 6 0.49749371855331
+0 0 0 0 0 0 1 7 0.779422863405995
+0 0 0 0 0 0 1 8 1.07121426428143
+0 0 0 0 0 0 1 9 1.36656503687164
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 1.36656503687164
+1 0 0 0 0 0 1 1 1.07121426428143
+1 0 0 0 0 0 1 2 0.779422863405995
+1 0 0 0 0 0 1 3 0.49749371855331
+1 0 0 0 0 0 1 4 0.259807621135332
+1 0 0 0 0 0 1 5 0.259807621135332
+1 0 0 0 0 0 1 6 0.49749371855331
+1 0 0 0 0 0 1 7 0.779422863405995
+1 0 0 0 0 0 1 8 1.07121426428143
+1 0 0 0 0 0 1 9 1.36656503687164
+
-"Time = 1.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/txx.xl b/CarpetAttic/Cart3dTest/test/quadrant/txx.xl
index 8db5cf7c4..b285daee6 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/txx.xl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/txx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx x (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 21000105
+0 0 0 0 0 1 1 5 21010105
+0 0 0 0 0 2 1 5 21020105
+0 0 0 0 0 3 1 5 21030105
+0 0 0 0 0 4 1 5 21040105
+0 0 0 0 0 5 1 5 21050105
+0 0 0 0 0 6 1 5 21060105
+0 0 0 0 0 7 1 5 21070105
+0 0 0 0 0 8 1 5 21080105
+0 0 0 0 0 9 1 5 21090105
-"Time = 0.000000
-0.150000 21000104.0000000000000
-0.450000 21010104.0000000000000
-0.750000 21020104.0000000000000
-1.050000 21030104.0000000000000
-1.350000 21040104.0000000000000
-1.650000 21050104.0000000000000
-1.950000 21060104.0000000000000
-2.250000 21070104.0000000000000
-2.550000 21080104.0000000000000
-2.850000 21090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 21000105
+1 0 0 0 0 1 1 5 21010105
+1 0 0 0 0 2 1 5 21020105
+1 0 0 0 0 3 1 5 21030105
+1 0 0 0 0 4 1 5 21040105
+1 0 0 0 0 5 1 5 21050105
+1 0 0 0 0 6 1 5 21060105
+1 0 0 0 0 7 1 5 21070105
+1 0 0 0 0 8 1 5 21080105
+1 0 0 0 0 9 1 5 21090105
+
-"Time = 1.000000
-0.150000 21000104.0000000000000
-0.450000 21010104.0000000000000
-0.750000 21020104.0000000000000
-1.050000 21030104.0000000000000
-1.350000 21040104.0000000000000
-1.650000 21050104.0000000000000
-1.950000 21060104.0000000000000
-2.250000 21070104.0000000000000
-2.550000 21080104.0000000000000
-2.850000 21090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/txx.yl b/CarpetAttic/Cart3dTest/test/quadrant/txx.yl
index b3c3bcfe2..e7f6f1f5e 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/txx.yl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/txx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx y (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 21000005
+0 0 0 0 0 0 1 5 21000105
+0 0 0 0 0 0 2 5 21000205
+0 0 0 0 0 0 3 5 21000305
+0 0 0 0 0 0 4 5 21000405
+0 0 0 0 0 0 5 5 21000505
+0 0 0 0 0 0 6 5 21000605
+0 0 0 0 0 0 7 5 21000705
+0 0 0 0 0 0 8 5 21000805
+0 0 0 0 0 0 9 5 21000905
-"Time = 0.000000
--0.150000 21000004.0000000000000
-0.150000 21000104.0000000000000
-0.450000 21000204.0000000000000
-0.750000 21000304.0000000000000
-1.050000 21000404.0000000000000
-1.350000 21000504.0000000000000
-1.650000 21000604.0000000000000
-1.950000 21000704.0000000000000
-2.250000 21000804.0000000000000
-2.550000 21000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 21000105
+1 0 0 0 0 0 1 5 21000105
+1 0 0 0 0 0 2 5 21000205
+1 0 0 0 0 0 3 5 21000305
+1 0 0 0 0 0 4 5 21000405
+1 0 0 0 0 0 5 5 21000505
+1 0 0 0 0 0 6 5 21000605
+1 0 0 0 0 0 7 5 21000705
+1 0 0 0 0 0 8 5 21000805
+1 0 0 0 0 0 9 5 21000905
+
-"Time = 1.000000
--0.150000 21000104.0000000000000
-0.150000 21000104.0000000000000
-0.450000 21000204.0000000000000
-0.750000 21000304.0000000000000
-1.050000 21000404.0000000000000
-1.350000 21000504.0000000000000
-1.650000 21000604.0000000000000
-1.950000 21000704.0000000000000
-2.250000 21000804.0000000000000
-2.550000 21000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/txx.zl b/CarpetAttic/Cart3dTest/test/quadrant/txx.zl
index 4a6824f14..7a52adf1f 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/txx.zl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/txx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx z (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 21000100
+0 0 0 0 0 0 1 1 21000101
+0 0 0 0 0 0 1 2 21000102
+0 0 0 0 0 0 1 3 21000103
+0 0 0 0 0 0 1 4 21000104
+0 0 0 0 0 0 1 5 21000105
+0 0 0 0 0 0 1 6 21000106
+0 0 0 0 0 0 1 7 21000107
+0 0 0 0 0 0 1 8 21000108
+0 0 0 0 0 0 1 9 21000109
-"Time = 0.000000
--1.350000 21000100.0000000000000
--1.050000 21000101.0000000000000
--0.750000 21000102.0000000000000
--0.450000 21000103.0000000000000
--0.150000 21000104.0000000000000
-0.150000 21000105.0000000000000
-0.450000 21000106.0000000000000
-0.750000 21000107.0000000000000
-1.050000 21000108.0000000000000
-1.350000 21000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 21000100
+1 0 0 0 0 0 1 1 21000101
+1 0 0 0 0 0 1 2 21000102
+1 0 0 0 0 0 1 3 21000103
+1 0 0 0 0 0 1 4 21000104
+1 0 0 0 0 0 1 5 21000105
+1 0 0 0 0 0 1 6 21000106
+1 0 0 0 0 0 1 7 21000107
+1 0 0 0 0 0 1 8 21000108
+1 0 0 0 0 0 1 9 21000109
+
-"Time = 1.000000
--1.350000 21000100.0000000000000
--1.050000 21000101.0000000000000
--0.750000 21000102.0000000000000
--0.450000 21000103.0000000000000
--0.150000 21000104.0000000000000
-0.150000 21000105.0000000000000
-0.450000 21000106.0000000000000
-0.750000 21000107.0000000000000
-1.050000 21000108.0000000000000
-1.350000 21000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/txy.xl b/CarpetAttic/Cart3dTest/test/quadrant/txy.xl
index db59221ec..0c86c4ec1 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/txy.xl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/txy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy x (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 22000105
+0 0 0 0 0 1 1 5 22010105
+0 0 0 0 0 2 1 5 22020105
+0 0 0 0 0 3 1 5 22030105
+0 0 0 0 0 4 1 5 22040105
+0 0 0 0 0 5 1 5 22050105
+0 0 0 0 0 6 1 5 22060105
+0 0 0 0 0 7 1 5 22070105
+0 0 0 0 0 8 1 5 22080105
+0 0 0 0 0 9 1 5 22090105
-"Time = 0.000000
-0.150000 22000104.0000000000000
-0.450000 22010104.0000000000000
-0.750000 22020104.0000000000000
-1.050000 22030104.0000000000000
-1.350000 22040104.0000000000000
-1.650000 22050104.0000000000000
-1.950000 22060104.0000000000000
-2.250000 22070104.0000000000000
-2.550000 22080104.0000000000000
-2.850000 22090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 22000105
+1 0 0 0 0 1 1 5 22010105
+1 0 0 0 0 2 1 5 22020105
+1 0 0 0 0 3 1 5 22030105
+1 0 0 0 0 4 1 5 22040105
+1 0 0 0 0 5 1 5 22050105
+1 0 0 0 0 6 1 5 22060105
+1 0 0 0 0 7 1 5 22070105
+1 0 0 0 0 8 1 5 22080105
+1 0 0 0 0 9 1 5 22090105
+
-"Time = 1.000000
-0.150000 22000104.0000000000000
-0.450000 22010104.0000000000000
-0.750000 22020104.0000000000000
-1.050000 22030104.0000000000000
-1.350000 22040104.0000000000000
-1.650000 22050104.0000000000000
-1.950000 22060104.0000000000000
-2.250000 22070104.0000000000000
-2.550000 22080104.0000000000000
-2.850000 22090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/txy.yl b/CarpetAttic/Cart3dTest/test/quadrant/txy.yl
index 303d2f8e1..c9ca944f3 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/txy.yl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/txy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy y (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 22000005
+0 0 0 0 0 0 1 5 22000105
+0 0 0 0 0 0 2 5 22000205
+0 0 0 0 0 0 3 5 22000305
+0 0 0 0 0 0 4 5 22000405
+0 0 0 0 0 0 5 5 22000505
+0 0 0 0 0 0 6 5 22000605
+0 0 0 0 0 0 7 5 22000705
+0 0 0 0 0 0 8 5 22000805
+0 0 0 0 0 0 9 5 22000905
-"Time = 0.000000
--0.150000 22000004.0000000000000
-0.150000 22000104.0000000000000
-0.450000 22000204.0000000000000
-0.750000 22000304.0000000000000
-1.050000 22000404.0000000000000
-1.350000 22000504.0000000000000
-1.650000 22000604.0000000000000
-1.950000 22000704.0000000000000
-2.250000 22000804.0000000000000
-2.550000 22000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 -22000105
+1 0 0 0 0 0 1 5 22000105
+1 0 0 0 0 0 2 5 22000205
+1 0 0 0 0 0 3 5 22000305
+1 0 0 0 0 0 4 5 22000405
+1 0 0 0 0 0 5 5 22000505
+1 0 0 0 0 0 6 5 22000605
+1 0 0 0 0 0 7 5 22000705
+1 0 0 0 0 0 8 5 22000805
+1 0 0 0 0 0 9 5 22000905
+
-"Time = 1.000000
--0.150000 -22000104.0000000000000
-0.150000 22000104.0000000000000
-0.450000 22000204.0000000000000
-0.750000 22000304.0000000000000
-1.050000 22000404.0000000000000
-1.350000 22000504.0000000000000
-1.650000 22000604.0000000000000
-1.950000 22000704.0000000000000
-2.250000 22000804.0000000000000
-2.550000 22000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/txy.zl b/CarpetAttic/Cart3dTest/test/quadrant/txy.zl
index 1ca3bc3ae..55c8fe543 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/txy.zl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/txy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy z (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 22000100
+0 0 0 0 0 0 1 1 22000101
+0 0 0 0 0 0 1 2 22000102
+0 0 0 0 0 0 1 3 22000103
+0 0 0 0 0 0 1 4 22000104
+0 0 0 0 0 0 1 5 22000105
+0 0 0 0 0 0 1 6 22000106
+0 0 0 0 0 0 1 7 22000107
+0 0 0 0 0 0 1 8 22000108
+0 0 0 0 0 0 1 9 22000109
-"Time = 0.000000
--1.350000 22000100.0000000000000
--1.050000 22000101.0000000000000
--0.750000 22000102.0000000000000
--0.450000 22000103.0000000000000
--0.150000 22000104.0000000000000
-0.150000 22000105.0000000000000
-0.450000 22000106.0000000000000
-0.750000 22000107.0000000000000
-1.050000 22000108.0000000000000
-1.350000 22000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 22000100
+1 0 0 0 0 0 1 1 22000101
+1 0 0 0 0 0 1 2 22000102
+1 0 0 0 0 0 1 3 22000103
+1 0 0 0 0 0 1 4 22000104
+1 0 0 0 0 0 1 5 22000105
+1 0 0 0 0 0 1 6 22000106
+1 0 0 0 0 0 1 7 22000107
+1 0 0 0 0 0 1 8 22000108
+1 0 0 0 0 0 1 9 22000109
+
-"Time = 1.000000
--1.350000 22000100.0000000000000
--1.050000 22000101.0000000000000
--0.750000 22000102.0000000000000
--0.450000 22000103.0000000000000
--0.150000 22000104.0000000000000
-0.150000 22000105.0000000000000
-0.450000 22000106.0000000000000
-0.750000 22000107.0000000000000
-1.050000 22000108.0000000000000
-1.350000 22000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/txz.xl b/CarpetAttic/Cart3dTest/test/quadrant/txz.xl
index acc8422b4..faacecdad 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/txz.xl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/txz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz x (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 23000105
+0 0 0 0 0 1 1 5 23010105
+0 0 0 0 0 2 1 5 23020105
+0 0 0 0 0 3 1 5 23030105
+0 0 0 0 0 4 1 5 23040105
+0 0 0 0 0 5 1 5 23050105
+0 0 0 0 0 6 1 5 23060105
+0 0 0 0 0 7 1 5 23070105
+0 0 0 0 0 8 1 5 23080105
+0 0 0 0 0 9 1 5 23090105
-"Time = 0.000000
-0.150000 23000104.0000000000000
-0.450000 23010104.0000000000000
-0.750000 23020104.0000000000000
-1.050000 23030104.0000000000000
-1.350000 23040104.0000000000000
-1.650000 23050104.0000000000000
-1.950000 23060104.0000000000000
-2.250000 23070104.0000000000000
-2.550000 23080104.0000000000000
-2.850000 23090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 23000105
+1 0 0 0 0 1 1 5 23010105
+1 0 0 0 0 2 1 5 23020105
+1 0 0 0 0 3 1 5 23030105
+1 0 0 0 0 4 1 5 23040105
+1 0 0 0 0 5 1 5 23050105
+1 0 0 0 0 6 1 5 23060105
+1 0 0 0 0 7 1 5 23070105
+1 0 0 0 0 8 1 5 23080105
+1 0 0 0 0 9 1 5 23090105
+
-"Time = 1.000000
-0.150000 23000104.0000000000000
-0.450000 23010104.0000000000000
-0.750000 23020104.0000000000000
-1.050000 23030104.0000000000000
-1.350000 23040104.0000000000000
-1.650000 23050104.0000000000000
-1.950000 23060104.0000000000000
-2.250000 23070104.0000000000000
-2.550000 23080104.0000000000000
-2.850000 23090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/txz.yl b/CarpetAttic/Cart3dTest/test/quadrant/txz.yl
index 18094882f..4b40ce463 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/txz.yl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/txz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz y (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 23000005
+0 0 0 0 0 0 1 5 23000105
+0 0 0 0 0 0 2 5 23000205
+0 0 0 0 0 0 3 5 23000305
+0 0 0 0 0 0 4 5 23000405
+0 0 0 0 0 0 5 5 23000505
+0 0 0 0 0 0 6 5 23000605
+0 0 0 0 0 0 7 5 23000705
+0 0 0 0 0 0 8 5 23000805
+0 0 0 0 0 0 9 5 23000905
-"Time = 0.000000
--0.150000 23000004.0000000000000
-0.150000 23000104.0000000000000
-0.450000 23000204.0000000000000
-0.750000 23000304.0000000000000
-1.050000 23000404.0000000000000
-1.350000 23000504.0000000000000
-1.650000 23000604.0000000000000
-1.950000 23000704.0000000000000
-2.250000 23000804.0000000000000
-2.550000 23000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 23000105
+1 0 0 0 0 0 1 5 23000105
+1 0 0 0 0 0 2 5 23000205
+1 0 0 0 0 0 3 5 23000305
+1 0 0 0 0 0 4 5 23000405
+1 0 0 0 0 0 5 5 23000505
+1 0 0 0 0 0 6 5 23000605
+1 0 0 0 0 0 7 5 23000705
+1 0 0 0 0 0 8 5 23000805
+1 0 0 0 0 0 9 5 23000905
+
-"Time = 1.000000
--0.150000 23000104.0000000000000
-0.150000 23000104.0000000000000
-0.450000 23000204.0000000000000
-0.750000 23000304.0000000000000
-1.050000 23000404.0000000000000
-1.350000 23000504.0000000000000
-1.650000 23000604.0000000000000
-1.950000 23000704.0000000000000
-2.250000 23000804.0000000000000
-2.550000 23000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/txz.zl b/CarpetAttic/Cart3dTest/test/quadrant/txz.zl
index 524d01306..bac3693c4 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/txz.zl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/txz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz z (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 23000100
+0 0 0 0 0 0 1 1 23000101
+0 0 0 0 0 0 1 2 23000102
+0 0 0 0 0 0 1 3 23000103
+0 0 0 0 0 0 1 4 23000104
+0 0 0 0 0 0 1 5 23000105
+0 0 0 0 0 0 1 6 23000106
+0 0 0 0 0 0 1 7 23000107
+0 0 0 0 0 0 1 8 23000108
+0 0 0 0 0 0 1 9 23000109
-"Time = 0.000000
--1.350000 23000100.0000000000000
--1.050000 23000101.0000000000000
--0.750000 23000102.0000000000000
--0.450000 23000103.0000000000000
--0.150000 23000104.0000000000000
-0.150000 23000105.0000000000000
-0.450000 23000106.0000000000000
-0.750000 23000107.0000000000000
-1.050000 23000108.0000000000000
-1.350000 23000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 23000100
+1 0 0 0 0 0 1 1 23000101
+1 0 0 0 0 0 1 2 23000102
+1 0 0 0 0 0 1 3 23000103
+1 0 0 0 0 0 1 4 23000104
+1 0 0 0 0 0 1 5 23000105
+1 0 0 0 0 0 1 6 23000106
+1 0 0 0 0 0 1 7 23000107
+1 0 0 0 0 0 1 8 23000108
+1 0 0 0 0 0 1 9 23000109
+
-"Time = 1.000000
--1.350000 23000100.0000000000000
--1.050000 23000101.0000000000000
--0.750000 23000102.0000000000000
--0.450000 23000103.0000000000000
--0.150000 23000104.0000000000000
-0.150000 23000105.0000000000000
-0.450000 23000106.0000000000000
-0.750000 23000107.0000000000000
-1.050000 23000108.0000000000000
-1.350000 23000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/tyy.xl b/CarpetAttic/Cart3dTest/test/quadrant/tyy.xl
index 6cc63ea47..566c0922e 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/tyy.xl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/tyy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy x (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 24000105
+0 0 0 0 0 1 1 5 24010105
+0 0 0 0 0 2 1 5 24020105
+0 0 0 0 0 3 1 5 24030105
+0 0 0 0 0 4 1 5 24040105
+0 0 0 0 0 5 1 5 24050105
+0 0 0 0 0 6 1 5 24060105
+0 0 0 0 0 7 1 5 24070105
+0 0 0 0 0 8 1 5 24080105
+0 0 0 0 0 9 1 5 24090105
-"Time = 0.000000
-0.150000 24000104.0000000000000
-0.450000 24010104.0000000000000
-0.750000 24020104.0000000000000
-1.050000 24030104.0000000000000
-1.350000 24040104.0000000000000
-1.650000 24050104.0000000000000
-1.950000 24060104.0000000000000
-2.250000 24070104.0000000000000
-2.550000 24080104.0000000000000
-2.850000 24090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 24000105
+1 0 0 0 0 1 1 5 24010105
+1 0 0 0 0 2 1 5 24020105
+1 0 0 0 0 3 1 5 24030105
+1 0 0 0 0 4 1 5 24040105
+1 0 0 0 0 5 1 5 24050105
+1 0 0 0 0 6 1 5 24060105
+1 0 0 0 0 7 1 5 24070105
+1 0 0 0 0 8 1 5 24080105
+1 0 0 0 0 9 1 5 24090105
+
-"Time = 1.000000
-0.150000 24000104.0000000000000
-0.450000 24010104.0000000000000
-0.750000 24020104.0000000000000
-1.050000 24030104.0000000000000
-1.350000 24040104.0000000000000
-1.650000 24050104.0000000000000
-1.950000 24060104.0000000000000
-2.250000 24070104.0000000000000
-2.550000 24080104.0000000000000
-2.850000 24090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/tyy.yl b/CarpetAttic/Cart3dTest/test/quadrant/tyy.yl
index 7f216a1c2..0b86bc2a7 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/tyy.yl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/tyy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy y (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 24000005
+0 0 0 0 0 0 1 5 24000105
+0 0 0 0 0 0 2 5 24000205
+0 0 0 0 0 0 3 5 24000305
+0 0 0 0 0 0 4 5 24000405
+0 0 0 0 0 0 5 5 24000505
+0 0 0 0 0 0 6 5 24000605
+0 0 0 0 0 0 7 5 24000705
+0 0 0 0 0 0 8 5 24000805
+0 0 0 0 0 0 9 5 24000905
-"Time = 0.000000
--0.150000 24000004.0000000000000
-0.150000 24000104.0000000000000
-0.450000 24000204.0000000000000
-0.750000 24000304.0000000000000
-1.050000 24000404.0000000000000
-1.350000 24000504.0000000000000
-1.650000 24000604.0000000000000
-1.950000 24000704.0000000000000
-2.250000 24000804.0000000000000
-2.550000 24000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 24000105
+1 0 0 0 0 0 1 5 24000105
+1 0 0 0 0 0 2 5 24000205
+1 0 0 0 0 0 3 5 24000305
+1 0 0 0 0 0 4 5 24000405
+1 0 0 0 0 0 5 5 24000505
+1 0 0 0 0 0 6 5 24000605
+1 0 0 0 0 0 7 5 24000705
+1 0 0 0 0 0 8 5 24000805
+1 0 0 0 0 0 9 5 24000905
+
-"Time = 1.000000
--0.150000 24000104.0000000000000
-0.150000 24000104.0000000000000
-0.450000 24000204.0000000000000
-0.750000 24000304.0000000000000
-1.050000 24000404.0000000000000
-1.350000 24000504.0000000000000
-1.650000 24000604.0000000000000
-1.950000 24000704.0000000000000
-2.250000 24000804.0000000000000
-2.550000 24000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/tyy.zl b/CarpetAttic/Cart3dTest/test/quadrant/tyy.zl
index 107f89e00..ed8d3603d 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/tyy.zl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/tyy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy z (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 24000100
+0 0 0 0 0 0 1 1 24000101
+0 0 0 0 0 0 1 2 24000102
+0 0 0 0 0 0 1 3 24000103
+0 0 0 0 0 0 1 4 24000104
+0 0 0 0 0 0 1 5 24000105
+0 0 0 0 0 0 1 6 24000106
+0 0 0 0 0 0 1 7 24000107
+0 0 0 0 0 0 1 8 24000108
+0 0 0 0 0 0 1 9 24000109
-"Time = 0.000000
--1.350000 24000100.0000000000000
--1.050000 24000101.0000000000000
--0.750000 24000102.0000000000000
--0.450000 24000103.0000000000000
--0.150000 24000104.0000000000000
-0.150000 24000105.0000000000000
-0.450000 24000106.0000000000000
-0.750000 24000107.0000000000000
-1.050000 24000108.0000000000000
-1.350000 24000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 24000100
+1 0 0 0 0 0 1 1 24000101
+1 0 0 0 0 0 1 2 24000102
+1 0 0 0 0 0 1 3 24000103
+1 0 0 0 0 0 1 4 24000104
+1 0 0 0 0 0 1 5 24000105
+1 0 0 0 0 0 1 6 24000106
+1 0 0 0 0 0 1 7 24000107
+1 0 0 0 0 0 1 8 24000108
+1 0 0 0 0 0 1 9 24000109
+
-"Time = 1.000000
--1.350000 24000100.0000000000000
--1.050000 24000101.0000000000000
--0.750000 24000102.0000000000000
--0.450000 24000103.0000000000000
--0.150000 24000104.0000000000000
-0.150000 24000105.0000000000000
-0.450000 24000106.0000000000000
-0.750000 24000107.0000000000000
-1.050000 24000108.0000000000000
-1.350000 24000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/tyz.xl b/CarpetAttic/Cart3dTest/test/quadrant/tyz.xl
index 5931df4b0..1cac2cd93 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/tyz.xl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/tyz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz x (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 25000105
+0 0 0 0 0 1 1 5 25010105
+0 0 0 0 0 2 1 5 25020105
+0 0 0 0 0 3 1 5 25030105
+0 0 0 0 0 4 1 5 25040105
+0 0 0 0 0 5 1 5 25050105
+0 0 0 0 0 6 1 5 25060105
+0 0 0 0 0 7 1 5 25070105
+0 0 0 0 0 8 1 5 25080105
+0 0 0 0 0 9 1 5 25090105
-"Time = 0.000000
-0.150000 25000104.0000000000000
-0.450000 25010104.0000000000000
-0.750000 25020104.0000000000000
-1.050000 25030104.0000000000000
-1.350000 25040104.0000000000000
-1.650000 25050104.0000000000000
-1.950000 25060104.0000000000000
-2.250000 25070104.0000000000000
-2.550000 25080104.0000000000000
-2.850000 25090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 25000105
+1 0 0 0 0 1 1 5 25010105
+1 0 0 0 0 2 1 5 25020105
+1 0 0 0 0 3 1 5 25030105
+1 0 0 0 0 4 1 5 25040105
+1 0 0 0 0 5 1 5 25050105
+1 0 0 0 0 6 1 5 25060105
+1 0 0 0 0 7 1 5 25070105
+1 0 0 0 0 8 1 5 25080105
+1 0 0 0 0 9 1 5 25090105
+
-"Time = 1.000000
-0.150000 25000104.0000000000000
-0.450000 25010104.0000000000000
-0.750000 25020104.0000000000000
-1.050000 25030104.0000000000000
-1.350000 25040104.0000000000000
-1.650000 25050104.0000000000000
-1.950000 25060104.0000000000000
-2.250000 25070104.0000000000000
-2.550000 25080104.0000000000000
-2.850000 25090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/tyz.yl b/CarpetAttic/Cart3dTest/test/quadrant/tyz.yl
index 3480e8c3e..d3f735ad3 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/tyz.yl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/tyz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz y (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 25000005
+0 0 0 0 0 0 1 5 25000105
+0 0 0 0 0 0 2 5 25000205
+0 0 0 0 0 0 3 5 25000305
+0 0 0 0 0 0 4 5 25000405
+0 0 0 0 0 0 5 5 25000505
+0 0 0 0 0 0 6 5 25000605
+0 0 0 0 0 0 7 5 25000705
+0 0 0 0 0 0 8 5 25000805
+0 0 0 0 0 0 9 5 25000905
-"Time = 0.000000
--0.150000 25000004.0000000000000
-0.150000 25000104.0000000000000
-0.450000 25000204.0000000000000
-0.750000 25000304.0000000000000
-1.050000 25000404.0000000000000
-1.350000 25000504.0000000000000
-1.650000 25000604.0000000000000
-1.950000 25000704.0000000000000
-2.250000 25000804.0000000000000
-2.550000 25000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 -25000105
+1 0 0 0 0 0 1 5 25000105
+1 0 0 0 0 0 2 5 25000205
+1 0 0 0 0 0 3 5 25000305
+1 0 0 0 0 0 4 5 25000405
+1 0 0 0 0 0 5 5 25000505
+1 0 0 0 0 0 6 5 25000605
+1 0 0 0 0 0 7 5 25000705
+1 0 0 0 0 0 8 5 25000805
+1 0 0 0 0 0 9 5 25000905
+
-"Time = 1.000000
--0.150000 -25000104.0000000000000
-0.150000 25000104.0000000000000
-0.450000 25000204.0000000000000
-0.750000 25000304.0000000000000
-1.050000 25000404.0000000000000
-1.350000 25000504.0000000000000
-1.650000 25000604.0000000000000
-1.950000 25000704.0000000000000
-2.250000 25000804.0000000000000
-2.550000 25000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/tyz.zl b/CarpetAttic/Cart3dTest/test/quadrant/tyz.zl
index 108e8f3bc..38dc66d6f 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/tyz.zl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/tyz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz z (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 25000100
+0 0 0 0 0 0 1 1 25000101
+0 0 0 0 0 0 1 2 25000102
+0 0 0 0 0 0 1 3 25000103
+0 0 0 0 0 0 1 4 25000104
+0 0 0 0 0 0 1 5 25000105
+0 0 0 0 0 0 1 6 25000106
+0 0 0 0 0 0 1 7 25000107
+0 0 0 0 0 0 1 8 25000108
+0 0 0 0 0 0 1 9 25000109
-"Time = 0.000000
--1.350000 25000100.0000000000000
--1.050000 25000101.0000000000000
--0.750000 25000102.0000000000000
--0.450000 25000103.0000000000000
--0.150000 25000104.0000000000000
-0.150000 25000105.0000000000000
-0.450000 25000106.0000000000000
-0.750000 25000107.0000000000000
-1.050000 25000108.0000000000000
-1.350000 25000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 25000100
+1 0 0 0 0 0 1 1 25000101
+1 0 0 0 0 0 1 2 25000102
+1 0 0 0 0 0 1 3 25000103
+1 0 0 0 0 0 1 4 25000104
+1 0 0 0 0 0 1 5 25000105
+1 0 0 0 0 0 1 6 25000106
+1 0 0 0 0 0 1 7 25000107
+1 0 0 0 0 0 1 8 25000108
+1 0 0 0 0 0 1 9 25000109
+
-"Time = 1.000000
--1.350000 25000100.0000000000000
--1.050000 25000101.0000000000000
--0.750000 25000102.0000000000000
--0.450000 25000103.0000000000000
--0.150000 25000104.0000000000000
-0.150000 25000105.0000000000000
-0.450000 25000106.0000000000000
-0.750000 25000107.0000000000000
-1.050000 25000108.0000000000000
-1.350000 25000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/tzz.xl b/CarpetAttic/Cart3dTest/test/quadrant/tzz.xl
index 7038fadcf..1dfc09b33 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/tzz.xl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/tzz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz x (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 26000105
+0 0 0 0 0 1 1 5 26010105
+0 0 0 0 0 2 1 5 26020105
+0 0 0 0 0 3 1 5 26030105
+0 0 0 0 0 4 1 5 26040105
+0 0 0 0 0 5 1 5 26050105
+0 0 0 0 0 6 1 5 26060105
+0 0 0 0 0 7 1 5 26070105
+0 0 0 0 0 8 1 5 26080105
+0 0 0 0 0 9 1 5 26090105
-"Time = 0.000000
-0.150000 26000104.0000000000000
-0.450000 26010104.0000000000000
-0.750000 26020104.0000000000000
-1.050000 26030104.0000000000000
-1.350000 26040104.0000000000000
-1.650000 26050104.0000000000000
-1.950000 26060104.0000000000000
-2.250000 26070104.0000000000000
-2.550000 26080104.0000000000000
-2.850000 26090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 26000105
+1 0 0 0 0 1 1 5 26010105
+1 0 0 0 0 2 1 5 26020105
+1 0 0 0 0 3 1 5 26030105
+1 0 0 0 0 4 1 5 26040105
+1 0 0 0 0 5 1 5 26050105
+1 0 0 0 0 6 1 5 26060105
+1 0 0 0 0 7 1 5 26070105
+1 0 0 0 0 8 1 5 26080105
+1 0 0 0 0 9 1 5 26090105
+
-"Time = 1.000000
-0.150000 26000104.0000000000000
-0.450000 26010104.0000000000000
-0.750000 26020104.0000000000000
-1.050000 26030104.0000000000000
-1.350000 26040104.0000000000000
-1.650000 26050104.0000000000000
-1.950000 26060104.0000000000000
-2.250000 26070104.0000000000000
-2.550000 26080104.0000000000000
-2.850000 26090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/tzz.yl b/CarpetAttic/Cart3dTest/test/quadrant/tzz.yl
index c1becf1cf..6267389e0 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/tzz.yl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/tzz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz y (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 26000005
+0 0 0 0 0 0 1 5 26000105
+0 0 0 0 0 0 2 5 26000205
+0 0 0 0 0 0 3 5 26000305
+0 0 0 0 0 0 4 5 26000405
+0 0 0 0 0 0 5 5 26000505
+0 0 0 0 0 0 6 5 26000605
+0 0 0 0 0 0 7 5 26000705
+0 0 0 0 0 0 8 5 26000805
+0 0 0 0 0 0 9 5 26000905
-"Time = 0.000000
--0.150000 26000004.0000000000000
-0.150000 26000104.0000000000000
-0.450000 26000204.0000000000000
-0.750000 26000304.0000000000000
-1.050000 26000404.0000000000000
-1.350000 26000504.0000000000000
-1.650000 26000604.0000000000000
-1.950000 26000704.0000000000000
-2.250000 26000804.0000000000000
-2.550000 26000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 26000105
+1 0 0 0 0 0 1 5 26000105
+1 0 0 0 0 0 2 5 26000205
+1 0 0 0 0 0 3 5 26000305
+1 0 0 0 0 0 4 5 26000405
+1 0 0 0 0 0 5 5 26000505
+1 0 0 0 0 0 6 5 26000605
+1 0 0 0 0 0 7 5 26000705
+1 0 0 0 0 0 8 5 26000805
+1 0 0 0 0 0 9 5 26000905
+
-"Time = 1.000000
--0.150000 26000104.0000000000000
-0.150000 26000104.0000000000000
-0.450000 26000204.0000000000000
-0.750000 26000304.0000000000000
-1.050000 26000404.0000000000000
-1.350000 26000504.0000000000000
-1.650000 26000604.0000000000000
-1.950000 26000704.0000000000000
-2.250000 26000804.0000000000000
-2.550000 26000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/tzz.zl b/CarpetAttic/Cart3dTest/test/quadrant/tzz.zl
index a7bc8d067..610ec9c66 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/tzz.zl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/tzz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz z (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 26000100
+0 0 0 0 0 0 1 1 26000101
+0 0 0 0 0 0 1 2 26000102
+0 0 0 0 0 0 1 3 26000103
+0 0 0 0 0 0 1 4 26000104
+0 0 0 0 0 0 1 5 26000105
+0 0 0 0 0 0 1 6 26000106
+0 0 0 0 0 0 1 7 26000107
+0 0 0 0 0 0 1 8 26000108
+0 0 0 0 0 0 1 9 26000109
-"Time = 0.000000
--1.350000 26000100.0000000000000
--1.050000 26000101.0000000000000
--0.750000 26000102.0000000000000
--0.450000 26000103.0000000000000
--0.150000 26000104.0000000000000
-0.150000 26000105.0000000000000
-0.450000 26000106.0000000000000
-0.750000 26000107.0000000000000
-1.050000 26000108.0000000000000
-1.350000 26000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 26000100
+1 0 0 0 0 0 1 1 26000101
+1 0 0 0 0 0 1 2 26000102
+1 0 0 0 0 0 1 3 26000103
+1 0 0 0 0 0 1 4 26000104
+1 0 0 0 0 0 1 5 26000105
+1 0 0 0 0 0 1 6 26000106
+1 0 0 0 0 0 1 7 26000107
+1 0 0 0 0 0 1 8 26000108
+1 0 0 0 0 0 1 9 26000109
+
-"Time = 1.000000
--1.350000 26000100.0000000000000
--1.050000 26000101.0000000000000
--0.750000 26000102.0000000000000
--0.450000 26000103.0000000000000
--0.150000 26000104.0000000000000
-0.150000 26000105.0000000000000
-0.450000 26000106.0000000000000
-0.750000 26000107.0000000000000
-1.050000 26000108.0000000000000
-1.350000 26000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/vx.xl b/CarpetAttic/Cart3dTest/test/quadrant/vx.xl
index defe4478d..2fae0a603 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/vx.xl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/vx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx x (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 11000105
+0 0 0 0 0 1 1 5 11010105
+0 0 0 0 0 2 1 5 11020105
+0 0 0 0 0 3 1 5 11030105
+0 0 0 0 0 4 1 5 11040105
+0 0 0 0 0 5 1 5 11050105
+0 0 0 0 0 6 1 5 11060105
+0 0 0 0 0 7 1 5 11070105
+0 0 0 0 0 8 1 5 11080105
+0 0 0 0 0 9 1 5 11090105
-"Time = 0.000000
-0.150000 11000104.0000000000000
-0.450000 11010104.0000000000000
-0.750000 11020104.0000000000000
-1.050000 11030104.0000000000000
-1.350000 11040104.0000000000000
-1.650000 11050104.0000000000000
-1.950000 11060104.0000000000000
-2.250000 11070104.0000000000000
-2.550000 11080104.0000000000000
-2.850000 11090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 11000105
+1 0 0 0 0 1 1 5 11010105
+1 0 0 0 0 2 1 5 11020105
+1 0 0 0 0 3 1 5 11030105
+1 0 0 0 0 4 1 5 11040105
+1 0 0 0 0 5 1 5 11050105
+1 0 0 0 0 6 1 5 11060105
+1 0 0 0 0 7 1 5 11070105
+1 0 0 0 0 8 1 5 11080105
+1 0 0 0 0 9 1 5 11090105
+
-"Time = 1.000000
-0.150000 11000104.0000000000000
-0.450000 11010104.0000000000000
-0.750000 11020104.0000000000000
-1.050000 11030104.0000000000000
-1.350000 11040104.0000000000000
-1.650000 11050104.0000000000000
-1.950000 11060104.0000000000000
-2.250000 11070104.0000000000000
-2.550000 11080104.0000000000000
-2.850000 11090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/vx.yl b/CarpetAttic/Cart3dTest/test/quadrant/vx.yl
index f0a645a54..0e0aea3f5 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/vx.yl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/vx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx y (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 11000005
+0 0 0 0 0 0 1 5 11000105
+0 0 0 0 0 0 2 5 11000205
+0 0 0 0 0 0 3 5 11000305
+0 0 0 0 0 0 4 5 11000405
+0 0 0 0 0 0 5 5 11000505
+0 0 0 0 0 0 6 5 11000605
+0 0 0 0 0 0 7 5 11000705
+0 0 0 0 0 0 8 5 11000805
+0 0 0 0 0 0 9 5 11000905
-"Time = 0.000000
--0.150000 11000004.0000000000000
-0.150000 11000104.0000000000000
-0.450000 11000204.0000000000000
-0.750000 11000304.0000000000000
-1.050000 11000404.0000000000000
-1.350000 11000504.0000000000000
-1.650000 11000604.0000000000000
-1.950000 11000704.0000000000000
-2.250000 11000804.0000000000000
-2.550000 11000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 11000105
+1 0 0 0 0 0 1 5 11000105
+1 0 0 0 0 0 2 5 11000205
+1 0 0 0 0 0 3 5 11000305
+1 0 0 0 0 0 4 5 11000405
+1 0 0 0 0 0 5 5 11000505
+1 0 0 0 0 0 6 5 11000605
+1 0 0 0 0 0 7 5 11000705
+1 0 0 0 0 0 8 5 11000805
+1 0 0 0 0 0 9 5 11000905
+
-"Time = 1.000000
--0.150000 11000104.0000000000000
-0.150000 11000104.0000000000000
-0.450000 11000204.0000000000000
-0.750000 11000304.0000000000000
-1.050000 11000404.0000000000000
-1.350000 11000504.0000000000000
-1.650000 11000604.0000000000000
-1.950000 11000704.0000000000000
-2.250000 11000804.0000000000000
-2.550000 11000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/vx.zl b/CarpetAttic/Cart3dTest/test/quadrant/vx.zl
index 64b9851ab..51e26621d 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/vx.zl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/vx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx z (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 11000100
+0 0 0 0 0 0 1 1 11000101
+0 0 0 0 0 0 1 2 11000102
+0 0 0 0 0 0 1 3 11000103
+0 0 0 0 0 0 1 4 11000104
+0 0 0 0 0 0 1 5 11000105
+0 0 0 0 0 0 1 6 11000106
+0 0 0 0 0 0 1 7 11000107
+0 0 0 0 0 0 1 8 11000108
+0 0 0 0 0 0 1 9 11000109
-"Time = 0.000000
--1.350000 11000100.0000000000000
--1.050000 11000101.0000000000000
--0.750000 11000102.0000000000000
--0.450000 11000103.0000000000000
--0.150000 11000104.0000000000000
-0.150000 11000105.0000000000000
-0.450000 11000106.0000000000000
-0.750000 11000107.0000000000000
-1.050000 11000108.0000000000000
-1.350000 11000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 11000100
+1 0 0 0 0 0 1 1 11000101
+1 0 0 0 0 0 1 2 11000102
+1 0 0 0 0 0 1 3 11000103
+1 0 0 0 0 0 1 4 11000104
+1 0 0 0 0 0 1 5 11000105
+1 0 0 0 0 0 1 6 11000106
+1 0 0 0 0 0 1 7 11000107
+1 0 0 0 0 0 1 8 11000108
+1 0 0 0 0 0 1 9 11000109
+
-"Time = 1.000000
--1.350000 11000100.0000000000000
--1.050000 11000101.0000000000000
--0.750000 11000102.0000000000000
--0.450000 11000103.0000000000000
--0.150000 11000104.0000000000000
-0.150000 11000105.0000000000000
-0.450000 11000106.0000000000000
-0.750000 11000107.0000000000000
-1.050000 11000108.0000000000000
-1.350000 11000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/vy.xl b/CarpetAttic/Cart3dTest/test/quadrant/vy.xl
index 335fa21a1..abba49be6 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/vy.xl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/vy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy x (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 12000105
+0 0 0 0 0 1 1 5 12010105
+0 0 0 0 0 2 1 5 12020105
+0 0 0 0 0 3 1 5 12030105
+0 0 0 0 0 4 1 5 12040105
+0 0 0 0 0 5 1 5 12050105
+0 0 0 0 0 6 1 5 12060105
+0 0 0 0 0 7 1 5 12070105
+0 0 0 0 0 8 1 5 12080105
+0 0 0 0 0 9 1 5 12090105
-"Time = 0.000000
-0.150000 12000104.0000000000000
-0.450000 12010104.0000000000000
-0.750000 12020104.0000000000000
-1.050000 12030104.0000000000000
-1.350000 12040104.0000000000000
-1.650000 12050104.0000000000000
-1.950000 12060104.0000000000000
-2.250000 12070104.0000000000000
-2.550000 12080104.0000000000000
-2.850000 12090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 12000105
+1 0 0 0 0 1 1 5 12010105
+1 0 0 0 0 2 1 5 12020105
+1 0 0 0 0 3 1 5 12030105
+1 0 0 0 0 4 1 5 12040105
+1 0 0 0 0 5 1 5 12050105
+1 0 0 0 0 6 1 5 12060105
+1 0 0 0 0 7 1 5 12070105
+1 0 0 0 0 8 1 5 12080105
+1 0 0 0 0 9 1 5 12090105
+
-"Time = 1.000000
-0.150000 12000104.0000000000000
-0.450000 12010104.0000000000000
-0.750000 12020104.0000000000000
-1.050000 12030104.0000000000000
-1.350000 12040104.0000000000000
-1.650000 12050104.0000000000000
-1.950000 12060104.0000000000000
-2.250000 12070104.0000000000000
-2.550000 12080104.0000000000000
-2.850000 12090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/vy.yl b/CarpetAttic/Cart3dTest/test/quadrant/vy.yl
index 245f9e07b..76d6ddeb2 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/vy.yl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/vy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy y (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 12000005
+0 0 0 0 0 0 1 5 12000105
+0 0 0 0 0 0 2 5 12000205
+0 0 0 0 0 0 3 5 12000305
+0 0 0 0 0 0 4 5 12000405
+0 0 0 0 0 0 5 5 12000505
+0 0 0 0 0 0 6 5 12000605
+0 0 0 0 0 0 7 5 12000705
+0 0 0 0 0 0 8 5 12000805
+0 0 0 0 0 0 9 5 12000905
-"Time = 0.000000
--0.150000 12000004.0000000000000
-0.150000 12000104.0000000000000
-0.450000 12000204.0000000000000
-0.750000 12000304.0000000000000
-1.050000 12000404.0000000000000
-1.350000 12000504.0000000000000
-1.650000 12000604.0000000000000
-1.950000 12000704.0000000000000
-2.250000 12000804.0000000000000
-2.550000 12000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 -12000105
+1 0 0 0 0 0 1 5 12000105
+1 0 0 0 0 0 2 5 12000205
+1 0 0 0 0 0 3 5 12000305
+1 0 0 0 0 0 4 5 12000405
+1 0 0 0 0 0 5 5 12000505
+1 0 0 0 0 0 6 5 12000605
+1 0 0 0 0 0 7 5 12000705
+1 0 0 0 0 0 8 5 12000805
+1 0 0 0 0 0 9 5 12000905
+
-"Time = 1.000000
--0.150000 -12000104.0000000000000
-0.150000 12000104.0000000000000
-0.450000 12000204.0000000000000
-0.750000 12000304.0000000000000
-1.050000 12000404.0000000000000
-1.350000 12000504.0000000000000
-1.650000 12000604.0000000000000
-1.950000 12000704.0000000000000
-2.250000 12000804.0000000000000
-2.550000 12000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/vy.zl b/CarpetAttic/Cart3dTest/test/quadrant/vy.zl
index 14028a501..1c5c80a95 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/vy.zl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/vy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy z (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 12000100
+0 0 0 0 0 0 1 1 12000101
+0 0 0 0 0 0 1 2 12000102
+0 0 0 0 0 0 1 3 12000103
+0 0 0 0 0 0 1 4 12000104
+0 0 0 0 0 0 1 5 12000105
+0 0 0 0 0 0 1 6 12000106
+0 0 0 0 0 0 1 7 12000107
+0 0 0 0 0 0 1 8 12000108
+0 0 0 0 0 0 1 9 12000109
-"Time = 0.000000
--1.350000 12000100.0000000000000
--1.050000 12000101.0000000000000
--0.750000 12000102.0000000000000
--0.450000 12000103.0000000000000
--0.150000 12000104.0000000000000
-0.150000 12000105.0000000000000
-0.450000 12000106.0000000000000
-0.750000 12000107.0000000000000
-1.050000 12000108.0000000000000
-1.350000 12000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 12000100
+1 0 0 0 0 0 1 1 12000101
+1 0 0 0 0 0 1 2 12000102
+1 0 0 0 0 0 1 3 12000103
+1 0 0 0 0 0 1 4 12000104
+1 0 0 0 0 0 1 5 12000105
+1 0 0 0 0 0 1 6 12000106
+1 0 0 0 0 0 1 7 12000107
+1 0 0 0 0 0 1 8 12000108
+1 0 0 0 0 0 1 9 12000109
+
-"Time = 1.000000
--1.350000 12000100.0000000000000
--1.050000 12000101.0000000000000
--0.750000 12000102.0000000000000
--0.450000 12000103.0000000000000
--0.150000 12000104.0000000000000
-0.150000 12000105.0000000000000
-0.450000 12000106.0000000000000
-0.750000 12000107.0000000000000
-1.050000 12000108.0000000000000
-1.350000 12000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/vz.xl b/CarpetAttic/Cart3dTest/test/quadrant/vz.xl
index 9281f6788..a01f81b61 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/vz.xl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/vz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz x (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 13000105
+0 0 0 0 0 1 1 5 13010105
+0 0 0 0 0 2 1 5 13020105
+0 0 0 0 0 3 1 5 13030105
+0 0 0 0 0 4 1 5 13040105
+0 0 0 0 0 5 1 5 13050105
+0 0 0 0 0 6 1 5 13060105
+0 0 0 0 0 7 1 5 13070105
+0 0 0 0 0 8 1 5 13080105
+0 0 0 0 0 9 1 5 13090105
-"Time = 0.000000
-0.150000 13000104.0000000000000
-0.450000 13010104.0000000000000
-0.750000 13020104.0000000000000
-1.050000 13030104.0000000000000
-1.350000 13040104.0000000000000
-1.650000 13050104.0000000000000
-1.950000 13060104.0000000000000
-2.250000 13070104.0000000000000
-2.550000 13080104.0000000000000
-2.850000 13090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 13000105
+1 0 0 0 0 1 1 5 13010105
+1 0 0 0 0 2 1 5 13020105
+1 0 0 0 0 3 1 5 13030105
+1 0 0 0 0 4 1 5 13040105
+1 0 0 0 0 5 1 5 13050105
+1 0 0 0 0 6 1 5 13060105
+1 0 0 0 0 7 1 5 13070105
+1 0 0 0 0 8 1 5 13080105
+1 0 0 0 0 9 1 5 13090105
+
-"Time = 1.000000
-0.150000 13000104.0000000000000
-0.450000 13010104.0000000000000
-0.750000 13020104.0000000000000
-1.050000 13030104.0000000000000
-1.350000 13040104.0000000000000
-1.650000 13050104.0000000000000
-1.950000 13060104.0000000000000
-2.250000 13070104.0000000000000
-2.550000 13080104.0000000000000
-2.850000 13090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/vz.yl b/CarpetAttic/Cart3dTest/test/quadrant/vz.yl
index 426034e86..a53c4050b 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/vz.yl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/vz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz y (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 13000005
+0 0 0 0 0 0 1 5 13000105
+0 0 0 0 0 0 2 5 13000205
+0 0 0 0 0 0 3 5 13000305
+0 0 0 0 0 0 4 5 13000405
+0 0 0 0 0 0 5 5 13000505
+0 0 0 0 0 0 6 5 13000605
+0 0 0 0 0 0 7 5 13000705
+0 0 0 0 0 0 8 5 13000805
+0 0 0 0 0 0 9 5 13000905
-"Time = 0.000000
--0.150000 13000004.0000000000000
-0.150000 13000104.0000000000000
-0.450000 13000204.0000000000000
-0.750000 13000304.0000000000000
-1.050000 13000404.0000000000000
-1.350000 13000504.0000000000000
-1.650000 13000604.0000000000000
-1.950000 13000704.0000000000000
-2.250000 13000804.0000000000000
-2.550000 13000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 13000105
+1 0 0 0 0 0 1 5 13000105
+1 0 0 0 0 0 2 5 13000205
+1 0 0 0 0 0 3 5 13000305
+1 0 0 0 0 0 4 5 13000405
+1 0 0 0 0 0 5 5 13000505
+1 0 0 0 0 0 6 5 13000605
+1 0 0 0 0 0 7 5 13000705
+1 0 0 0 0 0 8 5 13000805
+1 0 0 0 0 0 9 5 13000905
+
-"Time = 1.000000
--0.150000 13000104.0000000000000
-0.150000 13000104.0000000000000
-0.450000 13000204.0000000000000
-0.750000 13000304.0000000000000
-1.050000 13000404.0000000000000
-1.350000 13000504.0000000000000
-1.650000 13000604.0000000000000
-1.950000 13000704.0000000000000
-2.250000 13000804.0000000000000
-2.550000 13000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/quadrant/vz.zl b/CarpetAttic/Cart3dTest/test/quadrant/vz.zl
index 49a900d10..54c6bf1c5 100644
--- a/CarpetAttic/Cart3dTest/test/quadrant/vz.zl
+++ b/CarpetAttic/Cart3dTest/test/quadrant/vz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz z (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 0 13000100
+0 0 0 0 0 0 1 1 13000101
+0 0 0 0 0 0 1 2 13000102
+0 0 0 0 0 0 1 3 13000103
+0 0 0 0 0 0 1 4 13000104
+0 0 0 0 0 0 1 5 13000105
+0 0 0 0 0 0 1 6 13000106
+0 0 0 0 0 0 1 7 13000107
+0 0 0 0 0 0 1 8 13000108
+0 0 0 0 0 0 1 9 13000109
-"Time = 0.000000
--1.350000 13000100.0000000000000
--1.050000 13000101.0000000000000
--0.750000 13000102.0000000000000
--0.450000 13000103.0000000000000
--0.150000 13000104.0000000000000
-0.150000 13000105.0000000000000
-0.450000 13000106.0000000000000
-0.750000 13000107.0000000000000
-1.050000 13000108.0000000000000
-1.350000 13000109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 0 13000100
+1 0 0 0 0 0 1 1 13000101
+1 0 0 0 0 0 1 2 13000102
+1 0 0 0 0 0 1 3 13000103
+1 0 0 0 0 0 1 4 13000104
+1 0 0 0 0 0 1 5 13000105
+1 0 0 0 0 0 1 6 13000106
+1 0 0 0 0 0 1 7 13000107
+1 0 0 0 0 0 1 8 13000108
+1 0 0 0 0 0 1 9 13000109
+
-"Time = 1.000000
--1.350000 13000100.0000000000000
--1.050000 13000101.0000000000000
--0.750000 13000102.0000000000000
--0.450000 13000103.0000000000000
--0.150000 13000104.0000000000000
-0.150000 13000105.0000000000000
-0.450000 13000106.0000000000000
-0.750000 13000107.0000000000000
-1.050000 13000108.0000000000000
-1.350000 13000109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/ax.xl b/CarpetAttic/Cart3dTest/test/symmetric-x/ax.xl
index 935209b95..a6dd976ff 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/ax.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/ax.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax x (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 31000505
+0 0 0 0 0 1 5 5 31010505
+0 0 0 0 0 2 5 5 31020505
+0 0 0 0 0 3 5 5 31030505
+0 0 0 0 0 4 5 5 31040505
+0 0 0 0 0 5 5 5 31050505
+0 0 0 0 0 6 5 5 31060505
+0 0 0 0 0 7 5 5 31070505
+0 0 0 0 0 8 5 5 31080505
+0 0 0 0 0 9 5 5 31090505
-"Time = 0.000000
-0.150000 31000404.0000000000000
-0.450000 31010404.0000000000000
-0.750000 31020404.0000000000000
-1.050000 31030404.0000000000000
-1.350000 31040404.0000000000000
-1.650000 31050404.0000000000000
-1.950000 31060404.0000000000000
-2.250000 31070404.0000000000000
-2.550000 31080404.0000000000000
-2.850000 31090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 31000505
+1 0 0 0 0 1 5 5 31010505
+1 0 0 0 0 2 5 5 31020505
+1 0 0 0 0 3 5 5 31030505
+1 0 0 0 0 4 5 5 31040505
+1 0 0 0 0 5 5 5 31050505
+1 0 0 0 0 6 5 5 31060505
+1 0 0 0 0 7 5 5 31070505
+1 0 0 0 0 8 5 5 31080505
+1 0 0 0 0 9 5 5 31090505
+
-"Time = 1.000000
-0.150000 31000404.0000000000000
-0.450000 31010404.0000000000000
-0.750000 31020404.0000000000000
-1.050000 31030404.0000000000000
-1.350000 31040404.0000000000000
-1.650000 31050404.0000000000000
-1.950000 31060404.0000000000000
-2.250000 31070404.0000000000000
-2.550000 31080404.0000000000000
-2.850000 31090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/ax.yl b/CarpetAttic/Cart3dTest/test/symmetric-x/ax.yl
index d4b36e9a1..8e3da883a 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/ax.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/ax.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax y (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 31000005
+0 0 0 0 0 0 1 5 31000105
+0 0 0 0 0 0 2 5 31000205
+0 0 0 0 0 0 3 5 31000305
+0 0 0 0 0 0 4 5 31000405
+0 0 0 0 0 0 5 5 31000505
+0 0 0 0 0 0 6 5 31000605
+0 0 0 0 0 0 7 5 31000705
+0 0 0 0 0 0 8 5 31000805
+0 0 0 0 0 0 9 5 31000905
-"Time = 0.000000
--1.350000 31000004.0000000000000
--1.050000 31000104.0000000000000
--0.750000 31000204.0000000000000
--0.450000 31000304.0000000000000
--0.150000 31000404.0000000000000
-0.150000 31000504.0000000000000
-0.450000 31000604.0000000000000
-0.750000 31000704.0000000000000
-1.050000 31000804.0000000000000
-1.350000 31000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 31000005
+1 0 0 0 0 0 1 5 31000105
+1 0 0 0 0 0 2 5 31000205
+1 0 0 0 0 0 3 5 31000305
+1 0 0 0 0 0 4 5 31000405
+1 0 0 0 0 0 5 5 31000505
+1 0 0 0 0 0 6 5 31000605
+1 0 0 0 0 0 7 5 31000705
+1 0 0 0 0 0 8 5 31000805
+1 0 0 0 0 0 9 5 31000905
+
-"Time = 1.000000
--1.350000 31000004.0000000000000
--1.050000 31000104.0000000000000
--0.750000 31000204.0000000000000
--0.450000 31000304.0000000000000
--0.150000 31000404.0000000000000
-0.150000 31000504.0000000000000
-0.450000 31000604.0000000000000
-0.750000 31000704.0000000000000
-1.050000 31000804.0000000000000
-1.350000 31000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/ax.zl b/CarpetAttic/Cart3dTest/test/symmetric-x/ax.zl
index 7fc2f515b..d2a0ee254 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/ax.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/ax.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax z (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 31000500
+0 0 0 0 0 0 5 1 31000501
+0 0 0 0 0 0 5 2 31000502
+0 0 0 0 0 0 5 3 31000503
+0 0 0 0 0 0 5 4 31000504
+0 0 0 0 0 0 5 5 31000505
+0 0 0 0 0 0 5 6 31000506
+0 0 0 0 0 0 5 7 31000507
+0 0 0 0 0 0 5 8 31000508
+0 0 0 0 0 0 5 9 31000509
-"Time = 0.000000
--1.350000 31000400.0000000000000
--1.050000 31000401.0000000000000
--0.750000 31000402.0000000000000
--0.450000 31000403.0000000000000
--0.150000 31000404.0000000000000
-0.150000 31000405.0000000000000
-0.450000 31000406.0000000000000
-0.750000 31000407.0000000000000
-1.050000 31000408.0000000000000
-1.350000 31000409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 31000500
+1 0 0 0 0 0 5 1 31000501
+1 0 0 0 0 0 5 2 31000502
+1 0 0 0 0 0 5 3 31000503
+1 0 0 0 0 0 5 4 31000504
+1 0 0 0 0 0 5 5 31000505
+1 0 0 0 0 0 5 6 31000506
+1 0 0 0 0 0 5 7 31000507
+1 0 0 0 0 0 5 8 31000508
+1 0 0 0 0 0 5 9 31000509
+
-"Time = 1.000000
--1.350000 31000400.0000000000000
--1.050000 31000401.0000000000000
--0.750000 31000402.0000000000000
--0.450000 31000403.0000000000000
--0.150000 31000404.0000000000000
-0.150000 31000405.0000000000000
-0.450000 31000406.0000000000000
-0.750000 31000407.0000000000000
-1.050000 31000408.0000000000000
-1.350000 31000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/ay.xl b/CarpetAttic/Cart3dTest/test/symmetric-x/ay.xl
index dc0e7b87a..d98eb4ea0 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/ay.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/ay.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay x (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 32000505
+0 0 0 0 0 1 5 5 32010505
+0 0 0 0 0 2 5 5 32020505
+0 0 0 0 0 3 5 5 32030505
+0 0 0 0 0 4 5 5 32040505
+0 0 0 0 0 5 5 5 32050505
+0 0 0 0 0 6 5 5 32060505
+0 0 0 0 0 7 5 5 32070505
+0 0 0 0 0 8 5 5 32080505
+0 0 0 0 0 9 5 5 32090505
-"Time = 0.000000
-0.150000 32000404.0000000000000
-0.450000 32010404.0000000000000
-0.750000 32020404.0000000000000
-1.050000 32030404.0000000000000
-1.350000 32040404.0000000000000
-1.650000 32050404.0000000000000
-1.950000 32060404.0000000000000
-2.250000 32070404.0000000000000
-2.550000 32080404.0000000000000
-2.850000 32090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 32000505
+1 0 0 0 0 1 5 5 32010505
+1 0 0 0 0 2 5 5 32020505
+1 0 0 0 0 3 5 5 32030505
+1 0 0 0 0 4 5 5 32040505
+1 0 0 0 0 5 5 5 32050505
+1 0 0 0 0 6 5 5 32060505
+1 0 0 0 0 7 5 5 32070505
+1 0 0 0 0 8 5 5 32080505
+1 0 0 0 0 9 5 5 32090505
+
-"Time = 1.000000
-0.150000 32000404.0000000000000
