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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/test/periodic
parentf18c55697b69b77eac655793885a08880e4d9c86 (diff)
Removed old test suite.
darcs-hash:20010307141926-f6438-adefef063f4466bd08b372627c5dd12aea8bd428.gz
Diffstat (limited to 'CarpetAttic/Cart3dTest/test/periodic')
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/ax.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/ax.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/ax.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/ay.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/ay.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/ay.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/az.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/az.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/az.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/cart3d_x.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/cart3d_x.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/cart3d_x.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/cart3d_y.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/cart3d_y.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/cart3d_y.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/cart3d_z.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/cart3d_z.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/cart3d_z.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/fxx.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/fxx.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/fxx.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/fxy.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/fxy.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/fxy.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/fxz.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/fxz.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/fxz.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/fyx.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/fyx.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/fyx.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/fyy.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/fyy.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/fyy.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/fyz.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/fyz.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/fyz.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/fzx.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/fzx.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/fzx.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/fzy.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/fzy.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/fzy.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/fzz.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/fzz.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/fzz.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/s.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/s.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/s.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/spher3d_r.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/spher3d_r.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/spher3d_r.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/txx.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/txx.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/txx.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/txy.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/txy.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/txy.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/txz.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/txz.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/txz.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/tyy.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/tyy.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/tyy.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/tyz.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/tyz.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/tyz.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/tzz.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/tzz.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/tzz.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/vx.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/vx.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/vx.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/vy.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/vy.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/vy.zl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/vz.xl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/vz.yl52
-rw-r--r--CarpetAttic/Cart3dTest/test/periodic/vz.zl52
78 files changed, 2340 insertions, 1716 deletions
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