file/parameter string replacement from whisky to GRHydro

git-svn-id: http://svn.einsteintoolkit.org/cactus/EinsteinEvolve/GRHydro/trunk@112 c83d129a-5a75-4d5a-9c4d-ed3a5855bf45

181 files changed, 19476 insertions, 0 deletions

diff --git a/test/GRHydro_test_tov_ppm/alp_maximum.xg b/test/GRHydro_test_tov_ppm/alp_maximum.xg
new file mode 100644
index 0000000..27bf461
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/alp_maximum.xg
@@ -0,0 +1,9 @@
+"alp v time
+0.0000000000000	0.9475253127427
+0.3515742187500	0.9475256961030
+0.7031484375000	0.9475256123426
+1.0547226562500	0.9475254131323
+1.4062968750000	0.9475251370772
+1.7578710937500	0.9475247572317
+2.1094453125000	0.9475242617336
+2.4610195312500	0.9475236545232
diff --git a/test/GRHydro_test_tov_ppm/alp_minimum.xg b/test/GRHydro_test_tov_ppm/alp_minimum.xg
new file mode 100644
index 0000000..c6442fe
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/alp_minimum.xg
@@ -0,0 +1,9 @@
+"alp v time
+0.0000000000000	0.6698612280496
+0.3515742187500	0.6698436727904
+0.7031484375000	0.6697950081396
+1.0547226562500	0.6697215513869
+1.4062968750000	0.6696289456035
+1.7578710937500	0.6695217461425
+2.1094453125000	0.6694036119101
+2.4610195312500	0.6692777352852
diff --git a/test/GRHydro_test_tov_ppm/alp_norm1.xg b/test/GRHydro_test_tov_ppm/alp_norm1.xg
new file mode 100644
index 0000000..8ab1537
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/alp_norm1.xg
@@ -0,0 +1,9 @@
+"alp v time
+0.0000000000000	0.9005424762216
+0.3515742187500	0.9005428231861
+0.7031484375000	0.9005431546180
+1.0547226562500	0.9005436711675
+1.4062968750000	0.9005444148084
+1.7578710937500	0.9005453854360
+2.1094453125000	0.9005465802983
+2.4610195312500	0.9005480037760
diff --git a/test/GRHydro_test_tov_ppm/alp_norm2.xg b/test/GRHydro_test_tov_ppm/alp_norm2.xg
new file mode 100644
index 0000000..4280123
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/alp_norm2.xg
@@ -0,0 +1,9 @@
+"alp v time
+0.0000000000000	0.9013715518013
+0.3515742187500	0.9013719057678
+0.7031484375000	0.9013722439889
+1.0547226562500	0.9013727710011
+1.4062968750000	0.9013735294415
+1.7578710937500	0.9013745190697
+2.1094453125000	0.9013757369540
+2.4610195312500	0.9013771874199
diff --git a/test/GRHydro_test_tov_ppm/dens_3D_diagonal.xg b/test/GRHydro_test_tov_ppm/dens_3D_diagonal.xg
new file mode 100644
index 0000000..00b657a
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/dens_3D_diagonal.xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-2.5980762114e+01		1.1729671931e-07
+-2.4356910355e+01		1.1853326151e-07
+-2.2733058596e+01		1.1995974220e-07
+-2.1109206837e+01		1.2162343869e-07
+-1.9485355079e+01		1.2358868881e-07
+-1.7861503320e+01		1.2594532286e-07
+-1.6237651561e+01		1.2882262551e-07
+-1.4613799803e+01		1.3241355929e-07
+-1.2989948044e+01		1.3701922811e-07
+-1.1366096285e+01		1.4313636440e-07
+-9.7422445267e+00		1.5164529020e-07
+-8.1183927680e+00		1.1862914062e-06
+-6.4945410093e+00		3.9297011325e-04
+-4.8706892506e+00		1.0678557184e-03
+-3.2468374920e+00		2.0777649045e-03
+-1.6229857333e+00		3.1848145041e-03
+8.6602540378e-04		3.7072030825e-03
+1.6247177841e+00		3.1838014950e-03
+3.2485695428e+00		2.0765504344e-03
+4.8724213015e+00		1.0669525769e-03
+6.4962730601e+00		3.9242016285e-04
+8.1201248188e+00		8.8223034108e-07
+9.7439765775e+00		1.5163444738e-07
+1.1367828336e+01		1.4312877246e-07
+1.2991680095e+01		1.3701362326e-07
+1.4615531854e+01		1.3240925515e-07
+1.6239383612e+01		1.2881921812e-07
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+2.1110938888e+01		1.2162151682e-07
+2.2734790647e+01		1.1995810398e-07
+2.4358642406e+01		1.1853184859e-07
+2.5982494164e+01		1.1729548829e-07
+
+
+"Time = 3.5157421875e-01
+-2.5980762114e+01		1.1729671931e-07
+-2.4356910355e+01		1.1853326151e-07
+-2.2733058596e+01		1.1995974220e-07
+-2.1109206837e+01		1.2162343438e-07
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+-8.1183927680e+00		1.9631332494e-06
+-6.4945410093e+00		3.9296432659e-04
+-4.8706892506e+00		1.0678524388e-03
+-3.2468374920e+00		2.0777875591e-03
+-1.6229857333e+00		3.1872924146e-03
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+3.2485695428e+00		2.0765733258e-03
+4.8724213015e+00		1.0669493130e-03
+6.4962730601e+00		3.9241436975e-04
+8.1201248188e+00		1.6644685188e-06
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+1.4615531854e+01		1.3240927079e-07
+1.6239383612e+01		1.2881922409e-07
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+2.4358642406e+01		1.1853184859e-07
+2.5982494164e+01		1.1729548829e-07
+
+
+"Time = 7.0314843750e-01
+-2.5980762114e+01		1.1729671931e-07
+-2.4356910355e+01		1.1853326151e-07
+-2.2733058596e+01		1.1995974220e-07
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+-9.7422445267e+00		1.5164594950e-07
+-8.1183927680e+00		2.7142619926e-06
+-6.4945410093e+00		3.9294663569e-04
+-4.8706892506e+00		1.0678446022e-03
+-3.2468374920e+00		2.0778481832e-03
+-1.6229857333e+00		3.1896586463e-03
+8.6602540378e-04		3.6955220619e-03
+1.6247177841e+00		3.1886634427e-03
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+1.2991680095e+01		1.3701376039e-07
+1.4615531854e+01		1.3240931758e-07
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+2.4358642406e+01		1.1853184859e-07
+2.5982494164e+01		1.1729548829e-07
+
+
+"Time = 1.0547226562e+00
+-2.5980762114e+01		1.1729671931e-07
+-2.4356910355e+01		1.1853326151e-07
+-2.2733058596e+01		1.1995974220e-07
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+-1.9485355079e+01		1.2358866679e-07
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+-1.2989948044e+01		1.3701953624e-07
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+-8.1183927680e+00		3.4386487452e-06
+-6.4945410093e+00		3.9291641148e-04
+-4.8706892506e+00		1.0678362274e-03
+-3.2468374920e+00		2.0779325329e-03
+-1.6229857333e+00		3.1918910142e-03
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+3.2485695428e+00		2.0767200536e-03
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+2.4358642406e+01		1.1853184859e-07
+2.5982494164e+01		1.1729548829e-07
+
+
+"Time = 1.4062968750e+00
+-2.5980762114e+01		1.1729671931e-07
+-2.4356910355e+01		1.1853326151e-07
+-2.2733058596e+01		1.1995974220e-07
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+-1.6229857333e+00		3.1940010404e-03
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+1.6247177841e+00		3.1930169697e-03
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+9.7439765775e+00		1.5163718002e-07
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+2.4358642406e+01		1.1853184859e-07
+2.5982494164e+01		1.1729548829e-07
+
+
+"Time = 1.7578710937e+00
+-2.5980762114e+01		1.1729671931e-07
+-2.4356910355e+01		1.1853326151e-07
+-2.2733058596e+01		1.1995974220e-07
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+-1.7861503320e+01		1.2594533835e-07
+-1.6237651561e+01		1.2882277328e-07
+-1.4613799803e+01		1.3241394679e-07
+-1.2989948044e+01		1.3702007847e-07
+-1.1366096285e+01		1.4313818239e-07
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+-8.1183927680e+00		4.7768499450e-06
+-6.4945410093e+00		3.9281287528e-04
+-4.8706892506e+00		1.0678435538e-03
+-3.2468374920e+00		2.0781074836e-03
+-1.6229857333e+00		3.1960132808e-03
+8.6602540378e-04		3.6779382538e-03
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+3.2485695428e+00		2.0768990036e-03
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+2.4358642406e+01		1.1853184859e-07
+2.5982494164e+01		1.1729548829e-07
+
+
+"Time = 2.1094453125e+00
+-2.5980762114e+01		1.1729671931e-07
+-2.4356910355e+01		1.1853326151e-07
+-2.2733058596e+01		1.1995974220e-07
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+-1.9485355079e+01		1.2362776984e-07
+-1.7861503320e+01		1.2596867461e-07
+-1.6237651561e+01		1.2882283732e-07
+-1.4613799803e+01		1.3241411506e-07
+-1.2989948044e+01		1.3702044713e-07
+-1.1366096285e+01		1.4313897161e-07
+-9.7422445267e+00		1.5165186201e-07
+-8.1183927680e+00		5.3887487013e-06
+-6.4945410093e+00		3.9273282679e-04
+-4.8706892506e+00		1.0678832712e-03
+-3.2468374920e+00		2.0781702871e-03
+-1.6229857333e+00		3.1977795135e-03
+8.6602540378e-04		3.6722892104e-03
+1.6247177841e+00		3.1968126188e-03
+3.2485695428e+00		2.0769617513e-03
+4.8724213015e+00		1.0669801451e-03
+6.4962730601e+00		3.9218355678e-04
+8.1201248188e+00		5.1398466877e-06
+9.7439765775e+00		1.5164101122e-07
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+2.4358642406e+01		1.1853184859e-07
+2.5982494164e+01		1.1729548829e-07
+
+
+"Time = 2.4610195312e+00
+-2.5980762114e+01		1.1729671931e-07
+-2.4356910355e+01		1.1853326151e-07
+-2.2733058596e+01		1.1995974220e-07
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+-1.9485355079e+01		1.2358857328e-07
+-1.7861503320e+01		1.2599179781e-07
+-1.6237651561e+01		1.2885085782e-07
+-1.4613799803e+01		1.3241431213e-07
+-1.2989948044e+01		1.3702087841e-07
+-1.1366096285e+01		1.4313991616e-07
+-9.7422445267e+00		1.5165408645e-07
+-8.1183927680e+00		5.9739503918e-06
+-6.4945410093e+00		3.9263441631e-04
+-4.8706892506e+00		1.0679383350e-03
+-3.2468374920e+00		2.0782591743e-03
+-1.6229857333e+00		3.1992076036e-03
+8.6602540378e-04		3.6671481867e-03
+1.6247177841e+00		3.1982373735e-03
+3.2485695428e+00		2.0770526295e-03
+4.8724213015e+00		1.0670350058e-03
+6.4962730601e+00		3.9208547581e-04
+8.1201248188e+00		5.7292347247e-06
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+1.4615531854e+01		1.3241000732e-07
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+1.7863235371e+01		1.2598902554e-07
+1.9487087130e+01		1.2358628730e-07
+2.1110938888e+01		1.2162132799e-07
+2.2734790647e+01		1.1995810398e-07
+2.4358642406e+01		1.1853184859e-07
+2.5982494164e+01		1.1729548829e-07
diff --git a/test/GRHydro_test_tov_ppm/dens_maximum.xg b/test/GRHydro_test_tov_ppm/dens_maximum.xg
new file mode 100644
index 0000000..f246657
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/dens_maximum.xg
@@ -0,0 +1,9 @@
+"dens v time
+0.0000000000000	0.0037072030825
+0.3515742187500	0.0037014083871
+0.7031484375000	0.0036955220619
+1.0547226562500	0.0036896333796
+1.4062968750000	0.0036837832048
+1.7578710937500	0.0036779382538
+2.1094453125000	0.0036722892104
+2.4610195312500	0.0036671481867
diff --git a/test/GRHydro_test_tov_ppm/dens_minimum.xg b/test/GRHydro_test_tov_ppm/dens_minimum.xg
new file mode 100644
index 0000000..24fabfe
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/dens_minimum.xg
@@ -0,0 +1,9 @@
+"dens v time
+0.0000000000000	0.0000001172955
+0.3515742187500	0.0000001172955
+0.7031484375000	0.0000001172955
+1.0547226562500	0.0000001172955
+1.4062968750000	0.0000001172955
+1.7578710937500	0.0000001172955
+2.1094453125000	0.0000001172955
+2.4610195312500	0.0000001172955
diff --git a/test/GRHydro_test_tov_ppm/dens_norm1.xg b/test/GRHydro_test_tov_ppm/dens_norm1.xg
new file mode 100644
index 0000000..716428a
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/dens_norm1.xg
@@ -0,0 +1,9 @@
+"dens v time
+0.0000000000000	0.0000509785489
+0.3515742187500	0.0000509785504
+0.7031484375000	0.0000509785542
+1.0547226562500	0.0000509785607
+1.4062968750000	0.0000509785701
+1.7578710937500	0.0000509785821
+2.1094453125000	0.0000509785971
+2.4610195312500	0.0000509786151
diff --git a/test/GRHydro_test_tov_ppm/dens_norm2.xg b/test/GRHydro_test_tov_ppm/dens_norm2.xg
new file mode 100644
index 0000000..42772d2
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/dens_norm2.xg
@@ -0,0 +1,9 @@
+"dens v time
+0.0000000000000	0.0002699839971
+0.3515742187500	0.0002699764665
+0.7031484375000	0.0002699666134
+1.0547226562500	0.0002699544960
+1.4062968750000	0.0002699401612
+1.7578710937500	0.0002699236956
+2.1094453125000	0.0002699053188
+2.4610195312500	0.0002698850520
diff --git a/test/GRHydro_test_tov_ppm/dens_x_[16][16].xg b/test/GRHydro_test_tov_ppm/dens_x_[16][16].xg
new file mode 100644
index 0000000..1a1fb5c
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/dens_x_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-1.5000000000e+01		1.3148118667e-07
+-1.4062468750e+01		1.3384391219e-07
+-1.3124937500e+01		1.3658740323e-07
+-1.2187406250e+01		1.3981106180e-07
+-1.1249875000e+01		1.4365191094e-07
+-1.0312343750e+01		1.4830410281e-07
+-9.3748125000e+00		1.5405186023e-07
+-8.4372812500e+00		1.6132793503e-07
+-7.4997500000e+00		1.2386636971e-04
+-6.5622187500e+00		3.7172156546e-04
+-5.6246875000e+00		7.1289093645e-04
+-4.6871562500e+00		1.1658601330e-03
+-3.7496250000e+00		1.7343421185e-03
+-2.8120937500e+00		2.3861905287e-03
+-1.8745625000e+00		3.0311062063e-03
+-9.3703125000e-01		3.5218078087e-03
+5.0000000000e-04		3.7072030825e-03
+9.3803125000e-01		3.5214246401e-03
+1.8755625000e+00		3.0304710121e-03
+2.8130937500e+00		2.3854770107e-03
+3.7506250000e+00		1.7336810988e-03
+4.6881562500e+00		1.1653138020e-03
+5.6256875000e+00		7.1247004943e-04
+6.5632187500e+00		3.7141126902e-04
+7.5007500000e+00		1.2364422229e-04
+8.4382812500e+00		1.6131914635e-07
+9.3758125000e+00		1.5404500995e-07
+1.0313343750e+01		1.4829861798e-07
+1.1250875000e+01		1.4364742294e-07
+1.2188406250e+01		1.3980732310e-07
+1.3125937500e+01		1.3658424161e-07
+1.4063468750e+01		1.3384120424e-07
+1.5001000000e+01		1.3147884171e-07
+
+
+"Time = 3.5157421875e-01
+-1.5000000000e+01		1.3148118667e-07
+-1.4062468750e+01		1.3384391219e-07
+-1.3124937500e+01		1.3658740323e-07
+-1.2187406250e+01		1.3981096893e-07
+-1.1249875000e+01		1.4365177820e-07
+-1.0312343750e+01		1.4830390535e-07
+-9.3748125000e+00		1.5438862456e-07
+-8.4372812500e+00		4.2356061089e-07
+-7.4997500000e+00		1.2347224793e-04
+-6.5622187500e+00		3.7140395145e-04
+-5.6246875000e+00		7.1228617467e-04
+-4.6871562500e+00		1.1648487263e-03
+-3.7496250000e+00		1.7327619467e-03
+-2.8120937500e+00		2.3838980929e-03
+-1.8745625000e+00		3.0280818712e-03
+-9.3703125000e-01		3.5191050085e-03
+5.0000000000e-04		3.7014083871e-03
+9.3803125000e-01		3.5187259785e-03
+1.8755625000e+00		3.0274475681e-03
+2.8130937500e+00		2.3831853914e-03
+3.7506250000e+00		1.7321016171e-03
+4.6881562500e+00		1.1643029144e-03
+5.6256875000e+00		7.1186564341e-04
+6.5632187500e+00		3.7109392141e-04
+7.5007500000e+00		1.2325126780e-04
+8.4382812500e+00		4.2253251187e-07
+9.3758125000e+00		1.5438018379e-07
+1.0313343750e+01		1.4829842061e-07
+1.1250875000e+01		1.4364729026e-07
+1.2188406250e+01		1.3980723027e-07
+1.3125937500e+01		1.3658424161e-07
+1.4063468750e+01		1.3384120424e-07
+1.5001000000e+01		1.3147884171e-07
+
+
+"Time = 7.0314843750e-01
+-1.5000000000e+01		1.3148118667e-07
+-1.4062468750e+01		1.3384391219e-07
+-1.3124937500e+01		1.3658740323e-07
+-1.2187406250e+01		1.3981069086e-07
+-1.1249875000e+01		1.4369322866e-07
+-1.0312343750e+01		1.4830331668e-07
+-9.3748125000e+00		1.5511312904e-07
+-8.4372812500e+00		6.8293680364e-07
+-7.4997500000e+00		1.2309088720e-04
+-6.5622187500e+00		3.7110057809e-04
+-5.6246875000e+00		7.1167687137e-04
+-4.6871562500e+00		1.1638331927e-03
+-3.7496250000e+00		1.7311619217e-03
+-2.8120937500e+00		2.3815626880e-03
+-1.8745625000e+00		3.0250260497e-03
+-9.3703125000e-01		3.5162927119e-03
+5.0000000000e-04		3.6955220619e-03
+9.3803125000e-01		3.5159176144e-03
+1.8755625000e+00		3.0243928991e-03
+2.8130937500e+00		2.3808508586e-03
+3.7506250000e+00		1.7305023008e-03
+4.6881562500e+00		1.1632879102e-03
+5.6256875000e+00		7.1125669137e-04
+6.5632187500e+00		3.7079086428e-04
+7.5007500000e+00		1.2287102345e-04
+8.4382812500e+00		6.8089473179e-07
+9.3758125000e+00		1.5510130403e-07
+1.0313343750e+01		1.4829783220e-07
+1.1250875000e+01		1.4368873304e-07
+1.2188406250e+01		1.3980695230e-07
+1.3125937500e+01		1.3658424161e-07
+1.4063468750e+01		1.3384120424e-07
+1.5001000000e+01		1.3147884171e-07
+
+
+"Time = 1.0547226562e+00
+-1.5000000000e+01		1.3148118667e-07
+-1.4062468750e+01		1.3384391219e-07
+-1.3124937500e+01		1.3658740323e-07
+-1.2187406250e+01		1.3981023077e-07
+-1.1249875000e+01		1.4372317540e-07
+-1.0312343750e+01		1.4830236388e-07
+-9.3748125000e+00		1.5611016596e-07
+-8.4372812500e+00		9.3943141008e-07
+-7.4997500000e+00		1.2272263780e-04
+-6.5622187500e+00		3.7081308273e-04
+-5.6246875000e+00		7.1106744172e-04
+-4.6871562500e+00		1.1628233583e-03
+-3.7496250000e+00		1.7295599833e-03
+-2.8120937500e+00		2.3792195953e-03
+-1.8745625000e+00		3.0219739665e-03
+-9.3703125000e-01		3.5134163554e-03
+5.0000000000e-04		3.6896333796e-03
+9.3803125000e-01		3.5130449536e-03
+1.8755625000e+00		3.0213421781e-03
+2.8130937500e+00		2.3785087027e-03
+3.7506250000e+00		1.7289010773e-03
+4.6881562500e+00		1.1622786079e-03
+5.6256875000e+00		7.1064760681e-04
+6.5632187500e+00		3.7050372964e-04
+7.5007500000e+00		1.2250383901e-04
+8.4382812500e+00		9.3638102345e-07
+9.3758125000e+00		1.5609378295e-07
+1.0313343750e+01		1.4829687970e-07
+1.1250875000e+01		1.4371867234e-07
+1.2188406250e+01		1.3980649237e-07
+1.3125937500e+01		1.3658424161e-07
+1.4063468750e+01		1.3384120424e-07
+1.5001000000e+01		1.3147884171e-07
+
+
+"Time = 1.4062968750e+00
+-1.5000000000e+01		1.3148118667e-07
+-1.4062468750e+01		1.3384391219e-07
+-1.3124937500e+01		1.3658740323e-07
+-1.2187406250e+01		1.3980959938e-07
+-1.1249875000e+01		1.4377286393e-07
+-1.0312343750e+01		1.4830111120e-07
+-9.3748125000e+00		1.5733936381e-07
+-8.4372812500e+00		1.1928303067e-06
+-7.4997500000e+00		1.2236800382e-04
+-6.5622187500e+00		3.7054066279e-04
+-5.6246875000e+00		7.1045170653e-04
+-4.6871562500e+00		1.1618069731e-03
+-3.7496250000e+00		1.7279403146e-03
+-2.8120937500e+00		2.3768623747e-03
+-1.8745625000e+00		3.0189203733e-03
+-9.3703125000e-01		3.5104958461e-03
+5.0000000000e-04		3.6837832048e-03
+9.3803125000e-01		3.5101261709e-03
+1.8755625000e+00		3.0182902266e-03
+2.8130937500e+00		2.3761523785e-03
+3.7506250000e+00		1.7272821381e-03
+4.6881562500e+00		1.1612627629e-03
+5.6256875000e+00		7.1003221935e-04
+6.5632187500e+00		3.7023171625e-04
+7.5007500000e+00		1.2215021791e-04
+8.4382812500e+00		1.1887786396e-06
+9.3758125000e+00		1.5731709402e-07
+1.0313343750e+01		1.4829562711e-07
+1.1250875000e+01		1.4376834852e-07
+1.2188406250e+01		1.3980586121e-07
+1.3125937500e+01		1.3658424161e-07
+1.4063468750e+01		1.3384120424e-07
+1.5001000000e+01		1.3147884171e-07
+
+
+"Time = 1.7578710937e+00
+-1.5000000000e+01		1.3148118667e-07
+-1.4062468750e+01		1.3384391219e-07
+-1.3124937500e+01		1.3658740323e-07
+-1.2187406250e+01		1.3980881780e-07
+-1.1249875000e+01		1.4384250863e-07
+-1.0312343750e+01		1.4829964716e-07
+-9.3748125000e+00		1.5876780813e-07
+-8.4372812500e+00		1.4429096452e-06
+-7.4997500000e+00		1.2202749302e-04
+-6.5622187500e+00		3.7028148479e-04
+-5.6246875000e+00		7.0983230126e-04
+-4.6871562500e+00		1.1607928344e-03
+-3.7496250000e+00		1.7263134786e-03
+-2.8120937500e+00		2.3745104933e-03
+-1.8745625000e+00		3.0158562394e-03
+-9.3703125000e-01		3.5075291748e-03
+5.0000000000e-04		3.6779382538e-03
+9.3803125000e-01		3.5071612021e-03
+1.8755625000e+00		3.0152281066e-03
+2.8130937500e+00		2.3738012236e-03
+3.7506250000e+00		1.7256561040e-03
+4.6881562500e+00		1.1602491664e-03
+5.6256875000e+00		7.0941315953e-04
+6.5632187500e+00		3.6997298354e-04
+7.5007500000e+00		1.2181066828e-04
+8.4382812500e+00		1.4378647819e-06
+9.3758125000e+00		1.5873839992e-07
+1.0313343750e+01		1.4829416267e-07
+1.1250875000e+01		1.4383797601e-07
+1.2188406250e+01		1.3980507991e-07
+1.3125937500e+01		1.3658424161e-07
+1.4063468750e+01		1.3384120424e-07
+1.5001000000e+01		1.3147884171e-07
+
+
+"Time = 2.1094453125e+00
+-1.5000000000e+01		1.3148118667e-07
+-1.4062468750e+01		1.3384391219e-07
+-1.3124937500e+01		1.3658740323e-07
+-1.2187406250e+01		1.3980791698e-07
+-1.1249875000e+01		1.4393117630e-07
+-1.0312343750e+01		1.4829806566e-07
+-9.3748125000e+00		1.6036667287e-07
+-8.4372812500e+00		1.6894524501e-06
+-7.4997500000e+00		1.2170017982e-04
+-6.5622187500e+00		3.7003898493e-04
+-5.6246875000e+00		7.0921515690e-04
+-4.6871562500e+00		1.1597932030e-03
+-3.7496250000e+00		1.7246982627e-03
+-2.8120937500e+00		2.3722629011e-03
+-1.8745625000e+00		3.0128957903e-03
+-9.3703125000e-01		3.5046489984e-03
+5.0000000000e-04		3.6722892104e-03
+9.3803125000e-01		3.5042871012e-03
+1.8755625000e+00		3.0122691690e-03
+2.8130937500e+00		2.3715538131e-03
+3.7506250000e+00		1.7240418717e-03
+4.6881562500e+00		1.1592500787e-03
+5.6256875000e+00		7.0879635539e-04
+6.5632187500e+00		3.6973107633e-04
+7.5007500000e+00		1.2148426599e-04
+8.4382812500e+00		1.6834234179e-06
+9.3758125000e+00		1.6032894738e-07
+1.0313343750e+01		1.4829258027e-07
+1.1250875000e+01		1.4392662179e-07
+1.2188406250e+01		1.3980417937e-07
+1.3125937500e+01		1.3658424161e-07
+1.4063468750e+01		1.3384120424e-07
+1.5001000000e+01		1.3147884171e-07
+
+
+"Time = 2.4610195312e+00
+-1.5000000000e+01		1.3148118667e-07
+-1.4062468750e+01		1.3384391219e-07
+-1.3124937500e+01		1.3658740323e-07
+-1.2187406250e+01		1.3980693449e-07
+-1.1249875000e+01		1.4403932116e-07
+-1.0312343750e+01		1.4829646893e-07
+-9.3748125000e+00		1.6213828584e-07
+-8.4372812500e+00		1.9322185891e-06
+-7.4997500000e+00		1.2138659067e-04
+-6.5622187500e+00		3.6982677735e-04
+-5.6246875000e+00		7.0860621346e-04
+-4.6871562500e+00		1.1588571263e-03
+-3.7496250000e+00		1.7232129409e-03
+-2.8120937500e+00		2.3702158820e-03
+-1.8745625000e+00		3.0101898683e-03
+-9.3703125000e-01		3.5019255721e-03
+5.0000000000e-04		3.6671481867e-03
+9.3803125000e-01		3.5015628241e-03
+1.8755625000e+00		3.0095649555e-03
+2.8130937500e+00		2.3695073485e-03
+3.7506250000e+00		1.7225572021e-03
+4.6881562500e+00		1.1583144577e-03
+5.6256875000e+00		7.0818774796e-04
+6.5632187500e+00		3.6951956790e-04
+7.5007500000e+00		1.2117153486e-04
+8.4382812500e+00		1.9252140021e-06
+9.3758125000e+00		1.6209231845e-07
+1.0313343750e+01		1.4829098253e-07
+1.1250875000e+01		1.4403474007e-07
+1.2188406250e+01		1.3980319713e-07
+1.3125937500e+01		1.3658424161e-07
+1.4063468750e+01		1.3384120424e-07
+1.5001000000e+01		1.3147884171e-07
diff --git a/test/GRHydro_test_tov_ppm/dens_y_[16][16].xg b/test/GRHydro_test_tov_ppm/dens_y_[16][16].xg
new file mode 100644
index 0000000..1a1fb5c
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/dens_y_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-1.5000000000e+01		1.3148118667e-07
+-1.4062468750e+01		1.3384391219e-07
+-1.3124937500e+01		1.3658740323e-07
+-1.2187406250e+01		1.3981106180e-07
+-1.1249875000e+01		1.4365191094e-07
+-1.0312343750e+01		1.4830410281e-07
+-9.3748125000e+00		1.5405186023e-07
+-8.4372812500e+00		1.6132793503e-07
+-7.4997500000e+00		1.2386636971e-04
+-6.5622187500e+00		3.7172156546e-04
+-5.6246875000e+00		7.1289093645e-04
+-4.6871562500e+00		1.1658601330e-03
+-3.7496250000e+00		1.7343421185e-03
+-2.8120937500e+00		2.3861905287e-03
+-1.8745625000e+00		3.0311062063e-03
+-9.3703125000e-01		3.5218078087e-03
+5.0000000000e-04		3.7072030825e-03
+9.3803125000e-01		3.5214246401e-03
+1.8755625000e+00		3.0304710121e-03
+2.8130937500e+00		2.3854770107e-03
+3.7506250000e+00		1.7336810988e-03
+4.6881562500e+00		1.1653138020e-03
+5.6256875000e+00		7.1247004943e-04
+6.5632187500e+00		3.7141126902e-04
+7.5007500000e+00		1.2364422229e-04
+8.4382812500e+00		1.6131914635e-07
+9.3758125000e+00		1.5404500995e-07
+1.0313343750e+01		1.4829861798e-07
+1.1250875000e+01		1.4364742294e-07
+1.2188406250e+01		1.3980732310e-07
+1.3125937500e+01		1.3658424161e-07
+1.4063468750e+01		1.3384120424e-07
+1.5001000000e+01		1.3147884171e-07
+
+
+"Time = 3.5157421875e-01
+-1.5000000000e+01		1.3148118667e-07
+-1.4062468750e+01		1.3384391219e-07
+-1.3124937500e+01		1.3658740323e-07
+-1.2187406250e+01		1.3981096893e-07
+-1.1249875000e+01		1.4365177820e-07
+-1.0312343750e+01		1.4830390535e-07
+-9.3748125000e+00		1.5438862456e-07
+-8.4372812500e+00		4.2356061089e-07
+-7.4997500000e+00		1.2347224793e-04
+-6.5622187500e+00		3.7140395145e-04
+-5.6246875000e+00		7.1228617467e-04
+-4.6871562500e+00		1.1648487263e-03
+-3.7496250000e+00		1.7327619467e-03
+-2.8120937500e+00		2.3838980929e-03
+-1.8745625000e+00		3.0280818712e-03
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+1.4063468750e+01		1.3384120424e-07
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+
+
+"Time = 7.0314843750e-01
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+
+
+"Time = 1.0547226562e+00
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+
+
+"Time = 1.4062968750e+00
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+
+
+"Time = 1.7578710937e+00
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+
+
+"Time = 2.1094453125e+00
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+
+
+"Time = 2.4610195312e+00
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diff --git a/test/GRHydro_test_tov_ppm/dens_z_[16][16].xg b/test/GRHydro_test_tov_ppm/dens_z_[16][16].xg
new file mode 100644
index 0000000..1a1fb5c
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/dens_z_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
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+
+
+"Time = 3.5157421875e-01
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+
+
+"Time = 7.0314843750e-01
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+
+
+"Time = 1.0547226562e+00
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+5.6256875000e+00		7.1064760681e-04
+6.5632187500e+00		3.7050372964e-04
+7.5007500000e+00		1.2250383901e-04
+8.4382812500e+00		9.3638102345e-07
+9.3758125000e+00		1.5609378295e-07
+1.0313343750e+01		1.4829687970e-07
+1.1250875000e+01		1.4371867234e-07
+1.2188406250e+01		1.3980649237e-07
+1.3125937500e+01		1.3658424161e-07
+1.4063468750e+01		1.3384120424e-07
+1.5001000000e+01		1.3147884171e-07
+
+
+"Time = 1.4062968750e+00
+-1.5000000000e+01		1.3148118667e-07
+-1.4062468750e+01		1.3384391219e-07
+-1.3124937500e+01		1.3658740323e-07
+-1.2187406250e+01		1.3980959938e-07
+-1.1249875000e+01		1.4377286393e-07
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+-9.3748125000e+00		1.5733936381e-07
+-8.4372812500e+00		1.1928303067e-06
+-7.4997500000e+00		1.2236800382e-04
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+-1.8745625000e+00		3.0189203733e-03
+-9.3703125000e-01		3.5104958461e-03
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+9.3803125000e-01		3.5101261709e-03
+1.8755625000e+00		3.0182902266e-03
+2.8130937500e+00		2.3761523785e-03
+3.7506250000e+00		1.7272821381e-03
+4.6881562500e+00		1.1612627629e-03
+5.6256875000e+00		7.1003221935e-04
+6.5632187500e+00		3.7023171625e-04
+7.5007500000e+00		1.2215021791e-04
+8.4382812500e+00		1.1887786396e-06
+9.3758125000e+00		1.5731709402e-07
+1.0313343750e+01		1.4829562711e-07
+1.1250875000e+01		1.4376834852e-07
+1.2188406250e+01		1.3980586121e-07
+1.3125937500e+01		1.3658424161e-07
+1.4063468750e+01		1.3384120424e-07
+1.5001000000e+01		1.3147884171e-07
+
+
+"Time = 1.7578710937e+00
+-1.5000000000e+01		1.3148118667e-07
+-1.4062468750e+01		1.3384391219e-07
+-1.3124937500e+01		1.3658740323e-07
+-1.2187406250e+01		1.3980881780e-07
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+-9.3703125000e-01		3.5075291748e-03
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+1.8755625000e+00		3.0152281066e-03
+2.8130937500e+00		2.3738012236e-03
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+5.6256875000e+00		7.0941315953e-04
+6.5632187500e+00		3.6997298354e-04
+7.5007500000e+00		1.2181066828e-04
+8.4382812500e+00		1.4378647819e-06
+9.3758125000e+00		1.5873839992e-07
+1.0313343750e+01		1.4829416267e-07
+1.1250875000e+01		1.4383797601e-07
+1.2188406250e+01		1.3980507991e-07
+1.3125937500e+01		1.3658424161e-07
+1.4063468750e+01		1.3384120424e-07
+1.5001000000e+01		1.3147884171e-07
+
+
+"Time = 2.1094453125e+00
+-1.5000000000e+01		1.3148118667e-07
+-1.4062468750e+01		1.3384391219e-07
+-1.3124937500e+01		1.3658740323e-07
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+-9.3748125000e+00		1.6036667287e-07
+-8.4372812500e+00		1.6894524501e-06
+-7.4997500000e+00		1.2170017982e-04
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+5.6256875000e+00		7.0879635539e-04
+6.5632187500e+00		3.6973107633e-04
+7.5007500000e+00		1.2148426599e-04
+8.4382812500e+00		1.6834234179e-06
+9.3758125000e+00		1.6032894738e-07
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+1.1250875000e+01		1.4392662179e-07
+1.2188406250e+01		1.3980417937e-07
+1.3125937500e+01		1.3658424161e-07
+1.4063468750e+01		1.3384120424e-07
+1.5001000000e+01		1.3147884171e-07
+
+
+"Time = 2.4610195312e+00
+-1.5000000000e+01		1.3148118667e-07
+-1.4062468750e+01		1.3384391219e-07
+-1.3124937500e+01		1.3658740323e-07
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+-9.3748125000e+00		1.6213828584e-07
+-8.4372812500e+00		1.9322185891e-06
+-7.4997500000e+00		1.2138659067e-04
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+-3.7496250000e+00		1.7232129409e-03
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+-9.3703125000e-01		3.5019255721e-03
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+6.5632187500e+00		3.6951956790e-04
+7.5007500000e+00		1.2117153486e-04
+8.4382812500e+00		1.9252140021e-06
+9.3758125000e+00		1.6209231845e-07
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+1.3125937500e+01		1.3658424161e-07
+1.4063468750e+01		1.3384120424e-07
+1.5001000000e+01		1.3147884171e-07
diff --git a/test/GRHydro_test_tov_ppm/eps_3D_diagonal.xg b/test/GRHydro_test_tov_ppm/eps_3D_diagonal.xg
new file mode 100644
index 0000000..1b6c0f9
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/eps_3D_diagonal.xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-2.5980762114e+01		1.0000000000e-05
+-2.4356910355e+01		1.0000000000e-05
+-2.2733058596e+01		1.0000000000e-05
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+2.4358642406e+01		1.0000000000e-05
+2.5982494164e+01		1.0000000000e-05
+
+
+"Time = 3.5157421875e-01
+-2.5980762114e+01		1.0000011295e-05
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+
+
+"Time = 7.0314843750e-01
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+
+
+"Time = 1.0547226562e+00
+-2.5980762114e+01		1.0000015195e-05
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+2.4358642406e+01		1.0000002836e-05
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+
+
+"Time = 1.4062968750e+00
+-2.5980762114e+01		1.0000016569e-05
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+2.4358642406e+01		1.0000004945e-05
+2.5982494164e+01		1.0000016567e-05
+
+