-0.450000 32010404.0000000000000
-0.750000 32020404.0000000000000
-1.050000 32030404.0000000000000
-1.350000 32040404.0000000000000
-1.650000 32050404.0000000000000
-1.950000 32060404.0000000000000
-2.250000 32070404.0000000000000
-2.550000 32080404.0000000000000
-2.850000 32090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/ay.yl b/CarpetAttic/Cart3dTest/test/symmetric-x/ay.yl
index 8c9a24bb7..f02eed7ea 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/ay.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/ay.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay y (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 32000005
+0 0 0 0 0 0 1 5 32000105
+0 0 0 0 0 0 2 5 32000205
+0 0 0 0 0 0 3 5 32000305
+0 0 0 0 0 0 4 5 32000405
+0 0 0 0 0 0 5 5 32000505
+0 0 0 0 0 0 6 5 32000605
+0 0 0 0 0 0 7 5 32000705
+0 0 0 0 0 0 8 5 32000805
+0 0 0 0 0 0 9 5 32000905
-"Time = 0.000000
--1.350000 32000004.0000000000000
--1.050000 32000104.0000000000000
--0.750000 32000204.0000000000000
--0.450000 32000304.0000000000000
--0.150000 32000404.0000000000000
-0.150000 32000504.0000000000000
-0.450000 32000604.0000000000000
-0.750000 32000704.0000000000000
-1.050000 32000804.0000000000000
-1.350000 32000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 32000005
+1 0 0 0 0 0 1 5 32000105
+1 0 0 0 0 0 2 5 32000205
+1 0 0 0 0 0 3 5 32000305
+1 0 0 0 0 0 4 5 32000405
+1 0 0 0 0 0 5 5 32000505
+1 0 0 0 0 0 6 5 32000605
+1 0 0 0 0 0 7 5 32000705
+1 0 0 0 0 0 8 5 32000805
+1 0 0 0 0 0 9 5 32000905
+
-"Time = 1.000000
--1.350000 32000004.0000000000000
--1.050000 32000104.0000000000000
--0.750000 32000204.0000000000000
--0.450000 32000304.0000000000000
--0.150000 32000404.0000000000000
-0.150000 32000504.0000000000000
-0.450000 32000604.0000000000000
-0.750000 32000704.0000000000000
-1.050000 32000804.0000000000000
-1.350000 32000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/ay.zl b/CarpetAttic/Cart3dTest/test/symmetric-x/ay.zl
index c70e02bed..862e9c262 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/ay.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/ay.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay z (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 32000500
+0 0 0 0 0 0 5 1 32000501
+0 0 0 0 0 0 5 2 32000502
+0 0 0 0 0 0 5 3 32000503
+0 0 0 0 0 0 5 4 32000504
+0 0 0 0 0 0 5 5 32000505
+0 0 0 0 0 0 5 6 32000506
+0 0 0 0 0 0 5 7 32000507
+0 0 0 0 0 0 5 8 32000508
+0 0 0 0 0 0 5 9 32000509
-"Time = 0.000000
--1.350000 32000400.0000000000000
--1.050000 32000401.0000000000000
--0.750000 32000402.0000000000000
--0.450000 32000403.0000000000000
--0.150000 32000404.0000000000000
-0.150000 32000405.0000000000000
-0.450000 32000406.0000000000000
-0.750000 32000407.0000000000000
-1.050000 32000408.0000000000000
-1.350000 32000409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 32000500
+1 0 0 0 0 0 5 1 32000501
+1 0 0 0 0 0 5 2 32000502
+1 0 0 0 0 0 5 3 32000503
+1 0 0 0 0 0 5 4 32000504
+1 0 0 0 0 0 5 5 32000505
+1 0 0 0 0 0 5 6 32000506
+1 0 0 0 0 0 5 7 32000507
+1 0 0 0 0 0 5 8 32000508
+1 0 0 0 0 0 5 9 32000509
+
-"Time = 1.000000
--1.350000 32000400.0000000000000
--1.050000 32000401.0000000000000
--0.750000 32000402.0000000000000
--0.450000 32000403.0000000000000
--0.150000 32000404.0000000000000
-0.150000 32000405.0000000000000
-0.450000 32000406.0000000000000
-0.750000 32000407.0000000000000
-1.050000 32000408.0000000000000
-1.350000 32000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/az.xl b/CarpetAttic/Cart3dTest/test/symmetric-x/az.xl
index f1e681009..9c2733464 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/az.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/az.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::az x (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 33000505
+0 0 0 0 0 1 5 5 33010505
+0 0 0 0 0 2 5 5 33020505
+0 0 0 0 0 3 5 5 33030505
+0 0 0 0 0 4 5 5 33040505
+0 0 0 0 0 5 5 5 33050505
+0 0 0 0 0 6 5 5 33060505
+0 0 0 0 0 7 5 5 33070505
+0 0 0 0 0 8 5 5 33080505
+0 0 0 0 0 9 5 5 33090505
-"Time = 0.000000
-0.150000 33000404.0000000000000
-0.450000 33010404.0000000000000
-0.750000 33020404.0000000000000
-1.050000 33030404.0000000000000
-1.350000 33040404.0000000000000
-1.650000 33050404.0000000000000
-1.950000 33060404.0000000000000
-2.250000 33070404.0000000000000
-2.550000 33080404.0000000000000
-2.850000 33090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 33000505
+1 0 0 0 0 1 5 5 33010505
+1 0 0 0 0 2 5 5 33020505
+1 0 0 0 0 3 5 5 33030505
+1 0 0 0 0 4 5 5 33040505
+1 0 0 0 0 5 5 5 33050505
+1 0 0 0 0 6 5 5 33060505
+1 0 0 0 0 7 5 5 33070505
+1 0 0 0 0 8 5 5 33080505
+1 0 0 0 0 9 5 5 33090505
+
-"Time = 1.000000
-0.150000 33000404.0000000000000
-0.450000 33010404.0000000000000
-0.750000 33020404.0000000000000
-1.050000 33030404.0000000000000
-1.350000 33040404.0000000000000
-1.650000 33050404.0000000000000
-1.950000 33060404.0000000000000
-2.250000 33070404.0000000000000
-2.550000 33080404.0000000000000
-2.850000 33090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/az.yl b/CarpetAttic/Cart3dTest/test/symmetric-x/az.yl
index ea017cc08..3e2a89501 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/az.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/az.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::az y (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 33000005
+0 0 0 0 0 0 1 5 33000105
+0 0 0 0 0 0 2 5 33000205
+0 0 0 0 0 0 3 5 33000305
+0 0 0 0 0 0 4 5 33000405
+0 0 0 0 0 0 5 5 33000505
+0 0 0 0 0 0 6 5 33000605
+0 0 0 0 0 0 7 5 33000705
+0 0 0 0 0 0 8 5 33000805
+0 0 0 0 0 0 9 5 33000905
-"Time = 0.000000
--1.350000 33000004.0000000000000
--1.050000 33000104.0000000000000
--0.750000 33000204.0000000000000
--0.450000 33000304.0000000000000
--0.150000 33000404.0000000000000
-0.150000 33000504.0000000000000
-0.450000 33000604.0000000000000
-0.750000 33000704.0000000000000
-1.050000 33000804.0000000000000
-1.350000 33000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 33000005
+1 0 0 0 0 0 1 5 33000105
+1 0 0 0 0 0 2 5 33000205
+1 0 0 0 0 0 3 5 33000305
+1 0 0 0 0 0 4 5 33000405
+1 0 0 0 0 0 5 5 33000505
+1 0 0 0 0 0 6 5 33000605
+1 0 0 0 0 0 7 5 33000705
+1 0 0 0 0 0 8 5 33000805
+1 0 0 0 0 0 9 5 33000905
+
-"Time = 1.000000
--1.350000 33000004.0000000000000
--1.050000 33000104.0000000000000
--0.750000 33000204.0000000000000
--0.450000 33000304.0000000000000
--0.150000 33000404.0000000000000
-0.150000 33000504.0000000000000
-0.450000 33000604.0000000000000
-0.750000 33000704.0000000000000
-1.050000 33000804.0000000000000
-1.350000 33000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/az.zl b/CarpetAttic/Cart3dTest/test/symmetric-x/az.zl
index fea30b88f..43e1372ef 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/az.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/az.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::az z (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 33000500
+0 0 0 0 0 0 5 1 33000501
+0 0 0 0 0 0 5 2 33000502
+0 0 0 0 0 0 5 3 33000503
+0 0 0 0 0 0 5 4 33000504
+0 0 0 0 0 0 5 5 33000505
+0 0 0 0 0 0 5 6 33000506
+0 0 0 0 0 0 5 7 33000507
+0 0 0 0 0 0 5 8 33000508
+0 0 0 0 0 0 5 9 33000509
-"Time = 0.000000
--1.350000 33000400.0000000000000
--1.050000 33000401.0000000000000
--0.750000 33000402.0000000000000
--0.450000 33000403.0000000000000
--0.150000 33000404.0000000000000
-0.150000 33000405.0000000000000
-0.450000 33000406.0000000000000
-0.750000 33000407.0000000000000
-1.050000 33000408.0000000000000
-1.350000 33000409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 33000500
+1 0 0 0 0 0 5 1 33000501
+1 0 0 0 0 0 5 2 33000502
+1 0 0 0 0 0 5 3 33000503
+1 0 0 0 0 0 5 4 33000504
+1 0 0 0 0 0 5 5 33000505
+1 0 0 0 0 0 5 6 33000506
+1 0 0 0 0 0 5 7 33000507
+1 0 0 0 0 0 5 8 33000508
+1 0 0 0 0 0 5 9 33000509
+
-"Time = 1.000000
--1.350000 33000400.0000000000000
--1.050000 33000401.0000000000000
--0.750000 33000402.0000000000000
--0.450000 33000403.0000000000000
--0.150000 33000404.0000000000000
-0.150000 33000405.0000000000000
-0.450000 33000406.0000000000000
-0.750000 33000407.0000000000000
-1.050000 33000408.0000000000000
-1.350000 33000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_x.xl b/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_x.xl
index 50fd6a322..74ad429b4 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_x.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_x.xl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x x (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 0.15
+0 0 0 0 0 1 5 5 0.45
+0 0 0 0 0 2 5 5 0.75
+0 0 0 0 0 3 5 5 1.05
+0 0 0 0 0 4 5 5 1.35
+0 0 0 0 0 5 5 5 1.65
+0 0 0 0 0 6 5 5 1.95
+0 0 0 0 0 7 5 5 2.25
+0 0 0 0 0 8 5 5 2.55
+0 0 0 0 0 9 5 5 2.85
-"Time = 0.000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
-2.550000 2.5500000000000
-2.850000 2.8500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 0.15
+1 0 0 0 0 1 5 5 0.45
+1 0 0 0 0 2 5 5 0.75
+1 0 0 0 0 3 5 5 1.05
+1 0 0 0 0 4 5 5 1.35
+1 0 0 0 0 5 5 5 1.65
+1 0 0 0 0 6 5 5 1.95
+1 0 0 0 0 7 5 5 2.25
+1 0 0 0 0 8 5 5 2.55
+1 0 0 0 0 9 5 5 2.85
+
-"Time = 1.000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
-2.550000 2.5500000000000
-2.850000 2.8500000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_x.yl b/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_x.yl
index 9ec3cd5db..7a88526ed 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_x.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_x.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x y (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 0.15
+0 0 0 0 0 0 1 5 0.15
+0 0 0 0 0 0 2 5 0.15
+0 0 0 0 0 0 3 5 0.15
+0 0 0 0 0 0 4 5 0.15
+0 0 0 0 0 0 5 5 0.15
+0 0 0 0 0 0 6 5 0.15
+0 0 0 0 0 0 7 5 0.15
+0 0 0 0 0 0 8 5 0.15
+0 0 0 0 0 0 9 5 0.15
-"Time = 0.000000
--1.350000 0.1500000000000
--1.050000 0.1500000000000
--0.750000 0.1500000000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 0.15
+1 0 0 0 0 0 1 5 0.15
+1 0 0 0 0 0 2 5 0.15
+1 0 0 0 0 0 3 5 0.15
+1 0 0 0 0 0 4 5 0.15
+1 0 0 0 0 0 5 5 0.15
+1 0 0 0 0 0 6 5 0.15
+1 0 0 0 0 0 7 5 0.15
+1 0 0 0 0 0 8 5 0.15
+1 0 0 0 0 0 9 5 0.15
+
-"Time = 1.000000
--1.350000 0.1500000000000
--1.050000 0.1500000000000
--0.750000 0.1500000000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_x.zl b/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_x.zl
index 9ec3cd5db..bff3dd14d 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_x.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_x.zl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x z (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 0.15
+0 0 0 0 0 0 5 1 0.15
+0 0 0 0 0 0 5 2 0.15
+0 0 0 0 0 0 5 3 0.15
+0 0 0 0 0 0 5 4 0.15
+0 0 0 0 0 0 5 5 0.15
+0 0 0 0 0 0 5 6 0.15
+0 0 0 0 0 0 5 7 0.15
+0 0 0 0 0 0 5 8 0.15
+0 0 0 0 0 0 5 9 0.15
-"Time = 0.000000
--1.350000 0.1500000000000
--1.050000 0.1500000000000
--0.750000 0.1500000000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 0.15
+1 0 0 0 0 0 5 1 0.15
+1 0 0 0 0 0 5 2 0.15
+1 0 0 0 0 0 5 3 0.15
+1 0 0 0 0 0 5 4 0.15
+1 0 0 0 0 0 5 5 0.15
+1 0 0 0 0 0 5 6 0.15
+1 0 0 0 0 0 5 7 0.15
+1 0 0 0 0 0 5 8 0.15
+1 0 0 0 0 0 5 9 0.15
+
-"Time = 1.000000
--1.350000 0.1500000000000
--1.050000 0.1500000000000
--0.750000 0.1500000000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_y.xl b/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_y.xl
index f1d268a16..8ee8190c4 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_y.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_y.xl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y x (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 0.15
+0 0 0 0 0 1 5 5 0.15
+0 0 0 0 0 2 5 5 0.15
+0 0 0 0 0 3 5 5 0.15
+0 0 0 0 0 4 5 5 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 6 5 5 0.15
+0 0 0 0 0 7 5 5 0.15
+0 0 0 0 0 8 5 5 0.15
+0 0 0 0 0 9 5 5 0.15
-"Time = 0.000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
-2.850000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 0.15
+1 0 0 0 0 1 5 5 0.15
+1 0 0 0 0 2 5 5 0.15
+1 0 0 0 0 3 5 5 0.15
+1 0 0 0 0 4 5 5 0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 6 5 5 0.15
+1 0 0 0 0 7 5 5 0.15
+1 0 0 0 0 8 5 5 0.15
+1 0 0 0 0 9 5 5 0.15
+
-"Time = 1.000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
-2.850000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_y.yl b/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_y.yl
index 33b36d0af..7b6351b94 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_y.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_y.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y y (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 -1.35
+0 0 0 0 0 0 1 5 -1.05
+0 0 0 0 0 0 2 5 -0.75
+0 0 0 0 0 0 3 5 -0.45
+0 0 0 0 0 0 4 5 -0.15
+0 0 0 0 0 0 5 5 0.15
+0 0 0 0 0 0 6 5 0.45
+0 0 0 0 0 0 7 5 0.75
+0 0 0 0 0 0 8 5 1.05
+0 0 0 0 0 0 9 5 1.35
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 -1.35
+1 0 0 0 0 0 1 5 -1.05
+1 0 0 0 0 0 2 5 -0.75
+1 0 0 0 0 0 3 5 -0.45
+1 0 0 0 0 0 4 5 -0.15
+1 0 0 0 0 0 5 5 0.15
+1 0 0 0 0 0 6 5 0.45
+1 0 0 0 0 0 7 5 0.75
+1 0 0 0 0 0 8 5 1.05
+1 0 0 0 0 0 9 5 1.35
+
-"Time = 1.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_y.zl b/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_y.zl
index 52b13d0ae..b06b80d04 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_y.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_y.zl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y z (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 0.15
+0 0 0 0 0 0 5 1 0.15
+0 0 0 0 0 0 5 2 0.15
+0 0 0 0 0 0 5 3 0.15
+0 0 0 0 0 0 5 4 0.15
+0 0 0 0 0 0 5 5 0.15
+0 0 0 0 0 0 5 6 0.15
+0 0 0 0 0 0 5 7 0.15
+0 0 0 0 0 0 5 8 0.15
+0 0 0 0 0 0 5 9 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 0.15
+1 0 0 0 0 0 5 1 0.15
+1 0 0 0 0 0 5 2 0.15
+1 0 0 0 0 0 5 3 0.15
+1 0 0 0 0 0 5 4 0.15
+1 0 0 0 0 0 5 5 0.15
+1 0 0 0 0 0 5 6 0.15
+1 0 0 0 0 0 5 7 0.15
+1 0 0 0 0 0 5 8 0.15
+1 0 0 0 0 0 5 9 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_z.xl b/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_z.xl
index f1d268a16..400b19f39 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_z.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_z.xl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z x (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 0.15
+0 0 0 0 0 1 5 5 0.15
+0 0 0 0 0 2 5 5 0.15
+0 0 0 0 0 3 5 5 0.15
+0 0 0 0 0 4 5 5 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 6 5 5 0.15
+0 0 0 0 0 7 5 5 0.15
+0 0 0 0 0 8 5 5 0.15
+0 0 0 0 0 9 5 5 0.15
-"Time = 0.000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
-2.850000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 0.15
+1 0 0 0 0 1 5 5 0.15
+1 0 0 0 0 2 5 5 0.15
+1 0 0 0 0 3 5 5 0.15
+1 0 0 0 0 4 5 5 0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 6 5 5 0.15
+1 0 0 0 0 7 5 5 0.15
+1 0 0 0 0 8 5 5 0.15
+1 0 0 0 0 9 5 5 0.15
+
-"Time = 1.000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
-2.850000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_z.yl b/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_z.yl
index 52b13d0ae..48fe0f0c9 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_z.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_z.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z y (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 0.15
+0 0 0 0 0 0 1 5 0.15
+0 0 0 0 0 0 2 5 0.15
+0 0 0 0 0 0 3 5 0.15
+0 0 0 0 0 0 4 5 0.15
+0 0 0 0 0 0 5 5 0.15
+0 0 0 0 0 0 6 5 0.15
+0 0 0 0 0 0 7 5 0.15
+0 0 0 0 0 0 8 5 0.15
+0 0 0 0 0 0 9 5 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 0.15
+1 0 0 0 0 0 1 5 0.15
+1 0 0 0 0 0 2 5 0.15
+1 0 0 0 0 0 3 5 0.15
+1 0 0 0 0 0 4 5 0.15
+1 0 0 0 0 0 5 5 0.15
+1 0 0 0 0 0 6 5 0.15
+1 0 0 0 0 0 7 5 0.15
+1 0 0 0 0 0 8 5 0.15
+1 0 0 0 0 0 9 5 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_z.zl b/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_z.zl
index 33b36d0af..34bc6b859 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_z.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/cart3d_z.zl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z z (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 -1.35
+0 0 0 0 0 0 5 1 -1.05
+0 0 0 0 0 0 5 2 -0.75
+0 0 0 0 0 0 5 3 -0.45
+0 0 0 0 0 0 5 4 -0.15
+0 0 0 0 0 0 5 5 0.15
+0 0 0 0 0 0 5 6 0.45
+0 0 0 0 0 0 5 7 0.75
+0 0 0 0 0 0 5 8 1.05
+0 0 0 0 0 0 5 9 1.35
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 -1.35
+1 0 0 0 0 0 5 1 -1.05
+1 0 0 0 0 0 5 2 -0.75
+1 0 0 0 0 0 5 3 -0.45
+1 0 0 0 0 0 5 4 -0.15
+1 0 0 0 0 0 5 5 0.15
+1 0 0 0 0 0 5 6 0.45
+1 0 0 0 0 0 5 7 0.75
+1 0 0 0 0 0 5 8 1.05
+1 0 0 0 0 0 5 9 1.35
+
-"Time = 1.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/fxx.xl b/CarpetAttic/Cart3dTest/test/symmetric-x/fxx.xl
index 9c603b804..f4e4dc8fd 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/fxx.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/fxx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx x (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 41000505
+0 0 0 0 0 1 5 5 41010505
+0 0 0 0 0 2 5 5 41020505
+0 0 0 0 0 3 5 5 41030505
+0 0 0 0 0 4 5 5 41040505
+0 0 0 0 0 5 5 5 41050505
+0 0 0 0 0 6 5 5 41060505
+0 0 0 0 0 7 5 5 41070505
+0 0 0 0 0 8 5 5 41080505
+0 0 0 0 0 9 5 5 41090505
-"Time = 0.000000
-0.150000 41000404.0000000000000
-0.450000 41010404.0000000000000
-0.750000 41020404.0000000000000
-1.050000 41030404.0000000000000
-1.350000 41040404.0000000000000
-1.650000 41050404.0000000000000
-1.950000 41060404.0000000000000
-2.250000 41070404.0000000000000
-2.550000 41080404.0000000000000
-2.850000 41090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 41000505
+1 0 0 0 0 1 5 5 41010505
+1 0 0 0 0 2 5 5 41020505
+1 0 0 0 0 3 5 5 41030505
+1 0 0 0 0 4 5 5 41040505
+1 0 0 0 0 5 5 5 41050505
+1 0 0 0 0 6 5 5 41060505
+1 0 0 0 0 7 5 5 41070505
+1 0 0 0 0 8 5 5 41080505
+1 0 0 0 0 9 5 5 41090505
+
-"Time = 1.000000
-0.150000 41000404.0000000000000
-0.450000 41010404.0000000000000
-0.750000 41020404.0000000000000
-1.050000 41030404.0000000000000
-1.350000 41040404.0000000000000
-1.650000 41050404.0000000000000
-1.950000 41060404.0000000000000
-2.250000 41070404.0000000000000
-2.550000 41080404.0000000000000
-2.850000 41090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/fxx.yl b/CarpetAttic/Cart3dTest/test/symmetric-x/fxx.yl
index 8265b7690..1ed637ee7 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/fxx.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/fxx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx y (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 41000005
+0 0 0 0 0 0 1 5 41000105
+0 0 0 0 0 0 2 5 41000205
+0 0 0 0 0 0 3 5 41000305
+0 0 0 0 0 0 4 5 41000405
+0 0 0 0 0 0 5 5 41000505
+0 0 0 0 0 0 6 5 41000605
+0 0 0 0 0 0 7 5 41000705
+0 0 0 0 0 0 8 5 41000805
+0 0 0 0 0 0 9 5 41000905
-"Time = 0.000000
--1.350000 41000004.0000000000000
--1.050000 41000104.0000000000000
--0.750000 41000204.0000000000000
--0.450000 41000304.0000000000000
--0.150000 41000404.0000000000000
-0.150000 41000504.0000000000000
-0.450000 41000604.0000000000000
-0.750000 41000704.0000000000000
-1.050000 41000804.0000000000000
-1.350000 41000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 41000005
+1 0 0 0 0 0 1 5 41000105
+1 0 0 0 0 0 2 5 41000205
+1 0 0 0 0 0 3 5 41000305
+1 0 0 0 0 0 4 5 41000405
+1 0 0 0 0 0 5 5 41000505
+1 0 0 0 0 0 6 5 41000605
+1 0 0 0 0 0 7 5 41000705
+1 0 0 0 0 0 8 5 41000805
+1 0 0 0 0 0 9 5 41000905
+
-"Time = 1.000000
--1.350000 41000004.0000000000000
--1.050000 41000104.0000000000000
--0.750000 41000204.0000000000000
--0.450000 41000304.0000000000000
--0.150000 41000404.0000000000000
-0.150000 41000504.0000000000000
-0.450000 41000604.0000000000000
-0.750000 41000704.0000000000000
-1.050000 41000804.0000000000000
-1.350000 41000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/fxx.zl b/CarpetAttic/Cart3dTest/test/symmetric-x/fxx.zl
index ad323d79f..938b8f946 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/fxx.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/fxx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx z (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 41000500
+0 0 0 0 0 0 5 1 41000501
+0 0 0 0 0 0 5 2 41000502
+0 0 0 0 0 0 5 3 41000503
+0 0 0 0 0 0 5 4 41000504
+0 0 0 0 0 0 5 5 41000505
+0 0 0 0 0 0 5 6 41000506
+0 0 0 0 0 0 5 7 41000507
+0 0 0 0 0 0 5 8 41000508
+0 0 0 0 0 0 5 9 41000509
-"Time = 0.000000
--1.350000 41000400.0000000000000
--1.050000 41000401.0000000000000
--0.750000 41000402.0000000000000
--0.450000 41000403.0000000000000
--0.150000 41000404.0000000000000
-0.150000 41000405.0000000000000
-0.450000 41000406.0000000000000
-0.750000 41000407.0000000000000
-1.050000 41000408.0000000000000
-1.350000 41000409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 41000500
+1 0 0 0 0 0 5 1 41000501
+1 0 0 0 0 0 5 2 41000502
+1 0 0 0 0 0 5 3 41000503
+1 0 0 0 0 0 5 4 41000504
+1 0 0 0 0 0 5 5 41000505
+1 0 0 0 0 0 5 6 41000506
+1 0 0 0 0 0 5 7 41000507
+1 0 0 0 0 0 5 8 41000508
+1 0 0 0 0 0 5 9 41000509
+
-"Time = 1.000000
--1.350000 41000400.0000000000000
--1.050000 41000401.0000000000000
--0.750000 41000402.0000000000000
--0.450000 41000403.0000000000000
--0.150000 41000404.0000000000000
-0.150000 41000405.0000000000000
-0.450000 41000406.0000000000000
-0.750000 41000407.0000000000000
-1.050000 41000408.0000000000000
-1.350000 41000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/fxy.xl b/CarpetAttic/Cart3dTest/test/symmetric-x/fxy.xl
index c73117556..bec381f14 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/fxy.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/fxy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy x (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 42000505
+0 0 0 0 0 1 5 5 42010505
+0 0 0 0 0 2 5 5 42020505
+0 0 0 0 0 3 5 5 42030505
+0 0 0 0 0 4 5 5 42040505
+0 0 0 0 0 5 5 5 42050505
+0 0 0 0 0 6 5 5 42060505
+0 0 0 0 0 7 5 5 42070505
+0 0 0 0 0 8 5 5 42080505
+0 0 0 0 0 9 5 5 42090505
-"Time = 0.000000
-0.150000 42000404.0000000000000
-0.450000 42010404.0000000000000
-0.750000 42020404.0000000000000
-1.050000 42030404.0000000000000
-1.350000 42040404.0000000000000
-1.650000 42050404.0000000000000
-1.950000 42060404.0000000000000
-2.250000 42070404.0000000000000
-2.550000 42080404.0000000000000
-2.850000 42090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 42000505
+1 0 0 0 0 1 5 5 42010505
+1 0 0 0 0 2 5 5 42020505
+1 0 0 0 0 3 5 5 42030505
+1 0 0 0 0 4 5 5 42040505
+1 0 0 0 0 5 5 5 42050505
+1 0 0 0 0 6 5 5 42060505
+1 0 0 0 0 7 5 5 42070505
+1 0 0 0 0 8 5 5 42080505
+1 0 0 0 0 9 5 5 42090505
+
-"Time = 1.000000
-0.150000 42000404.0000000000000
-0.450000 42010404.0000000000000
-0.750000 42020404.0000000000000
-1.050000 42030404.0000000000000
-1.350000 42040404.0000000000000
-1.650000 42050404.0000000000000
-1.950000 42060404.0000000000000
-2.250000 42070404.0000000000000
-2.550000 42080404.0000000000000
-2.850000 42090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/fxy.yl b/CarpetAttic/Cart3dTest/test/symmetric-x/fxy.yl
index 22e021af8..859924893 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/fxy.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/fxy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy y (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 42000005
+0 0 0 0 0 0 1 5 42000105
+0 0 0 0 0 0 2 5 42000205
+0 0 0 0 0 0 3 5 42000305
+0 0 0 0 0 0 4 5 42000405
+0 0 0 0 0 0 5 5 42000505
+0 0 0 0 0 0 6 5 42000605
+0 0 0 0 0 0 7 5 42000705
+0 0 0 0 0 0 8 5 42000805
+0 0 0 0 0 0 9 5 42000905
-"Time = 0.000000
--1.350000 42000004.0000000000000
--1.050000 42000104.0000000000000
--0.750000 42000204.0000000000000
--0.450000 42000304.0000000000000
--0.150000 42000404.0000000000000
-0.150000 42000504.0000000000000
-0.450000 42000604.0000000000000
-0.750000 42000704.0000000000000
-1.050000 42000804.0000000000000
-1.350000 42000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 42000005
+1 0 0 0 0 0 1 5 42000105
+1 0 0 0 0 0 2 5 42000205
+1 0 0 0 0 0 3 5 42000305
+1 0 0 0 0 0 4 5 42000405
+1 0 0 0 0 0 5 5 42000505
+1 0 0 0 0 0 6 5 42000605
+1 0 0 0 0 0 7 5 42000705
+1 0 0 0 0 0 8 5 42000805
+1 0 0 0 0 0 9 5 42000905
+
-"Time = 1.000000
--1.350000 42000004.0000000000000
--1.050000 42000104.0000000000000
--0.750000 42000204.0000000000000
--0.450000 42000304.0000000000000
--0.150000 42000404.0000000000000
-0.150000 42000504.0000000000000
-0.450000 42000604.0000000000000
-0.750000 42000704.0000000000000
-1.050000 42000804.0000000000000
-1.350000 42000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/fxy.zl b/CarpetAttic/Cart3dTest/test/symmetric-x/fxy.zl
index 34851f904..158e0432e 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/fxy.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/fxy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy z (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 42000500
+0 0 0 0 0 0 5 1 42000501
+0 0 0 0 0 0 5 2 42000502
+0 0 0 0 0 0 5 3 42000503
+0 0 0 0 0 0 5 4 42000504
+0 0 0 0 0 0 5 5 42000505
+0 0 0 0 0 0 5 6 42000506
+0 0 0 0 0 0 5 7 42000507
+0 0 0 0 0 0 5 8 42000508
+0 0 0 0 0 0 5 9 42000509
-"Time = 0.000000
--1.350000 42000400.0000000000000
--1.050000 42000401.0000000000000
--0.750000 42000402.0000000000000
--0.450000 42000403.0000000000000
--0.150000 42000404.0000000000000
-0.150000 42000405.0000000000000
-0.450000 42000406.0000000000000
-0.750000 42000407.0000000000000
-1.050000 42000408.0000000000000
-1.350000 42000409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 42000500
+1 0 0 0 0 0 5 1 42000501
+1 0 0 0 0 0 5 2 42000502
+1 0 0 0 0 0 5 3 42000503
+1 0 0 0 0 0 5 4 42000504
+1 0 0 0 0 0 5 5 42000505
+1 0 0 0 0 0 5 6 42000506
+1 0 0 0 0 0 5 7 42000507
+1 0 0 0 0 0 5 8 42000508
+1 0 0 0 0 0 5 9 42000509
+
-"Time = 1.000000
--1.350000 42000400.0000000000000
--1.050000 42000401.0000000000000
--0.750000 42000402.0000000000000
--0.450000 42000403.0000000000000
--0.150000 42000404.0000000000000
-0.150000 42000405.0000000000000
-0.450000 42000406.0000000000000
-0.750000 42000407.0000000000000
-1.050000 42000408.0000000000000
-1.350000 42000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/fxz.xl b/CarpetAttic/Cart3dTest/test/symmetric-x/fxz.xl
index ae0ca9c04..1a33e9082 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/fxz.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/fxz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz x (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 43000505
+0 0 0 0 0 1 5 5 43010505
+0 0 0 0 0 2 5 5 43020505
+0 0 0 0 0 3 5 5 43030505
+0 0 0 0 0 4 5 5 43040505
+0 0 0 0 0 5 5 5 43050505
+0 0 0 0 0 6 5 5 43060505
+0 0 0 0 0 7 5 5 43070505
+0 0 0 0 0 8 5 5 43080505
+0 0 0 0 0 9 5 5 43090505
-"Time = 0.000000
-0.150000 43000404.0000000000000
-0.450000 43010404.0000000000000
-0.750000 43020404.0000000000000
-1.050000 43030404.0000000000000
-1.350000 43040404.0000000000000
-1.650000 43050404.0000000000000
-1.950000 43060404.0000000000000
-2.250000 43070404.0000000000000
-2.550000 43080404.0000000000000
-2.850000 43090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 43000505
+1 0 0 0 0 1 5 5 43010505
+1 0 0 0 0 2 5 5 43020505
+1 0 0 0 0 3 5 5 43030505
+1 0 0 0 0 4 5 5 43040505
+1 0 0 0 0 5 5 5 43050505
+1 0 0 0 0 6 5 5 43060505
+1 0 0 0 0 7 5 5 43070505
+1 0 0 0 0 8 5 5 43080505
+1 0 0 0 0 9 5 5 43090505
+
-"Time = 1.000000
-0.150000 43000404.0000000000000
-0.450000 43010404.0000000000000
-0.750000 43020404.0000000000000
-1.050000 43030404.0000000000000
-1.350000 43040404.0000000000000
-1.650000 43050404.0000000000000
-1.950000 43060404.0000000000000
-2.250000 43070404.0000000000000
-2.550000 43080404.0000000000000
-2.850000 43090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/fxz.yl b/CarpetAttic/Cart3dTest/test/symmetric-x/fxz.yl
index 6e0a1b990..a9a5e103c 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/fxz.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/fxz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz y (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 43000005
+0 0 0 0 0 0 1 5 43000105
+0 0 0 0 0 0 2 5 43000205
+0 0 0 0 0 0 3 5 43000305
+0 0 0 0 0 0 4 5 43000405
+0 0 0 0 0 0 5 5 43000505
+0 0 0 0 0 0 6 5 43000605
+0 0 0 0 0 0 7 5 43000705
+0 0 0 0 0 0 8 5 43000805
+0 0 0 0 0 0 9 5 43000905
-"Time = 0.000000
--1.350000 43000004.0000000000000
--1.050000 43000104.0000000000000
--0.750000 43000204.0000000000000
--0.450000 43000304.0000000000000
--0.150000 43000404.0000000000000
-0.150000 43000504.0000000000000
-0.450000 43000604.0000000000000
-0.750000 43000704.0000000000000
-1.050000 43000804.0000000000000
-1.350000 43000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 43000005
+1 0 0 0 0 0 1 5 43000105
+1 0 0 0 0 0 2 5 43000205
+1 0 0 0 0 0 3 5 43000305
+1 0 0 0 0 0 4 5 43000405
+1 0 0 0 0 0 5 5 43000505
+1 0 0 0 0 0 6 5 43000605
+1 0 0 0 0 0 7 5 43000705
+1 0 0 0 0 0 8 5 43000805
+1 0 0 0 0 0 9 5 43000905
+
-"Time = 1.000000
--1.350000 43000004.0000000000000
--1.050000 43000104.0000000000000
--0.750000 43000204.0000000000000
--0.450000 43000304.0000000000000
--0.150000 43000404.0000000000000
-0.150000 43000504.0000000000000
-0.450000 43000604.0000000000000
-0.750000 43000704.0000000000000
-1.050000 43000804.0000000000000
-1.350000 43000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/fxz.zl b/CarpetAttic/Cart3dTest/test/symmetric-x/fxz.zl
index 4c53074b7..b5a6e8492 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/fxz.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/fxz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz z (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 43000500
+0 0 0 0 0 0 5 1 43000501
+0 0 0 0 0 0 5 2 43000502
+0 0 0 0 0 0 5 3 43000503
+0 0 0 0 0 0 5 4 43000504
+0 0 0 0 0 0 5 5 43000505
+0 0 0 0 0 0 5 6 43000506
+0 0 0 0 0 0 5 7 43000507
+0 0 0 0 0 0 5 8 43000508
+0 0 0 0 0 0 5 9 43000509
-"Time = 0.000000
--1.350000 43000400.0000000000000
--1.050000 43000401.0000000000000
--0.750000 43000402.0000000000000
--0.450000 43000403.0000000000000
--0.150000 43000404.0000000000000
-0.150000 43000405.0000000000000
-0.450000 43000406.0000000000000
-0.750000 43000407.0000000000000
-1.050000 43000408.0000000000000
-1.350000 43000409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 43000500
+1 0 0 0 0 0 5 1 43000501
+1 0 0 0 0 0 5 2 43000502
+1 0 0 0 0 0 5 3 43000503
+1 0 0 0 0 0 5 4 43000504
+1 0 0 0 0 0 5 5 43000505
+1 0 0 0 0 0 5 6 43000506
+1 0 0 0 0 0 5 7 43000507
+1 0 0 0 0 0 5 8 43000508
+1 0 0 0 0 0 5 9 43000509
+
-"Time = 1.000000
--1.350000 43000400.0000000000000
--1.050000 43000401.0000000000000
--0.750000 43000402.0000000000000
--0.450000 43000403.0000000000000
--0.150000 43000404.0000000000000
-0.150000 43000405.0000000000000
-0.450000 43000406.0000000000000
-0.750000 43000407.0000000000000
-1.050000 43000408.0000000000000
-1.350000 43000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/fyx.xl b/CarpetAttic/Cart3dTest/test/symmetric-x/fyx.xl
index 5f3da90d2..cae9cbe2d 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/fyx.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/fyx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx x (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 44000505
+0 0 0 0 0 1 5 5 44010505
+0 0 0 0 0 2 5 5 44020505
+0 0 0 0 0 3 5 5 44030505
+0 0 0 0 0 4 5 5 44040505
+0 0 0 0 0 5 5 5 44050505
+0 0 0 0 0 6 5 5 44060505
+0 0 0 0 0 7 5 5 44070505
+0 0 0 0 0 8 5 5 44080505
+0 0 0 0 0 9 5 5 44090505
-"Time = 0.000000
-0.150000 44000404.0000000000000
-0.450000 44010404.0000000000000
-0.750000 44020404.0000000000000
-1.050000 44030404.0000000000000
-1.350000 44040404.0000000000000
-1.650000 44050404.0000000000000
-1.950000 44060404.0000000000000
-2.250000 44070404.0000000000000
-2.550000 44080404.0000000000000
-2.850000 44090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 44000505
+1 0 0 0 0 1 5 5 44010505
+1 0 0 0 0 2 5 5 44020505
+1 0 0 0 0 3 5 5 44030505
+1 0 0 0 0 4 5 5 44040505
+1 0 0 0 0 5 5 5 44050505
+1 0 0 0 0 6 5 5 44060505
+1 0 0 0 0 7 5 5 44070505
+1 0 0 0 0 8 5 5 44080505
+1 0 0 0 0 9 5 5 44090505
+
-"Time = 1.000000
-0.150000 44000404.0000000000000
-0.450000 44010404.0000000000000
-0.750000 44020404.0000000000000
-1.050000 44030404.0000000000000
-1.350000 44040404.0000000000000
-1.650000 44050404.0000000000000
-1.950000 44060404.0000000000000
-2.250000 44070404.0000000000000
-2.550000 44080404.0000000000000
-2.850000 44090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/fyx.yl b/CarpetAttic/Cart3dTest/test/symmetric-x/fyx.yl
index bf6ac4e35..2358a2831 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/fyx.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/fyx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx y (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 44000005
+0 0 0 0 0 0 1 5 44000105
+0 0 0 0 0 0 2 5 44000205
+0 0 0 0 0 0 3 5 44000305
+0 0 0 0 0 0 4 5 44000405
+0 0 0 0 0 0 5 5 44000505
+0 0 0 0 0 0 6 5 44000605
+0 0 0 0 0 0 7 5 44000705
+0 0 0 0 0 0 8 5 44000805
+0 0 0 0 0 0 9 5 44000905
-"Time = 0.000000
--1.350000 44000004.0000000000000
--1.050000 44000104.0000000000000
--0.750000 44000204.0000000000000
--0.450000 44000304.0000000000000
--0.150000 44000404.0000000000000
-0.150000 44000504.0000000000000
-0.450000 44000604.0000000000000
-0.750000 44000704.0000000000000
-1.050000 44000804.0000000000000
-1.350000 44000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 44000005
+1 0 0 0 0 0 1 5 44000105
+1 0 0 0 0 0 2 5 44000205
+1 0 0 0 0 0 3 5 44000305
+1 0 0 0 0 0 4 5 44000405
+1 0 0 0 0 0 5 5 44000505
+1 0 0 0 0 0 6 5 44000605
+1 0 0 0 0 0 7 5 44000705
+1 0 0 0 0 0 8 5 44000805
+1 0 0 0 0 0 9 5 44000905
+
-"Time = 1.000000
--1.350000 44000004.0000000000000
--1.050000 44000104.0000000000000
--0.750000 44000204.0000000000000
--0.450000 44000304.0000000000000
--0.150000 44000404.0000000000000
-0.150000 44000504.0000000000000
-0.450000 44000604.0000000000000
-0.750000 44000704.0000000000000
-1.050000 44000804.0000000000000
-1.350000 44000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/fyx.zl b/CarpetAttic/Cart3dTest/test/symmetric-x/fyx.zl
index ca895e548..08c95634d 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/fyx.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/fyx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx z (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 44000500
+0 0 0 0 0 0 5 1 44000501
+0 0 0 0 0 0 5 2 44000502
+0 0 0 0 0 0 5 3 44000503
+0 0 0 0 0 0 5 4 44000504
+0 0 0 0 0 0 5 5 44000505
+0 0 0 0 0 0 5 6 44000506
+0 0 0 0 0 0 5 7 44000507
+0 0 0 0 0 0 5 8 44000508
+0 0 0 0 0 0 5 9 44000509
-"Time = 0.000000
--1.350000 44000400.0000000000000
--1.050000 44000401.0000000000000
--0.750000 44000402.0000000000000
--0.450000 44000403.0000000000000
--0.150000 44000404.0000000000000
-0.150000 44000405.0000000000000
-0.450000 44000406.0000000000000
-0.750000 44000407.0000000000000
-1.050000 44000408.0000000000000
-1.350000 44000409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 44000500
+1 0 0 0 0 0 5 1 44000501
+1 0 0 0 0 0 5 2 44000502
+1 0 0 0 0 0 5 3 44000503
+1 0 0 0 0 0 5 4 44000504
+1 0 0 0 0 0 5 5 44000505
+1 0 0 0 0 0 5 6 44000506
+1 0 0 0 0 0 5 7 44000507
+1 0 0 0 0 0 5 8 44000508
+1 0 0 0 0 0 5 9 44000509
+
-"Time = 1.000000
--1.350000 44000400.0000000000000
--1.050000 44000401.0000000000000
--0.750000 44000402.0000000000000
--0.450000 44000403.0000000000000
--0.150000 44000404.0000000000000
-0.150000 44000405.0000000000000
-0.450000 44000406.0000000000000
-0.750000 44000407.0000000000000
-1.050000 44000408.0000000000000
-1.350000 44000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/fyy.xl b/CarpetAttic/Cart3dTest/test/symmetric-x/fyy.xl
index e98d437c4..5008c5b15 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/fyy.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/fyy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy x (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 45000505
+0 0 0 0 0 1 5 5 45010505
+0 0 0 0 0 2 5 5 45020505
+0 0 0 0 0 3 5 5 45030505
+0 0 0 0 0 4 5 5 45040505
+0 0 0 0 0 5 5 5 45050505
+0 0 0 0 0 6 5 5 45060505
+0 0 0 0 0 7 5 5 45070505
+0 0 0 0 0 8 5 5 45080505
+0 0 0 0 0 9 5 5 45090505
-"Time = 0.000000
-0.150000 45000404.0000000000000
-0.450000 45010404.0000000000000
-0.750000 45020404.0000000000000
-1.050000 45030404.0000000000000
-1.350000 45040404.0000000000000
-1.650000 45050404.0000000000000
-1.950000 45060404.0000000000000
-2.250000 45070404.0000000000000
-2.550000 45080404.0000000000000
-2.850000 45090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 45000505
+1 0 0 0 0 1 5 5 45010505
+1 0 0 0 0 2 5 5 45020505
+1 0 0 0 0 3 5 5 45030505
+1 0 0 0 0 4 5 5 45040505
+1 0 0 0 0 5 5 5 45050505
+1 0 0 0 0 6 5 5 45060505
+1 0 0 0 0 7 5 5 45070505
+1 0 0 0 0 8 5 5 45080505
+1 0 0 0 0 9 5 5 45090505
+
-"Time = 1.000000
-0.150000 45000404.0000000000000
-0.450000 45010404.0000000000000
-0.750000 45020404.0000000000000
-1.050000 45030404.0000000000000
-1.350000 45040404.0000000000000
-1.650000 45050404.0000000000000
-1.950000 45060404.0000000000000
-2.250000 45070404.0000000000000
-2.550000 45080404.0000000000000
-2.850000 45090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/fyy.yl b/CarpetAttic/Cart3dTest/test/symmetric-x/fyy.yl
index 8cc2b9e55..3628c1ab5 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/fyy.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/fyy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy y (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 45000005
+0 0 0 0 0 0 1 5 45000105
+0 0 0 0 0 0 2 5 45000205
+0 0 0 0 0 0 3 5 45000305
+0 0 0 0 0 0 4 5 45000405
+0 0 0 0 0 0 5 5 45000505
+0 0 0 0 0 0 6 5 45000605
+0 0 0 0 0 0 7 5 45000705
+0 0 0 0 0 0 8 5 45000805
+0 0 0 0 0 0 9 5 45000905
-"Time = 0.000000
--1.350000 45000004.0000000000000
--1.050000 45000104.0000000000000
--0.750000 45000204.0000000000000
--0.450000 45000304.0000000000000
--0.150000 45000404.0000000000000
-0.150000 45000504.0000000000000
-0.450000 45000604.0000000000000
-0.750000 45000704.0000000000000
-1.050000 45000804.0000000000000
-1.350000 45000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 45000005
+1 0 0 0 0 0 1 5 45000105
+1 0 0 0 0 0 2 5 45000205
+1 0 0 0 0 0 3 5 45000305
+1 0 0 0 0 0 4 5 45000405
+1 0 0 0 0 0 5 5 45000505
+1 0 0 0 0 0 6 5 45000605
+1 0 0 0 0 0 7 5 45000705
+1 0 0 0 0 0 8 5 45000805
+1 0 0 0 0 0 9 5 45000905
+
-"Time = 1.000000
--1.350000 45000004.0000000000000
--1.050000 45000104.0000000000000
--0.750000 45000204.0000000000000
--0.450000 45000304.0000000000000
--0.150000 45000404.0000000000000
-0.150000 45000504.0000000000000
-0.450000 45000604.0000000000000
-0.750000 45000704.0000000000000
-1.050000 45000804.0000000000000
-1.350000 45000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/fyy.zl b/CarpetAttic/Cart3dTest/test/symmetric-x/fyy.zl
index d12f1e7f0..0a88a3cfd 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/fyy.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/fyy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy z (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 45000500
+0 0 0 0 0 0 5 1 45000501
+0 0 0 0 0 0 5 2 45000502
+0 0 0 0 0 0 5 3 45000503
+0 0 0 0 0 0 5 4 45000504
+0 0 0 0 0 0 5 5 45000505
+0 0 0 0 0 0 5 6 45000506
+0 0 0 0 0 0 5 7 45000507
+0 0 0 0 0 0 5 8 45000508
+0 0 0 0 0 0 5 9 45000509
-"Time = 0.000000
--1.350000 45000400.0000000000000
--1.050000 45000401.0000000000000
--0.750000 45000402.0000000000000
--0.450000 45000403.0000000000000
--0.150000 45000404.0000000000000
-0.150000 45000405.0000000000000
-0.450000 45000406.0000000000000
-0.750000 45000407.0000000000000
-1.050000 45000408.0000000000000
-1.350000 45000409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 45000500
+1 0 0 0 0 0 5 1 45000501
+1 0 0 0 0 0 5 2 45000502
+1 0 0 0 0 0 5 3 45000503
+1 0 0 0 0 0 5 4 45000504
+1 0 0 0 0 0 5 5 45000505
+1 0 0 0 0 0 5 6 45000506
+1 0 0 0 0 0 5 7 45000507
+1 0 0 0 0 0 5 8 45000508
+1 0 0 0 0 0 5 9 45000509
+
-"Time = 1.000000
--1.350000 45000400.0000000000000
--1.050000 45000401.0000000000000
--0.750000 45000402.0000000000000
--0.450000 45000403.0000000000000
--0.150000 45000404.0000000000000
-0.150000 45000405.0000000000000
-0.450000 45000406.0000000000000
-0.750000 45000407.0000000000000
-1.050000 45000408.0000000000000
-1.350000 45000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/fyz.xl b/CarpetAttic/Cart3dTest/test/symmetric-x/fyz.xl
index a51a4f020..d98ca2a15 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/fyz.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/fyz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz x (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 46000505
+0 0 0 0 0 1 5 5 46010505
+0 0 0 0 0 2 5 5 46020505
+0 0 0 0 0 3 5 5 46030505
+0 0 0 0 0 4 5 5 46040505
+0 0 0 0 0 5 5 5 46050505
+0 0 0 0 0 6 5 5 46060505
+0 0 0 0 0 7 5 5 46070505
+0 0 0 0 0 8 5 5 46080505
+0 0 0 0 0 9 5 5 46090505
-"Time = 0.000000
-0.150000 46000404.0000000000000
-0.450000 46010404.0000000000000
-0.750000 46020404.0000000000000
-1.050000 46030404.0000000000000
-1.350000 46040404.0000000000000
-1.650000 46050404.0000000000000
-1.950000 46060404.0000000000000
-2.250000 46070404.0000000000000
-2.550000 46080404.0000000000000
-2.850000 46090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 46000505
+1 0 0 0 0 1 5 5 46010505
+1 0 0 0 0 2 5 5 46020505
+1 0 0 0 0 3 5 5 46030505
+1 0 0 0 0 4 5 5 46040505
+1 0 0 0 0 5 5 5 46050505
+1 0 0 0 0 6 5 5 46060505
+1 0 0 0 0 7 5 5 46070505
+1 0 0 0 0 8 5 5 46080505
+1 0 0 0 0 9 5 5 46090505
+
-"Time = 1.000000
-0.150000 46000404.0000000000000
-0.450000 46010404.0000000000000
-0.750000 46020404.0000000000000
-1.050000 46030404.0000000000000
-1.350000 46040404.0000000000000
-1.650000 46050404.0000000000000
-1.950000 46060404.0000000000000
-2.250000 46070404.0000000000000
-2.550000 46080404.0000000000000
-2.850000 46090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/fyz.yl b/CarpetAttic/Cart3dTest/test/symmetric-x/fyz.yl
index 27fac5bc4..870588e16 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/fyz.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/fyz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz y (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 46000005
+0 0 0 0 0 0 1 5 46000105
+0 0 0 0 0 0 2 5 46000205
+0 0 0 0 0 0 3 5 46000305
+0 0 0 0 0 0 4 5 46000405
+0 0 0 0 0 0 5 5 46000505
+0 0 0 0 0 0 6 5 46000605
+0 0 0 0 0 0 7 5 46000705
+0 0 0 0 0 0 8 5 46000805
+0 0 0 0 0 0 9 5 46000905
-"Time = 0.000000
--1.350000 46000004.0000000000000
--1.050000 46000104.0000000000000
--0.750000 46000204.0000000000000
--0.450000 46000304.0000000000000
--0.150000 46000404.0000000000000
-0.150000 46000504.0000000000000
-0.450000 46000604.0000000000000
-0.750000 46000704.0000000000000
-1.050000 46000804.0000000000000
-1.350000 46000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 46000005
+1 0 0 0 0 0 1 5 46000105
+1 0 0 0 0 0 2 5 46000205
+1 0 0 0 0 0 3 5 46000305
+1 0 0 0 0 0 4 5 46000405
+1 0 0 0 0 0 5 5 46000505
+1 0 0 0 0 0 6 5 46000605
+1 0 0 0 0 0 7 5 46000705
+1 0 0 0 0 0 8 5 46000805
+1 0 0 0 0 0 9 5 46000905
+
-"Time = 1.000000
--1.350000 46000004.0000000000000
--1.050000 46000104.0000000000000
--0.750000 46000204.0000000000000
--0.450000 46000304.0000000000000
--0.150000 46000404.0000000000000
-0.150000 46000504.0000000000000
-0.450000 46000604.0000000000000
-0.750000 46000704.0000000000000
-1.050000 46000804.0000000000000
-1.350000 46000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/fyz.zl b/CarpetAttic/Cart3dTest/test/symmetric-x/fyz.zl
index a8247e9e2..499f62fdc 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/fyz.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/fyz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz z (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 46000500
+0 0 0 0 0 0 5 1 46000501
+0 0 0 0 0 0 5 2 46000502
+0 0 0 0 0 0 5 3 46000503
+0 0 0 0 0 0 5 4 46000504
+0 0 0 0 0 0 5 5 46000505
+0 0 0 0 0 0 5 6 46000506
+0 0 0 0 0 0 5 7 46000507
+0 0 0 0 0 0 5 8 46000508
+0 0 0 0 0 0 5 9 46000509
-"Time = 0.000000
--1.350000 46000400.0000000000000
--1.050000 46000401.0000000000000
--0.750000 46000402.0000000000000
--0.450000 46000403.0000000000000
--0.150000 46000404.0000000000000
-0.150000 46000405.0000000000000
-0.450000 46000406.0000000000000
-0.750000 46000407.0000000000000
-1.050000 46000408.0000000000000
-1.350000 46000409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 46000500
+1 0 0 0 0 0 5 1 46000501
+1 0 0 0 0 0 5 2 46000502
+1 0 0 0 0 0 5 3 46000503
+1 0 0 0 0 0 5 4 46000504
+1 0 0 0 0 0 5 5 46000505
+1 0 0 0 0 0 5 6 46000506
+1 0 0 0 0 0 5 7 46000507
+1 0 0 0 0 0 5 8 46000508
+1 0 0 0 0 0 5 9 46000509
+
-"Time = 1.000000
--1.350000 46000400.0000000000000
--1.050000 46000401.0000000000000
--0.750000 46000402.0000000000000
--0.450000 46000403.0000000000000
--0.150000 46000404.0000000000000
-0.150000 46000405.0000000000000
-0.450000 46000406.0000000000000
-0.750000 46000407.0000000000000
-1.050000 46000408.0000000000000
-1.350000 46000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/fzx.xl b/CarpetAttic/Cart3dTest/test/symmetric-x/fzx.xl
index c19cc33d0..b13ff1471 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/fzx.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/fzx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx x (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 47000505
+0 0 0 0 0 1 5 5 47010505
+0 0 0 0 0 2 5 5 47020505
+0 0 0 0 0 3 5 5 47030505
+0 0 0 0 0 4 5 5 47040505
+0 0 0 0 0 5 5 5 47050505
+0 0 0 0 0 6 5 5 47060505
+0 0 0 0 0 7 5 5 47070505
+0 0 0 0 0 8 5 5 47080505
+0 0 0 0 0 9 5 5 47090505
-"Time = 0.000000
-0.150000 47000404.0000000000000
-0.450000 47010404.0000000000000
-0.750000 47020404.0000000000000
-1.050000 47030404.0000000000000
-1.350000 47040404.0000000000000
-1.650000 47050404.0000000000000
-1.950000 47060404.0000000000000
-2.250000 47070404.0000000000000
-2.550000 47080404.0000000000000
-2.850000 47090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 47000505
+1 0 0 0 0 1 5 5 47010505
+1 0 0 0 0 2 5 5 47020505
+1 0 0 0 0 3 5 5 47030505
+1 0 0 0 0 4 5 5 47040505
+1 0 0 0 0 5 5 5 47050505
+1 0 0 0 0 6 5 5 47060505
+1 0 0 0 0 7 5 5 47070505
+1 0 0 0 0 8 5 5 47080505
+1 0 0 0 0 9 5 5 47090505
+
-"Time = 1.000000
-0.150000 47000404.0000000000000
-0.450000 47010404.0000000000000
-0.750000 47020404.0000000000000
-1.050000 47030404.0000000000000
-1.350000 47040404.0000000000000
-1.650000 47050404.0000000000000
-1.950000 47060404.0000000000000
-2.250000 47070404.0000000000000
-2.550000 47080404.0000000000000
-2.850000 47090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/fzx.yl b/CarpetAttic/Cart3dTest/test/symmetric-x/fzx.yl
index 4c9d78f1d..c5706bc4b 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/fzx.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/fzx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx y (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 47000005
+0 0 0 0 0 0 1 5 47000105
+0 0 0 0 0 0 2 5 47000205
+0 0 0 0 0 0 3 5 47000305
+0 0 0 0 0 0 4 5 47000405
+0 0 0 0 0 0 5 5 47000505
+0 0 0 0 0 0 6 5 47000605
+0 0 0 0 0 0 7 5 47000705
+0 0 0 0 0 0 8 5 47000805
+0 0 0 0 0 0 9 5 47000905
-"Time = 0.000000
--1.350000 47000004.0000000000000
--1.050000 47000104.0000000000000
--0.750000 47000204.0000000000000
--0.450000 47000304.0000000000000
--0.150000 47000404.0000000000000
-0.150000 47000504.0000000000000
-0.450000 47000604.0000000000000
-0.750000 47000704.0000000000000
-1.050000 47000804.0000000000000
-1.350000 47000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 47000005
+1 0 0 0 0 0 1 5 47000105
+1 0 0 0 0 0 2 5 47000205
+1 0 0 0 0 0 3 5 47000305
+1 0 0 0 0 0 4 5 47000405
+1 0 0 0 0 0 5 5 47000505
+1 0 0 0 0 0 6 5 47000605
+1 0 0 0 0 0 7 5 47000705
+1 0 0 0 0 0 8 5 47000805
+1 0 0 0 0 0 9 5 47000905
+
-"Time = 1.000000
--1.350000 47000004.0000000000000
--1.050000 47000104.0000000000000
--0.750000 47000204.0000000000000
--0.450000 47000304.0000000000000
--0.150000 47000404.0000000000000
-0.150000 47000504.0000000000000
-0.450000 47000604.0000000000000
-0.750000 47000704.0000000000000
-1.050000 47000804.0000000000000
-1.350000 47000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/fzx.zl b/CarpetAttic/Cart3dTest/test/symmetric-x/fzx.zl
index cd2db9494..904705a55 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/fzx.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/fzx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx z (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 47000500
+0 0 0 0 0 0 5 1 47000501
+0 0 0 0 0 0 5 2 47000502
+0 0 0 0 0 0 5 3 47000503
+0 0 0 0 0 0 5 4 47000504
+0 0 0 0 0 0 5 5 47000505
+0 0 0 0 0 0 5 6 47000506
+0 0 0 0 0 0 5 7 47000507
+0 0 0 0 0 0 5 8 47000508
+0 0 0 0 0 0 5 9 47000509
-"Time = 0.000000
--1.350000 47000400.0000000000000
--1.050000 47000401.0000000000000
--0.750000 47000402.0000000000000
--0.450000 47000403.0000000000000
--0.150000 47000404.0000000000000
-0.150000 47000405.0000000000000
-0.450000 47000406.0000000000000
-0.750000 47000407.0000000000000
-1.050000 47000408.0000000000000
-1.350000 47000409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 47000500
+1 0 0 0 0 0 5 1 47000501
+1 0 0 0 0 0 5 2 47000502
+1 0 0 0 0 0 5 3 47000503
+1 0 0 0 0 0 5 4 47000504
+1 0 0 0 0 0 5 5 47000505
+1 0 0 0 0 0 5 6 47000506
+1 0 0 0 0 0 5 7 47000507
+1 0 0 0 0 0 5 8 47000508
+1 0 0 0 0 0 5 9 47000509
+
-"Time = 1.000000
--1.350000 47000400.0000000000000
--1.050000 47000401.0000000000000
--0.750000 47000402.0000000000000
--0.450000 47000403.0000000000000
--0.150000 47000404.0000000000000
-0.150000 47000405.0000000000000
-0.450000 47000406.0000000000000
-0.750000 47000407.0000000000000
-1.050000 47000408.0000000000000
-1.350000 47000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/fzy.xl b/CarpetAttic/Cart3dTest/test/symmetric-x/fzy.xl
index 245b19aa5..d8b2ffa66 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/fzy.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/fzy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy x (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 48000505
+0 0 0 0 0 1 5 5 48010505
+0 0 0 0 0 2 5 5 48020505
+0 0 0 0 0 3 5 5 48030505
+0 0 0 0 0 4 5 5 48040505
+0 0 0 0 0 5 5 5 48050505
+0 0 0 0 0 6 5 5 48060505
+0 0 0 0 0 7 5 5 48070505
+0 0 0 0 0 8 5 5 48080505
+0 0 0 0 0 9 5 5 48090505
-"Time = 0.000000
-0.150000 48000404.0000000000000
-0.450000 48010404.0000000000000
-0.750000 48020404.0000000000000
-1.050000 48030404.0000000000000
-1.350000 48040404.0000000000000
-1.650000 48050404.0000000000000
-1.950000 48060404.0000000000000
-2.250000 48070404.0000000000000
-2.550000 48080404.0000000000000
-2.850000 48090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 48000505
+1 0 0 0 0 1 5 5 48010505
+1 0 0 0 0 2 5 5 48020505
+1 0 0 0 0 3 5 5 48030505
+1 0 0 0 0 4 5 5 48040505
+1 0 0 0 0 5 5 5 48050505
+1 0 0 0 0 6 5 5 48060505
+1 0 0 0 0 7 5 5 48070505
+1 0 0 0 0 8 5 5 48080505
+1 0 0 0 0 9 5 5 48090505
+
-"Time = 1.000000
-0.150000 48000404.0000000000000
-0.450000 48010404.0000000000000
-0.750000 48020404.0000000000000
-1.050000 48030404.0000000000000
-1.350000 48040404.0000000000000
-1.650000 48050404.0000000000000
-1.950000 48060404.0000000000000
-2.250000 48070404.0000000000000
-2.550000 48080404.0000000000000
-2.850000 48090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/fzy.yl b/CarpetAttic/Cart3dTest/test/symmetric-x/fzy.yl
index c4c3afc5d..c92a9b756 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/fzy.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/fzy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy y (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 48000005
+0 0 0 0 0 0 1 5 48000105
+0 0 0 0 0 0 2 5 48000205
+0 0 0 0 0 0 3 5 48000305
+0 0 0 0 0 0 4 5 48000405
+0 0 0 0 0 0 5 5 48000505
+0 0 0 0 0 0 6 5 48000605
+0 0 0 0 0 0 7 5 48000705
+0 0 0 0 0 0 8 5 48000805
+0 0 0 0 0 0 9 5 48000905
-"Time = 0.000000
--1.350000 48000004.0000000000000
--1.050000 48000104.0000000000000
--0.750000 48000204.0000000000000
--0.450000 48000304.0000000000000
--0.150000 48000404.0000000000000
-0.150000 48000504.0000000000000
-0.450000 48000604.0000000000000
-0.750000 48000704.0000000000000
-1.050000 48000804.0000000000000
-1.350000 48000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 48000005
+1 0 0 0 0 0 1 5 48000105
+1 0 0 0 0 0 2 5 48000205
+1 0 0 0 0 0 3 5 48000305
+1 0 0 0 0 0 4 5 48000405
+1 0 0 0 0 0 5 5 48000505
+1 0 0 0 0 0 6 5 48000605
+1 0 0 0 0 0 7 5 48000705
+1 0 0 0 0 0 8 5 48000805
+1 0 0 0 0 0 9 5 48000905
+
-"Time = 1.000000
--1.350000 48000004.0000000000000
--1.050000 48000104.0000000000000
--0.750000 48000204.0000000000000
--0.450000 48000304.0000000000000
--0.150000 48000404.0000000000000
-0.150000 48000504.0000000000000
-0.450000 48000604.0000000000000
-0.750000 48000704.0000000000000
-1.050000 48000804.0000000000000
-1.350000 48000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/fzy.zl b/CarpetAttic/Cart3dTest/test/symmetric-x/fzy.zl
index 694162ca9..4edbe2ecc 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/fzy.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/fzy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy z (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 48000500
+0 0 0 0 0 0 5 1 48000501
+0 0 0 0 0 0 5 2 48000502
+0 0 0 0 0 0 5 3 48000503
+0 0 0 0 0 0 5 4 48000504
+0 0 0 0 0 0 5 5 48000505
+0 0 0 0 0 0 5 6 48000506
+0 0 0 0 0 0 5 7 48000507
+0 0 0 0 0 0 5 8 48000508
+0 0 0 0 0 0 5 9 48000509
-"Time = 0.000000
--1.350000 48000400.0000000000000
--1.050000 48000401.0000000000000
--0.750000 48000402.0000000000000
--0.450000 48000403.0000000000000
--0.150000 48000404.0000000000000
-0.150000 48000405.0000000000000
-0.450000 48000406.0000000000000
-0.750000 48000407.0000000000000
-1.050000 48000408.0000000000000
-1.350000 48000409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 48000500
+1 0 0 0 0 0 5 1 48000501
+1 0 0 0 0 0 5 2 48000502
+1 0 0 0 0 0 5 3 48000503
+1 0 0 0 0 0 5 4 48000504
+1 0 0 0 0 0 5 5 48000505
+1 0 0 0 0 0 5 6 48000506
+1 0 0 0 0 0 5 7 48000507
+1 0 0 0 0 0 5 8 48000508
+1 0 0 0 0 0 5 9 48000509
+
-"Time = 1.000000
--1.350000 48000400.0000000000000
--1.050000 48000401.0000000000000
--0.750000 48000402.0000000000000
--0.450000 48000403.0000000000000
--0.150000 48000404.0000000000000
-0.150000 48000405.0000000000000
-0.450000 48000406.0000000000000
-0.750000 48000407.0000000000000
-1.050000 48000408.0000000000000
-1.350000 48000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/fzz.xl b/CarpetAttic/Cart3dTest/test/symmetric-x/fzz.xl
index d47c43fb3..9c8f5cbf0 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/fzz.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/fzz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz x (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 49000505
+0 0 0 0 0 1 5 5 49010505
+0 0 0 0 0 2 5 5 49020505
+0 0 0 0 0 3 5 5 49030505
+0 0 0 0 0 4 5 5 49040505
+0 0 0 0 0 5 5 5 49050505
+0 0 0 0 0 6 5 5 49060505
+0 0 0 0 0 7 5 5 49070505
+0 0 0 0 0 8 5 5 49080505
+0 0 0 0 0 9 5 5 49090505
-"Time = 0.000000
-0.150000 49000404.0000000000000
-0.450000 49010404.0000000000000
-0.750000 49020404.0000000000000
-1.050000 49030404.0000000000000
-1.350000 49040404.0000000000000
-1.650000 49050404.0000000000000
-1.950000 49060404.0000000000000
-2.250000 49070404.0000000000000
-2.550000 49080404.0000000000000
-2.850000 49090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 49000505
+1 0 0 0 0 1 5 5 49010505
+1 0 0 0 0 2 5 5 49020505
+1 0 0 0 0 3 5 5 49030505
+1 0 0 0 0 4 5 5 49040505
+1 0 0 0 0 5 5 5 49050505
+1 0 0 0 0 6 5 5 49060505
+1 0 0 0 0 7 5 5 49070505
+1 0 0 0 0 8 5 5 49080505
+1 0 0 0 0 9 5 5 49090505
+
-"Time = 1.000000
-0.150000 49000404.0000000000000
-0.450000 49010404.0000000000000
-0.750000 49020404.0000000000000
-1.050000 49030404.0000000000000
-1.350000 49040404.0000000000000
-1.650000 49050404.0000000000000
-1.950000 49060404.0000000000000
-2.250000 49070404.0000000000000
-2.550000 49080404.0000000000000
-2.850000 49090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/fzz.yl b/CarpetAttic/Cart3dTest/test/symmetric-x/fzz.yl
index b4ce3d2af..329dd8d2f 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/fzz.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/fzz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz y (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 49000005
+0 0 0 0 0 0 1 5 49000105
+0 0 0 0 0 0 2 5 49000205
+0 0 0 0 0 0 3 5 49000305
+0 0 0 0 0 0 4 5 49000405
+0 0 0 0 0 0 5 5 49000505
+0 0 0 0 0 0 6 5 49000605
+0 0 0 0 0 0 7 5 49000705
+0 0 0 0 0 0 8 5 49000805
+0 0 0 0 0 0 9 5 49000905
-"Time = 0.000000
--1.350000 49000004.0000000000000
--1.050000 49000104.0000000000000
--0.750000 49000204.0000000000000
--0.450000 49000304.0000000000000
--0.150000 49000404.0000000000000
-0.150000 49000504.0000000000000
-0.450000 49000604.0000000000000
-0.750000 49000704.0000000000000
-1.050000 49000804.0000000000000
-1.350000 49000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 49000005
+1 0 0 0 0 0 1 5 49000105
+1 0 0 0 0 0 2 5 49000205
+1 0 0 0 0 0 3 5 49000305
+1 0 0 0 0 0 4 5 49000405
+1 0 0 0 0 0 5 5 49000505
+1 0 0 0 0 0 6 5 49000605
+1 0 0 0 0 0 7 5 49000705
+1 0 0 0 0 0 8 5 49000805
+1 0 0 0 0 0 9 5 49000905
+
-"Time = 1.000000
--1.350000 49000004.0000000000000
--1.050000 49000104.0000000000000
--0.750000 49000204.0000000000000
--0.450000 49000304.0000000000000
--0.150000 49000404.0000000000000
-0.150000 49000504.0000000000000
-0.450000 49000604.0000000000000
-0.750000 49000704.0000000000000
-1.050000 49000804.0000000000000
-1.350000 49000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/fzz.zl b/CarpetAttic/Cart3dTest/test/symmetric-x/fzz.zl
index e4c631bca..4eb36f5bc 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/fzz.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/fzz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz z (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 49000500
+0 0 0 0 0 0 5 1 49000501
+0 0 0 0 0 0 5 2 49000502
+0 0 0 0 0 0 5 3 49000503
+0 0 0 0 0 0 5 4 49000504
+0 0 0 0 0 0 5 5 49000505
+0 0 0 0 0 0 5 6 49000506
+0 0 0 0 0 0 5 7 49000507
+0 0 0 0 0 0 5 8 49000508
+0 0 0 0 0 0 5 9 49000509
-"Time = 0.000000
--1.350000 49000400.0000000000000
--1.050000 49000401.0000000000000
--0.750000 49000402.0000000000000
--0.450000 49000403.0000000000000
--0.150000 49000404.0000000000000
-0.150000 49000405.0000000000000
-0.450000 49000406.0000000000000
-0.750000 49000407.0000000000000
-1.050000 49000408.0000000000000
-1.350000 49000409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 49000500
+1 0 0 0 0 0 5 1 49000501
+1 0 0 0 0 0 5 2 49000502
+1 0 0 0 0 0 5 3 49000503
+1 0 0 0 0 0 5 4 49000504
+1 0 0 0 0 0 5 5 49000505
+1 0 0 0 0 0 5 6 49000506
+1 0 0 0 0 0 5 7 49000507
+1 0 0 0 0 0 5 8 49000508
+1 0 0 0 0 0 5 9 49000509
+
-"Time = 1.000000
--1.350000 49000400.0000000000000
--1.050000 49000401.0000000000000
--0.750000 49000402.0000000000000
--0.450000 49000403.0000000000000
--0.150000 49000404.0000000000000
-0.150000 49000405.0000000000000
-0.450000 49000406.0000000000000
-0.750000 49000407.0000000000000
-1.050000 49000408.0000000000000
-1.350000 49000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/s.xl b/CarpetAttic/Cart3dTest/test/symmetric-x/s.xl
index 7334a491b..14e43aa3e 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/s.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/s.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::s x (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 1000505
+0 0 0 0 0 1 5 5 1010505
+0 0 0 0 0 2 5 5 1020505
+0 0 0 0 0 3 5 5 1030505
+0 0 0 0 0 4 5 5 1040505
+0 0 0 0 0 5 5 5 1050505
+0 0 0 0 0 6 5 5 1060505
+0 0 0 0 0 7 5 5 1070505
+0 0 0 0 0 8 5 5 1080505
+0 0 0 0 0 9 5 5 1090505
-"Time = 0.000000
-0.150000 1000404.0000000000000
-0.450000 1010404.0000000000000
-0.750000 1020404.0000000000000
-1.050000 1030404.0000000000000
-1.350000 1040404.0000000000000
-1.650000 1050404.0000000000000
-1.950000 1060404.0000000000000
-2.250000 1070404.0000000000000
-2.550000 1080404.0000000000000
-2.850000 1090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 1000505
+1 0 0 0 0 1 5 5 1010505
+1 0 0 0 0 2 5 5 1020505
+1 0 0 0 0 3 5 5 1030505
+1 0 0 0 0 4 5 5 1040505
+1 0 0 0 0 5 5 5 1050505
+1 0 0 0 0 6 5 5 1060505
+1 0 0 0 0 7 5 5 1070505
+1 0 0 0 0 8 5 5 1080505
+1 0 0 0 0 9 5 5 1090505
+
-"Time = 1.000000
-0.150000 1000404.0000000000000
-0.450000 1010404.0000000000000
-0.750000 1020404.0000000000000
-1.050000 1030404.0000000000000
-1.350000 1040404.0000000000000
-1.650000 1050404.0000000000000
-1.950000 1060404.0000000000000
-2.250000 1070404.0000000000000
-2.550000 1080404.0000000000000
-2.850000 1090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/s.yl b/CarpetAttic/Cart3dTest/test/symmetric-x/s.yl
index a21947ff4..d62397fa5 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/s.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/s.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::s y (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 1000005
+0 0 0 0 0 0 1 5 1000105
+0 0 0 0 0 0 2 5 1000205
+0 0 0 0 0 0 3 5 1000305
+0 0 0 0 0 0 4 5 1000405
+0 0 0 0 0 0 5 5 1000505
+0 0 0 0 0 0 6 5 1000605
+0 0 0 0 0 0 7 5 1000705
+0 0 0 0 0 0 8 5 1000805
+0 0 0 0 0 0 9 5 1000905
-"Time = 0.000000
--1.350000 1000004.0000000000000
--1.050000 1000104.0000000000000
--0.750000 1000204.0000000000000
--0.450000 1000304.0000000000000
--0.150000 1000404.0000000000000
-0.150000 1000504.0000000000000
-0.450000 1000604.0000000000000
-0.750000 1000704.0000000000000
-1.050000 1000804.0000000000000
-1.350000 1000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 1000005
+1 0 0 0 0 0 1 5 1000105
+1 0 0 0 0 0 2 5 1000205
+1 0 0 0 0 0 3 5 1000305
+1 0 0 0 0 0 4 5 1000405
+1 0 0 0 0 0 5 5 1000505
+1 0 0 0 0 0 6 5 1000605
+1 0 0 0 0 0 7 5 1000705
+1 0 0 0 0 0 8 5 1000805
+1 0 0 0 0 0 9 5 1000905
+
-"Time = 1.000000
--1.350000 1000004.0000000000000
--1.050000 1000104.0000000000000
--0.750000 1000204.0000000000000
--0.450000 1000304.0000000000000
--0.150000 1000404.0000000000000
-0.150000 1000504.0000000000000
-0.450000 1000604.0000000000000
-0.750000 1000704.0000000000000
-1.050000 1000804.0000000000000
-1.350000 1000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/s.zl b/CarpetAttic/Cart3dTest/test/symmetric-x/s.zl
index 58cdcdbd3..ca83d551c 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/s.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/s.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::s z (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 1000500
+0 0 0 0 0 0 5 1 1000501
+0 0 0 0 0 0 5 2 1000502
+0 0 0 0 0 0 5 3 1000503
+0 0 0 0 0 0 5 4 1000504
+0 0 0 0 0 0 5 5 1000505
+0 0 0 0 0 0 5 6 1000506
+0 0 0 0 0 0 5 7 1000507
+0 0 0 0 0 0 5 8 1000508
+0 0 0 0 0 0 5 9 1000509
-"Time = 0.000000
--1.350000 1000400.0000000000000
--1.050000 1000401.0000000000000
--0.750000 1000402.0000000000000
--0.450000 1000403.0000000000000
--0.150000 1000404.0000000000000
-0.150000 1000405.0000000000000
-0.450000 1000406.0000000000000
-0.750000 1000407.0000000000000
-1.050000 1000408.0000000000000
-1.350000 1000409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 1000500
+1 0 0 0 0 0 5 1 1000501
+1 0 0 0 0 0 5 2 1000502
+1 0 0 0 0 0 5 3 1000503
+1 0 0 0 0 0 5 4 1000504
+1 0 0 0 0 0 5 5 1000505
+1 0 0 0 0 0 5 6 1000506
+1 0 0 0 0 0 5 7 1000507
+1 0 0 0 0 0 5 8 1000508
+1 0 0 0 0 0 5 9 1000509
+
-"Time = 1.000000
--1.350000 1000400.0000000000000
--1.050000 1000401.0000000000000
--0.750000 1000402.0000000000000
--0.450000 1000403.0000000000000
--0.150000 1000404.0000000000000
-0.150000 1000405.0000000000000
-0.450000 1000406.0000000000000
-0.750000 1000407.0000000000000
-1.050000 1000408.0000000000000
-1.350000 1000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/spher3d_r.xl b/CarpetAttic/Cart3dTest/test/symmetric-x/spher3d_r.xl
index a7e55a2d4..b61313d6b 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/spher3d_r.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/spher3d_r.xl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r x (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 0.259807621135332
+0 0 0 0 0 1 5 5 0.49749371855331
+0 0 0 0 0 2 5 5 0.779422863405995
+0 0 0 0 0 3 5 5 1.07121426428143
+0 0 0 0 0 4 5 5 1.36656503687164
+0 0 0 0 0 5 5 5 1.66358047596141
+0 0 0 0 0 6 5 5 1.9615045245933
+0 0 0 0 0 7 5 5 2.2599778759979
+0 0 0 0 0 8 5 5 2.5588083163848
+0 0 0 0 0 9 5 5 2.85788383248865
-"Time = 0.000000
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
-2.550000 2.5588083163848
-2.850000 2.8578838324886
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 0.259807621135332
+1 0 0 0 0 1 5 5 0.49749371855331
+1 0 0 0 0 2 5 5 0.779422863405995
+1 0 0 0 0 3 5 5 1.07121426428143
+1 0 0 0 0 4 5 5 1.36656503687164
+1 0 0 0 0 5 5 5 1.66358047596141
+1 0 0 0 0 6 5 5 1.9615045245933
+1 0 0 0 0 7 5 5 2.2599778759979
+1 0 0 0 0 8 5 5 2.5588083163848
+1 0 0 0 0 9 5 5 2.85788383248865
+
-"Time = 1.000000
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
-2.550000 2.5588083163848
-2.850000 2.8578838324886
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/spher3d_r.yl b/CarpetAttic/Cart3dTest/test/symmetric-x/spher3d_r.yl
index 2865c92e4..2a740f6bc 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/spher3d_r.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/spher3d_r.yl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r y (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 1.36656503687164
+0 0 0 0 0 0 1 5 1.07121426428143
+0 0 0 0 0 0 2 5 0.779422863405995
+0 0 0 0 0 0 3 5 0.49749371855331
+0 0 0 0 0 0 4 5 0.259807621135332
+0 0 0 0 0 0 5 5 0.259807621135332
+0 0 0 0 0 0 6 5 0.49749371855331
+0 0 0 0 0 0 7 5 0.779422863405995
+0 0 0 0 0 0 8 5 1.07121426428143
+0 0 0 0 0 0 9 5 1.36656503687164
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 1.36656503687164
+1 0 0 0 0 0 1 5 1.07121426428143
+1 0 0 0 0 0 2 5 0.779422863405995
+1 0 0 0 0 0 3 5 0.49749371855331
+1 0 0 0 0 0 4 5 0.259807621135332
+1 0 0 0 0 0 5 5 0.259807621135332
+1 0 0 0 0 0 6 5 0.49749371855331
+1 0 0 0 0 0 7 5 0.779422863405995
+1 0 0 0 0 0 8 5 1.07121426428143
+1 0 0 0 0 0 9 5 1.36656503687164
+
-"Time = 1.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/spher3d_r.zl b/CarpetAttic/Cart3dTest/test/symmetric-x/spher3d_r.zl
index 2865c92e4..b666c616d 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/spher3d_r.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/spher3d_r.zl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r z (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 1.36656503687164
+0 0 0 0 0 0 5 1 1.07121426428143
+0 0 0 0 0 0 5 2 0.779422863405995
+0 0 0 0 0 0 5 3 0.49749371855331
+0 0 0 0 0 0 5 4 0.259807621135332
+0 0 0 0 0 0 5 5 0.259807621135332
+0 0 0 0 0 0 5 6 0.49749371855331
+0 0 0 0 0 0 5 7 0.779422863405995
+0 0 0 0 0 0 5 8 1.07121426428143
+0 0 0 0 0 0 5 9 1.36656503687164
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 1.36656503687164
+1 0 0 0 0 0 5 1 1.07121426428143
+1 0 0 0 0 0 5 2 0.779422863405995
+1 0 0 0 0 0 5 3 0.49749371855331
+1 0 0 0 0 0 5 4 0.259807621135332
+1 0 0 0 0 0 5 5 0.259807621135332
+1 0 0 0 0 0 5 6 0.49749371855331
+1 0 0 0 0 0 5 7 0.779422863405995
+1 0 0 0 0 0 5 8 1.07121426428143
+1 0 0 0 0 0 5 9 1.36656503687164
+
-"Time = 1.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/txx.xl b/CarpetAttic/Cart3dTest/test/symmetric-x/txx.xl
index 92a8f622a..ec49b7513 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/txx.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/txx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx x (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 21000505
+0 0 0 0 0 1 5 5 21010505
+0 0 0 0 0 2 5 5 21020505
+0 0 0 0 0 3 5 5 21030505
+0 0 0 0 0 4 5 5 21040505
+0 0 0 0 0 5 5 5 21050505
+0 0 0 0 0 6 5 5 21060505
+0 0 0 0 0 7 5 5 21070505
+0 0 0 0 0 8 5 5 21080505
+0 0 0 0 0 9 5 5 21090505
-"Time = 0.000000
-0.150000 21000404.0000000000000
-0.450000 21010404.0000000000000
-0.750000 21020404.0000000000000
-1.050000 21030404.0000000000000
-1.350000 21040404.0000000000000
-1.650000 21050404.0000000000000
-1.950000 21060404.0000000000000
-2.250000 21070404.0000000000000
-2.550000 21080404.0000000000000
-2.850000 21090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 21000505
+1 0 0 0 0 1 5 5 21010505
+1 0 0 0 0 2 5 5 21020505
+1 0 0 0 0 3 5 5 21030505
+1 0 0 0 0 4 5 5 21040505
+1 0 0 0 0 5 5 5 21050505
+1 0 0 0 0 6 5 5 21060505
+1 0 0 0 0 7 5 5 21070505
+1 0 0 0 0 8 5 5 21080505
+1 0 0 0 0 9 5 5 21090505
+
-"Time = 1.000000
-0.150000 21000404.0000000000000
-0.450000 21010404.0000000000000
-0.750000 21020404.0000000000000
-1.050000 21030404.0000000000000
-1.350000 21040404.0000000000000
-1.650000 21050404.0000000000000
-1.950000 21060404.0000000000000
-2.250000 21070404.0000000000000
-2.550000 21080404.0000000000000
-2.850000 21090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/txx.yl b/CarpetAttic/Cart3dTest/test/symmetric-x/txx.yl
index 4ca61fdd8..7fb822a49 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/txx.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/txx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx y (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 21000005
+0 0 0 0 0 0 1 5 21000105
+0 0 0 0 0 0 2 5 21000205
+0 0 0 0 0 0 3 5 21000305
+0 0 0 0 0 0 4 5 21000405
+0 0 0 0 0 0 5 5 21000505
+0 0 0 0 0 0 6 5 21000605
+0 0 0 0 0 0 7 5 21000705
+0 0 0 0 0 0 8 5 21000805
+0 0 0 0 0 0 9 5 21000905
-"Time = 0.000000
--1.350000 21000004.0000000000000
--1.050000 21000104.0000000000000
--0.750000 21000204.0000000000000
--0.450000 21000304.0000000000000
--0.150000 21000404.0000000000000
-0.150000 21000504.0000000000000
-0.450000 21000604.0000000000000
-0.750000 21000704.0000000000000
-1.050000 21000804.0000000000000
-1.350000 21000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 21000005
+1 0 0 0 0 0 1 5 21000105
+1 0 0 0 0 0 2 5 21000205
+1 0 0 0 0 0 3 5 21000305
+1 0 0 0 0 0 4 5 21000405
+1 0 0 0 0 0 5 5 21000505
+1 0 0 0 0 0 6 5 21000605
+1 0 0 0 0 0 7 5 21000705
+1 0 0 0 0 0 8 5 21000805
+1 0 0 0 0 0 9 5 21000905
+
-"Time = 1.000000
--1.350000 21000004.0000000000000
--1.050000 21000104.0000000000000
--0.750000 21000204.0000000000000
--0.450000 21000304.0000000000000
--0.150000 21000404.0000000000000
-0.150000 21000504.0000000000000
-0.450000 21000604.0000000000000
-0.750000 21000704.0000000000000
-1.050000 21000804.0000000000000
-1.350000 21000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/txx.zl b/CarpetAttic/Cart3dTest/test/symmetric-x/txx.zl
index 1f8b15e6c..b7965e31d 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/txx.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/txx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx z (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 21000500
+0 0 0 0 0 0 5 1 21000501
+0 0 0 0 0 0 5 2 21000502
+0 0 0 0 0 0 5 3 21000503
+0 0 0 0 0 0 5 4 21000504
+0 0 0 0 0 0 5 5 21000505
+0 0 0 0 0 0 5 6 21000506
+0 0 0 0 0 0 5 7 21000507
+0 0 0 0 0 0 5 8 21000508
+0 0 0 0 0 0 5 9 21000509
-"Time = 0.000000
--1.350000 21000400.0000000000000
--1.050000 21000401.0000000000000
--0.750000 21000402.0000000000000
--0.450000 21000403.0000000000000
--0.150000 21000404.0000000000000
-0.150000 21000405.0000000000000
-0.450000 21000406.0000000000000
-0.750000 21000407.0000000000000
-1.050000 21000408.0000000000000
-1.350000 21000409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 21000500
+1 0 0 0 0 0 5 1 21000501
+1 0 0 0 0 0 5 2 21000502
+1 0 0 0 0 0 5 3 21000503
+1 0 0 0 0 0 5 4 21000504
+1 0 0 0 0 0 5 5 21000505
+1 0 0 0 0 0 5 6 21000506
+1 0 0 0 0 0 5 7 21000507
+1 0 0 0 0 0 5 8 21000508
+1 0 0 0 0 0 5 9 21000509
+
-"Time = 1.000000
--1.350000 21000400.0000000000000
--1.050000 21000401.0000000000000
--0.750000 21000402.0000000000000
--0.450000 21000403.0000000000000
--0.150000 21000404.0000000000000
-0.150000 21000405.0000000000000
-0.450000 21000406.0000000000000
-0.750000 21000407.0000000000000
-1.050000 21000408.0000000000000
-1.350000 21000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/txy.xl b/CarpetAttic/Cart3dTest/test/symmetric-x/txy.xl
index 5c24358a4..c0a04db3d 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/txy.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/txy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy x (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 22000505
+0 0 0 0 0 1 5 5 22010505
+0 0 0 0 0 2 5 5 22020505
+0 0 0 0 0 3 5 5 22030505
+0 0 0 0 0 4 5 5 22040505
+0 0 0 0 0 5 5 5 22050505
+0 0 0 0 0 6 5 5 22060505
+0 0 0 0 0 7 5 5 22070505
+0 0 0 0 0 8 5 5 22080505
+0 0 0 0 0 9 5 5 22090505
-"Time = 0.000000
-0.150000 22000404.0000000000000
-0.450000 22010404.0000000000000
-0.750000 22020404.0000000000000
-1.050000 22030404.0000000000000
-1.350000 22040404.0000000000000
-1.650000 22050404.0000000000000
-1.950000 22060404.0000000000000
-2.250000 22070404.0000000000000
-2.550000 22080404.0000000000000
-2.850000 22090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 22000505
+1 0 0 0 0 1 5 5 22010505
+1 0 0 0 0 2 5 5 22020505
+1 0 0 0 0 3 5 5 22030505
+1 0 0 0 0 4 5 5 22040505
+1 0 0 0 0 5 5 5 22050505
+1 0 0 0 0 6 5 5 22060505
+1 0 0 0 0 7 5 5 22070505
+1 0 0 0 0 8 5 5 22080505
+1 0 0 0 0 9 5 5 22090505
+
-"Time = 1.000000
-0.150000 22000404.0000000000000
-0.450000 22010404.0000000000000
-0.750000 22020404.0000000000000
-1.050000 22030404.0000000000000
-1.350000 22040404.0000000000000
-1.650000 22050404.0000000000000
-1.950000 22060404.0000000000000
-2.250000 22070404.0000000000000
-2.550000 22080404.0000000000000
-2.850000 22090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/txy.yl b/CarpetAttic/Cart3dTest/test/symmetric-x/txy.yl
index 5f06abd42..e47c1bb97 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/txy.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/txy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy y (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 22000005
+0 0 0 0 0 0 1 5 22000105
+0 0 0 0 0 0 2 5 22000205
+0 0 0 0 0 0 3 5 22000305
+0 0 0 0 0 0 4 5 22000405
+0 0 0 0 0 0 5 5 22000505
+0 0 0 0 0 0 6 5 22000605
+0 0 0 0 0 0 7 5 22000705
+0 0 0 0 0 0 8 5 22000805
+0 0 0 0 0 0 9 5 22000905
-"Time = 0.000000
--1.350000 22000004.0000000000000
--1.050000 22000104.0000000000000
--0.750000 22000204.0000000000000
--0.450000 22000304.0000000000000
--0.150000 22000404.0000000000000
-0.150000 22000504.0000000000000
-0.450000 22000604.0000000000000
-0.750000 22000704.0000000000000
-1.050000 22000804.0000000000000
-1.350000 22000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 22000005
+1 0 0 0 0 0 1 5 22000105
+1 0 0 0 0 0 2 5 22000205
+1 0 0 0 0 0 3 5 22000305
+1 0 0 0 0 0 4 5 22000405
+1 0 0 0 0 0 5 5 22000505
+1 0 0 0 0 0 6 5 22000605
+1 0 0 0 0 0 7 5 22000705
+1 0 0 0 0 0 8 5 22000805
+1 0 0 0 0 0 9 5 22000905
+
-"Time = 1.000000
--1.350000 22000004.0000000000000
--1.050000 22000104.0000000000000
--0.750000 22000204.0000000000000
--0.450000 22000304.0000000000000
--0.150000 22000404.0000000000000
-0.150000 22000504.0000000000000
-0.450000 22000604.0000000000000
-0.750000 22000704.0000000000000
-1.050000 22000804.0000000000000
-1.350000 22000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/txy.zl b/CarpetAttic/Cart3dTest/test/symmetric-x/txy.zl
index 6c9d70bdb..21598136a 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/txy.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/txy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy z (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 22000500
+0 0 0 0 0 0 5 1 22000501
+0 0 0 0 0 0 5 2 22000502
+0 0 0 0 0 0 5 3 22000503
+0 0 0 0 0 0 5 4 22000504
+0 0 0 0 0 0 5 5 22000505
+0 0 0 0 0 0 5 6 22000506
+0 0 0 0 0 0 5 7 22000507
+0 0 0 0 0 0 5 8 22000508
+0 0 0 0 0 0 5 9 22000509
-"Time = 0.000000
--1.350000 22000400.0000000000000
--1.050000 22000401.0000000000000
--0.750000 22000402.0000000000000
--0.450000 22000403.0000000000000
--0.150000 22000404.0000000000000
-0.150000 22000405.0000000000000
-0.450000 22000406.0000000000000
-0.750000 22000407.0000000000000
-1.050000 22000408.0000000000000
-1.350000 22000409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 22000500
+1 0 0 0 0 0 5 1 22000501
+1 0 0 0 0 0 5 2 22000502
+1 0 0 0 0 0 5 3 22000503
+1 0 0 0 0 0 5 4 22000504
+1 0 0 0 0 0 5 5 22000505
+1 0 0 0 0 0 5 6 22000506
+1 0 0 0 0 0 5 7 22000507
+1 0 0 0 0 0 5 8 22000508
+1 0 0 0 0 0 5 9 22000509
+
-"Time = 1.000000
--1.350000 22000400.0000000000000
--1.050000 22000401.0000000000000
--0.750000 22000402.0000000000000
--0.450000 22000403.0000000000000
--0.150000 22000404.0000000000000
-0.150000 22000405.0000000000000
-0.450000 22000406.0000000000000
-0.750000 22000407.0000000000000
-1.050000 22000408.0000000000000
-1.350000 22000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/txz.xl b/CarpetAttic/Cart3dTest/test/symmetric-x/txz.xl
index 58c9f0d68..ef056f783 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/txz.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/txz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz x (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 23000505
+0 0 0 0 0 1 5 5 23010505
+0 0 0 0 0 2 5 5 23020505
+0 0 0 0 0 3 5 5 23030505
+0 0 0 0 0 4 5 5 23040505
+0 0 0 0 0 5 5 5 23050505
+0 0 0 0 0 6 5 5 23060505
+0 0 0 0 0 7 5 5 23070505
+0 0 0 0 0 8 5 5 23080505
+0 0 0 0 0 9 5 5 23090505
-"Time = 0.000000
-0.150000 23000404.0000000000000
-0.450000 23010404.0000000000000
-0.750000 23020404.0000000000000
-1.050000 23030404.0000000000000
-1.350000 23040404.0000000000000
-1.650000 23050404.0000000000000
-1.950000 23060404.0000000000000
-2.250000 23070404.0000000000000
-2.550000 23080404.0000000000000
-2.850000 23090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 23000505
+1 0 0 0 0 1 5 5 23010505
+1 0 0 0 0 2 5 5 23020505
+1 0 0 0 0 3 5 5 23030505
+1 0 0 0 0 4 5 5 23040505
+1 0 0 0 0 5 5 5 23050505
+1 0 0 0 0 6 5 5 23060505
+1 0 0 0 0 7 5 5 23070505
+1 0 0 0 0 8 5 5 23080505
+1 0 0 0 0 9 5 5 23090505
+
-"Time = 1.000000
-0.150000 23000404.0000000000000
-0.450000 23010404.0000000000000
-0.750000 23020404.0000000000000
-1.050000 23030404.0000000000000
-1.350000 23040404.0000000000000
-1.650000 23050404.0000000000000
-1.950000 23060404.0000000000000
-2.250000 23070404.0000000000000
-2.550000 23080404.0000000000000
-2.850000 23090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/txz.yl b/CarpetAttic/Cart3dTest/test/symmetric-x/txz.yl
index 2bee5bf7e..8f326d9bd 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/txz.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/txz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz y (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 23000005
+0 0 0 0 0 0 1 5 23000105
+0 0 0 0 0 0 2 5 23000205
+0 0 0 0 0 0 3 5 23000305
+0 0 0 0 0 0 4 5 23000405
+0 0 0 0 0 0 5 5 23000505
+0 0 0 0 0 0 6 5 23000605
+0 0 0 0 0 0 7 5 23000705
+0 0 0 0 0 0 8 5 23000805
+0 0 0 0 0 0 9 5 23000905
-"Time = 0.000000
--1.350000 23000004.0000000000000
--1.050000 23000104.0000000000000
--0.750000 23000204.0000000000000
--0.450000 23000304.0000000000000
--0.150000 23000404.0000000000000
-0.150000 23000504.0000000000000
-0.450000 23000604.0000000000000
-0.750000 23000704.0000000000000
-1.050000 23000804.0000000000000
-1.350000 23000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 23000005
+1 0 0 0 0 0 1 5 23000105
+1 0 0 0 0 0 2 5 23000205
+1 0 0 0 0 0 3 5 23000305
+1 0 0 0 0 0 4 5 23000405
+1 0 0 0 0 0 5 5 23000505
+1 0 0 0 0 0 6 5 23000605
+1 0 0 0 0 0 7 5 23000705
+1 0 0 0 0 0 8 5 23000805
+1 0 0 0 0 0 9 5 23000905
+
-"Time = 1.000000
--1.350000 23000004.0000000000000
--1.050000 23000104.0000000000000
--0.750000 23000204.0000000000000
--0.450000 23000304.0000000000000
--0.150000 23000404.0000000000000
-0.150000 23000504.0000000000000
-0.450000 23000604.0000000000000
-0.750000 23000704.0000000000000
-1.050000 23000804.0000000000000
-1.350000 23000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/txz.zl b/CarpetAttic/Cart3dTest/test/symmetric-x/txz.zl
index 63124ceed..632e3eb31 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/txz.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/txz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz z (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 23000500
+0 0 0 0 0 0 5 1 23000501
+0 0 0 0 0 0 5 2 23000502
+0 0 0 0 0 0 5 3 23000503
+0 0 0 0 0 0 5 4 23000504
+0 0 0 0 0 0 5 5 23000505
+0 0 0 0 0 0 5 6 23000506
+0 0 0 0 0 0 5 7 23000507
+0 0 0 0 0 0 5 8 23000508
+0 0 0 0 0 0 5 9 23000509
-"Time = 0.000000
--1.350000 23000400.0000000000000
--1.050000 23000401.0000000000000
--0.750000 23000402.0000000000000
--0.450000 23000403.0000000000000
--0.150000 23000404.0000000000000
-0.150000 23000405.0000000000000
-0.450000 23000406.0000000000000
-0.750000 23000407.0000000000000
-1.050000 23000408.0000000000000
-1.350000 23000409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 23000500
+1 0 0 0 0 0 5 1 23000501
+1 0 0 0 0 0 5 2 23000502
+1 0 0 0 0 0 5 3 23000503
+1 0 0 0 0 0 5 4 23000504
+1 0 0 0 0 0 5 5 23000505
+1 0 0 0 0 0 5 6 23000506
+1 0 0 0 0 0 5 7 23000507
+1 0 0 0 0 0 5 8 23000508
+1 0 0 0 0 0 5 9 23000509
+
-"Time = 1.000000
--1.350000 23000400.0000000000000
--1.050000 23000401.0000000000000
--0.750000 23000402.0000000000000
--0.450000 23000403.0000000000000
--0.150000 23000404.0000000000000
-0.150000 23000405.0000000000000
-0.450000 23000406.0000000000000
-0.750000 23000407.0000000000000
-1.050000 23000408.0000000000000
-1.350000 23000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/tyy.xl b/CarpetAttic/Cart3dTest/test/symmetric-x/tyy.xl
index b51d2c6d9..6a8ea71c4 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/tyy.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/tyy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy x (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 24000505
+0 0 0 0 0 1 5 5 24010505
+0 0 0 0 0 2 5 5 24020505
+0 0 0 0 0 3 5 5 24030505
+0 0 0 0 0 4 5 5 24040505
+0 0 0 0 0 5 5 5 24050505
+0 0 0 0 0 6 5 5 24060505
+0 0 0 0 0 7 5 5 24070505
+0 0 0 0 0 8 5 5 24080505
+0 0 0 0 0 9 5 5 24090505
-"Time = 0.000000
-0.150000 24000404.0000000000000
-0.450000 24010404.0000000000000
-0.750000 24020404.0000000000000
-1.050000 24030404.0000000000000
-1.350000 24040404.0000000000000
-1.650000 24050404.0000000000000
-1.950000 24060404.0000000000000
-2.250000 24070404.0000000000000
-2.550000 24080404.0000000000000
-2.850000 24090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 24000505
+1 0 0 0 0 1 5 5 24010505
+1 0 0 0 0 2 5 5 24020505
+1 0 0 0 0 3 5 5 24030505
+1 0 0 0 0 4 5 5 24040505
+1 0 0 0 0 5 5 5 24050505
+1 0 0 0 0 6 5 5 24060505
+1 0 0 0 0 7 5 5 24070505
+1 0 0 0 0 8 5 5 24080505
+1 0 0 0 0 9 5 5 24090505
+
-"Time = 1.000000
-0.150000 24000404.0000000000000
-0.450000 24010404.0000000000000
-0.750000 24020404.0000000000000
-1.050000 24030404.0000000000000
-1.350000 24040404.0000000000000
-1.650000 24050404.0000000000000
-1.950000 24060404.0000000000000
-2.250000 24070404.0000000000000
-2.550000 24080404.0000000000000
-2.850000 24090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/tyy.yl b/CarpetAttic/Cart3dTest/test/symmetric-x/tyy.yl
index 6afb6d96b..02b77f853 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/tyy.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/tyy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy y (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 24000005
+0 0 0 0 0 0 1 5 24000105
+0 0 0 0 0 0 2 5 24000205
+0 0 0 0 0 0 3 5 24000305
+0 0 0 0 0 0 4 5 24000405
+0 0 0 0 0 0 5 5 24000505
+0 0 0 0 0 0 6 5 24000605
+0 0 0 0 0 0 7 5 24000705
+0 0 0 0 0 0 8 5 24000805
+0 0 0 0 0 0 9 5 24000905
-"Time = 0.000000
--1.350000 24000004.0000000000000
--1.050000 24000104.0000000000000
--0.750000 24000204.0000000000000
--0.450000 24000304.0000000000000
--0.150000 24000404.0000000000000
-0.150000 24000504.0000000000000
-0.450000 24000604.0000000000000
-0.750000 24000704.0000000000000
-1.050000 24000804.0000000000000
-1.350000 24000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 24000005
+1 0 0 0 0 0 1 5 24000105
+1 0 0 0 0 0 2 5 24000205
+1 0 0 0 0 0 3 5 24000305
+1 0 0 0 0 0 4 5 24000405
+1 0 0 0 0 0 5 5 24000505
+1 0 0 0 0 0 6 5 24000605
+1 0 0 0 0 0 7 5 24000705
+1 0 0 0 0 0 8 5 24000805
+1 0 0 0 0 0 9 5 24000905
+
-"Time = 1.000000
--1.350000 24000004.0000000000000
--1.050000 24000104.0000000000000
--0.750000 24000204.0000000000000
--0.450000 24000304.0000000000000
--0.150000 24000404.0000000000000
-0.150000 24000504.0000000000000
-0.450000 24000604.0000000000000
-0.750000 24000704.0000000000000
-1.050000 24000804.0000000000000
-1.350000 24000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/tyy.zl b/CarpetAttic/Cart3dTest/test/symmetric-x/tyy.zl
index a090e29e8..c69cf891e 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/tyy.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/tyy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy z (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 24000500
+0 0 0 0 0 0 5 1 24000501
+0 0 0 0 0 0 5 2 24000502
+0 0 0 0 0 0 5 3 24000503
+0 0 0 0 0 0 5 4 24000504
+0 0 0 0 0 0 5 5 24000505
+0 0 0 0 0 0 5 6 24000506
+0 0 0 0 0 0 5 7 24000507
+0 0 0 0 0 0 5 8 24000508
+0 0 0 0 0 0 5 9 24000509
-"Time = 0.000000
--1.350000 24000400.0000000000000
--1.050000 24000401.0000000000000
--0.750000 24000402.0000000000000
--0.450000 24000403.0000000000000
--0.150000 24000404.0000000000000
-0.150000 24000405.0000000000000
-0.450000 24000406.0000000000000
-0.750000 24000407.0000000000000
-1.050000 24000408.0000000000000
-1.350000 24000409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 24000500
+1 0 0 0 0 0 5 1 24000501
+1 0 0 0 0 0 5 2 24000502
+1 0 0 0 0 0 5 3 24000503
+1 0 0 0 0 0 5 4 24000504
+1 0 0 0 0 0 5 5 24000505
+1 0 0 0 0 0 5 6 24000506
+1 0 0 0 0 0 5 7 24000507
+1 0 0 0 0 0 5 8 24000508
+1 0 0 0 0 0 5 9 24000509
+
-"Time = 1.000000
--1.350000 24000400.0000000000000
--1.050000 24000401.0000000000000
--0.750000 24000402.0000000000000
--0.450000 24000403.0000000000000
--0.150000 24000404.0000000000000
-0.150000 24000405.0000000000000
-0.450000 24000406.0000000000000
-0.750000 24000407.0000000000000
-1.050000 24000408.0000000000000
-1.350000 24000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/tyz.xl b/CarpetAttic/Cart3dTest/test/symmetric-x/tyz.xl
index 67bb1e4bd..011e5ce29 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/tyz.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/tyz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz x (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 25000505
+0 0 0 0 0 1 5 5 25010505
+0 0 0 0 0 2 5 5 25020505
+0 0 0 0 0 3 5 5 25030505
+0 0 0 0 0 4 5 5 25040505
+0 0 0 0 0 5 5 5 25050505
+0 0 0 0 0 6 5 5 25060505
+0 0 0 0 0 7 5 5 25070505
+0 0 0 0 0 8 5 5 25080505
+0 0 0 0 0 9 5 5 25090505
-"Time = 0.000000
-0.150000 25000404.0000000000000
-0.450000 25010404.0000000000000
-0.750000 25020404.0000000000000
-1.050000 25030404.0000000000000
-1.350000 25040404.0000000000000
-1.650000 25050404.0000000000000
-1.950000 25060404.0000000000000
-2.250000 25070404.0000000000000
-2.550000 25080404.0000000000000
-2.850000 25090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 25000505
+1 0 0 0 0 1 5 5 25010505
+1 0 0 0 0 2 5 5 25020505
+1 0 0 0 0 3 5 5 25030505
+1 0 0 0 0 4 5 5 25040505
+1 0 0 0 0 5 5 5 25050505
+1 0 0 0 0 6 5 5 25060505
+1 0 0 0 0 7 5 5 25070505
+1 0 0 0 0 8 5 5 25080505
+1 0 0 0 0 9 5 5 25090505
+
-"Time = 1.000000
-0.150000 25000404.0000000000000
-0.450000 25010404.0000000000000
-0.750000 25020404.0000000000000
-1.050000 25030404.0000000000000
-1.350000 25040404.0000000000000
-1.650000 25050404.0000000000000
-1.950000 25060404.0000000000000
-2.250000 25070404.0000000000000
-2.550000 25080404.0000000000000
-2.850000 25090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/tyz.yl b/CarpetAttic/Cart3dTest/test/symmetric-x/tyz.yl
index 1075c982a..e5bf5759e 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/tyz.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/tyz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz y (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 25000005
+0 0 0 0 0 0 1 5 25000105
+0 0 0 0 0 0 2 5 25000205
+0 0 0 0 0 0 3 5 25000305
+0 0 0 0 0 0 4 5 25000405
+0 0 0 0 0 0 5 5 25000505
+0 0 0 0 0 0 6 5 25000605
+0 0 0 0 0 0 7 5 25000705
+0 0 0 0 0 0 8 5 25000805
+0 0 0 0 0 0 9 5 25000905
-"Time = 0.000000
--1.350000 25000004.0000000000000
--1.050000 25000104.0000000000000
--0.750000 25000204.0000000000000
--0.450000 25000304.0000000000000
--0.150000 25000404.0000000000000
-0.150000 25000504.0000000000000
-0.450000 25000604.0000000000000
-0.750000 25000704.0000000000000
-1.050000 25000804.0000000000000
-1.350000 25000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 25000005
+1 0 0 0 0 0 1 5 25000105
+1 0 0 0 0 0 2 5 25000205
+1 0 0 0 0 0 3 5 25000305
+1 0 0 0 0 0 4 5 25000405
+1 0 0 0 0 0 5 5 25000505
+1 0 0 0 0 0 6 5 25000605
+1 0 0 0 0 0 7 5 25000705
+1 0 0 0 0 0 8 5 25000805
+1 0 0 0 0 0 9 5 25000905
+
-"Time = 1.000000
--1.350000 25000004.0000000000000
--1.050000 25000104.0000000000000
--0.750000 25000204.0000000000000
--0.450000 25000304.0000000000000
--0.150000 25000404.0000000000000
-0.150000 25000504.0000000000000
-0.450000 25000604.0000000000000
-0.750000 25000704.0000000000000
-1.050000 25000804.0000000000000
-1.350000 25000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/tyz.zl b/CarpetAttic/Cart3dTest/test/symmetric-x/tyz.zl
index 0595206c6..9a2bfdd68 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/tyz.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/tyz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz z (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 25000500
+0 0 0 0 0 0 5 1 25000501
+0 0 0 0 0 0 5 2 25000502
+0 0 0 0 0 0 5 3 25000503
+0 0 0 0 0 0 5 4 25000504
+0 0 0 0 0 0 5 5 25000505
+0 0 0 0 0 0 5 6 25000506
+0 0 0 0 0 0 5 7 25000507
+0 0 0 0 0 0 5 8 25000508
+0 0 0 0 0 0 5 9 25000509
-"Time = 0.000000
--1.350000 25000400.0000000000000
--1.050000 25000401.0000000000000
--0.750000 25000402.0000000000000
--0.450000 25000403.0000000000000
--0.150000 25000404.0000000000000
-0.150000 25000405.0000000000000
-0.450000 25000406.0000000000000
-0.750000 25000407.0000000000000
-1.050000 25000408.0000000000000
-1.350000 25000409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 25000500
+1 0 0 0 0 0 5 1 25000501
+1 0 0 0 0 0 5 2 25000502
+1 0 0 0 0 0 5 3 25000503
+1 0 0 0 0 0 5 4 25000504
+1 0 0 0 0 0 5 5 25000505
+1 0 0 0 0 0 5 6 25000506
+1 0 0 0 0 0 5 7 25000507
+1 0 0 0 0 0 5 8 25000508
+1 0 0 0 0 0 5 9 25000509
+
-"Time = 1.000000
--1.350000 25000400.0000000000000
--1.050000 25000401.0000000000000
--0.750000 25000402.0000000000000
--0.450000 25000403.0000000000000
--0.150000 25000404.0000000000000
-0.150000 25000405.0000000000000
-0.450000 25000406.0000000000000
-0.750000 25000407.0000000000000
-1.050000 25000408.0000000000000
-1.350000 25000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/tzz.xl b/CarpetAttic/Cart3dTest/test/symmetric-x/tzz.xl
index f1fd35658..0035c4de3 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/tzz.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/tzz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz x (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 26000505
+0 0 0 0 0 1 5 5 26010505
+0 0 0 0 0 2 5 5 26020505
+0 0 0 0 0 3 5 5 26030505
+0 0 0 0 0 4 5 5 26040505
+0 0 0 0 0 5 5 5 26050505
+0 0 0 0 0 6 5 5 26060505
+0 0 0 0 0 7 5 5 26070505
+0 0 0 0 0 8 5 5 26080505
+0 0 0 0 0 9 5 5 26090505
-"Time = 0.000000
-0.150000 26000404.0000000000000
-0.450000 26010404.0000000000000
-0.750000 26020404.0000000000000
-1.050000 26030404.0000000000000
-1.350000 26040404.0000000000000
-1.650000 26050404.0000000000000
-1.950000 26060404.0000000000000
-2.250000 26070404.0000000000000
-2.550000 26080404.0000000000000
-2.850000 26090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 26000505
+1 0 0 0 0 1 5 5 26010505
+1 0 0 0 0 2 5 5 26020505
+1 0 0 0 0 3 5 5 26030505
+1 0 0 0 0 4 5 5 26040505
+1 0 0 0 0 5 5 5 26050505
+1 0 0 0 0 6 5 5 26060505
+1 0 0 0 0 7 5 5 26070505
+1 0 0 0 0 8 5 5 26080505
+1 0 0 0 0 9 5 5 26090505
+
-"Time = 1.000000
-0.150000 26000404.0000000000000
-0.450000 26010404.0000000000000
-0.750000 26020404.0000000000000
-1.050000 26030404.0000000000000
-1.350000 26040404.0000000000000
-1.650000 26050404.0000000000000
-1.950000 26060404.0000000000000
-2.250000 26070404.0000000000000
-2.550000 26080404.0000000000000
-2.850000 26090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/tzz.yl b/CarpetAttic/Cart3dTest/test/symmetric-x/tzz.yl
index 5eb3cfea1..e6017cc56 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/tzz.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/tzz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz y (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 26000005
+0 0 0 0 0 0 1 5 26000105
+0 0 0 0 0 0 2 5 26000205
+0 0 0 0 0 0 3 5 26000305
+0 0 0 0 0 0 4 5 26000405
+0 0 0 0 0 0 5 5 26000505
+0 0 0 0 0 0 6 5 26000605
+0 0 0 0 0 0 7 5 26000705
+0 0 0 0 0 0 8 5 26000805
+0 0 0 0 0 0 9 5 26000905
-"Time = 0.000000
--1.350000 26000004.0000000000000
--1.050000 26000104.0000000000000
--0.750000 26000204.0000000000000
--0.450000 26000304.0000000000000
--0.150000 26000404.0000000000000
-0.150000 26000504.0000000000000
-0.450000 26000604.0000000000000
-0.750000 26000704.0000000000000
-1.050000 26000804.0000000000000
-1.350000 26000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 26000005
+1 0 0 0 0 0 1 5 26000105
+1 0 0 0 0 0 2 5 26000205
+1 0 0 0 0 0 3 5 26000305
+1 0 0 0 0 0 4 5 26000405
+1 0 0 0 0 0 5 5 26000505
+1 0 0 0 0 0 6 5 26000605
+1 0 0 0 0 0 7 5 26000705
+1 0 0 0 0 0 8 5 26000805
+1 0 0 0 0 0 9 5 26000905
+
-"Time = 1.000000
--1.350000 26000004.0000000000000
--1.050000 26000104.0000000000000
--0.750000 26000204.0000000000000
--0.450000 26000304.0000000000000
--0.150000 26000404.0000000000000
-0.150000 26000504.0000000000000
-0.450000 26000604.0000000000000
-0.750000 26000704.0000000000000
-1.050000 26000804.0000000000000
-1.350000 26000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/tzz.zl b/CarpetAttic/Cart3dTest/test/symmetric-x/tzz.zl
index 55ccc5b90..797e4e57a 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/tzz.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/tzz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz z (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 26000500
+0 0 0 0 0 0 5 1 26000501
+0 0 0 0 0 0 5 2 26000502
+0 0 0 0 0 0 5 3 26000503
+0 0 0 0 0 0 5 4 26000504
+0 0 0 0 0 0 5 5 26000505
+0 0 0 0 0 0 5 6 26000506
+0 0 0 0 0 0 5 7 26000507
+0 0 0 0 0 0 5 8 26000508
+0 0 0 0 0 0 5 9 26000509
-"Time = 0.000000
--1.350000 26000400.0000000000000
--1.050000 26000401.0000000000000
--0.750000 26000402.0000000000000
--0.450000 26000403.0000000000000
--0.150000 26000404.0000000000000
-0.150000 26000405.0000000000000
-0.450000 26000406.0000000000000
-0.750000 26000407.0000000000000
-1.050000 26000408.0000000000000
-1.350000 26000409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 26000500
+1 0 0 0 0 0 5 1 26000501
+1 0 0 0 0 0 5 2 26000502
+1 0 0 0 0 0 5 3 26000503
+1 0 0 0 0 0 5 4 26000504
+1 0 0 0 0 0 5 5 26000505
+1 0 0 0 0 0 5 6 26000506
+1 0 0 0 0 0 5 7 26000507
+1 0 0 0 0 0 5 8 26000508
+1 0 0 0 0 0 5 9 26000509
+
-"Time = 1.000000
--1.350000 26000400.0000000000000
--1.050000 26000401.0000000000000
--0.750000 26000402.0000000000000
--0.450000 26000403.0000000000000
--0.150000 26000404.0000000000000
-0.150000 26000405.0000000000000
-0.450000 26000406.0000000000000
-0.750000 26000407.0000000000000
-1.050000 26000408.0000000000000
-1.350000 26000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/vx.xl b/CarpetAttic/Cart3dTest/test/symmetric-x/vx.xl
index 548d3be5a..d4dafe57f 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/vx.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/vx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx x (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 11000505
+0 0 0 0 0 1 5 5 11010505
+0 0 0 0 0 2 5 5 11020505
+0 0 0 0 0 3 5 5 11030505
+0 0 0 0 0 4 5 5 11040505
+0 0 0 0 0 5 5 5 11050505
+0 0 0 0 0 6 5 5 11060505
+0 0 0 0 0 7 5 5 11070505
+0 0 0 0 0 8 5 5 11080505
+0 0 0 0 0 9 5 5 11090505
-"Time = 0.000000
-0.150000 11000404.0000000000000
-0.450000 11010404.0000000000000
-0.750000 11020404.0000000000000
-1.050000 11030404.0000000000000
-1.350000 11040404.0000000000000
-1.650000 11050404.0000000000000
-1.950000 11060404.0000000000000
-2.250000 11070404.0000000000000
-2.550000 11080404.0000000000000
-2.850000 11090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 11000505
+1 0 0 0 0 1 5 5 11010505
+1 0 0 0 0 2 5 5 11020505
+1 0 0 0 0 3 5 5 11030505
+1 0 0 0 0 4 5 5 11040505
+1 0 0 0 0 5 5 5 11050505
+1 0 0 0 0 6 5 5 11060505
+1 0 0 0 0 7 5 5 11070505
+1 0 0 0 0 8 5 5 11080505
+1 0 0 0 0 9 5 5 11090505
+
-"Time = 1.000000
-0.150000 11000404.0000000000000
-0.450000 11010404.0000000000000
-0.750000 11020404.0000000000000
-1.050000 11030404.0000000000000
-1.350000 11040404.0000000000000
-1.650000 11050404.0000000000000
-1.950000 11060404.0000000000000
-2.250000 11070404.0000000000000
-2.550000 11080404.0000000000000
-2.850000 11090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/vx.yl b/CarpetAttic/Cart3dTest/test/symmetric-x/vx.yl
index 25924dfde..406347a71 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/vx.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/vx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx y (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 11000005
+0 0 0 0 0 0 1 5 11000105
+0 0 0 0 0 0 2 5 11000205
+0 0 0 0 0 0 3 5 11000305
+0 0 0 0 0 0 4 5 11000405
+0 0 0 0 0 0 5 5 11000505
+0 0 0 0 0 0 6 5 11000605