+"Time = 1.7578710937e+00
+-2.5980762114e+01		1.0000018466e-05
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+2.4358642406e+01		1.0000007606e-05
+2.5982494164e+01		1.0000018465e-05
+
+
+"Time = 2.1094453125e+00
+-2.5980762114e+01		1.0000020942e-05
+-2.4356910355e+01		1.0000010769e-05
+-2.2733058596e+01		1.0000013107e-05
+-2.1109206837e+01		1.0000000000e-05
+-1.9485355079e+01		1.0003143958e-05
+-1.7861503320e+01		1.0001843676e-05
+-1.6237651561e+01		1.0000000000e-05
+-1.4613799803e+01		1.0000000000e-05
+-1.2989948044e+01		1.0000000000e-05
+-1.1366096285e+01		1.0000000000e-05
+-9.7422445267e+00		1.0000000000e-05
+-8.1183927680e+00		3.2802952559e-04
+-6.4945410093e+00		2.1359689511e-02
+-4.8706892506e+00		5.0456602633e-02
+-3.2468374920e+00		8.4673904926e-02
+-1.6229857333e+00		1.1569679078e-01
+8.6602540378e-04		1.2682352636e-01
+1.6247177841e+00		1.1567281588e-01
+3.2485695428e+00		8.4637377910e-02
+4.8724213015e+00		5.0421953505e-02
+6.4962730601e+00		2.1332748125e-02
+8.1201248188e+00		3.1290909745e-04
+9.7439765775e+00		1.0000000000e-05
+1.1367828336e+01		1.0000000000e-05
+1.2991680095e+01		1.0000000000e-05
+1.4615531854e+01		1.0000000000e-05
+1.6239383612e+01		1.0000000000e-05
+1.7863235371e+01		1.0001843378e-05
+1.9487087130e+01		1.0003143487e-05
+2.1110938888e+01		1.0000000000e-05
+2.2734790647e+01		1.0000013111e-05
+2.4358642406e+01		1.0000010773e-05
+2.5982494164e+01		1.0000020942e-05
+
+
+"Time = 2.4610195312e+00
+-2.5980762114e+01		1.0000023976e-05
+-2.4356910355e+01		1.0000014387e-05
+-2.2733058596e+01		1.0000016916e-05
+-2.1109206837e+01		1.0000000000e-05
+-1.9485355079e+01		1.0000000000e-05
+-1.7861503320e+01		1.0003652875e-05
+-1.6237651561e+01		1.0002156962e-05
+-1.4613799803e+01		1.0000000000e-05
+-1.2989948044e+01		1.0000000000e-05
+-1.1366096285e+01		1.0000000000e-05
+-9.7422445267e+00		1.0000000000e-05
+-8.1183927680e+00		3.6364704586e-04
+-6.4945410093e+00		2.1353964227e-02
+-4.8706892506e+00		5.0459367774e-02
+-3.2468374920e+00		8.4680335082e-02
+-1.6229857333e+00		1.1575625864e-01
+8.6602540378e-04		1.2665395081e-01
+1.6247177841e+00		1.1573216682e-01
+3.2485695428e+00		8.4643887131e-02
+4.8724213015e+00		5.0424708348e-02
+6.4962730601e+00		2.1327040338e-02
+8.1201248188e+00		3.4878579557e-04
+9.7439765775e+00		1.0000000000e-05
+1.1367828336e+01		1.0000000000e-05
+1.2991680095e+01		1.0000000000e-05
+1.4615531854e+01		1.0000000000e-05
+1.6239383612e+01		1.0002156587e-05
+1.7863235371e+01		1.0003652290e-05
+1.9487087130e+01		1.0000000000e-05
+2.1110938888e+01		1.0000000000e-05
+2.2734790647e+01		1.0000016922e-05
+2.4358642406e+01		1.0000014393e-05
+2.5982494164e+01		1.0000023978e-05
diff --git a/test/GRHydro_test_tov_ppm/eps_maximum.xg b/test/GRHydro_test_tov_ppm/eps_maximum.xg
new file mode 100644
index 0000000..cb77c27
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/eps_maximum.xg
@@ -0,0 +1,9 @@
+"eps v time
+0.0000000000000	0.1279999958351
+0.3515742187500	0.1278010419894
+0.7031484375000	0.1276009056282
+1.0547226562500	0.1274022573393
+1.4062968750000	0.1272061419210
+1.7578710937500	0.1270111152343
+2.1094453125000	0.1268235263578
+2.4610195312500	0.1266539508090
diff --git a/test/GRHydro_test_tov_ppm/eps_minimum.xg b/test/GRHydro_test_tov_ppm/eps_minimum.xg
new file mode 100644
index 0000000..4b1b36c
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/eps_minimum.xg
@@ -0,0 +1,9 @@
+"eps v time
+0.0000000000000	0.0000100000000
+0.3515742187500	0.0000100000000
+0.7031484375000	0.0000100000000
+1.0547226562500	0.0000100000000
+1.4062968750000	0.0000100000000
+1.7578710937500	0.0000100000000
+2.1094453125000	0.0000100000000
+2.4610195312500	0.0000100000000
diff --git a/test/GRHydro_test_tov_ppm/eps_norm1.xg b/test/GRHydro_test_tov_ppm/eps_norm1.xg
new file mode 100644
index 0000000..6942fb9
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/eps_norm1.xg
@@ -0,0 +1,9 @@
+"eps v time
+0.0000000000000	0.0023465361261
+0.3515742187500	0.0023465648870
+0.7031484375000	0.0023466047097
+1.0547226562500	0.0023466551419
+1.4062968750000	0.0023467155644
+1.7578710937500	0.0023467852072
+2.1094453125000	0.0023468630218
+2.4610195312500	0.0023469481616
diff --git a/test/GRHydro_test_tov_ppm/eps_norm2.xg b/test/GRHydro_test_tov_ppm/eps_norm2.xg
new file mode 100644
index 0000000..3c23eee
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/eps_norm2.xg
@@ -0,0 +1,9 @@
+"eps v time
+0.0000000000000	0.0114469034947
+0.3515742187500	0.0114465805757
+0.7031484375000	0.0114462445648
+1.0547226562500	0.0114458925391
+1.4062968750000	0.0114455201749
+1.7578710937500	0.0114451222310
+2.1094453125000	0.0114446950701
+2.4610195312500	0.0114442296941
diff --git a/test/GRHydro_test_tov_ppm/eps_x_[16][16].xg b/test/GRHydro_test_tov_ppm/eps_x_[16][16].xg
new file mode 100644
index 0000000..3e8e193
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/eps_x_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-1.5000000000e+01		1.0000000000e-05
+-1.4062468750e+01		1.0000000000e-05
+-1.3124937500e+01		1.0000000000e-05
+-1.2187406250e+01		1.0000000000e-05
+-1.1249875000e+01		1.0000000000e-05
+-1.0312343750e+01		1.0000000000e-05
+-9.3748125000e+00		1.0000000000e-05
+-8.4372812500e+00		1.0000000000e-05
+-7.4997500000e+00		7.2529424086e-03
+-6.5622187500e+00		2.0326313159e-02
+-5.6246875000e+00		3.6049890672e-02
+-4.6871562500e+00		5.4161822971e-02
+-3.7496250000e+00		7.3893919065e-02
+-2.8120937500e+00		9.3724408138e-02
+-1.8745625000e+00		1.1126260974e-01
+-9.3703125000e-01		1.2355413765e-01
+5.0000000000e-04		1.2799999584e-01
+9.3803125000e-01		1.2354484331e-01
+1.8755625000e+00		1.1124616148e-01
+2.8130937500e+00		9.3703980883e-02
+3.7506250000e+00		7.3872471271e-02
+4.6881562500e+00		5.4141445771e-02
+5.6256875000e+00		3.6031764555e-02
+6.5632187500e+00		2.0310942344e-02
+7.5007500000e+00		7.2404201366e-03
+8.4382812500e+00		1.0000000000e-05
+9.3758125000e+00		1.0000000000e-05
+1.0313343750e+01		1.0000000000e-05
+1.1250875000e+01		1.0000000000e-05
+1.2188406250e+01		1.0000000000e-05
+1.3125937500e+01		1.0000000000e-05
+1.4063468750e+01		1.0000000000e-05
+1.5001000000e+01		1.0000000000e-05
+
+
+"Time = 3.5157421875e-01
+-1.5000000000e+01		1.0000256396e-05
+-1.4062468750e+01		1.0000001092e-05
+-1.3124937500e+01		1.0000004934e-05
+-1.2187406250e+01		1.0000000000e-05
+-1.1249875000e+01		1.0000000000e-05
+-1.0312343750e+01		1.0000000000e-05
+-9.3748125000e+00		1.0021792804e-05
+-8.4372812500e+00		2.6251193928e-05
+-7.4997500000e+00		7.2298671672e-03
+-6.5622187500e+00		2.0308959762e-02
+-5.6246875000e+00		3.6019340229e-02
+-4.6871562500e+00		5.4114907409e-02
+-3.7496250000e+00		7.3826761295e-02
+-2.8120937500e+00		9.3634734507e-02
+-1.8745625000e+00		1.1115227820e-01
+-9.3703125000e-01		1.2346033836e-01
+5.0000000000e-04		1.2780104199e-01
+9.3803125000e-01		1.2345118579e-01
+1.8755625000e+00		1.1113585542e-01
+2.8130937500e+00		9.3614331742e-02
+3.7506250000e+00		7.3805336636e-02
+4.6881562500e+00		5.4094549924e-02
+5.6256875000e+00		3.6001229398e-02
+6.5632187500e+00		2.0293602136e-02
+7.5007500000e+00		7.2174116789e-03
+8.4382812500e+00		2.6188925831e-05
+9.3758125000e+00		1.0021690535e-05
+1.0313343750e+01		1.0000000000e-05
+1.1250875000e+01		1.0000000000e-05
+1.2188406250e+01		1.0000000000e-05
+1.3125937500e+01		1.0000004932e-05
+1.4063468750e+01		1.0000001092e-05
+1.5001000000e+01		1.0000256326e-05
+
+
+"Time = 7.0314843750e-01
+-1.5000000000e+01		1.0000332677e-05
+-1.4062468750e+01		1.0000002686e-05
+-1.3124937500e+01		1.0000019164e-05
+-1.2187406250e+01		1.0000000000e-05
+-1.1249875000e+01		1.0002865919e-05
+-1.0312343750e+01		1.0000000000e-05
+-9.3748125000e+00		1.0068620225e-05
+-8.4372812500e+00		4.2325323650e-05
+-7.4997500000e+00		7.2075415034e-03
+-6.5622187500e+00		2.0292408513e-02
+-5.6246875000e+00		3.5988614434e-02
+-4.6871562500e+00		5.4067924002e-02
+-3.7496250000e+00		7.3759056206e-02
+-2.8120937500e+00		9.3544037853e-02
+-1.8745625000e+00		1.1104203256e-01
+-9.3703125000e-01		1.2336458225e-01
+5.0000000000e-04		1.2760090563e-01
+9.3803125000e-01		1.2335556376e-01
+1.8755625000e+00		1.1102564413e-01
+2.8130937500e+00		9.3523661114e-02
+3.7506250000e+00		7.3737655121e-02
+4.6881562500e+00		5.4047586572e-02
+5.6256875000e+00		3.5970518596e-02
+6.5632187500e+00		2.0277066829e-02
+7.5007500000e+00		7.1951498513e-03
+8.4382812500e+00		4.2201109737e-05
+9.3758125000e+00		1.0068300361e-05
+1.0313343750e+01		1.0000000000e-05
+1.1250875000e+01		1.0002865480e-05
+1.2188406250e+01		1.0000000000e-05
+1.3125937500e+01		1.0000019158e-05
+1.4063468750e+01		1.0000002685e-05
+1.5001000000e+01		1.0000332587e-05
+
+
+"Time = 1.0547226562e+00
+-1.5000000000e+01		1.0000351140e-05
+-1.4062468750e+01		1.0000004554e-05
+-1.3124937500e+01		1.0000040609e-05
+-1.2187406250e+01		1.0000000000e-05
+-1.1249875000e+01		1.0004855213e-05
+-1.0312343750e+01		1.0000000000e-05
+-9.3748125000e+00		1.0133002317e-05
+-8.4372812500e+00		5.8222403345e-05
+-7.4997500000e+00		7.1859839946e-03
+-6.5622187500e+00		2.0276739853e-02
+-5.6246875000e+00		3.5957923858e-02
+-4.6871562500e+00		5.4021304679e-02
+-3.7496250000e+00		7.3691516621e-02
+-2.8120937500e+00		9.3453597074e-02
+-1.8745625000e+00		1.1093297669e-01
+-9.3703125000e-01		1.2326819384e-01
+5.0000000000e-04		1.2740225734e-01
+9.3803125000e-01		1.2325930096e-01
+1.8755625000e+00		1.1091662980e-01
+2.8130937500e+00		9.3433248448e-02
+3.7506250000e+00		7.3670139135e-02
+4.6881562500e+00		5.4000987355e-02
+5.6256875000e+00		3.5939842662e-02
+6.5632187500e+00		2.0261416577e-02
+7.5007500000e+00		7.1736532368e-03
+8.4382812500e+00		5.8036575692e-05
+9.3758125000e+00		1.0132389457e-05
+1.0313343750e+01		1.0000000000e-05
+1.1250875000e+01		1.0004854348e-05
+1.2188406250e+01		1.0000000000e-05
+1.3125937500e+01		1.0000040596e-05
+1.4063468750e+01		1.0000004552e-05
+1.5001000000e+01		1.0000351044e-05
+
+
+"Time = 1.4062968750e+00
+-1.5000000000e+01		1.0000349500e-05
+-1.4062468750e+01		1.0000008460e-05
+-1.3124937500e+01		1.0000067160e-05
+-1.2187406250e+01		1.0000000000e-05
+-1.1249875000e+01		1.0008142943e-05
+-1.0312343750e+01		1.0000000000e-05
+-9.3748125000e+00		1.0212317134e-05
+-8.4372812500e+00		7.3929208501e-05
+-7.4997500000e+00		7.1652247459e-03
+-6.5622187500e+00		2.0261898628e-02
+-5.6246875000e+00		3.5926945355e-02
+-4.6871562500e+00		5.3974466345e-02
+-3.7496250000e+00		7.3623437215e-02
+-2.8120937500e+00		9.3363078754e-02
+-1.8745625000e+00		1.1082475201e-01
+-9.3703125000e-01		1.2317157206e-01
+5.0000000000e-04		1.2720614192e-01
+9.3803125000e-01		1.2316273570e-01
+1.8755625000e+00		1.1080845661e-01
+2.8130937500e+00		9.3342756272e-02
+3.7506250000e+00		7.3602083681e-02
+4.6881562500e+00		5.3954169391e-02
+5.6256875000e+00		3.5908878863e-02
+6.5632187500e+00		2.0246596297e-02
+7.5007500000e+00		7.1529519122e-03
+8.4382812500e+00		7.3682182776e-05
+9.3758125000e+00		1.0211325665e-05
+1.0313343750e+01		1.0000000000e-05
+1.1250875000e+01		1.0008141379e-05
+1.2188406250e+01		1.0000000000e-05
+1.3125937500e+01		1.0000067139e-05
+1.4063468750e+01		1.0000008457e-05
+1.5001000000e+01		1.0000349405e-05
+
+
+"Time = 1.7578710937e+00
+-1.5000000000e+01		1.0000342178e-05
+-1.4062468750e+01		1.0000015875e-05
+-1.3124937500e+01		1.0000097455e-05
+-1.2187406250e+01		1.0000000000e-05
+-1.1249875000e+01		1.0012743529e-05
+-1.0312343750e+01		1.0000000000e-05
+-9.3748125000e+00		1.0304428205e-05
+-8.4372812500e+00		8.9431654645e-05
+-7.4997500000e+00		7.1452956192e-03
+-6.5622187500e+00		2.0247772496e-02
+-5.6246875000e+00		3.5895801928e-02
+-4.6871562500e+00		5.3927812823e-02
+-3.7496250000e+00		7.3555255309e-02
+-2.8120937500e+00		9.3273195047e-02
+-1.8745625000e+00		1.1071688788e-01
+-9.3703125000e-01		1.2307433917e-01
+5.0000000000e-04		1.2701111523e-01
+9.3803125000e-01		1.2306555852e-01
+1.8755625000e+00		1.1070065753e-01
+2.8130937500e+00		9.3252891807e-02
+3.7506250000e+00		7.3533928608e-02
+4.6881562500e+00		5.3907536251e-02
+5.6256875000e+00		3.5877749949e-02
+6.5632187500e+00		2.0232493250e-02
+7.5007500000e+00		7.1330777364e-03
+8.4382812500e+00		8.9123910389e-05
+9.3758125000e+00		1.0302977359e-05
+1.0313343750e+01		1.0000000000e-05
+1.1250875000e+01		1.0012741002e-05
+1.2188406250e+01		1.0000000000e-05
+1.3125937500e+01		1.0000097424e-05
+1.4063468750e+01		1.0000015869e-05
+1.5001000000e+01		1.0000342084e-05
+
+
+"Time = 2.1094453125e+00
+-1.5000000000e+01		1.0000335818e-05
+-1.4062468750e+01		1.0000027474e-05
+-1.3124937500e+01		1.0000131236e-05
+-1.2187406250e+01		1.0000000000e-05
+-1.1249875000e+01		1.0018590506e-05
+-1.0312343750e+01		1.0000000000e-05
+-9.3748125000e+00		1.0407462252e-05
+-8.4372812500e+00		1.0471587938e-04
+-7.4997500000e+00		7.1261438591e-03
+-6.5622187500e+00		2.0234537721e-02
+-5.6246875000e+00		3.5864780280e-02
+-4.6871562500e+00		5.3881912515e-02
+-3.7496250000e+00		7.3487769083e-02
+-2.8120937500e+00		9.3187798520e-02
+-1.8745625000e+00		1.1061345155e-01
+-9.3703125000e-01		1.2298084462e-01
+5.0000000000e-04		1.2682352636e-01
+9.3803125000e-01		1.2297227331e-01
+1.8755625000e+00		1.1059726819e-01
+2.8130937500e+00		9.3167493291e-02
+3.7506250000e+00		7.3466476843e-02
+4.6881562500e+00		5.3861656355e-02
+5.6256875000e+00		3.5846742471e-02
+6.5632187500e+00		2.0219289634e-02
+7.5007500000e+00		7.1139779949e-03
+8.4382812500e+00		1.0434795447e-04
+9.3758125000e+00		1.0405475807e-05
+1.0313343750e+01		1.0000000000e-05
+1.1250875000e+01		1.0018586770e-05
+1.2188406250e+01		1.0000000000e-05
+1.3125937500e+01		1.0000131194e-05
+1.4063468750e+01		1.0000027463e-05
+1.5001000000e+01		1.0000335726e-05
+
+
+"Time = 2.4610195312e+00
+-1.5000000000e+01		1.0000333266e-05
+-1.4062468750e+01		1.0000043394e-05
+-1.3124937500e+01		1.0000169069e-05
+-1.2187406250e+01		1.0000000000e-05
+-1.1249875000e+01		1.0025713114e-05
+-1.0312343750e+01		1.0000000000e-05
+-9.3748125000e+00		1.0521564233e-05
+-8.4372812500e+00		1.1976645581e-04
+-7.4997500000e+00		7.1077993635e-03
+-6.5622187500e+00		2.0222930242e-02
+-5.6246875000e+00		3.5834160859e-02
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diff --git a/test/GRHydro_test_tov_ppm/eps_y_[16][16].xg b/test/GRHydro_test_tov_ppm/eps_y_[16][16].xg
new file mode 100644
index 0000000..3e8e193
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/eps_y_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-1.5000000000e+01		1.0000000000e-05
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+
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+
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+
+"Time = 2.1094453125e+00
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+
+
+"Time = 2.4610195312e+00
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diff --git a/test/GRHydro_test_tov_ppm/eps_z_[16][16].xg b/test/GRHydro_test_tov_ppm/eps_z_[16][16].xg
new file mode 100644
index 0000000..3e8e193
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/eps_z_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-1.5000000000e+01		1.0000000000e-05
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+
+
+"Time = 3.5157421875e-01
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+5.6256875000e+00		3.6001229398e-02
+6.5632187500e+00		2.0293602136e-02
+7.5007500000e+00		7.2174116789e-03
+8.4382812500e+00		2.6188925831e-05
+9.3758125000e+00		1.0021690535e-05
+1.0313343750e+01		1.0000000000e-05
+1.1250875000e+01		1.0000000000e-05
+1.2188406250e+01		1.0000000000e-05
+1.3125937500e+01		1.0000004932e-05
+1.4063468750e+01		1.0000001092e-05
+1.5001000000e+01		1.0000256326e-05
+
+
+"Time = 7.0314843750e-01
+-1.5000000000e+01		1.0000332677e-05
+-1.4062468750e+01		1.0000002686e-05
+-1.3124937500e+01		1.0000019164e-05
+-1.2187406250e+01		1.0000000000e-05
+-1.1249875000e+01		1.0002865919e-05
+-1.0312343750e+01		1.0000000000e-05
+-9.3748125000e+00		1.0068620225e-05
+-8.4372812500e+00		4.2325323650e-05
+-7.4997500000e+00		7.2075415034e-03
+-6.5622187500e+00		2.0292408513e-02
+-5.6246875000e+00		3.5988614434e-02
+-4.6871562500e+00		5.4067924002e-02
+-3.7496250000e+00		7.3759056206e-02
+-2.8120937500e+00		9.3544037853e-02
+-1.8745625000e+00		1.1104203256e-01
+-9.3703125000e-01		1.2336458225e-01
+5.0000000000e-04		1.2760090563e-01
+9.3803125000e-01		1.2335556376e-01
+1.8755625000e+00		1.1102564413e-01
+2.8130937500e+00		9.3523661114e-02
+3.7506250000e+00		7.3737655121e-02
+4.6881562500e+00		5.4047586572e-02
+5.6256875000e+00		3.5970518596e-02
+6.5632187500e+00		2.0277066829e-02
+7.5007500000e+00		7.1951498513e-03
+8.4382812500e+00		4.2201109737e-05
+9.3758125000e+00		1.0068300361e-05
+1.0313343750e+01		1.0000000000e-05
+1.1250875000e+01		1.0002865480e-05
+1.2188406250e+01		1.0000000000e-05
+1.3125937500e+01		1.0000019158e-05
+1.4063468750e+01		1.0000002685e-05
+1.5001000000e+01		1.0000332587e-05
+
+
+"Time = 1.0547226562e+00
+-1.5000000000e+01		1.0000351140e-05
+-1.4062468750e+01		1.0000004554e-05
+-1.3124937500e+01		1.0000040609e-05
+-1.2187406250e+01		1.0000000000e-05
+-1.1249875000e+01		1.0004855213e-05
+-1.0312343750e+01		1.0000000000e-05
+-9.3748125000e+00		1.0133002317e-05
+-8.4372812500e+00		5.8222403345e-05
+-7.4997500000e+00		7.1859839946e-03
+-6.5622187500e+00		2.0276739853e-02
+-5.6246875000e+00		3.5957923858e-02
+-4.6871562500e+00		5.4021304679e-02
+-3.7496250000e+00		7.3691516621e-02
+-2.8120937500e+00		9.3453597074e-02
+-1.8745625000e+00		1.1093297669e-01
+-9.3703125000e-01		1.2326819384e-01
+5.0000000000e-04		1.2740225734e-01
+9.3803125000e-01		1.2325930096e-01
+1.8755625000e+00		1.1091662980e-01
+2.8130937500e+00		9.3433248448e-02
+3.7506250000e+00		7.3670139135e-02
+4.6881562500e+00		5.4000987355e-02
+5.6256875000e+00		3.5939842662e-02
+6.5632187500e+00		2.0261416577e-02
+7.5007500000e+00		7.1736532368e-03
+8.4382812500e+00		5.8036575692e-05
+9.3758125000e+00		1.0132389457e-05
+1.0313343750e+01		1.0000000000e-05
+1.1250875000e+01		1.0004854348e-05
+1.2188406250e+01		1.0000000000e-05
+1.3125937500e+01		1.0000040596e-05
+1.4063468750e+01		1.0000004552e-05
+1.5001000000e+01		1.0000351044e-05
+
+
+"Time = 1.4062968750e+00
+-1.5000000000e+01		1.0000349500e-05
+-1.4062468750e+01		1.0000008460e-05
+-1.3124937500e+01		1.0000067160e-05
+-1.2187406250e+01		1.0000000000e-05
+-1.1249875000e+01		1.0008142943e-05
+-1.0312343750e+01		1.0000000000e-05
+-9.3748125000e+00		1.0212317134e-05
+-8.4372812500e+00		7.3929208501e-05
+-7.4997500000e+00		7.1652247459e-03
+-6.5622187500e+00		2.0261898628e-02
+-5.6246875000e+00		3.5926945355e-02
+-4.6871562500e+00		5.3974466345e-02
+-3.7496250000e+00		7.3623437215e-02
+-2.8120937500e+00		9.3363078754e-02
+-1.8745625000e+00		1.1082475201e-01
+-9.3703125000e-01		1.2317157206e-01
+5.0000000000e-04		1.2720614192e-01
+9.3803125000e-01		1.2316273570e-01
+1.8755625000e+00		1.1080845661e-01
+2.8130937500e+00		9.3342756272e-02
+3.7506250000e+00		7.3602083681e-02
+4.6881562500e+00		5.3954169391e-02
+5.6256875000e+00		3.5908878863e-02
+6.5632187500e+00		2.0246596297e-02
+7.5007500000e+00		7.1529519122e-03
+8.4382812500e+00		7.3682182776e-05
+9.3758125000e+00		1.0211325665e-05
+1.0313343750e+01		1.0000000000e-05
+1.1250875000e+01		1.0008141379e-05
+1.2188406250e+01		1.0000000000e-05
+1.3125937500e+01		1.0000067139e-05
+1.4063468750e+01		1.0000008457e-05
+1.5001000000e+01		1.0000349405e-05
+
+
+"Time = 1.7578710937e+00
+-1.5000000000e+01		1.0000342178e-05
+-1.4062468750e+01		1.0000015875e-05
+-1.3124937500e+01		1.0000097455e-05
+-1.2187406250e+01		1.0000000000e-05
+-1.1249875000e+01		1.0012743529e-05
+-1.0312343750e+01		1.0000000000e-05
+-9.3748125000e+00		1.0304428205e-05
+-8.4372812500e+00		8.9431654645e-05
+-7.4997500000e+00		7.1452956192e-03
+-6.5622187500e+00		2.0247772496e-02
+-5.6246875000e+00		3.5895801928e-02
+-4.6871562500e+00		5.3927812823e-02
+-3.7496250000e+00		7.3555255309e-02
+-2.8120937500e+00		9.3273195047e-02
+-1.8745625000e+00		1.1071688788e-01
+-9.3703125000e-01		1.2307433917e-01
+5.0000000000e-04		1.2701111523e-01
+9.3803125000e-01		1.2306555852e-01
+1.8755625000e+00		1.1070065753e-01
+2.8130937500e+00		9.3252891807e-02
+3.7506250000e+00		7.3533928608e-02
+4.6881562500e+00		5.3907536251e-02
+5.6256875000e+00		3.5877749949e-02
+6.5632187500e+00		2.0232493250e-02
+7.5007500000e+00		7.1330777364e-03
+8.4382812500e+00		8.9123910389e-05
+9.3758125000e+00		1.0302977359e-05
+1.0313343750e+01		1.0000000000e-05
+1.1250875000e+01		1.0012741002e-05
+1.2188406250e+01		1.0000000000e-05
+1.3125937500e+01		1.0000097424e-05
+1.4063468750e+01		1.0000015869e-05
+1.5001000000e+01		1.0000342084e-05
+
+
+"Time = 2.1094453125e+00
+-1.5000000000e+01		1.0000335818e-05
+-1.4062468750e+01		1.0000027474e-05
+-1.3124937500e+01		1.0000131236e-05
+-1.2187406250e+01		1.0000000000e-05
+-1.1249875000e+01		1.0018590506e-05
+-1.0312343750e+01		1.0000000000e-05
+-9.3748125000e+00		1.0407462252e-05
+-8.4372812500e+00		1.0471587938e-04
+-7.4997500000e+00		7.1261438591e-03
+-6.5622187500e+00		2.0234537721e-02
+-5.6246875000e+00		3.5864780280e-02
+-4.6871562500e+00		5.3881912515e-02
+-3.7496250000e+00		7.3487769083e-02
+-2.8120937500e+00		9.3187798520e-02
+-1.8745625000e+00		1.1061345155e-01
+-9.3703125000e-01		1.2298084462e-01
+5.0000000000e-04		1.2682352636e-01
+9.3803125000e-01		1.2297227331e-01
+1.8755625000e+00		1.1059726819e-01
+2.8130937500e+00		9.3167493291e-02
+3.7506250000e+00		7.3466476843e-02
+4.6881562500e+00		5.3861656355e-02
+5.6256875000e+00		3.5846742471e-02
+6.5632187500e+00		2.0219289634e-02
+7.5007500000e+00		7.1139779949e-03
+8.4382812500e+00		1.0434795447e-04
+9.3758125000e+00		1.0405475807e-05
+1.0313343750e+01		1.0000000000e-05
+1.1250875000e+01		1.0018586770e-05
+1.2188406250e+01		1.0000000000e-05
+1.3125937500e+01		1.0000131194e-05
+1.4063468750e+01		1.0000027463e-05
+1.5001000000e+01		1.0000335726e-05
+
+
+"Time = 2.4610195312e+00
+-1.5000000000e+01		1.0000333266e-05
+-1.4062468750e+01		1.0000043394e-05
+-1.3124937500e+01		1.0000169069e-05
+-1.2187406250e+01		1.0000000000e-05
+-1.1249875000e+01		1.0025713114e-05
+-1.0312343750e+01		1.0000000000e-05
+-9.3748125000e+00		1.0521564233e-05
+-8.4372812500e+00		1.1976645581e-04
+-7.4997500000e+00		7.1077993635e-03
+-6.5622187500e+00		2.0222930242e-02
+-5.6246875000e+00		3.5834160859e-02
+-4.6871562500e+00		5.3839038025e-02
+-3.7496250000e+00		7.3426013047e-02
+-2.8120937500e+00		9.3110638641e-02
+-1.8745625000e+00		1.1051984682e-01
+-9.3703125000e-01		1.2289325786e-01
+5.0000000000e-04		1.2665395081e-01
+9.3803125000e-01		1.2288465336e-01
+1.8755625000e+00		1.1050371846e-01
+2.8130937500e+00		9.3090346634e-02
+3.7506250000e+00		7.3404741543e-02
+4.6881562500e+00		5.3818798330e-02
+5.6256875000e+00		3.5816136902e-02
+6.5632187500e+00		2.0207719187e-02
+7.5007500000e+00		7.0956824164e-03
+8.4382812500e+00		1.1933886366e-04
+9.3758125000e+00		1.0519047438e-05
+1.0313343750e+01		1.0000000000e-05
+1.1250875000e+01		1.0025707932e-05
+1.2188406250e+01		1.0000000000e-05
+1.3125937500e+01		1.0000169015e-05
+1.4063468750e+01		1.0000043379e-05
+1.5001000000e+01		1.0000333174e-05
diff --git a/test/GRHydro_test_tov_ppm/gxx_maximum.xg b/test/GRHydro_test_tov_ppm/gxx_maximum.xg
new file mode 100644
index 0000000..247c527
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/gxx_maximum.xg
@@ -0,0 +1,9 @@
+"gxx v time
+0.0000000000000	2.0318467472317
+0.3515742187500	2.0318348574011
+0.7031484375000	2.0318018981571
+1.0547226562500	2.0317521489097
+1.4062968750000	2.0316894325444
+1.7578710937500	2.0316168351708
+2.1094453125000	2.0315368355809
+2.4610195312500	2.0314515963691
diff --git a/test/GRHydro_test_tov_ppm/gxx_minimum.xg b/test/GRHydro_test_tov_ppm/gxx_minimum.xg
new file mode 100644
index 0000000..236f58d
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/gxx_minimum.xg
@@ -0,0 +1,9 @@
+"gxx v time
+0.0000000000000	1.1122119022998
+0.3515742187500	1.1122110650347
+0.7031484375000	1.1122108620858
+1.0547226562500	1.1122107758294
+1.4062968750000	1.1122106742025
+1.7578710937500	1.1122105337128
+2.1094453125000	1.1122103499269
+2.4610195312500	1.1122101244787
diff --git a/test/GRHydro_test_tov_ppm/gxx_norm1.xg b/test/GRHydro_test_tov_ppm/gxx_norm1.xg
new file mode 100644
index 0000000..09dc024
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/gxx_norm1.xg
@@ -0,0 +1,9 @@
+"gxx v time
+0.0000000000000	1.2317730312624
+0.3515742187500	1.2317724613044
+0.7031484375000	1.2317724088524
+1.0547226562500	1.2317725544710
+1.4062968750000	1.2317728180271
+1.7578710937500	1.2317731756517
+2.1094453125000	1.2317736206790
+2.4610195312500	1.2317741539901
diff --git a/test/GRHydro_test_tov_ppm/gxx_norm2.xg b/test/GRHydro_test_tov_ppm/gxx_norm2.xg
new file mode 100644
index 0000000..251fc12
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/gxx_norm2.xg
@@ -0,0 +1,9 @@
+"gxx v time
+0.0000000000000	1.2369502262701
+0.3515742187500	1.2369496724892
+0.7031484375000	1.2369495941365
+1.0547226562500	1.2369496877250
+1.4062968750000	1.2369498781640
+1.7578710937500	1.2369501445541
+2.1094453125000	1.2369504828452
+2.4610195312500	1.2369508965327
diff --git a/test/GRHydro_test_tov_ppm/gxy_maximum.xg b/test/GRHydro_test_tov_ppm/gxy_maximum.xg
new file mode 100644
index 0000000..42abcf9
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/gxy_maximum.xg
@@ -0,0 +1,9 @@
+"gxy v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000003878200
+0.7031484375000	0.0000013783129
+1.0547226562500	0.0000046012097
+1.4062968750000	0.0000103317718
+1.7578710937500	0.0000175566951
+2.1094453125000	0.0000253475051
+2.4610195312500	0.0000318397947
diff --git a/test/GRHydro_test_tov_ppm/gxy_minimum.xg b/test/GRHydro_test_tov_ppm/gxy_minimum.xg
new file mode 100644
index 0000000..76db2bc
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/gxy_minimum.xg
@@ -0,0 +1,9 @@
+"gxy v time
+0.0000000000000	0.0000000000000
+0.3515742187500	-0.0000003877751
+0.7031484375000	-0.0000013781745
+1.0547226562500	-0.0000046125483
+1.4062968750000	-0.0000103549801
+1.7578710937500	-0.0000176016846
+2.1094453125000	-0.0000254054121
+2.4610195312500	-0.0000319003321
diff --git a/test/GRHydro_test_tov_ppm/gxy_norm1.xg b/test/GRHydro_test_tov_ppm/gxy_norm1.xg
new file mode 100644
index 0000000..50f0e6a
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/gxy_norm1.xg
@@ -0,0 +1,9 @@
+"gxy v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000000085714
+0.7031484375000	0.0000000435823
+1.0547226562500	0.0000001247930
+1.4062968750000	0.0000002646943
+1.7578710937500	0.0000004670886
+2.1094453125000	0.0000007449287
+2.4610195312500	0.0000011518610
diff --git a/test/GRHydro_test_tov_ppm/gxy_norm2.xg b/test/GRHydro_test_tov_ppm/gxy_norm2.xg
new file mode 100644
index 0000000..5bbce9e
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/gxy_norm2.xg
@@ -0,0 +1,9 @@
+"gxy v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000000275867
+0.7031484375000	0.0000001306654
+1.0547226562500	0.0000003797683
+1.4062968750000	0.0000007955489
+1.7578710937500	0.0000013575173
+2.1094453125000	0.0000020565624
+2.4610195312500	0.0000029298435
diff --git a/test/GRHydro_test_tov_ppm/gxz_maximum.xg b/test/GRHydro_test_tov_ppm/gxz_maximum.xg
new file mode 100644
index 0000000..a71a85b
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/gxz_maximum.xg
@@ -0,0 +1,9 @@
+"gxz v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000003878200
+0.7031484375000	0.0000013783129
+1.0547226562500	0.0000046012097
+1.4062968750000	0.0000103317718
+1.7578710937500	0.0000175566951
+2.1094453125000	0.0000253475051
+2.4610195312500	0.0000318397947
diff --git a/test/GRHydro_test_tov_ppm/gxz_minimum.xg b/test/GRHydro_test_tov_ppm/gxz_minimum.xg
new file mode 100644
index 0000000..f124f6d
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/gxz_minimum.xg
@@ -0,0 +1,9 @@
+"gxz v time
+0.0000000000000	0.0000000000000
+0.3515742187500	-0.0000003877751
+0.7031484375000	-0.0000013781745
+1.0547226562500	-0.0000046125483
+1.4062968750000	-0.0000103549801
+1.7578710937500	-0.0000176016846
+2.1094453125000	-0.0000254054121
+2.4610195312500	-0.0000319003321
diff --git a/test/GRHydro_test_tov_ppm/gxz_norm1.xg b/test/GRHydro_test_tov_ppm/gxz_norm1.xg
new file mode 100644
index 0000000..6e1e802
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/gxz_norm1.xg
@@ -0,0 +1,9 @@
+"gxz v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000000085714
+0.7031484375000	0.0000000435823
+1.0547226562500	0.0000001247931
+1.4062968750000	0.0000002646944
+1.7578710937500	0.0000004670888
+2.1094453125000	0.0000007449289
+2.4610195312500	0.0000011518612
diff --git a/test/GRHydro_test_tov_ppm/gxz_norm2.xg b/test/GRHydro_test_tov_ppm/gxz_norm2.xg
new file mode 100644
index 0000000..e954fd6
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/gxz_norm2.xg
@@ -0,0 +1,9 @@
+"gxz v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000000275867
+0.7031484375000	0.0000001306654
+1.0547226562500	0.0000003797683
+1.4062968750000	0.0000007955489
+1.7578710937500	0.0000013575173
+2.1094453125000	0.0000020565624
+2.4610195312500	0.0000029298435
diff --git a/test/GRHydro_test_tov_ppm/gyy_maximum.xg b/test/GRHydro_test_tov_ppm/gyy_maximum.xg
new file mode 100644
index 0000000..6945fcb
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/gyy_maximum.xg
@@ -0,0 +1,9 @@
+"gyy v time
+0.0000000000000	2.0318467472317
+0.3515742187500	2.0318348574011
+0.7031484375000	2.0318018981571
+1.0547226562500	2.0317521489097
+1.4062968750000	2.0316894325444
+1.7578710937500	2.0316168351708
+2.1094453125000	2.0315368355809
+2.4610195312500	2.0314515963691
diff --git a/test/GRHydro_test_tov_ppm/gyy_minimum.xg b/test/GRHydro_test_tov_ppm/gyy_minimum.xg
new file mode 100644
index 0000000..f4d908c
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/gyy_minimum.xg
@@ -0,0 +1,9 @@
+"gyy v time
+0.0000000000000	1.1122119022998
+0.3515742187500	1.1122110650752
+0.7031484375000	1.1122108622215
+1.0547226562500	1.1122107758527
+1.4062968750000	1.1122106738893
+1.7578710937500	1.1122105331855
+2.1094453125000	1.1122103495004
+2.4610195312500	1.1122101243953
diff --git a/test/GRHydro_test_tov_ppm/gyy_norm1.xg b/test/GRHydro_test_tov_ppm/gyy_norm1.xg
new file mode 100644
index 0000000..cf730c8
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/gyy_norm1.xg
@@ -0,0 +1,9 @@
+"gyy v time
+0.0000000000000	1.2317730312624
+0.3515742187500	1.2317724613049
+0.7031484375000	1.2317724088539