+0 0 0 0 0 0 7 5 11000705
+0 0 0 0 0 0 8 5 11000805
+0 0 0 0 0 0 9 5 11000905
-"Time = 0.000000
--1.350000 11000004.0000000000000
--1.050000 11000104.0000000000000
--0.750000 11000204.0000000000000
--0.450000 11000304.0000000000000
--0.150000 11000404.0000000000000
-0.150000 11000504.0000000000000
-0.450000 11000604.0000000000000
-0.750000 11000704.0000000000000
-1.050000 11000804.0000000000000
-1.350000 11000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 11000005
+1 0 0 0 0 0 1 5 11000105
+1 0 0 0 0 0 2 5 11000205
+1 0 0 0 0 0 3 5 11000305
+1 0 0 0 0 0 4 5 11000405
+1 0 0 0 0 0 5 5 11000505
+1 0 0 0 0 0 6 5 11000605
+1 0 0 0 0 0 7 5 11000705
+1 0 0 0 0 0 8 5 11000805
+1 0 0 0 0 0 9 5 11000905
+
-"Time = 1.000000
--1.350000 11000004.0000000000000
--1.050000 11000104.0000000000000
--0.750000 11000204.0000000000000
--0.450000 11000304.0000000000000
--0.150000 11000404.0000000000000
-0.150000 11000504.0000000000000
-0.450000 11000604.0000000000000
-0.750000 11000704.0000000000000
-1.050000 11000804.0000000000000
-1.350000 11000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/vx.zl b/CarpetAttic/Cart3dTest/test/symmetric-x/vx.zl
index 809f188fd..d93054cf1 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/vx.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/vx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx z (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 11000500
+0 0 0 0 0 0 5 1 11000501
+0 0 0 0 0 0 5 2 11000502
+0 0 0 0 0 0 5 3 11000503
+0 0 0 0 0 0 5 4 11000504
+0 0 0 0 0 0 5 5 11000505
+0 0 0 0 0 0 5 6 11000506
+0 0 0 0 0 0 5 7 11000507
+0 0 0 0 0 0 5 8 11000508
+0 0 0 0 0 0 5 9 11000509
-"Time = 0.000000
--1.350000 11000400.0000000000000
--1.050000 11000401.0000000000000
--0.750000 11000402.0000000000000
--0.450000 11000403.0000000000000
--0.150000 11000404.0000000000000
-0.150000 11000405.0000000000000
-0.450000 11000406.0000000000000
-0.750000 11000407.0000000000000
-1.050000 11000408.0000000000000
-1.350000 11000409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 11000500
+1 0 0 0 0 0 5 1 11000501
+1 0 0 0 0 0 5 2 11000502
+1 0 0 0 0 0 5 3 11000503
+1 0 0 0 0 0 5 4 11000504
+1 0 0 0 0 0 5 5 11000505
+1 0 0 0 0 0 5 6 11000506
+1 0 0 0 0 0 5 7 11000507
+1 0 0 0 0 0 5 8 11000508
+1 0 0 0 0 0 5 9 11000509
+
-"Time = 1.000000
--1.350000 11000400.0000000000000
--1.050000 11000401.0000000000000
--0.750000 11000402.0000000000000
--0.450000 11000403.0000000000000
--0.150000 11000404.0000000000000
-0.150000 11000405.0000000000000
-0.450000 11000406.0000000000000
-0.750000 11000407.0000000000000
-1.050000 11000408.0000000000000
-1.350000 11000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/vy.xl b/CarpetAttic/Cart3dTest/test/symmetric-x/vy.xl
index d462c5c38..487f382f4 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/vy.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/vy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy x (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 12000505
+0 0 0 0 0 1 5 5 12010505
+0 0 0 0 0 2 5 5 12020505
+0 0 0 0 0 3 5 5 12030505
+0 0 0 0 0 4 5 5 12040505
+0 0 0 0 0 5 5 5 12050505
+0 0 0 0 0 6 5 5 12060505
+0 0 0 0 0 7 5 5 12070505
+0 0 0 0 0 8 5 5 12080505
+0 0 0 0 0 9 5 5 12090505
-"Time = 0.000000
-0.150000 12000404.0000000000000
-0.450000 12010404.0000000000000
-0.750000 12020404.0000000000000
-1.050000 12030404.0000000000000
-1.350000 12040404.0000000000000
-1.650000 12050404.0000000000000
-1.950000 12060404.0000000000000
-2.250000 12070404.0000000000000
-2.550000 12080404.0000000000000
-2.850000 12090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 12000505
+1 0 0 0 0 1 5 5 12010505
+1 0 0 0 0 2 5 5 12020505
+1 0 0 0 0 3 5 5 12030505
+1 0 0 0 0 4 5 5 12040505
+1 0 0 0 0 5 5 5 12050505
+1 0 0 0 0 6 5 5 12060505
+1 0 0 0 0 7 5 5 12070505
+1 0 0 0 0 8 5 5 12080505
+1 0 0 0 0 9 5 5 12090505
+
-"Time = 1.000000
-0.150000 12000404.0000000000000
-0.450000 12010404.0000000000000
-0.750000 12020404.0000000000000
-1.050000 12030404.0000000000000
-1.350000 12040404.0000000000000
-1.650000 12050404.0000000000000
-1.950000 12060404.0000000000000
-2.250000 12070404.0000000000000
-2.550000 12080404.0000000000000
-2.850000 12090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/vy.yl b/CarpetAttic/Cart3dTest/test/symmetric-x/vy.yl
index f4e360a01..04473dce8 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/vy.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/vy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy y (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 12000005
+0 0 0 0 0 0 1 5 12000105
+0 0 0 0 0 0 2 5 12000205
+0 0 0 0 0 0 3 5 12000305
+0 0 0 0 0 0 4 5 12000405
+0 0 0 0 0 0 5 5 12000505
+0 0 0 0 0 0 6 5 12000605
+0 0 0 0 0 0 7 5 12000705
+0 0 0 0 0 0 8 5 12000805
+0 0 0 0 0 0 9 5 12000905
-"Time = 0.000000
--1.350000 12000004.0000000000000
--1.050000 12000104.0000000000000
--0.750000 12000204.0000000000000
--0.450000 12000304.0000000000000
--0.150000 12000404.0000000000000
-0.150000 12000504.0000000000000
-0.450000 12000604.0000000000000
-0.750000 12000704.0000000000000
-1.050000 12000804.0000000000000
-1.350000 12000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 12000005
+1 0 0 0 0 0 1 5 12000105
+1 0 0 0 0 0 2 5 12000205
+1 0 0 0 0 0 3 5 12000305
+1 0 0 0 0 0 4 5 12000405
+1 0 0 0 0 0 5 5 12000505
+1 0 0 0 0 0 6 5 12000605
+1 0 0 0 0 0 7 5 12000705
+1 0 0 0 0 0 8 5 12000805
+1 0 0 0 0 0 9 5 12000905
+
-"Time = 1.000000
--1.350000 12000004.0000000000000
--1.050000 12000104.0000000000000
--0.750000 12000204.0000000000000
--0.450000 12000304.0000000000000
--0.150000 12000404.0000000000000
-0.150000 12000504.0000000000000
-0.450000 12000604.0000000000000
-0.750000 12000704.0000000000000
-1.050000 12000804.0000000000000
-1.350000 12000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/vy.zl b/CarpetAttic/Cart3dTest/test/symmetric-x/vy.zl
index c5203af42..f0106f3d1 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/vy.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/vy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy z (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 12000500
+0 0 0 0 0 0 5 1 12000501
+0 0 0 0 0 0 5 2 12000502
+0 0 0 0 0 0 5 3 12000503
+0 0 0 0 0 0 5 4 12000504
+0 0 0 0 0 0 5 5 12000505
+0 0 0 0 0 0 5 6 12000506
+0 0 0 0 0 0 5 7 12000507
+0 0 0 0 0 0 5 8 12000508
+0 0 0 0 0 0 5 9 12000509
-"Time = 0.000000
--1.350000 12000400.0000000000000
--1.050000 12000401.0000000000000
--0.750000 12000402.0000000000000
--0.450000 12000403.0000000000000
--0.150000 12000404.0000000000000
-0.150000 12000405.0000000000000
-0.450000 12000406.0000000000000
-0.750000 12000407.0000000000000
-1.050000 12000408.0000000000000
-1.350000 12000409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 12000500
+1 0 0 0 0 0 5 1 12000501
+1 0 0 0 0 0 5 2 12000502
+1 0 0 0 0 0 5 3 12000503
+1 0 0 0 0 0 5 4 12000504
+1 0 0 0 0 0 5 5 12000505
+1 0 0 0 0 0 5 6 12000506
+1 0 0 0 0 0 5 7 12000507
+1 0 0 0 0 0 5 8 12000508
+1 0 0 0 0 0 5 9 12000509
+
-"Time = 1.000000
--1.350000 12000400.0000000000000
--1.050000 12000401.0000000000000
--0.750000 12000402.0000000000000
--0.450000 12000403.0000000000000
--0.150000 12000404.0000000000000
-0.150000 12000405.0000000000000
-0.450000 12000406.0000000000000
-0.750000 12000407.0000000000000
-1.050000 12000408.0000000000000
-1.350000 12000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/vz.xl b/CarpetAttic/Cart3dTest/test/symmetric-x/vz.xl
index c03919d12..7385d5001 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/vz.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/vz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz x (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 5 13000505
+0 0 0 0 0 1 5 5 13010505
+0 0 0 0 0 2 5 5 13020505
+0 0 0 0 0 3 5 5 13030505
+0 0 0 0 0 4 5 5 13040505
+0 0 0 0 0 5 5 5 13050505
+0 0 0 0 0 6 5 5 13060505
+0 0 0 0 0 7 5 5 13070505
+0 0 0 0 0 8 5 5 13080505
+0 0 0 0 0 9 5 5 13090505
-"Time = 0.000000
-0.150000 13000404.0000000000000
-0.450000 13010404.0000000000000
-0.750000 13020404.0000000000000
-1.050000 13030404.0000000000000
-1.350000 13040404.0000000000000
-1.650000 13050404.0000000000000
-1.950000 13060404.0000000000000
-2.250000 13070404.0000000000000
-2.550000 13080404.0000000000000
-2.850000 13090404.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 5 13000505
+1 0 0 0 0 1 5 5 13010505
+1 0 0 0 0 2 5 5 13020505
+1 0 0 0 0 3 5 5 13030505
+1 0 0 0 0 4 5 5 13040505
+1 0 0 0 0 5 5 5 13050505
+1 0 0 0 0 6 5 5 13060505
+1 0 0 0 0 7 5 5 13070505
+1 0 0 0 0 8 5 5 13080505
+1 0 0 0 0 9 5 5 13090505
+
-"Time = 1.000000
-0.150000 13000404.0000000000000
-0.450000 13010404.0000000000000
-0.750000 13020404.0000000000000
-1.050000 13030404.0000000000000
-1.350000 13040404.0000000000000
-1.650000 13050404.0000000000000
-1.950000 13060404.0000000000000
-2.250000 13070404.0000000000000
-2.550000 13080404.0000000000000
-2.850000 13090404.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/vz.yl b/CarpetAttic/Cart3dTest/test/symmetric-x/vz.yl
index 096f35697..2a3d59f32 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/vz.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/vz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz y (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 0 5 13000005
+0 0 0 0 0 0 1 5 13000105
+0 0 0 0 0 0 2 5 13000205
+0 0 0 0 0 0 3 5 13000305
+0 0 0 0 0 0 4 5 13000405
+0 0 0 0 0 0 5 5 13000505
+0 0 0 0 0 0 6 5 13000605
+0 0 0 0 0 0 7 5 13000705
+0 0 0 0 0 0 8 5 13000805
+0 0 0 0 0 0 9 5 13000905
-"Time = 0.000000
--1.350000 13000004.0000000000000
--1.050000 13000104.0000000000000
--0.750000 13000204.0000000000000
--0.450000 13000304.0000000000000
--0.150000 13000404.0000000000000
-0.150000 13000504.0000000000000
-0.450000 13000604.0000000000000
-0.750000 13000704.0000000000000
-1.050000 13000804.0000000000000
-1.350000 13000904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 0 5 13000005
+1 0 0 0 0 0 1 5 13000105
+1 0 0 0 0 0 2 5 13000205
+1 0 0 0 0 0 3 5 13000305
+1 0 0 0 0 0 4 5 13000405
+1 0 0 0 0 0 5 5 13000505
+1 0 0 0 0 0 6 5 13000605
+1 0 0 0 0 0 7 5 13000705
+1 0 0 0 0 0 8 5 13000805
+1 0 0 0 0 0 9 5 13000905
+
-"Time = 1.000000
--1.350000 13000004.0000000000000
--1.050000 13000104.0000000000000
--0.750000 13000204.0000000000000
--0.450000 13000304.0000000000000
--0.150000 13000404.0000000000000
-0.150000 13000504.0000000000000
-0.450000 13000604.0000000000000
-0.750000 13000704.0000000000000
-1.050000 13000804.0000000000000
-1.350000 13000904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-x/vz.zl b/CarpetAttic/Cart3dTest/test/symmetric-x/vz.zl
index d72fcf601..ad03363ed 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-x/vz.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-x/vz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz z (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 0 13000500
+0 0 0 0 0 0 5 1 13000501
+0 0 0 0 0 0 5 2 13000502
+0 0 0 0 0 0 5 3 13000503
+0 0 0 0 0 0 5 4 13000504
+0 0 0 0 0 0 5 5 13000505
+0 0 0 0 0 0 5 6 13000506
+0 0 0 0 0 0 5 7 13000507
+0 0 0 0 0 0 5 8 13000508
+0 0 0 0 0 0 5 9 13000509
-"Time = 0.000000
--1.350000 13000400.0000000000000
--1.050000 13000401.0000000000000
--0.750000 13000402.0000000000000
--0.450000 13000403.0000000000000
--0.150000 13000404.0000000000000
-0.150000 13000405.0000000000000
-0.450000 13000406.0000000000000
-0.750000 13000407.0000000000000
-1.050000 13000408.0000000000000
-1.350000 13000409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 0 13000500
+1 0 0 0 0 0 5 1 13000501
+1 0 0 0 0 0 5 2 13000502
+1 0 0 0 0 0 5 3 13000503
+1 0 0 0 0 0 5 4 13000504
+1 0 0 0 0 0 5 5 13000505
+1 0 0 0 0 0 5 6 13000506
+1 0 0 0 0 0 5 7 13000507
+1 0 0 0 0 0 5 8 13000508
+1 0 0 0 0 0 5 9 13000509
+
-"Time = 1.000000
--1.350000 13000400.0000000000000
--1.050000 13000401.0000000000000
--0.750000 13000402.0000000000000
--0.450000 13000403.0000000000000
--0.150000 13000404.0000000000000
-0.150000 13000405.0000000000000
-0.450000 13000406.0000000000000
-0.750000 13000407.0000000000000
-1.050000 13000408.0000000000000
-1.350000 13000409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/ax.xl b/CarpetAttic/Cart3dTest/test/symmetric-y/ax.xl
index 41cc7fd5a..397050783 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/ax.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/ax.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax x (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 31000105
+0 0 0 0 0 1 1 5 31010105
+0 0 0 0 0 2 1 5 31020105
+0 0 0 0 0 3 1 5 31030105
+0 0 0 0 0 4 1 5 31040105
+0 0 0 0 0 5 1 5 31050105
+0 0 0 0 0 6 1 5 31060105
+0 0 0 0 0 7 1 5 31070105
+0 0 0 0 0 8 1 5 31080105
+0 0 0 0 0 9 1 5 31090105
-"Time = 0.000000
--1.350000 31000104.0000000000000
--1.050000 31010104.0000000000000
--0.750000 31020104.0000000000000
--0.450000 31030104.0000000000000
--0.150000 31040104.0000000000000
-0.150000 31050104.0000000000000
-0.450000 31060104.0000000000000
-0.750000 31070104.0000000000000
-1.050000 31080104.0000000000000
-1.350000 31090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 31000105
+1 0 0 0 0 1 1 5 31010105
+1 0 0 0 0 2 1 5 31020105
+1 0 0 0 0 3 1 5 31030105
+1 0 0 0 0 4 1 5 31040105
+1 0 0 0 0 5 1 5 31050105
+1 0 0 0 0 6 1 5 31060105
+1 0 0 0 0 7 1 5 31070105
+1 0 0 0 0 8 1 5 31080105
+1 0 0 0 0 9 1 5 31090105
+
-"Time = 1.000000
--1.350000 31000104.0000000000000
--1.050000 31010104.0000000000000
--0.750000 31020104.0000000000000
--0.450000 31030104.0000000000000
--0.150000 31040104.0000000000000
-0.150000 31050104.0000000000000
-0.450000 31060104.0000000000000
-0.750000 31070104.0000000000000
-1.050000 31080104.0000000000000
-1.350000 31090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/ax.yl b/CarpetAttic/Cart3dTest/test/symmetric-y/ax.yl
index e51af1d0d..b048821dc 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/ax.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/ax.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax y (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 31050005
+0 0 0 0 0 5 1 5 31050105
+0 0 0 0 0 5 2 5 31050205
+0 0 0 0 0 5 3 5 31050305
+0 0 0 0 0 5 4 5 31050405
+0 0 0 0 0 5 5 5 31050505
+0 0 0 0 0 5 6 5 31050605
+0 0 0 0 0 5 7 5 31050705
+0 0 0 0 0 5 8 5 31050805
+0 0 0 0 0 5 9 5 31050905
-"Time = 0.000000
--0.150000 31040004.0000000000000
-0.150000 31040104.0000000000000
-0.450000 31040204.0000000000000
-0.750000 31040304.0000000000000
-1.050000 31040404.0000000000000
-1.350000 31040504.0000000000000
-1.650000 31040604.0000000000000
-1.950000 31040704.0000000000000
-2.250000 31040804.0000000000000
-2.550000 31040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 -31050105
+1 0 0 0 0 5 1 5 31050105
+1 0 0 0 0 5 2 5 31050205
+1 0 0 0 0 5 3 5 31050305
+1 0 0 0 0 5 4 5 31050405
+1 0 0 0 0 5 5 5 31050505
+1 0 0 0 0 5 6 5 31050605
+1 0 0 0 0 5 7 5 31050705
+1 0 0 0 0 5 8 5 31050805
+1 0 0 0 0 5 9 5 31050905
+
-"Time = 1.000000
--0.150000 -31040104.0000000000000
-0.150000 31040104.0000000000000
-0.450000 31040204.0000000000000
-0.750000 31040304.0000000000000
-1.050000 31040404.0000000000000
-1.350000 31040504.0000000000000
-1.650000 31040604.0000000000000
-1.950000 31040704.0000000000000
-2.250000 31040804.0000000000000
-2.550000 31040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/ax.zl b/CarpetAttic/Cart3dTest/test/symmetric-y/ax.zl
index 8569283c8..58cdf61ac 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/ax.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/ax.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax z (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 31050100
+0 0 0 0 0 5 1 1 31050101
+0 0 0 0 0 5 1 2 31050102
+0 0 0 0 0 5 1 3 31050103
+0 0 0 0 0 5 1 4 31050104
+0 0 0 0 0 5 1 5 31050105
+0 0 0 0 0 5 1 6 31050106
+0 0 0 0 0 5 1 7 31050107
+0 0 0 0 0 5 1 8 31050108
+0 0 0 0 0 5 1 9 31050109
-"Time = 0.000000
--1.350000 31040100.0000000000000
--1.050000 31040101.0000000000000
--0.750000 31040102.0000000000000
--0.450000 31040103.0000000000000
--0.150000 31040104.0000000000000
-0.150000 31040105.0000000000000
-0.450000 31040106.0000000000000
-0.750000 31040107.0000000000000
-1.050000 31040108.0000000000000
-1.350000 31040109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 31050100
+1 0 0 0 0 5 1 1 31050101
+1 0 0 0 0 5 1 2 31050102
+1 0 0 0 0 5 1 3 31050103
+1 0 0 0 0 5 1 4 31050104
+1 0 0 0 0 5 1 5 31050105
+1 0 0 0 0 5 1 6 31050106
+1 0 0 0 0 5 1 7 31050107
+1 0 0 0 0 5 1 8 31050108
+1 0 0 0 0 5 1 9 31050109
+
-"Time = 1.000000
--1.350000 31040100.0000000000000
--1.050000 31040101.0000000000000
--0.750000 31040102.0000000000000
--0.450000 31040103.0000000000000
--0.150000 31040104.0000000000000
-0.150000 31040105.0000000000000
-0.450000 31040106.0000000000000
-0.750000 31040107.0000000000000
-1.050000 31040108.0000000000000
-1.350000 31040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/ay.xl b/CarpetAttic/Cart3dTest/test/symmetric-y/ay.xl
index 6c4957328..99252f51f 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/ay.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/ay.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay x (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 32000105
+0 0 0 0 0 1 1 5 32010105
+0 0 0 0 0 2 1 5 32020105
+0 0 0 0 0 3 1 5 32030105
+0 0 0 0 0 4 1 5 32040105
+0 0 0 0 0 5 1 5 32050105
+0 0 0 0 0 6 1 5 32060105
+0 0 0 0 0 7 1 5 32070105
+0 0 0 0 0 8 1 5 32080105
+0 0 0 0 0 9 1 5 32090105
-"Time = 0.000000
--1.350000 32000104.0000000000000
--1.050000 32010104.0000000000000
--0.750000 32020104.0000000000000
--0.450000 32030104.0000000000000
--0.150000 32040104.0000000000000
-0.150000 32050104.0000000000000
-0.450000 32060104.0000000000000
-0.750000 32070104.0000000000000
-1.050000 32080104.0000000000000
-1.350000 32090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 32000105
+1 0 0 0 0 1 1 5 32010105
+1 0 0 0 0 2 1 5 32020105
+1 0 0 0 0 3 1 5 32030105
+1 0 0 0 0 4 1 5 32040105
+1 0 0 0 0 5 1 5 32050105
+1 0 0 0 0 6 1 5 32060105
+1 0 0 0 0 7 1 5 32070105
+1 0 0 0 0 8 1 5 32080105
+1 0 0 0 0 9 1 5 32090105
+
-"Time = 1.000000
--1.350000 32000104.0000000000000
--1.050000 32010104.0000000000000
--0.750000 32020104.0000000000000
--0.450000 32030104.0000000000000
--0.150000 32040104.0000000000000
-0.150000 32050104.0000000000000
-0.450000 32060104.0000000000000
-0.750000 32070104.0000000000000
-1.050000 32080104.0000000000000
-1.350000 32090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/ay.yl b/CarpetAttic/Cart3dTest/test/symmetric-y/ay.yl
index 9ef5d6428..903b3c096 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/ay.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/ay.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay y (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 32050005
+0 0 0 0 0 5 1 5 32050105
+0 0 0 0 0 5 2 5 32050205
+0 0 0 0 0 5 3 5 32050305
+0 0 0 0 0 5 4 5 32050405
+0 0 0 0 0 5 5 5 32050505
+0 0 0 0 0 5 6 5 32050605
+0 0 0 0 0 5 7 5 32050705
+0 0 0 0 0 5 8 5 32050805
+0 0 0 0 0 5 9 5 32050905
-"Time = 0.000000
--0.150000 32040004.0000000000000
-0.150000 32040104.0000000000000
-0.450000 32040204.0000000000000
-0.750000 32040304.0000000000000
-1.050000 32040404.0000000000000
-1.350000 32040504.0000000000000
-1.650000 32040604.0000000000000
-1.950000 32040704.0000000000000
-2.250000 32040804.0000000000000
-2.550000 32040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 32050105
+1 0 0 0 0 5 1 5 32050105
+1 0 0 0 0 5 2 5 32050205
+1 0 0 0 0 5 3 5 32050305
+1 0 0 0 0 5 4 5 32050405
+1 0 0 0 0 5 5 5 32050505
+1 0 0 0 0 5 6 5 32050605
+1 0 0 0 0 5 7 5 32050705
+1 0 0 0 0 5 8 5 32050805
+1 0 0 0 0 5 9 5 32050905
+
-"Time = 1.000000
--0.150000 32040104.0000000000000
-0.150000 32040104.0000000000000
-0.450000 32040204.0000000000000
-0.750000 32040304.0000000000000
-1.050000 32040404.0000000000000
-1.350000 32040504.0000000000000
-1.650000 32040604.0000000000000
-1.950000 32040704.0000000000000
-2.250000 32040804.0000000000000
-2.550000 32040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/ay.zl b/CarpetAttic/Cart3dTest/test/symmetric-y/ay.zl
index 22ea4fbf8..7210cf6bd 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/ay.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/ay.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay z (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 32050100
+0 0 0 0 0 5 1 1 32050101
+0 0 0 0 0 5 1 2 32050102
+0 0 0 0 0 5 1 3 32050103
+0 0 0 0 0 5 1 4 32050104
+0 0 0 0 0 5 1 5 32050105
+0 0 0 0 0 5 1 6 32050106
+0 0 0 0 0 5 1 7 32050107
+0 0 0 0 0 5 1 8 32050108
+0 0 0 0 0 5 1 9 32050109
-"Time = 0.000000
--1.350000 32040100.0000000000000
--1.050000 32040101.0000000000000
--0.750000 32040102.0000000000000
--0.450000 32040103.0000000000000
--0.150000 32040104.0000000000000
-0.150000 32040105.0000000000000
-0.450000 32040106.0000000000000
-0.750000 32040107.0000000000000
-1.050000 32040108.0000000000000
-1.350000 32040109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 32050100
+1 0 0 0 0 5 1 1 32050101
+1 0 0 0 0 5 1 2 32050102
+1 0 0 0 0 5 1 3 32050103
+1 0 0 0 0 5 1 4 32050104
+1 0 0 0 0 5 1 5 32050105
+1 0 0 0 0 5 1 6 32050106
+1 0 0 0 0 5 1 7 32050107
+1 0 0 0 0 5 1 8 32050108
+1 0 0 0 0 5 1 9 32050109
+
-"Time = 1.000000
--1.350000 32040100.0000000000000
--1.050000 32040101.0000000000000
--0.750000 32040102.0000000000000
--0.450000 32040103.0000000000000
--0.150000 32040104.0000000000000
-0.150000 32040105.0000000000000
-0.450000 32040106.0000000000000
-0.750000 32040107.0000000000000
-1.050000 32040108.0000000000000
-1.350000 32040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/az.xl b/CarpetAttic/Cart3dTest/test/symmetric-y/az.xl
index 0e0f4ec0c..739247d1f 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/az.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/az.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::az x (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 33000105
+0 0 0 0 0 1 1 5 33010105
+0 0 0 0 0 2 1 5 33020105
+0 0 0 0 0 3 1 5 33030105
+0 0 0 0 0 4 1 5 33040105
+0 0 0 0 0 5 1 5 33050105
+0 0 0 0 0 6 1 5 33060105
+0 0 0 0 0 7 1 5 33070105
+0 0 0 0 0 8 1 5 33080105
+0 0 0 0 0 9 1 5 33090105
-"Time = 0.000000
--1.350000 33000104.0000000000000
--1.050000 33010104.0000000000000
--0.750000 33020104.0000000000000
--0.450000 33030104.0000000000000
--0.150000 33040104.0000000000000
-0.150000 33050104.0000000000000
-0.450000 33060104.0000000000000
-0.750000 33070104.0000000000000
-1.050000 33080104.0000000000000
-1.350000 33090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 33000105
+1 0 0 0 0 1 1 5 33010105
+1 0 0 0 0 2 1 5 33020105
+1 0 0 0 0 3 1 5 33030105
+1 0 0 0 0 4 1 5 33040105
+1 0 0 0 0 5 1 5 33050105
+1 0 0 0 0 6 1 5 33060105
+1 0 0 0 0 7 1 5 33070105
+1 0 0 0 0 8 1 5 33080105
+1 0 0 0 0 9 1 5 33090105
+
-"Time = 1.000000
--1.350000 33000104.0000000000000
--1.050000 33010104.0000000000000
--0.750000 33020104.0000000000000
--0.450000 33030104.0000000000000
--0.150000 33040104.0000000000000
-0.150000 33050104.0000000000000
-0.450000 33060104.0000000000000
-0.750000 33070104.0000000000000
-1.050000 33080104.0000000000000
-1.350000 33090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/az.yl b/CarpetAttic/Cart3dTest/test/symmetric-y/az.yl
index 3b1f67511..6cb6ff24a 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/az.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/az.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::az y (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 33050005
+0 0 0 0 0 5 1 5 33050105
+0 0 0 0 0 5 2 5 33050205
+0 0 0 0 0 5 3 5 33050305
+0 0 0 0 0 5 4 5 33050405
+0 0 0 0 0 5 5 5 33050505
+0 0 0 0 0 5 6 5 33050605
+0 0 0 0 0 5 7 5 33050705
+0 0 0 0 0 5 8 5 33050805
+0 0 0 0 0 5 9 5 33050905
-"Time = 0.000000
--0.150000 33040004.0000000000000
-0.150000 33040104.0000000000000
-0.450000 33040204.0000000000000
-0.750000 33040304.0000000000000
-1.050000 33040404.0000000000000
-1.350000 33040504.0000000000000
-1.650000 33040604.0000000000000
-1.950000 33040704.0000000000000
-2.250000 33040804.0000000000000
-2.550000 33040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 -33050105
+1 0 0 0 0 5 1 5 33050105
+1 0 0 0 0 5 2 5 33050205
+1 0 0 0 0 5 3 5 33050305
+1 0 0 0 0 5 4 5 33050405
+1 0 0 0 0 5 5 5 33050505
+1 0 0 0 0 5 6 5 33050605
+1 0 0 0 0 5 7 5 33050705
+1 0 0 0 0 5 8 5 33050805
+1 0 0 0 0 5 9 5 33050905
+
-"Time = 1.000000
--0.150000 -33040104.0000000000000
-0.150000 33040104.0000000000000
-0.450000 33040204.0000000000000
-0.750000 33040304.0000000000000
-1.050000 33040404.0000000000000
-1.350000 33040504.0000000000000
-1.650000 33040604.0000000000000
-1.950000 33040704.0000000000000
-2.250000 33040804.0000000000000
-2.550000 33040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/az.zl b/CarpetAttic/Cart3dTest/test/symmetric-y/az.zl
index 1331690d8..60c44a853 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/az.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/az.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::az z (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 33050100
+0 0 0 0 0 5 1 1 33050101
+0 0 0 0 0 5 1 2 33050102
+0 0 0 0 0 5 1 3 33050103
+0 0 0 0 0 5 1 4 33050104
+0 0 0 0 0 5 1 5 33050105
+0 0 0 0 0 5 1 6 33050106
+0 0 0 0 0 5 1 7 33050107
+0 0 0 0 0 5 1 8 33050108
+0 0 0 0 0 5 1 9 33050109
-"Time = 0.000000
--1.350000 33040100.0000000000000
--1.050000 33040101.0000000000000
--0.750000 33040102.0000000000000
--0.450000 33040103.0000000000000
--0.150000 33040104.0000000000000
-0.150000 33040105.0000000000000
-0.450000 33040106.0000000000000
-0.750000 33040107.0000000000000
-1.050000 33040108.0000000000000
-1.350000 33040109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 33050100
+1 0 0 0 0 5 1 1 33050101
+1 0 0 0 0 5 1 2 33050102
+1 0 0 0 0 5 1 3 33050103
+1 0 0 0 0 5 1 4 33050104
+1 0 0 0 0 5 1 5 33050105
+1 0 0 0 0 5 1 6 33050106
+1 0 0 0 0 5 1 7 33050107
+1 0 0 0 0 5 1 8 33050108
+1 0 0 0 0 5 1 9 33050109
+
-"Time = 1.000000
--1.350000 33040100.0000000000000
--1.050000 33040101.0000000000000
--0.750000 33040102.0000000000000
--0.450000 33040103.0000000000000
--0.150000 33040104.0000000000000
-0.150000 33040105.0000000000000
-0.450000 33040106.0000000000000
-0.750000 33040107.0000000000000
-1.050000 33040108.0000000000000
-1.350000 33040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_x.xl b/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_x.xl
index 33b36d0af..a14db6a4b 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_x.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_x.xl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x x (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 -1.35
+0 0 0 0 0 1 1 5 -1.05
+0 0 0 0 0 2 1 5 -0.75
+0 0 0 0 0 3 1 5 -0.45
+0 0 0 0 0 4 1 5 -0.15
+0 0 0 0 0 5 1 5 0.15
+0 0 0 0 0 6 1 5 0.45
+0 0 0 0 0 7 1 5 0.75
+0 0 0 0 0 8 1 5 1.05
+0 0 0 0 0 9 1 5 1.35
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 -1.35
+1 0 0 0 0 1 1 5 -1.05
+1 0 0 0 0 2 1 5 -0.75
+1 0 0 0 0 3 1 5 -0.45
+1 0 0 0 0 4 1 5 -0.15
+1 0 0 0 0 5 1 5 0.15
+1 0 0 0 0 6 1 5 0.45
+1 0 0 0 0 7 1 5 0.75
+1 0 0 0 0 8 1 5 1.05
+1 0 0 0 0 9 1 5 1.35
+
-"Time = 1.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_x.yl b/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_x.yl
index 46363bcfd..592815c82 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_x.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_x.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x y (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 0.15
+0 0 0 0 0 5 1 5 0.15
+0 0 0 0 0 5 2 5 0.15
+0 0 0 0 0 5 3 5 0.15
+0 0 0 0 0 5 4 5 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 6 5 0.15
+0 0 0 0 0 5 7 5 0.15
+0 0 0 0 0 5 8 5 0.15
+0 0 0 0 0 5 9 5 0.15
-"Time = 0.000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 0.15
+1 0 0 0 0 5 1 5 0.15
+1 0 0 0 0 5 2 5 0.15
+1 0 0 0 0 5 3 5 0.15
+1 0 0 0 0 5 4 5 0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 5 6 5 0.15
+1 0 0 0 0 5 7 5 0.15
+1 0 0 0 0 5 8 5 0.15
+1 0 0 0 0 5 9 5 0.15
+
-"Time = 1.000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_x.zl b/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_x.zl
index 52b13d0ae..c3d57ce1b 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_x.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_x.zl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x z (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 0.15
+0 0 0 0 0 5 1 1 0.15
+0 0 0 0 0 5 1 2 0.15
+0 0 0 0 0 5 1 3 0.15
+0 0 0 0 0 5 1 4 0.15
+0 0 0 0 0 5 1 5 0.15
+0 0 0 0 0 5 1 6 0.15
+0 0 0 0 0 5 1 7 0.15
+0 0 0 0 0 5 1 8 0.15
+0 0 0 0 0 5 1 9 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 0.15
+1 0 0 0 0 5 1 1 0.15
+1 0 0 0 0 5 1 2 0.15
+1 0 0 0 0 5 1 3 0.15
+1 0 0 0 0 5 1 4 0.15
+1 0 0 0 0 5 1 5 0.15
+1 0 0 0 0 5 1 6 0.15
+1 0 0 0 0 5 1 7 0.15
+1 0 0 0 0 5 1 8 0.15
+1 0 0 0 0 5 1 9 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_y.xl b/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_y.xl
index 9ec3cd5db..e07fa99ab 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_y.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_y.xl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y x (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 0.15
+0 0 0 0 0 1 1 5 0.15
+0 0 0 0 0 2 1 5 0.15
+0 0 0 0 0 3 1 5 0.15
+0 0 0 0 0 4 1 5 0.15
+0 0 0 0 0 5 1 5 0.15
+0 0 0 0 0 6 1 5 0.15
+0 0 0 0 0 7 1 5 0.15
+0 0 0 0 0 8 1 5 0.15
+0 0 0 0 0 9 1 5 0.15
-"Time = 0.000000
--1.350000 0.1500000000000
--1.050000 0.1500000000000
--0.750000 0.1500000000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 0.15
+1 0 0 0 0 1 1 5 0.15
+1 0 0 0 0 2 1 5 0.15
+1 0 0 0 0 3 1 5 0.15
+1 0 0 0 0 4 1 5 0.15
+1 0 0 0 0 5 1 5 0.15
+1 0 0 0 0 6 1 5 0.15
+1 0 0 0 0 7 1 5 0.15
+1 0 0 0 0 8 1 5 0.15
+1 0 0 0 0 9 1 5 0.15
+
-"Time = 1.000000
--1.350000 0.1500000000000
--1.050000 0.1500000000000
--0.750000 0.1500000000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_y.yl b/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_y.yl
index b2abd0b7f..82d3bdaa6 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_y.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_y.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y y (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 -0.15
+0 0 0 0 0 5 1 5 0.15
+0 0 0 0 0 5 2 5 0.45
+0 0 0 0 0 5 3 5 0.75
+0 0 0 0 0 5 4 5 1.05
+0 0 0 0 0 5 5 5 1.35
+0 0 0 0 0 5 6 5 1.65
+0 0 0 0 0 5 7 5 1.95
+0 0 0 0 0 5 8 5 2.25
+0 0 0 0 0 5 9 5 2.55
-"Time = 0.000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
-2.550000 2.5500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 -0.15
+1 0 0 0 0 5 1 5 0.15
+1 0 0 0 0 5 2 5 0.45
+1 0 0 0 0 5 3 5 0.75
+1 0 0 0 0 5 4 5 1.05
+1 0 0 0 0 5 5 5 1.35
+1 0 0 0 0 5 6 5 1.65
+1 0 0 0 0 5 7 5 1.95
+1 0 0 0 0 5 8 5 2.25
+1 0 0 0 0 5 9 5 2.55
+
-"Time = 1.000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
-2.550000 2.5500000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_y.zl b/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_y.zl
index 9ec3cd5db..5ad3531ba 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_y.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_y.zl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y z (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 0.15
+0 0 0 0 0 5 1 1 0.15
+0 0 0 0 0 5 1 2 0.15
+0 0 0 0 0 5 1 3 0.15
+0 0 0 0 0 5 1 4 0.15
+0 0 0 0 0 5 1 5 0.15
+0 0 0 0 0 5 1 6 0.15
+0 0 0 0 0 5 1 7 0.15
+0 0 0 0 0 5 1 8 0.15
+0 0 0 0 0 5 1 9 0.15
-"Time = 0.000000
--1.350000 0.1500000000000
--1.050000 0.1500000000000
--0.750000 0.1500000000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 0.15
+1 0 0 0 0 5 1 1 0.15
+1 0 0 0 0 5 1 2 0.15
+1 0 0 0 0 5 1 3 0.15
+1 0 0 0 0 5 1 4 0.15
+1 0 0 0 0 5 1 5 0.15
+1 0 0 0 0 5 1 6 0.15
+1 0 0 0 0 5 1 7 0.15
+1 0 0 0 0 5 1 8 0.15
+1 0 0 0 0 5 1 9 0.15
+
-"Time = 1.000000
--1.350000 0.1500000000000
--1.050000 0.1500000000000
--0.750000 0.1500000000000
--0.450000 0.1500000000000
--0.150000 0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.1500000000000
-0.750000 0.1500000000000
-1.050000 0.1500000000000
-1.350000 0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_z.xl b/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_z.xl
index 52b13d0ae..9718c560e 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_z.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_z.xl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z x (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 0.15
+0 0 0 0 0 1 1 5 0.15
+0 0 0 0 0 2 1 5 0.15
+0 0 0 0 0 3 1 5 0.15
+0 0 0 0 0 4 1 5 0.15
+0 0 0 0 0 5 1 5 0.15
+0 0 0 0 0 6 1 5 0.15
+0 0 0 0 0 7 1 5 0.15
+0 0 0 0 0 8 1 5 0.15
+0 0 0 0 0 9 1 5 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 0.15
+1 0 0 0 0 1 1 5 0.15
+1 0 0 0 0 2 1 5 0.15
+1 0 0 0 0 3 1 5 0.15
+1 0 0 0 0 4 1 5 0.15
+1 0 0 0 0 5 1 5 0.15
+1 0 0 0 0 6 1 5 0.15
+1 0 0 0 0 7 1 5 0.15
+1 0 0 0 0 8 1 5 0.15
+1 0 0 0 0 9 1 5 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_z.yl b/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_z.yl
index 46363bcfd..0373176c5 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_z.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_z.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z y (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 0.15
+0 0 0 0 0 5 1 5 0.15
+0 0 0 0 0 5 2 5 0.15
+0 0 0 0 0 5 3 5 0.15
+0 0 0 0 0 5 4 5 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 6 5 0.15
+0 0 0 0 0 5 7 5 0.15
+0 0 0 0 0 5 8 5 0.15
+0 0 0 0 0 5 9 5 0.15
-"Time = 0.000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 0.15
+1 0 0 0 0 5 1 5 0.15
+1 0 0 0 0 5 2 5 0.15
+1 0 0 0 0 5 3 5 0.15
+1 0 0 0 0 5 4 5 0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 5 6 5 0.15
+1 0 0 0 0 5 7 5 0.15
+1 0 0 0 0 5 8 5 0.15
+1 0 0 0 0 5 9 5 0.15
+
-"Time = 1.000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
-2.550000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_z.zl b/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_z.zl
index 33b36d0af..e2b006826 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_z.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/cart3d_z.zl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z z (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 -1.35
+0 0 0 0 0 5 1 1 -1.05
+0 0 0 0 0 5 1 2 -0.75
+0 0 0 0 0 5 1 3 -0.45
+0 0 0 0 0 5 1 4 -0.15
+0 0 0 0 0 5 1 5 0.15
+0 0 0 0 0 5 1 6 0.45
+0 0 0 0 0 5 1 7 0.75
+0 0 0 0 0 5 1 8 1.05
+0 0 0 0 0 5 1 9 1.35
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 -1.35
+1 0 0 0 0 5 1 1 -1.05
+1 0 0 0 0 5 1 2 -0.75
+1 0 0 0 0 5 1 3 -0.45
+1 0 0 0 0 5 1 4 -0.15
+1 0 0 0 0 5 1 5 0.15
+1 0 0 0 0 5 1 6 0.45
+1 0 0 0 0 5 1 7 0.75
+1 0 0 0 0 5 1 8 1.05
+1 0 0 0 0 5 1 9 1.35
+
-"Time = 1.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/fxx.xl b/CarpetAttic/Cart3dTest/test/symmetric-y/fxx.xl
index 4351e6c4b..b571599e8 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/fxx.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/fxx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx x (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 41000105
+0 0 0 0 0 1 1 5 41010105
+0 0 0 0 0 2 1 5 41020105
+0 0 0 0 0 3 1 5 41030105
+0 0 0 0 0 4 1 5 41040105
+0 0 0 0 0 5 1 5 41050105
+0 0 0 0 0 6 1 5 41060105
+0 0 0 0 0 7 1 5 41070105
+0 0 0 0 0 8 1 5 41080105
+0 0 0 0 0 9 1 5 41090105
-"Time = 0.000000
--1.350000 41000104.0000000000000
--1.050000 41010104.0000000000000
--0.750000 41020104.0000000000000
--0.450000 41030104.0000000000000
--0.150000 41040104.0000000000000
-0.150000 41050104.0000000000000
-0.450000 41060104.0000000000000
-0.750000 41070104.0000000000000
-1.050000 41080104.0000000000000
-1.350000 41090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 41000105
+1 0 0 0 0 1 1 5 41010105
+1 0 0 0 0 2 1 5 41020105
+1 0 0 0 0 3 1 5 41030105
+1 0 0 0 0 4 1 5 41040105
+1 0 0 0 0 5 1 5 41050105
+1 0 0 0 0 6 1 5 41060105
+1 0 0 0 0 7 1 5 41070105
+1 0 0 0 0 8 1 5 41080105
+1 0 0 0 0 9 1 5 41090105
+
-"Time = 1.000000
--1.350000 41000104.0000000000000
--1.050000 41010104.0000000000000
--0.750000 41020104.0000000000000
--0.450000 41030104.0000000000000
--0.150000 41040104.0000000000000
-0.150000 41050104.0000000000000
-0.450000 41060104.0000000000000
-0.750000 41070104.0000000000000
-1.050000 41080104.0000000000000
-1.350000 41090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/fxx.yl b/CarpetAttic/Cart3dTest/test/symmetric-y/fxx.yl
index 78031497c..41f612072 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/fxx.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/fxx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx y (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 41050005
+0 0 0 0 0 5 1 5 41050105
+0 0 0 0 0 5 2 5 41050205
+0 0 0 0 0 5 3 5 41050305
+0 0 0 0 0 5 4 5 41050405
+0 0 0 0 0 5 5 5 41050505
+0 0 0 0 0 5 6 5 41050605
+0 0 0 0 0 5 7 5 41050705
+0 0 0 0 0 5 8 5 41050805
+0 0 0 0 0 5 9 5 41050905
-"Time = 0.000000
--0.150000 41040004.0000000000000
-0.150000 41040104.0000000000000
-0.450000 41040204.0000000000000
-0.750000 41040304.0000000000000
-1.050000 41040404.0000000000000
-1.350000 41040504.0000000000000
-1.650000 41040604.0000000000000
-1.950000 41040704.0000000000000
-2.250000 41040804.0000000000000
-2.550000 41040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 41050105
+1 0 0 0 0 5 1 5 41050105
+1 0 0 0 0 5 2 5 41050205
+1 0 0 0 0 5 3 5 41050305
+1 0 0 0 0 5 4 5 41050405
+1 0 0 0 0 5 5 5 41050505
+1 0 0 0 0 5 6 5 41050605
+1 0 0 0 0 5 7 5 41050705
+1 0 0 0 0 5 8 5 41050805
+1 0 0 0 0 5 9 5 41050905
+
-"Time = 1.000000
--0.150000 41040104.0000000000000
-0.150000 41040104.0000000000000
-0.450000 41040204.0000000000000
-0.750000 41040304.0000000000000
-1.050000 41040404.0000000000000
-1.350000 41040504.0000000000000
-1.650000 41040604.0000000000000
-1.950000 41040704.0000000000000
-2.250000 41040804.0000000000000
-2.550000 41040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/fxx.zl b/CarpetAttic/Cart3dTest/test/symmetric-y/fxx.zl
index df40f225b..e87fa465a 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/fxx.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/fxx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx z (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 41050100
+0 0 0 0 0 5 1 1 41050101
+0 0 0 0 0 5 1 2 41050102
+0 0 0 0 0 5 1 3 41050103
+0 0 0 0 0 5 1 4 41050104
+0 0 0 0 0 5 1 5 41050105
+0 0 0 0 0 5 1 6 41050106
+0 0 0 0 0 5 1 7 41050107
+0 0 0 0 0 5 1 8 41050108
+0 0 0 0 0 5 1 9 41050109
-"Time = 0.000000
--1.350000 41040100.0000000000000
--1.050000 41040101.0000000000000
--0.750000 41040102.0000000000000
--0.450000 41040103.0000000000000
--0.150000 41040104.0000000000000
-0.150000 41040105.0000000000000
-0.450000 41040106.0000000000000
-0.750000 41040107.0000000000000
-1.050000 41040108.0000000000000
-1.350000 41040109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 41050100
+1 0 0 0 0 5 1 1 41050101
+1 0 0 0 0 5 1 2 41050102
+1 0 0 0 0 5 1 3 41050103
+1 0 0 0 0 5 1 4 41050104
+1 0 0 0 0 5 1 5 41050105
+1 0 0 0 0 5 1 6 41050106
+1 0 0 0 0 5 1 7 41050107
+1 0 0 0 0 5 1 8 41050108
+1 0 0 0 0 5 1 9 41050109
+
-"Time = 1.000000
--1.350000 41040100.0000000000000
--1.050000 41040101.0000000000000
--0.750000 41040102.0000000000000
--0.450000 41040103.0000000000000
--0.150000 41040104.0000000000000
-0.150000 41040105.0000000000000
-0.450000 41040106.0000000000000
-0.750000 41040107.0000000000000
-1.050000 41040108.0000000000000
-1.350000 41040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/fxy.xl b/CarpetAttic/Cart3dTest/test/symmetric-y/fxy.xl
index 937be57b2..684a57670 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/fxy.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/fxy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy x (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 42000105
+0 0 0 0 0 1 1 5 42010105
+0 0 0 0 0 2 1 5 42020105
+0 0 0 0 0 3 1 5 42030105
+0 0 0 0 0 4 1 5 42040105
+0 0 0 0 0 5 1 5 42050105
+0 0 0 0 0 6 1 5 42060105
+0 0 0 0 0 7 1 5 42070105
+0 0 0 0 0 8 1 5 42080105
+0 0 0 0 0 9 1 5 42090105
-"Time = 0.000000
--1.350000 42000104.0000000000000
--1.050000 42010104.0000000000000
--0.750000 42020104.0000000000000
--0.450000 42030104.0000000000000
--0.150000 42040104.0000000000000
-0.150000 42050104.0000000000000
-0.450000 42060104.0000000000000
-0.750000 42070104.0000000000000
-1.050000 42080104.0000000000000
-1.350000 42090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 42000105
+1 0 0 0 0 1 1 5 42010105
+1 0 0 0 0 2 1 5 42020105
+1 0 0 0 0 3 1 5 42030105
+1 0 0 0 0 4 1 5 42040105
+1 0 0 0 0 5 1 5 42050105
+1 0 0 0 0 6 1 5 42060105
+1 0 0 0 0 7 1 5 42070105
+1 0 0 0 0 8 1 5 42080105
+1 0 0 0 0 9 1 5 42090105
+
-"Time = 1.000000
--1.350000 42000104.0000000000000
--1.050000 42010104.0000000000000
--0.750000 42020104.0000000000000
--0.450000 42030104.0000000000000
--0.150000 42040104.0000000000000
-0.150000 42050104.0000000000000
-0.450000 42060104.0000000000000
-0.750000 42070104.0000000000000
-1.050000 42080104.0000000000000
-1.350000 42090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/fxy.yl b/CarpetAttic/Cart3dTest/test/symmetric-y/fxy.yl
index 7d4a2e3d0..35d186b50 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/fxy.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/fxy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy y (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 42050005
+0 0 0 0 0 5 1 5 42050105
+0 0 0 0 0 5 2 5 42050205
+0 0 0 0 0 5 3 5 42050305
+0 0 0 0 0 5 4 5 42050405
+0 0 0 0 0 5 5 5 42050505
+0 0 0 0 0 5 6 5 42050605
+0 0 0 0 0 5 7 5 42050705
+0 0 0 0 0 5 8 5 42050805
+0 0 0 0 0 5 9 5 42050905
-"Time = 0.000000
--0.150000 42040004.0000000000000
-0.150000 42040104.0000000000000
-0.450000 42040204.0000000000000
-0.750000 42040304.0000000000000
-1.050000 42040404.0000000000000
-1.350000 42040504.0000000000000
-1.650000 42040604.0000000000000
-1.950000 42040704.0000000000000
-2.250000 42040804.0000000000000
-2.550000 42040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 -42050105
+1 0 0 0 0 5 1 5 42050105
+1 0 0 0 0 5 2 5 42050205
+1 0 0 0 0 5 3 5 42050305
+1 0 0 0 0 5 4 5 42050405
+1 0 0 0 0 5 5 5 42050505
+1 0 0 0 0 5 6 5 42050605
+1 0 0 0 0 5 7 5 42050705
+1 0 0 0 0 5 8 5 42050805
+1 0 0 0 0 5 9 5 42050905
+
-"Time = 1.000000
--0.150000 -42040104.0000000000000
-0.150000 42040104.0000000000000
-0.450000 42040204.0000000000000
-0.750000 42040304.0000000000000
-1.050000 42040404.0000000000000
-1.350000 42040504.0000000000000
-1.650000 42040604.0000000000000
-1.950000 42040704.0000000000000
-2.250000 42040804.0000000000000
-2.550000 42040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/fxy.zl b/CarpetAttic/Cart3dTest/test/symmetric-y/fxy.zl
index 26c84b6e7..dbc3268e3 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/fxy.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/fxy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy z (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 42050100
+0 0 0 0 0 5 1 1 42050101
+0 0 0 0 0 5 1 2 42050102
+0 0 0 0 0 5 1 3 42050103
+0 0 0 0 0 5 1 4 42050104
+0 0 0 0 0 5 1 5 42050105
+0 0 0 0 0 5 1 6 42050106
+0 0 0 0 0 5 1 7 42050107
+0 0 0 0 0 5 1 8 42050108
+0 0 0 0 0 5 1 9 42050109
-"Time = 0.000000
--1.350000 42040100.0000000000000
--1.050000 42040101.0000000000000
--0.750000 42040102.0000000000000
--0.450000 42040103.0000000000000
--0.150000 42040104.0000000000000
-0.150000 42040105.0000000000000
-0.450000 42040106.0000000000000
-0.750000 42040107.0000000000000
-1.050000 42040108.0000000000000
-1.350000 42040109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 42050100
+1 0 0 0 0 5 1 1 42050101
+1 0 0 0 0 5 1 2 42050102
+1 0 0 0 0 5 1 3 42050103
+1 0 0 0 0 5 1 4 42050104
+1 0 0 0 0 5 1 5 42050105
+1 0 0 0 0 5 1 6 42050106
+1 0 0 0 0 5 1 7 42050107
+1 0 0 0 0 5 1 8 42050108
+1 0 0 0 0 5 1 9 42050109
+
-"Time = 1.000000
--1.350000 42040100.0000000000000
--1.050000 42040101.0000000000000
--0.750000 42040102.0000000000000
--0.450000 42040103.0000000000000
--0.150000 42040104.0000000000000
-0.150000 42040105.0000000000000
-0.450000 42040106.0000000000000
-0.750000 42040107.0000000000000
-1.050000 42040108.0000000000000
-1.350000 42040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/fxz.xl b/CarpetAttic/Cart3dTest/test/symmetric-y/fxz.xl
index 63e9edc82..4e6e40ef5 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/fxz.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/fxz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz x (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 43000105
+0 0 0 0 0 1 1 5 43010105
+0 0 0 0 0 2 1 5 43020105
+0 0 0 0 0 3 1 5 43030105
+0 0 0 0 0 4 1 5 43040105
+0 0 0 0 0 5 1 5 43050105
+0 0 0 0 0 6 1 5 43060105
+0 0 0 0 0 7 1 5 43070105
+0 0 0 0 0 8 1 5 43080105
+0 0 0 0 0 9 1 5 43090105
-"Time = 0.000000
--1.350000 43000104.0000000000000
--1.050000 43010104.0000000000000
--0.750000 43020104.0000000000000
--0.450000 43030104.0000000000000
--0.150000 43040104.0000000000000
-0.150000 43050104.0000000000000
-0.450000 43060104.0000000000000
-0.750000 43070104.0000000000000
-1.050000 43080104.0000000000000
-1.350000 43090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 43000105
+1 0 0 0 0 1 1 5 43010105
+1 0 0 0 0 2 1 5 43020105
+1 0 0 0 0 3 1 5 43030105
+1 0 0 0 0 4 1 5 43040105
+1 0 0 0 0 5 1 5 43050105
+1 0 0 0 0 6 1 5 43060105
+1 0 0 0 0 7 1 5 43070105
+1 0 0 0 0 8 1 5 43080105
+1 0 0 0 0 9 1 5 43090105
+
-"Time = 1.000000
--1.350000 43000104.0000000000000
--1.050000 43010104.0000000000000
--0.750000 43020104.0000000000000
--0.450000 43030104.0000000000000
--0.150000 43040104.0000000000000
-0.150000 43050104.0000000000000
-0.450000 43060104.0000000000000
-0.750000 43070104.0000000000000
-1.050000 43080104.0000000000000
-1.350000 43090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/fxz.yl b/CarpetAttic/Cart3dTest/test/symmetric-y/fxz.yl
index f55225f86..e38cd15d5 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/fxz.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/fxz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz y (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 43050005
+0 0 0 0 0 5 1 5 43050105
+0 0 0 0 0 5 2 5 43050205
+0 0 0 0 0 5 3 5 43050305
+0 0 0 0 0 5 4 5 43050405
+0 0 0 0 0 5 5 5 43050505
+0 0 0 0 0 5 6 5 43050605
+0 0 0 0 0 5 7 5 43050705
+0 0 0 0 0 5 8 5 43050805
+0 0 0 0 0 5 9 5 43050905
-"Time = 0.000000
--0.150000 43040004.0000000000000
-0.150000 43040104.0000000000000
-0.450000 43040204.0000000000000
-0.750000 43040304.0000000000000
-1.050000 43040404.0000000000000
-1.350000 43040504.0000000000000
-1.650000 43040604.0000000000000
-1.950000 43040704.0000000000000
-2.250000 43040804.0000000000000
-2.550000 43040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 43050105
+1 0 0 0 0 5 1 5 43050105
+1 0 0 0 0 5 2 5 43050205
+1 0 0 0 0 5 3 5 43050305
+1 0 0 0 0 5 4 5 43050405
+1 0 0 0 0 5 5 5 43050505
+1 0 0 0 0 5 6 5 43050605
+1 0 0 0 0 5 7 5 43050705
+1 0 0 0 0 5 8 5 43050805
+1 0 0 0 0 5 9 5 43050905
+
-"Time = 1.000000
--0.150000 43040104.0000000000000
-0.150000 43040104.0000000000000
-0.450000 43040204.0000000000000
-0.750000 43040304.0000000000000
-1.050000 43040404.0000000000000
-1.350000 43040504.0000000000000
-1.650000 43040604.0000000000000
-1.950000 43040704.0000000000000
-2.250000 43040804.0000000000000
-2.550000 43040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/fxz.zl b/CarpetAttic/Cart3dTest/test/symmetric-y/fxz.zl
index 67e9997b6..849878f7e 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/fxz.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/fxz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz z (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 43050100
+0 0 0 0 0 5 1 1 43050101
+0 0 0 0 0 5 1 2 43050102
+0 0 0 0 0 5 1 3 43050103
+0 0 0 0 0 5 1 4 43050104
+0 0 0 0 0 5 1 5 43050105
+0 0 0 0 0 5 1 6 43050106
+0 0 0 0 0 5 1 7 43050107
+0 0 0 0 0 5 1 8 43050108
+0 0 0 0 0 5 1 9 43050109
-"Time = 0.000000
--1.350000 43040100.0000000000000
--1.050000 43040101.0000000000000
--0.750000 43040102.0000000000000
--0.450000 43040103.0000000000000
--0.150000 43040104.0000000000000
-0.150000 43040105.0000000000000
-0.450000 43040106.0000000000000
-0.750000 43040107.0000000000000
-1.050000 43040108.0000000000000
-1.350000 43040109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 43050100
+1 0 0 0 0 5 1 1 43050101
+1 0 0 0 0 5 1 2 43050102
+1 0 0 0 0 5 1 3 43050103
+1 0 0 0 0 5 1 4 43050104
+1 0 0 0 0 5 1 5 43050105
+1 0 0 0 0 5 1 6 43050106
+1 0 0 0 0 5 1 7 43050107
+1 0 0 0 0 5 1 8 43050108
+1 0 0 0 0 5 1 9 43050109
+
-"Time = 1.000000
--1.350000 43040100.0000000000000
--1.050000 43040101.0000000000000
--0.750000 43040102.0000000000000
--0.450000 43040103.0000000000000
--0.150000 43040104.0000000000000
-0.150000 43040105.0000000000000
-0.450000 43040106.0000000000000
-0.750000 43040107.0000000000000
-1.050000 43040108.0000000000000