+1.0547226562500	1.2317725544722
+1.4062968750000	1.2317728180258
+1.7578710937500	1.2317731756476
+2.1094453125000	1.2317736206740
+2.4610195312500	1.2317741539867
diff --git a/test/GRHydro_test_tov_ppm/gyy_norm2.xg b/test/GRHydro_test_tov_ppm/gyy_norm2.xg
new file mode 100644
index 0000000..6e0dc12
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/gyy_norm2.xg
@@ -0,0 +1,9 @@
+"gyy v time
+0.0000000000000	1.2369502262701
+0.3515742187500	1.2369496724896
+0.7031484375000	1.2369495941379
+1.0547226562500	1.2369496877262
+1.4062968750000	1.2369498781628
+1.7578710937500	1.2369501445504
+2.1094453125000	1.2369504828406
+2.4610195312500	1.2369508965296
diff --git a/test/GRHydro_test_tov_ppm/gyz_maximum.xg b/test/GRHydro_test_tov_ppm/gyz_maximum.xg
new file mode 100644
index 0000000..24de994
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/gyz_maximum.xg
@@ -0,0 +1,9 @@
+"gyz v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000003878200
+0.7031484375000	0.0000013783129
+1.0547226562500	0.0000046012097
+1.4062968750000	0.0000103317718
+1.7578710937500	0.0000175566951
+2.1094453125000	0.0000253475051
+2.4610195312500	0.0000318397947
diff --git a/test/GRHydro_test_tov_ppm/gyz_minimum.xg b/test/GRHydro_test_tov_ppm/gyz_minimum.xg
new file mode 100644
index 0000000..c9dacc2
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/gyz_minimum.xg
@@ -0,0 +1,9 @@
+"gyz v time
+0.0000000000000	0.0000000000000
+0.3515742187500	-0.0000003877751
+0.7031484375000	-0.0000013781745
+1.0547226562500	-0.0000046125483
+1.4062968750000	-0.0000103549801
+1.7578710937500	-0.0000176016846
+2.1094453125000	-0.0000254054121
+2.4610195312500	-0.0000319003321
diff --git a/test/GRHydro_test_tov_ppm/gyz_norm1.xg b/test/GRHydro_test_tov_ppm/gyz_norm1.xg
new file mode 100644
index 0000000..64cfd53
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/gyz_norm1.xg
@@ -0,0 +1,9 @@
+"gyz v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000000085714
+0.7031484375000	0.0000000435823
+1.0547226562500	0.0000001247932
+1.4062968750000	0.0000002646946
+1.7578710937500	0.0000004670890
+2.1094453125000	0.0000007449291
+2.4610195312500	0.0000011518615
diff --git a/test/GRHydro_test_tov_ppm/gyz_norm2.xg b/test/GRHydro_test_tov_ppm/gyz_norm2.xg
new file mode 100644
index 0000000..cd143ee
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/gyz_norm2.xg
@@ -0,0 +1,9 @@
+"gyz v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000000275867
+0.7031484375000	0.0000001306654
+1.0547226562500	0.0000003797683
+1.4062968750000	0.0000007955489
+1.7578710937500	0.0000013575173
+2.1094453125000	0.0000020565624
+2.4610195312500	0.0000029298435
diff --git a/test/GRHydro_test_tov_ppm/gzz_maximum.xg b/test/GRHydro_test_tov_ppm/gzz_maximum.xg
new file mode 100644
index 0000000..2a9cec8
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/gzz_maximum.xg
@@ -0,0 +1,9 @@
+"gzz v time
+0.0000000000000	2.0318467472317
+0.3515742187500	2.0318348574011
+0.7031484375000	2.0318018981571
+1.0547226562500	2.0317521489097
+1.4062968750000	2.0316894325444
+1.7578710937500	2.0316168351708
+2.1094453125000	2.0315368355809
+2.4610195312500	2.0314515963691
diff --git a/test/GRHydro_test_tov_ppm/gzz_minimum.xg b/test/GRHydro_test_tov_ppm/gzz_minimum.xg
new file mode 100644
index 0000000..fdc12b9
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/gzz_minimum.xg
@@ -0,0 +1,9 @@
+"gzz v time
+0.0000000000000	1.1122119022998
+0.3515742187500	1.1122110651132
+0.7031484375000	1.1122108623503
+1.0547226562500	1.1122107758819
+1.4062968750000	1.1122106736051
+1.7578710937500	1.1122105326933
+2.1094453125000	1.1122103490881
+2.4610195312500	1.1122101242940
diff --git a/test/GRHydro_test_tov_ppm/gzz_norm1.xg b/test/GRHydro_test_tov_ppm/gzz_norm1.xg
new file mode 100644
index 0000000..6532e18
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/gzz_norm1.xg
@@ -0,0 +1,9 @@
+"gzz v time
+0.0000000000000	1.2317730312624
+0.3515742187500	1.2317724613053
+0.7031484375000	1.2317724088555
+1.0547226562500	1.2317725544735
+1.4062968750000	1.2317728180245
+1.7578710937500	1.2317731756435
+2.1094453125000	1.2317736206690
+2.4610195312500	1.2317741539833
diff --git a/test/GRHydro_test_tov_ppm/gzz_norm2.xg b/test/GRHydro_test_tov_ppm/gzz_norm2.xg
new file mode 100644
index 0000000..5c9c02f
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/gzz_norm2.xg
@@ -0,0 +1,9 @@
+"gzz v time
+0.0000000000000	1.2369502262701
+0.3515742187500	1.2369496724900
+0.7031484375000	1.2369495941393
+1.0547226562500	1.2369496877273
+1.4062968750000	1.2369498781616
+1.7578710937500	1.2369501445466
+2.1094453125000	1.2369504828361
+2.4610195312500	1.2369508965265
diff --git a/test/GRHydro_test_tov_ppm/ham_3D_diagonal.xg b/test/GRHydro_test_tov_ppm/ham_3D_diagonal.xg
new file mode 100644
index 0000000..6c77e9a
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/ham_3D_diagonal.xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		-3.8646695839e-06
+-2.2733058596e+01		-3.4024767570e-06
+-2.1109206837e+01		-2.7012002566e-06
+-1.9485355079e+01		-1.6034050617e-06
+-1.7861503320e+01		1.7863415752e-07
+-1.6237651561e+01		3.1976861445e-06
+-1.4613799803e+01		8.5802810323e-06
+-1.2989948044e+01		1.8791001312e-05
+-1.1366096285e+01		3.9712084943e-05
+-9.7422445267e+00		8.7006696798e-05
+-8.1183927680e+00		6.1589700898e-04
+-6.4945410093e+00		8.0147961082e-05
+-4.8706892506e+00		-6.5166739015e-05
+-3.2468374920e+00		-4.5843182600e-04
+-1.6229857333e+00		-1.0737542848e-03
+8.6602540378e-04		-1.4208417833e-03
+1.6247177841e+00		-1.0731171951e-03
+3.2485695428e+00		-4.5785403488e-04
+4.8724213015e+00		-6.4902393259e-05
+6.4962730601e+00		8.0217824743e-05
+8.1201248188e+00		6.2047116180e-04
+9.7439765775e+00		8.6930516079e-05
+1.1367828336e+01		3.9680047396e-05
+1.2991680095e+01		1.8775952470e-05
+1.4615531854e+01		8.5726177554e-06
+1.6239383612e+01		3.1934980101e-06
+1.7863235371e+01		1.7620509029e-07
+1.9487087130e+01		-1.6048753815e-06
+2.1110938888e+01		-2.7021205963e-06
+2.2734790647e+01		-3.4030783047e-06
+2.4358642406e+01		-3.8650709296e-06
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 3.5157421875e-01
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		-2.4239101739e-06
+-2.2733058596e+01		-3.4164770824e-06
+-2.1109206837e+01		-2.7010386131e-06
+-1.9485355079e+01		-1.6030757854e-06
+-1.7861503320e+01		1.7927100283e-07
+-1.6237651561e+01		3.1988761906e-06
+-1.4613799803e+01		8.5829727195e-06
+-1.2989948044e+01		1.8797632966e-05
+-1.1366096285e+01		3.9729835496e-05
+-9.7422445267e+00		8.7055667820e-05
+-8.1183927680e+00		6.2616111091e-04
+-6.4945410093e+00		8.1013048444e-05
+-4.8706892506e+00		-6.4347793453e-05
+-3.2468374920e+00		-4.5897528280e-04
+-1.6229857333e+00		-1.1327387623e-03
+8.6602540378e-04		-1.2969377409e-03
+1.6247177841e+00		-1.1323085450e-03
+3.2485695428e+00		-4.5840063117e-04
+4.8724213015e+00		-6.4083557737e-05
+6.4962730601e+00		8.1082902566e-05
+8.1201248188e+00		6.3089271648e-04
+9.7439765775e+00		8.6979335714e-05
+1.1367828336e+01		3.9697818098e-05
+1.2991680095e+01		1.8782540746e-05
+1.4615531854e+01		8.5754213554e-06
+1.6239383612e+01		3.1947819137e-06
+1.7863235371e+01		1.7679234707e-07
+1.9487087130e+01		-1.6045709353e-06
+2.1110938888e+01		-2.7019371113e-06
+2.2734790647e+01		-3.4170859253e-06
+2.4358642406e+01		-2.4248127827e-06
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 7.0314843750e-01
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		-2.3287287965e-06
+-2.2733058596e+01		-3.4692116908e-06
+-2.1109206837e+01		-2.6993171272e-06
+-1.9485355079e+01		-1.6030887246e-06
+-1.7861503320e+01		1.8104160495e-07
+-1.6237651561e+01		3.2024771837e-06
+-1.4613799803e+01		8.5908544969e-06
+-1.2989948044e+01		1.8816523238e-05
+-1.1366096285e+01		3.9779467610e-05
+-9.7422445267e+00		8.6831083823e-05
+-8.1183927680e+00		6.4773422061e-04
+-6.4945410093e+00		8.3155501323e-05
+-4.8706892506e+00		-6.2012747546e-05
+-3.2468374920e+00		-4.5996231523e-04
+-1.6229857333e+00		-1.1981575388e-03
+8.6602540378e-04		-1.1726472508e-03
+1.6247177841e+00		-1.1979286512e-03
+3.2485695428e+00		-4.5939340021e-04
+4.8724213015e+00		-6.1749347807e-05
+6.4962730601e+00		8.3221184514e-05
+8.1201248188e+00		6.5294959169e-04
+9.7439765775e+00		8.6753217753e-05
+1.1367828336e+01		3.9747444218e-05
+1.2991680095e+01		1.8801390497e-05
+1.4615531854e+01		8.5834069758e-06
+1.6239383612e+01		3.1984276115e-06
+1.7863235371e+01		1.7857904940e-07
+1.9487087130e+01		-1.6046085809e-06
+2.1110938888e+01		-2.7002146740e-06
+2.2734790647e+01		-3.4698121762e-06
+2.4358642406e+01		-2.3296753505e-06
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 1.0547226562e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		-2.2992455659e-06
+-2.2733058596e+01		-3.5791864511e-06
+-2.1109206837e+01		-2.6908925787e-06
+-1.9485355079e+01		-1.6052811462e-06
+-1.7861503320e+01		1.8335045943e-07
+-1.6237651561e+01		3.2082861529e-06
+-1.4613799803e+01		8.6033821389e-06
+-1.2989948044e+01		1.8845725730e-05
+-1.1366096285e+01		3.9866185916e-05
+-9.7422445267e+00		8.2365755427e-05
+-8.1183927680e+00		6.4922681180e-04
+-6.4945410093e+00		8.2620470637e-05
+-4.8706892506e+00		-5.8386448759e-05
+-3.2468374920e+00		-4.6013082570e-04
+-1.6229857333e+00		-1.2730539065e-03
+8.6602540378e-04		-1.0437262703e-03
+1.6247177841e+00		-1.2730320967e-03
+3.2485695428e+00		-4.5956344334e-04
+4.8724213015e+00		-5.8125298766e-05
+6.4962730601e+00		8.2680373640e-05
+8.1201248188e+00		6.5483548968e-04
+9.7439765775e+00		8.2283816161e-05
+1.1367828336e+01		3.9834030030e-05
+1.2991680095e+01		1.8830579470e-05
+1.4615531854e+01		8.5959277304e-06
+1.6239383612e+01		3.2042028209e-06
+1.7863235371e+01		1.8092056707e-07
+1.9487087130e+01		-1.6067948238e-06
+2.1110938888e+01		-2.6917920750e-06
+2.2734790647e+01		-3.5797571064e-06
+2.4358642406e+01		-2.3002131418e-06
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 1.4062968750e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		-2.2734358998e-06
+-2.2733058596e+01		-3.7366235535e-06
+-2.1109206837e+01		-2.6824469691e-06
+-1.9485355079e+01		-1.6070952058e-06
+-1.7861503320e+01		1.8453186828e-07
+-1.6237651561e+01		3.2156648676e-06
+-1.4613799803e+01		8.6195383773e-06
+-1.2989948044e+01		1.8882075915e-05
+-1.1366096285e+01		4.0086594385e-05
+-9.7422445267e+00		7.3814723728e-05
+-8.1183927680e+00		6.4095860215e-04
+-6.4945410093e+00		7.7333461592e-05
+-4.8706892506e+00		-5.3718225517e-05
+-3.2468374920e+00		-4.5828040698e-04
+-1.6229857333e+00		-1.3605406101e-03
+8.6602540378e-04		-9.0564538186e-04
+1.6247177841e+00		-1.3606430485e-03
+3.2485695428e+00		-4.5770863126e-04
+4.8724213015e+00		-5.3459010986e-05
+6.4962730601e+00		7.7371334331e-05
+8.1201248188e+00		6.4641445497e-04
+9.7439765775e+00		7.3708380145e-05
+1.1367828336e+01		4.0053684474e-05
+1.2991680095e+01		1.8866919859e-05
+1.4615531854e+01		8.6120275753e-06
+1.6239383612e+01		3.2115637970e-06
+1.7863235371e+01		1.8207791864e-07
+1.9487087130e+01		-1.6085975402e-06
+2.1110938888e+01		-2.6833334360e-06
+2.2734790647e+01		-3.7371414578e-06
+2.4358642406e+01		-2.2744241394e-06
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 1.7578710937e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		-2.2606043152e-06
+-2.2733058596e+01		-3.9128996405e-06
+-2.1109206837e+01		-2.6935692879e-06
+-1.9485355079e+01		-1.6035797423e-06
+-1.7861503320e+01		1.8338890536e-07
+-1.6237651561e+01		3.2231537055e-06
+-1.4613799803e+01		8.6378259295e-06
+-1.2989948044e+01		1.8921512959e-05
+-1.1366096285e+01		4.0515004330e-05
+-9.7422445267e+00		6.9225999091e-05
+-8.1183927680e+00		6.3502938993e-04
+-6.4945410093e+00		7.2781931973e-05
+-4.8706892506e+00		-4.8509958159e-05
+-3.2468374920e+00		-4.5345849551e-04
+-1.6229857333e+00		-1.4629408193e-03
+8.6602540378e-04		-7.5356027464e-04
+1.6247177841e+00		-1.4632084623e-03
+3.2485695428e+00		-4.5287584681e-04
+4.8724213015e+00		-4.8250347227e-05
+6.4962730601e+00		7.2755289565e-05
+8.1201248188e+00		6.3997168999e-04
+9.7439765775e+00		6.9062361495e-05
+1.1367828336e+01		4.0480873891e-05
+1.2991680095e+01		1.8906333027e-05
+1.4615531854e+01		8.6302690880e-06
+1.6239383612e+01		3.2190464043e-06
+1.7863235371e+01		1.8091612031e-07
+1.9487087130e+01		-1.6050816555e-06
+2.1110938888e+01		-2.6944546952e-06
+2.2734790647e+01		-3.9133467491e-06
+2.4358642406e+01		-2.2616086897e-06
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 2.1094453125e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		-2.2707632434e-06
+-2.2733058596e+01		-4.0712494810e-06
+-2.1109206837e+01		-2.7480161201e-06
+-1.9485355079e+01		-1.5914688924e-06
+-1.7861503320e+01		1.8085081417e-07
+-1.6237651561e+01		3.2284904193e-06
+-1.4613799803e+01		8.6560128267e-06
+-1.2989948044e+01		1.8964687190e-05
+-1.1366096285e+01		4.0578999255e-05
+-9.7422445267e+00		7.3773733098e-05
+-8.1183927680e+00		6.2570767016e-04
+-6.4945410093e+00		7.6687697888e-05
+-4.8706892506e+00		-4.3404898806e-05
+-3.2468374920e+00		-4.4559243998e-04
+-1.6229857333e+00		-1.5771239519e-03
+8.6602540378e-04		-5.8935697970e-04
+1.6247177841e+00		-1.5778611291e-03
+3.2485695428e+00		-4.4491280052e-04
+4.8724213015e+00		-4.3149158397e-05
+6.4962730601e+00		7.6571698613e-05
+8.1201248188e+00		6.2999510915e-04
+9.7439765775e+00		7.3550934416e-05
+1.1367828336e+01		4.0546823003e-05
+1.2991680095e+01		1.8949432311e-05
+1.4615531854e+01		8.6484279626e-06
+1.6239383612e+01		3.2243630751e-06
+1.7863235371e+01		1.7838440489e-07
+1.9487087130e+01		-1.5929683682e-06
+2.1110938888e+01		-2.7488987190e-06
+2.2734790647e+01		-4.0716329115e-06
+2.4358642406e+01		-2.2717760684e-06
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 2.4610195312e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		-2.3052349765e-06
+-2.2733058596e+01		-4.1817195951e-06
+-2.1109206837e+01		-2.8598044574e-06
+-1.9485355079e+01		-1.5766442327e-06
+-1.7861503320e+01		1.8354299303e-07
+-1.6237651561e+01		3.2288518119e-06
+-1.4613799803e+01		8.6708087477e-06
+-1.2989948044e+01		1.9038707724e-05
+-1.1366096285e+01		3.9153901917e-05
+-9.7422445267e+00		8.3727082661e-05
+-8.1183927680e+00		6.0535482052e-04
+-6.4945410093e+00		8.9946200347e-05
+-4.8706892506e+00		-3.8492768112e-05
+-3.2468374920e+00		-4.3678986170e-04
+-1.6229857333e+00		-1.6989676399e-03
+8.6602540378e-04		-4.2004319221e-04
+1.6247177841e+00		-1.6998510727e-03
+3.2485695428e+00		-4.3602715715e-04
+4.8724213015e+00		-3.8238565278e-05
+6.4962730601e+00		8.9791181697e-05
+8.1201248188e+00		6.0905394575e-04
+9.7439765775e+00		8.3491423313e-05
+1.1367828336e+01		3.9131297460e-05
+1.2991680095e+01		1.9023181979e-05
+1.4615531854e+01		8.6632066154e-06
+1.6239383612e+01		3.2247111631e-06
+1.7863235371e+01		1.8107577483e-07
+1.9487087130e+01		-1.5781424309e-06
+2.1110938888e+01		-2.8606532286e-06
+2.2734790647e+01		-4.1820647310e-06
+2.4358642406e+01		-2.3062470993e-06
+2.5982494164e+01		0.0000000000e+00
diff --git a/test/GRHydro_test_tov_ppm/ham_maximum.xg b/test/GRHydro_test_tov_ppm/ham_maximum.xg
new file mode 100644
index 0000000..7015cfa
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/ham_maximum.xg
@@ -0,0 +1,9 @@
+"ham v time
+0.0000000000000	0.0006310542968
+0.3515742187500	0.0006405122399
+0.7031484375000	0.0006792234313
+1.0547226562500	0.0007113484328
+1.4062968750000	0.0007211858059
+1.7578710937500	0.0007101964463
+2.1094453125000	0.0006838384969
+2.4610195312500	0.0006457324088
diff --git a/test/GRHydro_test_tov_ppm/ham_minimum.xg b/test/GRHydro_test_tov_ppm/ham_minimum.xg
new file mode 100644
index 0000000..ffbe145
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/ham_minimum.xg
@@ -0,0 +1,9 @@
+"ham v time
+0.0000000000000	-0.0014208417833
+0.3515742187500	-0.0012969377409
+0.7031484375000	-0.0011981575388
+1.0547226562500	-0.0012730539065
+1.4062968750000	-0.0013606430485
+1.7578710937500	-0.0014632084623
+2.1094453125000	-0.0015778611291
+2.4610195312500	-0.0016998510727
diff --git a/test/GRHydro_test_tov_ppm/ham_norm1.xg b/test/GRHydro_test_tov_ppm/ham_norm1.xg
new file mode 100644
index 0000000..2b669dd
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/ham_norm1.xg
@@ -0,0 +1,9 @@
+"ham v time
+0.0000000000000	0.0000260910737
+0.3515742187500	0.0000256407576
+0.7031484375000	0.0000263576869
+1.0547226562500	0.0000272033865
+1.4062968750000	0.0000282752043
+1.7578710937500	0.0000294655198
+2.1094453125000	0.0000305936499
+2.4610195312500	0.0000315619584
diff --git a/test/GRHydro_test_tov_ppm/ham_norm2.xg b/test/GRHydro_test_tov_ppm/ham_norm2.xg
new file mode 100644
index 0000000..df78f2f
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/ham_norm2.xg
@@ -0,0 +1,9 @@
+"ham v time
+0.0000000000000	0.0000862273844
+0.3515742187500	0.0000866252717
+0.7031484375000	0.0000887427040
+1.0547226562500	0.0000912817970
+1.4062968750000	0.0000936477053
+1.7578710937500	0.0000957392722
+2.1094453125000	0.0000975363202
+2.4610195312500	0.0000990150601
diff --git a/test/GRHydro_test_tov_ppm/ham_x_[16][16].xg b/test/GRHydro_test_tov_ppm/ham_x_[16][16].xg
new file mode 100644
index 0000000..5afea19
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/ham_x_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		-3.0931812090e-05
+-1.3124937500e+01		-4.1098919461e-05
+-1.2187406250e+01		-5.6445568419e-05
+-1.1249875000e+01		-8.0323199902e-05
+-1.0312343750e+01		-1.1880169214e-04
+-9.3748125000e+00		-1.8341459761e-04
+-8.4372812500e+00		-1.6907188376e-05
+-7.4997500000e+00		-7.7706104666e-05
+-6.5622187500e+00		-1.2803895309e-04
+-5.6246875000e+00		-1.6922345771e-04
+-4.6871562500e+00		-2.5236219763e-04
+-3.7496250000e+00		-4.0872794041e-04
+-2.8120937500e+00		-6.6238921516e-04
+-1.8745625000e+00		-9.9201229454e-04
+-9.3703125000e-01		-1.2948317759e-03
+5.0000000000e-04		-1.4208417833e-03
+9.3803125000e-01		-1.2945744648e-03
+1.8755625000e+00		-9.9164850690e-04
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+7.5007500000e+00		-7.7415165655e-05
+8.4382812500e+00		-1.8122568829e-05
+9.3758125000e+00		-1.8332510831e-04
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+1.4063468750e+01		-3.0922960639e-05
+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 3.5157421875e-01
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		1.2896052630e-06
+-1.3124937500e+01		-4.1397380807e-05
+-1.2187406250e+01		-5.6446787872e-05
+-1.1249875000e+01		-8.0324505563e-05
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+-5.6246875000e+00		-1.5301144123e-04
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+-3.7496250000e+00		-3.6998229623e-04
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+-9.3703125000e-01		-1.2381960052e-03
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+8.4382812500e+00		-2.1830956328e-05
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+1.0313343750e+01		-1.1875048480e-04
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+1.4063468750e+01		1.2901436827e-06
+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 7.0314843750e-01
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		1.2234998830e-05
+-1.3124937500e+01		-4.2604557398e-05
+-1.2187406250e+01		-5.6426325153e-05
+-1.1249875000e+01		-8.0481330762e-05
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+-9.3748125000e+00		-1.9516330762e-04
+-8.4372812500e+00		-2.0113429451e-05
+-7.4997500000e+00		-5.4953039370e-05
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+-3.7496250000e+00		-3.2988254841e-04
+-2.8120937500e+00		-5.5426760956e-04
+-1.8745625000e+00		-8.5782969943e-04
+-9.3703125000e-01		-1.1833601394e-03
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+9.3803125000e-01		-1.1832796020e-03
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+7.5007500000e+00		-5.4670587177e-05
+8.4382812500e+00		-2.1436317106e-05
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+1.1250875000e+01		-8.0448861534e-05
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+1.4063468750e+01		1.2232749322e-05
+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 1.0547226562e+00
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		1.7712657544e-05
+-1.3124937500e+01		-4.5058622661e-05
+-1.2187406250e+01		-5.6392341769e-05
+-1.1249875000e+01		-8.0945212865e-05
+-1.0312343750e+01		-1.1948051864e-04
+-9.3748125000e+00		-2.0436503941e-04
+-8.4372812500e+00		-2.2473132644e-05
+-7.4997500000e+00		-3.8715679783e-05
+-6.5622187500e+00		-1.0935411205e-04
+-5.6246875000e+00		-1.1883240506e-04
+-4.6871562500e+00		-1.7108753111e-04
+-3.7496250000e+00		-2.8676345390e-04
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+-1.8745625000e+00		-7.8732617526e-04
+-9.3703125000e-01		-1.1286128659e-03
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+9.3803125000e-01		-1.1286214548e-03
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+3.7506250000e+00		-2.8659755266e-04
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+5.6256875000e+00		-1.1879718483e-04
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+7.5007500000e+00		-3.8403249340e-05
+8.4382812500e+00		-2.3943279174e-05
+9.3758125000e+00		-2.0415508668e-04
+1.0313343750e+01		-1.1942890751e-04
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+1.4063468750e+01		1.7709034237e-05
+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 1.4062968750e+00
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		2.1758716163e-05
+-1.3124937500e+01		-4.8501069041e-05
+-1.2187406250e+01		-5.6560081307e-05
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+-9.3748125000e+00		-2.1182699791e-04
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+-7.4997500000e+00		-1.4774790687e-05
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+-2.8120937500e+00		-4.3190627222e-04
+-1.8745625000e+00		-7.1001013768e-04
+-9.3703125000e-01		-1.0719135775e-03
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+7.5007500000e+00		-1.4426660230e-05
+8.4382812500e+00		-3.5847024024e-05
+9.3758125000e+00		-2.1156828026e-04
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+1.1250875000e+01		-8.1641697467e-05
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+1.3125937500e+01		-4.8486137504e-05
+1.4063468750e+01		2.1754075940e-05
+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 1.7578710937e+00
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		2.5004332575e-05
+-1.3124937500e+01		-5.2237884600e-05
+-1.2187406250e+01		-5.7304466226e-05
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+-1.0312343750e+01		-1.2149410376e-04
+-9.3748125000e+00		-2.1725071395e-04
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+-7.4997500000e+00		1.7838284485e-05
+-6.5622187500e+00		-1.0873477294e-04
+-5.6246875000e+00		-7.5785959265e-05
+-4.6871562500e+00		-1.0200172272e-04
+-3.7496250000e+00		-1.8385561296e-04
+-2.8120937500e+00		-3.6060457121e-04
+-1.8745625000e+00		-6.2313989125e-04
+-9.3703125000e-01		-1.0111733859e-03
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+4.6881562500e+00		-1.0194767965e-04
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+6.5632187500e+00		-1.0887764540e-04
+7.5007500000e+00		1.8214371866e-05
+8.4382812500e+00		-6.0127425768e-05
+9.3758125000e+00		-2.1697805584e-04
+1.0313343750e+01		-1.2143057344e-04
+1.1250875000e+01		-8.2345124444e-05
+1.2188406250e+01		-5.7281669131e-05
+1.3125937500e+01		-5.2221780872e-05
+1.4063468750e+01		2.4998870605e-05
+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 2.1094453125e+00
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		2.7204078043e-05
+-1.3124937500e+01		-5.5400732443e-05
+-1.2187406250e+01		-5.8926643424e-05
+-1.1249875000e+01		-8.2700373553e-05
+-1.0312343750e+01		-1.2335005696e-04
+-9.3748125000e+00		-2.2317439592e-04
+-8.4372812500e+00		-9.2376343042e-05
+-7.4997500000e+00		5.6413440247e-05
+-6.5622187500e+00		-1.1013898397e-04
+-5.6246875000e+00		-5.1764725490e-05
+-4.6871562500e+00		-6.0463974512e-05
+-3.7496250000e+00		-1.2305536628e-04
+-2.8120937500e+00		-2.8366984312e-04
+-1.8745625000e+00		-5.2812490186e-04
+-9.3703125000e-01		-9.4793084037e-04
+5.0000000000e-04		-5.8935697970e-04
+9.3803125000e-01		-9.4826397716e-04
+1.8755625000e+00		-5.2783175147e-04
+2.8130937500e+00		-2.8343540190e-04
+3.7506250000e+00		-1.2295636696e-04
+4.6881562500e+00		-6.0426009305e-05
+5.6256875000e+00		-5.1778657213e-05
+6.5632187500e+00		-1.1034952063e-04
+7.5007500000e+00		5.6794723230e-05
+8.4382812500e+00		-9.4248667409e-05
+9.3758125000e+00		-2.2294465911e-04
+1.0313343750e+01		-1.2327071944e-04
+1.1250875000e+01		-8.2662696311e-05
+1.2188406250e+01		-5.8901735837e-05
+1.3125937500e+01		-5.5383135875e-05
+1.4063468750e+01		2.7198111155e-05
+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 2.4610195312e+00
+-1.5000000000e+01		0.0000000000e+00
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diff --git a/test/GRHydro_test_tov_ppm/ham_y_[16][16].xg b/test/GRHydro_test_tov_ppm/ham_y_[16][16].xg
new file mode 100644
index 0000000..6657695
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/ham_y_[16][16].xg
@@ -0,0 +1,288 @@
+
+
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diff --git a/test/GRHydro_test_tov_ppm/ham_z_[16][16].xg b/test/GRHydro_test_tov_ppm/ham_z_[16][16].xg
new file mode 100644
index 0000000..2c76454
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/ham_z_[16][16].xg
@@ -0,0 +1,288 @@
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+1.4063468750e+01		-3.0922960639e-05
+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 3.5157421875e-01
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		1.2896052602e-06
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+
+
+"Time = 7.0314843750e-01
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+
+
+"Time = 1.0547226562e+00
+-1.5000000000e+01		0.0000000000e+00
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+
+
+"Time = 1.4062968750e+00
+-1.5000000000e+01		0.0000000000e+00
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+
+
+"Time = 1.7578710937e+00
+-1.5000000000e+01		0.0000000000e+00
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+
+
+"Time = 2.1094453125e+00
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+
+
+"Time = 2.4610195312e+00
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+1.4063468750e+01		2.8112976956e-05
+1.5001000000e+01		0.0000000000e+00
diff --git a/test/GRHydro_test_tov_ppm/kxx_maximum.xg b/test/GRHydro_test_tov_ppm/kxx_maximum.xg
new file mode 100644
index 0000000..45849a0
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/kxx_maximum.xg
@@ -0,0 +1,9 @@
+"kxx v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000496886311
+0.7031484375000	0.0000900876246
+1.0547226562500	0.0001228926508
+1.4062968750000	0.0001615545285
+1.7578710937500	0.0001989186828
+2.1094453125000	0.0002333083415
+2.4610195312500	0.0002613531494
diff --git a/test/GRHydro_test_tov_ppm/kxx_minimum.xg b/test/GRHydro_test_tov_ppm/kxx_minimum.xg
new file mode 100644
index 0000000..af1d941
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/kxx_minimum.xg
@@ -0,0 +1,9 @@
+"kxx v time
+0.0000000000000	0.0000000000000
+0.3515742187500	-0.0000200397335
+0.7031484375000	-0.0000396848253
+1.0547226562500	-0.0000522361974
+1.4062968750000	-0.0000498158080
+1.7578710937500	-0.0000427804724
+2.1094453125000	-0.0000517952553
+2.4610195312500	-0.0000559728703
diff --git a/test/GRHydro_test_tov_ppm/kxx_norm1.xg b/test/GRHydro_test_tov_ppm/kxx_norm1.xg
new file mode 100644
index 0000000..1356951
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/kxx_norm1.xg
@@ -0,0 +1,9 @@
+"kxx v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000008593387
+0.7031484375000	0.0000016778689
+1.0547226562500	0.0000024917191
+1.4062968750000	0.0000032502208
+1.7578710937500	0.0000038999937
+2.1094453125000	0.0000044091869
+2.4610195312500	0.0000048705144
diff --git a/test/GRHydro_test_tov_ppm/kxx_norm2.xg b/test/GRHydro_test_tov_ppm/kxx_norm2.xg
new file mode 100644
index 0000000..f4dcfdd
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/kxx_norm2.xg
@@ -0,0 +1,9 @@
+"kxx v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000027696345
+0.7031484375000	0.0000052403733
+1.0547226562500	0.0000075480788
+1.4062968750000	0.0000095654410
+1.7578710937500	0.0000111894485
+2.1094453125000	0.0000125432642
+2.4610195312500	0.0000137506249
diff --git a/test/GRHydro_test_tov_ppm/kxy_maximum.xg b/test/GRHydro_test_tov_ppm/kxy_maximum.xg
new file mode 100644
index 0000000..ab6ec9d
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/kxy_maximum.xg
@@ -0,0 +1,9 @@
+"kxy v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000014511950
+0.7031484375000	0.0000035890759
+1.0547226562500	0.0000077664857
+1.4062968750000	0.0000116684731
+1.7578710937500	0.0000136908484
+2.1094453125000	0.0000126899508
+2.4610195312500	0.0000150428607
diff --git a/test/GRHydro_test_tov_ppm/kxy_minimum.xg b/test/GRHydro_test_tov_ppm/kxy_minimum.xg
new file mode 100644
index 0000000..8d53e8b
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/kxy_minimum.xg
@@ -0,0 +1,9 @@
+"kxy v time
+0.0000000000000	0.0000000000000
+0.3515742187500	-0.0000014513240
+0.7031484375000	-0.0000035799436
+1.0547226562500	-0.0000077488852
+1.4062968750000	-0.0000116387445
+1.7578710937500	-0.0000136623984
+2.1094453125000	-0.0000126749038
+2.4610195312500	-0.0000150251566
diff --git a/test/GRHydro_test_tov_ppm/kxy_norm1.xg b/test/GRHydro_test_tov_ppm/kxy_norm1.xg
new file mode 100644
index 0000000..0214709
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/kxy_norm1.xg
@@ -0,0 +1,9 @@
+"kxy v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000000348829
+0.7031484375000	0.0000000950119
+1.0547226562500	0.0000001843045
+1.4062968750000	0.0000002920505
+1.7578710937500	0.0000004422230
+2.1094453125000	0.0000006367879
+2.4610195312500	0.0000008801786
diff --git a/test/GRHydro_test_tov_ppm/kxy_norm2.xg b/test/GRHydro_test_tov_ppm/kxy_norm2.xg
new file mode 100644
index 0000000..1b68a3f
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/kxy_norm2.xg
@@ -0,0 +1,9 @@
+"kxy v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000001104142
+0.7031484375000	0.0000002998192
+1.0547226562500	0.0000005762579
+1.4062968750000	0.0000008691067
+1.7578710937500	0.0000011696987
+2.1094453125000	0.0000015418916
+2.4610195312500	0.0000020415097
diff --git a/test/GRHydro_test_tov_ppm/kxz_maximum.xg b/test/GRHydro_test_tov_ppm/kxz_maximum.xg
new file mode 100644
index 0000000..01397a2
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/kxz_maximum.xg
@@ -0,0 +1,9 @@
+"kxz v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000014511950
+0.7031484375000	0.0000035890759
+1.0547226562500	0.0000077664857
+1.4062968750000	0.0000116684731
+1.7578710937500	0.0000136908484
+2.1094453125000	0.0000126899508
+2.4610195312500	0.0000150428607
diff --git a/test/GRHydro_test_tov_ppm/kxz_minimum.xg b/test/GRHydro_test_tov_ppm/kxz_minimum.xg
new file mode 100644
index 0000000..f1e96c4
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/kxz_minimum.xg
@@ -0,0 +1,9 @@
+"kxz v time
+0.0000000000000	0.0000000000000
+0.3515742187500	-0.0000014513240
+0.7031484375000	-0.0000035799436
+1.0547226562500	-0.0000077488852
+1.4062968750000	-0.0000116387445
+1.7578710937500	-0.0000136623984
+2.1094453125000	-0.0000126749038
+2.4610195312500	-0.0000150251566
diff --git a/test/GRHydro_test_tov_ppm/kxz_norm1.xg b/test/GRHydro_test_tov_ppm/kxz_norm1.xg
new file mode 100644
index 0000000..6197828
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/kxz_norm1.xg
@@ -0,0 +1,9 @@
+"kxz v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000000348829
+0.7031484375000	0.0000000950120
+1.0547226562500	0.0000001843046
+1.4062968750000	0.0000002920506
+1.7578710937500	0.0000004422231
+2.1094453125000	0.0000006367879
+2.4610195312500	0.0000008801786
diff --git a/test/GRHydro_test_tov_ppm/kxz_norm2.xg b/test/GRHydro_test_tov_ppm/kxz_norm2.xg
new file mode 100644
index 0000000..cb2b58e
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/kxz_norm2.xg
@@ -0,0 +1,9 @@
+"kxz v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000001104142
+0.7031484375000	0.0000002998192
+1.0547226562500	0.0000005762579
+1.4062968750000	0.0000008691067
+1.7578710937500	0.0000011696987
+2.1094453125000	0.0000015418916
+2.4610195312500	0.0000020415097
diff --git a/test/GRHydro_test_tov_ppm/kyy_maximum.xg b/test/GRHydro_test_tov_ppm/kyy_maximum.xg
new file mode 100644
index 0000000..9e023be
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/kyy_maximum.xg
@@ -0,0 +1,9 @@
+"kyy v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000496886311
+0.7031484375000	0.0000900876246
+1.0547226562500	0.0001228926508
+1.4062968750000	0.0001615545285
+1.7578710937500	0.0001989186828
+2.1094453125000	0.0002333083415
+2.4610195312500	0.0002613531494
diff --git a/test/GRHydro_test_tov_ppm/kyy_minimum.xg b/test/GRHydro_test_tov_ppm/kyy_minimum.xg
new file mode 100644
index 0000000..f54b021
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/kyy_minimum.xg
@@ -0,0 +1,9 @@
+"kyy v time
+0.0000000000000	0.0000000000000
+0.3515742187500	-0.0000200397335
+0.7031484375000	-0.0000396848253
+1.0547226562500	-0.0000522361974
+1.4062968750000	-0.0000498158080
+1.7578710937500	-0.0000427804724
+2.1094453125000	-0.0000517952553
+2.4610195312500	-0.0000559728703
diff --git a/test/GRHydro_test_tov_ppm/kyy_norm1.xg b/test/GRHydro_test_tov_ppm/kyy_norm1.xg
new file mode 100644
index 0000000..49f77d5
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/kyy_norm1.xg
@@ -0,0 +1,9 @@
+"kyy v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000008593371
+0.7031484375000	0.0000016778677
+1.0547226562500	0.0000024917214
+1.4062968750000	0.0000032502253
+1.7578710937500	0.0000038999970
+2.1094453125000	0.0000044091865
+2.4610195312500	0.0000048705106
diff --git a/test/GRHydro_test_tov_ppm/kyy_norm2.xg b/test/GRHydro_test_tov_ppm/kyy_norm2.xg
new file mode 100644
index 0000000..4dc657a
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/kyy_norm2.xg
@@ -0,0 +1,9 @@
+"kyy v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000027696345
+0.7031484375000	0.0000052403733
+1.0547226562500	0.0000075480788
+1.4062968750000	0.0000095654411
+1.7578710937500	0.0000111894486
+2.1094453125000	0.0000125432642
+2.4610195312500	0.0000137506248
diff --git a/test/GRHydro_test_tov_ppm/kyz_maximum.xg b/test/GRHydro_test_tov_ppm/kyz_maximum.xg
new file mode 100644
index 0000000..5de0d75
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/kyz_maximum.xg
@@ -0,0 +1,9 @@
+"kyz v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000014511950
+0.7031484375000	0.0000035890759
+1.0547226562500	0.0000077664857
+1.4062968750000	0.0000116684731
+1.7578710937500	0.0000136908484
+2.1094453125000	0.0000126899508
+2.4610195312500	0.0000150428607
diff --git a/test/GRHydro_test_tov_ppm/kyz_minimum.xg b/test/GRHydro_test_tov_ppm/kyz_minimum.xg
new file mode 100644
index 0000000..079a343
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/kyz_minimum.xg
@@ -0,0 +1,9 @@
+"kyz v time
+0.0000000000000	0.0000000000000
+0.3515742187500	-0.0000014513240
+0.7031484375000	-0.0000035799436
+1.0547226562500	-0.0000077488852
+1.4062968750000	-0.0000116387445
+1.7578710937500	-0.0000136623984
+2.1094453125000	-0.0000126749038
+2.4610195312500	-0.0000150251566
diff --git a/test/GRHydro_test_tov_ppm/kyz_norm1.xg b/test/GRHydro_test_tov_ppm/kyz_norm1.xg
new file mode 100644
index 0000000..cbac08d
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/kyz_norm1.xg
@@ -0,0 +1,9 @@
+"kyz v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000000348829
+0.7031484375000	0.0000000950121
+1.0547226562500	0.0000001843047
+1.4062968750000	0.0000002920507
+1.7578710937500	0.0000004422232
+2.1094453125000	0.0000006367880
+2.4610195312500	0.0000008801786
diff --git a/test/GRHydro_test_tov_ppm/kyz_norm2.xg b/test/GRHydro_test_tov_ppm/kyz_norm2.xg
new file mode 100644
index 0000000..3fc33ca
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/kyz_norm2.xg
@@ -0,0 +1,9 @@
+"kyz v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000001104142
+0.7031484375000	0.0000002998192
+1.0547226562500	0.0000005762579
+1.4062968750000	0.0000008691067
+1.7578710937500	0.0000011696987
+2.1094453125000	0.0000015418916
+2.4610195312500	0.0000020415097
diff --git a/test/GRHydro_test_tov_ppm/kzz_maximum.xg b/test/GRHydro_test_tov_ppm/kzz_maximum.xg
new file mode 100644
index 0000000..23eeff1
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/kzz_maximum.xg
@@ -0,0 +1,9 @@
+"kzz v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000496886311
+0.7031484375000	0.0000900876246
+1.0547226562500	0.0001228926508
+1.4062968750000	0.0001615545285
+1.7578710937500	0.0001989186828
+2.1094453125000	0.0002333083415
+2.4610195312500	0.0002613531494
diff --git a/test/GRHydro_test_tov_ppm/kzz_minimum.xg b/test/GRHydro_test_tov_ppm/kzz_minimum.xg
new file mode 100644
index 0000000..e13e0be
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/kzz_minimum.xg
@@ -0,0 +1,9 @@
+"kzz v time
+0.0000000000000	0.0000000000000
+0.3515742187500	-0.0000200397335
+0.7031484375000	-0.0000396848253
+1.0547226562500	-0.0000522361974
+1.4062968750000	-0.0000498158080
+1.7578710937500	-0.0000427804724
+2.1094453125000	-0.0000517952553
+2.4610195312500	-0.0000559728703
diff --git a/test/GRHydro_test_tov_ppm/kzz_norm1.xg b/test/GRHydro_test_tov_ppm/kzz_norm1.xg
new file mode 100644
index 0000000..dc2d4d7
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/kzz_norm1.xg
@@ -0,0 +1,9 @@
+"kzz v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000008593355
+0.7031484375000	0.0000016778665
+1.0547226562500	0.0000024917238
+1.4062968750000	0.0000032502299
+1.7578710937500	0.0000039000003
+2.1094453125000	0.0000044091862
+2.4610195312500	0.0000048705068
diff --git a/test/GRHydro_test_tov_ppm/kzz_norm2.xg b/test/GRHydro_test_tov_ppm/kzz_norm2.xg
new file mode 100644
index 0000000..7201b11
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/kzz_norm2.xg
@@ -0,0 +1,9 @@
+"kzz v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000027696345
+0.7031484375000	0.0000052403732
+1.0547226562500	0.0000075480788
+1.4062968750000	0.0000095654411
+1.7578710937500	0.0000111894486
+2.1094453125000	0.0000125432642
+2.4610195312500	0.0000137506248
diff --git a/test/GRHydro_test_tov_ppm/momx_3D_diagonal.xg b/test/GRHydro_test_tov_ppm/momx_3D_diagonal.xg
new file mode 100644
index 0000000..ed5b60c
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/momx_3D_diagonal.xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		0.0000000000e+00
+-2.2733058596e+01		0.0000000000e+00
+-2.1109206837e+01		0.0000000000e+00
+-1.9485355079e+01		0.0000000000e+00
+-1.7861503320e+01		0.0000000000e+00
+-1.6237651561e+01		0.0000000000e+00
+-1.4613799803e+01		0.0000000000e+00
+-1.2989948044e+01		0.0000000000e+00
+-1.1366096285e+01		0.0000000000e+00
+-9.7422445267e+00		0.0000000000e+00
+-8.1183927680e+00		0.0000000000e+00
+-6.4945410093e+00		0.0000000000e+00
+-4.8706892506e+00		0.0000000000e+00
+-3.2468374920e+00		0.0000000000e+00
+-1.6229857333e+00		0.0000000000e+00
+8.6602540378e-04		0.0000000000e+00
+1.6247177841e+00		0.0000000000e+00
+3.2485695428e+00		0.0000000000e+00
+4.8724213015e+00		0.0000000000e+00
+6.4962730601e+00		0.0000000000e+00
+8.1201248188e+00		0.0000000000e+00
+9.7439765775e+00		0.0000000000e+00
+1.1367828336e+01		0.0000000000e+00
+1.2991680095e+01		0.0000000000e+00
+1.4615531854e+01		0.0000000000e+00
+1.6239383612e+01		0.0000000000e+00
+1.7863235371e+01		0.0000000000e+00
+1.9487087130e+01		0.0000000000e+00
+2.1110938888e+01		0.0000000000e+00
+2.2734790647e+01		0.0000000000e+00
+2.4358642406e+01		0.0000000000e+00
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 3.5157421875e-01
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		-1.1500484473e-08
+-2.2733058596e+01		3.5353046438e-09
+-2.1109206837e+01		1.7501125516e-08
+-1.9485355079e+01		2.7803072155e-08
+-1.7861503320e+01		4.5445451733e-08
+-1.6237651561e+01		7.7778848790e-08
+-1.4613799803e+01		1.4058498863e-07
+-1.2989948044e+01		2.7141762575e-07
+-1.1366096285e+01		5.6850028388e-07
+-9.7422445267e+00		1.1692004450e-06
+-8.1183927680e+00		-4.0798905875e-07
+-6.4945410093e+00		-3.3707140943e-07
+-4.8706892506e+00		-2.5394975788e-06
+-3.2468374920e+00		-5.7121429473e-06
+-1.6229857333e+00		-4.2999738207e-07
+8.6602540378e-04		5.2007748697e-08
+1.6247177841e+00		3.9267521416e-07
+3.2485695428e+00		5.7093078491e-06
+4.8724213015e+00		2.5365173698e-06
+6.4962730601e+00		3.3752660573e-07
+8.1201248188e+00		3.9529936605e-07
+9.7439765775e+00		-1.1696760393e-06
+1.1367828336e+01		-5.6803152797e-07
+1.2991680095e+01		-2.7122181286e-07
+1.4615531854e+01		-1.4048844300e-07
+1.6239383612e+01		-7.7735621610e-08
+1.7863235371e+01		-4.5422758622e-08
+1.9487087130e+01		-2.7790612264e-08
+2.1110938888e+01		-1.7494464792e-08
+2.2734790647e+01		-3.5327555603e-09
+2.4358642406e+01		1.1499936374e-08
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 7.0314843750e-01
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		-2.7255656098e-08
+-2.2733058596e+01		6.5077924330e-10
+-2.1109206837e+01		3.5019558708e-08
+-1.9485355079e+01		5.4935381224e-08
+-1.7861503320e+01		9.0863536787e-08
+-1.6237651561e+01		1.5556683138e-07
+-1.4613799803e+01		2.8121563619e-07
+-1.2989948044e+01		5.4307662442e-07
+-1.1366096285e+01		1.1381482561e-06
+-9.7422445267e+00		2.6421385023e-06
+-8.1183927680e+00		3.9802923456e-07
+-6.4945410093e+00		-1.1129875103e-06
+-4.8706892506e+00		-5.0528405557e-06
+-3.2468374920e+00		-1.1544657278e-05
+-1.6229857333e+00		-8.7131693326e-07
+8.6602540378e-04		9.6988555231e-08
+1.6247177841e+00		8.0256385054e-07
+3.2485695428e+00		1.1540025378e-05
+4.8724213015e+00		5.0467563699e-06
+6.4962730601e+00		1.1189317563e-06
+8.1201248188e+00		-4.2243066794e-07
+9.7439765775e+00		-2.6470314355e-06
+1.1367828336e+01		-1.1371885853e-06
+1.2991680095e+01		-5.4267772127e-07
+1.4615531854e+01		-2.8102857228e-07
+1.6239383612e+01		-1.5547108317e-07
+1.7863235371e+01		-9.0809236957e-08
+1.9487087130e+01		-5.4910225275e-08
+2.1110938888e+01		-3.5004005133e-08
+2.2734790647e+01		-6.4743641956e-10
+2.4358642406e+01		2.7250651338e-08
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 1.0547226562e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		-4.6085099536e-08
+-2.2733058596e+01		-2.7607341443e-09
+-2.1109206837e+01		5.1810786193e-08
+-1.9485355079e+01		8.1303172763e-08
+-1.7861503320e+01		1.3593188375e-07
+-1.6237651561e+01		2.3334084739e-07
+-1.4613799803e+01		4.2193037672e-07
+-1.2989948044e+01		8.1518121675e-07
+-1.1366096285e+01		1.7080015490e-06
+-9.7422445267e+00		5.9597737901e-06
+-8.1183927680e+00		1.7643765589e-06
+-6.4945410093e+00		-4.2850359747e-06
+-4.8706892506e+00		-7.4961215456e-06
+-3.2468374920e+00		-1.7520545576e-05
+-1.6229857333e+00		-1.1484494112e-06
+8.6602540378e-04		1.3426544675e-07
+1.6247177841e+00		1.0538717199e-06
+3.2485695428e+00		1.7516187370e-05
+4.8724213015e+00		7.4866614262e-06
+6.4962730601e+00		4.3004621074e-06
+8.1201248188e+00		-1.7965923672e-06
+9.7439765775e+00		-5.9702714585e-06
+1.1367828336e+01		-1.7065558321e-06
+1.2991680095e+01		-8.1457177662e-07
+1.4615531854e+01		-4.2165036479e-07
+1.6239383612e+01		-2.3319847876e-07
+1.7863235371e+01		-1.3585267111e-07
+1.9487087130e+01		-8.1260106214e-08
+2.1110938888e+01		-5.1785930223e-08
+2.2734790647e+01		2.7632718071e-09
+2.4358642406e+01		4.6074358519e-08
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 1.4062968750e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		-6.0954160354e-08
+-2.2733058596e+01		-5.2594522817e-09
+-2.1109206837e+01		6.6524693688e-08
+-1.9485355079e+01		1.0737590560e-07
+-1.7861503320e+01		1.8012130245e-07
+-1.6237651561e+01		3.1094167341e-07
+-1.4613799803e+01		5.6273998777e-07
+-1.2989948044e+01		1.0878766616e-06
+-1.1366096285e+01		2.2427524872e-06
+-9.7422445267e+00		9.9972940515e-06
+-8.1183927680e+00		2.8411229382e-06
+-6.4945410093e+00		-9.2461236922e-06
+-4.8706892506e+00		-9.8240676390e-06
+-3.2468374920e+00		-2.3475806256e-05
+-1.6229857333e+00		-1.2720191870e-06
+8.6602540378e-04		1.7609415985e-07
+1.6247177841e+00		1.1257735875e-06
+3.2485695428e+00		2.3487802731e-05
+4.8724213015e+00		9.8109407065e-06
+6.4962730601e+00		9.2701573905e-06
+8.1201248188e+00		-2.8785299740e-06
+9.7439765775e+00		-1.0011218690e-05
+1.1367828336e+01		-2.2410268376e-06
+1.2991680095e+01		-1.0870604212e-06
+1.4615531854e+01		-5.6236536782e-07
+1.6239383612e+01		-3.1075612597e-07
+1.7863235371e+01		-1.8002316261e-07
+1.9487087130e+01		-1.0731813022e-07
+2.1110938888e+01		-6.6492710702e-08
+2.2734790647e+01		5.2622136751e-09
+2.4358642406e+01		6.0939034514e-08
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 1.7578710937e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		-6.8449188567e-08
+-2.2733058596e+01		-6.4580109347e-09
+-2.1109206837e+01		7.7961594956e-08
+-1.9485355079e+01		1.3211614531e-07
+-1.7861503320e+01		2.2312607313e-07
+-1.6237651561e+01		3.8794031661e-07
+-1.4613799803e+01		7.0356956468e-07
+-1.2989948044e+01		1.3612069992e-06
+-1.1366096285e+01		2.7294041072e-06
+-9.7422445267e+00		1.2125162145e-05
+-8.1183927680e+00		3.6225061243e-06
+-6.4945410093e+00		-1.3004124910e-05
+-4.8706892506e+00		-1.2058469398e-05
+-3.2468374920e+00		-2.9195882713e-05
+-1.6229857333e+00		-1.4117895204e-06
+8.6602540378e-04		2.0962649004e-07
+1.6247177841e+00		1.2209345109e-06
+3.2485695428e+00		2.9225692638e-05
+4.8724213015e+00		1.2042032930e-05
+6.4962730601e+00		1.3026095995e-05
+8.1201248188e+00		-3.6592227483e-06
+9.7439765775e+00		-1.2134263528e-05
+1.1367828336e+01		-2.7276771858e-06
+1.2991680095e+01		-1.3601938259e-06
+1.4615531854e+01		-7.0310196579e-07
+1.6239383612e+01		-3.8770843402e-07
+1.7863235371e+01		-2.2300570898e-07
+1.9487087130e+01		-1.3204828682e-07
+2.1110938888e+01		-7.7924924176e-08
+2.2734790647e+01		6.4624322276e-09
+2.4358642406e+01		6.8432450477e-08
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 2.1094453125e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		-6.6644211617e-08
+-2.2733058596e+01		-6.2061917793e-09
+-2.1109206837e+01		8.5490604107e-08
+-1.9485355079e+01		1.5765546802e-07
+-1.7861503320e+01		2.6313635496e-07
+-1.6237651561e+01		4.6370210128e-07
+-1.4613799803e+01		8.4413254056e-07
+-1.2989948044e+01		1.6337186517e-06
+-1.1366096285e+01		3.3707282671e-06
+-9.7422445267e+00		1.1604400885e-05
+-8.1183927680e+00		4.6182318943e-06
+-6.4945410093e+00		-1.3568035881e-05
+-4.8706892506e+00		-1.4419780776e-05
+-3.2468374920e+00		-3.4326846119e-05
+-1.6229857333e+00		-1.5123516746e-06
+8.6602540378e-04		2.1770432288e-07
+1.6247177841e+00		1.2874271237e-06
+3.2485695428e+00		3.4381901849e-05
+4.8724213015e+00		1.4401051387e-05
+6.4962730601e+00		1.3566772915e-05
+8.1201248188e+00		-4.6637190809e-06
+9.7439765775e+00		-1.1594824261e-05
+1.1367828336e+01		-3.3683695262e-06
+1.2991680095e+01		-1.6325166649e-06
+1.4615531854e+01		-8.4357181727e-07
+1.6239383612e+01		-4.6342250925e-07
+1.7863235371e+01		-2.6299108917e-07
+1.9487087130e+01		-1.5757573816e-07
+2.1110938888e+01		-8.5448973138e-08
+2.2734790647e+01		6.2125577341e-09
+2.4358642406e+01		6.6629379234e-08
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 2.4610195312e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		-5.6184225730e-08
+-2.2733058596e+01		-4.0175428217e-09
+-2.1109206837e+01		8.9432688207e-08
+-1.9485355079e+01		1.8881718972e-07
+-1.7861503320e+01		3.0355654496e-07
+-1.6237651561e+01		5.3517701257e-07
+-1.4613799803e+01		9.8382044414e-07
+-1.2989948044e+01		1.8960867892e-06
+-1.1366096285e+01		4.4374870892e-06
+-9.7422445267e+00		9.8909836995e-06
+-8.1183927680e+00		5.7226033225e-06
+-6.4945410093e+00		-1.1786553386e-05
+-4.8706892506e+00		-1.7324174150e-05
+-3.2468374920e+00		-3.8386603533e-05
+-1.6229857333e+00		-1.7425565554e-06
+8.6602540378e-04		2.5594891668e-07
+1.6247177841e+00		1.4633587405e-06
+3.2485695428e+00		3.8464163112e-05
+4.8724213015e+00		1.7304112745e-05
+6.4962730601e+00		1.1744793881e-05
+8.1201248188e+00		-5.7896440238e-06
+9.7439765775e+00		-9.8539672177e-06
+1.1367828336e+01		-4.4327714715e-06
+1.2991680095e+01		-1.8947420018e-06
+1.4615531854e+01		-9.8316413310e-07
+1.6239383612e+01		-5.3485172764e-07
+1.7863235371e+01		-3.0338759233e-07
+1.9487087130e+01		-1.8872263860e-07
+2.1110938888e+01		-8.9385188791e-08
+2.2734790647e+01		4.0266910571e-09
+2.4358642406e+01		5.6174883881e-08
+2.5982494164e+01		0.0000000000e+00
diff --git a/test/GRHydro_test_tov_ppm/momx_maximum.xg b/test/GRHydro_test_tov_ppm/momx_maximum.xg
new file mode 100644
index 0000000..e31ade6
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/momx_maximum.xg
@@ -0,0 +1,9 @@
+"momx v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000152415965
+0.7031484375000	0.0000243496852
+1.0547226562500	0.0000299347076
+1.4062968750000	0.0000346939402
+1.7578710937500	0.0000427176095
+2.1094453125000	0.0000503764517
+2.4610195312500	0.0000571873435
diff --git a/test/GRHydro_test_tov_ppm/momx_minimum.xg b/test/GRHydro_test_tov_ppm/momx_minimum.xg
new file mode 100644
index 0000000..b129f30
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/momx_minimum.xg
@@ -0,0 +1,9 @@
+"momx v time
+0.0000000000000	0.0000000000000
+0.3515742187500	-0.0000152832438
+0.7031484375000	-0.0000243857468
+1.0547226562500	-0.0000299945313
+1.4062968750000	-0.0000346635940
+1.7578710937500	-0.0000426592270
+2.1094453125000	-0.0000502766919
+2.4610195312500	-0.0000570552652
diff --git a/test/GRHydro_test_tov_ppm/momx_norm1.xg b/test/GRHydro_test_tov_ppm/momx_norm1.xg
new file mode 100644
index 0000000..679dcfb
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/momx_norm1.xg
@@ -0,0 +1,9 @@
+"momx v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000004745413
+0.7031484375000	0.0000008822271
+1.0547226562500	0.0000012145249
+1.4062968750000	0.0000014956811
+1.7578710937500	0.0000017051808
+2.1094453125000	0.0000019126043
+2.4610195312500	0.0000021191178
diff --git a/test/GRHydro_test_tov_ppm/momx_norm2.xg b/test/GRHydro_test_tov_ppm/momx_norm2.xg
new file mode 100644
index 0000000..f2ebca3
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/momx_norm2.xg
@@ -0,0 +1,9 @@
+"momx v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000015180029
+0.7031484375000	0.0000025320845
+1.0547226562500	0.0000033045474
+1.4062968750000	0.0000039343704
+1.7578710937500	0.0000043900603
+2.1094453125000	0.0000047515282
+2.4610195312500	0.0000051165222
diff --git a/test/GRHydro_test_tov_ppm/momx_x_[16][16].xg b/test/GRHydro_test_tov_ppm/momx_x_[16][16].xg
new file mode 100644
index 0000000..fd126ed
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/momx_x_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		0.0000000000e+00
+-1.3124937500e+01		0.0000000000e+00
+-1.2187406250e+01		0.0000000000e+00
+-1.1249875000e+01		0.0000000000e+00
+-1.0312343750e+01		0.0000000000e+00
+-9.3748125000e+00		0.0000000000e+00
+-8.4372812500e+00		0.0000000000e+00
+-7.4997500000e+00		0.0000000000e+00
+-6.5622187500e+00		0.0000000000e+00
+-5.6246875000e+00		0.0000000000e+00
+-4.6871562500e+00		0.0000000000e+00
+-3.7496250000e+00		0.0000000000e+00
+-2.8120937500e+00		0.0000000000e+00
+-1.8745625000e+00		0.0000000000e+00
+-9.3703125000e-01		0.0000000000e+00
+5.0000000000e-04		0.0000000000e+00
+9.3803125000e-01		0.0000000000e+00
+1.8755625000e+00		0.0000000000e+00
+2.8130937500e+00		0.0000000000e+00
+3.7506250000e+00		0.0000000000e+00
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+5.6256875000e+00		0.0000000000e+00
+6.5632187500e+00		0.0000000000e+00
+7.5007500000e+00		0.0000000000e+00
+8.4382812500e+00		0.0000000000e+00
+9.3758125000e+00		0.0000000000e+00
+1.0313343750e+01		0.0000000000e+00
+1.1250875000e+01		0.0000000000e+00
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+1.3125937500e+01		0.0000000000e+00
+1.4063468750e+01		0.0000000000e+00
+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 3.5157421875e-01
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		-7.3292636545e-07
+-1.3124937500e+01		-1.2545606941e-06
+-1.2187406250e+01		-1.1046037762e-06
+-1.1249875000e+01		-1.6963551236e-06
+-1.0312343750e+01		-2.8330825361e-06
+-9.3748125000e+00		2.5199738903e-06
+-8.4372812500e+00		4.1290861434e-06
+-7.4997500000e+00		-9.0511719577e-07
+-6.5622187500e+00		3.9078084937e-07
+-5.6246875000e+00		5.4484326343e-07
+-4.6871562500e+00		-5.3687218934e-07
+-3.7496250000e+00		-3.1662160286e-06
+-2.8120937500e+00		-6.8848224136e-06
+-1.8745625000e+00		-9.2646632237e-06
+-9.3703125000e-01		-2.4679594891e-07
+5.0000000000e-04		5.2007748697e-08
+9.3803125000e-01		2.0344897672e-07
+1.8755625000e+00		9.2642256105e-06
+2.8130937500e+00		6.8809156382e-06
+3.7506250000e+00		3.1626110293e-06
+4.6881562500e+00		5.3499224404e-07
+5.6256875000e+00		-5.4557281051e-07
+6.5632187500e+00		-3.8499539616e-07
+7.5007500000e+00		8.7814530590e-07
+8.4382812500e+00		-4.1349551682e-06
+9.3758125000e+00		-2.4860624167e-06
+1.0313343750e+01		2.8313124903e-06
+1.1250875000e+01		1.6957175962e-06
+1.2188406250e+01		1.1040857284e-06
+1.3125937500e+01		1.2541128396e-06
+1.4063468750e+01		7.3268725277e-07
+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 7.0314843750e-01
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		-2.2463105337e-06
+-1.3124937500e+01		-3.0158408162e-06
+-1.2187406250e+01		-2.1754538897e-06
+-1.1249875000e+01		-3.2747873652e-06
+-1.0312343750e+01		-5.4361455836e-06
+-9.3748125000e+00		3.9255143411e-06
+-8.4372812500e+00		8.3308665578e-06
+-7.4997500000e+00		-7.3962745335e-07
+-6.5622187500e+00		9.2958725307e-07
+-5.6246875000e+00		1.3947943431e-06
+-4.6871562500e+00		-7.0571393434e-07
+-3.7496250000e+00		-5.7983120775e-06
+-2.8120937500e+00		-1.3068283224e-05
+-1.8745625000e+00		-1.8001338314e-05
+-9.3703125000e-01		-1.9048037225e-07
+5.0000000000e-04		9.6988555231e-08
+9.3803125000e-01		1.0986179894e-07
+1.8755625000e+00		1.8001161791e-05
+2.8130937500e+00		1.3060242841e-05
+3.7506250000e+00		5.7913119862e-06
+4.6881562500e+00		7.0213037556e-07
+5.6256875000e+00		-1.3967333271e-06
+6.5632187500e+00		-9.1781587232e-07
+7.5007500000e+00		6.8908647393e-07
+8.4382812500e+00		-8.3412457871e-06
+9.3758125000e+00		-3.8631214912e-06
+1.0313343750e+01		5.4325199033e-06
+1.1250875000e+01		3.2741255068e-06
+1.2188406250e+01		2.1744896147e-06
+1.3125937500e+01		3.0148196510e-06
+1.4063468750e+01		2.2456243959e-06
+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 1.0547226562e+00
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		-4.2989944990e-06
+-1.3124937500e+01		-4.8652819741e-06
+-1.2187406250e+01		-3.2144443159e-06
+-1.1249875000e+01		-4.7686001527e-06
+-1.0312343750e+01		-7.4371847712e-06
+-9.3748125000e+00		3.6765049780e-06
+-8.4372812500e+00		1.2246417646e-05
+-7.4997500000e+00		9.4900242562e-07
+-6.5622187500e+00		1.3364439099e-06
+-5.6246875000e+00		2.3450474210e-06
+-4.6871562500e+00		-8.8157571209e-07
+-3.7496250000e+00		-8.2615965322e-06
+-2.8120937500e+00		-1.8754579920e-05
+-1.8745625000e+00		-2.6411869732e-05
+-9.3703125000e-01		2.4020376006e-08
+5.0000000000e-04		1.3426544675e-07
+9.3803125000e-01		-1.3565563204e-07
+1.8755625000e+00		2.6413988924e-05
+2.8130937500e+00		1.8741971977e-05
+3.7506250000e+00		8.2514506659e-06
+4.6881562500e+00		8.7628431626e-07
+5.6256875000e+00		-2.3483482288e-06
+6.5632187500e+00		-1.3198664297e-06
+7.5007500000e+00		-1.0150405770e-06
+8.4382812500e+00		-1.2260848712e-05
+9.3758125000e+00		-3.5962734463e-06
+1.0313343750e+01		7.4336088269e-06
+1.1250875000e+01		4.7679198384e-06
+1.2188406250e+01		3.2133226919e-06
+1.3125937500e+01		4.8636834345e-06
+1.4063468750e+01		4.2977234112e-06
+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 1.4062968750e+00
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		-6.3699971888e-06
+-1.3124937500e+01		-6.5918128059e-06
+-1.2187406250e+01		-4.3060596890e-06
+-1.1249875000e+01		-6.2543874836e-06
+-1.0312343750e+01		-8.5107138318e-06
+-9.3748125000e+00		1.7997792584e-06
+-8.4372812500e+00		1.5829938223e-05
+-7.4997500000e+00		4.2045952135e-06
+-6.5622187500e+00		1.0239575522e-06
+-5.6246875000e+00		3.1520951298e-06
+-4.6871562500e+00		-1.4529164296e-06
+-3.7496250000e+00		-1.1009318957e-05
+-2.8120937500e+00		-2.4321364907e-05
+-1.8745625000e+00		-3.4663594046e-05
+-9.3703125000e-01		1.1574821567e-08
+5.0000000000e-04		1.7609415985e-07
+9.3803125000e-01		-1.8301493701e-07
+1.8755625000e+00		3.4693940233e-05
+2.8130937500e+00		2.4303924893e-05
+3.7506250000e+00		1.0996186485e-05
+4.6881562500e+00		1.4456166857e-06
+5.6256875000e+00		-3.1560592773e-06
+6.5632187500e+00		-1.0045964096e-06
+7.5007500000e+00		-4.2728249308e-06
+8.4382812500e+00		-1.5851038833e-05
+9.3758125000e+00		-1.7172536456e-06
+1.0313343750e+01		8.5118839984e-06
+1.1250875000e+01		6.2527174157e-06
+1.2188406250e+01		4.3050927466e-06
+1.3125937500e+01		6.5897591650e-06
+1.4063468750e+01		6.3681328740e-06
+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 1.7578710937e+00
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		-8.0459689033e-06
+-1.3124937500e+01		-8.0669245118e-06
+-1.2187406250e+01		-5.5944009981e-06
+-1.1249875000e+01		-7.7072053100e-06
+-1.0312343750e+01		-8.5684410155e-06
+-9.3748125000e+00		-8.0249796158e-07
+-8.4372812500e+00		1.9525717143e-05
+-7.4997500000e+00		8.4388632603e-06
+-6.5622187500e+00		-6.3366570955e-07
+-5.6246875000e+00		3.4217045100e-06
+-4.6871562500e+00		-2.6273255388e-06
+-3.7496250000e+00		-1.4377946710e-05
+-2.8120937500e+00		-3.0144747196e-05
+-1.8745625000e+00		-4.2659226962e-05
+-9.3703125000e-01		-8.7019910308e-07
+5.0000000000e-04		2.0962649004e-07
+9.3803125000e-01		6.4849307053e-07
+1.8755625000e+00		4.2717609523e-05
+2.8130937500e+00		3.0122419483e-05
+3.7506250000e+00		1.4361727061e-05
+4.6881562500e+00		2.6175094858e-06
+5.6256875000e+00		-3.4240515861e-06
+6.5632187500e+00		6.5484608968e-07
+7.5007500000e+00		-8.4926674089e-06
+8.4382812500e+00		-1.9559714483e-05
+9.3758125000e+00		8.6783519599e-07
+1.0313343750e+01		8.5804801717e-06
+1.1250875000e+01		7.7034306835e-06
+1.2188406250e+01		5.5934744840e-06
+1.3125937500e+01		8.0646596740e-06
+1.4063468750e+01		8.0436190174e-06
+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 2.1094453125e+00
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		-9.0646906731e-06
+-1.3124937500e+01		-9.2237629249e-06
+-1.2187406250e+01		-7.1928898759e-06
+-1.1249875000e+01		-8.9432633526e-06
+-1.0312343750e+01		-7.7479364757e-06
+-9.3748125000e+00		-2.3069920762e-06
+-8.4372812500e+00		2.3619740460e-05
+-7.4997500000e+00		1.2528264482e-05
+-6.5622187500e+00		-3.5795104524e-06
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diff --git a/test/GRHydro_test_tov_ppm/momx_y_[16][16].xg b/test/GRHydro_test_tov_ppm/momx_y_[16][16].xg
new file mode 100644
index 0000000..dc85bb3
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/momx_y_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
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diff --git a/test/GRHydro_test_tov_ppm/momx_z_[16][16].xg b/test/GRHydro_test_tov_ppm/momx_z_[16][16].xg
new file mode 100644
index 0000000..47aa271
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/momx_z_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
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+
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diff --git a/test/GRHydro_test_tov_ppm/momy_3D_diagonal.xg b/test/GRHydro_test_tov_ppm/momy_3D_diagonal.xg
new file mode 100644
index 0000000..8d8866b
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/momy_3D_diagonal.xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
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+2.2734790647e+01		-6.4743643275e-10
+2.4358642406e+01		2.7250651354e-08
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 1.0547226562e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		-4.6085099542e-08
+-2.2733058596e+01		-2.7607341377e-09
+-2.1109206837e+01		5.1810786186e-08
+-1.9485355079e+01		8.1303172763e-08
+-1.7861503320e+01		1.3593188375e-07
+-1.6237651561e+01		2.3334084738e-07
+-1.4613799803e+01		4.2193037672e-07
+-1.2989948044e+01		8.1518121674e-07
+-1.1366096285e+01		1.7080015491e-06
+-9.7422445267e+00		5.9597737902e-06
+-8.1183927680e+00		1.7643765589e-06
+-6.4945410093e+00		-4.2850359747e-06
+-4.8706892506e+00		-7.4961215456e-06
+-3.2468374920e+00		-1.7520545576e-05
+-1.6229857333e+00		-1.1484494112e-06
+8.6602540378e-04		1.3426544675e-07
+1.6247177841e+00		1.0538717199e-06
+3.2485695428e+00		1.7516187370e-05
+4.8724213015e+00		7.4866614262e-06
+6.4962730601e+00		4.3004621074e-06