-1.350000 43040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/fyx.xl b/CarpetAttic/Cart3dTest/test/symmetric-y/fyx.xl
index 734d4de8f..b5d966b83 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/fyx.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/fyx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx x (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 44000105
+0 0 0 0 0 1 1 5 44010105
+0 0 0 0 0 2 1 5 44020105
+0 0 0 0 0 3 1 5 44030105
+0 0 0 0 0 4 1 5 44040105
+0 0 0 0 0 5 1 5 44050105
+0 0 0 0 0 6 1 5 44060105
+0 0 0 0 0 7 1 5 44070105
+0 0 0 0 0 8 1 5 44080105
+0 0 0 0 0 9 1 5 44090105
-"Time = 0.000000
--1.350000 44000104.0000000000000
--1.050000 44010104.0000000000000
--0.750000 44020104.0000000000000
--0.450000 44030104.0000000000000
--0.150000 44040104.0000000000000
-0.150000 44050104.0000000000000
-0.450000 44060104.0000000000000
-0.750000 44070104.0000000000000
-1.050000 44080104.0000000000000
-1.350000 44090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 44000105
+1 0 0 0 0 1 1 5 44010105
+1 0 0 0 0 2 1 5 44020105
+1 0 0 0 0 3 1 5 44030105
+1 0 0 0 0 4 1 5 44040105
+1 0 0 0 0 5 1 5 44050105
+1 0 0 0 0 6 1 5 44060105
+1 0 0 0 0 7 1 5 44070105
+1 0 0 0 0 8 1 5 44080105
+1 0 0 0 0 9 1 5 44090105
+
-"Time = 1.000000
--1.350000 44000104.0000000000000
--1.050000 44010104.0000000000000
--0.750000 44020104.0000000000000
--0.450000 44030104.0000000000000
--0.150000 44040104.0000000000000
-0.150000 44050104.0000000000000
-0.450000 44060104.0000000000000
-0.750000 44070104.0000000000000
-1.050000 44080104.0000000000000
-1.350000 44090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/fyx.yl b/CarpetAttic/Cart3dTest/test/symmetric-y/fyx.yl
index 4708a3a7b..0528fc92e 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/fyx.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/fyx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx y (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 44050005
+0 0 0 0 0 5 1 5 44050105
+0 0 0 0 0 5 2 5 44050205
+0 0 0 0 0 5 3 5 44050305
+0 0 0 0 0 5 4 5 44050405
+0 0 0 0 0 5 5 5 44050505
+0 0 0 0 0 5 6 5 44050605
+0 0 0 0 0 5 7 5 44050705
+0 0 0 0 0 5 8 5 44050805
+0 0 0 0 0 5 9 5 44050905
-"Time = 0.000000
--0.150000 44040004.0000000000000
-0.150000 44040104.0000000000000
-0.450000 44040204.0000000000000
-0.750000 44040304.0000000000000
-1.050000 44040404.0000000000000
-1.350000 44040504.0000000000000
-1.650000 44040604.0000000000000
-1.950000 44040704.0000000000000
-2.250000 44040804.0000000000000
-2.550000 44040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 -44050105
+1 0 0 0 0 5 1 5 44050105
+1 0 0 0 0 5 2 5 44050205
+1 0 0 0 0 5 3 5 44050305
+1 0 0 0 0 5 4 5 44050405
+1 0 0 0 0 5 5 5 44050505
+1 0 0 0 0 5 6 5 44050605
+1 0 0 0 0 5 7 5 44050705
+1 0 0 0 0 5 8 5 44050805
+1 0 0 0 0 5 9 5 44050905
+
-"Time = 1.000000
--0.150000 -44040104.0000000000000
-0.150000 44040104.0000000000000
-0.450000 44040204.0000000000000
-0.750000 44040304.0000000000000
-1.050000 44040404.0000000000000
-1.350000 44040504.0000000000000
-1.650000 44040604.0000000000000
-1.950000 44040704.0000000000000
-2.250000 44040804.0000000000000
-2.550000 44040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/fyx.zl b/CarpetAttic/Cart3dTest/test/symmetric-y/fyx.zl
index 36330852d..01e0f7bd2 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/fyx.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/fyx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx z (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 44050100
+0 0 0 0 0 5 1 1 44050101
+0 0 0 0 0 5 1 2 44050102
+0 0 0 0 0 5 1 3 44050103
+0 0 0 0 0 5 1 4 44050104
+0 0 0 0 0 5 1 5 44050105
+0 0 0 0 0 5 1 6 44050106
+0 0 0 0 0 5 1 7 44050107
+0 0 0 0 0 5 1 8 44050108
+0 0 0 0 0 5 1 9 44050109
-"Time = 0.000000
--1.350000 44040100.0000000000000
--1.050000 44040101.0000000000000
--0.750000 44040102.0000000000000
--0.450000 44040103.0000000000000
--0.150000 44040104.0000000000000
-0.150000 44040105.0000000000000
-0.450000 44040106.0000000000000
-0.750000 44040107.0000000000000
-1.050000 44040108.0000000000000
-1.350000 44040109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 44050100
+1 0 0 0 0 5 1 1 44050101
+1 0 0 0 0 5 1 2 44050102
+1 0 0 0 0 5 1 3 44050103
+1 0 0 0 0 5 1 4 44050104
+1 0 0 0 0 5 1 5 44050105
+1 0 0 0 0 5 1 6 44050106
+1 0 0 0 0 5 1 7 44050107
+1 0 0 0 0 5 1 8 44050108
+1 0 0 0 0 5 1 9 44050109
+
-"Time = 1.000000
--1.350000 44040100.0000000000000
--1.050000 44040101.0000000000000
--0.750000 44040102.0000000000000
--0.450000 44040103.0000000000000
--0.150000 44040104.0000000000000
-0.150000 44040105.0000000000000
-0.450000 44040106.0000000000000
-0.750000 44040107.0000000000000
-1.050000 44040108.0000000000000
-1.350000 44040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/fyy.xl b/CarpetAttic/Cart3dTest/test/symmetric-y/fyy.xl
index 6069811df..2d2270ab7 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/fyy.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/fyy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy x (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 45000105
+0 0 0 0 0 1 1 5 45010105
+0 0 0 0 0 2 1 5 45020105
+0 0 0 0 0 3 1 5 45030105
+0 0 0 0 0 4 1 5 45040105
+0 0 0 0 0 5 1 5 45050105
+0 0 0 0 0 6 1 5 45060105
+0 0 0 0 0 7 1 5 45070105
+0 0 0 0 0 8 1 5 45080105
+0 0 0 0 0 9 1 5 45090105
-"Time = 0.000000
--1.350000 45000104.0000000000000
--1.050000 45010104.0000000000000
--0.750000 45020104.0000000000000
--0.450000 45030104.0000000000000
--0.150000 45040104.0000000000000
-0.150000 45050104.0000000000000
-0.450000 45060104.0000000000000
-0.750000 45070104.0000000000000
-1.050000 45080104.0000000000000
-1.350000 45090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 45000105
+1 0 0 0 0 1 1 5 45010105
+1 0 0 0 0 2 1 5 45020105
+1 0 0 0 0 3 1 5 45030105
+1 0 0 0 0 4 1 5 45040105
+1 0 0 0 0 5 1 5 45050105
+1 0 0 0 0 6 1 5 45060105
+1 0 0 0 0 7 1 5 45070105
+1 0 0 0 0 8 1 5 45080105
+1 0 0 0 0 9 1 5 45090105
+
-"Time = 1.000000
--1.350000 45000104.0000000000000
--1.050000 45010104.0000000000000
--0.750000 45020104.0000000000000
--0.450000 45030104.0000000000000
--0.150000 45040104.0000000000000
-0.150000 45050104.0000000000000
-0.450000 45060104.0000000000000
-0.750000 45070104.0000000000000
-1.050000 45080104.0000000000000
-1.350000 45090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/fyy.yl b/CarpetAttic/Cart3dTest/test/symmetric-y/fyy.yl
index 56cdbf52d..97b6b9a93 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/fyy.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/fyy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy y (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 45050005
+0 0 0 0 0 5 1 5 45050105
+0 0 0 0 0 5 2 5 45050205
+0 0 0 0 0 5 3 5 45050305
+0 0 0 0 0 5 4 5 45050405
+0 0 0 0 0 5 5 5 45050505
+0 0 0 0 0 5 6 5 45050605
+0 0 0 0 0 5 7 5 45050705
+0 0 0 0 0 5 8 5 45050805
+0 0 0 0 0 5 9 5 45050905
-"Time = 0.000000
--0.150000 45040004.0000000000000
-0.150000 45040104.0000000000000
-0.450000 45040204.0000000000000
-0.750000 45040304.0000000000000
-1.050000 45040404.0000000000000
-1.350000 45040504.0000000000000
-1.650000 45040604.0000000000000
-1.950000 45040704.0000000000000
-2.250000 45040804.0000000000000
-2.550000 45040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 45050105
+1 0 0 0 0 5 1 5 45050105
+1 0 0 0 0 5 2 5 45050205
+1 0 0 0 0 5 3 5 45050305
+1 0 0 0 0 5 4 5 45050405
+1 0 0 0 0 5 5 5 45050505
+1 0 0 0 0 5 6 5 45050605
+1 0 0 0 0 5 7 5 45050705
+1 0 0 0 0 5 8 5 45050805
+1 0 0 0 0 5 9 5 45050905
+
-"Time = 1.000000
--0.150000 45040104.0000000000000
-0.150000 45040104.0000000000000
-0.450000 45040204.0000000000000
-0.750000 45040304.0000000000000
-1.050000 45040404.0000000000000
-1.350000 45040504.0000000000000
-1.650000 45040604.0000000000000
-1.950000 45040704.0000000000000
-2.250000 45040804.0000000000000
-2.550000 45040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/fyy.zl b/CarpetAttic/Cart3dTest/test/symmetric-y/fyy.zl
index eb8116d75..651d38b29 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/fyy.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/fyy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy z (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 45050100
+0 0 0 0 0 5 1 1 45050101
+0 0 0 0 0 5 1 2 45050102
+0 0 0 0 0 5 1 3 45050103
+0 0 0 0 0 5 1 4 45050104
+0 0 0 0 0 5 1 5 45050105
+0 0 0 0 0 5 1 6 45050106
+0 0 0 0 0 5 1 7 45050107
+0 0 0 0 0 5 1 8 45050108
+0 0 0 0 0 5 1 9 45050109
-"Time = 0.000000
--1.350000 45040100.0000000000000
--1.050000 45040101.0000000000000
--0.750000 45040102.0000000000000
--0.450000 45040103.0000000000000
--0.150000 45040104.0000000000000
-0.150000 45040105.0000000000000
-0.450000 45040106.0000000000000
-0.750000 45040107.0000000000000
-1.050000 45040108.0000000000000
-1.350000 45040109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 45050100
+1 0 0 0 0 5 1 1 45050101
+1 0 0 0 0 5 1 2 45050102
+1 0 0 0 0 5 1 3 45050103
+1 0 0 0 0 5 1 4 45050104
+1 0 0 0 0 5 1 5 45050105
+1 0 0 0 0 5 1 6 45050106
+1 0 0 0 0 5 1 7 45050107
+1 0 0 0 0 5 1 8 45050108
+1 0 0 0 0 5 1 9 45050109
+
-"Time = 1.000000
--1.350000 45040100.0000000000000
--1.050000 45040101.0000000000000
--0.750000 45040102.0000000000000
--0.450000 45040103.0000000000000
--0.150000 45040104.0000000000000
-0.150000 45040105.0000000000000
-0.450000 45040106.0000000000000
-0.750000 45040107.0000000000000
-1.050000 45040108.0000000000000
-1.350000 45040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/fyz.xl b/CarpetAttic/Cart3dTest/test/symmetric-y/fyz.xl
index 95d494f5b..1511cbd22 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/fyz.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/fyz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz x (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 46000105
+0 0 0 0 0 1 1 5 46010105
+0 0 0 0 0 2 1 5 46020105
+0 0 0 0 0 3 1 5 46030105
+0 0 0 0 0 4 1 5 46040105
+0 0 0 0 0 5 1 5 46050105
+0 0 0 0 0 6 1 5 46060105
+0 0 0 0 0 7 1 5 46070105
+0 0 0 0 0 8 1 5 46080105
+0 0 0 0 0 9 1 5 46090105
-"Time = 0.000000
--1.350000 46000104.0000000000000
--1.050000 46010104.0000000000000
--0.750000 46020104.0000000000000
--0.450000 46030104.0000000000000
--0.150000 46040104.0000000000000
-0.150000 46050104.0000000000000
-0.450000 46060104.0000000000000
-0.750000 46070104.0000000000000
-1.050000 46080104.0000000000000
-1.350000 46090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 46000105
+1 0 0 0 0 1 1 5 46010105
+1 0 0 0 0 2 1 5 46020105
+1 0 0 0 0 3 1 5 46030105
+1 0 0 0 0 4 1 5 46040105
+1 0 0 0 0 5 1 5 46050105
+1 0 0 0 0 6 1 5 46060105
+1 0 0 0 0 7 1 5 46070105
+1 0 0 0 0 8 1 5 46080105
+1 0 0 0 0 9 1 5 46090105
+
-"Time = 1.000000
--1.350000 46000104.0000000000000
--1.050000 46010104.0000000000000
--0.750000 46020104.0000000000000
--0.450000 46030104.0000000000000
--0.150000 46040104.0000000000000
-0.150000 46050104.0000000000000
-0.450000 46060104.0000000000000
-0.750000 46070104.0000000000000
-1.050000 46080104.0000000000000
-1.350000 46090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/fyz.yl b/CarpetAttic/Cart3dTest/test/symmetric-y/fyz.yl
index 505a962d4..3f903e75a 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/fyz.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/fyz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz y (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 46050005
+0 0 0 0 0 5 1 5 46050105
+0 0 0 0 0 5 2 5 46050205
+0 0 0 0 0 5 3 5 46050305
+0 0 0 0 0 5 4 5 46050405
+0 0 0 0 0 5 5 5 46050505
+0 0 0 0 0 5 6 5 46050605
+0 0 0 0 0 5 7 5 46050705
+0 0 0 0 0 5 8 5 46050805
+0 0 0 0 0 5 9 5 46050905
-"Time = 0.000000
--0.150000 46040004.0000000000000
-0.150000 46040104.0000000000000
-0.450000 46040204.0000000000000
-0.750000 46040304.0000000000000
-1.050000 46040404.0000000000000
-1.350000 46040504.0000000000000
-1.650000 46040604.0000000000000
-1.950000 46040704.0000000000000
-2.250000 46040804.0000000000000
-2.550000 46040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 -46050105
+1 0 0 0 0 5 1 5 46050105
+1 0 0 0 0 5 2 5 46050205
+1 0 0 0 0 5 3 5 46050305
+1 0 0 0 0 5 4 5 46050405
+1 0 0 0 0 5 5 5 46050505
+1 0 0 0 0 5 6 5 46050605
+1 0 0 0 0 5 7 5 46050705
+1 0 0 0 0 5 8 5 46050805
+1 0 0 0 0 5 9 5 46050905
+
-"Time = 1.000000
--0.150000 -46040104.0000000000000
-0.150000 46040104.0000000000000
-0.450000 46040204.0000000000000
-0.750000 46040304.0000000000000
-1.050000 46040404.0000000000000
-1.350000 46040504.0000000000000
-1.650000 46040604.0000000000000
-1.950000 46040704.0000000000000
-2.250000 46040804.0000000000000
-2.550000 46040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/fyz.zl b/CarpetAttic/Cart3dTest/test/symmetric-y/fyz.zl
index 50dc66b23..9be46f8b3 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/fyz.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/fyz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz z (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 46050100
+0 0 0 0 0 5 1 1 46050101
+0 0 0 0 0 5 1 2 46050102
+0 0 0 0 0 5 1 3 46050103
+0 0 0 0 0 5 1 4 46050104
+0 0 0 0 0 5 1 5 46050105
+0 0 0 0 0 5 1 6 46050106
+0 0 0 0 0 5 1 7 46050107
+0 0 0 0 0 5 1 8 46050108
+0 0 0 0 0 5 1 9 46050109
-"Time = 0.000000
--1.350000 46040100.0000000000000
--1.050000 46040101.0000000000000
--0.750000 46040102.0000000000000
--0.450000 46040103.0000000000000
--0.150000 46040104.0000000000000
-0.150000 46040105.0000000000000
-0.450000 46040106.0000000000000
-0.750000 46040107.0000000000000
-1.050000 46040108.0000000000000
-1.350000 46040109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 46050100
+1 0 0 0 0 5 1 1 46050101
+1 0 0 0 0 5 1 2 46050102
+1 0 0 0 0 5 1 3 46050103
+1 0 0 0 0 5 1 4 46050104
+1 0 0 0 0 5 1 5 46050105
+1 0 0 0 0 5 1 6 46050106
+1 0 0 0 0 5 1 7 46050107
+1 0 0 0 0 5 1 8 46050108
+1 0 0 0 0 5 1 9 46050109
+
-"Time = 1.000000
--1.350000 46040100.0000000000000
--1.050000 46040101.0000000000000
--0.750000 46040102.0000000000000
--0.450000 46040103.0000000000000
--0.150000 46040104.0000000000000
-0.150000 46040105.0000000000000
-0.450000 46040106.0000000000000
-0.750000 46040107.0000000000000
-1.050000 46040108.0000000000000
-1.350000 46040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/fzx.xl b/CarpetAttic/Cart3dTest/test/symmetric-y/fzx.xl
index da552e79d..7d5236a48 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/fzx.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/fzx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx x (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 47000105
+0 0 0 0 0 1 1 5 47010105
+0 0 0 0 0 2 1 5 47020105
+0 0 0 0 0 3 1 5 47030105
+0 0 0 0 0 4 1 5 47040105
+0 0 0 0 0 5 1 5 47050105
+0 0 0 0 0 6 1 5 47060105
+0 0 0 0 0 7 1 5 47070105
+0 0 0 0 0 8 1 5 47080105
+0 0 0 0 0 9 1 5 47090105
-"Time = 0.000000
--1.350000 47000104.0000000000000
--1.050000 47010104.0000000000000
--0.750000 47020104.0000000000000
--0.450000 47030104.0000000000000
--0.150000 47040104.0000000000000
-0.150000 47050104.0000000000000
-0.450000 47060104.0000000000000
-0.750000 47070104.0000000000000
-1.050000 47080104.0000000000000
-1.350000 47090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 47000105
+1 0 0 0 0 1 1 5 47010105
+1 0 0 0 0 2 1 5 47020105
+1 0 0 0 0 3 1 5 47030105
+1 0 0 0 0 4 1 5 47040105
+1 0 0 0 0 5 1 5 47050105
+1 0 0 0 0 6 1 5 47060105
+1 0 0 0 0 7 1 5 47070105
+1 0 0 0 0 8 1 5 47080105
+1 0 0 0 0 9 1 5 47090105
+
-"Time = 1.000000
--1.350000 47000104.0000000000000
--1.050000 47010104.0000000000000
--0.750000 47020104.0000000000000
--0.450000 47030104.0000000000000
--0.150000 47040104.0000000000000
-0.150000 47050104.0000000000000
-0.450000 47060104.0000000000000
-0.750000 47070104.0000000000000
-1.050000 47080104.0000000000000
-1.350000 47090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/fzx.yl b/CarpetAttic/Cart3dTest/test/symmetric-y/fzx.yl
index ba7dd87d0..9aa6f9177 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/fzx.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/fzx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx y (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 47050005
+0 0 0 0 0 5 1 5 47050105
+0 0 0 0 0 5 2 5 47050205
+0 0 0 0 0 5 3 5 47050305
+0 0 0 0 0 5 4 5 47050405
+0 0 0 0 0 5 5 5 47050505
+0 0 0 0 0 5 6 5 47050605
+0 0 0 0 0 5 7 5 47050705
+0 0 0 0 0 5 8 5 47050805
+0 0 0 0 0 5 9 5 47050905
-"Time = 0.000000
--0.150000 47040004.0000000000000
-0.150000 47040104.0000000000000
-0.450000 47040204.0000000000000
-0.750000 47040304.0000000000000
-1.050000 47040404.0000000000000
-1.350000 47040504.0000000000000
-1.650000 47040604.0000000000000
-1.950000 47040704.0000000000000
-2.250000 47040804.0000000000000
-2.550000 47040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 47050105
+1 0 0 0 0 5 1 5 47050105
+1 0 0 0 0 5 2 5 47050205
+1 0 0 0 0 5 3 5 47050305
+1 0 0 0 0 5 4 5 47050405
+1 0 0 0 0 5 5 5 47050505
+1 0 0 0 0 5 6 5 47050605
+1 0 0 0 0 5 7 5 47050705
+1 0 0 0 0 5 8 5 47050805
+1 0 0 0 0 5 9 5 47050905
+
-"Time = 1.000000
--0.150000 47040104.0000000000000
-0.150000 47040104.0000000000000
-0.450000 47040204.0000000000000
-0.750000 47040304.0000000000000
-1.050000 47040404.0000000000000
-1.350000 47040504.0000000000000
-1.650000 47040604.0000000000000
-1.950000 47040704.0000000000000
-2.250000 47040804.0000000000000
-2.550000 47040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/fzx.zl b/CarpetAttic/Cart3dTest/test/symmetric-y/fzx.zl
index f46b0c0ff..d8552c662 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/fzx.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/fzx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx z (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 47050100
+0 0 0 0 0 5 1 1 47050101
+0 0 0 0 0 5 1 2 47050102
+0 0 0 0 0 5 1 3 47050103
+0 0 0 0 0 5 1 4 47050104
+0 0 0 0 0 5 1 5 47050105
+0 0 0 0 0 5 1 6 47050106
+0 0 0 0 0 5 1 7 47050107
+0 0 0 0 0 5 1 8 47050108
+0 0 0 0 0 5 1 9 47050109
-"Time = 0.000000
--1.350000 47040100.0000000000000
--1.050000 47040101.0000000000000
--0.750000 47040102.0000000000000
--0.450000 47040103.0000000000000
--0.150000 47040104.0000000000000
-0.150000 47040105.0000000000000
-0.450000 47040106.0000000000000
-0.750000 47040107.0000000000000
-1.050000 47040108.0000000000000
-1.350000 47040109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 47050100
+1 0 0 0 0 5 1 1 47050101
+1 0 0 0 0 5 1 2 47050102
+1 0 0 0 0 5 1 3 47050103
+1 0 0 0 0 5 1 4 47050104
+1 0 0 0 0 5 1 5 47050105
+1 0 0 0 0 5 1 6 47050106
+1 0 0 0 0 5 1 7 47050107
+1 0 0 0 0 5 1 8 47050108
+1 0 0 0 0 5 1 9 47050109
+
-"Time = 1.000000
--1.350000 47040100.0000000000000
--1.050000 47040101.0000000000000
--0.750000 47040102.0000000000000
--0.450000 47040103.0000000000000
--0.150000 47040104.0000000000000
-0.150000 47040105.0000000000000
-0.450000 47040106.0000000000000
-0.750000 47040107.0000000000000
-1.050000 47040108.0000000000000
-1.350000 47040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/fzy.xl b/CarpetAttic/Cart3dTest/test/symmetric-y/fzy.xl
index 343c79c6f..ea27ee9fa 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/fzy.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/fzy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy x (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 48000105
+0 0 0 0 0 1 1 5 48010105
+0 0 0 0 0 2 1 5 48020105
+0 0 0 0 0 3 1 5 48030105
+0 0 0 0 0 4 1 5 48040105
+0 0 0 0 0 5 1 5 48050105
+0 0 0 0 0 6 1 5 48060105
+0 0 0 0 0 7 1 5 48070105
+0 0 0 0 0 8 1 5 48080105
+0 0 0 0 0 9 1 5 48090105
-"Time = 0.000000
--1.350000 48000104.0000000000000
--1.050000 48010104.0000000000000
--0.750000 48020104.0000000000000
--0.450000 48030104.0000000000000
--0.150000 48040104.0000000000000
-0.150000 48050104.0000000000000
-0.450000 48060104.0000000000000
-0.750000 48070104.0000000000000
-1.050000 48080104.0000000000000
-1.350000 48090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 48000105
+1 0 0 0 0 1 1 5 48010105
+1 0 0 0 0 2 1 5 48020105
+1 0 0 0 0 3 1 5 48030105
+1 0 0 0 0 4 1 5 48040105
+1 0 0 0 0 5 1 5 48050105
+1 0 0 0 0 6 1 5 48060105
+1 0 0 0 0 7 1 5 48070105
+1 0 0 0 0 8 1 5 48080105
+1 0 0 0 0 9 1 5 48090105
+
-"Time = 1.000000
--1.350000 48000104.0000000000000
--1.050000 48010104.0000000000000
--0.750000 48020104.0000000000000
--0.450000 48030104.0000000000000
--0.150000 48040104.0000000000000
-0.150000 48050104.0000000000000
-0.450000 48060104.0000000000000
-0.750000 48070104.0000000000000
-1.050000 48080104.0000000000000
-1.350000 48090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/fzy.yl b/CarpetAttic/Cart3dTest/test/symmetric-y/fzy.yl
index 2aefe012f..8aa6dcd52 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/fzy.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/fzy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy y (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 48050005
+0 0 0 0 0 5 1 5 48050105
+0 0 0 0 0 5 2 5 48050205
+0 0 0 0 0 5 3 5 48050305
+0 0 0 0 0 5 4 5 48050405
+0 0 0 0 0 5 5 5 48050505
+0 0 0 0 0 5 6 5 48050605
+0 0 0 0 0 5 7 5 48050705
+0 0 0 0 0 5 8 5 48050805
+0 0 0 0 0 5 9 5 48050905
-"Time = 0.000000
--0.150000 48040004.0000000000000
-0.150000 48040104.0000000000000
-0.450000 48040204.0000000000000
-0.750000 48040304.0000000000000
-1.050000 48040404.0000000000000
-1.350000 48040504.0000000000000
-1.650000 48040604.0000000000000
-1.950000 48040704.0000000000000
-2.250000 48040804.0000000000000
-2.550000 48040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 -48050105
+1 0 0 0 0 5 1 5 48050105
+1 0 0 0 0 5 2 5 48050205
+1 0 0 0 0 5 3 5 48050305
+1 0 0 0 0 5 4 5 48050405
+1 0 0 0 0 5 5 5 48050505
+1 0 0 0 0 5 6 5 48050605
+1 0 0 0 0 5 7 5 48050705
+1 0 0 0 0 5 8 5 48050805
+1 0 0 0 0 5 9 5 48050905
+
-"Time = 1.000000
--0.150000 -48040104.0000000000000
-0.150000 48040104.0000000000000
-0.450000 48040204.0000000000000
-0.750000 48040304.0000000000000
-1.050000 48040404.0000000000000
-1.350000 48040504.0000000000000
-1.650000 48040604.0000000000000
-1.950000 48040704.0000000000000
-2.250000 48040804.0000000000000
-2.550000 48040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/fzy.zl b/CarpetAttic/Cart3dTest/test/symmetric-y/fzy.zl
index 30ab4d74b..b7d28d43f 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/fzy.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/fzy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy z (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 48050100
+0 0 0 0 0 5 1 1 48050101
+0 0 0 0 0 5 1 2 48050102
+0 0 0 0 0 5 1 3 48050103
+0 0 0 0 0 5 1 4 48050104
+0 0 0 0 0 5 1 5 48050105
+0 0 0 0 0 5 1 6 48050106
+0 0 0 0 0 5 1 7 48050107
+0 0 0 0 0 5 1 8 48050108
+0 0 0 0 0 5 1 9 48050109
-"Time = 0.000000
--1.350000 48040100.0000000000000
--1.050000 48040101.0000000000000
--0.750000 48040102.0000000000000
--0.450000 48040103.0000000000000
--0.150000 48040104.0000000000000
-0.150000 48040105.0000000000000
-0.450000 48040106.0000000000000
-0.750000 48040107.0000000000000
-1.050000 48040108.0000000000000
-1.350000 48040109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 48050100
+1 0 0 0 0 5 1 1 48050101
+1 0 0 0 0 5 1 2 48050102
+1 0 0 0 0 5 1 3 48050103
+1 0 0 0 0 5 1 4 48050104
+1 0 0 0 0 5 1 5 48050105
+1 0 0 0 0 5 1 6 48050106
+1 0 0 0 0 5 1 7 48050107
+1 0 0 0 0 5 1 8 48050108
+1 0 0 0 0 5 1 9 48050109
+
-"Time = 1.000000
--1.350000 48040100.0000000000000
--1.050000 48040101.0000000000000
--0.750000 48040102.0000000000000
--0.450000 48040103.0000000000000
--0.150000 48040104.0000000000000
-0.150000 48040105.0000000000000
-0.450000 48040106.0000000000000
-0.750000 48040107.0000000000000
-1.050000 48040108.0000000000000
-1.350000 48040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/fzz.xl b/CarpetAttic/Cart3dTest/test/symmetric-y/fzz.xl
index 9b5b04b9b..4a3af627e 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/fzz.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/fzz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz x (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 49000105
+0 0 0 0 0 1 1 5 49010105
+0 0 0 0 0 2 1 5 49020105
+0 0 0 0 0 3 1 5 49030105
+0 0 0 0 0 4 1 5 49040105
+0 0 0 0 0 5 1 5 49050105
+0 0 0 0 0 6 1 5 49060105
+0 0 0 0 0 7 1 5 49070105
+0 0 0 0 0 8 1 5 49080105
+0 0 0 0 0 9 1 5 49090105
-"Time = 0.000000
--1.350000 49000104.0000000000000
--1.050000 49010104.0000000000000
--0.750000 49020104.0000000000000
--0.450000 49030104.0000000000000
--0.150000 49040104.0000000000000
-0.150000 49050104.0000000000000
-0.450000 49060104.0000000000000
-0.750000 49070104.0000000000000
-1.050000 49080104.0000000000000
-1.350000 49090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 49000105
+1 0 0 0 0 1 1 5 49010105
+1 0 0 0 0 2 1 5 49020105
+1 0 0 0 0 3 1 5 49030105
+1 0 0 0 0 4 1 5 49040105
+1 0 0 0 0 5 1 5 49050105
+1 0 0 0 0 6 1 5 49060105
+1 0 0 0 0 7 1 5 49070105
+1 0 0 0 0 8 1 5 49080105
+1 0 0 0 0 9 1 5 49090105
+
-"Time = 1.000000
--1.350000 49000104.0000000000000
--1.050000 49010104.0000000000000
--0.750000 49020104.0000000000000
--0.450000 49030104.0000000000000
--0.150000 49040104.0000000000000
-0.150000 49050104.0000000000000
-0.450000 49060104.0000000000000
-0.750000 49070104.0000000000000
-1.050000 49080104.0000000000000
-1.350000 49090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/fzz.yl b/CarpetAttic/Cart3dTest/test/symmetric-y/fzz.yl
index d4a7a3b97..0bdf6f110 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/fzz.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/fzz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz y (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 49050005
+0 0 0 0 0 5 1 5 49050105
+0 0 0 0 0 5 2 5 49050205
+0 0 0 0 0 5 3 5 49050305
+0 0 0 0 0 5 4 5 49050405
+0 0 0 0 0 5 5 5 49050505
+0 0 0 0 0 5 6 5 49050605
+0 0 0 0 0 5 7 5 49050705
+0 0 0 0 0 5 8 5 49050805
+0 0 0 0 0 5 9 5 49050905
-"Time = 0.000000
--0.150000 49040004.0000000000000
-0.150000 49040104.0000000000000
-0.450000 49040204.0000000000000
-0.750000 49040304.0000000000000
-1.050000 49040404.0000000000000
-1.350000 49040504.0000000000000
-1.650000 49040604.0000000000000
-1.950000 49040704.0000000000000
-2.250000 49040804.0000000000000
-2.550000 49040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 49050105
+1 0 0 0 0 5 1 5 49050105
+1 0 0 0 0 5 2 5 49050205
+1 0 0 0 0 5 3 5 49050305
+1 0 0 0 0 5 4 5 49050405
+1 0 0 0 0 5 5 5 49050505
+1 0 0 0 0 5 6 5 49050605
+1 0 0 0 0 5 7 5 49050705
+1 0 0 0 0 5 8 5 49050805
+1 0 0 0 0 5 9 5 49050905
+
-"Time = 1.000000
--0.150000 49040104.0000000000000
-0.150000 49040104.0000000000000
-0.450000 49040204.0000000000000
-0.750000 49040304.0000000000000
-1.050000 49040404.0000000000000
-1.350000 49040504.0000000000000
-1.650000 49040604.0000000000000
-1.950000 49040704.0000000000000
-2.250000 49040804.0000000000000
-2.550000 49040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/fzz.zl b/CarpetAttic/Cart3dTest/test/symmetric-y/fzz.zl
index 145bacf81..a338649d3 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/fzz.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/fzz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz z (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 49050100
+0 0 0 0 0 5 1 1 49050101
+0 0 0 0 0 5 1 2 49050102
+0 0 0 0 0 5 1 3 49050103
+0 0 0 0 0 5 1 4 49050104
+0 0 0 0 0 5 1 5 49050105
+0 0 0 0 0 5 1 6 49050106
+0 0 0 0 0 5 1 7 49050107
+0 0 0 0 0 5 1 8 49050108
+0 0 0 0 0 5 1 9 49050109
-"Time = 0.000000
--1.350000 49040100.0000000000000
--1.050000 49040101.0000000000000
--0.750000 49040102.0000000000000
--0.450000 49040103.0000000000000
--0.150000 49040104.0000000000000
-0.150000 49040105.0000000000000
-0.450000 49040106.0000000000000
-0.750000 49040107.0000000000000
-1.050000 49040108.0000000000000
-1.350000 49040109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 49050100
+1 0 0 0 0 5 1 1 49050101
+1 0 0 0 0 5 1 2 49050102
+1 0 0 0 0 5 1 3 49050103
+1 0 0 0 0 5 1 4 49050104
+1 0 0 0 0 5 1 5 49050105
+1 0 0 0 0 5 1 6 49050106
+1 0 0 0 0 5 1 7 49050107
+1 0 0 0 0 5 1 8 49050108
+1 0 0 0 0 5 1 9 49050109
+
-"Time = 1.000000
--1.350000 49040100.0000000000000
--1.050000 49040101.0000000000000
--0.750000 49040102.0000000000000
--0.450000 49040103.0000000000000
--0.150000 49040104.0000000000000
-0.150000 49040105.0000000000000
-0.450000 49040106.0000000000000
-0.750000 49040107.0000000000000
-1.050000 49040108.0000000000000
-1.350000 49040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/s.xl b/CarpetAttic/Cart3dTest/test/symmetric-y/s.xl
index e8d6ed6f3..fdf407fcd 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/s.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/s.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::s x (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 1000105
+0 0 0 0 0 1 1 5 1010105
+0 0 0 0 0 2 1 5 1020105
+0 0 0 0 0 3 1 5 1030105
+0 0 0 0 0 4 1 5 1040105
+0 0 0 0 0 5 1 5 1050105
+0 0 0 0 0 6 1 5 1060105
+0 0 0 0 0 7 1 5 1070105
+0 0 0 0 0 8 1 5 1080105
+0 0 0 0 0 9 1 5 1090105
-"Time = 0.000000
--1.350000 1000104.0000000000000
--1.050000 1010104.0000000000000
--0.750000 1020104.0000000000000
--0.450000 1030104.0000000000000
--0.150000 1040104.0000000000000
-0.150000 1050104.0000000000000
-0.450000 1060104.0000000000000
-0.750000 1070104.0000000000000
-1.050000 1080104.0000000000000
-1.350000 1090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 1000105
+1 0 0 0 0 1 1 5 1010105
+1 0 0 0 0 2 1 5 1020105
+1 0 0 0 0 3 1 5 1030105
+1 0 0 0 0 4 1 5 1040105
+1 0 0 0 0 5 1 5 1050105
+1 0 0 0 0 6 1 5 1060105
+1 0 0 0 0 7 1 5 1070105
+1 0 0 0 0 8 1 5 1080105
+1 0 0 0 0 9 1 5 1090105
+
-"Time = 1.000000
--1.350000 1000104.0000000000000
--1.050000 1010104.0000000000000
--0.750000 1020104.0000000000000
--0.450000 1030104.0000000000000
--0.150000 1040104.0000000000000
-0.150000 1050104.0000000000000
-0.450000 1060104.0000000000000
-0.750000 1070104.0000000000000
-1.050000 1080104.0000000000000
-1.350000 1090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/s.yl b/CarpetAttic/Cart3dTest/test/symmetric-y/s.yl
index fbc48a3bb..487134344 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/s.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/s.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::s y (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 1050005
+0 0 0 0 0 5 1 5 1050105
+0 0 0 0 0 5 2 5 1050205
+0 0 0 0 0 5 3 5 1050305
+0 0 0 0 0 5 4 5 1050405
+0 0 0 0 0 5 5 5 1050505
+0 0 0 0 0 5 6 5 1050605
+0 0 0 0 0 5 7 5 1050705
+0 0 0 0 0 5 8 5 1050805
+0 0 0 0 0 5 9 5 1050905
-"Time = 0.000000
--0.150000 1040004.0000000000000
-0.150000 1040104.0000000000000
-0.450000 1040204.0000000000000
-0.750000 1040304.0000000000000
-1.050000 1040404.0000000000000
-1.350000 1040504.0000000000000
-1.650000 1040604.0000000000000
-1.950000 1040704.0000000000000
-2.250000 1040804.0000000000000
-2.550000 1040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 1050105
+1 0 0 0 0 5 1 5 1050105
+1 0 0 0 0 5 2 5 1050205
+1 0 0 0 0 5 3 5 1050305
+1 0 0 0 0 5 4 5 1050405
+1 0 0 0 0 5 5 5 1050505
+1 0 0 0 0 5 6 5 1050605
+1 0 0 0 0 5 7 5 1050705
+1 0 0 0 0 5 8 5 1050805
+1 0 0 0 0 5 9 5 1050905
+
-"Time = 1.000000
--0.150000 1040104.0000000000000
-0.150000 1040104.0000000000000
-0.450000 1040204.0000000000000
-0.750000 1040304.0000000000000
-1.050000 1040404.0000000000000
-1.350000 1040504.0000000000000
-1.650000 1040604.0000000000000
-1.950000 1040704.0000000000000
-2.250000 1040804.0000000000000
-2.550000 1040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/s.zl b/CarpetAttic/Cart3dTest/test/symmetric-y/s.zl
index 96fa25d4b..de98dc5c6 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/s.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/s.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::s z (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 1050100
+0 0 0 0 0 5 1 1 1050101
+0 0 0 0 0 5 1 2 1050102
+0 0 0 0 0 5 1 3 1050103
+0 0 0 0 0 5 1 4 1050104
+0 0 0 0 0 5 1 5 1050105
+0 0 0 0 0 5 1 6 1050106
+0 0 0 0 0 5 1 7 1050107
+0 0 0 0 0 5 1 8 1050108
+0 0 0 0 0 5 1 9 1050109
-"Time = 0.000000
--1.350000 1040100.0000000000000
--1.050000 1040101.0000000000000
--0.750000 1040102.0000000000000
--0.450000 1040103.0000000000000
--0.150000 1040104.0000000000000
-0.150000 1040105.0000000000000
-0.450000 1040106.0000000000000
-0.750000 1040107.0000000000000
-1.050000 1040108.0000000000000
-1.350000 1040109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 1050100
+1 0 0 0 0 5 1 1 1050101
+1 0 0 0 0 5 1 2 1050102
+1 0 0 0 0 5 1 3 1050103
+1 0 0 0 0 5 1 4 1050104
+1 0 0 0 0 5 1 5 1050105
+1 0 0 0 0 5 1 6 1050106
+1 0 0 0 0 5 1 7 1050107
+1 0 0 0 0 5 1 8 1050108
+1 0 0 0 0 5 1 9 1050109
+
-"Time = 1.000000
--1.350000 1040100.0000000000000
--1.050000 1040101.0000000000000
--0.750000 1040102.0000000000000
--0.450000 1040103.0000000000000
--0.150000 1040104.0000000000000
-0.150000 1040105.0000000000000
-0.450000 1040106.0000000000000
-0.750000 1040107.0000000000000
-1.050000 1040108.0000000000000
-1.350000 1040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/spher3d_r.xl b/CarpetAttic/Cart3dTest/test/symmetric-y/spher3d_r.xl
index 2865c92e4..2a1ce0755 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/spher3d_r.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/spher3d_r.xl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r x (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 1.36656503687164
+0 0 0 0 0 1 1 5 1.07121426428143
+0 0 0 0 0 2 1 5 0.779422863405995
+0 0 0 0 0 3 1 5 0.49749371855331
+0 0 0 0 0 4 1 5 0.259807621135332
+0 0 0 0 0 5 1 5 0.259807621135332
+0 0 0 0 0 6 1 5 0.49749371855331
+0 0 0 0 0 7 1 5 0.779422863405995
+0 0 0 0 0 8 1 5 1.07121426428143
+0 0 0 0 0 9 1 5 1.36656503687164
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 1.36656503687164
+1 0 0 0 0 1 1 5 1.07121426428143
+1 0 0 0 0 2 1 5 0.779422863405995
+1 0 0 0 0 3 1 5 0.49749371855331
+1 0 0 0 0 4 1 5 0.259807621135332
+1 0 0 0 0 5 1 5 0.259807621135332
+1 0 0 0 0 6 1 5 0.49749371855331
+1 0 0 0 0 7 1 5 0.779422863405995
+1 0 0 0 0 8 1 5 1.07121426428143
+1 0 0 0 0 9 1 5 1.36656503687164
+
-"Time = 1.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/spher3d_r.yl b/CarpetAttic/Cart3dTest/test/symmetric-y/spher3d_r.yl
index aab231952..b51cbc42d 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/spher3d_r.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/spher3d_r.yl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r y (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 0.259807621135332
+0 0 0 0 0 5 1 5 0.259807621135332
+0 0 0 0 0 5 2 5 0.49749371855331
+0 0 0 0 0 5 3 5 0.779422863405995
+0 0 0 0 0 5 4 5 1.07121426428143
+0 0 0 0 0 5 5 5 1.36656503687164
+0 0 0 0 0 5 6 5 1.66358047596141
+0 0 0 0 0 5 7 5 1.9615045245933
+0 0 0 0 0 5 8 5 2.2599778759979
+0 0 0 0 0 5 9 5 2.5588083163848
-"Time = 0.000000
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
-2.550000 2.5588083163848
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 0.259807621135332
+1 0 0 0 0 5 1 5 0.259807621135332
+1 0 0 0 0 5 2 5 0.49749371855331
+1 0 0 0 0 5 3 5 0.779422863405995
+1 0 0 0 0 5 4 5 1.07121426428143
+1 0 0 0 0 5 5 5 1.36656503687164
+1 0 0 0 0 5 6 5 1.66358047596141
+1 0 0 0 0 5 7 5 1.9615045245933
+1 0 0 0 0 5 8 5 2.2599778759979
+1 0 0 0 0 5 9 5 2.5588083163848
+
-"Time = 1.000000
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
-2.550000 2.5588083163848
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/spher3d_r.zl b/CarpetAttic/Cart3dTest/test/symmetric-y/spher3d_r.zl
index 2865c92e4..63de1180d 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/spher3d_r.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/spher3d_r.zl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r z (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 1.36656503687164
+0 0 0 0 0 5 1 1 1.07121426428143
+0 0 0 0 0 5 1 2 0.779422863405995
+0 0 0 0 0 5 1 3 0.49749371855331
+0 0 0 0 0 5 1 4 0.259807621135332
+0 0 0 0 0 5 1 5 0.259807621135332
+0 0 0 0 0 5 1 6 0.49749371855331
+0 0 0 0 0 5 1 7 0.779422863405995
+0 0 0 0 0 5 1 8 1.07121426428143
+0 0 0 0 0 5 1 9 1.36656503687164
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 1.36656503687164
+1 0 0 0 0 5 1 1 1.07121426428143
+1 0 0 0 0 5 1 2 0.779422863405995
+1 0 0 0 0 5 1 3 0.49749371855331
+1 0 0 0 0 5 1 4 0.259807621135332
+1 0 0 0 0 5 1 5 0.259807621135332
+1 0 0 0 0 5 1 6 0.49749371855331
+1 0 0 0 0 5 1 7 0.779422863405995
+1 0 0 0 0 5 1 8 1.07121426428143
+1 0 0 0 0 5 1 9 1.36656503687164
+
-"Time = 1.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/txx.xl b/CarpetAttic/Cart3dTest/test/symmetric-y/txx.xl
index e8b238e4e..b285daee6 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/txx.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/txx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx x (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 21000105
+0 0 0 0 0 1 1 5 21010105
+0 0 0 0 0 2 1 5 21020105
+0 0 0 0 0 3 1 5 21030105
+0 0 0 0 0 4 1 5 21040105
+0 0 0 0 0 5 1 5 21050105
+0 0 0 0 0 6 1 5 21060105
+0 0 0 0 0 7 1 5 21070105
+0 0 0 0 0 8 1 5 21080105
+0 0 0 0 0 9 1 5 21090105
-"Time = 0.000000
--1.350000 21000104.0000000000000
--1.050000 21010104.0000000000000
--0.750000 21020104.0000000000000
--0.450000 21030104.0000000000000
--0.150000 21040104.0000000000000
-0.150000 21050104.0000000000000
-0.450000 21060104.0000000000000
-0.750000 21070104.0000000000000
-1.050000 21080104.0000000000000
-1.350000 21090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 21000105
+1 0 0 0 0 1 1 5 21010105
+1 0 0 0 0 2 1 5 21020105
+1 0 0 0 0 3 1 5 21030105
+1 0 0 0 0 4 1 5 21040105
+1 0 0 0 0 5 1 5 21050105
+1 0 0 0 0 6 1 5 21060105
+1 0 0 0 0 7 1 5 21070105
+1 0 0 0 0 8 1 5 21080105
+1 0 0 0 0 9 1 5 21090105
+
-"Time = 1.000000
--1.350000 21000104.0000000000000
--1.050000 21010104.0000000000000
--0.750000 21020104.0000000000000
--0.450000 21030104.0000000000000
--0.150000 21040104.0000000000000
-0.150000 21050104.0000000000000
-0.450000 21060104.0000000000000
-0.750000 21070104.0000000000000
-1.050000 21080104.0000000000000
-1.350000 21090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/txx.yl b/CarpetAttic/Cart3dTest/test/symmetric-y/txx.yl
index 804373610..a8923988c 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/txx.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/txx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx y (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 21050005
+0 0 0 0 0 5 1 5 21050105
+0 0 0 0 0 5 2 5 21050205
+0 0 0 0 0 5 3 5 21050305
+0 0 0 0 0 5 4 5 21050405
+0 0 0 0 0 5 5 5 21050505
+0 0 0 0 0 5 6 5 21050605
+0 0 0 0 0 5 7 5 21050705
+0 0 0 0 0 5 8 5 21050805
+0 0 0 0 0 5 9 5 21050905
-"Time = 0.000000
--0.150000 21040004.0000000000000
-0.150000 21040104.0000000000000
-0.450000 21040204.0000000000000
-0.750000 21040304.0000000000000
-1.050000 21040404.0000000000000
-1.350000 21040504.0000000000000
-1.650000 21040604.0000000000000
-1.950000 21040704.0000000000000
-2.250000 21040804.0000000000000
-2.550000 21040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 21050105
+1 0 0 0 0 5 1 5 21050105
+1 0 0 0 0 5 2 5 21050205
+1 0 0 0 0 5 3 5 21050305
+1 0 0 0 0 5 4 5 21050405
+1 0 0 0 0 5 5 5 21050505
+1 0 0 0 0 5 6 5 21050605
+1 0 0 0 0 5 7 5 21050705
+1 0 0 0 0 5 8 5 21050805
+1 0 0 0 0 5 9 5 21050905
+
-"Time = 1.000000
--0.150000 21040104.0000000000000
-0.150000 21040104.0000000000000
-0.450000 21040204.0000000000000
-0.750000 21040304.0000000000000
-1.050000 21040404.0000000000000
-1.350000 21040504.0000000000000
-1.650000 21040604.0000000000000
-1.950000 21040704.0000000000000
-2.250000 21040804.0000000000000
-2.550000 21040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/txx.zl b/CarpetAttic/Cart3dTest/test/symmetric-y/txx.zl
index 05bd4255c..ca123edd0 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/txx.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/txx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx z (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 21050100
+0 0 0 0 0 5 1 1 21050101
+0 0 0 0 0 5 1 2 21050102
+0 0 0 0 0 5 1 3 21050103
+0 0 0 0 0 5 1 4 21050104
+0 0 0 0 0 5 1 5 21050105
+0 0 0 0 0 5 1 6 21050106
+0 0 0 0 0 5 1 7 21050107
+0 0 0 0 0 5 1 8 21050108
+0 0 0 0 0 5 1 9 21050109
-"Time = 0.000000
--1.350000 21040100.0000000000000
--1.050000 21040101.0000000000000
--0.750000 21040102.0000000000000
--0.450000 21040103.0000000000000
--0.150000 21040104.0000000000000
-0.150000 21040105.0000000000000
-0.450000 21040106.0000000000000
-0.750000 21040107.0000000000000
-1.050000 21040108.0000000000000
-1.350000 21040109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 21050100
+1 0 0 0 0 5 1 1 21050101
+1 0 0 0 0 5 1 2 21050102
+1 0 0 0 0 5 1 3 21050103
+1 0 0 0 0 5 1 4 21050104
+1 0 0 0 0 5 1 5 21050105
+1 0 0 0 0 5 1 6 21050106
+1 0 0 0 0 5 1 7 21050107
+1 0 0 0 0 5 1 8 21050108
+1 0 0 0 0 5 1 9 21050109
+
-"Time = 1.000000
--1.350000 21040100.0000000000000
--1.050000 21040101.0000000000000
--0.750000 21040102.0000000000000
--0.450000 21040103.0000000000000
--0.150000 21040104.0000000000000
-0.150000 21040105.0000000000000
-0.450000 21040106.0000000000000
-0.750000 21040107.0000000000000
-1.050000 21040108.0000000000000
-1.350000 21040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/txy.xl b/CarpetAttic/Cart3dTest/test/symmetric-y/txy.xl
index 1269d4fbf..0c86c4ec1 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/txy.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/txy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy x (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 22000105
+0 0 0 0 0 1 1 5 22010105
+0 0 0 0 0 2 1 5 22020105
+0 0 0 0 0 3 1 5 22030105
+0 0 0 0 0 4 1 5 22040105
+0 0 0 0 0 5 1 5 22050105
+0 0 0 0 0 6 1 5 22060105
+0 0 0 0 0 7 1 5 22070105
+0 0 0 0 0 8 1 5 22080105
+0 0 0 0 0 9 1 5 22090105
-"Time = 0.000000
--1.350000 22000104.0000000000000
--1.050000 22010104.0000000000000
--0.750000 22020104.0000000000000
--0.450000 22030104.0000000000000
--0.150000 22040104.0000000000000
-0.150000 22050104.0000000000000
-0.450000 22060104.0000000000000
-0.750000 22070104.0000000000000
-1.050000 22080104.0000000000000
-1.350000 22090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 22000105
+1 0 0 0 0 1 1 5 22010105
+1 0 0 0 0 2 1 5 22020105
+1 0 0 0 0 3 1 5 22030105
+1 0 0 0 0 4 1 5 22040105
+1 0 0 0 0 5 1 5 22050105
+1 0 0 0 0 6 1 5 22060105
+1 0 0 0 0 7 1 5 22070105
+1 0 0 0 0 8 1 5 22080105
+1 0 0 0 0 9 1 5 22090105
+
-"Time = 1.000000
--1.350000 22000104.0000000000000
--1.050000 22010104.0000000000000
--0.750000 22020104.0000000000000
--0.450000 22030104.0000000000000
--0.150000 22040104.0000000000000
-0.150000 22050104.0000000000000
-0.450000 22060104.0000000000000
-0.750000 22070104.0000000000000
-1.050000 22080104.0000000000000
-1.350000 22090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/txy.yl b/CarpetAttic/Cart3dTest/test/symmetric-y/txy.yl
index 262c1cc87..bf7bc2966 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/txy.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/txy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy y (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 22050005
+0 0 0 0 0 5 1 5 22050105
+0 0 0 0 0 5 2 5 22050205
+0 0 0 0 0 5 3 5 22050305
+0 0 0 0 0 5 4 5 22050405
+0 0 0 0 0 5 5 5 22050505
+0 0 0 0 0 5 6 5 22050605
+0 0 0 0 0 5 7 5 22050705
+0 0 0 0 0 5 8 5 22050805
+0 0 0 0 0 5 9 5 22050905
-"Time = 0.000000
--0.150000 22040004.0000000000000
-0.150000 22040104.0000000000000
-0.450000 22040204.0000000000000
-0.750000 22040304.0000000000000
-1.050000 22040404.0000000000000
-1.350000 22040504.0000000000000
-1.650000 22040604.0000000000000
-1.950000 22040704.0000000000000
-2.250000 22040804.0000000000000
-2.550000 22040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 -22050105
+1 0 0 0 0 5 1 5 22050105
+1 0 0 0 0 5 2 5 22050205
+1 0 0 0 0 5 3 5 22050305
+1 0 0 0 0 5 4 5 22050405
+1 0 0 0 0 5 5 5 22050505
+1 0 0 0 0 5 6 5 22050605
+1 0 0 0 0 5 7 5 22050705
+1 0 0 0 0 5 8 5 22050805
+1 0 0 0 0 5 9 5 22050905
+
-"Time = 1.000000
--0.150000 -22040104.0000000000000
-0.150000 22040104.0000000000000
-0.450000 22040204.0000000000000
-0.750000 22040304.0000000000000
-1.050000 22040404.0000000000000
-1.350000 22040504.0000000000000
-1.650000 22040604.0000000000000
-1.950000 22040704.0000000000000
-2.250000 22040804.0000000000000
-2.550000 22040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/txy.zl b/CarpetAttic/Cart3dTest/test/symmetric-y/txy.zl
index 304b89686..bb5aa28ee 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/txy.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/txy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy z (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 22050100
+0 0 0 0 0 5 1 1 22050101
+0 0 0 0 0 5 1 2 22050102
+0 0 0 0 0 5 1 3 22050103
+0 0 0 0 0 5 1 4 22050104
+0 0 0 0 0 5 1 5 22050105
+0 0 0 0 0 5 1 6 22050106
+0 0 0 0 0 5 1 7 22050107
+0 0 0 0 0 5 1 8 22050108
+0 0 0 0 0 5 1 9 22050109
-"Time = 0.000000
--1.350000 22040100.0000000000000
--1.050000 22040101.0000000000000
--0.750000 22040102.0000000000000
--0.450000 22040103.0000000000000
--0.150000 22040104.0000000000000
-0.150000 22040105.0000000000000
-0.450000 22040106.0000000000000
-0.750000 22040107.0000000000000
-1.050000 22040108.0000000000000
-1.350000 22040109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 22050100
+1 0 0 0 0 5 1 1 22050101
+1 0 0 0 0 5 1 2 22050102
+1 0 0 0 0 5 1 3 22050103
+1 0 0 0 0 5 1 4 22050104
+1 0 0 0 0 5 1 5 22050105
+1 0 0 0 0 5 1 6 22050106
+1 0 0 0 0 5 1 7 22050107
+1 0 0 0 0 5 1 8 22050108
+1 0 0 0 0 5 1 9 22050109
+
-"Time = 1.000000
--1.350000 22040100.0000000000000
--1.050000 22040101.0000000000000
--0.750000 22040102.0000000000000
--0.450000 22040103.0000000000000
--0.150000 22040104.0000000000000
-0.150000 22040105.0000000000000
-0.450000 22040106.0000000000000
-0.750000 22040107.0000000000000
-1.050000 22040108.0000000000000
-1.350000 22040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/txz.xl b/CarpetAttic/Cart3dTest/test/symmetric-y/txz.xl
index 82f282384..faacecdad 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/txz.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/txz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz x (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 23000105
+0 0 0 0 0 1 1 5 23010105
+0 0 0 0 0 2 1 5 23020105
+0 0 0 0 0 3 1 5 23030105
+0 0 0 0 0 4 1 5 23040105
+0 0 0 0 0 5 1 5 23050105
+0 0 0 0 0 6 1 5 23060105
+0 0 0 0 0 7 1 5 23070105
+0 0 0 0 0 8 1 5 23080105
+0 0 0 0 0 9 1 5 23090105
-"Time = 0.000000
--1.350000 23000104.0000000000000
--1.050000 23010104.0000000000000
--0.750000 23020104.0000000000000
--0.450000 23030104.0000000000000
--0.150000 23040104.0000000000000
-0.150000 23050104.0000000000000
-0.450000 23060104.0000000000000
-0.750000 23070104.0000000000000
-1.050000 23080104.0000000000000
-1.350000 23090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 23000105
+1 0 0 0 0 1 1 5 23010105
+1 0 0 0 0 2 1 5 23020105
+1 0 0 0 0 3 1 5 23030105
+1 0 0 0 0 4 1 5 23040105
+1 0 0 0 0 5 1 5 23050105
+1 0 0 0 0 6 1 5 23060105
+1 0 0 0 0 7 1 5 23070105
+1 0 0 0 0 8 1 5 23080105
+1 0 0 0 0 9 1 5 23090105
+
-"Time = 1.000000
--1.350000 23000104.0000000000000
--1.050000 23010104.0000000000000
--0.750000 23020104.0000000000000
--0.450000 23030104.0000000000000
--0.150000 23040104.0000000000000
-0.150000 23050104.0000000000000
-0.450000 23060104.0000000000000
-0.750000 23070104.0000000000000
-1.050000 23080104.0000000000000
-1.350000 23090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/txz.yl b/CarpetAttic/Cart3dTest/test/symmetric-y/txz.yl
index b6b38dbf3..faf58ca85 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/txz.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/txz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz y (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 23050005
+0 0 0 0 0 5 1 5 23050105
+0 0 0 0 0 5 2 5 23050205
+0 0 0 0 0 5 3 5 23050305
+0 0 0 0 0 5 4 5 23050405
+0 0 0 0 0 5 5 5 23050505
+0 0 0 0 0 5 6 5 23050605
+0 0 0 0 0 5 7 5 23050705
+0 0 0 0 0 5 8 5 23050805
+0 0 0 0 0 5 9 5 23050905
-"Time = 0.000000
--0.150000 23040004.0000000000000
-0.150000 23040104.0000000000000
-0.450000 23040204.0000000000000
-0.750000 23040304.0000000000000
-1.050000 23040404.0000000000000
-1.350000 23040504.0000000000000
-1.650000 23040604.0000000000000
-1.950000 23040704.0000000000000
-2.250000 23040804.0000000000000
-2.550000 23040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 23050105
+1 0 0 0 0 5 1 5 23050105
+1 0 0 0 0 5 2 5 23050205
+1 0 0 0 0 5 3 5 23050305
+1 0 0 0 0 5 4 5 23050405
+1 0 0 0 0 5 5 5 23050505
+1 0 0 0 0 5 6 5 23050605
+1 0 0 0 0 5 7 5 23050705
+1 0 0 0 0 5 8 5 23050805
+1 0 0 0 0 5 9 5 23050905
+
-"Time = 1.000000
--0.150000 23040104.0000000000000
-0.150000 23040104.0000000000000
-0.450000 23040204.0000000000000
-0.750000 23040304.0000000000000