+8.1201248188e+00		-1.7965923672e-06
+9.7439765775e+00		-5.9702714585e-06
+1.1367828336e+01		-1.7065558321e-06
+1.2991680095e+01		-8.1457177663e-07
+1.4615531854e+01		-4.2165036478e-07
+1.6239383612e+01		-2.3319847876e-07
+1.7863235371e+01		-1.3585267110e-07
+1.9487087130e+01		-8.1260106227e-08
+2.1110938888e+01		-5.1785930216e-08
+2.2734790647e+01		2.7632717807e-09
+2.4358642406e+01		4.6074358551e-08
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 1.4062968750e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		-6.0954160363e-08
+-2.2733058596e+01		-5.2594523015e-09
+-2.1109206837e+01		6.6524693675e-08
+-1.9485355079e+01		1.0737590560e-07
+-1.7861503320e+01		1.8012130245e-07
+-1.6237651561e+01		3.1094167344e-07
+-1.4613799803e+01		5.6273998777e-07
+-1.2989948044e+01		1.0878766616e-06
+-1.1366096285e+01		2.2427524873e-06
+-9.7422445267e+00		9.9972940515e-06
+-8.1183927680e+00		2.8411229383e-06
+-6.4945410093e+00		-9.2461236922e-06
+-4.8706892506e+00		-9.8240676390e-06
+-3.2468374920e+00		-2.3475806256e-05
+-1.6229857333e+00		-1.2720191870e-06
+8.6602540378e-04		1.7609415984e-07
+1.6247177841e+00		1.1257735875e-06
+3.2485695428e+00		2.3487802731e-05
+4.8724213015e+00		9.8109407065e-06
+6.4962730601e+00		9.2701573905e-06
+8.1201248188e+00		-2.8785299740e-06
+9.7439765775e+00		-1.0011218690e-05
+1.1367828336e+01		-2.2410268377e-06
+1.2991680095e+01		-1.0870604212e-06
+1.4615531854e+01		-5.6236536782e-07
+1.6239383612e+01		-3.1075612597e-07
+1.7863235371e+01		-1.8002316260e-07
+1.9487087130e+01		-1.0731813023e-07
+2.1110938888e+01		-6.6492710698e-08
+2.2734790647e+01		5.2622136553e-09
+2.4358642406e+01		6.0939034551e-08
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 1.7578710937e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		-6.8449188649e-08
+-2.2733058596e+01		-6.4580108819e-09
+-2.1109206837e+01		7.7961594950e-08
+-1.9485355079e+01		1.3211614531e-07
+-1.7861503320e+01		2.2312607314e-07
+-1.6237651561e+01		3.8794031668e-07
+-1.4613799803e+01		7.0356956469e-07
+-1.2989948044e+01		1.3612069992e-06
+-1.1366096285e+01		2.7294041073e-06
+-9.7422445267e+00		1.2125162145e-05
+-8.1183927680e+00		3.6225061244e-06
+-6.4945410093e+00		-1.3004124910e-05
+-4.8706892506e+00		-1.2058469398e-05
+-3.2468374920e+00		-2.9195882713e-05
+-1.6229857333e+00		-1.4117895204e-06
+8.6602540378e-04		2.0962649004e-07
+1.6247177841e+00		1.2209345109e-06
+3.2485695428e+00		2.9225692638e-05
+4.8724213015e+00		1.2042032930e-05
+6.4962730601e+00		1.3026095995e-05
+8.1201248188e+00		-3.6592227483e-06
+9.7439765775e+00		-1.2134263528e-05
+1.1367828336e+01		-2.7276771859e-06
+1.2991680095e+01		-1.3601938259e-06
+1.4615531854e+01		-7.0310196578e-07
+1.6239383612e+01		-3.8770843402e-07
+1.7863235371e+01		-2.2300570898e-07
+1.9487087130e+01		-1.3204828675e-07
+2.1110938888e+01		-7.7924924180e-08
+2.2734790647e+01		6.4624321970e-09
+2.4358642406e+01		6.8432450556e-08
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 2.1094453125e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		-6.6644211793e-08
+-2.2733058596e+01		-6.2061917335e-09
+-2.1109206837e+01		8.5490604100e-08
+-1.9485355079e+01		1.5765546801e-07
+-1.7861503320e+01		2.6313635493e-07
+-1.6237651561e+01		4.6370210135e-07
+-1.4613799803e+01		8.4413254056e-07
+-1.2989948044e+01		1.6337186517e-06
+-1.1366096285e+01		3.3707282671e-06
+-9.7422445267e+00		1.1604400885e-05
+-8.1183927680e+00		4.6182318944e-06
+-6.4945410093e+00		-1.3568035880e-05
+-4.8706892506e+00		-1.4419780776e-05
+-3.2468374920e+00		-3.4326846119e-05
+-1.6229857333e+00		-1.5123516746e-06
+8.6602540378e-04		2.1770432288e-07
+1.6247177841e+00		1.2874271237e-06
+3.2485695428e+00		3.4381901849e-05
+4.8724213015e+00		1.4401051387e-05
+6.4962730601e+00		1.3566772915e-05
+8.1201248188e+00		-4.6637190809e-06
+9.7439765775e+00		-1.1594824261e-05
+1.1367828336e+01		-3.3683695262e-06
+1.2991680095e+01		-1.6325166649e-06
+1.4615531854e+01		-8.4357181724e-07
+1.6239383612e+01		-4.6342250922e-07
+1.7863235371e+01		-2.6299108915e-07
+1.9487087130e+01		-1.5757573810e-07
+2.1110938888e+01		-8.5448973129e-08
+2.2734790647e+01		6.2125577087e-09
+2.4358642406e+01		6.6629379326e-08
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 2.4610195312e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		-5.6184225943e-08
+-2.2733058596e+01		-4.0175427957e-09
+-2.1109206837e+01		8.9432688294e-08
+-1.9485355079e+01		1.8881718975e-07
+-1.7861503320e+01		3.0355654489e-07
+-1.6237651561e+01		5.3517701258e-07
+-1.4613799803e+01		9.8382044412e-07
+-1.2989948044e+01		1.8960867892e-06
+-1.1366096285e+01		4.4374870892e-06
+-9.7422445267e+00		9.8909836995e-06
+-8.1183927680e+00		5.7226033224e-06
+-6.4945410093e+00		-1.1786553386e-05
+-4.8706892506e+00		-1.7324174150e-05
+-3.2468374920e+00		-3.8386603533e-05
+-1.6229857333e+00		-1.7425565554e-06
+8.6602540378e-04		2.5594891668e-07
+1.6247177841e+00		1.4633587405e-06
+3.2485695428e+00		3.8464163112e-05
+4.8724213015e+00		1.7304112745e-05
+6.4962730601e+00		1.1744793881e-05
+8.1201248188e+00		-5.7896440238e-06
+9.7439765775e+00		-9.8539672177e-06
+1.1367828336e+01		-4.4327714715e-06
+1.2991680095e+01		-1.8947420018e-06
+1.4615531854e+01		-9.8316413323e-07
+1.6239383612e+01		-5.3485172760e-07
+1.7863235371e+01		-3.0338759229e-07
+1.9487087130e+01		-1.8872263852e-07
+2.1110938888e+01		-8.9385188673e-08
+2.2734790647e+01		4.0266910570e-09
+2.4358642406e+01		5.6174883890e-08
+2.5982494164e+01		0.0000000000e+00
diff --git a/test/GRHydro_test_tov_ppm/momy_maximum.xg b/test/GRHydro_test_tov_ppm/momy_maximum.xg
new file mode 100644
index 0000000..1f0c1fc
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/momy_maximum.xg
@@ -0,0 +1,9 @@
+"momy v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000152415965
+0.7031484375000	0.0000243496852
+1.0547226562500	0.0000299347076
+1.4062968750000	0.0000346939402
+1.7578710937500	0.0000427176095
+2.1094453125000	0.0000503764517
+2.4610195312500	0.0000571873435
diff --git a/test/GRHydro_test_tov_ppm/momy_minimum.xg b/test/GRHydro_test_tov_ppm/momy_minimum.xg
new file mode 100644
index 0000000..99849d5
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/momy_minimum.xg
@@ -0,0 +1,9 @@
+"momy v time
+0.0000000000000	0.0000000000000
+0.3515742187500	-0.0000152832438
+0.7031484375000	-0.0000243857468
+1.0547226562500	-0.0000299945313
+1.4062968750000	-0.0000346635940
+1.7578710937500	-0.0000426592270
+2.1094453125000	-0.0000502766919
+2.4610195312500	-0.0000570552652
diff --git a/test/GRHydro_test_tov_ppm/momy_norm1.xg b/test/GRHydro_test_tov_ppm/momy_norm1.xg
new file mode 100644
index 0000000..7e24e6e
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/momy_norm1.xg
@@ -0,0 +1,9 @@
+"momy v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000004745413
+0.7031484375000	0.0000008822271
+1.0547226562500	0.0000012145249
+1.4062968750000	0.0000014956811
+1.7578710937500	0.0000017051808
+2.1094453125000	0.0000019126043
+2.4610195312500	0.0000021191178
diff --git a/test/GRHydro_test_tov_ppm/momy_norm2.xg b/test/GRHydro_test_tov_ppm/momy_norm2.xg
new file mode 100644
index 0000000..2d85ae6
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/momy_norm2.xg
@@ -0,0 +1,9 @@
+"momy v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000015180029
+0.7031484375000	0.0000025320845
+1.0547226562500	0.0000033045474
+1.4062968750000	0.0000039343704
+1.7578710937500	0.0000043900603
+2.1094453125000	0.0000047515282
+2.4610195312500	0.0000051165222
diff --git a/test/GRHydro_test_tov_ppm/momy_x_[16][16].xg b/test/GRHydro_test_tov_ppm/momy_x_[16][16].xg
new file mode 100644
index 0000000..e76364a
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/momy_x_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		0.0000000000e+00
+-1.3124937500e+01		0.0000000000e+00
+-1.2187406250e+01		0.0000000000e+00
+-1.1249875000e+01		0.0000000000e+00
+-1.0312343750e+01		0.0000000000e+00
+-9.3748125000e+00		0.0000000000e+00
+-8.4372812500e+00		0.0000000000e+00
+-7.4997500000e+00		0.0000000000e+00
+-6.5622187500e+00		0.0000000000e+00
+-5.6246875000e+00		0.0000000000e+00
+-4.6871562500e+00		0.0000000000e+00
+-3.7496250000e+00		0.0000000000e+00
+-2.8120937500e+00		0.0000000000e+00
+-1.8745625000e+00		0.0000000000e+00
+-9.3703125000e-01		0.0000000000e+00
+5.0000000000e-04		0.0000000000e+00
+9.3803125000e-01		0.0000000000e+00
+1.8755625000e+00		0.0000000000e+00
+2.8130937500e+00		0.0000000000e+00
+3.7506250000e+00		0.0000000000e+00
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+6.5632187500e+00		0.0000000000e+00
+7.5007500000e+00		0.0000000000e+00
+8.4382812500e+00		0.0000000000e+00
+9.3758125000e+00		0.0000000000e+00
+1.0313343750e+01		0.0000000000e+00
+1.1250875000e+01		0.0000000000e+00
+1.2188406250e+01		0.0000000000e+00
+1.3125937500e+01		0.0000000000e+00
+1.4063468750e+01		0.0000000000e+00
+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 3.5157421875e-01
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		2.5799540242e-11
+-1.3124937500e+01		7.1639709929e-11
+-1.2187406250e+01		1.2758521083e-10
+-1.1249875000e+01		1.9495835097e-10
+-1.0312343750e+01		4.0046623071e-10
+-9.3748125000e+00		4.0012599946e-10
+-8.4372812500e+00		-1.8480687113e-09
+-7.4997500000e+00		1.8272205149e-09
+-6.5622187500e+00		2.8346439721e-09
+-5.6246875000e+00		5.8189347455e-09
+-4.6871562500e+00		1.0905685103e-08
+-3.7496250000e+00		1.8478506691e-08
+-2.8120937500e+00		2.8468733321e-08
+-1.8745625000e+00		3.9449364442e-08
+-9.3703125000e-01		4.8571037122e-08
+5.0000000000e-04		5.2007748694e-08
+9.3803125000e-01		4.8555253758e-08
+1.8755625000e+00		3.9465827228e-08
+2.8130937500e+00		2.8434087113e-08
+3.7506250000e+00		1.8435835958e-08
+4.6881562500e+00		1.0902286568e-08
+5.6256875000e+00		5.8258875516e-09
+6.5632187500e+00		2.8346836292e-09
+7.5007500000e+00		1.8267675356e-09
+8.4382812500e+00		-1.8359264310e-09
+9.3758125000e+00		4.0264149411e-10
+1.0313343750e+01		4.0144701030e-10
+1.1250875000e+01		1.9521830729e-10
+1.2188406250e+01		1.2795038387e-10
+1.3125937500e+01		7.1933609745e-11
+1.4063468750e+01		2.5988310060e-11
+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 7.0314843750e-01
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		4.4663628457e-11
+-1.3124937500e+01		1.4484609114e-10
+-1.2187406250e+01		2.4114870812e-10
+-1.1249875000e+01		4.1674137596e-10
+-1.0312343750e+01		8.9531698441e-10
+-9.3748125000e+00		1.2045444152e-10
+-8.4372812500e+00		-2.0977206122e-09
+-7.4997500000e+00		2.6944351925e-09
+-6.5622187500e+00		5.5908032032e-09
+-5.6246875000e+00		1.0788038312e-08
+-4.6871562500e+00		2.0259473889e-08
+-3.7496250000e+00		3.4382089352e-08
+-2.8120937500e+00		5.3029646209e-08
+-1.8745625000e+00		7.3625855556e-08
+-9.3703125000e-01		9.0796016117e-08
+5.0000000000e-04		9.6988555227e-08
+9.3803125000e-01		9.0767400545e-08
+1.8755625000e+00		7.3644235333e-08
+2.8130937500e+00		5.2978841243e-08
+3.7506250000e+00		3.4303901914e-08
+4.6881562500e+00		2.0253563745e-08
+5.6256875000e+00		1.0802943368e-08
+6.5632187500e+00		5.5864946311e-09
+7.5007500000e+00		2.6986253850e-09
+8.4382812500e+00		-2.0777328967e-09
+9.3758125000e+00		1.2583356381e-10
+1.0313343750e+01		8.9465146994e-10
+1.1250875000e+01		4.1736461237e-10
+1.2188406250e+01		2.4061144843e-10
+1.3125937500e+01		1.4449713393e-10
+1.4063468750e+01		4.4999175269e-11
+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 1.0547226562e+00
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		7.8055596759e-11
+-1.3124937500e+01		2.0265687431e-10
+-1.2187406250e+01		3.6203976640e-10
+-1.1249875000e+01		6.8361437094e-10
+-1.0312343750e+01		1.2772483616e-09
+-9.3748125000e+00		-5.9259115970e-10
+-8.4372812500e+00		-5.3096998031e-10
+-7.4997500000e+00		2.5975466264e-09
+-6.5622187500e+00		8.2985660238e-09
+-5.6246875000e+00		1.4869643419e-08
+-4.6871562500e+00		2.7915123020e-08
+-3.7496250000e+00		4.7449945198e-08
+-2.8120937500e+00		7.3278257390e-08
+-1.8745625000e+00		1.0197631716e-07
+-9.3703125000e-01		1.2592142051e-07
+5.0000000000e-04		1.3426544675e-07
+9.3803125000e-01		1.2588339693e-07
+1.8755625000e+00		1.0198212561e-07
+2.8130937500e+00		7.3230017156e-08
+3.7506250000e+00		4.7352315495e-08
+4.6881562500e+00		2.7905364005e-08
+5.6256875000e+00		1.4888061067e-08
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diff --git a/test/GRHydro_test_tov_ppm/momy_y_[16][16].xg b/test/GRHydro_test_tov_ppm/momy_y_[16][16].xg
new file mode 100644
index 0000000..db295af
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/momy_y_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
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+
+"Time = 2.1094453125e+00
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diff --git a/test/GRHydro_test_tov_ppm/momy_z_[16][16].xg b/test/GRHydro_test_tov_ppm/momy_z_[16][16].xg
new file mode 100644
index 0000000..62c862e
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/momy_z_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-1.5000000000e+01		0.0000000000e+00
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+"Time = 3.5157421875e-01
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+
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+
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+
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+
+"Time = 1.7578710937e+00
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+
+"Time = 2.1094453125e+00
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+
+"Time = 2.4610195312e+00
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+1.5001000000e+01		0.0000000000e+00
diff --git a/test/GRHydro_test_tov_ppm/momz_3D_diagonal.xg b/test/GRHydro_test_tov_ppm/momz_3D_diagonal.xg
new file mode 100644
index 0000000..5a060ba
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/momz_3D_diagonal.xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-2.5980762114e+01		0.0000000000e+00
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+-9.7422445267e+00		0.0000000000e+00
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+-4.8706892506e+00		0.0000000000e+00
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+2.4358642406e+01		0.0000000000e+00
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 3.5157421875e-01
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		-1.1500484473e-08
+-2.2733058596e+01		3.5353046438e-09
+-2.1109206837e+01		1.7501125516e-08
+-1.9485355079e+01		2.7803072158e-08
+-1.7861503320e+01		4.5445451734e-08
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+-1.2989948044e+01		2.7141762575e-07
+-1.1366096285e+01		5.6850028388e-07
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+-6.4945410093e+00		-3.3707140944e-07
+-4.8706892506e+00		-2.5394975788e-06
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+2.4358642406e+01		1.1499936374e-08
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+
+
+"Time = 7.0314843750e-01
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		-2.7255656104e-08
+-2.2733058596e+01		6.5077923680e-10
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+-9.7422445267e+00		2.6421385023e-06
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+2.4358642406e+01		2.7250651354e-08
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 1.0547226562e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		-4.6085099542e-08
+-2.2733058596e+01		-2.7607341429e-09
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+2.4358642406e+01		4.6074358552e-08
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+
+
+"Time = 1.4062968750e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		-6.0954160363e-08
+-2.2733058596e+01		-5.2594523051e-09
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+2.4358642406e+01		6.0939034551e-08
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 1.7578710937e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		-6.8449188649e-08
+-2.2733058596e+01		-6.4580108618e-09
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+-1.7861503320e+01		2.2312607314e-07
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+2.4358642406e+01		6.8432450556e-08
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 2.1094453125e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		-6.6644211793e-08
+-2.2733058596e+01		-6.2061917623e-09
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+-1.7861503320e+01		2.6313635497e-07
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+2.4358642406e+01		6.6629379327e-08
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 2.4610195312e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		-5.6184225942e-08
+-2.2733058596e+01		-4.0175428069e-09
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+-1.9485355079e+01		1.8881718972e-07
+-1.7861503320e+01		3.0355654485e-07
+-1.6237651561e+01		5.3517701261e-07
+-1.4613799803e+01		9.8382044404e-07
+-1.2989948044e+01		1.8960867891e-06
+-1.1366096285e+01		4.4374870891e-06
+-9.7422445267e+00		9.8909836995e-06
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+4.8724213015e+00		1.7304112745e-05
+6.4962730601e+00		1.1744793881e-05
+8.1201248188e+00		-5.7896440238e-06
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+1.6239383612e+01		-5.3485172778e-07
+1.7863235371e+01		-3.0338759241e-07
+1.9487087130e+01		-1.8872263856e-07
+2.1110938888e+01		-8.9385188703e-08
+2.2734790647e+01		4.0266911005e-09
+2.4358642406e+01		5.6174883886e-08
+2.5982494164e+01		0.0000000000e+00
diff --git a/test/GRHydro_test_tov_ppm/momz_maximum.xg b/test/GRHydro_test_tov_ppm/momz_maximum.xg
new file mode 100644
index 0000000..e47c256
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/momz_maximum.xg
@@ -0,0 +1,9 @@
+"momz v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000152415965
+0.7031484375000	0.0000243496852
+1.0547226562500	0.0000299347076
+1.4062968750000	0.0000346939402
+1.7578710937500	0.0000427176095
+2.1094453125000	0.0000503764517
+2.4610195312500	0.0000571873435
diff --git a/test/GRHydro_test_tov_ppm/momz_minimum.xg b/test/GRHydro_test_tov_ppm/momz_minimum.xg
new file mode 100644
index 0000000..8f81c7a
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/momz_minimum.xg
@@ -0,0 +1,9 @@
+"momz v time
+0.0000000000000	0.0000000000000
+0.3515742187500	-0.0000152832438
+0.7031484375000	-0.0000243857468
+1.0547226562500	-0.0000299945313
+1.4062968750000	-0.0000346635940
+1.7578710937500	-0.0000426592270
+2.1094453125000	-0.0000502766919
+2.4610195312500	-0.0000570552652
diff --git a/test/GRHydro_test_tov_ppm/momz_norm1.xg b/test/GRHydro_test_tov_ppm/momz_norm1.xg
new file mode 100644
index 0000000..9b14a9a
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/momz_norm1.xg
@@ -0,0 +1,9 @@
+"momz v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000004745413
+0.7031484375000	0.0000008822271
+1.0547226562500	0.0000012145249
+1.4062968750000	0.0000014956811
+1.7578710937500	0.0000017051808
+2.1094453125000	0.0000019126043
+2.4610195312500	0.0000021191178
diff --git a/test/GRHydro_test_tov_ppm/momz_norm2.xg b/test/GRHydro_test_tov_ppm/momz_norm2.xg
new file mode 100644
index 0000000..73ff283
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/momz_norm2.xg
@@ -0,0 +1,9 @@
+"momz v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000015180029
+0.7031484375000	0.0000025320845
+1.0547226562500	0.0000033045474
+1.4062968750000	0.0000039343704
+1.7578710937500	0.0000043900603
+2.1094453125000	0.0000047515282
+2.4610195312500	0.0000051165222
diff --git a/test/GRHydro_test_tov_ppm/momz_x_[16][16].xg b/test/GRHydro_test_tov_ppm/momz_x_[16][16].xg
new file mode 100644
index 0000000..f0eea1f
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/momz_x_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		0.0000000000e+00
+-1.3124937500e+01		0.0000000000e+00
+-1.2187406250e+01		0.0000000000e+00
+-1.1249875000e+01		0.0000000000e+00
+-1.0312343750e+01		0.0000000000e+00
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+-8.4372812500e+00		0.0000000000e+00
+-7.4997500000e+00		0.0000000000e+00
+-6.5622187500e+00		0.0000000000e+00
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+-3.7496250000e+00		0.0000000000e+00
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+-1.8745625000e+00		0.0000000000e+00
+-9.3703125000e-01		0.0000000000e+00
+5.0000000000e-04		0.0000000000e+00
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+1.4063468750e+01		0.0000000000e+00
+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 3.5157421875e-01
+-1.5000000000e+01		0.0000000000e+00
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diff --git a/test/GRHydro_test_tov_ppm/momz_y_[16][16].xg b/test/GRHydro_test_tov_ppm/momz_y_[16][16].xg
new file mode 100644
index 0000000..d89bfb0
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/momz_y_[16][16].xg
@@ -0,0 +1,288 @@
+
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+"Time = 0.0000000000e+00
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diff --git a/test/GRHydro_test_tov_ppm/momz_z_[16][16].xg b/test/GRHydro_test_tov_ppm/momz_z_[16][16].xg
new file mode 100644
index 0000000..54f635c
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/momz_z_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
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+8.4382812500e+00		-1.9559714483e-05
+9.3758125000e+00		8.6783519600e-07
+1.0313343750e+01		8.5804801717e-06
+1.1250875000e+01		7.7034306834e-06
+1.2188406250e+01		5.5934744840e-06
+1.3125937500e+01		8.0646596740e-06
+1.4063468750e+01		8.0436190174e-06
+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 2.1094453125e+00
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		-9.0646906732e-06
+-1.3124937500e+01		-9.2237629249e-06
+-1.2187406250e+01		-7.1928898759e-06
+-1.1249875000e+01		-8.9432633528e-06
+-1.0312343750e+01		-7.7479364757e-06
+-9.3748125000e+00		-2.3069920761e-06
+-8.4372812500e+00		2.3619740460e-05
+-7.4997500000e+00		1.2528264482e-05
+-6.5622187500e+00		-3.5795104524e-06
+-5.6246875000e+00		2.4565157378e-06
+-4.6871562500e+00		-4.3595214706e-06
+-3.7496250000e+00		-1.8487197589e-05
+-2.8120937500e+00		-3.6416821736e-05
+-1.8745625000e+00		-5.0276691870e-05
+-9.3703125000e-01		-2.7485707227e-06
+5.0000000000e-04		2.1770432287e-07
+9.3803125000e-01		2.4908095889e-06
+1.8755625000e+00		5.0376451745e-05
+2.8130937500e+00		3.6390593002e-05
+3.7506250000e+00		1.8466396092e-05
+4.6881562500e+00		4.3470148415e-06
+5.6256875000e+00		-2.4525083312e-06
+6.5632187500e+00		3.6013822006e-06
+7.5007500000e+00		-1.2552429837e-05
+8.4382812500e+00		-2.3670832619e-05
+9.3758125000e+00		2.3341118759e-06
+1.0313343750e+01		7.7746248182e-06
+1.1250875000e+01		8.9376873491e-06
+1.2188406250e+01		7.1911578748e-06
+1.3125937500e+01		9.2215173757e-06
+1.4063468750e+01		9.0620751427e-06
+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 2.4610195312e+00
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		-9.3518131452e-06
+-1.3124937500e+01		-1.0049073710e-05
+-1.2187406250e+01		-9.0676088717e-06
+-1.1249875000e+01		-9.7011484623e-06
+-1.0312343750e+01		-6.1639757250e-06
+-9.3748125000e+00		-7.2431480787e-07
+-8.4372812500e+00		2.7279672268e-05
+-7.4997500000e+00		1.5368465177e-05
+-6.5622187500e+00		-6.4237623975e-06
+-5.6246875000e+00		-5.5187727258e-07
+-4.6871562500e+00		-6.4976489045e-06
+-3.7496250000e+00		-2.3021048502e-05
+-2.8120937500e+00		-4.3156790986e-05
+-1.8745625000e+00		-5.7055265170e-05
+-9.3703125000e-01		-5.6505001372e-06
+5.0000000000e-04		2.5594891668e-07
+9.3803125000e-01		5.3339041438e-06
+1.8755625000e+00		5.7187343457e-05
+2.8130937500e+00		4.3126721902e-05
+3.7506250000e+00		2.2996963122e-05
+4.6881562500e+00		6.4833311079e-06
+5.6256875000e+00		5.6793559450e-07
+6.5632187500e+00		6.4410631862e-06
+7.5007500000e+00		-1.5355420369e-05
+8.4382812500e+00		-2.7341240999e-05
+9.3758125000e+00		6.9740859013e-07
+1.0313343750e+01		6.2024866692e-06
+1.1250875000e+01		9.6963963007e-06
+1.2188406250e+01		9.0637938265e-06
+1.3125937500e+01		1.0046809902e-05
+1.4063468750e+01		9.3492374305e-06
+1.5001000000e+01		0.0000000000e+00
diff --git a/test/GRHydro_test_tov_ppm/press_3D_diagonal.xg b/test/GRHydro_test_tov_ppm/press_3D_diagonal.xg
new file mode 100644
index 0000000..330ea8f
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/press_3D_diagonal.xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-2.5980762114e+01		1.0000000000e-12
+-2.4356910355e+01		1.0000000000e-12
+-2.2733058596e+01		1.0000000000e-12
+-2.1109206837e+01		1.0000000000e-12
+-1.9485355079e+01		1.0000000000e-12
+-1.7861503320e+01		1.0000000000e-12
+-1.6237651561e+01		1.0000000000e-12
+-1.4613799803e+01		1.0000000000e-12
+-1.2989948044e+01		1.0000000000e-12
+-1.1366096285e+01		1.0000000000e-12
+-9.7422445267e+00		1.0000000000e-12
+-8.1183927680e+00		5.2155848592e-11
+-6.4945410093e+00		4.5683239346e-06
+-4.8706892506e+00		2.5457424656e-05
+-3.2468374920e+00		7.1655046847e-05
+-1.6229857333e+00		1.3271087441e-04
+8.6602540378e-04		1.6383998934e-04
+1.6247177841e+00		1.3265171853e-04
+3.2485695428e+00		7.1592827329e-05
+4.8724213015e+00		2.5422474273e-05
+6.4962730601e+00		4.5567990214e-06
+8.1201248188e+00		2.8851771095e-11
+9.7439765775e+00		1.0000000000e-12
+1.1367828336e+01		1.0000000000e-12
+1.2991680095e+01		1.0000000000e-12
+1.4615531854e+01		1.0000000000e-12
+1.6239383612e+01		1.0000000000e-12
+1.7863235371e+01		1.0000000000e-12
+1.9487087130e+01		1.0000000000e-12
+2.1110938888e+01		1.0000000000e-12
+2.2734790647e+01		1.0000000000e-12
+2.4358642406e+01		1.0000000000e-12
+2.5982494164e+01		1.0000000000e-12
+
+
+"Time = 3.5157421875e-01
+-2.5980762114e+01		1.0000022590e-12
+-2.4356910355e+01		1.0000000709e-12
+-2.2733058596e+01		1.0000000915e-12
+-2.1109206837e+01		1.0000000000e-12
+-1.9485355079e+01		1.0000000000e-12
+-1.7861503320e+01		1.0000000000e-12
+-1.6237651561e+01		1.0000000000e-12
+-1.4613799803e+01		1.0000000000e-12
+-1.2989948044e+01		1.0000000000e-12
+-1.1366096285e+01		1.0000000000e-12
+-9.7422445267e+00		1.0000000000e-12
+-8.1183927680e+00		1.4282560519e-10
+-6.4945410093e+00		4.5681771225e-06
+-4.8706892506e+00		2.5457253928e-05
+-3.2468374920e+00		7.1656990283e-05
+-1.6229857333e+00		1.3291942183e-04
+8.6602540378e-04		1.6333106334e-04
+1.6247177841e+00		1.3286100022e-04
+3.2485695428e+00		7.1594785711e-05
+4.8724213015e+00		2.5422304290e-05
+6.4962730601e+00		4.5566522379e-06
+8.1201248188e+00		1.0269276172e-10
+9.7439765775e+00		1.0000000000e-12
+1.1367828336e+01		1.0000000000e-12
+1.2991680095e+01		1.0000000000e-12
+1.4615531854e+01		1.0000000000e-12
+1.6239383612e+01		1.0000000000e-12
+1.7863235371e+01		1.0000000000e-12
+1.9487087130e+01		1.0000000000e-12
+2.1110938888e+01		1.0000000000e-12
+2.2734790647e+01		1.0000000916e-12
+2.4358642406e+01		1.0000000709e-12
+2.5982494164e+01		1.0000022583e-12
+
+
+"Time = 7.0314843750e-01
+-2.5980762114e+01		1.0000028062e-12
+-2.4356910355e+01		1.0000002613e-12
+-2.2733058596e+01		1.0000003585e-12
+-2.1109206837e+01		1.0000000000e-12
+-1.9485355079e+01		1.0000000000e-12
+-1.7861503320e+01		1.0000000000e-12
+-1.6237651561e+01		1.0000000000e-12
+-1.4613799803e+01		1.0000000000e-12
+-1.2989948044e+01		1.0000000000e-12
+-1.1366096285e+01		1.0000000000e-12
+-9.7422445267e+00		1.0000000000e-12
+-8.1183927680e+00		2.7302055108e-10
+-6.4945410093e+00		4.5677301435e-06
+-4.8706892506e+00		2.5456843825e-05
+-3.2468374920e+00		7.1662313001e-05
+-1.6229857333e+00		1.3312273877e-04
+8.6602540378e-04		1.6281991117e-04
+1.6247177841e+00		1.3306501081e-04
+3.2485695428e+00		7.1600151538e-05
+4.8724213015e+00		2.5421896834e-05
+6.4962730601e+00		4.5562059347e-06
+8.1201248188e+00		2.1735452003e-10
+9.7439765775e+00		1.0000000000e-12
+1.1367828336e+01		1.0000000000e-12
+1.2991680095e+01		1.0000000000e-12
+1.4615531854e+01		1.0000000000e-12
+1.6239383612e+01		1.0000000000e-12
+1.7863235371e+01		1.0000000000e-12
+1.9487087130e+01		1.0000000000e-12
+2.1110938888e+01		1.0000000000e-12
+2.2734790647e+01		1.0000003585e-12
+2.4358642406e+01		1.0000002614e-12
+2.5982494164e+01		1.0000028054e-12
+
+
+"Time = 1.0547226562e+00
+-2.5980762114e+01		1.0000030391e-12
+-2.4356910355e+01		1.0000005669e-12
+-2.2733058596e+01		1.0000007721e-12
+-2.1109206837e+01		1.0000000000e-12
+-1.9485355079e+01		1.0000000000e-12
+-1.7861503320e+01		1.0000000000e-12
+-1.6237651561e+01		1.0000000000e-12
+-1.4613799803e+01		1.0000000000e-12
+-1.2989948044e+01		1.0000000000e-12
+-1.1366096285e+01		1.0000000000e-12
+-9.7422445267e+00		1.0000000000e-12
+-8.1183927680e+00		4.3818368902e-10
+-6.4945410093e+00		4.5669695131e-06
+-4.8706892506e+00		2.5456398993e-05
+-3.2468374920e+00		7.1670038641e-05
+-1.6229857333e+00		1.3331885388e-04
+8.6602540378e-04		1.6231335175e-04
+1.6247177841e+00		1.3326177612e-04
+3.2485695428e+00		7.1607945149e-05
+4.8724213015e+00		2.5421457313e-05
+6.4962730601e+00		4.5554471437e-06
+8.1201248188e+00		3.6836707272e-10
+9.7439765775e+00		1.0000000000e-12
+1.1367828336e+01		1.0000000000e-12
+1.2991680095e+01		1.0000000000e-12
+1.4615531854e+01		1.0000000000e-12
+1.6239383612e+01		1.0000000000e-12
+1.7863235371e+01		1.0000000000e-12
+1.9487087130e+01		1.0000000000e-12
+2.1110938888e+01		1.0000000000e-12
+2.2734790647e+01		1.0000007723e-12
+2.4358642406e+01		1.0000005671e-12
+2.5982494164e+01		1.0000030384e-12
+
+
+"Time = 1.4062968750e+00
+-2.5980762114e+01		1.0000033139e-12
+-2.4356910355e+01		1.0000009885e-12
+-2.2733058596e+01		1.0000013025e-12
+-2.1109206837e+01		1.0000000000e-12
+-1.9485355079e+01		1.0000000000e-12
+-1.7861503320e+01		1.0000000000e-12
+-1.6237651561e+01		1.0000000000e-12
+-1.4613799803e+01		1.0000000000e-12
+-1.2989948044e+01		1.0000000000e-12
+-1.1366096285e+01		1.0000000000e-12
+-9.7422445267e+00		1.0000000000e-12
+-8.1183927680e+00		6.3129747178e-10
+-6.4945410093e+00		4.5658679355e-06
+-4.8706892506e+00		2.5456151138e-05
+-3.2468374920e+00		7.1679116925e-05
+-1.6229857333e+00		1.3350826532e-04
+8.6602540378e-04		1.6181402542e-04
+1.6247177841e+00		1.3345141006e-04
+3.2485695428e+00		7.1617128409e-05
+4.8724213015e+00		2.5421212784e-05
+6.4962730601e+00		4.5543490119e-06
+8.1201248188e+00		5.5068191405e-10
+9.7439765775e+00		1.0000000000e-12
+1.1367828336e+01		1.0000000000e-12
+1.2991680095e+01		1.0000000000e-12
+1.4615531854e+01		1.0000000000e-12
+1.6239383612e+01		1.0000000000e-12
+1.7863235371e+01		1.0000000000e-12
+1.9487087130e+01		1.0000000000e-12
+2.1110938888e+01		1.0000000000e-12
+2.2734790647e+01		1.0000013029e-12
+2.4358642406e+01		1.0000009889e-12
+2.5982494164e+01		1.0000033134e-12
+
+
+"Time = 1.7578710937e+00
+-2.5980762114e+01		1.0000036932e-12
+-2.4356910355e+01		1.0000015206e-12
+-2.2733058596e+01		1.0000019245e-12
+-2.1109206837e+01		1.0000000000e-12
+-1.9485355079e+01		1.0003152659e-12
+-1.7861503320e+01		1.0000000000e-12
+-1.6237651561e+01		1.0000000000e-12
+-1.4613799803e+01		1.0000000000e-12
+-1.2989948044e+01		1.0000000000e-12
+-1.1366096285e+01		1.0000000000e-12
+-9.7422445267e+00		1.0000000000e-12
+-8.1183927680e+00		8.4556019933e-10
+-6.4945410093e+00		4.5643664940e-06
+-4.8706892506e+00		2.5456720010e-05
+-3.2468374920e+00		7.1688222064e-05
+-1.6229857333e+00		1.3369226281e-04
+8.6602540378e-04		1.6131823393e-04
+1.6247177841e+00		1.3363563129e-04
+3.2485695428e+00		7.1626389245e-05
+4.8724213015e+00		2.5421774407e-05
+6.4962730601e+00		4.5528539686e-06
+8.1201248188e+00		7.5632909412e-10
+9.7439765775e+00		1.0000000000e-12
+1.1367828336e+01		1.0000000000e-12
+1.2991680095e+01		1.0000000000e-12
+1.4615531854e+01		1.0000000000e-12
+1.6239383612e+01		1.0000000000e-12
+1.7863235371e+01		1.0000000000e-12
+1.9487087130e+01		1.0003152183e-12
+2.1110938888e+01		1.0000000000e-12
+2.2734790647e+01		1.0000019251e-12
+2.4358642406e+01		1.0000015212e-12
+2.5982494164e+01		1.0000036929e-12
+
+
+"Time = 2.1094453125e+00
+-2.5980762114e+01		1.0000041884e-12
+-2.4356910355e+01		1.0000021537e-12
+-2.2733058596e+01		1.0000026214e-12
+-2.1109206837e+01		1.0000000000e-12
+-1.9485355079e+01		1.0006288905e-12
+-1.7861503320e+01		1.0003687692e-12
+-1.6237651561e+01		1.0000000000e-12
+-1.4613799803e+01		1.0000000000e-12
+-1.2989948044e+01		1.0000000000e-12
+-1.1366096285e+01		1.0000000000e-12
+-9.7422445267e+00		1.0000000000e-12
+-8.1183927680e+00		1.0760336966e-09
+-6.4945410093e+00		4.5623633601e-06
+-4.8706892506e+00		2.5458687493e-05
+-3.2468374920e+00		7.1696701754e-05
+-1.6229857333e+00		1.3385747397e-04
+8.6602540378e-04		1.6084206838e-04
+1.6247177841e+00		1.3380200334e-04
+3.2485695428e+00		7.1634857395e-05
+4.8724213015e+00		2.5423733953e-05
+6.4962730601e+00		4.5508614255e-06
+8.1201248188e+00		9.7912103269e-10
+9.7439765775e+00		1.0000000000e-12
+1.1367828336e+01		1.0000000000e-12
+1.2991680095e+01		1.0000000000e-12
+1.4615531854e+01		1.0000000000e-12
+1.6239383612e+01		1.0000000000e-12
+1.7863235371e+01		1.0003687095e-12
+1.9487087130e+01		1.0006287963e-12
+2.1110938888e+01		1.0000000000e-12
+2.2734790647e+01		1.0000026223e-12
+2.4358642406e+01		1.0000021547e-12
+2.5982494164e+01		1.0000041884e-12
+
+
+"Time = 2.4610195312e+00
+-2.5980762114e+01		1.0000047952e-12
+-2.4356910355e+01		1.0000028773e-12
+-2.2733058596e+01		1.0000033832e-12
+-2.1109206837e+01		1.0000000000e-12
+-1.9485355079e+01		1.0000000000e-12
+-1.7861503320e+01		1.0007307085e-12
+-1.6237651561e+01		1.0004314389e-12
+-1.4613799803e+01		1.0000000000e-12
+-1.2989948044e+01		1.0000000000e-12
+-1.1366096285e+01		1.0000000000e-12
+-9.7422445267e+00		1.0000000000e-12
+-8.1183927680e+00		1.3223917396e-09
+-6.4945410093e+00		4.5599178823e-06
+-4.8706892506e+00		2.5461477962e-05
+-3.2468374920e+00		7.1707591496e-05
+-1.6229857333e+00		1.3399511413e-04
+8.6602540378e-04		1.6041223256e-04
+1.6247177841e+00		1.3393934438e-04
+3.2485695428e+00		7.1645876287e-05
+4.8724213015e+00		2.5426512120e-05
+6.4962730601e+00		4.5484264957e-06
+8.1201248188e+00		1.2165153119e-09
+9.7439765775e+00		1.0000000000e-12
+1.1367828336e+01		1.0000000000e-12
+1.2991680095e+01		1.0000000000e-12
+1.4615531854e+01		1.0000000000e-12
+1.6239383612e+01		1.0004313638e-12
+1.7863235371e+01		1.0007305913e-12
+1.9487087130e+01		1.0000000000e-12
+2.1110938888e+01		1.0000000000e-12
+2.2734790647e+01		1.0000033844e-12
+2.4358642406e+01		1.0000028785e-12
+2.5982494164e+01		1.0000047956e-12
diff --git a/test/GRHydro_test_tov_ppm/press_maximum.xg b/test/GRHydro_test_tov_ppm/press_maximum.xg
new file mode 100644
index 0000000..e8669ea
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/press_maximum.xg
@@ -0,0 +1,9 @@
+"press v time
+0.0000000000000	0.0001638399893
+0.3515742187500	0.0001633310633
+0.7031484375000	0.0001628199112
+1.0547226562500	0.0001623133518
+1.4062968750000	0.0001618140254
+1.7578710937500	0.0001613182339
+2.1094453125000	0.0001608420684
+2.4610195312500	0.0001604122326
diff --git a/test/GRHydro_test_tov_ppm/press_minimum.xg b/test/GRHydro_test_tov_ppm/press_minimum.xg
new file mode 100644
index 0000000..5860d41
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/press_minimum.xg
@@ -0,0 +1,9 @@
+"press v time
+0.0000000000000	0.0000000000010
+0.3515742187500	0.0000000000010
+0.7031484375000	0.0000000000010
+1.0547226562500	0.0000000000010
+1.4062968750000	0.0000000000010
+1.7578710937500	0.0000000000010
+2.1094453125000	0.0000000000010
+2.4610195312500	0.0000000000010
diff --git a/test/GRHydro_test_tov_ppm/press_norm1.xg b/test/GRHydro_test_tov_ppm/press_norm1.xg
new file mode 100644
index 0000000..d139036
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/press_norm1.xg
@@ -0,0 +1,9 @@
+"press v time
+0.0000000000000	0.0000013103160
+0.3515742187500	0.0000013102421
+0.7031484375000	0.0000013101651
+1.0547226562500	0.0000013100846
+1.4062968750000	0.0000013099993
+1.7578710937500	0.0000013099082
+2.1094453125000	0.0000013098105
+2.4610195312500	0.0000013097039
diff --git a/test/GRHydro_test_tov_ppm/press_norm2.xg b/test/GRHydro_test_tov_ppm/press_norm2.xg
new file mode 100644
index 0000000..9b2d8f1
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/press_norm2.xg
@@ -0,0 +1,9 @@
+"press v time
+0.0000000000000	0.0000089699871
+0.3515742187500	0.0000089694677
+0.7031484375000	0.0000089688693
+1.0547226562500	0.0000089681938
+1.4062968750000	0.0000089674341
+1.7578710937500	0.0000089665834
+2.1094453125000	0.0000089656470
+2.4610195312500	0.0000089646000
diff --git a/test/GRHydro_test_tov_ppm/press_x_[16][16].xg b/test/GRHydro_test_tov_ppm/press_x_[16][16].xg
new file mode 100644
index 0000000..e3ce88a
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/press_x_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-1.5000000000e+01		1.0000000000e-12
+-1.4062468750e+01		1.0000000000e-12
+-1.3124937500e+01		1.0000000000e-12
+-1.2187406250e+01		1.0000000000e-12
+-1.1249875000e+01		1.0000000000e-12
+-1.0312343750e+01		1.0000000000e-12
+-9.3748125000e+00		1.0000000000e-12
+-8.4372812500e+00		1.0000000000e-12
+-7.4997500000e+00		5.2605173583e-07
+-6.5622187500e+00		4.1315900663e-06
+-5.6246875000e+00		1.2995946174e-05
+-4.6871562500e+00		2.9335030675e-05
+-3.7496250000e+00		5.4603112748e-05
+-2.8120937500e+00		8.7842646809e-05
+-1.8745625000e+00		1.2379368326e-04
+-9.3703125000e-01		1.5265624931e-04
+5.0000000000e-04		1.6383998934e-04
+9.3803125000e-01		1.5263328310e-04
+1.8755625000e+00		1.2375708443e-04
+2.8130937500e+00		8.7804360334e-05
+3.7506250000e+00		5.4571420118e-05
+4.6881562500e+00		2.9312961502e-05
+5.6256875000e+00		1.2982880569e-05
+6.5632187500e+00		4.1253437891e-06
+7.5007500000e+00		5.2423683754e-07
+8.4382812500e+00		1.0000000000e-12
+9.3758125000e+00		1.0000000000e-12
+1.0313343750e+01		1.0000000000e-12
+1.1250875000e+01		1.0000000000e-12
+1.2188406250e+01		1.0000000000e-12
+1.3125937500e+01		1.0000000000e-12
+1.4063468750e+01		1.0000000000e-12
+1.5001000000e+01		1.0000000000e-12
+
+
+"Time = 3.5157421875e-01
+-1.5000000000e+01		1.0000512798e-12
+-1.4062468750e+01		1.0000002185e-12
+-1.3124937500e+01		1.0000009868e-12
+-1.2187406250e+01		1.0000000000e-12
+-1.1249875000e+01		1.0000000000e-12
+-1.0312343750e+01		1.0000000000e-12
+-9.3748125000e+00		1.0043633101e-12
+-8.4372812500e+00		6.8912518266e-12
+-7.4997500000e+00		5.2270979255e-07
+-6.5622187500e+00		4.1245384660e-06
+-5.6246875000e+00		1.2973928705e-05
+-4.6871562500e+00		2.9284232039e-05
+-3.7496250000e+00		5.4503906833e-05
+-2.8120937500e+00		8.7674635062e-05
+-1.8745625000e+00		1.2354828949e-04
+-9.3703125000e-01		1.5242455147e-04
+5.0000000000e-04		1.6333106334e-04
+9.3803125000e-01		1.5240195273e-04
+1.8755625000e+00		1.2351178360e-04
+2.8130937500e+00		8.7636431075e-05
+3.7506250000e+00		5.4472277159e-05
+4.6881562500e+00		2.9262203314e-05
+5.6256875000e+00		1.2960885181e-05
+6.5632187500e+00		4.1183028767e-06
+7.5007500000e+00		5.2091031343e-07
+8.4382812500e+00		6.8585983620e-12
+9.3758125000e+00		1.0043428118e-12
+1.0313343750e+01		1.0000000000e-12
+1.1250875000e+01		1.0000000000e-12
+1.2188406250e+01		1.0000000000e-12
+1.3125937500e+01		1.0000009865e-12
+1.4063468750e+01		1.0000002184e-12
+1.5001000000e+01		1.0000512658e-12
+
+
+"Time = 7.0314843750e-01
+-1.5000000000e+01		1.0000665365e-12
+-1.4062468750e+01		1.0000005372e-12
+-1.3124937500e+01		1.0000038328e-12
+-1.2187406250e+01		1.0000000000e-12
+-1.1249875000e+01		1.0005732660e-12
+-1.0312343750e+01		1.0000000000e-12
+-9.3748125000e+00		1.0137711323e-12
+-8.4372812500e+00		1.7914330220e-11
+-7.4997500000e+00		5.1948654523e-07
+-6.5622187500e+00		4.1178184324e-06
+-5.6246875000e+00		1.2951803689e-05
+-4.6871562500e+00		2.9233404058e-05
+-3.7496250000e+00		5.4403983724e-05
+-2.8120937500e+00		8.7504870178e-05
+-1.8745625000e+00		1.2330332995e-04
+-9.3703125000e-01		1.5218820155e-04
+5.0000000000e-04		1.6281991117e-04
+9.3803125000e-01		1.5216595111e-04
+1.8755625000e+00		1.2326693654e-04
+2.8130937500e+00		8.7466751881e-05
+3.7506250000e+00		5.4372417828e-05
+4.6881562500e+00		2.9211416143e-05
+5.6256875000e+00		1.2938782080e-05
+6.5632187500e+00		4.1115943920e-06
+7.5007500000e+00		5.1770181383e-07
+8.4382812500e+00		1.7809336630e-11
+9.3758125000e+00		1.0137067216e-12
+1.0313343750e+01		1.0000000000e-12
+1.1250875000e+01		1.0005731781e-12
+1.2188406250e+01		1.0000000000e-12
+1.3125937500e+01		1.0000038316e-12
+1.4063468750e+01		1.0000005370e-12
+1.5001000000e+01		1.0000665184e-12
+
+
+"Time = 1.0547226562e+00
+-1.5000000000e+01		1.0000702292e-12
+-1.4062468750e+01		1.0000009108e-12
+-1.3124937500e+01		1.0000081217e-12
+-1.2187406250e+01		1.0000000000e-12
+-1.1249875000e+01		1.0009712783e-12
+-1.0312343750e+01		1.0000000000e-12
+-9.3748125000e+00		1.0267773595e-12
+-8.4372812500e+00		3.3898482512e-11
+-7.4997500000e+00		5.1638365970e-07
+-6.5622187500e+00		4.1114617907e-06
+-5.6246875000e+00		1.2929722882e-05
+-4.6871562500e+00		2.9183013592e-05
+-3.7496250000e+00		5.4304396219e-05
+-2.8120937500e+00		8.7335748061e-05
+-1.8745625000e+00		1.2306125318e-04
+-9.3703125000e-01		1.5195047613e-04
+5.0000000000e-04		1.6231335175e-04
+9.3803125000e-01		1.5192855273e-04
+1.8755625000e+00		1.2302498766e-04
+2.8130937500e+00		8.7297719155e-05
+3.7506250000e+00		5.4272894001e-05
+4.6881562500e+00		2.9161066353e-05
+5.6256875000e+00		1.2916722906e-05
+6.5632187500e+00		4.1052500172e-06
+7.5007500000e+00		5.1461300762e-07
+8.4382812500e+00		3.3682441180e-11
+9.3758125000e+00		1.0266531612e-12
+1.0313343750e+01		1.0000000000e-12
+1.1250875000e+01		1.0009711053e-12
+1.2188406250e+01		1.0000000000e-12
+1.3125937500e+01		1.0000081192e-12
+1.4063468750e+01		1.0000009105e-12
+1.5001000000e+01		1.0000702101e-12
+
+
+"Time = 1.4062968750e+00
+-1.5000000000e+01		1.0000699013e-12
+-1.4062468750e+01		1.0000016920e-12
+-1.3124937500e+01		1.0000134320e-12
+-1.2187406250e+01		1.0000000000e-12
+-1.1249875000e+01		1.0016292517e-12
+-1.0312343750e+01		1.0000000000e-12
+-9.3748125000e+00		1.0429142125e-12
+-8.4372812500e+00		5.4655278695e-11
+-7.4997500000e+00		5.1340445659e-07
+-6.5622187500e+00		4.1054453600e-06
+-5.6246875000e+00		1.2907454025e-05
+-4.6871562500e+00		2.9132430172e-05
+-3.7496250000e+00		5.4204105073e-05
+-2.8120937500e+00		8.7166644743e-05
+-1.8745625000e+00		1.2282125657e-04
+-9.3703125000e-01		1.5171236163e-04
+5.0000000000e-04		1.6181402542e-04
+9.3803125000e-01		1.5169059466e-04
+1.8755625000e+00		1.2278514057e-04
+2.8130937500e+00		8.7128701485e-05
+3.7506250000e+00		5.4172667222e-05
+4.6881562500e+00		2.9110523947e-05
+5.6256875000e+00		1.2894475812e-05
+6.5632187500e+00		4.0992466162e-06
+7.5007500000e+00		5.1164721058e-07
+8.4382812500e+00		5.4290640587e-11
+9.3758125000e+00		1.0427117183e-12
+1.0313343750e+01		1.0000000000e-12
+1.1250875000e+01		1.0016289387e-12
+1.2188406250e+01		1.0000000000e-12
+1.3125937500e+01		1.0000134278e-12
+1.4063468750e+01		1.0000016913e-12
+1.5001000000e+01		1.0000698822e-12
+
+
+"Time = 1.7578710937e+00
+-1.5000000000e+01		1.0000684367e-12
+-1.4062468750e+01		1.0000031751e-12
+-1.3124937500e+01		1.0000194911e-12
+-1.2187406250e+01		1.0000000000e-12
+-1.1249875000e+01		1.0025503298e-12
+-1.0312343750e+01		1.0000000000e-12
+-9.3748125000e+00		1.0618124064e-12
+-8.4372812500e+00		7.9980208525e-11
+-7.4997500000e+00		5.1055249486e-07
+-6.5622187500e+00		4.0997229103e-06
+-5.6246875000e+00		1.2885085960e-05
+-4.6871562500e+00		2.9082089959e-05
+-3.7496250000e+00		5.4103755836e-05
+-2.8120937500e+00		8.6998889143e-05
+-1.8745625000e+00		1.2258229262e-04
+-9.3703125000e-01		1.5147292962e-04
+5.0000000000e-04		1.6131823393e-04
+9.3803125000e-01		1.5145131694e-04
+1.8755625000e+00		1.2254635579e-04
+2.8130937500e+00		8.6961018304e-05
+3.7506250000e+00		5.4072386566e-05
+4.6881562500e+00		2.9060224647e-05
+5.6256875000e+00		1.2872129414e-05
+6.5632187500e+00		4.0935378310e-06
+7.5007500000e+00		5.0880797993e-07
+8.4382812500e+00		7.9430714029e-11
+9.3758125000e+00		1.0615134246e-12
+1.0313343750e+01		1.0000000000e-12
+1.1250875000e+01		1.0025498237e-12
+1.2188406250e+01		1.0000000000e-12
+1.3125937500e+01		1.0000194849e-12
+1.4063468750e+01		1.0000031739e-12
+1.5001000000e+01		1.0000684179e-12
+
+
+"Time = 2.1094453125e+00
+-1.5000000000e+01		1.0000671648e-12
+-1.4062468750e+01		1.0000054947e-12
+-1.3124937500e+01		1.0000262474e-12
+-1.2187406250e+01		1.0000000000e-12
+-1.1249875000e+01		1.0037215572e-12
+-1.0312343750e+01		1.0000000000e-12
+-9.3748125000e+00		1.0831527053e-12
+-8.4372812500e+00		1.0965415395e-10
+-7.4997500000e+00		5.0781926300e-07
+-6.5622187500e+00		4.0943651679e-06
+-5.6246875000e+00		1.2862824645e-05
+-4.6871562500e+00		2.9032604962e-05
+-3.7496250000e+00		5.4004522048e-05
+-2.8120937500e+00		8.6839657930e-05
+-1.8745625000e+00		1.2235335665e-04
+-9.3703125000e-01		1.5124288144e-04
+5.0000000000e-04		1.6084206838e-04
+9.3803125000e-01		1.5122180003e-04
+1.8755625000e+00		1.2231755730e-04
+2.8130937500e+00		8.6801818062e-05
+3.7506250000e+00		5.3973232197e-05
+4.6881562500e+00		2.9010780253e-05
+5.6256875000e+00		1.2849889458e-05
+6.5632187500e+00		4.0881967331e-06
+7.5007500000e+00		5.0608682911e-07
+8.4382812500e+00		1.0888495601e-10
+9.3758125000e+00		1.0827392678e-12
+1.0313343750e+01		1.0000000000e-12
+1.1250875000e+01		1.0037208086e-12
+1.2188406250e+01		1.0000000000e-12
+1.3125937500e+01		1.0000262390e-12
+1.4063468750e+01		1.0000054927e-12
+1.5001000000e+01		1.0000671463e-12
+
+
+"Time = 2.4610195312e+00
+-1.5000000000e+01		1.0000666543e-12
+-1.4062468750e+01		1.0000086789e-12
+-1.3124937500e+01		1.0000338140e-12
+-1.2187406250e+01		1.0000000000e-12
+-1.1249875000e+01		1.0051492344e-12
+-1.0312343750e+01		1.0000000000e-12
+-9.3748125000e+00		1.1070331390e-12
+-8.4372812500e+00		1.4344003938e-10
+-7.4997500000e+00		5.0520811791e-07
+-6.5622187500e+00		4.0896690759e-06
+-5.6246875000e+00		1.2840870845e-05
+-4.6871562500e+00		2.8986420154e-05
+-3.7496250000e+00		5.3913793919e-05
+-2.8120937500e+00		8.6695910281e-05
+-1.8745625000e+00		1.2214636542e-04
+-9.3703125000e-01		1.5102752827e-04
+5.0000000000e-04		1.6041223256e-04
+9.3803125000e-01		1.5100638031e-04
+1.8755625000e+00		1.2211071794e-04
+2.8130937500e+00		8.6658126365e-05
+3.7506250000e+00		5.3882560810e-05
+4.6881562500e+00		2.8964630536e-05
+5.6256875000e+00		1.2827956626e-05
+6.5632187500e+00		4.0835191474e-06
+7.5007500000e+00		5.0348708954e-07
+8.4382812500e+00		1.4241764379e-10
+9.3758125000e+00		1.1065035901e-12
+1.0313343750e+01		1.0000000000e-12
+1.1250875000e+01		1.0051481953e-12
+1.2188406250e+01		1.0000000000e-12
+1.3125937500e+01		1.0000338033e-12
+1.4063468750e+01		1.0000086758e-12
+1.5001000000e+01		1.0000666359e-12
diff --git a/test/GRHydro_test_tov_ppm/press_y_[16][16].xg b/test/GRHydro_test_tov_ppm/press_y_[16][16].xg
new file mode 100644
index 0000000..e3ce88a
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/press_y_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-1.5000000000e+01		1.0000000000e-12
+-1.4062468750e+01		1.0000000000e-12
+-1.3124937500e+01		1.0000000000e-12
+-1.2187406250e+01		1.0000000000e-12
+-1.1249875000e+01		1.0000000000e-12
+-1.0312343750e+01		1.0000000000e-12
+-9.3748125000e+00		1.0000000000e-12
+-8.4372812500e+00		1.0000000000e-12
+-7.4997500000e+00		5.2605173583e-07
+-6.5622187500e+00		4.1315900663e-06
+-5.6246875000e+00		1.2995946174e-05
+-4.6871562500e+00		2.9335030675e-05
+-3.7496250000e+00		5.4603112748e-05
+-2.8120937500e+00		8.7842646809e-05
+-1.8745625000e+00		1.2379368326e-04
+-9.3703125000e-01		1.5265624931e-04
+5.0000000000e-04		1.6383998934e-04
+9.3803125000e-01		1.5263328310e-04
+1.8755625000e+00		1.2375708443e-04
+2.8130937500e+00		8.7804360334e-05
+3.7506250000e+00		5.4571420118e-05
+4.6881562500e+00		2.9312961502e-05
+5.6256875000e+00		1.2982880569e-05
+6.5632187500e+00		4.1253437891e-06
+7.5007500000e+00		5.2423683754e-07
+8.4382812500e+00		1.0000000000e-12
+9.3758125000e+00		1.0000000000e-12
+1.0313343750e+01		1.0000000000e-12
+1.1250875000e+01		1.0000000000e-12
+1.2188406250e+01		1.0000000000e-12
+1.3125937500e+01		1.0000000000e-12
+1.4063468750e+01		1.0000000000e-12
+1.5001000000e+01		1.0000000000e-12
+
+
+"Time = 3.5157421875e-01
+-1.5000000000e+01		1.0000512798e-12
+-1.4062468750e+01		1.0000002185e-12
+-1.3124937500e+01		1.0000009868e-12
+-1.2187406250e+01		1.0000000000e-12
+-1.1249875000e+01		1.0000000000e-12
+-1.0312343750e+01		1.0000000000e-12
+-9.3748125000e+00		1.0043633101e-12
+-8.4372812500e+00		6.8912518266e-12
+-7.4997500000e+00		5.2270979255e-07
+-6.5622187500e+00		4.1245384660e-06
+-5.6246875000e+00		1.2973928705e-05
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+1.4063468750e+01		1.0000002184e-12
+1.5001000000e+01		1.0000512658e-12
+
+
+"Time = 7.0314843750e-01
+-1.5000000000e+01		1.0000665365e-12
+-1.4062468750e+01		1.0000005372e-12
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+
+
+"Time = 1.0547226562e+00
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+
+
+"Time = 1.4062968750e+00
+-1.5000000000e+01		1.0000699013e-12
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+
+
+"Time = 1.7578710937e+00
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+
+
+"Time = 2.1094453125e+00
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+
+
+"Time = 2.4610195312e+00
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diff --git a/test/GRHydro_test_tov_ppm/press_z_[16][16].xg b/test/GRHydro_test_tov_ppm/press_z_[16][16].xg
new file mode 100644
index 0000000..e3ce88a
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/press_z_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-1.5000000000e+01		1.0000000000e-12
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+
+
+"Time = 3.5157421875e-01
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+
+"Time = 7.0314843750e-01
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+
+"Time = 1.0547226562e+00
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+1.1250875000e+01		1.0009711053e-12
+1.2188406250e+01		1.0000000000e-12
+1.3125937500e+01		1.0000081192e-12
+1.4063468750e+01		1.0000009105e-12
+1.5001000000e+01		1.0000702101e-12
+
+
+"Time = 1.4062968750e+00
+-1.5000000000e+01		1.0000699013e-12
+-1.4062468750e+01		1.0000016920e-12
+-1.3124937500e+01		1.0000134320e-12
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+-9.3748125000e+00		1.0429142125e-12
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+-7.4997500000e+00		5.1340445659e-07
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+9.3803125000e-01		1.5169059466e-04
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+2.8130937500e+00		8.7128701485e-05
+3.7506250000e+00		5.4172667222e-05
+4.6881562500e+00		2.9110523947e-05
+5.6256875000e+00		1.2894475812e-05
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+7.5007500000e+00		5.1164721058e-07
+8.4382812500e+00		5.4290640587e-11
+9.3758125000e+00		1.0427117183e-12
+1.0313343750e+01		1.0000000000e-12
+1.1250875000e+01		1.0016289387e-12
+1.2188406250e+01		1.0000000000e-12
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+1.4063468750e+01		1.0000016913e-12
+1.5001000000e+01		1.0000698822e-12
+
+
+"Time = 1.7578710937e+00
+-1.5000000000e+01		1.0000684367e-12
+-1.4062468750e+01		1.0000031751e-12
+-1.3124937500e+01		1.0000194911e-12
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+4.6881562500e+00		2.9060224647e-05
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+7.5007500000e+00		5.0880797993e-07
+8.4382812500e+00		7.9430714029e-11
+9.3758125000e+00		1.0615134246e-12
+1.0313343750e+01		1.0000000000e-12
+1.1250875000e+01		1.0025498237e-12
+1.2188406250e+01		1.0000000000e-12
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+1.4063468750e+01		1.0000031739e-12
+1.5001000000e+01		1.0000684179e-12
+
+
+"Time = 2.1094453125e+00
+-1.5000000000e+01		1.0000671648e-12
+-1.4062468750e+01		1.0000054947e-12
+-1.3124937500e+01		1.0000262474e-12
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+7.5007500000e+00		5.0608682911e-07
+8.4382812500e+00		1.0888495601e-10
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+1.2188406250e+01		1.0000000000e-12
+1.3125937500e+01		1.0000262390e-12
+1.4063468750e+01		1.0000054927e-12
+1.5001000000e+01		1.0000671463e-12
+
+
+"Time = 2.4610195312e+00
+-1.5000000000e+01		1.0000666543e-12
+-1.4062468750e+01		1.0000086789e-12
+-1.3124937500e+01		1.0000338140e-12
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+7.5007500000e+00		5.0348708954e-07
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+1.4063468750e+01		1.0000086758e-12
+1.5001000000e+01		1.0000666359e-12
diff --git a/test/GRHydro_test_tov_ppm/rho_3D_diagonal.xg b/test/GRHydro_test_tov_ppm/rho_3D_diagonal.xg
new file mode 100644
index 0000000..663c42e
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/rho_3D_diagonal.xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-2.5980762114e+01		1.0000000000e-07
+-2.4356910355e+01		1.0000000000e-07
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+2.4358642406e+01		1.0000000000e-07
+2.5982494164e+01		1.0000000000e-07
+
+
+"Time = 3.5157421875e-01
+-2.5980762114e+01		1.0000011295e-07
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+
+
+"Time = 7.0314843750e-01
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+
+
+"Time = 1.0547226562e+00
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+2.4358642406e+01		1.0000002836e-07
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+
+
+"Time = 1.4062968750e+00
+-2.5980762114e+01		1.0000016569e-07
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+
+
+"Time = 1.7578710937e+00
+-2.5980762114e+01		1.0000018466e-07
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+
+
+"Time = 2.1094453125e+00
+-2.5980762114e+01		1.0000020942e-07
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+-6.4945410093e+00		2.1359689511e-04
+-4.8706892506e+00		5.0456602633e-04
+-3.2468374920e+00		8.4673904926e-04
+-1.6229857333e+00		1.1569679078e-03
+8.6602540378e-04		1.2682352636e-03
+1.6247177841e+00		1.1567281588e-03
+3.2485695428e+00		8.4637377910e-04
+4.8724213015e+00		5.0421953505e-04
+6.4962730601e+00		2.1332748125e-04
+8.1201248188e+00		3.1290909745e-06
+9.7439765775e+00		1.0000000000e-07
+1.1367828336e+01		1.0000000000e-07
+1.2991680095e+01		1.0000000000e-07
+1.4615531854e+01		1.0000000000e-07
+1.6239383612e+01		1.0000000000e-07
+1.7863235371e+01		1.0001843378e-07
+1.9487087130e+01		1.0003143487e-07
+2.1110938888e+01		1.0000000000e-07
+2.2734790647e+01		1.0000013111e-07
+2.4358642406e+01		1.0000010773e-07
+2.5982494164e+01		1.0000020942e-07
+
+
+"Time = 2.4610195312e+00
+-2.5980762114e+01		1.0000023976e-07
+-2.4356910355e+01		1.0000014387e-07
+-2.2733058596e+01		1.0000016916e-07
+-2.1109206837e+01		1.0000000000e-07
+-1.9485355079e+01		1.0000000000e-07
+-1.7861503320e+01		1.0003652875e-07
+-1.6237651561e+01		1.0002156962e-07
+-1.4613799803e+01		1.0000000000e-07
+-1.2989948044e+01		1.0000000000e-07
+-1.1366096285e+01		1.0000000000e-07
+-9.7422445267e+00		1.0000000000e-07
+-8.1183927680e+00		3.6364704586e-06
+-6.4945410093e+00		2.1353964227e-04
+-4.8706892506e+00		5.0459367774e-04
+-3.2468374920e+00		8.4680335082e-04
+-1.6229857333e+00		1.1575625864e-03
+8.6602540378e-04		1.2665395081e-03
+1.6247177841e+00		1.1573216682e-03
+3.2485695428e+00		8.4643887131e-04
+4.8724213015e+00		5.0424708348e-04
+6.4962730601e+00		2.1327040338e-04
+8.1201248188e+00		3.4878579557e-06
+9.7439765775e+00		1.0000000000e-07
+1.1367828336e+01		1.0000000000e-07
+1.2991680095e+01		1.0000000000e-07
+1.4615531854e+01		1.0000000000e-07
+1.6239383612e+01		1.0002156587e-07
+1.7863235371e+01		1.0003652290e-07
+1.9487087130e+01		1.0000000000e-07
+2.1110938888e+01		1.0000000000e-07
+2.2734790647e+01		1.0000016922e-07
+2.4358642406e+01		1.0000014393e-07
+2.5982494164e+01		1.0000023978e-07
diff --git a/test/GRHydro_test_tov_ppm/rho_maximum.xg b/test/GRHydro_test_tov_ppm/rho_maximum.xg
new file mode 100644
index 0000000..ab6be3b
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/rho_maximum.xg
@@ -0,0 +1,9 @@
+"rho v time
+0.0000000000000	0.0012799999584
+0.3515742187500	0.0012780104199
+0.7031484375000	0.0012760090563
+1.0547226562500	0.0012740225734
+1.4062968750000	0.0012720614192
+1.7578710937500	0.0012701111523
+2.1094453125000	0.0012682352636
+2.4610195312500	0.0012665395081
diff --git a/test/GRHydro_test_tov_ppm/rho_minimum.xg b/test/GRHydro_test_tov_ppm/rho_minimum.xg
new file mode 100644
index 0000000..d5fa141
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/rho_minimum.xg
@@ -0,0 +1,9 @@
+"rho v time
+0.0000000000000	0.0000001000000
+0.3515742187500	0.0000001000000
+0.7031484375000	0.0000001000000
+1.0547226562500	0.0000001000000
+1.4062968750000	0.0000001000000
+1.7578710937500	0.0000001000000
+2.1094453125000	0.0000001000000
+2.4610195312500	0.0000001000000
diff --git a/test/GRHydro_test_tov_ppm/rho_norm1.xg b/test/GRHydro_test_tov_ppm/rho_norm1.xg
new file mode 100644
index 0000000..a3f1c0d
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/rho_norm1.xg
@@ -0,0 +1,9 @@
+"rho v time
+0.0000000000000	0.0000234653613
+0.3515742187500	0.0000234656489
+0.7031484375000	0.0000234660471
+1.0547226562500	0.0000234665514
+1.4062968750000	0.0000234671556
+1.7578710937500	0.0000234678521
+2.1094453125000	0.0000234686302
+2.4610195312500	0.0000234694816
diff --git a/test/GRHydro_test_tov_ppm/rho_norm2.xg b/test/GRHydro_test_tov_ppm/rho_norm2.xg
new file mode 100644
index 0000000..cd623ea
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/rho_norm2.xg
@@ -0,0 +1,9 @@
+"rho v time
+0.0000000000000	0.0001144690349
+0.3515742187500	0.0001144658058
+0.7031484375000	0.0001144624456
+1.0547226562500	0.0001144589254
+1.4062968750000	0.0001144552017
+1.7578710937500	0.0001144512223
+2.1094453125000	0.0001144469507
+2.4610195312500	0.0001144422969
diff --git a/test/GRHydro_test_tov_ppm/rho_x_[16][16].xg b/test/GRHydro_test_tov_ppm/rho_x_[16][16].xg
new file mode 100644
index 0000000..fc1a756
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/rho_x_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-1.5000000000e+01		1.0000000000e-07
+-1.4062468750e+01		1.0000000000e-07
+-1.3124937500e+01		1.0000000000e-07
+-1.2187406250e+01		1.0000000000e-07
+-1.1249875000e+01		1.0000000000e-07
+-1.0312343750e+01		1.0000000000e-07
+-9.3748125000e+00		1.0000000000e-07
+-8.4372812500e+00		1.0000000000e-07
+-7.4997500000e+00		7.2529424086e-05
+-6.5622187500e+00		2.0326313159e-04
+-5.6246875000e+00		3.6049890672e-04
+-4.6871562500e+00		5.4161822971e-04
+-3.7496250000e+00		7.3893919065e-04
+-2.8120937500e+00		9.3724408138e-04
+-1.8745625000e+00		1.1126260974e-03
+-9.3703125000e-01		1.2355413765e-03
+5.0000000000e-04		1.2799999584e-03
+9.3803125000e-01		1.2354484331e-03
+1.8755625000e+00		1.1124616148e-03
+2.8130937500e+00		9.3703980883e-04
+3.7506250000e+00		7.3872471271e-04
+4.6881562500e+00		5.4141445771e-04
+5.6256875000e+00		3.6031764555e-04
+6.5632187500e+00		2.0310942344e-04
+7.5007500000e+00		7.2404201366e-05
+8.4382812500e+00		1.0000000000e-07
+9.3758125000e+00		1.0000000000e-07
+1.0313343750e+01		1.0000000000e-07
+1.1250875000e+01		1.0000000000e-07
+1.2188406250e+01		1.0000000000e-07
+1.3125937500e+01		1.0000000000e-07
+1.4063468750e+01		1.0000000000e-07
+1.5001000000e+01		1.0000000000e-07
+
+
+"Time = 3.5157421875e-01
+-1.5000000000e+01		1.0000256396e-07
+-1.4062468750e+01		1.0000001092e-07
+-1.3124937500e+01		1.0000004934e-07
+-1.2187406250e+01		1.0000000000e-07
+-1.1249875000e+01		1.0000000000e-07
+-1.0312343750e+01		1.0000000000e-07
+-9.3748125000e+00		1.0021792804e-07
+-8.4372812500e+00		2.6251193928e-07
+-7.4997500000e+00		7.2298671672e-05
+-6.5622187500e+00		2.0308959762e-04
+-5.6246875000e+00		3.6019340229e-04
+-4.6871562500e+00		5.4114907409e-04
+-3.7496250000e+00		7.3826761295e-04
+-2.8120937500e+00		9.3634734507e-04
+-1.8745625000e+00		1.1115227820e-03
+-9.3703125000e-01		1.2346033836e-03
+5.0000000000e-04		1.2780104199e-03
+9.3803125000e-01		1.2345118579e-03
+1.8755625000e+00		1.1113585542e-03
+2.8130937500e+00		9.3614331742e-04
+3.7506250000e+00		7.3805336636e-04
+4.6881562500e+00		5.4094549924e-04
+5.6256875000e+00		3.6001229398e-04
+6.5632187500e+00		2.0293602136e-04
+7.5007500000e+00		7.2174116789e-05
+8.4382812500e+00		2.6188925831e-07
+9.3758125000e+00		1.0021690535e-07
+1.0313343750e+01		1.0000000000e-07
+1.1250875000e+01		1.0000000000e-07
+1.2188406250e+01		1.0000000000e-07
+1.3125937500e+01		1.0000004932e-07
+1.4063468750e+01		1.0000001092e-07
+1.5001000000e+01		1.0000256326e-07
+
+
+"Time = 7.0314843750e-01
+-1.5000000000e+01		1.0000332677e-07
+-1.4062468750e+01		1.0000002686e-07
+-1.3124937500e+01		1.0000019164e-07
+-1.2187406250e+01		1.0000000000e-07
+-1.1249875000e+01		1.0002865919e-07
+-1.0312343750e+01		1.0000000000e-07
+-9.3748125000e+00		1.0068620225e-07
+-8.4372812500e+00		4.2325323650e-07
+-7.4997500000e+00		7.2075415034e-05
+-6.5622187500e+00		2.0292408513e-04