-1.050000 23040404.0000000000000
-1.350000 23040504.0000000000000
-1.650000 23040604.0000000000000
-1.950000 23040704.0000000000000
-2.250000 23040804.0000000000000
-2.550000 23040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/txz.zl b/CarpetAttic/Cart3dTest/test/symmetric-y/txz.zl
index 6fe6cfae5..765d4f62e 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/txz.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/txz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz z (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 23050100
+0 0 0 0 0 5 1 1 23050101
+0 0 0 0 0 5 1 2 23050102
+0 0 0 0 0 5 1 3 23050103
+0 0 0 0 0 5 1 4 23050104
+0 0 0 0 0 5 1 5 23050105
+0 0 0 0 0 5 1 6 23050106
+0 0 0 0 0 5 1 7 23050107
+0 0 0 0 0 5 1 8 23050108
+0 0 0 0 0 5 1 9 23050109
-"Time = 0.000000
--1.350000 23040100.0000000000000
--1.050000 23040101.0000000000000
--0.750000 23040102.0000000000000
--0.450000 23040103.0000000000000
--0.150000 23040104.0000000000000
-0.150000 23040105.0000000000000
-0.450000 23040106.0000000000000
-0.750000 23040107.0000000000000
-1.050000 23040108.0000000000000
-1.350000 23040109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 23050100
+1 0 0 0 0 5 1 1 23050101
+1 0 0 0 0 5 1 2 23050102
+1 0 0 0 0 5 1 3 23050103
+1 0 0 0 0 5 1 4 23050104
+1 0 0 0 0 5 1 5 23050105
+1 0 0 0 0 5 1 6 23050106
+1 0 0 0 0 5 1 7 23050107
+1 0 0 0 0 5 1 8 23050108
+1 0 0 0 0 5 1 9 23050109
+
-"Time = 1.000000
--1.350000 23040100.0000000000000
--1.050000 23040101.0000000000000
--0.750000 23040102.0000000000000
--0.450000 23040103.0000000000000
--0.150000 23040104.0000000000000
-0.150000 23040105.0000000000000
-0.450000 23040106.0000000000000
-0.750000 23040107.0000000000000
-1.050000 23040108.0000000000000
-1.350000 23040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/tyy.xl b/CarpetAttic/Cart3dTest/test/symmetric-y/tyy.xl
index 8820a4674..566c0922e 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/tyy.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/tyy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy x (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 24000105
+0 0 0 0 0 1 1 5 24010105
+0 0 0 0 0 2 1 5 24020105
+0 0 0 0 0 3 1 5 24030105
+0 0 0 0 0 4 1 5 24040105
+0 0 0 0 0 5 1 5 24050105
+0 0 0 0 0 6 1 5 24060105
+0 0 0 0 0 7 1 5 24070105
+0 0 0 0 0 8 1 5 24080105
+0 0 0 0 0 9 1 5 24090105
-"Time = 0.000000
--1.350000 24000104.0000000000000
--1.050000 24010104.0000000000000
--0.750000 24020104.0000000000000
--0.450000 24030104.0000000000000
--0.150000 24040104.0000000000000
-0.150000 24050104.0000000000000
-0.450000 24060104.0000000000000
-0.750000 24070104.0000000000000
-1.050000 24080104.0000000000000
-1.350000 24090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 24000105
+1 0 0 0 0 1 1 5 24010105
+1 0 0 0 0 2 1 5 24020105
+1 0 0 0 0 3 1 5 24030105
+1 0 0 0 0 4 1 5 24040105
+1 0 0 0 0 5 1 5 24050105
+1 0 0 0 0 6 1 5 24060105
+1 0 0 0 0 7 1 5 24070105
+1 0 0 0 0 8 1 5 24080105
+1 0 0 0 0 9 1 5 24090105
+
-"Time = 1.000000
--1.350000 24000104.0000000000000
--1.050000 24010104.0000000000000
--0.750000 24020104.0000000000000
--0.450000 24030104.0000000000000
--0.150000 24040104.0000000000000
-0.150000 24050104.0000000000000
-0.450000 24060104.0000000000000
-0.750000 24070104.0000000000000
-1.050000 24080104.0000000000000
-1.350000 24090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/tyy.yl b/CarpetAttic/Cart3dTest/test/symmetric-y/tyy.yl
index 433c4ae27..02c71e680 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/tyy.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/tyy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy y (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 24050005
+0 0 0 0 0 5 1 5 24050105
+0 0 0 0 0 5 2 5 24050205
+0 0 0 0 0 5 3 5 24050305
+0 0 0 0 0 5 4 5 24050405
+0 0 0 0 0 5 5 5 24050505
+0 0 0 0 0 5 6 5 24050605
+0 0 0 0 0 5 7 5 24050705
+0 0 0 0 0 5 8 5 24050805
+0 0 0 0 0 5 9 5 24050905
-"Time = 0.000000
--0.150000 24040004.0000000000000
-0.150000 24040104.0000000000000
-0.450000 24040204.0000000000000
-0.750000 24040304.0000000000000
-1.050000 24040404.0000000000000
-1.350000 24040504.0000000000000
-1.650000 24040604.0000000000000
-1.950000 24040704.0000000000000
-2.250000 24040804.0000000000000
-2.550000 24040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 24050105
+1 0 0 0 0 5 1 5 24050105
+1 0 0 0 0 5 2 5 24050205
+1 0 0 0 0 5 3 5 24050305
+1 0 0 0 0 5 4 5 24050405
+1 0 0 0 0 5 5 5 24050505
+1 0 0 0 0 5 6 5 24050605
+1 0 0 0 0 5 7 5 24050705
+1 0 0 0 0 5 8 5 24050805
+1 0 0 0 0 5 9 5 24050905
+
-"Time = 1.000000
--0.150000 24040104.0000000000000
-0.150000 24040104.0000000000000
-0.450000 24040204.0000000000000
-0.750000 24040304.0000000000000
-1.050000 24040404.0000000000000
-1.350000 24040504.0000000000000
-1.650000 24040604.0000000000000
-1.950000 24040704.0000000000000
-2.250000 24040804.0000000000000
-2.550000 24040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/tyy.zl b/CarpetAttic/Cart3dTest/test/symmetric-y/tyy.zl
index 99cafe2f4..4f97c9e44 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/tyy.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/tyy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy z (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 24050100
+0 0 0 0 0 5 1 1 24050101
+0 0 0 0 0 5 1 2 24050102
+0 0 0 0 0 5 1 3 24050103
+0 0 0 0 0 5 1 4 24050104
+0 0 0 0 0 5 1 5 24050105
+0 0 0 0 0 5 1 6 24050106
+0 0 0 0 0 5 1 7 24050107
+0 0 0 0 0 5 1 8 24050108
+0 0 0 0 0 5 1 9 24050109
-"Time = 0.000000
--1.350000 24040100.0000000000000
--1.050000 24040101.0000000000000
--0.750000 24040102.0000000000000
--0.450000 24040103.0000000000000
--0.150000 24040104.0000000000000
-0.150000 24040105.0000000000000
-0.450000 24040106.0000000000000
-0.750000 24040107.0000000000000
-1.050000 24040108.0000000000000
-1.350000 24040109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 24050100
+1 0 0 0 0 5 1 1 24050101
+1 0 0 0 0 5 1 2 24050102
+1 0 0 0 0 5 1 3 24050103
+1 0 0 0 0 5 1 4 24050104
+1 0 0 0 0 5 1 5 24050105
+1 0 0 0 0 5 1 6 24050106
+1 0 0 0 0 5 1 7 24050107
+1 0 0 0 0 5 1 8 24050108
+1 0 0 0 0 5 1 9 24050109
+
-"Time = 1.000000
--1.350000 24040100.0000000000000
--1.050000 24040101.0000000000000
--0.750000 24040102.0000000000000
--0.450000 24040103.0000000000000
--0.150000 24040104.0000000000000
-0.150000 24040105.0000000000000
-0.450000 24040106.0000000000000
-0.750000 24040107.0000000000000
-1.050000 24040108.0000000000000
-1.350000 24040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/tyz.xl b/CarpetAttic/Cart3dTest/test/symmetric-y/tyz.xl
index 24f8d807e..1cac2cd93 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/tyz.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/tyz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz x (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 25000105
+0 0 0 0 0 1 1 5 25010105
+0 0 0 0 0 2 1 5 25020105
+0 0 0 0 0 3 1 5 25030105
+0 0 0 0 0 4 1 5 25040105
+0 0 0 0 0 5 1 5 25050105
+0 0 0 0 0 6 1 5 25060105
+0 0 0 0 0 7 1 5 25070105
+0 0 0 0 0 8 1 5 25080105
+0 0 0 0 0 9 1 5 25090105
-"Time = 0.000000
--1.350000 25000104.0000000000000
--1.050000 25010104.0000000000000
--0.750000 25020104.0000000000000
--0.450000 25030104.0000000000000
--0.150000 25040104.0000000000000
-0.150000 25050104.0000000000000
-0.450000 25060104.0000000000000
-0.750000 25070104.0000000000000
-1.050000 25080104.0000000000000
-1.350000 25090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 25000105
+1 0 0 0 0 1 1 5 25010105
+1 0 0 0 0 2 1 5 25020105
+1 0 0 0 0 3 1 5 25030105
+1 0 0 0 0 4 1 5 25040105
+1 0 0 0 0 5 1 5 25050105
+1 0 0 0 0 6 1 5 25060105
+1 0 0 0 0 7 1 5 25070105
+1 0 0 0 0 8 1 5 25080105
+1 0 0 0 0 9 1 5 25090105
+
-"Time = 1.000000
--1.350000 25000104.0000000000000
--1.050000 25010104.0000000000000
--0.750000 25020104.0000000000000
--0.450000 25030104.0000000000000
--0.150000 25040104.0000000000000
-0.150000 25050104.0000000000000
-0.450000 25060104.0000000000000
-0.750000 25070104.0000000000000
-1.050000 25080104.0000000000000
-1.350000 25090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/tyz.yl b/CarpetAttic/Cart3dTest/test/symmetric-y/tyz.yl
index d5b35ac08..fe7a89209 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/tyz.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/tyz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz y (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 25050005
+0 0 0 0 0 5 1 5 25050105
+0 0 0 0 0 5 2 5 25050205
+0 0 0 0 0 5 3 5 25050305
+0 0 0 0 0 5 4 5 25050405
+0 0 0 0 0 5 5 5 25050505
+0 0 0 0 0 5 6 5 25050605
+0 0 0 0 0 5 7 5 25050705
+0 0 0 0 0 5 8 5 25050805
+0 0 0 0 0 5 9 5 25050905
-"Time = 0.000000
--0.150000 25040004.0000000000000
-0.150000 25040104.0000000000000
-0.450000 25040204.0000000000000
-0.750000 25040304.0000000000000
-1.050000 25040404.0000000000000
-1.350000 25040504.0000000000000
-1.650000 25040604.0000000000000
-1.950000 25040704.0000000000000
-2.250000 25040804.0000000000000
-2.550000 25040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 -25050105
+1 0 0 0 0 5 1 5 25050105
+1 0 0 0 0 5 2 5 25050205
+1 0 0 0 0 5 3 5 25050305
+1 0 0 0 0 5 4 5 25050405
+1 0 0 0 0 5 5 5 25050505
+1 0 0 0 0 5 6 5 25050605
+1 0 0 0 0 5 7 5 25050705
+1 0 0 0 0 5 8 5 25050805
+1 0 0 0 0 5 9 5 25050905
+
-"Time = 1.000000
--0.150000 -25040104.0000000000000
-0.150000 25040104.0000000000000
-0.450000 25040204.0000000000000
-0.750000 25040304.0000000000000
-1.050000 25040404.0000000000000
-1.350000 25040504.0000000000000
-1.650000 25040604.0000000000000
-1.950000 25040704.0000000000000
-2.250000 25040804.0000000000000
-2.550000 25040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/tyz.zl b/CarpetAttic/Cart3dTest/test/symmetric-y/tyz.zl
index 22e8297e9..e7c1157f7 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/tyz.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/tyz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz z (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 25050100
+0 0 0 0 0 5 1 1 25050101
+0 0 0 0 0 5 1 2 25050102
+0 0 0 0 0 5 1 3 25050103
+0 0 0 0 0 5 1 4 25050104
+0 0 0 0 0 5 1 5 25050105
+0 0 0 0 0 5 1 6 25050106
+0 0 0 0 0 5 1 7 25050107
+0 0 0 0 0 5 1 8 25050108
+0 0 0 0 0 5 1 9 25050109
-"Time = 0.000000
--1.350000 25040100.0000000000000
--1.050000 25040101.0000000000000
--0.750000 25040102.0000000000000
--0.450000 25040103.0000000000000
--0.150000 25040104.0000000000000
-0.150000 25040105.0000000000000
-0.450000 25040106.0000000000000
-0.750000 25040107.0000000000000
-1.050000 25040108.0000000000000
-1.350000 25040109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 25050100
+1 0 0 0 0 5 1 1 25050101
+1 0 0 0 0 5 1 2 25050102
+1 0 0 0 0 5 1 3 25050103
+1 0 0 0 0 5 1 4 25050104
+1 0 0 0 0 5 1 5 25050105
+1 0 0 0 0 5 1 6 25050106
+1 0 0 0 0 5 1 7 25050107
+1 0 0 0 0 5 1 8 25050108
+1 0 0 0 0 5 1 9 25050109
+
-"Time = 1.000000
--1.350000 25040100.0000000000000
--1.050000 25040101.0000000000000
--0.750000 25040102.0000000000000
--0.450000 25040103.0000000000000
--0.150000 25040104.0000000000000
-0.150000 25040105.0000000000000
-0.450000 25040106.0000000000000
-0.750000 25040107.0000000000000
-1.050000 25040108.0000000000000
-1.350000 25040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/tzz.xl b/CarpetAttic/Cart3dTest/test/symmetric-y/tzz.xl
index fa59a3809..1dfc09b33 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/tzz.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/tzz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz x (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 26000105
+0 0 0 0 0 1 1 5 26010105
+0 0 0 0 0 2 1 5 26020105
+0 0 0 0 0 3 1 5 26030105
+0 0 0 0 0 4 1 5 26040105
+0 0 0 0 0 5 1 5 26050105
+0 0 0 0 0 6 1 5 26060105
+0 0 0 0 0 7 1 5 26070105
+0 0 0 0 0 8 1 5 26080105
+0 0 0 0 0 9 1 5 26090105
-"Time = 0.000000
--1.350000 26000104.0000000000000
--1.050000 26010104.0000000000000
--0.750000 26020104.0000000000000
--0.450000 26030104.0000000000000
--0.150000 26040104.0000000000000
-0.150000 26050104.0000000000000
-0.450000 26060104.0000000000000
-0.750000 26070104.0000000000000
-1.050000 26080104.0000000000000
-1.350000 26090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 26000105
+1 0 0 0 0 1 1 5 26010105
+1 0 0 0 0 2 1 5 26020105
+1 0 0 0 0 3 1 5 26030105
+1 0 0 0 0 4 1 5 26040105
+1 0 0 0 0 5 1 5 26050105
+1 0 0 0 0 6 1 5 26060105
+1 0 0 0 0 7 1 5 26070105
+1 0 0 0 0 8 1 5 26080105
+1 0 0 0 0 9 1 5 26090105
+
-"Time = 1.000000
--1.350000 26000104.0000000000000
--1.050000 26010104.0000000000000
--0.750000 26020104.0000000000000
--0.450000 26030104.0000000000000
--0.150000 26040104.0000000000000
-0.150000 26050104.0000000000000
-0.450000 26060104.0000000000000
-0.750000 26070104.0000000000000
-1.050000 26080104.0000000000000
-1.350000 26090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/tzz.yl b/CarpetAttic/Cart3dTest/test/symmetric-y/tzz.yl
index 2c40fccca..40eb99b2e 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/tzz.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/tzz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz y (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 26050005
+0 0 0 0 0 5 1 5 26050105
+0 0 0 0 0 5 2 5 26050205
+0 0 0 0 0 5 3 5 26050305
+0 0 0 0 0 5 4 5 26050405
+0 0 0 0 0 5 5 5 26050505
+0 0 0 0 0 5 6 5 26050605
+0 0 0 0 0 5 7 5 26050705
+0 0 0 0 0 5 8 5 26050805
+0 0 0 0 0 5 9 5 26050905
-"Time = 0.000000
--0.150000 26040004.0000000000000
-0.150000 26040104.0000000000000
-0.450000 26040204.0000000000000
-0.750000 26040304.0000000000000
-1.050000 26040404.0000000000000
-1.350000 26040504.0000000000000
-1.650000 26040604.0000000000000
-1.950000 26040704.0000000000000
-2.250000 26040804.0000000000000
-2.550000 26040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 26050105
+1 0 0 0 0 5 1 5 26050105
+1 0 0 0 0 5 2 5 26050205
+1 0 0 0 0 5 3 5 26050305
+1 0 0 0 0 5 4 5 26050405
+1 0 0 0 0 5 5 5 26050505
+1 0 0 0 0 5 6 5 26050605
+1 0 0 0 0 5 7 5 26050705
+1 0 0 0 0 5 8 5 26050805
+1 0 0 0 0 5 9 5 26050905
+
-"Time = 1.000000
--0.150000 26040104.0000000000000
-0.150000 26040104.0000000000000
-0.450000 26040204.0000000000000
-0.750000 26040304.0000000000000
-1.050000 26040404.0000000000000
-1.350000 26040504.0000000000000
-1.650000 26040604.0000000000000
-1.950000 26040704.0000000000000
-2.250000 26040804.0000000000000
-2.550000 26040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/tzz.zl b/CarpetAttic/Cart3dTest/test/symmetric-y/tzz.zl
index d095de064..1bbe1fa92 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/tzz.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/tzz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz z (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 26050100
+0 0 0 0 0 5 1 1 26050101
+0 0 0 0 0 5 1 2 26050102
+0 0 0 0 0 5 1 3 26050103
+0 0 0 0 0 5 1 4 26050104
+0 0 0 0 0 5 1 5 26050105
+0 0 0 0 0 5 1 6 26050106
+0 0 0 0 0 5 1 7 26050107
+0 0 0 0 0 5 1 8 26050108
+0 0 0 0 0 5 1 9 26050109
-"Time = 0.000000
--1.350000 26040100.0000000000000
--1.050000 26040101.0000000000000
--0.750000 26040102.0000000000000
--0.450000 26040103.0000000000000
--0.150000 26040104.0000000000000
-0.150000 26040105.0000000000000
-0.450000 26040106.0000000000000
-0.750000 26040107.0000000000000
-1.050000 26040108.0000000000000
-1.350000 26040109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 26050100
+1 0 0 0 0 5 1 1 26050101
+1 0 0 0 0 5 1 2 26050102
+1 0 0 0 0 5 1 3 26050103
+1 0 0 0 0 5 1 4 26050104
+1 0 0 0 0 5 1 5 26050105
+1 0 0 0 0 5 1 6 26050106
+1 0 0 0 0 5 1 7 26050107
+1 0 0 0 0 5 1 8 26050108
+1 0 0 0 0 5 1 9 26050109
+
-"Time = 1.000000
--1.350000 26040100.0000000000000
--1.050000 26040101.0000000000000
--0.750000 26040102.0000000000000
--0.450000 26040103.0000000000000
--0.150000 26040104.0000000000000
-0.150000 26040105.0000000000000
-0.450000 26040106.0000000000000
-0.750000 26040107.0000000000000
-1.050000 26040108.0000000000000
-1.350000 26040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/vx.xl b/CarpetAttic/Cart3dTest/test/symmetric-y/vx.xl
index 76a262a18..2fae0a603 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/vx.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/vx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx x (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 11000105
+0 0 0 0 0 1 1 5 11010105
+0 0 0 0 0 2 1 5 11020105
+0 0 0 0 0 3 1 5 11030105
+0 0 0 0 0 4 1 5 11040105
+0 0 0 0 0 5 1 5 11050105
+0 0 0 0 0 6 1 5 11060105
+0 0 0 0 0 7 1 5 11070105
+0 0 0 0 0 8 1 5 11080105
+0 0 0 0 0 9 1 5 11090105
-"Time = 0.000000
--1.350000 11000104.0000000000000
--1.050000 11010104.0000000000000
--0.750000 11020104.0000000000000
--0.450000 11030104.0000000000000
--0.150000 11040104.0000000000000
-0.150000 11050104.0000000000000
-0.450000 11060104.0000000000000
-0.750000 11070104.0000000000000
-1.050000 11080104.0000000000000
-1.350000 11090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 11000105
+1 0 0 0 0 1 1 5 11010105
+1 0 0 0 0 2 1 5 11020105
+1 0 0 0 0 3 1 5 11030105
+1 0 0 0 0 4 1 5 11040105
+1 0 0 0 0 5 1 5 11050105
+1 0 0 0 0 6 1 5 11060105
+1 0 0 0 0 7 1 5 11070105
+1 0 0 0 0 8 1 5 11080105
+1 0 0 0 0 9 1 5 11090105
+
-"Time = 1.000000
--1.350000 11000104.0000000000000
--1.050000 11010104.0000000000000
--0.750000 11020104.0000000000000
--0.450000 11030104.0000000000000
--0.150000 11040104.0000000000000
-0.150000 11050104.0000000000000
-0.450000 11060104.0000000000000
-0.750000 11070104.0000000000000
-1.050000 11080104.0000000000000
-1.350000 11090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/vx.yl b/CarpetAttic/Cart3dTest/test/symmetric-y/vx.yl
index d977137d1..3ecaca9bb 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/vx.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/vx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx y (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 11050005
+0 0 0 0 0 5 1 5 11050105
+0 0 0 0 0 5 2 5 11050205
+0 0 0 0 0 5 3 5 11050305
+0 0 0 0 0 5 4 5 11050405
+0 0 0 0 0 5 5 5 11050505
+0 0 0 0 0 5 6 5 11050605
+0 0 0 0 0 5 7 5 11050705
+0 0 0 0 0 5 8 5 11050805
+0 0 0 0 0 5 9 5 11050905
-"Time = 0.000000
--0.150000 11040004.0000000000000
-0.150000 11040104.0000000000000
-0.450000 11040204.0000000000000
-0.750000 11040304.0000000000000
-1.050000 11040404.0000000000000
-1.350000 11040504.0000000000000
-1.650000 11040604.0000000000000
-1.950000 11040704.0000000000000
-2.250000 11040804.0000000000000
-2.550000 11040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 11050105
+1 0 0 0 0 5 1 5 11050105
+1 0 0 0 0 5 2 5 11050205
+1 0 0 0 0 5 3 5 11050305
+1 0 0 0 0 5 4 5 11050405
+1 0 0 0 0 5 5 5 11050505
+1 0 0 0 0 5 6 5 11050605
+1 0 0 0 0 5 7 5 11050705
+1 0 0 0 0 5 8 5 11050805
+1 0 0 0 0 5 9 5 11050905
+
-"Time = 1.000000
--0.150000 11040104.0000000000000
-0.150000 11040104.0000000000000
-0.450000 11040204.0000000000000
-0.750000 11040304.0000000000000
-1.050000 11040404.0000000000000
-1.350000 11040504.0000000000000
-1.650000 11040604.0000000000000
-1.950000 11040704.0000000000000
-2.250000 11040804.0000000000000
-2.550000 11040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/vx.zl b/CarpetAttic/Cart3dTest/test/symmetric-y/vx.zl
index 3df8dc92c..f88df97af 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/vx.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/vx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx z (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 11050100
+0 0 0 0 0 5 1 1 11050101
+0 0 0 0 0 5 1 2 11050102
+0 0 0 0 0 5 1 3 11050103
+0 0 0 0 0 5 1 4 11050104
+0 0 0 0 0 5 1 5 11050105
+0 0 0 0 0 5 1 6 11050106
+0 0 0 0 0 5 1 7 11050107
+0 0 0 0 0 5 1 8 11050108
+0 0 0 0 0 5 1 9 11050109
-"Time = 0.000000
--1.350000 11040100.0000000000000
--1.050000 11040101.0000000000000
--0.750000 11040102.0000000000000
--0.450000 11040103.0000000000000
--0.150000 11040104.0000000000000
-0.150000 11040105.0000000000000
-0.450000 11040106.0000000000000
-0.750000 11040107.0000000000000
-1.050000 11040108.0000000000000
-1.350000 11040109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 11050100
+1 0 0 0 0 5 1 1 11050101
+1 0 0 0 0 5 1 2 11050102
+1 0 0 0 0 5 1 3 11050103
+1 0 0 0 0 5 1 4 11050104
+1 0 0 0 0 5 1 5 11050105
+1 0 0 0 0 5 1 6 11050106
+1 0 0 0 0 5 1 7 11050107
+1 0 0 0 0 5 1 8 11050108
+1 0 0 0 0 5 1 9 11050109
+
-"Time = 1.000000
--1.350000 11040100.0000000000000
--1.050000 11040101.0000000000000
--0.750000 11040102.0000000000000
--0.450000 11040103.0000000000000
--0.150000 11040104.0000000000000
-0.150000 11040105.0000000000000
-0.450000 11040106.0000000000000
-0.750000 11040107.0000000000000
-1.050000 11040108.0000000000000
-1.350000 11040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/vy.xl b/CarpetAttic/Cart3dTest/test/symmetric-y/vy.xl
index ba97b93b3..abba49be6 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/vy.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/vy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy x (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 12000105
+0 0 0 0 0 1 1 5 12010105
+0 0 0 0 0 2 1 5 12020105
+0 0 0 0 0 3 1 5 12030105
+0 0 0 0 0 4 1 5 12040105
+0 0 0 0 0 5 1 5 12050105
+0 0 0 0 0 6 1 5 12060105
+0 0 0 0 0 7 1 5 12070105
+0 0 0 0 0 8 1 5 12080105
+0 0 0 0 0 9 1 5 12090105
-"Time = 0.000000
--1.350000 12000104.0000000000000
--1.050000 12010104.0000000000000
--0.750000 12020104.0000000000000
--0.450000 12030104.0000000000000
--0.150000 12040104.0000000000000
-0.150000 12050104.0000000000000
-0.450000 12060104.0000000000000
-0.750000 12070104.0000000000000
-1.050000 12080104.0000000000000
-1.350000 12090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 12000105
+1 0 0 0 0 1 1 5 12010105
+1 0 0 0 0 2 1 5 12020105
+1 0 0 0 0 3 1 5 12030105
+1 0 0 0 0 4 1 5 12040105
+1 0 0 0 0 5 1 5 12050105
+1 0 0 0 0 6 1 5 12060105
+1 0 0 0 0 7 1 5 12070105
+1 0 0 0 0 8 1 5 12080105
+1 0 0 0 0 9 1 5 12090105
+
-"Time = 1.000000
--1.350000 12000104.0000000000000
--1.050000 12010104.0000000000000
--0.750000 12020104.0000000000000
--0.450000 12030104.0000000000000
--0.150000 12040104.0000000000000
-0.150000 12050104.0000000000000
-0.450000 12060104.0000000000000
-0.750000 12070104.0000000000000
-1.050000 12080104.0000000000000
-1.350000 12090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/vy.yl b/CarpetAttic/Cart3dTest/test/symmetric-y/vy.yl
index 2b79d7402..1ebaab1d2 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/vy.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/vy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy y (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 12050005
+0 0 0 0 0 5 1 5 12050105
+0 0 0 0 0 5 2 5 12050205
+0 0 0 0 0 5 3 5 12050305
+0 0 0 0 0 5 4 5 12050405
+0 0 0 0 0 5 5 5 12050505
+0 0 0 0 0 5 6 5 12050605
+0 0 0 0 0 5 7 5 12050705
+0 0 0 0 0 5 8 5 12050805
+0 0 0 0 0 5 9 5 12050905
-"Time = 0.000000
--0.150000 12040004.0000000000000
-0.150000 12040104.0000000000000
-0.450000 12040204.0000000000000
-0.750000 12040304.0000000000000
-1.050000 12040404.0000000000000
-1.350000 12040504.0000000000000
-1.650000 12040604.0000000000000
-1.950000 12040704.0000000000000
-2.250000 12040804.0000000000000
-2.550000 12040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 -12050105
+1 0 0 0 0 5 1 5 12050105
+1 0 0 0 0 5 2 5 12050205
+1 0 0 0 0 5 3 5 12050305
+1 0 0 0 0 5 4 5 12050405
+1 0 0 0 0 5 5 5 12050505
+1 0 0 0 0 5 6 5 12050605
+1 0 0 0 0 5 7 5 12050705
+1 0 0 0 0 5 8 5 12050805
+1 0 0 0 0 5 9 5 12050905
+
-"Time = 1.000000
--0.150000 -12040104.0000000000000
-0.150000 12040104.0000000000000
-0.450000 12040204.0000000000000
-0.750000 12040304.0000000000000
-1.050000 12040404.0000000000000
-1.350000 12040504.0000000000000
-1.650000 12040604.0000000000000
-1.950000 12040704.0000000000000
-2.250000 12040804.0000000000000
-2.550000 12040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/vy.zl b/CarpetAttic/Cart3dTest/test/symmetric-y/vy.zl
index eea7e152d..be427ea3b 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/vy.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/vy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy z (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 12050100
+0 0 0 0 0 5 1 1 12050101
+0 0 0 0 0 5 1 2 12050102
+0 0 0 0 0 5 1 3 12050103
+0 0 0 0 0 5 1 4 12050104
+0 0 0 0 0 5 1 5 12050105
+0 0 0 0 0 5 1 6 12050106
+0 0 0 0 0 5 1 7 12050107
+0 0 0 0 0 5 1 8 12050108
+0 0 0 0 0 5 1 9 12050109
-"Time = 0.000000
--1.350000 12040100.0000000000000
--1.050000 12040101.0000000000000
--0.750000 12040102.0000000000000
--0.450000 12040103.0000000000000
--0.150000 12040104.0000000000000
-0.150000 12040105.0000000000000
-0.450000 12040106.0000000000000
-0.750000 12040107.0000000000000
-1.050000 12040108.0000000000000
-1.350000 12040109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 12050100
+1 0 0 0 0 5 1 1 12050101
+1 0 0 0 0 5 1 2 12050102
+1 0 0 0 0 5 1 3 12050103
+1 0 0 0 0 5 1 4 12050104
+1 0 0 0 0 5 1 5 12050105
+1 0 0 0 0 5 1 6 12050106
+1 0 0 0 0 5 1 7 12050107
+1 0 0 0 0 5 1 8 12050108
+1 0 0 0 0 5 1 9 12050109
+
-"Time = 1.000000
--1.350000 12040100.0000000000000
--1.050000 12040101.0000000000000
--0.750000 12040102.0000000000000
--0.450000 12040103.0000000000000
--0.150000 12040104.0000000000000
-0.150000 12040105.0000000000000
-0.450000 12040106.0000000000000
-0.750000 12040107.0000000000000
-1.050000 12040108.0000000000000
-1.350000 12040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/vz.xl b/CarpetAttic/Cart3dTest/test/symmetric-y/vz.xl
index 46d3aecef..a01f81b61 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/vz.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/vz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz x (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 1 5 13000105
+0 0 0 0 0 1 1 5 13010105
+0 0 0 0 0 2 1 5 13020105
+0 0 0 0 0 3 1 5 13030105
+0 0 0 0 0 4 1 5 13040105
+0 0 0 0 0 5 1 5 13050105
+0 0 0 0 0 6 1 5 13060105
+0 0 0 0 0 7 1 5 13070105
+0 0 0 0 0 8 1 5 13080105
+0 0 0 0 0 9 1 5 13090105
-"Time = 0.000000
--1.350000 13000104.0000000000000
--1.050000 13010104.0000000000000
--0.750000 13020104.0000000000000
--0.450000 13030104.0000000000000
--0.150000 13040104.0000000000000
-0.150000 13050104.0000000000000
-0.450000 13060104.0000000000000
-0.750000 13070104.0000000000000
-1.050000 13080104.0000000000000
-1.350000 13090104.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 1 5 13000105
+1 0 0 0 0 1 1 5 13010105
+1 0 0 0 0 2 1 5 13020105
+1 0 0 0 0 3 1 5 13030105
+1 0 0 0 0 4 1 5 13040105
+1 0 0 0 0 5 1 5 13050105
+1 0 0 0 0 6 1 5 13060105
+1 0 0 0 0 7 1 5 13070105
+1 0 0 0 0 8 1 5 13080105
+1 0 0 0 0 9 1 5 13090105
+
-"Time = 1.000000
--1.350000 13000104.0000000000000
--1.050000 13010104.0000000000000
--0.750000 13020104.0000000000000
--0.450000 13030104.0000000000000
--0.150000 13040104.0000000000000
-0.150000 13050104.0000000000000
-0.450000 13060104.0000000000000
-0.750000 13070104.0000000000000
-1.050000 13080104.0000000000000
-1.350000 13090104.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/vz.yl b/CarpetAttic/Cart3dTest/test/symmetric-y/vz.yl
index 306d1de6b..d30c882cf 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/vz.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/vz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz y (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 5 13050005
+0 0 0 0 0 5 1 5 13050105
+0 0 0 0 0 5 2 5 13050205
+0 0 0 0 0 5 3 5 13050305
+0 0 0 0 0 5 4 5 13050405
+0 0 0 0 0 5 5 5 13050505
+0 0 0 0 0 5 6 5 13050605
+0 0 0 0 0 5 7 5 13050705
+0 0 0 0 0 5 8 5 13050805
+0 0 0 0 0 5 9 5 13050905
-"Time = 0.000000
--0.150000 13040004.0000000000000
-0.150000 13040104.0000000000000
-0.450000 13040204.0000000000000
-0.750000 13040304.0000000000000
-1.050000 13040404.0000000000000
-1.350000 13040504.0000000000000
-1.650000 13040604.0000000000000
-1.950000 13040704.0000000000000
-2.250000 13040804.0000000000000
-2.550000 13040904.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 5 13050105
+1 0 0 0 0 5 1 5 13050105
+1 0 0 0 0 5 2 5 13050205
+1 0 0 0 0 5 3 5 13050305
+1 0 0 0 0 5 4 5 13050405
+1 0 0 0 0 5 5 5 13050505
+1 0 0 0 0 5 6 5 13050605
+1 0 0 0 0 5 7 5 13050705
+1 0 0 0 0 5 8 5 13050805
+1 0 0 0 0 5 9 5 13050905
+
-"Time = 1.000000
--0.150000 13040104.0000000000000
-0.150000 13040104.0000000000000
-0.450000 13040204.0000000000000
-0.750000 13040304.0000000000000
-1.050000 13040404.0000000000000
-1.350000 13040504.0000000000000
-1.650000 13040604.0000000000000
-1.950000 13040704.0000000000000
-2.250000 13040804.0000000000000
-2.550000 13040904.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-y/vz.zl b/CarpetAttic/Cart3dTest/test/symmetric-y/vz.zl
index 8860f5cc0..0245c4165 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-y/vz.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-y/vz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz z (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 1 0 13050100
+0 0 0 0 0 5 1 1 13050101
+0 0 0 0 0 5 1 2 13050102
+0 0 0 0 0 5 1 3 13050103
+0 0 0 0 0 5 1 4 13050104
+0 0 0 0 0 5 1 5 13050105
+0 0 0 0 0 5 1 6 13050106
+0 0 0 0 0 5 1 7 13050107
+0 0 0 0 0 5 1 8 13050108
+0 0 0 0 0 5 1 9 13050109
-"Time = 0.000000
--1.350000 13040100.0000000000000
--1.050000 13040101.0000000000000
--0.750000 13040102.0000000000000
--0.450000 13040103.0000000000000
--0.150000 13040104.0000000000000
-0.150000 13040105.0000000000000
-0.450000 13040106.0000000000000
-0.750000 13040107.0000000000000
-1.050000 13040108.0000000000000
-1.350000 13040109.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 1 0 13050100
+1 0 0 0 0 5 1 1 13050101
+1 0 0 0 0 5 1 2 13050102
+1 0 0 0 0 5 1 3 13050103
+1 0 0 0 0 5 1 4 13050104
+1 0 0 0 0 5 1 5 13050105
+1 0 0 0 0 5 1 6 13050106
+1 0 0 0 0 5 1 7 13050107
+1 0 0 0 0 5 1 8 13050108
+1 0 0 0 0 5 1 9 13050109
+
-"Time = 1.000000
--1.350000 13040100.0000000000000
--1.050000 13040101.0000000000000
--0.750000 13040102.0000000000000
--0.450000 13040103.0000000000000
--0.150000 13040104.0000000000000
-0.150000 13040105.0000000000000
-0.450000 13040106.0000000000000
-0.750000 13040107.0000000000000
-1.050000 13040108.0000000000000
-1.350000 13040109.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/ax.xl b/CarpetAttic/Cart3dTest/test/symmetric-z/ax.xl
index 36ef0a0c7..7e8e323fa 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/ax.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/ax.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax x (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 31000502
+0 0 0 0 0 1 5 2 31010502
+0 0 0 0 0 2 5 2 31020502
+0 0 0 0 0 3 5 2 31030502
+0 0 0 0 0 4 5 2 31040502
+0 0 0 0 0 5 5 2 31050502
+0 0 0 0 0 6 5 2 31060502
+0 0 0 0 0 7 5 2 31070502
+0 0 0 0 0 8 5 2 31080502
+0 0 0 0 0 9 5 2 31090502
-"Time = 0.000000
--1.350000 31000401.0000000000000
--1.050000 31010401.0000000000000
--0.750000 31020401.0000000000000
--0.450000 31030401.0000000000000
--0.150000 31040401.0000000000000
-0.150000 31050401.0000000000000
-0.450000 31060401.0000000000000
-0.750000 31070401.0000000000000
-1.050000 31080401.0000000000000
-1.350000 31090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 31000502
+1 0 0 0 0 1 5 2 31010502
+1 0 0 0 0 2 5 2 31020502
+1 0 0 0 0 3 5 2 31030502
+1 0 0 0 0 4 5 2 31040502
+1 0 0 0 0 5 5 2 31050502
+1 0 0 0 0 6 5 2 31060502
+1 0 0 0 0 7 5 2 31070502
+1 0 0 0 0 8 5 2 31080502
+1 0 0 0 0 9 5 2 31090502
+
-"Time = 1.000000
--1.350000 -31000402.0000000000000
--1.050000 -31010402.0000000000000
--0.750000 -31020402.0000000000000
--0.450000 -31030402.0000000000000
--0.150000 -31040402.0000000000000
-0.150000 -31050402.0000000000000
-0.450000 -31060402.0000000000000
-0.750000 -31070402.0000000000000
-1.050000 -31080402.0000000000000
-1.350000 -31090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/ax.yl b/CarpetAttic/Cart3dTest/test/symmetric-z/ax.yl
index b00e8c4fe..afff82d2d 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/ax.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/ax.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax y (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 31050002
+0 0 0 0 0 5 1 2 31050102
+0 0 0 0 0 5 2 2 31050202
+0 0 0 0 0 5 3 2 31050302
+0 0 0 0 0 5 4 2 31050402
+0 0 0 0 0 5 5 2 31050502
+0 0 0 0 0 5 6 2 31050602
+0 0 0 0 0 5 7 2 31050702
+0 0 0 0 0 5 8 2 31050802
+0 0 0 0 0 5 9 2 31050902
-"Time = 0.000000
--1.350000 31040001.0000000000000
--1.050000 31040101.0000000000000
--0.750000 31040201.0000000000000
--0.450000 31040301.0000000000000
--0.150000 31040401.0000000000000
-0.150000 31040501.0000000000000
-0.450000 31040601.0000000000000
-0.750000 31040701.0000000000000
-1.050000 31040801.0000000000000
-1.350000 31040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 31050002
+1 0 0 0 0 5 1 2 31050102
+1 0 0 0 0 5 2 2 31050202
+1 0 0 0 0 5 3 2 31050302
+1 0 0 0 0 5 4 2 31050402
+1 0 0 0 0 5 5 2 31050502
+1 0 0 0 0 5 6 2 31050602
+1 0 0 0 0 5 7 2 31050702
+1 0 0 0 0 5 8 2 31050802
+1 0 0 0 0 5 9 2 31050902
+
-"Time = 1.000000
--1.350000 -31040002.0000000000000
--1.050000 -31040102.0000000000000
--0.750000 -31040202.0000000000000
--0.450000 -31040302.0000000000000
--0.150000 -31040402.0000000000000
-0.150000 -31040502.0000000000000
-0.450000 -31040602.0000000000000
-0.750000 -31040702.0000000000000
-1.050000 -31040802.0000000000000
-1.350000 -31040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/ax.zl b/CarpetAttic/Cart3dTest/test/symmetric-z/ax.zl
index 1b329fa76..a07bdd678 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/ax.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/ax.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::ax z (ax)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 31050500
+0 0 0 0 0 5 5 1 31050501
+0 0 0 0 0 5 5 2 31050502
+0 0 0 0 0 5 5 3 31050503
+0 0 0 0 0 5 5 4 31050504
+0 0 0 0 0 5 5 5 31050505
+0 0 0 0 0 5 5 6 31050506
+0 0 0 0 0 5 5 7 31050507
+0 0 0 0 0 5 5 8 31050508
+0 0 0 0 0 5 5 9 31050509
-"Time = 0.000000
--0.450000 31040400.0000000000000
--0.150000 31040401.0000000000000
-0.150000 31040402.0000000000000
-0.450000 31040403.0000000000000
-0.750000 31040404.0000000000000
-1.050000 31040405.0000000000000
-1.350000 31040406.0000000000000
-1.650000 31040407.0000000000000
-1.950000 31040408.0000000000000
-2.250000 31040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 -31050503
+1 0 0 0 0 5 5 1 -31050502
+1 0 0 0 0 5 5 2 31050502
+1 0 0 0 0 5 5 3 31050503
+1 0 0 0 0 5 5 4 31050504
+1 0 0 0 0 5 5 5 31050505
+1 0 0 0 0 5 5 6 31050506
+1 0 0 0 0 5 5 7 31050507
+1 0 0 0 0 5 5 8 31050508
+1 0 0 0 0 5 5 9 31050509
+
-"Time = 1.000000
--0.450000 -31040403.0000000000000
--0.150000 -31040402.0000000000000
-0.150000 31040402.0000000000000
-0.450000 31040403.0000000000000
-0.750000 31040404.0000000000000
-1.050000 31040405.0000000000000
-1.350000 31040406.0000000000000
-1.650000 31040407.0000000000000
-1.950000 31040408.0000000000000
-2.250000 31040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/ay.xl b/CarpetAttic/Cart3dTest/test/symmetric-z/ay.xl
index 2e3b0bce0..d5d30f098 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/ay.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/ay.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay x (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 32000502
+0 0 0 0 0 1 5 2 32010502
+0 0 0 0 0 2 5 2 32020502
+0 0 0 0 0 3 5 2 32030502
+0 0 0 0 0 4 5 2 32040502
+0 0 0 0 0 5 5 2 32050502
+0 0 0 0 0 6 5 2 32060502
+0 0 0 0 0 7 5 2 32070502
+0 0 0 0 0 8 5 2 32080502
+0 0 0 0 0 9 5 2 32090502
-"Time = 0.000000
--1.350000 32000401.0000000000000
--1.050000 32010401.0000000000000
--0.750000 32020401.0000000000000
--0.450000 32030401.0000000000000
--0.150000 32040401.0000000000000
-0.150000 32050401.0000000000000
-0.450000 32060401.0000000000000
-0.750000 32070401.0000000000000
-1.050000 32080401.0000000000000
-1.350000 32090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 32000502
+1 0 0 0 0 1 5 2 32010502
+1 0 0 0 0 2 5 2 32020502
+1 0 0 0 0 3 5 2 32030502
+1 0 0 0 0 4 5 2 32040502
+1 0 0 0 0 5 5 2 32050502
+1 0 0 0 0 6 5 2 32060502
+1 0 0 0 0 7 5 2 32070502
+1 0 0 0 0 8 5 2 32080502
+1 0 0 0 0 9 5 2 32090502
+
-"Time = 1.000000
--1.350000 -32000402.0000000000000
--1.050000 -32010402.0000000000000
--0.750000 -32020402.0000000000000
--0.450000 -32030402.0000000000000
--0.150000 -32040402.0000000000000
-0.150000 -32050402.0000000000000
-0.450000 -32060402.0000000000000
-0.750000 -32070402.0000000000000
-1.050000 -32080402.0000000000000
-1.350000 -32090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/ay.yl b/CarpetAttic/Cart3dTest/test/symmetric-z/ay.yl
index 6a0aea322..b615a8d33 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/ay.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/ay.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay y (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 32050002
+0 0 0 0 0 5 1 2 32050102
+0 0 0 0 0 5 2 2 32050202
+0 0 0 0 0 5 3 2 32050302
+0 0 0 0 0 5 4 2 32050402
+0 0 0 0 0 5 5 2 32050502
+0 0 0 0 0 5 6 2 32050602
+0 0 0 0 0 5 7 2 32050702
+0 0 0 0 0 5 8 2 32050802
+0 0 0 0 0 5 9 2 32050902
-"Time = 0.000000
--1.350000 32040001.0000000000000
--1.050000 32040101.0000000000000
--0.750000 32040201.0000000000000
--0.450000 32040301.0000000000000
--0.150000 32040401.0000000000000
-0.150000 32040501.0000000000000
-0.450000 32040601.0000000000000
-0.750000 32040701.0000000000000
-1.050000 32040801.0000000000000
-1.350000 32040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 32050002
+1 0 0 0 0 5 1 2 32050102
+1 0 0 0 0 5 2 2 32050202
+1 0 0 0 0 5 3 2 32050302
+1 0 0 0 0 5 4 2 32050402
+1 0 0 0 0 5 5 2 32050502
+1 0 0 0 0 5 6 2 32050602
+1 0 0 0 0 5 7 2 32050702
+1 0 0 0 0 5 8 2 32050802
+1 0 0 0 0 5 9 2 32050902
+
-"Time = 1.000000
--1.350000 -32040002.0000000000000
--1.050000 -32040102.0000000000000
--0.750000 -32040202.0000000000000
--0.450000 -32040302.0000000000000
--0.150000 -32040402.0000000000000
-0.150000 -32040502.0000000000000
-0.450000 -32040602.0000000000000
-0.750000 -32040702.0000000000000
-1.050000 -32040802.0000000000000
-1.350000 -32040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/ay.zl b/CarpetAttic/Cart3dTest/test/symmetric-z/ay.zl
index 75d684da1..806872ae0 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/ay.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/ay.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::ay z (ay)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 32050500
+0 0 0 0 0 5 5 1 32050501
+0 0 0 0 0 5 5 2 32050502
+0 0 0 0 0 5 5 3 32050503
+0 0 0 0 0 5 5 4 32050504
+0 0 0 0 0 5 5 5 32050505
+0 0 0 0 0 5 5 6 32050506
+0 0 0 0 0 5 5 7 32050507
+0 0 0 0 0 5 5 8 32050508
+0 0 0 0 0 5 5 9 32050509
-"Time = 0.000000
--0.450000 32040400.0000000000000
--0.150000 32040401.0000000000000
-0.150000 32040402.0000000000000
-0.450000 32040403.0000000000000
-0.750000 32040404.0000000000000
-1.050000 32040405.0000000000000
-1.350000 32040406.0000000000000
-1.650000 32040407.0000000000000
-1.950000 32040408.0000000000000
-2.250000 32040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 -32050503
+1 0 0 0 0 5 5 1 -32050502
+1 0 0 0 0 5 5 2 32050502
+1 0 0 0 0 5 5 3 32050503
+1 0 0 0 0 5 5 4 32050504
+1 0 0 0 0 5 5 5 32050505
+1 0 0 0 0 5 5 6 32050506
+1 0 0 0 0 5 5 7 32050507
+1 0 0 0 0 5 5 8 32050508
+1 0 0 0 0 5 5 9 32050509
+
-"Time = 1.000000
--0.450000 -32040403.0000000000000
--0.150000 -32040402.0000000000000
-0.150000 32040402.0000000000000
-0.450000 32040403.0000000000000
-0.750000 32040404.0000000000000
-1.050000 32040405.0000000000000
-1.350000 32040406.0000000000000
-1.650000 32040407.0000000000000
-1.950000 32040408.0000000000000
-2.250000 32040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/az.xl b/CarpetAttic/Cart3dTest/test/symmetric-z/az.xl
index e56714660..2801cce26 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/az.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/az.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::az x (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 33000502
+0 0 0 0 0 1 5 2 33010502
+0 0 0 0 0 2 5 2 33020502
+0 0 0 0 0 3 5 2 33030502
+0 0 0 0 0 4 5 2 33040502
+0 0 0 0 0 5 5 2 33050502
+0 0 0 0 0 6 5 2 33060502
+0 0 0 0 0 7 5 2 33070502
+0 0 0 0 0 8 5 2 33080502
+0 0 0 0 0 9 5 2 33090502
-"Time = 0.000000
--1.350000 33000401.0000000000000
--1.050000 33010401.0000000000000
--0.750000 33020401.0000000000000
--0.450000 33030401.0000000000000
--0.150000 33040401.0000000000000
-0.150000 33050401.0000000000000
-0.450000 33060401.0000000000000
-0.750000 33070401.0000000000000
-1.050000 33080401.0000000000000
-1.350000 33090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 33000502
+1 0 0 0 0 1 5 2 33010502
+1 0 0 0 0 2 5 2 33020502
+1 0 0 0 0 3 5 2 33030502
+1 0 0 0 0 4 5 2 33040502
+1 0 0 0 0 5 5 2 33050502
+1 0 0 0 0 6 5 2 33060502
+1 0 0 0 0 7 5 2 33070502
+1 0 0 0 0 8 5 2 33080502
+1 0 0 0 0 9 5 2 33090502
+
-"Time = 1.000000
--1.350000 33000402.0000000000000
--1.050000 33010402.0000000000000
--0.750000 33020402.0000000000000
--0.450000 33030402.0000000000000
--0.150000 33040402.0000000000000
-0.150000 33050402.0000000000000
-0.450000 33060402.0000000000000
-0.750000 33070402.0000000000000
-1.050000 33080402.0000000000000
-1.350000 33090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/az.yl b/CarpetAttic/Cart3dTest/test/symmetric-z/az.yl
index 86cc7b69e..8a4a69164 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/az.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/az.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::az y (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 33050002
+0 0 0 0 0 5 1 2 33050102
+0 0 0 0 0 5 2 2 33050202
+0 0 0 0 0 5 3 2 33050302
+0 0 0 0 0 5 4 2 33050402
+0 0 0 0 0 5 5 2 33050502
+0 0 0 0 0 5 6 2 33050602
+0 0 0 0 0 5 7 2 33050702
+0 0 0 0 0 5 8 2 33050802
+0 0 0 0 0 5 9 2 33050902
-"Time = 0.000000
--1.350000 33040001.0000000000000
--1.050000 33040101.0000000000000
--0.750000 33040201.0000000000000
--0.450000 33040301.0000000000000
--0.150000 33040401.0000000000000
-0.150000 33040501.0000000000000
-0.450000 33040601.0000000000000
-0.750000 33040701.0000000000000
-1.050000 33040801.0000000000000
-1.350000 33040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 33050002
+1 0 0 0 0 5 1 2 33050102
+1 0 0 0 0 5 2 2 33050202
+1 0 0 0 0 5 3 2 33050302
+1 0 0 0 0 5 4 2 33050402
+1 0 0 0 0 5 5 2 33050502
+1 0 0 0 0 5 6 2 33050602
+1 0 0 0 0 5 7 2 33050702
+1 0 0 0 0 5 8 2 33050802
+1 0 0 0 0 5 9 2 33050902
+
-"Time = 1.000000
--1.350000 33040002.0000000000000
--1.050000 33040102.0000000000000
--0.750000 33040202.0000000000000
--0.450000 33040302.0000000000000
--0.150000 33040402.0000000000000
-0.150000 33040502.0000000000000
-0.450000 33040602.0000000000000
-0.750000 33040702.0000000000000
-1.050000 33040802.0000000000000
-1.350000 33040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/az.zl b/CarpetAttic/Cart3dTest/test/symmetric-z/az.zl
index 4cec17c45..cc4797e0a 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/az.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/az.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::az z (az)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 33050500
+0 0 0 0 0 5 5 1 33050501
+0 0 0 0 0 5 5 2 33050502
+0 0 0 0 0 5 5 3 33050503
+0 0 0 0 0 5 5 4 33050504
+0 0 0 0 0 5 5 5 33050505
+0 0 0 0 0 5 5 6 33050506
+0 0 0 0 0 5 5 7 33050507
+0 0 0 0 0 5 5 8 33050508
+0 0 0 0 0 5 5 9 33050509
-"Time = 0.000000
--0.450000 33040400.0000000000000
--0.150000 33040401.0000000000000
-0.150000 33040402.0000000000000
-0.450000 33040403.0000000000000
-0.750000 33040404.0000000000000
-1.050000 33040405.0000000000000
-1.350000 33040406.0000000000000
-1.650000 33040407.0000000000000
-1.950000 33040408.0000000000000
-2.250000 33040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 33050503
+1 0 0 0 0 5 5 1 33050502
+1 0 0 0 0 5 5 2 33050502
+1 0 0 0 0 5 5 3 33050503
+1 0 0 0 0 5 5 4 33050504
+1 0 0 0 0 5 5 5 33050505
+1 0 0 0 0 5 5 6 33050506
+1 0 0 0 0 5 5 7 33050507
+1 0 0 0 0 5 5 8 33050508
+1 0 0 0 0 5 5 9 33050509
+
-"Time = 1.000000
--0.450000 33040403.0000000000000
--0.150000 33040402.0000000000000
-0.150000 33040402.0000000000000
-0.450000 33040403.0000000000000
-0.750000 33040404.0000000000000
-1.050000 33040405.0000000000000
-1.350000 33040406.0000000000000
-1.650000 33040407.0000000000000
-1.950000 33040408.0000000000000
-2.250000 33040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_x.xl b/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_x.xl
index 33b36d0af..af3d5317e 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_x.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_x.xl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x x (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 -1.35
+0 0 0 0 0 1 5 2 -1.05
+0 0 0 0 0 2 5 2 -0.75
+0 0 0 0 0 3 5 2 -0.45
+0 0 0 0 0 4 5 2 -0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 6 5 2 0.45
+0 0 0 0 0 7 5 2 0.75
+0 0 0 0 0 8 5 2 1.05
+0 0 0 0 0 9 5 2 1.35
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 -1.35
+1 0 0 0 0 1 5 2 -1.05
+1 0 0 0 0 2 5 2 -0.75
+1 0 0 0 0 3 5 2 -0.45
+1 0 0 0 0 4 5 2 -0.15
+1 0 0 0 0 5 5 2 0.15
+1 0 0 0 0 6 5 2 0.45
+1 0 0 0 0 7 5 2 0.75
+1 0 0 0 0 8 5 2 1.05
+1 0 0 0 0 9 5 2 1.35
+
-"Time = 1.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_x.yl b/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_x.yl
index 52b13d0ae..ffac552e2 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_x.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_x.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x y (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 0.15
+0 0 0 0 0 5 1 2 0.15
+0 0 0 0 0 5 2 2 0.15
+0 0 0 0 0 5 3 2 0.15
+0 0 0 0 0 5 4 2 0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 5 6 2 0.15
+0 0 0 0 0 5 7 2 0.15
+0 0 0 0 0 5 8 2 0.15
+0 0 0 0 0 5 9 2 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 0.15
+1 0 0 0 0 5 1 2 0.15
+1 0 0 0 0 5 2 2 0.15
+1 0 0 0 0 5 3 2 0.15
+1 0 0 0 0 5 4 2 0.15
+1 0 0 0 0 5 5 2 0.15
+1 0 0 0 0 5 6 2 0.15
+1 0 0 0 0 5 7 2 0.15
+1 0 0 0 0 5 8 2 0.15
+1 0 0 0 0 5 9 2 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_x.zl b/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_x.zl
index e908f2032..1f894853b 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_x.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_x.zl
@@ -1,26 +1,34 @@
+# GRID::cart3d_x z (cart3d_x)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 0.15
+0 0 0 0 0 5 5 1 0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 5 5 3 0.15
+0 0 0 0 0 5 5 4 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 5 6 0.15
+0 0 0 0 0 5 5 7 0.15
+0 0 0 0 0 5 5 8 0.15
+0 0 0 0 0 5 5 9 0.15
-"Time = 0.000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 0.15
+1 0 0 0 0 5 5 1 0.15
+1 0 0 0 0 5 5 2 0.15
+1 0 0 0 0 5 5 3 0.15
+1 0 0 0 0 5 5 4 0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 5 5 6 0.15
+1 0 0 0 0 5 5 7 0.15
+1 0 0 0 0 5 5 8 0.15
+1 0 0 0 0 5 5 9 0.15
+
-"Time = 1.000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_y.xl b/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_y.xl
index 52b13d0ae..025be7f91 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_y.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_y.xl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y x (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 0.15
+0 0 0 0 0 1 5 2 0.15
+0 0 0 0 0 2 5 2 0.15
+0 0 0 0 0 3 5 2 0.15
+0 0 0 0 0 4 5 2 0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 6 5 2 0.15
+0 0 0 0 0 7 5 2 0.15
+0 0 0 0 0 8 5 2 0.15
+0 0 0 0 0 9 5 2 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 0.15
+1 0 0 0 0 1 5 2 0.15
+1 0 0 0 0 2 5 2 0.15
+1 0 0 0 0 3 5 2 0.15
+1 0 0 0 0 4 5 2 0.15
+1 0 0 0 0 5 5 2 0.15
+1 0 0 0 0 6 5 2 0.15
+1 0 0 0 0 7 5 2 0.15
+1 0 0 0 0 8 5 2 0.15
+1 0 0 0 0 9 5 2 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_y.yl b/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_y.yl
index 33b36d0af..34e77908f 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_y.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_y.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y y (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 -1.35
+0 0 0 0 0 5 1 2 -1.05
+0 0 0 0 0 5 2 2 -0.75
+0 0 0 0 0 5 3 2 -0.45
+0 0 0 0 0 5 4 2 -0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 5 6 2 0.45
+0 0 0 0 0 5 7 2 0.75
+0 0 0 0 0 5 8 2 1.05
+0 0 0 0 0 5 9 2 1.35
-"Time = 0.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 -1.35
+1 0 0 0 0 5 1 2 -1.05
+1 0 0 0 0 5 2 2 -0.75
+1 0 0 0 0 5 3 2 -0.45
+1 0 0 0 0 5 4 2 -0.15
+1 0 0 0 0 5 5 2 0.15
+1 0 0 0 0 5 6 2 0.45
+1 0 0 0 0 5 7 2 0.75
+1 0 0 0 0 5 8 2 1.05
+1 0 0 0 0 5 9 2 1.35
+
-"Time = 1.000000
--1.350000 -1.3500000000000
--1.050000 -1.0500000000000
--0.750000 -0.7500000000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_y.zl b/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_y.zl
index e908f2032..f32f3acb9 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_y.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_y.zl
@@ -1,26 +1,34 @@
+# GRID::cart3d_y z (cart3d_y)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 0.15
+0 0 0 0 0 5 5 1 0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 5 5 3 0.15
+0 0 0 0 0 5 5 4 0.15
+0 0 0 0 0 5 5 5 0.15
+0 0 0 0 0 5 5 6 0.15
+0 0 0 0 0 5 5 7 0.15
+0 0 0 0 0 5 5 8 0.15
+0 0 0 0 0 5 5 9 0.15
-"Time = 0.000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 0.15
+1 0 0 0 0 5 5 1 0.15
+1 0 0 0 0 5 5 2 0.15
+1 0 0 0 0 5 5 3 0.15
+1 0 0 0 0 5 5 4 0.15
+1 0 0 0 0 5 5 5 0.15
+1 0 0 0 0 5 5 6 0.15
+1 0 0 0 0 5 5 7 0.15
+1 0 0 0 0 5 5 8 0.15
+1 0 0 0 0 5 5 9 0.15
+
-"Time = 1.000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
-1.650000 -0.1500000000000
-1.950000 -0.1500000000000
-2.250000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_z.xl b/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_z.xl
index 52b13d0ae..8c4b8799d 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_z.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_z.xl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z x (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 0.15
+0 0 0 0 0 1 5 2 0.15
+0 0 0 0 0 2 5 2 0.15
+0 0 0 0 0 3 5 2 0.15
+0 0 0 0 0 4 5 2 0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 6 5 2 0.15
+0 0 0 0 0 7 5 2 0.15
+0 0 0 0 0 8 5 2 0.15
+0 0 0 0 0 9 5 2 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 0.15
+1 0 0 0 0 1 5 2 0.15
+1 0 0 0 0 2 5 2 0.15
+1 0 0 0 0 3 5 2 0.15
+1 0 0 0 0 4 5 2 0.15
+1 0 0 0 0 5 5 2 0.15
+1 0 0 0 0 6 5 2 0.15
+1 0 0 0 0 7 5 2 0.15
+1 0 0 0 0 8 5 2 0.15
+1 0 0 0 0 9 5 2 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_z.yl b/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_z.yl
index 52b13d0ae..16379780b 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_z.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_z.yl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z y (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 0.15
+0 0 0 0 0 5 1 2 0.15
+0 0 0 0 0 5 2 2 0.15
+0 0 0 0 0 5 3 2 0.15
+0 0 0 0 0 5 4 2 0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 5 6 2 0.15
+0 0 0 0 0 5 7 2 0.15
+0 0 0 0 0 5 8 2 0.15
+0 0 0 0 0 5 9 2 0.15
-"Time = 0.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 0.15
+1 0 0 0 0 5 1 2 0.15
+1 0 0 0 0 5 2 2 0.15
+1 0 0 0 0 5 3 2 0.15
+1 0 0 0 0 5 4 2 0.15
+1 0 0 0 0 5 5 2 0.15
+1 0 0 0 0 5 6 2 0.15
+1 0 0 0 0 5 7 2 0.15
+1 0 0 0 0 5 8 2 0.15
+1 0 0 0 0 5 9 2 0.15
+
-"Time = 1.000000
--1.350000 -0.1500000000000
--1.050000 -0.1500000000000
--0.750000 -0.1500000000000
--0.450000 -0.1500000000000
--0.150000 -0.1500000000000
-0.150000 -0.1500000000000
-0.450000 -0.1500000000000
-0.750000 -0.1500000000000
-1.050000 -0.1500000000000
-1.350000 -0.1500000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_z.zl b/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_z.zl
index 20ba9f007..782306204 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_z.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/cart3d_z.zl
@@ -1,26 +1,34 @@
+# GRID::cart3d_z z (cart3d_z)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 -0.45
+0 0 0 0 0 5 5 1 -0.15
+0 0 0 0 0 5 5 2 0.15
+0 0 0 0 0 5 5 3 0.45
+0 0 0 0 0 5 5 4 0.75
+0 0 0 0 0 5 5 5 1.05
+0 0 0 0 0 5 5 6 1.35
+0 0 0 0 0 5 5 7 1.65
+0 0 0 0 0 5 5 8 1.95
+0 0 0 0 0 5 5 9 2.25
-"Time = 0.000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 -0.45
+1 0 0 0 0 5 5 1 -0.15
+1 0 0 0 0 5 5 2 0.15
+1 0 0 0 0 5 5 3 0.45
+1 0 0 0 0 5 5 4 0.75
+1 0 0 0 0 5 5 5 1.05
+1 0 0 0 0 5 5 6 1.35
+1 0 0 0 0 5 5 7 1.65
+1 0 0 0 0 5 5 8 1.95
+1 0 0 0 0 5 5 9 2.25
+
-"Time = 1.000000
--0.450000 -0.4500000000000
--0.150000 -0.1500000000000
-0.150000 0.1500000000000
-0.450000 0.4500000000000
-0.750000 0.7500000000000
-1.050000 1.0500000000000
-1.350000 1.3500000000000
-1.650000 1.6500000000000
-1.950000 1.9500000000000
-2.250000 2.2500000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/fxx.xl b/CarpetAttic/Cart3dTest/test/symmetric-z/fxx.xl
index 8bb143c5b..95f2f58d9 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/fxx.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/fxx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx x (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 41000502
+0 0 0 0 0 1 5 2 41010502
+0 0 0 0 0 2 5 2 41020502
+0 0 0 0 0 3 5 2 41030502
+0 0 0 0 0 4 5 2 41040502
+0 0 0 0 0 5 5 2 41050502
+0 0 0 0 0 6 5 2 41060502
+0 0 0 0 0 7 5 2 41070502
+0 0 0 0 0 8 5 2 41080502
+0 0 0 0 0 9 5 2 41090502
-"Time = 0.000000
--1.350000 41000401.0000000000000
--1.050000 41010401.0000000000000
--0.750000 41020401.0000000000000
--0.450000 41030401.0000000000000
--0.150000 41040401.0000000000000
-0.150000 41050401.0000000000000
-0.450000 41060401.0000000000000
-0.750000 41070401.0000000000000
-1.050000 41080401.0000000000000
-1.350000 41090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 41000502
+1 0 0 0 0 1 5 2 41010502
+1 0 0 0 0 2 5 2 41020502
+1 0 0 0 0 3 5 2 41030502
+1 0 0 0 0 4 5 2 41040502
+1 0 0 0 0 5 5 2 41050502
+1 0 0 0 0 6 5 2 41060502
+1 0 0 0 0 7 5 2 41070502
+1 0 0 0 0 8 5 2 41080502
+1 0 0 0 0 9 5 2 41090502
+
-"Time = 1.000000
--1.350000 41000402.0000000000000
--1.050000 41010402.0000000000000
--0.750000 41020402.0000000000000
--0.450000 41030402.0000000000000
--0.150000 41040402.0000000000000
-0.150000 41050402.0000000000000
-0.450000 41060402.0000000000000
-0.750000 41070402.0000000000000
-1.050000 41080402.0000000000000
-1.350000 41090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/fxx.yl b/CarpetAttic/Cart3dTest/test/symmetric-z/fxx.yl
index 6319e704c..45b9dc040 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/fxx.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/fxx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx y (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 41050002
+0 0 0 0 0 5 1 2 41050102
+0 0 0 0 0 5 2 2 41050202
+0 0 0 0 0 5 3 2 41050302
+0 0 0 0 0 5 4 2 41050402
+0 0 0 0 0 5 5 2 41050502
+0 0 0 0 0 5 6 2 41050602
+0 0 0 0 0 5 7 2 41050702
+0 0 0 0 0 5 8 2 41050802
+0 0 0 0 0 5 9 2 41050902
-"Time = 0.000000
--1.350000 41040001.0000000000000
--1.050000 41040101.0000000000000
--0.750000 41040201.0000000000000
--0.450000 41040301.0000000000000
--0.150000 41040401.0000000000000
-0.150000 41040501.0000000000000
-0.450000 41040601.0000000000000
-0.750000 41040701.0000000000000
-1.050000 41040801.0000000000000
-1.350000 41040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 41050002
+1 0 0 0 0 5 1 2 41050102
+1 0 0 0 0 5 2 2 41050202
+1 0 0 0 0 5 3 2 41050302
+1 0 0 0 0 5 4 2 41050402
+1 0 0 0 0 5 5 2 41050502
+1 0 0 0 0 5 6 2 41050602
+1 0 0 0 0 5 7 2 41050702
+1 0 0 0 0 5 8 2 41050802
+1 0 0 0 0 5 9 2 41050902
+
-"Time = 1.000000
--1.350000 41040002.0000000000000
--1.050000 41040102.0000000000000
--0.750000 41040202.0000000000000
--0.450000 41040302.0000000000000
--0.150000 41040402.0000000000000
-0.150000 41040502.0000000000000
-0.450000 41040602.0000000000000
-0.750000 41040702.0000000000000
-1.050000 41040802.0000000000000
-1.350000 41040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/fxx.zl b/CarpetAttic/Cart3dTest/test/symmetric-z/fxx.zl
index d9b3ca546..7cf334992 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/fxx.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/fxx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxx z (fxx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 41050500
+0 0 0 0 0 5 5 1 41050501
+0 0 0 0 0 5 5 2 41050502
+0 0 0 0 0 5 5 3 41050503
+0 0 0 0 0 5 5 4 41050504
+0 0 0 0 0 5 5 5 41050505
+0 0 0 0 0 5 5 6 41050506
+0 0 0 0 0 5 5 7 41050507
+0 0 0 0 0 5 5 8 41050508
+0 0 0 0 0 5 5 9 41050509
-"Time = 0.000000
--0.450000 41040400.0000000000000
--0.150000 41040401.0000000000000
-0.150000 41040402.0000000000000
-0.450000 41040403.0000000000000
-0.750000 41040404.0000000000000
-1.050000 41040405.0000000000000
-1.350000 41040406.0000000000000
-1.650000 41040407.0000000000000
-1.950000 41040408.0000000000000
-2.250000 41040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 41050503
+1 0 0 0 0 5 5 1 41050502
+1 0 0 0 0 5 5 2 41050502
+1 0 0 0 0 5 5 3 41050503
+1 0 0 0 0 5 5 4 41050504
+1 0 0 0 0 5 5 5 41050505
+1 0 0 0 0 5 5 6 41050506
+1 0 0 0 0 5 5 7 41050507
+1 0 0 0 0 5 5 8 41050508
+1 0 0 0 0 5 5 9 41050509
+
-"Time = 1.000000
--0.450000 41040403.0000000000000
--0.150000 41040402.0000000000000
-0.150000 41040402.0000000000000
-0.450000 41040403.0000000000000
-0.750000 41040404.0000000000000
-1.050000 41040405.0000000000000
-1.350000 41040406.0000000000000
-1.650000 41040407.0000000000000
-1.950000 41040408.0000000000000
-2.250000 41040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/fxy.xl b/CarpetAttic/Cart3dTest/test/symmetric-z/fxy.xl
index b2fdafaef..698d922be 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/fxy.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/fxy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy x (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 42000502
+0 0 0 0 0 1 5 2 42010502
+0 0 0 0 0 2 5 2 42020502
+0 0 0 0 0 3 5 2 42030502
+0 0 0 0 0 4 5 2 42040502
+0 0 0 0 0 5 5 2 42050502
+0 0 0 0 0 6 5 2 42060502
+0 0 0 0 0 7 5 2 42070502
+0 0 0 0 0 8 5 2 42080502
+0 0 0 0 0 9 5 2 42090502
-"Time = 0.000000
--1.350000 42000401.0000000000000
--1.050000 42010401.0000000000000
--0.750000 42020401.0000000000000
--0.450000 42030401.0000000000000
--0.150000 42040401.0000000000000
-0.150000 42050401.0000000000000
-0.450000 42060401.0000000000000
-0.750000 42070401.0000000000000
-1.050000 42080401.0000000000000
-1.350000 42090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 42000502
+1 0 0 0 0 1 5 2 42010502
+1 0 0 0 0 2 5 2 42020502
+1 0 0 0 0 3 5 2 42030502
+1 0 0 0 0 4 5 2 42040502
+1 0 0 0 0 5 5 2 42050502
+1 0 0 0 0 6 5 2 42060502
+1 0 0 0 0 7 5 2 42070502
+1 0 0 0 0 8 5 2 42080502
+1 0 0 0 0 9 5 2 42090502
+
-"Time = 1.000000
--1.350000 42000402.0000000000000
--1.050000 42010402.0000000000000
--0.750000 42020402.0000000000000
--0.450000 42030402.0000000000000
--0.150000 42040402.0000000000000
-0.150000 42050402.0000000000000
-0.450000 42060402.0000000000000
-0.750000 42070402.0000000000000
-1.050000 42080402.0000000000000
-1.350000 42090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/fxy.yl b/CarpetAttic/Cart3dTest/test/symmetric-z/fxy.yl
index 9057ecb22..57400f89a 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/fxy.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/fxy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy y (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 42050002
+0 0 0 0 0 5 1 2 42050102
+0 0 0 0 0 5 2 2 42050202
+0 0 0 0 0 5 3 2 42050302
+0 0 0 0 0 5 4 2 42050402
+0 0 0 0 0 5 5 2 42050502
+0 0 0 0 0 5 6 2 42050602
+0 0 0 0 0 5 7 2 42050702
+0 0 0 0 0 5 8 2 42050802
+0 0 0 0 0 5 9 2 42050902
-"Time = 0.000000
--1.350000 42040001.0000000000000
--1.050000 42040101.0000000000000
--0.750000 42040201.0000000000000
--0.450000 42040301.0000000000000
--0.150000 42040401.0000000000000
-0.150000 42040501.0000000000000
-0.450000 42040601.0000000000000
-0.750000 42040701.0000000000000
-1.050000 42040801.0000000000000
-1.350000 42040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 42050002
+1 0 0 0 0 5 1 2 42050102
+1 0 0 0 0 5 2 2 42050202
+1 0 0 0 0 5 3 2 42050302
+1 0 0 0 0 5 4 2 42050402
+1 0 0 0 0 5 5 2 42050502
+1 0 0 0 0 5 6 2 42050602
+1 0 0 0 0 5 7 2 42050702
+1 0 0 0 0 5 8 2 42050802
+1 0 0 0 0 5 9 2 42050902
+
-"Time = 1.000000
--1.350000 42040002.0000000000000
--1.050000 42040102.0000000000000
--0.750000 42040202.0000000000000
--0.450000 42040302.0000000000000
--0.150000 42040402.0000000000000
-0.150000 42040502.0000000000000
-0.450000 42040602.0000000000000
-0.750000 42040702.0000000000000
-1.050000 42040802.0000000000000
-1.350000 42040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/fxy.zl b/CarpetAttic/Cart3dTest/test/symmetric-z/fxy.zl
index 7cd2a4613..73e972b88 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/fxy.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/fxy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxy z (fxy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 42050500
+0 0 0 0 0 5 5 1 42050501
+0 0 0 0 0 5 5 2 42050502
+0 0 0 0 0 5 5 3 42050503
+0 0 0 0 0 5 5 4 42050504
+0 0 0 0 0 5 5 5 42050505
+0 0 0 0 0 5 5 6 42050506
+0 0 0 0 0 5 5 7 42050507
+0 0 0 0 0 5 5 8 42050508
+0 0 0 0 0 5 5 9 42050509
-"Time = 0.000000
--0.450000 42040400.0000000000000
--0.150000 42040401.0000000000000
-0.150000 42040402.0000000000000
-0.450000 42040403.0000000000000
-0.750000 42040404.0000000000000
-1.050000 42040405.0000000000000
-1.350000 42040406.0000000000000
-1.650000 42040407.0000000000000
-1.950000 42040408.0000000000000
-2.250000 42040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 42050503
+1 0 0 0 0 5 5 1 42050502
+1 0 0 0 0 5 5 2 42050502
+1 0 0 0 0 5 5 3 42050503
+1 0 0 0 0 5 5 4 42050504
+1 0 0 0 0 5 5 5 42050505
+1 0 0 0 0 5 5 6 42050506
+1 0 0 0 0 5 5 7 42050507
+1 0 0 0 0 5 5 8 42050508
+1 0 0 0 0 5 5 9 42050509
+
-"Time = 1.000000
--0.450000 42040403.0000000000000
--0.150000 42040402.0000000000000
-0.150000 42040402.0000000000000
-0.450000 42040403.0000000000000
-0.750000 42040404.0000000000000
-1.050000 42040405.0000000000000
-1.350000 42040406.0000000000000
-1.650000 42040407.0000000000000
-1.950000 42040408.0000000000000
-2.250000 42040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/fxz.xl b/CarpetAttic/Cart3dTest/test/symmetric-z/fxz.xl
index 7661e740d..eb671b85f 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/fxz.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/fxz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz x (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 43000502
+0 0 0 0 0 1 5 2 43010502
+0 0 0 0 0 2 5 2 43020502
+0 0 0 0 0 3 5 2 43030502
+0 0 0 0 0 4 5 2 43040502
+0 0 0 0 0 5 5 2 43050502
+0 0 0 0 0 6 5 2 43060502
+0 0 0 0 0 7 5 2 43070502
+0 0 0 0 0 8 5 2 43080502
+0 0 0 0 0 9 5 2 43090502
-"Time = 0.000000
--1.350000 43000401.0000000000000
--1.050000 43010401.0000000000000
--0.750000 43020401.0000000000000
--0.450000 43030401.0000000000000
--0.150000 43040401.0000000000000
-0.150000 43050401.0000000000000
-0.450000 43060401.0000000000000
-0.750000 43070401.0000000000000
-1.050000 43080401.0000000000000
-1.350000 43090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 43000502
+1 0 0 0 0 1 5 2 43010502
+1 0 0 0 0 2 5 2 43020502
+1 0 0 0 0 3 5 2 43030502
+1 0 0 0 0 4 5 2 43040502
+1 0 0 0 0 5 5 2 43050502
+1 0 0 0 0 6 5 2 43060502
+1 0 0 0 0 7 5 2 43070502
+1 0 0 0 0 8 5 2 43080502
+1 0 0 0 0 9 5 2 43090502
+
-"Time = 1.000000
--1.350000 -43000402.0000000000000
--1.050000 -43010402.0000000000000
--0.750000 -43020402.0000000000000
--0.450000 -43030402.0000000000000
--0.150000 -43040402.0000000000000
-0.150000 -43050402.0000000000000
-0.450000 -43060402.0000000000000
-0.750000 -43070402.0000000000000
-1.050000 -43080402.0000000000000
-1.350000 -43090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/fxz.yl b/CarpetAttic/Cart3dTest/test/symmetric-z/fxz.yl
index 580d551a4..76fe56c05 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/fxz.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/fxz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz y (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 43050002
+0 0 0 0 0 5 1 2 43050102
+0 0 0 0 0 5 2 2 43050202
+0 0 0 0 0 5 3 2 43050302
+0 0 0 0 0 5 4 2 43050402
+0 0 0 0 0 5 5 2 43050502
+0 0 0 0 0 5 6 2 43050602
+0 0 0 0 0 5 7 2 43050702
+0 0 0 0 0 5 8 2 43050802
+0 0 0 0 0 5 9 2 43050902
-"Time = 0.000000
--1.350000 43040001.0000000000000
--1.050000 43040101.0000000000000
--0.750000 43040201.0000000000000
--0.450000 43040301.0000000000000
--0.150000 43040401.0000000000000
-0.150000 43040501.0000000000000
-0.450000 43040601.0000000000000
-0.750000 43040701.0000000000000
-1.050000 43040801.0000000000000
-1.350000 43040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 43050002
+1 0 0 0 0 5 1 2 43050102
+1 0 0 0 0 5 2 2 43050202
+1 0 0 0 0 5 3 2 43050302
+1 0 0 0 0 5 4 2 43050402
+1 0 0 0 0 5 5 2 43050502
+1 0 0 0 0 5 6 2 43050602
+1 0 0 0 0 5 7 2 43050702
+1 0 0 0 0 5 8 2 43050802
+1 0 0 0 0 5 9 2 43050902
+
-"Time = 1.000000
--1.350000 -43040002.0000000000000
--1.050000 -43040102.0000000000000
--0.750000 -43040202.0000000000000
--0.450000 -43040302.0000000000000
--0.150000 -43040402.0000000000000
-0.150000 -43040502.0000000000000
-0.450000 -43040602.0000000000000
-0.750000 -43040702.0000000000000
-1.050000 -43040802.0000000000000
-1.350000 -43040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/fxz.zl b/CarpetAttic/Cart3dTest/test/symmetric-z/fxz.zl
index a7d1ea895..35900ef4e 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/fxz.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/fxz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fxz z (fxz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 43050500
+0 0 0 0 0 5 5 1 43050501
+0 0 0 0 0 5 5 2 43050502
+0 0 0 0 0 5 5 3 43050503
+0 0 0 0 0 5 5 4 43050504
+0 0 0 0 0 5 5 5 43050505
+0 0 0 0 0 5 5 6 43050506
+0 0 0 0 0 5 5 7 43050507
+0 0 0 0 0 5 5 8 43050508
+0 0 0 0 0 5 5 9 43050509
-"Time = 0.000000
--0.450000 43040400.0000000000000
--0.150000 43040401.0000000000000
-0.150000 43040402.0000000000000
-0.450000 43040403.0000000000000
-0.750000 43040404.0000000000000
-1.050000 43040405.0000000000000
-1.350000 43040406.0000000000000
-1.650000 43040407.0000000000000
-1.950000 43040408.0000000000000
-2.250000 43040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 -43050503
+1 0 0 0 0 5 5 1 -43050502
+1 0 0 0 0 5 5 2 43050502
+1 0 0 0 0 5 5 3 43050503
+1 0 0 0 0 5 5 4 43050504
+1 0 0 0 0 5 5 5 43050505
+1 0 0 0 0 5 5 6 43050506
+1 0 0 0 0 5 5 7 43050507
+1 0 0 0 0 5 5 8 43050508
+1 0 0 0 0 5 5 9 43050509
+
-"Time = 1.000000
--0.450000 -43040403.0000000000000
--0.150000 -43040402.0000000000000
-0.150000 43040402.0000000000000
-0.450000 43040403.0000000000000
-0.750000 43040404.0000000000000
-1.050000 43040405.0000000000000
-1.350000 43040406.0000000000000
-1.650000 43040407.0000000000000
-1.950000 43040408.0000000000000
-2.250000 43040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/fyx.xl b/CarpetAttic/Cart3dTest/test/symmetric-z/fyx.xl
index 2e3a07210..caa8164cc 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/fyx.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/fyx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx x (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 44000502
+0 0 0 0 0 1 5 2 44010502
+0 0 0 0 0 2 5 2 44020502
+0 0 0 0 0 3 5 2 44030502
+0 0 0 0 0 4 5 2 44040502
+0 0 0 0 0 5 5 2 44050502
+0 0 0 0 0 6 5 2 44060502
+0 0 0 0 0 7 5 2 44070502
+0 0 0 0 0 8 5 2 44080502
+0 0 0 0 0 9 5 2 44090502
-"Time = 0.000000
--1.350000 44000401.0000000000000
--1.050000 44010401.0000000000000
--0.750000 44020401.0000000000000
--0.450000 44030401.0000000000000
--0.150000 44040401.0000000000000
-0.150000 44050401.0000000000000
-0.450000 44060401.0000000000000
-0.750000 44070401.0000000000000
-1.050000 44080401.0000000000000
-1.350000 44090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 44000502
+1 0 0 0 0 1 5 2 44010502
+1 0 0 0 0 2 5 2 44020502
+1 0 0 0 0 3 5 2 44030502
+1 0 0 0 0 4 5 2 44040502
+1 0 0 0 0 5 5 2 44050502
+1 0 0 0 0 6 5 2 44060502
+1 0 0 0 0 7 5 2 44070502
+1 0 0 0 0 8 5 2 44080502
+1 0 0 0 0 9 5 2 44090502
+
-"Time = 1.000000
--1.350000 44000402.0000000000000
--1.050000 44010402.0000000000000
--0.750000 44020402.0000000000000
--0.450000 44030402.0000000000000
--0.150000 44040402.0000000000000
-0.150000 44050402.0000000000000
-0.450000 44060402.0000000000000
-0.750000 44070402.0000000000000
-1.050000 44080402.0000000000000
-1.350000 44090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/fyx.yl b/CarpetAttic/Cart3dTest/test/symmetric-z/fyx.yl
index 682104849..2e7f66e3d 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/fyx.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/fyx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx y (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 44050002
+0 0 0 0 0 5 1 2 44050102
+0 0 0 0 0 5 2 2 44050202
+0 0 0 0 0 5 3 2 44050302
+0 0 0 0 0 5 4 2 44050402
+0 0 0 0 0 5 5 2 44050502
+0 0 0 0 0 5 6 2 44050602
+0 0 0 0 0 5 7 2 44050702
+0 0 0 0 0 5 8 2 44050802
+0 0 0 0 0 5 9 2 44050902
-"Time = 0.000000
--1.350000 44040001.0000000000000
--1.050000 44040101.0000000000000
--0.750000 44040201.0000000000000
--0.450000 44040301.0000000000000
--0.150000 44040401.0000000000000
-0.150000 44040501.0000000000000
-0.450000 44040601.0000000000000
-0.750000 44040701.0000000000000
-1.050000 44040801.0000000000000
-1.350000 44040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 44050002
+1 0 0 0 0 5 1 2 44050102
+1 0 0 0 0 5 2 2 44050202
+1 0 0 0 0 5 3 2 44050302
+1 0 0 0 0 5 4 2 44050402
+1 0 0 0 0 5 5 2 44050502
+1 0 0 0 0 5 6 2 44050602
+1 0 0 0 0 5 7 2 44050702
+1 0 0 0 0 5 8 2 44050802
+1 0 0 0 0 5 9 2 44050902
+
-"Time = 1.000000
--1.350000 44040002.0000000000000
--1.050000 44040102.0000000000000
--0.750000 44040202.0000000000000
--0.450000 44040302.0000000000000
--0.150000 44040402.0000000000000
-0.150000 44040502.0000000000000
-0.450000 44040602.0000000000000
-0.750000 44040702.0000000000000
-1.050000 44040802.0000000000000
-1.350000 44040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/fyx.zl b/CarpetAttic/Cart3dTest/test/symmetric-z/fyx.zl
index 1c46e3da5..db9cd5c51 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/fyx.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/fyx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyx z (fyx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 44050500
+0 0 0 0 0 5 5 1 44050501
+0 0 0 0 0 5 5 2 44050502
+0 0 0 0 0 5 5 3 44050503
+0 0 0 0 0 5 5 4 44050504
+0 0 0 0 0 5 5 5 44050505
+0 0 0 0 0 5 5 6 44050506
+0 0 0 0 0 5 5 7 44050507
+0 0 0 0 0 5 5 8 44050508
+0 0 0 0 0 5 5 9 44050509
-"Time = 0.000000
--0.450000 44040400.0000000000000
--0.150000 44040401.0000000000000
-0.150000 44040402.0000000000000
-0.450000 44040403.0000000000000
-0.750000 44040404.0000000000000
-1.050000 44040405.0000000000000
-1.350000 44040406.0000000000000
-1.650000 44040407.0000000000000
-1.950000 44040408.0000000000000
-2.250000 44040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 44050503
+1 0 0 0 0 5 5 1 44050502
+1 0 0 0 0 5 5 2 44050502
+1 0 0 0 0 5 5 3 44050503
+1 0 0 0 0 5 5 4 44050504
+1 0 0 0 0 5 5 5 44050505
+1 0 0 0 0 5 5 6 44050506
+1 0 0 0 0 5 5 7 44050507
+1 0 0 0 0 5 5 8 44050508
+1 0 0 0 0 5 5 9 44050509
+
-"Time = 1.000000
--0.450000 44040403.0000000000000
--0.150000 44040402.0000000000000
-0.150000 44040402.0000000000000
-0.450000 44040403.0000000000000
-0.750000 44040404.0000000000000
-1.050000 44040405.0000000000000
-1.350000 44040406.0000000000000
-1.650000 44040407.0000000000000
-1.950000 44040408.0000000000000
-2.250000 44040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/fyy.xl b/CarpetAttic/Cart3dTest/test/symmetric-z/fyy.xl
index c4994f831..d268589ad 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/fyy.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/fyy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy x (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 45000502
+0 0 0 0 0 1 5 2 45010502
+0 0 0 0 0 2 5 2 45020502
+0 0 0 0 0 3 5 2 45030502
+0 0 0 0 0 4 5 2 45040502
+0 0 0 0 0 5 5 2 45050502
+0 0 0 0 0 6 5 2 45060502
+0 0 0 0 0 7 5 2 45070502
+0 0 0 0 0 8 5 2 45080502
+0 0 0 0 0 9 5 2 45090502
-"Time = 0.000000
--1.350000 45000401.0000000000000
--1.050000 45010401.0000000000000
--0.750000 45020401.0000000000000
--0.450000 45030401.0000000000000
--0.150000 45040401.0000000000000
-0.150000 45050401.0000000000000
-0.450000 45060401.0000000000000
-0.750000 45070401.0000000000000
-1.050000 45080401.0000000000000
-1.350000 45090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 45000502
+1 0 0 0 0 1 5 2 45010502
+1 0 0 0 0 2 5 2 45020502
+1 0 0 0 0 3 5 2 45030502
+1 0 0 0 0 4 5 2 45040502
+1 0 0 0 0 5 5 2 45050502
+1 0 0 0 0 6 5 2 45060502
+1 0 0 0 0 7 5 2 45070502
+1 0 0 0 0 8 5 2 45080502
+1 0 0 0 0 9 5 2 45090502
+
-"Time = 1.000000
--1.350000 45000402.0000000000000
--1.050000 45010402.0000000000000
--0.750000 45020402.0000000000000
--0.450000 45030402.0000000000000
--0.150000 45040402.0000000000000
-0.150000 45050402.0000000000000
-0.450000 45060402.0000000000000
-0.750000 45070402.0000000000000
-1.050000 45080402.0000000000000
-1.350000 45090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/fyy.yl b/CarpetAttic/Cart3dTest/test/symmetric-z/fyy.yl
index c613bf23b..f4c8638bd 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/fyy.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/fyy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy y (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 45050002
+0 0 0 0 0 5 1 2 45050102
+0 0 0 0 0 5 2 2 45050202
+0 0 0 0 0 5 3 2 45050302
+0 0 0 0 0 5 4 2 45050402
+0 0 0 0 0 5 5 2 45050502
+0 0 0 0 0 5 6 2 45050602
+0 0 0 0 0 5 7 2 45050702
+0 0 0 0 0 5 8 2 45050802
+0 0 0 0 0 5 9 2 45050902
-"Time = 0.000000
--1.350000 45040001.0000000000000
--1.050000 45040101.0000000000000
--0.750000 45040201.0000000000000
--0.450000 45040301.0000000000000
--0.150000 45040401.0000000000000
-0.150000 45040501.0000000000000
-0.450000 45040601.0000000000000
-0.750000 45040701.0000000000000
-1.050000 45040801.0000000000000
-1.350000 45040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 45050002
+1 0 0 0 0 5 1 2 45050102
+1 0 0 0 0 5 2 2 45050202
+1 0 0 0 0 5 3 2 45050302
+1 0 0 0 0 5 4 2 45050402
+1 0 0 0 0 5 5 2 45050502
+1 0 0 0 0 5 6 2 45050602
+1 0 0 0 0 5 7 2 45050702
+1 0 0 0 0 5 8 2 45050802
+1 0 0 0 0 5 9 2 45050902
+
-"Time = 1.000000
--1.350000 45040002.0000000000000
--1.050000 45040102.0000000000000
--0.750000 45040202.0000000000000
--0.450000 45040302.0000000000000
--0.150000 45040402.0000000000000
-0.150000 45040502.0000000000000
-0.450000 45040602.0000000000000
-0.750000 45040702.0000000000000
-1.050000 45040802.0000000000000
-1.350000 45040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/fyy.zl b/CarpetAttic/Cart3dTest/test/symmetric-z/fyy.zl
index 51beb5ba8..6810ad5c4 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/fyy.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/fyy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyy z (fyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 45050500
+0 0 0 0 0 5 5 1 45050501
+0 0 0 0 0 5 5 2 45050502
+0 0 0 0 0 5 5 3 45050503
+0 0 0 0 0 5 5 4 45050504
+0 0 0 0 0 5 5 5 45050505
+0 0 0 0 0 5 5 6 45050506
+0 0 0 0 0 5 5 7 45050507
+0 0 0 0 0 5 5 8 45050508
+0 0 0 0 0 5 5 9 45050509
-"Time = 0.000000
--0.450000 45040400.0000000000000
--0.150000 45040401.0000000000000
-0.150000 45040402.0000000000000
-0.450000 45040403.0000000000000
-0.750000 45040404.0000000000000
-1.050000 45040405.0000000000000
-1.350000 45040406.0000000000000
-1.650000 45040407.0000000000000
-1.950000 45040408.0000000000000
-2.250000 45040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 45050503
+1 0 0 0 0 5 5 1 45050502
+1 0 0 0 0 5 5 2 45050502
+1 0 0 0 0 5 5 3 45050503
+1 0 0 0 0 5 5 4 45050504
+1 0 0 0 0 5 5 5 45050505
+1 0 0 0 0 5 5 6 45050506
+1 0 0 0 0 5 5 7 45050507
+1 0 0 0 0 5 5 8 45050508
+1 0 0 0 0 5 5 9 45050509
+
-"Time = 1.000000
--0.450000 45040403.0000000000000
--0.150000 45040402.0000000000000
-0.150000 45040402.0000000000000
-0.450000 45040403.0000000000000
-0.750000 45040404.0000000000000
-1.050000 45040405.0000000000000
-1.350000 45040406.0000000000000
-1.650000 45040407.0000000000000
-1.950000 45040408.0000000000000
-2.250000 45040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/fyz.xl b/CarpetAttic/Cart3dTest/test/symmetric-z/fyz.xl
index 1dae820ac..d9da37975 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/fyz.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/fyz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz x (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 46000502
+0 0 0 0 0 1 5 2 46010502
+0 0 0 0 0 2 5 2 46020502
+0 0 0 0 0 3 5 2 46030502
+0 0 0 0 0 4 5 2 46040502
+0 0 0 0 0 5 5 2 46050502
+0 0 0 0 0 6 5 2 46060502
+0 0 0 0 0 7 5 2 46070502
+0 0 0 0 0 8 5 2 46080502
+0 0 0 0 0 9 5 2 46090502
-"Time = 0.000000
--1.350000 46000401.0000000000000
--1.050000 46010401.0000000000000
--0.750000 46020401.0000000000000
--0.450000 46030401.0000000000000
--0.150000 46040401.0000000000000
-0.150000 46050401.0000000000000
-0.450000 46060401.0000000000000
-0.750000 46070401.0000000000000
-1.050000 46080401.0000000000000
-1.350000 46090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 46000502
+1 0 0 0 0 1 5 2 46010502
+1 0 0 0 0 2 5 2 46020502
+1 0 0 0 0 3 5 2 46030502
+1 0 0 0 0 4 5 2 46040502
+1 0 0 0 0 5 5 2 46050502
+1 0 0 0 0 6 5 2 46060502
+1 0 0 0 0 7 5 2 46070502
+1 0 0 0 0 8 5 2 46080502
+1 0 0 0 0 9 5 2 46090502
+
-"Time = 1.000000
--1.350000 -46000402.0000000000000
--1.050000 -46010402.0000000000000
--0.750000 -46020402.0000000000000
--0.450000 -46030402.0000000000000
--0.150000 -46040402.0000000000000
-0.150000 -46050402.0000000000000
-0.450000 -46060402.0000000000000
-0.750000 -46070402.0000000000000
-1.050000 -46080402.0000000000000
-1.350000 -46090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/fyz.yl b/CarpetAttic/Cart3dTest/test/symmetric-z/fyz.yl
index 7558e5612..439d46104 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/fyz.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/fyz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz y (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 46050002
+0 0 0 0 0 5 1 2 46050102
+0 0 0 0 0 5 2 2 46050202
+0 0 0 0 0 5 3 2 46050302
+0 0 0 0 0 5 4 2 46050402
+0 0 0 0 0 5 5 2 46050502
+0 0 0 0 0 5 6 2 46050602
+0 0 0 0 0 5 7 2 46050702
+0 0 0 0 0 5 8 2 46050802
+0 0 0 0 0 5 9 2 46050902
-"Time = 0.000000
--1.350000 46040001.0000000000000
--1.050000 46040101.0000000000000
--0.750000 46040201.0000000000000
--0.450000 46040301.0000000000000
--0.150000 46040401.0000000000000
-0.150000 46040501.0000000000000
-0.450000 46040601.0000000000000
-0.750000 46040701.0000000000000
-1.050000 46040801.0000000000000
-1.350000 46040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 46050002
+1 0 0 0 0 5 1 2 46050102
+1 0 0 0 0 5 2 2 46050202
+1 0 0 0 0 5 3 2 46050302
+1 0 0 0 0 5 4 2 46050402
+1 0 0 0 0 5 5 2 46050502
+1 0 0 0 0 5 6 2 46050602
+1 0 0 0 0 5 7 2 46050702
+1 0 0 0 0 5 8 2 46050802
+1 0 0 0 0 5 9 2 46050902
+
-"Time = 1.000000
--1.350000 -46040002.0000000000000
--1.050000 -46040102.0000000000000
--0.750000 -46040202.0000000000000
--0.450000 -46040302.0000000000000
--0.150000 -46040402.0000000000000
-0.150000 -46040502.0000000000000
-0.450000 -46040602.0000000000000
-0.750000 -46040702.0000000000000
-1.050000 -46040802.0000000000000
-1.350000 -46040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/fyz.zl b/CarpetAttic/Cart3dTest/test/symmetric-z/fyz.zl
index 3854348e7..88664545b 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/fyz.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/fyz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fyz z (fyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 46050500
+0 0 0 0 0 5 5 1 46050501
+0 0 0 0 0 5 5 2 46050502
+0 0 0 0 0 5 5 3 46050503
+0 0 0 0 0 5 5 4 46050504
+0 0 0 0 0 5 5 5 46050505
+0 0 0 0 0 5 5 6 46050506
+0 0 0 0 0 5 5 7 46050507
+0 0 0 0 0 5 5 8 46050508
+0 0 0 0 0 5 5 9 46050509
-"Time = 0.000000
--0.450000 46040400.0000000000000
--0.150000 46040401.0000000000000
-0.150000 46040402.0000000000000
-0.450000 46040403.0000000000000
-0.750000 46040404.0000000000000
-1.050000 46040405.0000000000000
-1.350000 46040406.0000000000000
-1.650000 46040407.0000000000000
-1.950000 46040408.0000000000000
-2.250000 46040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 -46050503
+1 0 0 0 0 5 5 1 -46050502
+1 0 0 0 0 5 5 2 46050502
+1 0 0 0 0 5 5 3 46050503
+1 0 0 0 0 5 5 4 46050504
+1 0 0 0 0 5 5 5 46050505
+1 0 0 0 0 5 5 6 46050506
+1 0 0 0 0 5 5 7 46050507
+1 0 0 0 0 5 5 8 46050508
+1 0 0 0 0 5 5 9 46050509
+
-"Time = 1.000000
--0.450000 -46040403.0000000000000
--0.150000 -46040402.0000000000000
-0.150000 46040402.0000000000000
-0.450000 46040403.0000000000000
-0.750000 46040404.0000000000000
-1.050000 46040405.0000000000000
-1.350000 46040406.0000000000000
-1.650000 46040407.0000000000000
-1.950000 46040408.0000000000000
-2.250000 46040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/fzx.xl b/CarpetAttic/Cart3dTest/test/symmetric-z/fzx.xl
index 14e2ccac7..166ce0b93 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/fzx.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/fzx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx x (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 47000502
+0 0 0 0 0 1 5 2 47010502
+0 0 0 0 0 2 5 2 47020502
+0 0 0 0 0 3 5 2 47030502
+0 0 0 0 0 4 5 2 47040502
+0 0 0 0 0 5 5 2 47050502
+0 0 0 0 0 6 5 2 47060502
+0 0 0 0 0 7 5 2 47070502
+0 0 0 0 0 8 5 2 47080502
+0 0 0 0 0 9 5 2 47090502
-"Time = 0.000000
--1.350000 47000401.0000000000000
--1.050000 47010401.0000000000000
--0.750000 47020401.0000000000000
--0.450000 47030401.0000000000000
--0.150000 47040401.0000000000000
-0.150000 47050401.0000000000000
-0.450000 47060401.0000000000000
-0.750000 47070401.0000000000000
-1.050000 47080401.0000000000000
-1.350000 47090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 47000502
+1 0 0 0 0 1 5 2 47010502
+1 0 0 0 0 2 5 2 47020502
+1 0 0 0 0 3 5 2 47030502
+1 0 0 0 0 4 5 2 47040502
+1 0 0 0 0 5 5 2 47050502
+1 0 0 0 0 6 5 2 47060502
+1 0 0 0 0 7 5 2 47070502
+1 0 0 0 0 8 5 2 47080502
+1 0 0 0 0 9 5 2 47090502
+
-"Time = 1.000000
--1.350000 -47000402.0000000000000
--1.050000 -47010402.0000000000000
--0.750000 -47020402.0000000000000
--0.450000 -47030402.0000000000000
--0.150000 -47040402.0000000000000
-0.150000 -47050402.0000000000000
-0.450000 -47060402.0000000000000
-0.750000 -47070402.0000000000000
-1.050000 -47080402.0000000000000
-1.350000 -47090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/fzx.yl b/CarpetAttic/Cart3dTest/test/symmetric-z/fzx.yl
index 5033d26b9..d5bd56675 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/fzx.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/fzx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx y (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 47050002
+0 0 0 0 0 5 1 2 47050102
+0 0 0 0 0 5 2 2 47050202
+0 0 0 0 0 5 3 2 47050302
+0 0 0 0 0 5 4 2 47050402
+0 0 0 0 0 5 5 2 47050502
+0 0 0 0 0 5 6 2 47050602
+0 0 0 0 0 5 7 2 47050702
+0 0 0 0 0 5 8 2 47050802
+0 0 0 0 0 5 9 2 47050902
-"Time = 0.000000
--1.350000 47040001.0000000000000
--1.050000 47040101.0000000000000
--0.750000 47040201.0000000000000
--0.450000 47040301.0000000000000
--0.150000 47040401.0000000000000
-0.150000 47040501.0000000000000
-0.450000 47040601.0000000000000
-0.750000 47040701.0000000000000
-1.050000 47040801.0000000000000
-1.350000 47040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 47050002
+1 0 0 0 0 5 1 2 47050102
+1 0 0 0 0 5 2 2 47050202
+1 0 0 0 0 5 3 2 47050302
+1 0 0 0 0 5 4 2 47050402
+1 0 0 0 0 5 5 2 47050502
+1 0 0 0 0 5 6 2 47050602
+1 0 0 0 0 5 7 2 47050702
+1 0 0 0 0 5 8 2 47050802
+1 0 0 0 0 5 9 2 47050902
+
-"Time = 1.000000
--1.350000 -47040002.0000000000000
--1.050000 -47040102.0000000000000
--0.750000 -47040202.0000000000000
--0.450000 -47040302.0000000000000
--0.150000 -47040402.0000000000000
-0.150000 -47040502.0000000000000
-0.450000 -47040602.0000000000000
-0.750000 -47040702.0000000000000
-1.050000 -47040802.0000000000000
-1.350000 -47040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/fzx.zl b/CarpetAttic/Cart3dTest/test/symmetric-z/fzx.zl
index 00b1f1f97..6a7aaf327 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/fzx.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/fzx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzx z (fzx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 47050500
+0 0 0 0 0 5 5 1 47050501
+0 0 0 0 0 5 5 2 47050502
+0 0 0 0 0 5 5 3 47050503
+0 0 0 0 0 5 5 4 47050504
+0 0 0 0 0 5 5 5 47050505
+0 0 0 0 0 5 5 6 47050506
+0 0 0 0 0 5 5 7 47050507
+0 0 0 0 0 5 5 8 47050508
+0 0 0 0 0 5 5 9 47050509
-"Time = 0.000000
--0.450000 47040400.0000000000000
--0.150000 47040401.0000000000000
-0.150000 47040402.0000000000000
-0.450000 47040403.0000000000000
-0.750000 47040404.0000000000000
-1.050000 47040405.0000000000000
-1.350000 47040406.0000000000000
-1.650000 47040407.0000000000000
-1.950000 47040408.0000000000000
-2.250000 47040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 -47050503
+1 0 0 0 0 5 5 1 -47050502
+1 0 0 0 0 5 5 2 47050502
+1 0 0 0 0 5 5 3 47050503
+1 0 0 0 0 5 5 4 47050504
+1 0 0 0 0 5 5 5 47050505
+1 0 0 0 0 5 5 6 47050506
+1 0 0 0 0 5 5 7 47050507
+1 0 0 0 0 5 5 8 47050508
+1 0 0 0 0 5 5 9 47050509
+
-"Time = 1.000000
--0.450000 -47040403.0000000000000
--0.150000 -47040402.0000000000000
-0.150000 47040402.0000000000000
-0.450000 47040403.0000000000000
-0.750000 47040404.0000000000000
-1.050000 47040405.0000000000000
-1.350000 47040406.0000000000000
-1.650000 47040407.0000000000000
-1.950000 47040408.0000000000000
-2.250000 47040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/fzy.xl b/CarpetAttic/Cart3dTest/test/symmetric-z/fzy.xl
index 6c80e9453..67d0795b4 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/fzy.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/fzy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy x (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 48000502
+0 0 0 0 0 1 5 2 48010502
+0 0 0 0 0 2 5 2 48020502
+0 0 0 0 0 3 5 2 48030502
+0 0 0 0 0 4 5 2 48040502
+0 0 0 0 0 5 5 2 48050502
+0 0 0 0 0 6 5 2 48060502
+0 0 0 0 0 7 5 2 48070502
+0 0 0 0 0 8 5 2 48080502
+0 0 0 0 0 9 5 2 48090502
-"Time = 0.000000
--1.350000 48000401.0000000000000
--1.050000 48010401.0000000000000
--0.750000 48020401.0000000000000
--0.450000 48030401.0000000000000
--0.150000 48040401.0000000000000
-0.150000 48050401.0000000000000
-0.450000 48060401.0000000000000
-0.750000 48070401.0000000000000
-1.050000 48080401.0000000000000
-1.350000 48090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 48000502
+1 0 0 0 0 1 5 2 48010502
+1 0 0 0 0 2 5 2 48020502
+1 0 0 0 0 3 5 2 48030502
+1 0 0 0 0 4 5 2 48040502
+1 0 0 0 0 5 5 2 48050502
+1 0 0 0 0 6 5 2 48060502
+1 0 0 0 0 7 5 2 48070502
+1 0 0 0 0 8 5 2 48080502
+1 0 0 0 0 9 5 2 48090502
+
-"Time = 1.000000
--1.350000 -48000402.0000000000000
--1.050000 -48010402.0000000000000
--0.750000 -48020402.0000000000000
--0.450000 -48030402.0000000000000
--0.150000 -48040402.0000000000000
-0.150000 -48050402.0000000000000
-0.450000 -48060402.0000000000000
-0.750000 -48070402.0000000000000
-1.050000 -48080402.0000000000000
-1.350000 -48090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/fzy.yl b/CarpetAttic/Cart3dTest/test/symmetric-z/fzy.yl
index 7af4ef5d2..d4f39f9f5 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/fzy.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/fzy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy y (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 48050002
+0 0 0 0 0 5 1 2 48050102
+0 0 0 0 0 5 2 2 48050202
+0 0 0 0 0 5 3 2 48050302
+0 0 0 0 0 5 4 2 48050402
+0 0 0 0 0 5 5 2 48050502
+0 0 0 0 0 5 6 2 48050602
+0 0 0 0 0 5 7 2 48050702
+0 0 0 0 0 5 8 2 48050802
+0 0 0 0 0 5 9 2 48050902
-"Time = 0.000000
--1.350000 48040001.0000000000000
--1.050000 48040101.0000000000000
--0.750000 48040201.0000000000000
--0.450000 48040301.0000000000000
--0.150000 48040401.0000000000000
-0.150000 48040501.0000000000000
-0.450000 48040601.0000000000000
-0.750000 48040701.0000000000000
-1.050000 48040801.0000000000000
-1.350000 48040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 48050002
+1 0 0 0 0 5 1 2 48050102
+1 0 0 0 0 5 2 2 48050202
+1 0 0 0 0 5 3 2 48050302
+1 0 0 0 0 5 4 2 48050402
+1 0 0 0 0 5 5 2 48050502
+1 0 0 0 0 5 6 2 48050602
+1 0 0 0 0 5 7 2 48050702
+1 0 0 0 0 5 8 2 48050802
+1 0 0 0 0 5 9 2 48050902
+
-"Time = 1.000000
--1.350000 -48040002.0000000000000
--1.050000 -48040102.0000000000000
--0.750000 -48040202.0000000000000
--0.450000 -48040302.0000000000000
--0.150000 -48040402.0000000000000
-0.150000 -48040502.0000000000000
-0.450000 -48040602.0000000000000
-0.750000 -48040702.0000000000000
-1.050000 -48040802.0000000000000
-1.350000 -48040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/fzy.zl b/CarpetAttic/Cart3dTest/test/symmetric-z/fzy.zl
index 40ea92c2d..23ee48c3d 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/fzy.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/fzy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzy z (fzy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 48050500
+0 0 0 0 0 5 5 1 48050501
+0 0 0 0 0 5 5 2 48050502
+0 0 0 0 0 5 5 3 48050503
+0 0 0 0 0 5 5 4 48050504
+0 0 0 0 0 5 5 5 48050505
+0 0 0 0 0 5 5 6 48050506
+0 0 0 0 0 5 5 7 48050507
+0 0 0 0 0 5 5 8 48050508
+0 0 0 0 0 5 5 9 48050509
-"Time = 0.000000
--0.450000 48040400.0000000000000
--0.150000 48040401.0000000000000
-0.150000 48040402.0000000000000
-0.450000 48040403.0000000000000
-0.750000 48040404.0000000000000
-1.050000 48040405.0000000000000
-1.350000 48040406.0000000000000
-1.650000 48040407.0000000000000
-1.950000 48040408.0000000000000
-2.250000 48040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 -48050503
+1 0 0 0 0 5 5 1 -48050502
+1 0 0 0 0 5 5 2 48050502
+1 0 0 0 0 5 5 3 48050503
+1 0 0 0 0 5 5 4 48050504
+1 0 0 0 0 5 5 5 48050505
+1 0 0 0 0 5 5 6 48050506
+1 0 0 0 0 5 5 7 48050507
+1 0 0 0 0 5 5 8 48050508
+1 0 0 0 0 5 5 9 48050509
+
-"Time = 1.000000
--0.450000 -48040403.0000000000000
--0.150000 -48040402.0000000000000
-0.150000 48040402.0000000000000
-0.450000 48040403.0000000000000
-0.750000 48040404.0000000000000
-1.050000 48040405.0000000000000
-1.350000 48040406.0000000000000
-1.650000 48040407.0000000000000
-1.950000 48040408.0000000000000
-2.250000 48040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/fzz.xl b/CarpetAttic/Cart3dTest/test/symmetric-z/fzz.xl
index abcb766c4..ea6d43b75 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/fzz.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/fzz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz x (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 49000502
+0 0 0 0 0 1 5 2 49010502
+0 0 0 0 0 2 5 2 49020502
+0 0 0 0 0 3 5 2 49030502
+0 0 0 0 0 4 5 2 49040502
+0 0 0 0 0 5 5 2 49050502
+0 0 0 0 0 6 5 2 49060502
+0 0 0 0 0 7 5 2 49070502
+0 0 0 0 0 8 5 2 49080502
+0 0 0 0 0 9 5 2 49090502
-"Time = 0.000000
--1.350000 49000401.0000000000000
--1.050000 49010401.0000000000000
--0.750000 49020401.0000000000000
--0.450000 49030401.0000000000000
--0.150000 49040401.0000000000000
-0.150000 49050401.0000000000000
-0.450000 49060401.0000000000000
-0.750000 49070401.0000000000000
-1.050000 49080401.0000000000000
-1.350000 49090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 49000502
+1 0 0 0 0 1 5 2 49010502
+1 0 0 0 0 2 5 2 49020502
+1 0 0 0 0 3 5 2 49030502
+1 0 0 0 0 4 5 2 49040502
+1 0 0 0 0 5 5 2 49050502
+1 0 0 0 0 6 5 2 49060502
+1 0 0 0 0 7 5 2 49070502
+1 0 0 0 0 8 5 2 49080502
+1 0 0 0 0 9 5 2 49090502
+
-"Time = 1.000000
--1.350000 49000402.0000000000000
--1.050000 49010402.0000000000000
--0.750000 49020402.0000000000000
--0.450000 49030402.0000000000000
--0.150000 49040402.0000000000000
-0.150000 49050402.0000000000000
-0.450000 49060402.0000000000000
-0.750000 49070402.0000000000000
-1.050000 49080402.0000000000000
-1.350000 49090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/fzz.yl b/CarpetAttic/Cart3dTest/test/symmetric-z/fzz.yl
index b851d68d1..4259fdddb 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/fzz.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/fzz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz y (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 49050002
+0 0 0 0 0 5 1 2 49050102
+0 0 0 0 0 5 2 2 49050202
+0 0 0 0 0 5 3 2 49050302
+0 0 0 0 0 5 4 2 49050402
+0 0 0 0 0 5 5 2 49050502
+0 0 0 0 0 5 6 2 49050602
+0 0 0 0 0 5 7 2 49050702
+0 0 0 0 0 5 8 2 49050802
+0 0 0 0 0 5 9 2 49050902
-"Time = 0.000000
--1.350000 49040001.0000000000000
--1.050000 49040101.0000000000000
--0.750000 49040201.0000000000000
--0.450000 49040301.0000000000000
--0.150000 49040401.0000000000000
-0.150000 49040501.0000000000000
-0.450000 49040601.0000000000000
-0.750000 49040701.0000000000000
-1.050000 49040801.0000000000000
-1.350000 49040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 49050002
+1 0 0 0 0 5 1 2 49050102
+1 0 0 0 0 5 2 2 49050202
+1 0 0 0 0 5 3 2 49050302
+1 0 0 0 0 5 4 2 49050402
+1 0 0 0 0 5 5 2 49050502
+1 0 0 0 0 5 6 2 49050602
+1 0 0 0 0 5 7 2 49050702
+1 0 0 0 0 5 8 2 49050802
+1 0 0 0 0 5 9 2 49050902
+
-"Time = 1.000000
--1.350000 49040002.0000000000000
--1.050000 49040102.0000000000000
--0.750000 49040202.0000000000000
--0.450000 49040302.0000000000000
--0.150000 49040402.0000000000000
-0.150000 49040502.0000000000000
-0.450000 49040602.0000000000000
-0.750000 49040702.0000000000000
-1.050000 49040802.0000000000000
-1.350000 49040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/fzz.zl b/CarpetAttic/Cart3dTest/test/symmetric-z/fzz.zl
index 47b36a33f..12f4d1be3 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/fzz.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/fzz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::fzz z (fzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 49050500
+0 0 0 0 0 5 5 1 49050501
+0 0 0 0 0 5 5 2 49050502
+0 0 0 0 0 5 5 3 49050503
+0 0 0 0 0 5 5 4 49050504
+0 0 0 0 0 5 5 5 49050505
+0 0 0 0 0 5 5 6 49050506
+0 0 0 0 0 5 5 7 49050507
+0 0 0 0 0 5 5 8 49050508
+0 0 0 0 0 5 5 9 49050509
-"Time = 0.000000
--0.450000 49040400.0000000000000
--0.150000 49040401.0000000000000
-0.150000 49040402.0000000000000
-0.450000 49040403.0000000000000
-0.750000 49040404.0000000000000
-1.050000 49040405.0000000000000
-1.350000 49040406.0000000000000
-1.650000 49040407.0000000000000
-1.950000 49040408.0000000000000
-2.250000 49040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 49050503
+1 0 0 0 0 5 5 1 49050502
+1 0 0 0 0 5 5 2 49050502
+1 0 0 0 0 5 5 3 49050503
+1 0 0 0 0 5 5 4 49050504
+1 0 0 0 0 5 5 5 49050505
+1 0 0 0 0 5 5 6 49050506
+1 0 0 0 0 5 5 7 49050507
+1 0 0 0 0 5 5 8 49050508
+1 0 0 0 0 5 5 9 49050509
+
-"Time = 1.000000
--0.450000 49040403.0000000000000
--0.150000 49040402.0000000000000
-0.150000 49040402.0000000000000
-0.450000 49040403.0000000000000
-0.750000 49040404.0000000000000
-1.050000 49040405.0000000000000
-1.350000 49040406.0000000000000
-1.650000 49040407.0000000000000
-1.950000 49040408.0000000000000
-2.250000 49040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/s.xl b/CarpetAttic/Cart3dTest/test/symmetric-z/s.xl
index 0af736304..7a04400cd 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/s.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/s.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::s x (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 1000502
+0 0 0 0 0 1 5 2 1010502
+0 0 0 0 0 2 5 2 1020502
+0 0 0 0 0 3 5 2 1030502
+0 0 0 0 0 4 5 2 1040502
+0 0 0 0 0 5 5 2 1050502
+0 0 0 0 0 6 5 2 1060502
+0 0 0 0 0 7 5 2 1070502
+0 0 0 0 0 8 5 2 1080502
+0 0 0 0 0 9 5 2 1090502
-"Time = 0.000000
--1.350000 1000401.0000000000000
--1.050000 1010401.0000000000000
--0.750000 1020401.0000000000000
--0.450000 1030401.0000000000000
--0.150000 1040401.0000000000000
-0.150000 1050401.0000000000000
-0.450000 1060401.0000000000000
-0.750000 1070401.0000000000000
-1.050000 1080401.0000000000000
-1.350000 1090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 1000502
+1 0 0 0 0 1 5 2 1010502
+1 0 0 0 0 2 5 2 1020502
+1 0 0 0 0 3 5 2 1030502
+1 0 0 0 0 4 5 2 1040502
+1 0 0 0 0 5 5 2 1050502
+1 0 0 0 0 6 5 2 1060502
+1 0 0 0 0 7 5 2 1070502
+1 0 0 0 0 8 5 2 1080502
+1 0 0 0 0 9 5 2 1090502
+
-"Time = 1.000000
--1.350000 1000402.0000000000000
--1.050000 1010402.0000000000000
--0.750000 1020402.0000000000000
--0.450000 1030402.0000000000000
--0.150000 1040402.0000000000000
-0.150000 1050402.0000000000000
-0.450000 1060402.0000000000000
-0.750000 1070402.0000000000000
-1.050000 1080402.0000000000000
-1.350000 1090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/s.yl b/CarpetAttic/Cart3dTest/test/symmetric-z/s.yl
index 8c4131fec..015f9c174 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/s.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/s.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::s y (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 1050002
+0 0 0 0 0 5 1 2 1050102
+0 0 0 0 0 5 2 2 1050202
+0 0 0 0 0 5 3 2 1050302
+0 0 0 0 0 5 4 2 1050402
+0 0 0 0 0 5 5 2 1050502
+0 0 0 0 0 5 6 2 1050602
+0 0 0 0 0 5 7 2 1050702
+0 0 0 0 0 5 8 2 1050802
+0 0 0 0 0 5 9 2 1050902
-"Time = 0.000000
--1.350000 1040001.0000000000000
--1.050000 1040101.0000000000000
--0.750000 1040201.0000000000000