+-5.6246875000e+00		3.5988614434e-04
+-4.6871562500e+00		5.4067924002e-04
+-3.7496250000e+00		7.3759056206e-04
+-2.8120937500e+00		9.3544037853e-04
+-1.8745625000e+00		1.1104203256e-03
+-9.3703125000e-01		1.2336458225e-03
+5.0000000000e-04		1.2760090563e-03
+9.3803125000e-01		1.2335556376e-03
+1.8755625000e+00		1.1102564413e-03
+2.8130937500e+00		9.3523661114e-04
+3.7506250000e+00		7.3737655121e-04
+4.6881562500e+00		5.4047586572e-04
+5.6256875000e+00		3.5970518596e-04
+6.5632187500e+00		2.0277066829e-04
+7.5007500000e+00		7.1951498513e-05
+8.4382812500e+00		4.2201109737e-07
+9.3758125000e+00		1.0068300361e-07
+1.0313343750e+01		1.0000000000e-07
+1.1250875000e+01		1.0002865480e-07
+1.2188406250e+01		1.0000000000e-07
+1.3125937500e+01		1.0000019158e-07
+1.4063468750e+01		1.0000002685e-07
+1.5001000000e+01		1.0000332587e-07
+
+
+"Time = 1.0547226562e+00
+-1.5000000000e+01		1.0000351140e-07
+-1.4062468750e+01		1.0000004554e-07
+-1.3124937500e+01		1.0000040609e-07
+-1.2187406250e+01		1.0000000000e-07
+-1.1249875000e+01		1.0004855213e-07
+-1.0312343750e+01		1.0000000000e-07
+-9.3748125000e+00		1.0133002317e-07
+-8.4372812500e+00		5.8222403345e-07
+-7.4997500000e+00		7.1859839946e-05
+-6.5622187500e+00		2.0276739853e-04
+-5.6246875000e+00		3.5957923858e-04
+-4.6871562500e+00		5.4021304679e-04
+-3.7496250000e+00		7.3691516621e-04
+-2.8120937500e+00		9.3453597074e-04
+-1.8745625000e+00		1.1093297669e-03
+-9.3703125000e-01		1.2326819384e-03
+5.0000000000e-04		1.2740225734e-03
+9.3803125000e-01		1.2325930096e-03
+1.8755625000e+00		1.1091662980e-03
+2.8130937500e+00		9.3433248448e-04
+3.7506250000e+00		7.3670139135e-04
+4.6881562500e+00		5.4000987355e-04
+5.6256875000e+00		3.5939842662e-04
+6.5632187500e+00		2.0261416577e-04
+7.5007500000e+00		7.1736532368e-05
+8.4382812500e+00		5.8036575692e-07
+9.3758125000e+00		1.0132389457e-07
+1.0313343750e+01		1.0000000000e-07
+1.1250875000e+01		1.0004854348e-07
+1.2188406250e+01		1.0000000000e-07
+1.3125937500e+01		1.0000040596e-07
+1.4063468750e+01		1.0000004552e-07
+1.5001000000e+01		1.0000351044e-07
+
+
+"Time = 1.4062968750e+00
+-1.5000000000e+01		1.0000349500e-07
+-1.4062468750e+01		1.0000008460e-07
+-1.3124937500e+01		1.0000067160e-07
+-1.2187406250e+01		1.0000000000e-07
+-1.1249875000e+01		1.0008142943e-07
+-1.0312343750e+01		1.0000000000e-07
+-9.3748125000e+00		1.0212317134e-07
+-8.4372812500e+00		7.3929208501e-07
+-7.4997500000e+00		7.1652247459e-05
+-6.5622187500e+00		2.0261898628e-04
+-5.6246875000e+00		3.5926945355e-04
+-4.6871562500e+00		5.3974466345e-04
+-3.7496250000e+00		7.3623437215e-04
+-2.8120937500e+00		9.3363078754e-04
+-1.8745625000e+00		1.1082475201e-03
+-9.3703125000e-01		1.2317157206e-03
+5.0000000000e-04		1.2720614192e-03
+9.3803125000e-01		1.2316273570e-03
+1.8755625000e+00		1.1080845661e-03
+2.8130937500e+00		9.3342756272e-04
+3.7506250000e+00		7.3602083681e-04
+4.6881562500e+00		5.3954169391e-04
+5.6256875000e+00		3.5908878863e-04
+6.5632187500e+00		2.0246596297e-04
+7.5007500000e+00		7.1529519122e-05
+8.4382812500e+00		7.3682182776e-07
+9.3758125000e+00		1.0211325665e-07
+1.0313343750e+01		1.0000000000e-07
+1.1250875000e+01		1.0008141379e-07
+1.2188406250e+01		1.0000000000e-07
+1.3125937500e+01		1.0000067139e-07
+1.4063468750e+01		1.0000008457e-07
+1.5001000000e+01		1.0000349405e-07
+
+
+"Time = 1.7578710937e+00
+-1.5000000000e+01		1.0000342178e-07
+-1.4062468750e+01		1.0000015875e-07
+-1.3124937500e+01		1.0000097455e-07
+-1.2187406250e+01		1.0000000000e-07
+-1.1249875000e+01		1.0012743529e-07
+-1.0312343750e+01		1.0000000000e-07
+-9.3748125000e+00		1.0304428205e-07
+-8.4372812500e+00		8.9431654645e-07
+-7.4997500000e+00		7.1452956192e-05
+-6.5622187500e+00		2.0247772496e-04
+-5.6246875000e+00		3.5895801928e-04
+-4.6871562500e+00		5.3927812823e-04
+-3.7496250000e+00		7.3555255309e-04
+-2.8120937500e+00		9.3273195047e-04
+-1.8745625000e+00		1.1071688788e-03
+-9.3703125000e-01		1.2307433917e-03
+5.0000000000e-04		1.2701111523e-03
+9.3803125000e-01		1.2306555852e-03
+1.8755625000e+00		1.1070065753e-03
+2.8130937500e+00		9.3252891807e-04
+3.7506250000e+00		7.3533928608e-04
+4.6881562500e+00		5.3907536251e-04
+5.6256875000e+00		3.5877749949e-04
+6.5632187500e+00		2.0232493250e-04
+7.5007500000e+00		7.1330777364e-05
+8.4382812500e+00		8.9123910389e-07
+9.3758125000e+00		1.0302977359e-07
+1.0313343750e+01		1.0000000000e-07
+1.1250875000e+01		1.0012741002e-07
+1.2188406250e+01		1.0000000000e-07
+1.3125937500e+01		1.0000097424e-07
+1.4063468750e+01		1.0000015869e-07
+1.5001000000e+01		1.0000342084e-07
+
+
+"Time = 2.1094453125e+00
+-1.5000000000e+01		1.0000335818e-07
+-1.4062468750e+01		1.0000027474e-07
+-1.3124937500e+01		1.0000131236e-07
+-1.2187406250e+01		1.0000000000e-07
+-1.1249875000e+01		1.0018590506e-07
+-1.0312343750e+01		1.0000000000e-07
+-9.3748125000e+00		1.0407462252e-07
+-8.4372812500e+00		1.0471587938e-06
+-7.4997500000e+00		7.1261438591e-05
+-6.5622187500e+00		2.0234537721e-04
+-5.6246875000e+00		3.5864780280e-04
+-4.6871562500e+00		5.3881912515e-04
+-3.7496250000e+00		7.3487769083e-04
+-2.8120937500e+00		9.3187798520e-04
+-1.8745625000e+00		1.1061345155e-03
+-9.3703125000e-01		1.2298084462e-03
+5.0000000000e-04		1.2682352636e-03
+9.3803125000e-01		1.2297227331e-03
+1.8755625000e+00		1.1059726819e-03
+2.8130937500e+00		9.3167493291e-04
+3.7506250000e+00		7.3466476843e-04
+4.6881562500e+00		5.3861656355e-04
+5.6256875000e+00		3.5846742471e-04
+6.5632187500e+00		2.0219289634e-04
+7.5007500000e+00		7.1139779949e-05
+8.4382812500e+00		1.0434795447e-06
+9.3758125000e+00		1.0405475807e-07
+1.0313343750e+01		1.0000000000e-07
+1.1250875000e+01		1.0018586770e-07
+1.2188406250e+01		1.0000000000e-07
+1.3125937500e+01		1.0000131194e-07
+1.4063468750e+01		1.0000027463e-07
+1.5001000000e+01		1.0000335726e-07
+
+
+"Time = 2.4610195312e+00
+-1.5000000000e+01		1.0000333266e-07
+-1.4062468750e+01		1.0000043394e-07
+-1.3124937500e+01		1.0000169069e-07
+-1.2187406250e+01		1.0000000000e-07
+-1.1249875000e+01		1.0025713114e-07
+-1.0312343750e+01		1.0000000000e-07
+-9.3748125000e+00		1.0521564233e-07
+-8.4372812500e+00		1.1976645581e-06
+-7.4997500000e+00		7.1077993635e-05
+-6.5622187500e+00		2.0222930242e-04
+-5.6246875000e+00		3.5834160859e-04
+-4.6871562500e+00		5.3839038025e-04
+-3.7496250000e+00		7.3426013047e-04
+-2.8120937500e+00		9.3110638641e-04
+-1.8745625000e+00		1.1051984682e-03
+-9.3703125000e-01		1.2289325786e-03
+5.0000000000e-04		1.2665395081e-03
+9.3803125000e-01		1.2288465336e-03
+1.8755625000e+00		1.1050371846e-03
+2.8130937500e+00		9.3090346634e-04
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diff --git a/test/GRHydro_test_tov_ppm/rho_y_[16][16].xg b/test/GRHydro_test_tov_ppm/rho_y_[16][16].xg
new file mode 100644
index 0000000..fc1a756
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/rho_y_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-1.5000000000e+01		1.0000000000e-07
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+
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+"Time = 1.7578710937e+00
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+
+"Time = 2.1094453125e+00
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+
+
+"Time = 2.4610195312e+00
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diff --git a/test/GRHydro_test_tov_ppm/rho_z_[16][16].xg b/test/GRHydro_test_tov_ppm/rho_z_[16][16].xg
new file mode 100644
index 0000000..fc1a756
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/rho_z_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-1.5000000000e+01		1.0000000000e-07
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+
+
+"Time = 3.5157421875e-01
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+
+
+"Time = 7.0314843750e-01
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+
+"Time = 1.0547226562e+00
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+
+"Time = 1.4062968750e+00
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+
+
+"Time = 1.7578710937e+00
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+
+
+"Time = 2.1094453125e+00
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+
+"Time = 2.4610195312e+00
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diff --git a/test/GRHydro_test_tov_ppm/scon[0]_3D_diagonal.xg b/test/GRHydro_test_tov_ppm/scon[0]_3D_diagonal.xg
new file mode 100644
index 0000000..5fc62d0
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/scon[0]_3D_diagonal.xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
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+
+"Time = 3.5157421875e-01
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+6.4962730601e+00		1.1261843874e-07
+8.1201248188e+00		1.3908032835e-08
+9.7439765775e+00		0.0000000000e+00
+1.1367828336e+01		0.0000000000e+00
+1.2991680095e+01		0.0000000000e+00
+1.4615531854e+01		0.0000000000e+00
+1.6239383612e+01		0.0000000000e+00
+1.7863235371e+01		0.0000000000e+00
+1.9487087130e+01		0.0000000000e+00
+2.1110938888e+01		0.0000000000e+00
+2.2734790647e+01		0.0000000000e+00
+2.4358642406e+01		0.0000000000e+00
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 1.7578710937e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		0.0000000000e+00
+-2.2733058596e+01		0.0000000000e+00
+-2.1109206837e+01		0.0000000000e+00
+-1.9485355079e+01		8.5977966162e-11
+-1.7861503320e+01		0.0000000000e+00
+-1.6237651561e+01		0.0000000000e+00
+-1.4613799803e+01		0.0000000000e+00
+-1.2989948044e+01		0.0000000000e+00
+-1.1366096285e+01		0.0000000000e+00
+-9.7422445267e+00		0.0000000000e+00
+-8.1183927680e+00		-9.4197147100e-09
+-6.4945410093e+00		-1.4160445994e-07
+-4.8706892506e+00		-4.0769595614e-07
+-3.2468374920e+00		-1.1384451094e-06
+-1.6229857333e+00		-2.3208823605e-06
+8.6602540378e-04		-2.7585648058e-08
+1.6247177841e+00		2.3459377189e-06
+3.2485695428e+00		1.1372305339e-06
+4.8724213015e+00		4.0731894232e-07
+6.4962730601e+00		1.4144891532e-07
+8.1201248188e+00		1.2721969925e-08
+9.7439765775e+00		0.0000000000e+00
+1.1367828336e+01		0.0000000000e+00
+1.2991680095e+01		0.0000000000e+00
+1.4615531854e+01		0.0000000000e+00
+1.6239383612e+01		0.0000000000e+00
+1.7863235371e+01		0.0000000000e+00
+1.9487087130e+01		-8.5961647789e-11
+2.1110938888e+01		0.0000000000e+00
+2.2734790647e+01		0.0000000000e+00
+2.4358642406e+01		0.0000000000e+00
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 2.1094453125e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		0.0000000000e+00
+-2.2733058596e+01		0.0000000000e+00
+-2.1109206837e+01		0.0000000000e+00
+-1.9485355079e+01		1.7213405047e-10
+-1.7861503320e+01		1.0356933353e-10
+-1.6237651561e+01		0.0000000000e+00
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+-1.2989948044e+01		0.0000000000e+00
+-1.1366096285e+01		0.0000000000e+00
+-9.7422445267e+00		0.0000000000e+00
+-8.1183927680e+00		-6.0791475533e-09
+-6.4945410093e+00		-1.7003195040e-07
+-4.8706892506e+00		-4.7871993590e-07
+-3.2468374920e+00		-1.4242947083e-06
+-1.6229857333e+00		-2.3226819995e-06
+8.6602540378e-04		-3.0962514117e-08
+1.6247177841e+00		2.3526671927e-06
+3.2485695428e+00		1.4220705203e-06
+4.8724213015e+00		4.7826916923e-07
+6.4962730601e+00		1.6984461930e-07
+8.1201248188e+00		9.8517372020e-09
+9.7439765775e+00		0.0000000000e+00
+1.1367828336e+01		0.0000000000e+00
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+1.6239383612e+01		0.0000000000e+00
+1.7863235371e+01		-1.0354777941e-10
+1.9487087130e+01		-1.7210138430e-10
+2.1110938888e+01		0.0000000000e+00
+2.2734790647e+01		0.0000000000e+00
+2.4358642406e+01		0.0000000000e+00
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 2.4610195312e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		0.0000000000e+00
+-2.2733058596e+01		0.0000000000e+00
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+-1.9485355079e+01		0.0000000000e+00
+-1.7861503320e+01		2.0735165210e-10
+-1.6237651561e+01		1.2714150866e-10
+-1.4613799803e+01		0.0000000000e+00
+-1.2989948044e+01		0.0000000000e+00
+-1.1366096285e+01		0.0000000000e+00
+-9.7422445267e+00		0.0000000000e+00
+-8.1183927680e+00		-1.4954310534e-09
+-6.4945410093e+00		-1.9845496285e-07
+-4.8706892506e+00		-5.4541345133e-07
+-3.2468374920e+00		-1.7199710008e-06
+-1.6229857333e+00		-2.1848441579e-06
+8.6602540378e-04		-3.8277323199e-08
+1.6247177841e+00		2.2220057428e-06
+3.2485695428e+00		1.7173124530e-06
+4.8724213015e+00		5.4487756257e-07
+6.4962730601e+00		1.9821943298e-07
+8.1201248188e+00		5.6598283609e-09
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+1.6239383612e+01		-1.2711223030e-10
+1.7863235371e+01		-2.0730850614e-10
+1.9487087130e+01		0.0000000000e+00
+2.1110938888e+01		0.0000000000e+00
+2.2734790647e+01		0.0000000000e+00
+2.4358642406e+01		0.0000000000e+00
+2.5982494164e+01		0.0000000000e+00
diff --git a/test/GRHydro_test_tov_ppm/scon[0]_maximum.xg b/test/GRHydro_test_tov_ppm/scon[0]_maximum.xg
new file mode 100644
index 0000000..40c3e05
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/scon[0]_maximum.xg
@@ -0,0 +1,9 @@
+"scon[0] v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000008709074
+0.7031484375000	0.0000015581997
+1.0547226562500	0.0000020679601
+1.4062968750000	0.0000023967579
+1.7578710937500	0.0000025068360
+2.1094453125000	0.0000024331558
+2.4610195312500	0.0000029204686
diff --git a/test/GRHydro_test_tov_ppm/scon[0]_minimum.xg b/test/GRHydro_test_tov_ppm/scon[0]_minimum.xg
new file mode 100644
index 0000000..b537648
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/scon[0]_minimum.xg
@@ -0,0 +1,9 @@
+"scon[0] v time
+0.0000000000000	0.0000000000000
+0.3515742187500	-0.0000008652054
+0.7031484375000	-0.0000015474855
+1.0547226562500	-0.0000020528826
+1.4062968750000	-0.0000023739536
+1.7578710937500	-0.0000024772359
+2.1094453125000	-0.0000024355511
+2.4610195312500	-0.0000029234258
diff --git a/test/GRHydro_test_tov_ppm/scon[0]_norm1.xg b/test/GRHydro_test_tov_ppm/scon[0]_norm1.xg
new file mode 100644
index 0000000..c51f6f9
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/scon[0]_norm1.xg
@@ -0,0 +1,9 @@
+"scon[0] v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000000057555
+0.7031484375000	0.0000000112357
+1.0547226562500	0.0000000163924
+1.4062968750000	0.0000000211554
+1.7578710937500	0.0000000254770
+2.1094453125000	0.0000000293510
+2.4610195312500	0.0000000328117
diff --git a/test/GRHydro_test_tov_ppm/scon[0]_norm2.xg b/test/GRHydro_test_tov_ppm/scon[0]_norm2.xg
new file mode 100644
index 0000000..27190f3
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/scon[0]_norm2.xg
@@ -0,0 +1,9 @@
+"scon[0] v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000000370871
+0.7031484375000	0.0000000705676
+1.0547226562500	0.0000001005490
+1.4062968750000	0.0000001267457
+1.7578710937500	0.0000001492288
+2.1094453125000	0.0000001689807
+2.4610195312500	0.0000001869890
diff --git a/test/GRHydro_test_tov_ppm/scon[0]_x_[16][16].xg b/test/GRHydro_test_tov_ppm/scon[0]_x_[16][16].xg
new file mode 100644
index 0000000..313887c
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/scon[0]_x_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		0.0000000000e+00
+-1.3124937500e+01		0.0000000000e+00
+-1.2187406250e+01		0.0000000000e+00
+-1.1249875000e+01		0.0000000000e+00
+-1.0312343750e+01		0.0000000000e+00
+-9.3748125000e+00		0.0000000000e+00
+-8.4372812500e+00		0.0000000000e+00
+-7.4997500000e+00		0.0000000000e+00
+-6.5622187500e+00		0.0000000000e+00
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+-4.6871562500e+00		0.0000000000e+00
+-3.7496250000e+00		0.0000000000e+00
+-2.8120937500e+00		0.0000000000e+00
+-1.8745625000e+00		0.0000000000e+00
+-9.3703125000e-01		0.0000000000e+00
+5.0000000000e-04		0.0000000000e+00
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+1.4063468750e+01		0.0000000000e+00
+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 3.5157421875e-01
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		0.0000000000e+00
+-1.3124937500e+01		0.0000000000e+00
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+-1.0312343750e+01		0.0000000000e+00
+-9.3748125000e+00		7.4566508224e-10
+-8.4372812500e+00		-8.0462522333e-09
+-7.4997500000e+00		-6.5835687344e-09
+-6.5622187500e+00		-1.1476481465e-07
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+-4.6871562500e+00		-2.2909035772e-07
+-3.7496250000e+00		-3.2779870171e-07
+-2.8120937500e+00		-3.7920561345e-07
+-1.8745625000e+00		-3.6344946357e-07
+-9.3703125000e-01		-8.6520544763e-07
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+9.3803125000e-01		8.7090737324e-07
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+5.6256875000e+00		1.3950276888e-07
+6.5632187500e+00		1.1477703176e-07
+7.5007500000e+00		6.3502164417e-09
+8.4382812500e+00		7.9987365822e-09
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+1.4063468750e+01		0.0000000000e+00
+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 7.0314843750e-01
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		0.0000000000e+00
+-1.3124937500e+01		0.0000000000e+00
+-1.2187406250e+01		0.0000000000e+00
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+-7.4997500000e+00		-1.3890435536e-08
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+-5.6246875000e+00		-2.7410776031e-07
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+-2.8120937500e+00		-7.2086224535e-07
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+-9.3703125000e-01		-1.5474855303e-06
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+9.3803125000e-01		1.5581996581e-06
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+2.8130937500e+00		7.2084729263e-07
+3.7506250000e+00		6.3216230402e-07
+4.6881562500e+00		4.4512606598e-07
+5.6256875000e+00		2.7395676009e-07
+6.5632187500e+00		2.2579488619e-07
+7.5007500000e+00		1.3435541768e-08
+8.4382812500e+00		1.4421853675e-08
+9.3758125000e+00		-1.4771261970e-09
+1.0313343750e+01		0.0000000000e+00
+1.1250875000e+01		-4.9813008836e-10
+1.2188406250e+01		0.0000000000e+00
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+1.4063468750e+01		0.0000000000e+00
+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 1.0547226562e+00
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		0.0000000000e+00
+-1.3124937500e+01		0.0000000000e+00
+-1.2187406250e+01		0.0000000000e+00
+-1.1249875000e+01		9.9559315363e-10
+-1.0312343750e+01		0.0000000000e+00
+-9.3748125000e+00		2.2027831219e-09
+-8.4372812500e+00		-1.9446490467e-08
+-7.4997500000e+00		-2.1938890785e-08
+-6.5622187500e+00		-3.3296735003e-07
+-5.6246875000e+00		-4.0348512231e-07
+-4.6871562500e+00		-6.4862303830e-07
+-3.7496250000e+00		-9.1172396988e-07
+-2.8120937500e+00		-1.0222434896e-06
+-1.8745625000e+00		-1.1347867126e-06
+-9.3703125000e-01		-2.0528826278e-06
+5.0000000000e-04		-1.5854397701e-08
+9.3803125000e-01		2.0679601137e-06
+1.8755625000e+00		1.1365026528e-06
+2.8130937500e+00		1.0222499097e-06
+3.7506250000e+00		9.1148069545e-07
+4.6881562500e+00		6.4833023973e-07
+5.6256875000e+00		4.0327000830e-07
+6.5632187500e+00		3.3295423263e-07
+7.5007500000e+00		2.1274212729e-08
+8.4382812500e+00		1.9320903968e-08
+9.3758125000e+00		-2.2026386921e-09
+1.0313343750e+01		0.0000000000e+00
+1.1250875000e+01		-9.9539430487e-10
+1.2188406250e+01		0.0000000000e+00
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+1.4063468750e+01		0.0000000000e+00
+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 1.4062968750e+00
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		0.0000000000e+00
+-1.3124937500e+01		0.0000000000e+00
+-1.2187406250e+01		0.0000000000e+00
+-1.1249875000e+01		1.4920789709e-09
+-1.0312343750e+01		0.0000000000e+00
+-9.3748125000e+00		2.9256933453e-09
+-8.4372812500e+00		-2.2902311476e-08
+-7.4997500000e+00		-3.0801239364e-08
+-6.5622187500e+00		-4.3622680378e-07
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+-1.8745625000e+00		-1.5201748634e-06
+-9.3703125000e-01		-2.3739535793e-06
+5.0000000000e-04		-2.1934903812e-08
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+6.5632187500e+00		4.3618031492e-07
+7.5007500000e+00		2.9937734066e-08
+8.4382812500e+00		2.2745812033e-08
+9.3758125000e+00		-2.9255647347e-09
+1.0313343750e+01		0.0000000000e+00
+1.1250875000e+01		-1.4917809849e-09
+1.2188406250e+01		0.0000000000e+00
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+1.4063468750e+01		0.0000000000e+00
+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 1.7578710937e+00
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		0.0000000000e+00
+-1.3124937500e+01		0.0000000000e+00
+-1.2187406250e+01		0.0000000000e+00
+-1.1249875000e+01		1.9869163867e-09
+-1.0312343750e+01		0.0000000000e+00
+-9.3748125000e+00		3.6488903523e-09
+-8.4372812500e+00		-2.4931474029e-08
+-7.4997500000e+00		-4.0540646959e-08
+-6.5622187500e+00		-5.3554928614e-07
+-5.6246875000e+00		-6.4583108206e-07
+-4.6871562500e+00		-1.0154160308e-06
+-3.7496250000e+00		-1.3887899693e-06
+-2.8120937500e+00		-1.4964136730e-06
+-1.8745625000e+00		-1.9197463033e-06
+-9.3703125000e-01		-2.4772359353e-06
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+9.3803125000e-01		2.5068359586e-06
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+4.6881562500e+00		1.0149816034e-06
+5.6256875000e+00		6.4550387610e-07
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diff --git a/test/GRHydro_test_tov_ppm/scon[0]_y_[16][16].xg b/test/GRHydro_test_tov_ppm/scon[0]_y_[16][16].xg
new file mode 100644
index 0000000..170f139
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/scon[0]_y_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
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diff --git a/test/GRHydro_test_tov_ppm/scon[0]_z_[16][16].xg b/test/GRHydro_test_tov_ppm/scon[0]_z_[16][16].xg
new file mode 100644
index 0000000..d4d7bf4
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/scon[0]_z_[16][16].xg
@@ -0,0 +1,288 @@
+
+
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diff --git a/test/GRHydro_test_tov_ppm/scon[1]_3D_diagonal.xg b/test/GRHydro_test_tov_ppm/scon[1]_3D_diagonal.xg
new file mode 100644
index 0000000..50166c2
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/scon[1]_3D_diagonal.xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
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+8.6602540378e-04		-1.0869907231e-08
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+4.8724213015e+00		1.7165493127e-07
+6.4962730601e+00		5.5109167898e-08
+8.1201248188e+00		1.0705795450e-08
+9.7439765775e+00		0.0000000000e+00
+1.1367828336e+01		0.0000000000e+00
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+2.4358642406e+01		0.0000000000e+00
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 1.0547226562e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		0.0000000000e+00
+-2.2733058596e+01		0.0000000000e+00
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+-9.7422445267e+00		0.0000000000e+00
+-8.1183927680e+00		-1.1227829439e-08
+-6.4945410093e+00		-8.3809646048e-08
+-4.8706892506e+00		-2.5402110961e-07
+-3.2468374920e+00		-6.2145709650e-07
+-1.6229857333e+00		-1.8282754607e-06
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+4.8724213015e+00		2.5377772878e-07
+6.4962730601e+00		8.3713452101e-08
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+9.7439765775e+00		0.0000000000e+00
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+2.4358642406e+01		0.0000000000e+00
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 1.4062968750e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		0.0000000000e+00
+-2.2733058596e+01		0.0000000000e+00
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+-4.8706892506e+00		-3.3280595939e-07
+-3.2468374920e+00		-8.6966217148e-07
+-1.6229857333e+00		-2.1620416561e-06
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+2.4358642406e+01		0.0000000000e+00
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+
+
+"Time = 1.7578710937e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		0.0000000000e+00
+-2.2733058596e+01		0.0000000000e+00
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+-1.9485355079e+01		8.5977966162e-11
+-1.7861503320e+01		0.0000000000e+00
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+-6.4945410093e+00		-1.4160445994e-07
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+2.4358642406e+01		0.0000000000e+00
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+
+
+"Time = 2.1094453125e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		0.0000000000e+00
+-2.2733058596e+01		0.0000000000e+00
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+-1.9485355079e+01		1.7213405047e-10
+-1.7861503320e+01		1.0356933353e-10
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+2.4358642406e+01		0.0000000000e+00
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+
+
+"Time = 2.4610195312e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		0.0000000000e+00
+-2.2733058596e+01		0.0000000000e+00
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+-1.7861503320e+01		2.0735165210e-10
+-1.6237651561e+01		1.2714150866e-10
+-1.4613799803e+01		0.0000000000e+00
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+2.4358642406e+01		0.0000000000e+00
+2.5982494164e+01		0.0000000000e+00
diff --git a/test/GRHydro_test_tov_ppm/scon[1]_maximum.xg b/test/GRHydro_test_tov_ppm/scon[1]_maximum.xg
new file mode 100644
index 0000000..eda21c2
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/scon[1]_maximum.xg
@@ -0,0 +1,9 @@
+"scon[1] v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000008709074
+0.7031484375000	0.0000015581997
+1.0547226562500	0.0000020679601
+1.4062968750000	0.0000023967579
+1.7578710937500	0.0000025068360
+2.1094453125000	0.0000024331558
+2.4610195312500	0.0000029204686
diff --git a/test/GRHydro_test_tov_ppm/scon[1]_minimum.xg b/test/GRHydro_test_tov_ppm/scon[1]_minimum.xg
new file mode 100644
index 0000000..95dc3b6
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/scon[1]_minimum.xg
@@ -0,0 +1,9 @@
+"scon[1] v time
+0.0000000000000	0.0000000000000
+0.3515742187500	-0.0000008652054
+0.7031484375000	-0.0000015474855
+1.0547226562500	-0.0000020528826
+1.4062968750000	-0.0000023739536
+1.7578710937500	-0.0000024772359
+2.1094453125000	-0.0000024355511
+2.4610195312500	-0.0000029234258
diff --git a/test/GRHydro_test_tov_ppm/scon[1]_norm1.xg b/test/GRHydro_test_tov_ppm/scon[1]_norm1.xg
new file mode 100644
index 0000000..d081d52
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/scon[1]_norm1.xg
@@ -0,0 +1,9 @@
+"scon[1] v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000000057555
+0.7031484375000	0.0000000112357
+1.0547226562500	0.0000000163924
+1.4062968750000	0.0000000211554
+1.7578710937500	0.0000000254770
+2.1094453125000	0.0000000293510
+2.4610195312500	0.0000000328117
diff --git a/test/GRHydro_test_tov_ppm/scon[1]_norm2.xg b/test/GRHydro_test_tov_ppm/scon[1]_norm2.xg
new file mode 100644
index 0000000..3add453
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/scon[1]_norm2.xg
@@ -0,0 +1,9 @@
+"scon[1] v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000000370871
+0.7031484375000	0.0000000705676
+1.0547226562500	0.0000001005490
+1.4062968750000	0.0000001267457
+1.7578710937500	0.0000001492288
+2.1094453125000	0.0000001689807
+2.4610195312500	0.0000001869890
diff --git a/test/GRHydro_test_tov_ppm/scon[1]_x_[16][16].xg b/test/GRHydro_test_tov_ppm/scon[1]_x_[16][16].xg
new file mode 100644
index 0000000..7eb8b57
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/scon[1]_x_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		0.0000000000e+00
+-1.3124937500e+01		0.0000000000e+00
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+-7.4997500000e+00		0.0000000000e+00
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+-1.8745625000e+00		0.0000000000e+00
+-9.3703125000e-01		0.0000000000e+00
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+1.4063468750e+01		0.0000000000e+00
+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 3.5157421875e-01
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		0.0000000000e+00
+-1.3124937500e+01		0.0000000000e+00
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+-7.4997500000e+00		-3.9370483351e-11
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+-4.6871562500e+00		-8.5181735251e-10
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+-9.3703125000e-01		-5.1380143447e-09
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+1.4063468750e+01		0.0000000000e+00
+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 7.0314843750e-01
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		0.0000000000e+00
+-1.3124937500e+01		0.0000000000e+00
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+-7.4997500000e+00		-7.8894227411e-11
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+-4.6871562500e+00		-1.6645351906e-09
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+7.5007500000e+00		-7.8727912783e-11
+8.4382812500e+00		-4.4804764299e-13
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+1.0313343750e+01		0.0000000000e+00
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+1.4063468750e+01		0.0000000000e+00
+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 1.0547226562e+00
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		0.0000000000e+00
+-1.3124937500e+01		0.0000000000e+00
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+-9.3748125000e+00		-1.1965634410e-13
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+-7.4997500000e+00		-1.1857462557e-10
+-6.5622187500e+00		-4.5799877287e-10
+-5.6246875000e+00		-1.1568851948e-09
+-4.6871562500e+00		-2.4407586782e-09
+-3.7496250000e+00		-4.5702057866e-09
+-2.8120937500e+00		-7.6627782045e-09
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+-9.3703125000e-01		-1.4589508909e-08
+5.0000000000e-04		-1.5854397701e-08
+9.3803125000e-01		-1.4586896402e-08
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diff --git a/test/GRHydro_test_tov_ppm/scon[1]_y_[16][16].xg b/test/GRHydro_test_tov_ppm/scon[1]_y_[16][16].xg
new file mode 100644
index 0000000..fd405f6
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/scon[1]_y_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
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diff --git a/test/GRHydro_test_tov_ppm/scon[1]_z_[16][16].xg b/test/GRHydro_test_tov_ppm/scon[1]_z_[16][16].xg
new file mode 100644