--0.450000 1040301.0000000000000
--0.150000 1040401.0000000000000
-0.150000 1040501.0000000000000
-0.450000 1040601.0000000000000
-0.750000 1040701.0000000000000
-1.050000 1040801.0000000000000
-1.350000 1040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 1050002
+1 0 0 0 0 5 1 2 1050102
+1 0 0 0 0 5 2 2 1050202
+1 0 0 0 0 5 3 2 1050302
+1 0 0 0 0 5 4 2 1050402
+1 0 0 0 0 5 5 2 1050502
+1 0 0 0 0 5 6 2 1050602
+1 0 0 0 0 5 7 2 1050702
+1 0 0 0 0 5 8 2 1050802
+1 0 0 0 0 5 9 2 1050902
+
-"Time = 1.000000
--1.350000 1040002.0000000000000
--1.050000 1040102.0000000000000
--0.750000 1040202.0000000000000
--0.450000 1040302.0000000000000
--0.150000 1040402.0000000000000
-0.150000 1040502.0000000000000
-0.450000 1040602.0000000000000
-0.750000 1040702.0000000000000
-1.050000 1040802.0000000000000
-1.350000 1040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/s.zl b/CarpetAttic/Cart3dTest/test/symmetric-z/s.zl
index 4a0e0c367..023100e8a 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/s.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/s.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::s z (s)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 1050500
+0 0 0 0 0 5 5 1 1050501
+0 0 0 0 0 5 5 2 1050502
+0 0 0 0 0 5 5 3 1050503
+0 0 0 0 0 5 5 4 1050504
+0 0 0 0 0 5 5 5 1050505
+0 0 0 0 0 5 5 6 1050506
+0 0 0 0 0 5 5 7 1050507
+0 0 0 0 0 5 5 8 1050508
+0 0 0 0 0 5 5 9 1050509
-"Time = 0.000000
--0.450000 1040400.0000000000000
--0.150000 1040401.0000000000000
-0.150000 1040402.0000000000000
-0.450000 1040403.0000000000000
-0.750000 1040404.0000000000000
-1.050000 1040405.0000000000000
-1.350000 1040406.0000000000000
-1.650000 1040407.0000000000000
-1.950000 1040408.0000000000000
-2.250000 1040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 1050503
+1 0 0 0 0 5 5 1 1050502
+1 0 0 0 0 5 5 2 1050502
+1 0 0 0 0 5 5 3 1050503
+1 0 0 0 0 5 5 4 1050504
+1 0 0 0 0 5 5 5 1050505
+1 0 0 0 0 5 5 6 1050506
+1 0 0 0 0 5 5 7 1050507
+1 0 0 0 0 5 5 8 1050508
+1 0 0 0 0 5 5 9 1050509
+
-"Time = 1.000000
--0.450000 1040403.0000000000000
--0.150000 1040402.0000000000000
-0.150000 1040402.0000000000000
-0.450000 1040403.0000000000000
-0.750000 1040404.0000000000000
-1.050000 1040405.0000000000000
-1.350000 1040406.0000000000000
-1.650000 1040407.0000000000000
-1.950000 1040408.0000000000000
-2.250000 1040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/spher3d_r.xl b/CarpetAttic/Cart3dTest/test/symmetric-z/spher3d_r.xl
index 2865c92e4..ac37f85d4 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/spher3d_r.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/spher3d_r.xl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r x (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 1.36656503687164
+0 0 0 0 0 1 5 2 1.07121426428143
+0 0 0 0 0 2 5 2 0.779422863405995
+0 0 0 0 0 3 5 2 0.49749371855331
+0 0 0 0 0 4 5 2 0.259807621135332
+0 0 0 0 0 5 5 2 0.259807621135332
+0 0 0 0 0 6 5 2 0.49749371855331
+0 0 0 0 0 7 5 2 0.779422863405995
+0 0 0 0 0 8 5 2 1.07121426428143
+0 0 0 0 0 9 5 2 1.36656503687164
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 1.36656503687164
+1 0 0 0 0 1 5 2 1.07121426428143
+1 0 0 0 0 2 5 2 0.779422863405995
+1 0 0 0 0 3 5 2 0.49749371855331
+1 0 0 0 0 4 5 2 0.259807621135332
+1 0 0 0 0 5 5 2 0.259807621135332
+1 0 0 0 0 6 5 2 0.49749371855331
+1 0 0 0 0 7 5 2 0.779422863405995
+1 0 0 0 0 8 5 2 1.07121426428143
+1 0 0 0 0 9 5 2 1.36656503687164
+
-"Time = 1.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/spher3d_r.yl b/CarpetAttic/Cart3dTest/test/symmetric-z/spher3d_r.yl
index 2865c92e4..231a17018 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/spher3d_r.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/spher3d_r.yl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r y (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 1.36656503687164
+0 0 0 0 0 5 1 2 1.07121426428143
+0 0 0 0 0 5 2 2 0.779422863405995
+0 0 0 0 0 5 3 2 0.49749371855331
+0 0 0 0 0 5 4 2 0.259807621135332
+0 0 0 0 0 5 5 2 0.259807621135332
+0 0 0 0 0 5 6 2 0.49749371855331
+0 0 0 0 0 5 7 2 0.779422863405995
+0 0 0 0 0 5 8 2 1.07121426428143
+0 0 0 0 0 5 9 2 1.36656503687164
-"Time = 0.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 1.36656503687164
+1 0 0 0 0 5 1 2 1.07121426428143
+1 0 0 0 0 5 2 2 0.779422863405995
+1 0 0 0 0 5 3 2 0.49749371855331
+1 0 0 0 0 5 4 2 0.259807621135332
+1 0 0 0 0 5 5 2 0.259807621135332
+1 0 0 0 0 5 6 2 0.49749371855331
+1 0 0 0 0 5 7 2 0.779422863405995
+1 0 0 0 0 5 8 2 1.07121426428143
+1 0 0 0 0 5 9 2 1.36656503687164
+
-"Time = 1.000000
--1.350000 1.3665650368716
--1.050000 1.0712142642814
--0.750000 0.7794228634060
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/spher3d_r.zl b/CarpetAttic/Cart3dTest/test/symmetric-z/spher3d_r.zl
index 10f9f0031..400eb7b81 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/spher3d_r.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/spher3d_r.zl
@@ -1,26 +1,34 @@
+# GRID::spher3d_r z (spher3d_r)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 0.49749371855331
+0 0 0 0 0 5 5 1 0.259807621135332
+0 0 0 0 0 5 5 2 0.259807621135332
+0 0 0 0 0 5 5 3 0.49749371855331
+0 0 0 0 0 5 5 4 0.779422863405995
+0 0 0 0 0 5 5 5 1.07121426428143
+0 0 0 0 0 5 5 6 1.36656503687164
+0 0 0 0 0 5 5 7 1.66358047596141
+0 0 0 0 0 5 5 8 1.9615045245933
+0 0 0 0 0 5 5 9 2.2599778759979
-"Time = 0.000000
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 0.49749371855331
+1 0 0 0 0 5 5 1 0.259807621135332
+1 0 0 0 0 5 5 2 0.259807621135332
+1 0 0 0 0 5 5 3 0.49749371855331
+1 0 0 0 0 5 5 4 0.779422863405995
+1 0 0 0 0 5 5 5 1.07121426428143
+1 0 0 0 0 5 5 6 1.36656503687164
+1 0 0 0 0 5 5 7 1.66358047596141
+1 0 0 0 0 5 5 8 1.9615045245933
+1 0 0 0 0 5 5 9 2.2599778759979
+
-"Time = 1.000000
--0.450000 0.4974937185533
--0.150000 0.2598076211353
-0.150000 0.2598076211353
-0.450000 0.4974937185533
-0.750000 0.7794228634060
-1.050000 1.0712142642814
-1.350000 1.3665650368716
-1.650000 1.6635804759614
-1.950000 1.9615045245933
-2.250000 2.2599778759979
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/txx.xl b/CarpetAttic/Cart3dTest/test/symmetric-z/txx.xl
index cc8245109..b7e4ea8ba 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/txx.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/txx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx x (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 21000502
+0 0 0 0 0 1 5 2 21010502
+0 0 0 0 0 2 5 2 21020502
+0 0 0 0 0 3 5 2 21030502
+0 0 0 0 0 4 5 2 21040502
+0 0 0 0 0 5 5 2 21050502
+0 0 0 0 0 6 5 2 21060502
+0 0 0 0 0 7 5 2 21070502
+0 0 0 0 0 8 5 2 21080502
+0 0 0 0 0 9 5 2 21090502
-"Time = 0.000000
--1.350000 21000401.0000000000000
--1.050000 21010401.0000000000000
--0.750000 21020401.0000000000000
--0.450000 21030401.0000000000000
--0.150000 21040401.0000000000000
-0.150000 21050401.0000000000000
-0.450000 21060401.0000000000000
-0.750000 21070401.0000000000000
-1.050000 21080401.0000000000000
-1.350000 21090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 21000502
+1 0 0 0 0 1 5 2 21010502
+1 0 0 0 0 2 5 2 21020502
+1 0 0 0 0 3 5 2 21030502
+1 0 0 0 0 4 5 2 21040502
+1 0 0 0 0 5 5 2 21050502
+1 0 0 0 0 6 5 2 21060502
+1 0 0 0 0 7 5 2 21070502
+1 0 0 0 0 8 5 2 21080502
+1 0 0 0 0 9 5 2 21090502
+
-"Time = 1.000000
--1.350000 21000402.0000000000000
--1.050000 21010402.0000000000000
--0.750000 21020402.0000000000000
--0.450000 21030402.0000000000000
--0.150000 21040402.0000000000000
-0.150000 21050402.0000000000000
-0.450000 21060402.0000000000000
-0.750000 21070402.0000000000000
-1.050000 21080402.0000000000000
-1.350000 21090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/txx.yl b/CarpetAttic/Cart3dTest/test/symmetric-z/txx.yl
index 868037b63..438a399f6 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/txx.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/txx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx y (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 21050002
+0 0 0 0 0 5 1 2 21050102
+0 0 0 0 0 5 2 2 21050202
+0 0 0 0 0 5 3 2 21050302
+0 0 0 0 0 5 4 2 21050402
+0 0 0 0 0 5 5 2 21050502
+0 0 0 0 0 5 6 2 21050602
+0 0 0 0 0 5 7 2 21050702
+0 0 0 0 0 5 8 2 21050802
+0 0 0 0 0 5 9 2 21050902
-"Time = 0.000000
--1.350000 21040001.0000000000000
--1.050000 21040101.0000000000000
--0.750000 21040201.0000000000000
--0.450000 21040301.0000000000000
--0.150000 21040401.0000000000000
-0.150000 21040501.0000000000000
-0.450000 21040601.0000000000000
-0.750000 21040701.0000000000000
-1.050000 21040801.0000000000000
-1.350000 21040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 21050002
+1 0 0 0 0 5 1 2 21050102
+1 0 0 0 0 5 2 2 21050202
+1 0 0 0 0 5 3 2 21050302
+1 0 0 0 0 5 4 2 21050402
+1 0 0 0 0 5 5 2 21050502
+1 0 0 0 0 5 6 2 21050602
+1 0 0 0 0 5 7 2 21050702
+1 0 0 0 0 5 8 2 21050802
+1 0 0 0 0 5 9 2 21050902
+
-"Time = 1.000000
--1.350000 21040002.0000000000000
--1.050000 21040102.0000000000000
--0.750000 21040202.0000000000000
--0.450000 21040302.0000000000000
--0.150000 21040402.0000000000000
-0.150000 21040502.0000000000000
-0.450000 21040602.0000000000000
-0.750000 21040702.0000000000000
-1.050000 21040802.0000000000000
-1.350000 21040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/txx.zl b/CarpetAttic/Cart3dTest/test/symmetric-z/txx.zl
index 08e89a7cf..5fc1b3e07 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/txx.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/txx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::txx z (txx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 21050500
+0 0 0 0 0 5 5 1 21050501
+0 0 0 0 0 5 5 2 21050502
+0 0 0 0 0 5 5 3 21050503
+0 0 0 0 0 5 5 4 21050504
+0 0 0 0 0 5 5 5 21050505
+0 0 0 0 0 5 5 6 21050506
+0 0 0 0 0 5 5 7 21050507
+0 0 0 0 0 5 5 8 21050508
+0 0 0 0 0 5 5 9 21050509
-"Time = 0.000000
--0.450000 21040400.0000000000000
--0.150000 21040401.0000000000000
-0.150000 21040402.0000000000000
-0.450000 21040403.0000000000000
-0.750000 21040404.0000000000000
-1.050000 21040405.0000000000000
-1.350000 21040406.0000000000000
-1.650000 21040407.0000000000000
-1.950000 21040408.0000000000000
-2.250000 21040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 21050503
+1 0 0 0 0 5 5 1 21050502
+1 0 0 0 0 5 5 2 21050502
+1 0 0 0 0 5 5 3 21050503
+1 0 0 0 0 5 5 4 21050504
+1 0 0 0 0 5 5 5 21050505
+1 0 0 0 0 5 5 6 21050506
+1 0 0 0 0 5 5 7 21050507
+1 0 0 0 0 5 5 8 21050508
+1 0 0 0 0 5 5 9 21050509
+
-"Time = 1.000000
--0.450000 21040403.0000000000000
--0.150000 21040402.0000000000000
-0.150000 21040402.0000000000000
-0.450000 21040403.0000000000000
-0.750000 21040404.0000000000000
-1.050000 21040405.0000000000000
-1.350000 21040406.0000000000000
-1.650000 21040407.0000000000000
-1.950000 21040408.0000000000000
-2.250000 21040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/txy.xl b/CarpetAttic/Cart3dTest/test/symmetric-z/txy.xl
index 8e79b4514..2278b90e1 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/txy.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/txy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy x (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 22000502
+0 0 0 0 0 1 5 2 22010502
+0 0 0 0 0 2 5 2 22020502
+0 0 0 0 0 3 5 2 22030502
+0 0 0 0 0 4 5 2 22040502
+0 0 0 0 0 5 5 2 22050502
+0 0 0 0 0 6 5 2 22060502
+0 0 0 0 0 7 5 2 22070502
+0 0 0 0 0 8 5 2 22080502
+0 0 0 0 0 9 5 2 22090502
-"Time = 0.000000
--1.350000 22000401.0000000000000
--1.050000 22010401.0000000000000
--0.750000 22020401.0000000000000
--0.450000 22030401.0000000000000
--0.150000 22040401.0000000000000
-0.150000 22050401.0000000000000
-0.450000 22060401.0000000000000
-0.750000 22070401.0000000000000
-1.050000 22080401.0000000000000
-1.350000 22090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 22000502
+1 0 0 0 0 1 5 2 22010502
+1 0 0 0 0 2 5 2 22020502
+1 0 0 0 0 3 5 2 22030502
+1 0 0 0 0 4 5 2 22040502
+1 0 0 0 0 5 5 2 22050502
+1 0 0 0 0 6 5 2 22060502
+1 0 0 0 0 7 5 2 22070502
+1 0 0 0 0 8 5 2 22080502
+1 0 0 0 0 9 5 2 22090502
+
-"Time = 1.000000
--1.350000 22000402.0000000000000
--1.050000 22010402.0000000000000
--0.750000 22020402.0000000000000
--0.450000 22030402.0000000000000
--0.150000 22040402.0000000000000
-0.150000 22050402.0000000000000
-0.450000 22060402.0000000000000
-0.750000 22070402.0000000000000
-1.050000 22080402.0000000000000
-1.350000 22090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/txy.yl b/CarpetAttic/Cart3dTest/test/symmetric-z/txy.yl
index d925232b1..c13cc81d7 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/txy.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/txy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy y (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 22050002
+0 0 0 0 0 5 1 2 22050102
+0 0 0 0 0 5 2 2 22050202
+0 0 0 0 0 5 3 2 22050302
+0 0 0 0 0 5 4 2 22050402
+0 0 0 0 0 5 5 2 22050502
+0 0 0 0 0 5 6 2 22050602
+0 0 0 0 0 5 7 2 22050702
+0 0 0 0 0 5 8 2 22050802
+0 0 0 0 0 5 9 2 22050902
-"Time = 0.000000
--1.350000 22040001.0000000000000
--1.050000 22040101.0000000000000
--0.750000 22040201.0000000000000
--0.450000 22040301.0000000000000
--0.150000 22040401.0000000000000
-0.150000 22040501.0000000000000
-0.450000 22040601.0000000000000
-0.750000 22040701.0000000000000
-1.050000 22040801.0000000000000
-1.350000 22040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 22050002
+1 0 0 0 0 5 1 2 22050102
+1 0 0 0 0 5 2 2 22050202
+1 0 0 0 0 5 3 2 22050302
+1 0 0 0 0 5 4 2 22050402
+1 0 0 0 0 5 5 2 22050502
+1 0 0 0 0 5 6 2 22050602
+1 0 0 0 0 5 7 2 22050702
+1 0 0 0 0 5 8 2 22050802
+1 0 0 0 0 5 9 2 22050902
+
-"Time = 1.000000
--1.350000 22040002.0000000000000
--1.050000 22040102.0000000000000
--0.750000 22040202.0000000000000
--0.450000 22040302.0000000000000
--0.150000 22040402.0000000000000
-0.150000 22040502.0000000000000
-0.450000 22040602.0000000000000
-0.750000 22040702.0000000000000
-1.050000 22040802.0000000000000
-1.350000 22040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/txy.zl b/CarpetAttic/Cart3dTest/test/symmetric-z/txy.zl
index 5876255dc..c0dd702cb 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/txy.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/txy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::txy z (txy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 22050500
+0 0 0 0 0 5 5 1 22050501
+0 0 0 0 0 5 5 2 22050502
+0 0 0 0 0 5 5 3 22050503
+0 0 0 0 0 5 5 4 22050504
+0 0 0 0 0 5 5 5 22050505
+0 0 0 0 0 5 5 6 22050506
+0 0 0 0 0 5 5 7 22050507
+0 0 0 0 0 5 5 8 22050508
+0 0 0 0 0 5 5 9 22050509
-"Time = 0.000000
--0.450000 22040400.0000000000000
--0.150000 22040401.0000000000000
-0.150000 22040402.0000000000000
-0.450000 22040403.0000000000000
-0.750000 22040404.0000000000000
-1.050000 22040405.0000000000000
-1.350000 22040406.0000000000000
-1.650000 22040407.0000000000000
-1.950000 22040408.0000000000000
-2.250000 22040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 22050503
+1 0 0 0 0 5 5 1 22050502
+1 0 0 0 0 5 5 2 22050502
+1 0 0 0 0 5 5 3 22050503
+1 0 0 0 0 5 5 4 22050504
+1 0 0 0 0 5 5 5 22050505
+1 0 0 0 0 5 5 6 22050506
+1 0 0 0 0 5 5 7 22050507
+1 0 0 0 0 5 5 8 22050508
+1 0 0 0 0 5 5 9 22050509
+
-"Time = 1.000000
--0.450000 22040403.0000000000000
--0.150000 22040402.0000000000000
-0.150000 22040402.0000000000000
-0.450000 22040403.0000000000000
-0.750000 22040404.0000000000000
-1.050000 22040405.0000000000000
-1.350000 22040406.0000000000000
-1.650000 22040407.0000000000000
-1.950000 22040408.0000000000000
-2.250000 22040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/txz.xl b/CarpetAttic/Cart3dTest/test/symmetric-z/txz.xl
index a370e966a..f00e24469 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/txz.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/txz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz x (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 23000502
+0 0 0 0 0 1 5 2 23010502
+0 0 0 0 0 2 5 2 23020502
+0 0 0 0 0 3 5 2 23030502
+0 0 0 0 0 4 5 2 23040502
+0 0 0 0 0 5 5 2 23050502
+0 0 0 0 0 6 5 2 23060502
+0 0 0 0 0 7 5 2 23070502
+0 0 0 0 0 8 5 2 23080502
+0 0 0 0 0 9 5 2 23090502
-"Time = 0.000000
--1.350000 23000401.0000000000000
--1.050000 23010401.0000000000000
--0.750000 23020401.0000000000000
--0.450000 23030401.0000000000000
--0.150000 23040401.0000000000000
-0.150000 23050401.0000000000000
-0.450000 23060401.0000000000000
-0.750000 23070401.0000000000000
-1.050000 23080401.0000000000000
-1.350000 23090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 23000502
+1 0 0 0 0 1 5 2 23010502
+1 0 0 0 0 2 5 2 23020502
+1 0 0 0 0 3 5 2 23030502
+1 0 0 0 0 4 5 2 23040502
+1 0 0 0 0 5 5 2 23050502
+1 0 0 0 0 6 5 2 23060502
+1 0 0 0 0 7 5 2 23070502
+1 0 0 0 0 8 5 2 23080502
+1 0 0 0 0 9 5 2 23090502
+
-"Time = 1.000000
--1.350000 -23000402.0000000000000
--1.050000 -23010402.0000000000000
--0.750000 -23020402.0000000000000
--0.450000 -23030402.0000000000000
--0.150000 -23040402.0000000000000
-0.150000 -23050402.0000000000000
-0.450000 -23060402.0000000000000
-0.750000 -23070402.0000000000000
-1.050000 -23080402.0000000000000
-1.350000 -23090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/txz.yl b/CarpetAttic/Cart3dTest/test/symmetric-z/txz.yl
index 1251c0795..a3bd867b5 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/txz.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/txz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz y (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 23050002
+0 0 0 0 0 5 1 2 23050102
+0 0 0 0 0 5 2 2 23050202
+0 0 0 0 0 5 3 2 23050302
+0 0 0 0 0 5 4 2 23050402
+0 0 0 0 0 5 5 2 23050502
+0 0 0 0 0 5 6 2 23050602
+0 0 0 0 0 5 7 2 23050702
+0 0 0 0 0 5 8 2 23050802
+0 0 0 0 0 5 9 2 23050902
-"Time = 0.000000
--1.350000 23040001.0000000000000
--1.050000 23040101.0000000000000
--0.750000 23040201.0000000000000
--0.450000 23040301.0000000000000
--0.150000 23040401.0000000000000
-0.150000 23040501.0000000000000
-0.450000 23040601.0000000000000
-0.750000 23040701.0000000000000
-1.050000 23040801.0000000000000
-1.350000 23040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 23050002
+1 0 0 0 0 5 1 2 23050102
+1 0 0 0 0 5 2 2 23050202
+1 0 0 0 0 5 3 2 23050302
+1 0 0 0 0 5 4 2 23050402
+1 0 0 0 0 5 5 2 23050502
+1 0 0 0 0 5 6 2 23050602
+1 0 0 0 0 5 7 2 23050702
+1 0 0 0 0 5 8 2 23050802
+1 0 0 0 0 5 9 2 23050902
+
-"Time = 1.000000
--1.350000 -23040002.0000000000000
--1.050000 -23040102.0000000000000
--0.750000 -23040202.0000000000000
--0.450000 -23040302.0000000000000
--0.150000 -23040402.0000000000000
-0.150000 -23040502.0000000000000
-0.450000 -23040602.0000000000000
-0.750000 -23040702.0000000000000
-1.050000 -23040802.0000000000000
-1.350000 -23040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/txz.zl b/CarpetAttic/Cart3dTest/test/symmetric-z/txz.zl
index f8278e742..d6a44e761 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/txz.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/txz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::txz z (txz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 23050500
+0 0 0 0 0 5 5 1 23050501
+0 0 0 0 0 5 5 2 23050502
+0 0 0 0 0 5 5 3 23050503
+0 0 0 0 0 5 5 4 23050504
+0 0 0 0 0 5 5 5 23050505
+0 0 0 0 0 5 5 6 23050506
+0 0 0 0 0 5 5 7 23050507
+0 0 0 0 0 5 5 8 23050508
+0 0 0 0 0 5 5 9 23050509
-"Time = 0.000000
--0.450000 23040400.0000000000000
--0.150000 23040401.0000000000000
-0.150000 23040402.0000000000000
-0.450000 23040403.0000000000000
-0.750000 23040404.0000000000000
-1.050000 23040405.0000000000000
-1.350000 23040406.0000000000000
-1.650000 23040407.0000000000000
-1.950000 23040408.0000000000000
-2.250000 23040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 -23050503
+1 0 0 0 0 5 5 1 -23050502
+1 0 0 0 0 5 5 2 23050502
+1 0 0 0 0 5 5 3 23050503
+1 0 0 0 0 5 5 4 23050504
+1 0 0 0 0 5 5 5 23050505
+1 0 0 0 0 5 5 6 23050506
+1 0 0 0 0 5 5 7 23050507
+1 0 0 0 0 5 5 8 23050508
+1 0 0 0 0 5 5 9 23050509
+
-"Time = 1.000000
--0.450000 -23040403.0000000000000
--0.150000 -23040402.0000000000000
-0.150000 23040402.0000000000000
-0.450000 23040403.0000000000000
-0.750000 23040404.0000000000000
-1.050000 23040405.0000000000000
-1.350000 23040406.0000000000000
-1.650000 23040407.0000000000000
-1.950000 23040408.0000000000000
-2.250000 23040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/tyy.xl b/CarpetAttic/Cart3dTest/test/symmetric-z/tyy.xl
index e3195b2ec..e6d2a0f09 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/tyy.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/tyy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy x (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 24000502
+0 0 0 0 0 1 5 2 24010502
+0 0 0 0 0 2 5 2 24020502
+0 0 0 0 0 3 5 2 24030502
+0 0 0 0 0 4 5 2 24040502
+0 0 0 0 0 5 5 2 24050502
+0 0 0 0 0 6 5 2 24060502
+0 0 0 0 0 7 5 2 24070502
+0 0 0 0 0 8 5 2 24080502
+0 0 0 0 0 9 5 2 24090502
-"Time = 0.000000
--1.350000 24000401.0000000000000
--1.050000 24010401.0000000000000
--0.750000 24020401.0000000000000
--0.450000 24030401.0000000000000
--0.150000 24040401.0000000000000
-0.150000 24050401.0000000000000
-0.450000 24060401.0000000000000
-0.750000 24070401.0000000000000
-1.050000 24080401.0000000000000
-1.350000 24090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 24000502
+1 0 0 0 0 1 5 2 24010502
+1 0 0 0 0 2 5 2 24020502
+1 0 0 0 0 3 5 2 24030502
+1 0 0 0 0 4 5 2 24040502
+1 0 0 0 0 5 5 2 24050502
+1 0 0 0 0 6 5 2 24060502
+1 0 0 0 0 7 5 2 24070502
+1 0 0 0 0 8 5 2 24080502
+1 0 0 0 0 9 5 2 24090502
+
-"Time = 1.000000
--1.350000 24000402.0000000000000
--1.050000 24010402.0000000000000
--0.750000 24020402.0000000000000
--0.450000 24030402.0000000000000
--0.150000 24040402.0000000000000
-0.150000 24050402.0000000000000
-0.450000 24060402.0000000000000
-0.750000 24070402.0000000000000
-1.050000 24080402.0000000000000
-1.350000 24090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/tyy.yl b/CarpetAttic/Cart3dTest/test/symmetric-z/tyy.yl
index 40d82cc85..f3689adbc 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/tyy.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/tyy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy y (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 24050002
+0 0 0 0 0 5 1 2 24050102
+0 0 0 0 0 5 2 2 24050202
+0 0 0 0 0 5 3 2 24050302
+0 0 0 0 0 5 4 2 24050402
+0 0 0 0 0 5 5 2 24050502
+0 0 0 0 0 5 6 2 24050602
+0 0 0 0 0 5 7 2 24050702
+0 0 0 0 0 5 8 2 24050802
+0 0 0 0 0 5 9 2 24050902
-"Time = 0.000000
--1.350000 24040001.0000000000000
--1.050000 24040101.0000000000000
--0.750000 24040201.0000000000000
--0.450000 24040301.0000000000000
--0.150000 24040401.0000000000000
-0.150000 24040501.0000000000000
-0.450000 24040601.0000000000000
-0.750000 24040701.0000000000000
-1.050000 24040801.0000000000000
-1.350000 24040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 24050002
+1 0 0 0 0 5 1 2 24050102
+1 0 0 0 0 5 2 2 24050202
+1 0 0 0 0 5 3 2 24050302
+1 0 0 0 0 5 4 2 24050402
+1 0 0 0 0 5 5 2 24050502
+1 0 0 0 0 5 6 2 24050602
+1 0 0 0 0 5 7 2 24050702
+1 0 0 0 0 5 8 2 24050802
+1 0 0 0 0 5 9 2 24050902
+
-"Time = 1.000000
--1.350000 24040002.0000000000000
--1.050000 24040102.0000000000000
--0.750000 24040202.0000000000000
--0.450000 24040302.0000000000000
--0.150000 24040402.0000000000000
-0.150000 24040502.0000000000000
-0.450000 24040602.0000000000000
-0.750000 24040702.0000000000000
-1.050000 24040802.0000000000000
-1.350000 24040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/tyy.zl b/CarpetAttic/Cart3dTest/test/symmetric-z/tyy.zl
index 5b806834d..959fbb5a3 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/tyy.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/tyy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyy z (tyy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 24050500
+0 0 0 0 0 5 5 1 24050501
+0 0 0 0 0 5 5 2 24050502
+0 0 0 0 0 5 5 3 24050503
+0 0 0 0 0 5 5 4 24050504
+0 0 0 0 0 5 5 5 24050505
+0 0 0 0 0 5 5 6 24050506
+0 0 0 0 0 5 5 7 24050507
+0 0 0 0 0 5 5 8 24050508
+0 0 0 0 0 5 5 9 24050509
-"Time = 0.000000
--0.450000 24040400.0000000000000
--0.150000 24040401.0000000000000
-0.150000 24040402.0000000000000
-0.450000 24040403.0000000000000
-0.750000 24040404.0000000000000
-1.050000 24040405.0000000000000
-1.350000 24040406.0000000000000
-1.650000 24040407.0000000000000
-1.950000 24040408.0000000000000
-2.250000 24040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 24050503
+1 0 0 0 0 5 5 1 24050502
+1 0 0 0 0 5 5 2 24050502
+1 0 0 0 0 5 5 3 24050503
+1 0 0 0 0 5 5 4 24050504
+1 0 0 0 0 5 5 5 24050505
+1 0 0 0 0 5 5 6 24050506
+1 0 0 0 0 5 5 7 24050507
+1 0 0 0 0 5 5 8 24050508
+1 0 0 0 0 5 5 9 24050509
+
-"Time = 1.000000
--0.450000 24040403.0000000000000
--0.150000 24040402.0000000000000
-0.150000 24040402.0000000000000
-0.450000 24040403.0000000000000
-0.750000 24040404.0000000000000
-1.050000 24040405.0000000000000
-1.350000 24040406.0000000000000
-1.650000 24040407.0000000000000
-1.950000 24040408.0000000000000
-2.250000 24040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/tyz.xl b/CarpetAttic/Cart3dTest/test/symmetric-z/tyz.xl
index 06ddb5042..d6075fb0e 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/tyz.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/tyz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz x (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 25000502
+0 0 0 0 0 1 5 2 25010502
+0 0 0 0 0 2 5 2 25020502
+0 0 0 0 0 3 5 2 25030502
+0 0 0 0 0 4 5 2 25040502
+0 0 0 0 0 5 5 2 25050502
+0 0 0 0 0 6 5 2 25060502
+0 0 0 0 0 7 5 2 25070502
+0 0 0 0 0 8 5 2 25080502
+0 0 0 0 0 9 5 2 25090502
-"Time = 0.000000
--1.350000 25000401.0000000000000
--1.050000 25010401.0000000000000
--0.750000 25020401.0000000000000
--0.450000 25030401.0000000000000
--0.150000 25040401.0000000000000
-0.150000 25050401.0000000000000
-0.450000 25060401.0000000000000
-0.750000 25070401.0000000000000
-1.050000 25080401.0000000000000
-1.350000 25090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 25000502
+1 0 0 0 0 1 5 2 25010502
+1 0 0 0 0 2 5 2 25020502
+1 0 0 0 0 3 5 2 25030502
+1 0 0 0 0 4 5 2 25040502
+1 0 0 0 0 5 5 2 25050502
+1 0 0 0 0 6 5 2 25060502
+1 0 0 0 0 7 5 2 25070502
+1 0 0 0 0 8 5 2 25080502
+1 0 0 0 0 9 5 2 25090502
+
-"Time = 1.000000
--1.350000 -25000402.0000000000000
--1.050000 -25010402.0000000000000
--0.750000 -25020402.0000000000000
--0.450000 -25030402.0000000000000
--0.150000 -25040402.0000000000000
-0.150000 -25050402.0000000000000
-0.450000 -25060402.0000000000000
-0.750000 -25070402.0000000000000
-1.050000 -25080402.0000000000000
-1.350000 -25090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/tyz.yl b/CarpetAttic/Cart3dTest/test/symmetric-z/tyz.yl
index 560ff04a3..0e370ce86 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/tyz.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/tyz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz y (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 25050002
+0 0 0 0 0 5 1 2 25050102
+0 0 0 0 0 5 2 2 25050202
+0 0 0 0 0 5 3 2 25050302
+0 0 0 0 0 5 4 2 25050402
+0 0 0 0 0 5 5 2 25050502
+0 0 0 0 0 5 6 2 25050602
+0 0 0 0 0 5 7 2 25050702
+0 0 0 0 0 5 8 2 25050802
+0 0 0 0 0 5 9 2 25050902
-"Time = 0.000000
--1.350000 25040001.0000000000000
--1.050000 25040101.0000000000000
--0.750000 25040201.0000000000000
--0.450000 25040301.0000000000000
--0.150000 25040401.0000000000000
-0.150000 25040501.0000000000000
-0.450000 25040601.0000000000000
-0.750000 25040701.0000000000000
-1.050000 25040801.0000000000000
-1.350000 25040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 25050002
+1 0 0 0 0 5 1 2 25050102
+1 0 0 0 0 5 2 2 25050202
+1 0 0 0 0 5 3 2 25050302
+1 0 0 0 0 5 4 2 25050402
+1 0 0 0 0 5 5 2 25050502
+1 0 0 0 0 5 6 2 25050602
+1 0 0 0 0 5 7 2 25050702
+1 0 0 0 0 5 8 2 25050802
+1 0 0 0 0 5 9 2 25050902
+
-"Time = 1.000000
--1.350000 -25040002.0000000000000
--1.050000 -25040102.0000000000000
--0.750000 -25040202.0000000000000
--0.450000 -25040302.0000000000000
--0.150000 -25040402.0000000000000
-0.150000 -25040502.0000000000000
-0.450000 -25040602.0000000000000
-0.750000 -25040702.0000000000000
-1.050000 -25040802.0000000000000
-1.350000 -25040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/tyz.zl b/CarpetAttic/Cart3dTest/test/symmetric-z/tyz.zl
index b3a0529d0..c6b21906f 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/tyz.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/tyz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::tyz z (tyz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 25050500
+0 0 0 0 0 5 5 1 25050501
+0 0 0 0 0 5 5 2 25050502
+0 0 0 0 0 5 5 3 25050503
+0 0 0 0 0 5 5 4 25050504
+0 0 0 0 0 5 5 5 25050505
+0 0 0 0 0 5 5 6 25050506
+0 0 0 0 0 5 5 7 25050507
+0 0 0 0 0 5 5 8 25050508
+0 0 0 0 0 5 5 9 25050509
-"Time = 0.000000
--0.450000 25040400.0000000000000
--0.150000 25040401.0000000000000
-0.150000 25040402.0000000000000
-0.450000 25040403.0000000000000
-0.750000 25040404.0000000000000
-1.050000 25040405.0000000000000
-1.350000 25040406.0000000000000
-1.650000 25040407.0000000000000
-1.950000 25040408.0000000000000
-2.250000 25040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 -25050503
+1 0 0 0 0 5 5 1 -25050502
+1 0 0 0 0 5 5 2 25050502
+1 0 0 0 0 5 5 3 25050503
+1 0 0 0 0 5 5 4 25050504
+1 0 0 0 0 5 5 5 25050505
+1 0 0 0 0 5 5 6 25050506
+1 0 0 0 0 5 5 7 25050507
+1 0 0 0 0 5 5 8 25050508
+1 0 0 0 0 5 5 9 25050509
+
-"Time = 1.000000
--0.450000 -25040403.0000000000000
--0.150000 -25040402.0000000000000
-0.150000 25040402.0000000000000
-0.450000 25040403.0000000000000
-0.750000 25040404.0000000000000
-1.050000 25040405.0000000000000
-1.350000 25040406.0000000000000
-1.650000 25040407.0000000000000
-1.950000 25040408.0000000000000
-2.250000 25040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/tzz.xl b/CarpetAttic/Cart3dTest/test/symmetric-z/tzz.xl
index b6417ca35..6a6693415 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/tzz.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/tzz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz x (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 26000502
+0 0 0 0 0 1 5 2 26010502
+0 0 0 0 0 2 5 2 26020502
+0 0 0 0 0 3 5 2 26030502
+0 0 0 0 0 4 5 2 26040502
+0 0 0 0 0 5 5 2 26050502
+0 0 0 0 0 6 5 2 26060502
+0 0 0 0 0 7 5 2 26070502
+0 0 0 0 0 8 5 2 26080502
+0 0 0 0 0 9 5 2 26090502
-"Time = 0.000000
--1.350000 26000401.0000000000000
--1.050000 26010401.0000000000000
--0.750000 26020401.0000000000000
--0.450000 26030401.0000000000000
--0.150000 26040401.0000000000000
-0.150000 26050401.0000000000000
-0.450000 26060401.0000000000000
-0.750000 26070401.0000000000000
-1.050000 26080401.0000000000000
-1.350000 26090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 26000502
+1 0 0 0 0 1 5 2 26010502
+1 0 0 0 0 2 5 2 26020502
+1 0 0 0 0 3 5 2 26030502
+1 0 0 0 0 4 5 2 26040502
+1 0 0 0 0 5 5 2 26050502
+1 0 0 0 0 6 5 2 26060502
+1 0 0 0 0 7 5 2 26070502
+1 0 0 0 0 8 5 2 26080502
+1 0 0 0 0 9 5 2 26090502
+
-"Time = 1.000000
--1.350000 26000402.0000000000000
--1.050000 26010402.0000000000000
--0.750000 26020402.0000000000000
--0.450000 26030402.0000000000000
--0.150000 26040402.0000000000000
-0.150000 26050402.0000000000000
-0.450000 26060402.0000000000000
-0.750000 26070402.0000000000000
-1.050000 26080402.0000000000000
-1.350000 26090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/tzz.yl b/CarpetAttic/Cart3dTest/test/symmetric-z/tzz.yl
index c8440d3ab..284ebfe33 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/tzz.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/tzz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz y (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 26050002
+0 0 0 0 0 5 1 2 26050102
+0 0 0 0 0 5 2 2 26050202
+0 0 0 0 0 5 3 2 26050302
+0 0 0 0 0 5 4 2 26050402
+0 0 0 0 0 5 5 2 26050502
+0 0 0 0 0 5 6 2 26050602
+0 0 0 0 0 5 7 2 26050702
+0 0 0 0 0 5 8 2 26050802
+0 0 0 0 0 5 9 2 26050902
-"Time = 0.000000
--1.350000 26040001.0000000000000
--1.050000 26040101.0000000000000
--0.750000 26040201.0000000000000
--0.450000 26040301.0000000000000
--0.150000 26040401.0000000000000
-0.150000 26040501.0000000000000
-0.450000 26040601.0000000000000
-0.750000 26040701.0000000000000
-1.050000 26040801.0000000000000
-1.350000 26040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 26050002
+1 0 0 0 0 5 1 2 26050102
+1 0 0 0 0 5 2 2 26050202
+1 0 0 0 0 5 3 2 26050302
+1 0 0 0 0 5 4 2 26050402
+1 0 0 0 0 5 5 2 26050502
+1 0 0 0 0 5 6 2 26050602
+1 0 0 0 0 5 7 2 26050702
+1 0 0 0 0 5 8 2 26050802
+1 0 0 0 0 5 9 2 26050902
+
-"Time = 1.000000
--1.350000 26040002.0000000000000
--1.050000 26040102.0000000000000
--0.750000 26040202.0000000000000
--0.450000 26040302.0000000000000
--0.150000 26040402.0000000000000
-0.150000 26040502.0000000000000
-0.450000 26040602.0000000000000
-0.750000 26040702.0000000000000
-1.050000 26040802.0000000000000
-1.350000 26040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/tzz.zl b/CarpetAttic/Cart3dTest/test/symmetric-z/tzz.zl
index e7fc2afb2..d83404bd5 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/tzz.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/tzz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::tzz z (tzz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 26050500
+0 0 0 0 0 5 5 1 26050501
+0 0 0 0 0 5 5 2 26050502
+0 0 0 0 0 5 5 3 26050503
+0 0 0 0 0 5 5 4 26050504
+0 0 0 0 0 5 5 5 26050505
+0 0 0 0 0 5 5 6 26050506
+0 0 0 0 0 5 5 7 26050507
+0 0 0 0 0 5 5 8 26050508
+0 0 0 0 0 5 5 9 26050509
-"Time = 0.000000
--0.450000 26040400.0000000000000
--0.150000 26040401.0000000000000
-0.150000 26040402.0000000000000
-0.450000 26040403.0000000000000
-0.750000 26040404.0000000000000
-1.050000 26040405.0000000000000
-1.350000 26040406.0000000000000
-1.650000 26040407.0000000000000
-1.950000 26040408.0000000000000
-2.250000 26040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 26050503
+1 0 0 0 0 5 5 1 26050502
+1 0 0 0 0 5 5 2 26050502
+1 0 0 0 0 5 5 3 26050503
+1 0 0 0 0 5 5 4 26050504
+1 0 0 0 0 5 5 5 26050505
+1 0 0 0 0 5 5 6 26050506
+1 0 0 0 0 5 5 7 26050507
+1 0 0 0 0 5 5 8 26050508
+1 0 0 0 0 5 5 9 26050509
+
-"Time = 1.000000
--0.450000 26040403.0000000000000
--0.150000 26040402.0000000000000
-0.150000 26040402.0000000000000
-0.450000 26040403.0000000000000
-0.750000 26040404.0000000000000
-1.050000 26040405.0000000000000
-1.350000 26040406.0000000000000
-1.650000 26040407.0000000000000
-1.950000 26040408.0000000000000
-2.250000 26040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/vx.xl b/CarpetAttic/Cart3dTest/test/symmetric-z/vx.xl
index 23a596665..f94c0a207 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/vx.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/vx.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx x (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 11000502
+0 0 0 0 0 1 5 2 11010502
+0 0 0 0 0 2 5 2 11020502
+0 0 0 0 0 3 5 2 11030502
+0 0 0 0 0 4 5 2 11040502
+0 0 0 0 0 5 5 2 11050502
+0 0 0 0 0 6 5 2 11060502
+0 0 0 0 0 7 5 2 11070502
+0 0 0 0 0 8 5 2 11080502
+0 0 0 0 0 9 5 2 11090502
-"Time = 0.000000
--1.350000 11000401.0000000000000
--1.050000 11010401.0000000000000
--0.750000 11020401.0000000000000
--0.450000 11030401.0000000000000
--0.150000 11040401.0000000000000
-0.150000 11050401.0000000000000
-0.450000 11060401.0000000000000
-0.750000 11070401.0000000000000
-1.050000 11080401.0000000000000
-1.350000 11090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 11000502
+1 0 0 0 0 1 5 2 11010502
+1 0 0 0 0 2 5 2 11020502
+1 0 0 0 0 3 5 2 11030502
+1 0 0 0 0 4 5 2 11040502
+1 0 0 0 0 5 5 2 11050502
+1 0 0 0 0 6 5 2 11060502
+1 0 0 0 0 7 5 2 11070502
+1 0 0 0 0 8 5 2 11080502
+1 0 0 0 0 9 5 2 11090502
+
-"Time = 1.000000
--1.350000 11000402.0000000000000
--1.050000 11010402.0000000000000
--0.750000 11020402.0000000000000
--0.450000 11030402.0000000000000
--0.150000 11040402.0000000000000
-0.150000 11050402.0000000000000
-0.450000 11060402.0000000000000
-0.750000 11070402.0000000000000
-1.050000 11080402.0000000000000
-1.350000 11090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/vx.yl b/CarpetAttic/Cart3dTest/test/symmetric-z/vx.yl
index 05a452ddc..a09629e86 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/vx.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/vx.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx y (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 11050002
+0 0 0 0 0 5 1 2 11050102
+0 0 0 0 0 5 2 2 11050202
+0 0 0 0 0 5 3 2 11050302
+0 0 0 0 0 5 4 2 11050402
+0 0 0 0 0 5 5 2 11050502
+0 0 0 0 0 5 6 2 11050602
+0 0 0 0 0 5 7 2 11050702
+0 0 0 0 0 5 8 2 11050802
+0 0 0 0 0 5 9 2 11050902
-"Time = 0.000000
--1.350000 11040001.0000000000000
--1.050000 11040101.0000000000000
--0.750000 11040201.0000000000000
--0.450000 11040301.0000000000000
--0.150000 11040401.0000000000000
-0.150000 11040501.0000000000000
-0.450000 11040601.0000000000000
-0.750000 11040701.0000000000000
-1.050000 11040801.0000000000000
-1.350000 11040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 11050002
+1 0 0 0 0 5 1 2 11050102
+1 0 0 0 0 5 2 2 11050202
+1 0 0 0 0 5 3 2 11050302
+1 0 0 0 0 5 4 2 11050402
+1 0 0 0 0 5 5 2 11050502
+1 0 0 0 0 5 6 2 11050602
+1 0 0 0 0 5 7 2 11050702
+1 0 0 0 0 5 8 2 11050802
+1 0 0 0 0 5 9 2 11050902
+
-"Time = 1.000000
--1.350000 11040002.0000000000000
--1.050000 11040102.0000000000000
--0.750000 11040202.0000000000000
--0.450000 11040302.0000000000000
--0.150000 11040402.0000000000000
-0.150000 11040502.0000000000000
-0.450000 11040602.0000000000000
-0.750000 11040702.0000000000000
-1.050000 11040802.0000000000000
-1.350000 11040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/vx.zl b/CarpetAttic/Cart3dTest/test/symmetric-z/vx.zl
index da5c0305f..f9a980e5a 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/vx.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/vx.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::vx z (vx)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 11050500
+0 0 0 0 0 5 5 1 11050501
+0 0 0 0 0 5 5 2 11050502
+0 0 0 0 0 5 5 3 11050503
+0 0 0 0 0 5 5 4 11050504
+0 0 0 0 0 5 5 5 11050505
+0 0 0 0 0 5 5 6 11050506
+0 0 0 0 0 5 5 7 11050507
+0 0 0 0 0 5 5 8 11050508
+0 0 0 0 0 5 5 9 11050509
-"Time = 0.000000
--0.450000 11040400.0000000000000
--0.150000 11040401.0000000000000
-0.150000 11040402.0000000000000
-0.450000 11040403.0000000000000
-0.750000 11040404.0000000000000
-1.050000 11040405.0000000000000
-1.350000 11040406.0000000000000
-1.650000 11040407.0000000000000
-1.950000 11040408.0000000000000
-2.250000 11040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 11050503
+1 0 0 0 0 5 5 1 11050502
+1 0 0 0 0 5 5 2 11050502
+1 0 0 0 0 5 5 3 11050503
+1 0 0 0 0 5 5 4 11050504
+1 0 0 0 0 5 5 5 11050505
+1 0 0 0 0 5 5 6 11050506
+1 0 0 0 0 5 5 7 11050507
+1 0 0 0 0 5 5 8 11050508
+1 0 0 0 0 5 5 9 11050509
+
-"Time = 1.000000
--0.450000 11040403.0000000000000
--0.150000 11040402.0000000000000
-0.150000 11040402.0000000000000
-0.450000 11040403.0000000000000
-0.750000 11040404.0000000000000
-1.050000 11040405.0000000000000
-1.350000 11040406.0000000000000
-1.650000 11040407.0000000000000
-1.950000 11040408.0000000000000
-2.250000 11040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/vy.xl b/CarpetAttic/Cart3dTest/test/symmetric-z/vy.xl
index ddce85716..2a77d06ac 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/vy.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/vy.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy x (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 12000502
+0 0 0 0 0 1 5 2 12010502
+0 0 0 0 0 2 5 2 12020502
+0 0 0 0 0 3 5 2 12030502
+0 0 0 0 0 4 5 2 12040502
+0 0 0 0 0 5 5 2 12050502
+0 0 0 0 0 6 5 2 12060502
+0 0 0 0 0 7 5 2 12070502
+0 0 0 0 0 8 5 2 12080502
+0 0 0 0 0 9 5 2 12090502
-"Time = 0.000000
--1.350000 12000401.0000000000000
--1.050000 12010401.0000000000000
--0.750000 12020401.0000000000000
--0.450000 12030401.0000000000000
--0.150000 12040401.0000000000000
-0.150000 12050401.0000000000000
-0.450000 12060401.0000000000000
-0.750000 12070401.0000000000000
-1.050000 12080401.0000000000000
-1.350000 12090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 12000502
+1 0 0 0 0 1 5 2 12010502
+1 0 0 0 0 2 5 2 12020502
+1 0 0 0 0 3 5 2 12030502
+1 0 0 0 0 4 5 2 12040502
+1 0 0 0 0 5 5 2 12050502
+1 0 0 0 0 6 5 2 12060502
+1 0 0 0 0 7 5 2 12070502
+1 0 0 0 0 8 5 2 12080502
+1 0 0 0 0 9 5 2 12090502
+
-"Time = 1.000000
--1.350000 12000402.0000000000000
--1.050000 12010402.0000000000000
--0.750000 12020402.0000000000000
--0.450000 12030402.0000000000000
--0.150000 12040402.0000000000000
-0.150000 12050402.0000000000000
-0.450000 12060402.0000000000000
-0.750000 12070402.0000000000000
-1.050000 12080402.0000000000000
-1.350000 12090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/vy.yl b/CarpetAttic/Cart3dTest/test/symmetric-z/vy.yl
index 51740ede1..c270e8b15 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/vy.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/vy.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy y (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 12050002
+0 0 0 0 0 5 1 2 12050102
+0 0 0 0 0 5 2 2 12050202
+0 0 0 0 0 5 3 2 12050302
+0 0 0 0 0 5 4 2 12050402
+0 0 0 0 0 5 5 2 12050502
+0 0 0 0 0 5 6 2 12050602
+0 0 0 0 0 5 7 2 12050702
+0 0 0 0 0 5 8 2 12050802
+0 0 0 0 0 5 9 2 12050902
-"Time = 0.000000
--1.350000 12040001.0000000000000
--1.050000 12040101.0000000000000
--0.750000 12040201.0000000000000
--0.450000 12040301.0000000000000
--0.150000 12040401.0000000000000
-0.150000 12040501.0000000000000
-0.450000 12040601.0000000000000
-0.750000 12040701.0000000000000
-1.050000 12040801.0000000000000
-1.350000 12040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 12050002
+1 0 0 0 0 5 1 2 12050102
+1 0 0 0 0 5 2 2 12050202
+1 0 0 0 0 5 3 2 12050302
+1 0 0 0 0 5 4 2 12050402
+1 0 0 0 0 5 5 2 12050502
+1 0 0 0 0 5 6 2 12050602
+1 0 0 0 0 5 7 2 12050702
+1 0 0 0 0 5 8 2 12050802
+1 0 0 0 0 5 9 2 12050902
+
-"Time = 1.000000
--1.350000 12040002.0000000000000
--1.050000 12040102.0000000000000
--0.750000 12040202.0000000000000
--0.450000 12040302.0000000000000
--0.150000 12040402.0000000000000
-0.150000 12040502.0000000000000
-0.450000 12040602.0000000000000
-0.750000 12040702.0000000000000
-1.050000 12040802.0000000000000
-1.350000 12040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/vy.zl b/CarpetAttic/Cart3dTest/test/symmetric-z/vy.zl
index 36c2d5840..5b2cfc59b 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/vy.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/vy.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::vy z (vy)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 12050500
+0 0 0 0 0 5 5 1 12050501
+0 0 0 0 0 5 5 2 12050502
+0 0 0 0 0 5 5 3 12050503
+0 0 0 0 0 5 5 4 12050504
+0 0 0 0 0 5 5 5 12050505
+0 0 0 0 0 5 5 6 12050506
+0 0 0 0 0 5 5 7 12050507
+0 0 0 0 0 5 5 8 12050508
+0 0 0 0 0 5 5 9 12050509
-"Time = 0.000000
--0.450000 12040400.0000000000000
--0.150000 12040401.0000000000000
-0.150000 12040402.0000000000000
-0.450000 12040403.0000000000000
-0.750000 12040404.0000000000000
-1.050000 12040405.0000000000000
-1.350000 12040406.0000000000000
-1.650000 12040407.0000000000000
-1.950000 12040408.0000000000000
-2.250000 12040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 12050503
+1 0 0 0 0 5 5 1 12050502
+1 0 0 0 0 5 5 2 12050502
+1 0 0 0 0 5 5 3 12050503
+1 0 0 0 0 5 5 4 12050504
+1 0 0 0 0 5 5 5 12050505
+1 0 0 0 0 5 5 6 12050506
+1 0 0 0 0 5 5 7 12050507
+1 0 0 0 0 5 5 8 12050508
+1 0 0 0 0 5 5 9 12050509
+
-"Time = 1.000000
--0.450000 12040403.0000000000000
--0.150000 12040402.0000000000000
-0.150000 12040402.0000000000000
-0.450000 12040403.0000000000000
-0.750000 12040404.0000000000000
-1.050000 12040405.0000000000000
-1.350000 12040406.0000000000000
-1.650000 12040407.0000000000000
-1.950000 12040408.0000000000000
-2.250000 12040409.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/vz.xl b/CarpetAttic/Cart3dTest/test/symmetric-z/vz.xl
index 85eef0349..76d749a6a 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/vz.xl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/vz.xl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz x (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 0 5 2 13000502
+0 0 0 0 0 1 5 2 13010502
+0 0 0 0 0 2 5 2 13020502
+0 0 0 0 0 3 5 2 13030502
+0 0 0 0 0 4 5 2 13040502
+0 0 0 0 0 5 5 2 13050502
+0 0 0 0 0 6 5 2 13060502
+0 0 0 0 0 7 5 2 13070502
+0 0 0 0 0 8 5 2 13080502
+0 0 0 0 0 9 5 2 13090502
-"Time = 0.000000
--1.350000 13000401.0000000000000
--1.050000 13010401.0000000000000
--0.750000 13020401.0000000000000
--0.450000 13030401.0000000000000
--0.150000 13040401.0000000000000
-0.150000 13050401.0000000000000
-0.450000 13060401.0000000000000
-0.750000 13070401.0000000000000
-1.050000 13080401.0000000000000
-1.350000 13090401.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 0 5 2 13000502
+1 0 0 0 0 1 5 2 13010502
+1 0 0 0 0 2 5 2 13020502
+1 0 0 0 0 3 5 2 13030502
+1 0 0 0 0 4 5 2 13040502
+1 0 0 0 0 5 5 2 13050502
+1 0 0 0 0 6 5 2 13060502
+1 0 0 0 0 7 5 2 13070502
+1 0 0 0 0 8 5 2 13080502
+1 0 0 0 0 9 5 2 13090502
+
-"Time = 1.000000
--1.350000 -13000402.0000000000000
--1.050000 -13010402.0000000000000
--0.750000 -13020402.0000000000000
--0.450000 -13030402.0000000000000
--0.150000 -13040402.0000000000000
-0.150000 -13050402.0000000000000
-0.450000 -13060402.0000000000000
-0.750000 -13070402.0000000000000
-1.050000 -13080402.0000000000000
-1.350000 -13090402.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/vz.yl b/CarpetAttic/Cart3dTest/test/symmetric-z/vz.yl
index 2e1d3dccd..85d7292d6 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/vz.yl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/vz.yl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz y (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 0 2 13050002
+0 0 0 0 0 5 1 2 13050102
+0 0 0 0 0 5 2 2 13050202
+0 0 0 0 0 5 3 2 13050302
+0 0 0 0 0 5 4 2 13050402
+0 0 0 0 0 5 5 2 13050502
+0 0 0 0 0 5 6 2 13050602
+0 0 0 0 0 5 7 2 13050702
+0 0 0 0 0 5 8 2 13050802
+0 0 0 0 0 5 9 2 13050902
-"Time = 0.000000
--1.350000 13040001.0000000000000
--1.050000 13040101.0000000000000
--0.750000 13040201.0000000000000
--0.450000 13040301.0000000000000
--0.150000 13040401.0000000000000
-0.150000 13040501.0000000000000
-0.450000 13040601.0000000000000
-0.750000 13040701.0000000000000
-1.050000 13040801.0000000000000
-1.350000 13040901.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 0 2 13050002
+1 0 0 0 0 5 1 2 13050102
+1 0 0 0 0 5 2 2 13050202
+1 0 0 0 0 5 3 2 13050302
+1 0 0 0 0 5 4 2 13050402
+1 0 0 0 0 5 5 2 13050502
+1 0 0 0 0 5 6 2 13050602
+1 0 0 0 0 5 7 2 13050702
+1 0 0 0 0 5 8 2 13050802
+1 0 0 0 0 5 9 2 13050902
+
-"Time = 1.000000
--1.350000 -13040002.0000000000000
--1.050000 -13040102.0000000000000
--0.750000 -13040202.0000000000000
--0.450000 -13040302.0000000000000
--0.150000 -13040402.0000000000000
-0.150000 -13040502.0000000000000
-0.450000 -13040602.0000000000000
-0.750000 -13040702.0000000000000
-1.050000 -13040802.0000000000000
-1.350000 -13040902.0000000000000
diff --git a/CarpetAttic/Cart3dTest/test/symmetric-z/vz.zl b/CarpetAttic/Cart3dTest/test/symmetric-z/vz.zl
index 7b9b2e07c..2431ae181 100644
--- a/CarpetAttic/Cart3dTest/test/symmetric-z/vz.zl
+++ b/CarpetAttic/Cart3dTest/test/symmetric-z/vz.zl
@@ -1,26 +1,34 @@
+# CART3DTEST::vz z (vz)
+#
+# iteration 0
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+0 0 0 0 0 5 5 0 13050500
+0 0 0 0 0 5 5 1 13050501
+0 0 0 0 0 5 5 2 13050502
+0 0 0 0 0 5 5 3 13050503
+0 0 0 0 0 5 5 4 13050504
+0 0 0 0 0 5 5 5 13050505
+0 0 0 0 0 5 5 6 13050506
+0 0 0 0 0 5 5 7 13050507
+0 0 0 0 0 5 5 8 13050508
+0 0 0 0 0 5 5 9 13050509
-"Time = 0.000000
--0.450000 13040400.0000000000000
--0.150000 13040401.0000000000000
-0.150000 13040402.0000000000000
-0.450000 13040403.0000000000000
-0.750000 13040404.0000000000000
-1.050000 13040405.0000000000000
-1.350000 13040406.0000000000000
-1.650000 13040407.0000000000000
-1.950000 13040408.0000000000000
-2.250000 13040409.0000000000000
+
+# iteration 1
+# time level 0 refinement level 0 component 0 multigrid level 0
+# column format: it tl rl c ml x y z data
+1 0 0 0 0 5 5 0 -13050503
+1 0 0 0 0 5 5 1 -13050502
+1 0 0 0 0 5 5 2 13050502
+1 0 0 0 0 5 5 3 13050503
+1 0 0 0 0 5 5 4 13050504
+1 0 0 0 0 5 5 5 13050505
+1 0 0 0 0 5 5 6 13050506
+1 0 0 0 0 5 5 7 13050507
+1 0 0 0 0 5 5 8 13050508
+1 0 0 0 0 5 5 9 13050509
+
-"Time = 1.000000
--0.450000 -13040403.0000000000000
--0.150000 -13040402.0000000000000
-0.150000 13040402.0000000000000
-0.450000 13040403.0000000000000
-0.750000 13040404.0000000000000
-1.050000 13040405.0000000000000
-1.350000 13040406.0000000000000
-1.650000 13040407.0000000000000
-1.950000 13040408.0000000000000
-2.250000 13040409.0000000000000