index 0000000..9e3529f
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/scon[1]_z_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
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+"Time = 2.4610195312e+00
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diff --git a/test/GRHydro_test_tov_ppm/scon[2]_3D_diagonal.xg b/test/GRHydro_test_tov_ppm/scon[2]_3D_diagonal.xg
new file mode 100644
index 0000000..50166c2
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/scon[2]_3D_diagonal.xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
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+2.4358642406e+01		0.0000000000e+00
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+
+
+"Time = 3.5157421875e-01
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		0.0000000000e+00
+-2.2733058596e+01		0.0000000000e+00
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+2.4358642406e+01		0.0000000000e+00
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 7.0314843750e-01
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		0.0000000000e+00
+-2.2733058596e+01		0.0000000000e+00
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+-6.4945410093e+00		-5.5177746629e-08
+-4.8706892506e+00		-1.7182286558e-07
+-3.2468374920e+00		-3.9463580594e-07
+-1.6229857333e+00		-1.3471754194e-06
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+2.4358642406e+01		0.0000000000e+00
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 1.0547226562e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		0.0000000000e+00
+-2.2733058596e+01		0.0000000000e+00
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+-9.7422445267e+00		0.0000000000e+00
+-8.1183927680e+00		-1.1227829439e-08
+-6.4945410093e+00		-8.3809646048e-08
+-4.8706892506e+00		-2.5402110961e-07
+-3.2468374920e+00		-6.2145709650e-07
+-1.6229857333e+00		-1.8282754607e-06
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+4.8724213015e+00		2.5377772878e-07
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+2.4358642406e+01		0.0000000000e+00
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 1.4062968750e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		0.0000000000e+00
+-2.2733058596e+01		0.0000000000e+00
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+-9.7422445267e+00		0.0000000000e+00
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+-6.4945410093e+00		-1.1274383004e-07
+-4.8706892506e+00		-3.3280595939e-07
+-3.2468374920e+00		-8.6966217148e-07
+-1.6229857333e+00		-2.1620416561e-06
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+2.4358642406e+01		0.0000000000e+00
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 1.7578710937e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		0.0000000000e+00
+-2.2733058596e+01		0.0000000000e+00
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+-1.9485355079e+01		8.5977966162e-11
+-1.7861503320e+01		0.0000000000e+00
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+-8.1183927680e+00		-9.4197147100e-09
+-6.4945410093e+00		-1.4160445994e-07
+-4.8706892506e+00		-4.0769595614e-07
+-3.2468374920e+00		-1.1384451094e-06
+-1.6229857333e+00		-2.3208823605e-06
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+2.4358642406e+01		0.0000000000e+00
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 2.1094453125e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		0.0000000000e+00
+-2.2733058596e+01		0.0000000000e+00
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+-1.9485355079e+01		1.7213405047e-10
+-1.7861503320e+01		1.0356933353e-10
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+-4.8706892506e+00		-4.7871993590e-07
+-3.2468374920e+00		-1.4242947083e-06
+-1.6229857333e+00		-2.3226819995e-06
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+6.4962730601e+00		1.6984461930e-07
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+2.4358642406e+01		0.0000000000e+00
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 2.4610195312e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		0.0000000000e+00
+-2.2733058596e+01		0.0000000000e+00
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+-1.9485355079e+01		0.0000000000e+00
+-1.7861503320e+01		2.0735165210e-10
+-1.6237651561e+01		1.2714150866e-10
+-1.4613799803e+01		0.0000000000e+00
+-1.2989948044e+01		0.0000000000e+00
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+-9.7422445267e+00		0.0000000000e+00
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+-4.8706892506e+00		-5.4541345133e-07
+-3.2468374920e+00		-1.7199710008e-06
+-1.6229857333e+00		-2.1848441579e-06
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+3.2485695428e+00		1.7173124530e-06
+4.8724213015e+00		5.4487756257e-07
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+1.6239383612e+01		-1.2711223030e-10
+1.7863235371e+01		-2.0730850614e-10
+1.9487087130e+01		0.0000000000e+00
+2.1110938888e+01		0.0000000000e+00
+2.2734790647e+01		0.0000000000e+00
+2.4358642406e+01		0.0000000000e+00
+2.5982494164e+01		0.0000000000e+00
diff --git a/test/GRHydro_test_tov_ppm/scon[2]_maximum.xg b/test/GRHydro_test_tov_ppm/scon[2]_maximum.xg
new file mode 100644
index 0000000..e28d22f
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/scon[2]_maximum.xg
@@ -0,0 +1,9 @@
+"scon[2] v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000008709074
+0.7031484375000	0.0000015581997
+1.0547226562500	0.0000020679601
+1.4062968750000	0.0000023967579
+1.7578710937500	0.0000025068360
+2.1094453125000	0.0000024331558
+2.4610195312500	0.0000029204686
diff --git a/test/GRHydro_test_tov_ppm/scon[2]_minimum.xg b/test/GRHydro_test_tov_ppm/scon[2]_minimum.xg
new file mode 100644
index 0000000..792ec28
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/scon[2]_minimum.xg
@@ -0,0 +1,9 @@
+"scon[2] v time
+0.0000000000000	0.0000000000000
+0.3515742187500	-0.0000008652054
+0.7031484375000	-0.0000015474855
+1.0547226562500	-0.0000020528826
+1.4062968750000	-0.0000023739536
+1.7578710937500	-0.0000024772359
+2.1094453125000	-0.0000024355511
+2.4610195312500	-0.0000029234258
diff --git a/test/GRHydro_test_tov_ppm/scon[2]_norm1.xg b/test/GRHydro_test_tov_ppm/scon[2]_norm1.xg
new file mode 100644
index 0000000..d5fc589
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/scon[2]_norm1.xg
@@ -0,0 +1,9 @@
+"scon[2] v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000000057555
+0.7031484375000	0.0000000112357
+1.0547226562500	0.0000000163924
+1.4062968750000	0.0000000211554
+1.7578710937500	0.0000000254770
+2.1094453125000	0.0000000293510
+2.4610195312500	0.0000000328117
diff --git a/test/GRHydro_test_tov_ppm/scon[2]_norm2.xg b/test/GRHydro_test_tov_ppm/scon[2]_norm2.xg
new file mode 100644
index 0000000..d62cad9
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/scon[2]_norm2.xg
@@ -0,0 +1,9 @@
+"scon[2] v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0000000370871
+0.7031484375000	0.0000000705676
+1.0547226562500	0.0000001005490
+1.4062968750000	0.0000001267457
+1.7578710937500	0.0000001492288
+2.1094453125000	0.0000001689807
+2.4610195312500	0.0000001869890
diff --git a/test/GRHydro_test_tov_ppm/scon[2]_x_[16][16].xg b/test/GRHydro_test_tov_ppm/scon[2]_x_[16][16].xg
new file mode 100644
index 0000000..95443ef
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/scon[2]_x_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		0.0000000000e+00
+-1.3124937500e+01		0.0000000000e+00
+-1.2187406250e+01		0.0000000000e+00
+-1.1249875000e+01		0.0000000000e+00
+-1.0312343750e+01		0.0000000000e+00
+-9.3748125000e+00		0.0000000000e+00
+-8.4372812500e+00		0.0000000000e+00
+-7.4997500000e+00		0.0000000000e+00
+-6.5622187500e+00		0.0000000000e+00
+-5.6246875000e+00		0.0000000000e+00
+-4.6871562500e+00		0.0000000000e+00
+-3.7496250000e+00		0.0000000000e+00
+-2.8120937500e+00		0.0000000000e+00
+-1.8745625000e+00		0.0000000000e+00
+-9.3703125000e-01		0.0000000000e+00
+5.0000000000e-04		0.0000000000e+00
+9.3803125000e-01		0.0000000000e+00
+1.8755625000e+00		0.0000000000e+00
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+7.5007500000e+00		0.0000000000e+00
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+1.0313343750e+01		0.0000000000e+00
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+1.3125937500e+01		0.0000000000e+00
+1.4063468750e+01		0.0000000000e+00
+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 3.5157421875e-01
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		0.0000000000e+00
+-1.3124937500e+01		0.0000000000e+00
+-1.2187406250e+01		0.0000000000e+00
+-1.1249875000e+01		0.0000000000e+00
+-1.0312343750e+01		0.0000000000e+00
+-9.3748125000e+00		-3.9408306099e-14
+-8.4372812500e+00		-1.4039792236e-13
+-7.4997500000e+00		-3.9370483351e-11
+-6.5622187500e+00		-1.5771830380e-10
+-5.6246875000e+00		-4.0138831376e-10
+-4.6871562500e+00		-8.5181735251e-10
+-3.7496250000e+00		-1.6018040157e-09
+-2.8120937500e+00		-2.6933557579e-09
+-1.8745625000e+00		-3.9997471306e-09
+-9.3703125000e-01		-5.1380143447e-09
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diff --git a/test/GRHydro_test_tov_ppm/scon[2]_y_[16][16].xg b/test/GRHydro_test_tov_ppm/scon[2]_y_[16][16].xg
new file mode 100644
index 0000000..67366fd
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/scon[2]_y_[16][16].xg
@@ -0,0 +1,288 @@
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diff --git a/test/GRHydro_test_tov_ppm/scon[2]_z_[16][16].xg b/test/GRHydro_test_tov_ppm/scon[2]_z_[16][16].xg
new file mode 100644
index 0000000..fd405f6
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/scon[2]_z_[16][16].xg
@@ -0,0 +1,288 @@
+
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+-4.6871562500e+00		-1.1780015752e-06
+-3.7496250000e+00		-1.5791457109e-06
+-2.8120937500e+00		-1.6724944939e-06
+-1.8745625000e+00		-2.3264476810e-06
+-9.3703125000e-01		-2.3832470060e-06
+5.0000000000e-04		-3.0962514117e-08
+9.3803125000e-01		2.4181487269e-06
+1.8755625000e+00		2.3235803898e-06
+2.8130937500e+00		1.6725489319e-06
+3.7506250000e+00		1.5789447966e-06
+4.6881562500e+00		1.1775200076e-06
+5.6256875000e+00		7.5765179243e-07
+6.5632187500e+00		6.3085786143e-07
+7.5007500000e+00		4.9940514643e-08
+8.4382812500e+00		2.5386321202e-08
+9.3758125000e+00		-4.3743774954e-09
+1.0313343750e+01		0.0000000000e+00
+1.1250875000e+01		-2.4788795796e-09
+1.2188406250e+01		0.0000000000e+00
+1.3125937500e+01		0.0000000000e+00
+1.4063468750e+01		0.0000000000e+00
+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 2.4610195312e+00
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		0.0000000000e+00
+-1.3124937500e+01		0.0000000000e+00
+-1.2187406250e+01		0.0000000000e+00
+-1.1249875000e+01		2.9685885773e-09
+-1.0312343750e+01		0.0000000000e+00
+-9.3748125000e+00		5.1024760472e-09
+-8.4372812500e+00		-2.4930812963e-08
+-7.4997500000e+00		-6.2683920231e-08
+-6.5622187500e+00		-7.2270978027e-07
+-5.6246875000e+00		-8.6368967998e-07
+-4.6871562500e+00		-1.3267736722e-06
+-3.7496250000e+00		-1.7414414872e-06
+-2.8120937500e+00		-1.8106838211e-06
+-1.8745625000e+00		-2.7343069826e-06
+-9.3703125000e-01		-2.1245375534e-06
+5.0000000000e-04		-3.8277323199e-08
+9.3803125000e-01		2.1673913574e-06
+1.8755625000e+00		2.7308415887e-06
+2.8130937500e+00		1.8107272450e-06
+3.7506250000e+00		1.7412063108e-06
+4.6881562500e+00		1.3262592158e-06
+5.6256875000e+00		8.6325900135e-07
+6.5632187500e+00		7.2249633630e-07
+7.5007500000e+00		6.1281190380e-08
+8.4382812500e+00		2.4711962930e-08
+9.3758125000e+00		-5.1022650422e-09
+1.0313343750e+01		0.0000000000e+00
+1.1250875000e+01		-2.9680000179e-09
+1.2188406250e+01		0.0000000000e+00
+1.3125937500e+01		0.0000000000e+00
+1.4063468750e+01		0.0000000000e+00
+1.5001000000e+01		0.0000000000e+00
diff --git a/test/GRHydro_test_tov_ppm/tau_3D_diagonal.xg b/test/GRHydro_test_tov_ppm/tau_3D_diagonal.xg
new file mode 100644
index 0000000..8df7268
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/tau_3D_diagonal.xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-2.5980762114e+01		1.1729671931e-12
+-2.4356910355e+01		1.1853326151e-12
+-2.2733058596e+01		1.1995974220e-12
+-2.1109206837e+01		1.2162343870e-12
+-1.9485355079e+01		1.2358868882e-12
+-1.7861503320e+01		1.2594532286e-12
+-1.6237651561e+01		1.2882262552e-12
+-1.4613799803e+01		1.3241355929e-12
+-1.2989948044e+01		1.3701922811e-12
+-1.1366096285e+01		1.4313636440e-12
+-9.7422445267e+00		1.5164529020e-12
+-8.1183927680e+00		8.5672786440e-11
+-6.4945410093e+00		8.3992008728e-06
+-4.8706892506e+00		5.3879035310e-05
+-3.2468374920e+00		1.7588135325e-04
+-1.6229857333e+00		3.6689128665e-04
+8.6602540378e-04		4.7452197913e-04
+1.6247177841e+00		3.6669283379e-04
+3.2485695428e+00		1.7570221661e-04
+4.8724213015e+00		5.3796500439e-05
+6.4962730601e+00		8.3768598762e-06
+8.1201248188e+00		4.7387983507e-11
+9.7439765775e+00		1.5163444739e-12
+1.1367828336e+01		1.4312877247e-12
+1.2991680095e+01		1.3701362326e-12
+1.4615531854e+01		1.3240925516e-12
+1.6239383612e+01		1.2881921812e-12
+1.7863235371e+01		1.2594255934e-12
+1.9487087130e+01		1.2358640295e-12
+2.1110938888e+01		1.2162151682e-12
+2.2734790647e+01		1.1995810398e-12
+2.4358642406e+01		1.1853184859e-12
+2.5982494164e+01		1.1729548829e-12
+
+
+"Time = 3.5157421875e-01
+-2.5980762114e+01		1.1729685179e-12
+-2.4356910355e+01		1.1853326571e-12
+-2.2733058596e+01		1.1995974769e-12
+-2.1109206837e+01		1.2162343438e-12
+-1.9485355079e+01		1.2358868638e-12
+-1.7861503320e+01		1.2594532351e-12
+-1.6237651561e+01		1.2882263149e-12
+-1.4613799803e+01		1.3241357494e-12
+-1.2989948044e+01		1.3701926248e-12
+-1.1366096285e+01		1.4313643809e-12
+-9.7422445267e+00		1.5164545555e-12
+-8.1183927680e+00		2.5220795482e-10
+-6.4945410093e+00		8.3989440691e-06
+-4.8706892506e+00		5.3878695288e-05
+-3.2468374920e+00		1.7588566846e-04
+-1.6229857333e+00		3.6746524330e-04
+8.6602540378e-04		4.7304384870e-04
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+3.2485695428e+00		1.7570656901e-04
+4.8724213015e+00		5.3796162129e-05
+6.4962730601e+00		8.3766031334e-06
+8.1201248188e+00		1.9520942592e-10
+9.7439765775e+00		1.5163461258e-12
+1.1367828336e+01		1.4312884609e-12
+1.2991680095e+01		1.3701365761e-12
+1.4615531854e+01		1.3240927079e-12
+1.6239383612e+01		1.2881922409e-12
+1.7863235371e+01		1.2594255999e-12
+1.9487087130e+01		1.2358640051e-12
+2.1110938888e+01		1.2162151251e-12
+2.2734790647e+01		1.1995810947e-12
+2.4358642406e+01		1.1853185279e-12
+2.5982494164e+01		1.1729562074e-12
+
+
+"Time = 7.0314843750e-01
+-2.5980762114e+01		1.1729688389e-12
+-2.4356910355e+01		1.1853327699e-12
+-2.2733058596e+01		1.1995976370e-12
+-2.1109206837e+01		1.2162342143e-12
+-1.9485355079e+01		1.2358867904e-12
+-1.7861503320e+01		1.2594532544e-12
+-1.6237651561e+01		1.2882264937e-12
+-1.4613799803e+01		1.3241362177e-12
+-1.2989948044e+01		1.3701936535e-12
+-1.1366096285e+01		1.4313665850e-12
+-9.7422445267e+00		1.5164594950e-12
+-8.1183927680e+00		4.8298712298e-10
+-6.4945410093e+00		8.3981608011e-06
+-4.8706892506e+00		5.3877883697e-05
+-3.2468374920e+00		1.7589737712e-04
+-1.6229857333e+00		3.6801946037e-04
+8.6602540378e-04		4.7155196188e-04
+1.6247177841e+00		3.6782486159e-04
+3.2485695428e+00		1.7571838514e-04
+4.8724213015e+00		5.3795356521e-05
+6.4962730601e+00		8.3758211406e-06
+8.1201248188e+00		4.0800255390e-10
+9.7439765775e+00		1.5163510608e-12
+1.1367828336e+01		1.4312906632e-12
+1.2991680095e+01		1.3701376039e-12
+1.4615531854e+01		1.3240931758e-12
+1.6239383612e+01		1.2881924195e-12
+1.7863235371e+01		1.2594256190e-12
+1.9487087130e+01		1.2358639317e-12
+2.1110938888e+01		1.2162149955e-12
+2.2734790647e+01		1.1995812548e-12
+2.4358642406e+01		1.1853186409e-12
+2.5982494164e+01		1.1729565283e-12
+
+
+"Time = 1.0547226562e+00
+-2.5980762114e+01		1.1729689754e-12
+-2.4356910355e+01		1.1853329510e-12
+-2.2733058596e+01		1.1995978851e-12
+-2.1109206837e+01		1.2162339999e-12
+-1.9485355079e+01		1.2358866680e-12
+-1.7861503320e+01		1.2594532860e-12
+-1.6237651561e+01		1.2882267908e-12
+-1.4613799803e+01		1.3241369961e-12
+-1.2989948044e+01		1.3701953625e-12
+-1.1366096285e+01		1.4313702431e-12
+-9.7422445267e+00		1.5164678050e-12
+-8.1183927680e+00		7.5929789821e-10
+-6.4945410093e+00		8.3968255324e-06
+-4.8706892506e+00		5.3877018754e-05
+-3.2468374920e+00		1.7591408302e-04
+-1.6229857333e+00		3.6854852288e-04
+8.6602540378e-04		4.7006762136e-04
+1.6247177841e+00		3.6835568475e-04
+3.2485695428e+00		1.7573526086e-04
+4.8724213015e+00		5.3794503388e-05
+6.4962730601e+00		8.3744893218e-06
+8.1201248188e+00		6.6424954271e-10
+9.7439765775e+00		1.5163593629e-12
+1.1367828336e+01		1.4312943182e-12
+1.2991680095e+01		1.3701393114e-12
+1.4615531854e+01		1.3240939535e-12
+1.6239383612e+01		1.2881927162e-12
+1.7863235371e+01		1.2594256505e-12
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+2.1110938888e+01		1.2162147810e-12
+2.2734790647e+01		1.1995815030e-12
+2.4358642406e+01		1.1853188221e-12
+2.5982494164e+01		1.1729566648e-12
+
+
+"Time = 1.4062968750e+00
+-2.5980762114e+01		1.1729691366e-12
+-2.4356910355e+01		1.1853332009e-12
+-2.2733058596e+01		1.1995982032e-12
+-2.1109206837e+01		1.2162337066e-12
+-1.9485355079e+01		1.2358864965e-12
+-1.7861503320e+01		1.2594533293e-12
+-1.6237651561e+01		1.2882272045e-12
+-1.4613799803e+01		1.3241380811e-12
+-1.2989948044e+01		1.3701977434e-12
+-1.1366096285e+01		1.4313753327e-12
+-9.7422445267e+00		1.5164802562e-12
+-8.1183927680e+00		1.0699092816e-09
+-6.4945410093e+00		8.3948906517e-06
+-4.8706892506e+00		5.3876567255e-05
+-3.2468374920e+00		1.7593321394e-04
+-1.6229857333e+00		3.6905432154e-04
+8.6602540378e-04		4.6859984924e-04
+1.6247177841e+00		3.6886206838e-04
+3.2485695428e+00		1.7575465288e-04
+4.8724213015e+00		5.3794059620e-05
+6.4962730601e+00		8.3725608728e-06
+8.1201248188e+00		9.5859076771e-10
+9.7439765775e+00		1.5163718003e-12
+1.1367828336e+01		1.4312994037e-12
+1.2991680095e+01		1.3701416904e-12
+1.4615531854e+01		1.3240950375e-12
+1.6239383612e+01		1.2881931294e-12
+1.7863235371e+01		1.2594256935e-12
+1.9487087130e+01		1.2358636375e-12
+2.1110938888e+01		1.2162144876e-12
+2.2734790647e+01		1.1995818213e-12
+2.4358642406e+01		1.1853190720e-12
+2.5982494164e+01		1.1729568262e-12
+
+
+"Time = 1.7578710937e+00
+-2.5980762114e+01		1.1729693590e-12
+-2.4356910355e+01		1.1853335163e-12
+-2.2733058596e+01		1.1995985763e-12
+-2.1109206837e+01		1.2162333469e-12
+-1.9485355079e+01		1.3141690469e-12
+-1.7861503320e+01		1.2594533836e-12
+-1.6237651561e+01		1.2882277328e-12
+-1.4613799803e+01		1.3241394680e-12
+-1.2989948044e+01		1.3702007847e-12
+-1.1366096285e+01		1.4313818239e-12
+-9.7422445267e+00		1.5164975532e-12
+-8.1183927680e+00		1.4090445540e-09
+-6.4945410093e+00		8.3922527002e-06
+-4.8706892506e+00		5.3877810428e-05
+-3.2468374920e+00		1.7595154108e-04
+-1.6229857333e+00		3.6954135979e-04
+8.6602540378e-04		4.6713903951e-04
+1.6247177841e+00		3.6934969694e-04
+3.2485695428e+00		1.7577336649e-04
+4.8724213015e+00		5.3795288076e-05
+6.4962730601e+00		8.3699348003e-06
+8.1201248188e+00		1.2809265387e-09
+9.7439765775e+00		1.5163890747e-12
+1.1367828336e+01		1.4313058895e-12
+1.2991680095e+01		1.3701447293e-12
+1.4615531854e+01		1.3240964231e-12
+1.6239383612e+01		1.2881936571e-12
+1.7863235371e+01		1.2594257473e-12
+1.9487087130e+01		1.3141189589e-12
+2.1110938888e+01		1.2162141277e-12
+2.2734790647e+01		1.1995821945e-12
+2.4358642406e+01		1.1853193875e-12
+2.5982494164e+01		1.1729570487e-12
+
+
+"Time = 2.1094453125e+00
+-2.5980762114e+01		1.1729696495e-12
+-2.4356910355e+01		1.1853338915e-12
+-2.2733058596e+01		1.1995989943e-12
+-2.1109206837e+01		1.2162329382e-12
+-1.9485355079e+01		1.5488318832e-12
+-1.7861503320e+01		1.3694402334e-12
+-1.6237651561e+01		1.2882283732e-12
+-1.4613799803e+01		1.3241411506e-12
+-1.2989948044e+01		1.3702044714e-12
+-1.1366096285e+01		1.4313897161e-12
+-9.7422445267e+00		1.5165186201e-12
+-8.1183927680e+00		1.7750551239e-09
+-6.4945410093e+00		8.3887232451e-06
+-4.8706892506e+00		5.3881947386e-05
+-3.2468374920e+00		1.7596753134e-04
+-1.6229857333e+00		3.6997396883e-04
+8.6602540378e-04		4.6573266764e-04
+1.6247177841e+00		3.6978548908e-04
+3.2485695428e+00		1.7578933290e-04
+4.8724213015e+00		5.3799408612e-05
+6.4962730601e+00		8.3664249900e-06
+8.1201248188e+00		1.6286446888e-09
+9.7439765775e+00		1.5164101122e-12
+1.1367828336e+01		1.4313137751e-12
+1.2991680095e+01		1.3701484130e-12
+1.4615531854e+01		1.3240981043e-12
+1.6239383612e+01		1.2881942966e-12
+1.7863235371e+01		1.3693709374e-12
+1.9487087130e+01		1.5487000576e-12
+2.1110938888e+01		1.2162137189e-12
+2.2734790647e+01		1.1995826126e-12
+2.4358642406e+01		1.1853197629e-12
+2.5982494164e+01		1.1729573393e-12
+
+
+"Time = 2.4610195312e+00
+-2.5980762114e+01		1.1729700054e-12
+-2.4356910355e+01		1.1853343204e-12
+-2.2733058596e+01		1.1995994512e-12
+-2.1109206837e+01		1.2162324995e-12
+-1.9485355079e+01		1.2358857329e-12
+-1.7861503320e+01		1.6992833204e-12
+-1.6237651561e+01		1.4477308355e-12
+-1.4613799803e+01		1.3241431213e-12
+-1.2989948044e+01		1.3702087841e-12
+-1.1366096285e+01		1.4313991617e-12
+-9.7422445267e+00		1.5165408645e-12
+-8.1183927680e+00		2.1728125845e-09
+-6.4945410093e+00		8.3843993930e-06
+-4.8706892506e+00		5.3887733994e-05
+-3.2468374920e+00		1.7598875950e-04
+-1.6229857333e+00		3.7032931235e-04
+8.6602540378e-04		4.6445880630e-04
+1.6247177841e+00		3.7013998586e-04
+3.2485695428e+00		1.7581088202e-04
+4.8724213015e+00		5.3805169517e-05
+6.4962730601e+00		8.3621207872e-06
+8.1201248188e+00		2.0042980306e-09
+9.7439765775e+00		1.5164323264e-12
+1.1367828336e+01		1.4313232117e-12
+1.2991680095e+01		1.3701527223e-12
+1.4615531854e+01		1.3241000733e-12
+1.6239383612e+01		1.4476304611e-12
+1.7863235371e+01		1.6990889496e-12
+1.9487087130e+01		1.2358628730e-12
+2.1110938888e+01		1.2162132799e-12
+2.2734790647e+01		1.1995830698e-12
+2.4358642406e+01		1.1853201919e-12
+2.5982494164e+01		1.1729576954e-12
diff --git a/test/GRHydro_test_tov_ppm/tau_maximum.xg b/test/GRHydro_test_tov_ppm/tau_maximum.xg
new file mode 100644
index 0000000..9d0efd5
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/tau_maximum.xg
@@ -0,0 +1,9 @@
+"tau v time
+0.0000000000000	0.0004745219791
+0.3515742187500	0.0004730438487
+0.7031484375000	0.0004715519619
+1.0547226562500	0.0004700676214
+1.4062968750000	0.0004685998492
+1.7578710937500	0.0004671390395
+2.1094453125000	0.0004657326676
+2.4610195312500	0.0004644588063
diff --git a/test/GRHydro_test_tov_ppm/tau_minimum.xg b/test/GRHydro_test_tov_ppm/tau_minimum.xg
new file mode 100644
index 0000000..717b687
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/tau_minimum.xg
@@ -0,0 +1,9 @@
+"tau v time
+0.0000000000000	0.0000000000012
+0.3515742187500	0.0000000000012
+0.7031484375000	0.0000000000012
+1.0547226562500	0.0000000000012
+1.4062968750000	0.0000000000012
+1.7578710937500	0.0000000000012
+2.1094453125000	0.0000000000012
+2.4610195312500	0.0000000000012
diff --git a/test/GRHydro_test_tov_ppm/tau_norm1.xg b/test/GRHydro_test_tov_ppm/tau_norm1.xg
new file mode 100644
index 0000000..e70e38c
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/tau_norm1.xg
@@ -0,0 +1,9 @@
+"tau v time
+0.0000000000000	0.0000030682032
+0.3515742187500	0.0000030680392
+0.7031484375000	0.0000030678484
+1.0547226562500	0.0000030676302
+1.4062968750000	0.0000030673833
+1.7578710937500	0.0000030671072
+2.1094453125000	0.0000030668028
+2.4610195312500	0.0000030664677
diff --git a/test/GRHydro_test_tov_ppm/tau_norm2.xg b/test/GRHydro_test_tov_ppm/tau_norm2.xg
new file mode 100644
index 0000000..3176ed1
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/tau_norm2.xg
@@ -0,0 +1,9 @@
+"tau v time
+0.0000000000000	0.0000227707704
+0.3515742187500	0.0000227688544
+0.7031484375000	0.0000227665085
+1.0547226562500	0.0000227637560
+1.4062968750000	0.0000227605996
+1.7578710937500	0.0000227570469
+2.1094453125000	0.0000227531556
+2.4610195312500	0.0000227488936
diff --git a/test/GRHydro_test_tov_ppm/tau_x_[16][16].xg b/test/GRHydro_test_tov_ppm/tau_x_[16][16].xg
new file mode 100644
index 0000000..8c12307
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/tau_x_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-1.5000000000e+01		1.3148118668e-12
+-1.4062468750e+01		1.3384391219e-12
+-1.3124937500e+01		1.3658740323e-12
+-1.2187406250e+01		1.3981106180e-12
+-1.1249875000e+01		1.4365191094e-12
+-1.0312343750e+01		1.4830410281e-12
+-9.3748125000e+00		1.5405186024e-12
+-8.4372812500e+00		1.6132793503e-12
+-7.4997500000e+00		8.9839564585e-07
+-6.5622187500e+00		7.5557289473e-06
+-5.6246875000e+00		2.5699640320e-05
+-4.6871562500e+00		6.3145110135e-05
+-3.7496250000e+00		1.2815733614e-04
+-2.8120937500e+00		2.2364429501e-04
+-1.8745625000e+00		3.3724878691e-04
+-9.3703125000e-01		4.3513392679e-04
+5.0000000000e-04		4.7452197913e-04
+9.3803125000e-01		4.3505385541e-04
+1.8755625000e+00		3.3712826756e-04
+2.8130937500e+00		2.2352869221e-04
+3.7506250000e+00		1.2807130716e-04
+4.6881562500e+00		6.3091774019e-05
+5.6256875000e+00		2.5671553073e-05
+6.5632187500e+00		7.5437128711e-06
+7.5007500000e+00		8.9523611683e-07
+8.4382812500e+00		1.6131914635e-12
+9.3758125000e+00		1.5404500995e-12
+1.0313343750e+01		1.4829861798e-12
+1.1250875000e+01		1.4364742295e-12
+1.2188406250e+01		1.3980732310e-12
+1.3125937500e+01		1.3658424161e-12
+1.4063468750e+01		1.3384120425e-12
+1.5001000000e+01		1.3147884171e-12
+
+
+"Time = 3.5157421875e-01
+-1.5000000000e+01		1.3148455779e-12
+-1.4062468750e+01		1.3384392681e-12
+-1.3124937500e+01		1.3658747061e-12
+-1.2187406250e+01		1.3981096894e-12
+-1.1249875000e+01		1.4365177820e-12
+-1.0312343750e+01		1.4830390535e-12
+-9.3748125000e+00		2.8972242601e-12
+-8.4372812500e+00		6.6674674070e-11
+-7.4997500000e+00		8.9268807333e-07
+-6.5622187500e+00		7.5428395217e-06
+-5.6246875000e+00		2.5656086435e-05
+-4.6871562500e+00		6.3035693756e-05
+-3.7496250000e+00		1.2792421890e-04
+-2.8120937500e+00		2.2321567972e-04
+-1.8745625000e+00		3.3657820854e-04
+-9.3703125000e-01		4.3446994170e-04
+5.0000000000e-04		4.7304384870e-04
+9.3803125000e-01		4.3439094177e-04
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+2.8130937500e+00		2.2310032254e-04
+3.7506250000e+00		1.2783835922e-04
+4.6881562500e+00		6.2982454915e-05
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+6.5632187500e+00		7.5308440258e-06
+7.5007500000e+00		8.8955525337e-07
+8.4382812500e+00		6.6102777674e-11
+9.3758125000e+00		2.8968133899e-12
+1.0313343750e+01		1.4829842061e-12
+1.1250875000e+01		1.4364729026e-12
+1.2188406250e+01		1.3980723027e-12
+1.3125937500e+01		1.3658430898e-12
+1.4063468750e+01		1.3384121886e-12
+1.5001000000e+01		1.3148221185e-12
+
+
+"Time = 7.0314843750e-01
+-1.5000000000e+01		1.3148556075e-12
+-1.4062468750e+01		1.3384394814e-12
+-1.3124937500e+01		1.3658766498e-12
+-1.2187406250e+01		1.3981069086e-12
+-1.1249875000e+01		2.1157880691e-12
+-1.0312343750e+01		1.4830331668e-12
+-9.3748125000e+00		6.8355060004e-12
+-8.4372812500e+00		1.4096963491e-10
+-7.4997500000e+00		8.8718322281e-07
+-6.5622187500e+00		7.5305695304e-06
+-5.6246875000e+00		2.5612296831e-05
+-4.6871562500e+00		6.2926092984e-05
+-3.7496250000e+00		1.2768893014e-04
+-2.8120937500e+00		2.2278104342e-04
+-1.8745625000e+00		3.3590508344e-04
+-9.3703125000e-01		4.3378613081e-04
+5.0000000000e-04		4.7155196188e-04
+9.3803125000e-01		4.3370815087e-04
+1.8755625000e+00		3.3578521215e-04
+2.8130937500e+00		2.2266594206e-04
+3.7506250000e+00		1.2760324249e-04
+4.6881562500e+00		6.2872952391e-05
+5.6256875000e+00		2.5584304335e-05
+6.5632187500e+00		7.5185961788e-06
+7.5007500000e+00		8.8407593657e-07
+8.4382812500e+00		1.3975960527e-10
+9.3758125000e+00		6.8348865119e-12
+1.0313343750e+01		1.4829783220e-12
+1.1250875000e+01		2.1155074477e-12
+1.2188406250e+01		1.3980695230e-12
+1.3125937500e+01		1.3658450328e-12
+1.4063468750e+01		1.3384124018e-12
+1.5001000000e+01		1.3148321452e-12
+
+
+"Time = 1.0547226562e+00
+-1.5000000000e+01		1.3148580351e-12
+-1.4062468750e+01		1.3384397314e-12
+-1.3124937500e+01		1.3658795789e-12
+-1.2187406250e+01		1.3981023077e-12
+-1.1249875000e+01		4.1464143603e-12
+-1.0312343750e+01		1.4830236388e-12
+-9.3748125000e+00		1.3232569261e-11
+-8.4372812500e+00		2.0099986783e-10
+-7.4997500000e+00		8.8188427373e-07
+-6.5622187500e+00		7.5189783538e-06
+-5.6246875000e+00		2.5568578989e-05
+-4.6871562500e+00		6.2817337636e-05
+-3.7496250000e+00		1.2745402447e-04
+-2.8120937500e+00		2.2234673647e-04
+-1.8745625000e+00		3.3523666513e-04
+-9.3703125000e-01		4.3309275137e-04
+5.0000000000e-04		4.7006762136e-04
+9.3803125000e-01		4.3301573216e-04
+1.8755625000e+00		3.3511718972e-04
+2.8130937500e+00		2.2223190166e-04
+3.7506250000e+00		1.2736850912e-04
+4.6881562500e+00		6.2764295080e-05
+5.6256875000e+00		2.5540633210e-05
+6.5632187500e+00		7.5070284315e-06
+7.5007500000e+00		8.7880134498e-07
+8.4382812500e+00		1.9924051798e-10
+9.3758125000e+00		1.3232348150e-11
+1.0313343750e+01		1.4829687970e-12
+1.1250875000e+01		4.1454285916e-12
+1.2188406250e+01		1.3980649237e-12
+1.3125937500e+01		1.3658479609e-12
+1.4063468750e+01		1.3384126517e-12
+1.5001000000e+01		1.3148345720e-12
+
+
+"Time = 1.4062968750e+00
+-1.5000000000e+01		1.3148578194e-12
+-1.4062468750e+01		1.3384402542e-12
+-1.3124937500e+01		1.3658832055e-12
+-1.2187406250e+01		1.3980959939e-12
+-1.1249875000e+01		7.5201483569e-12
+-1.0312343750e+01		1.4830111120e-12
+-9.3748125000e+00		2.1998254870e-11
+-8.4372812500e+00		2.4800003792e-10
+-7.4997500000e+00		8.7679694295e-07
+-6.5622187500e+00		7.5080255807e-06
+-5.6246875000e+00		2.5524479499e-05
+-4.6871562500e+00		6.2708083278e-05
+-3.7496250000e+00		1.2721711134e-04
+-2.8120937500e+00		2.2191135744e-04
+-1.8745625000e+00		3.3457127693e-04
+-9.3703125000e-01		4.3239364416e-04
+5.0000000000e-04		4.6859984924e-04
+9.3803125000e-01		4.3231710081e-04
+1.8755625000e+00		3.3445225694e-04
+2.8130937500e+00		2.2179678078e-04
+3.7506250000e+00		1.2713177054e-04
+4.6881562500e+00		6.2655139667e-05
+5.6256875000e+00		2.5496580770e-05
+6.5632187500e+00		7.4961004450e-06
+7.5007500000e+00		8.7373718442e-07
+8.4382812500e+00		2.4577328768e-10
+9.3758125000e+00		2.1999570601e-11
+1.0313343750e+01		1.4829562711e-12
+1.1250875000e+01		7.5179917433e-12
+1.2188406250e+01		1.3980586122e-12
+1.3125937500e+01		1.3658515862e-12
+1.4063468750e+01		1.3384131743e-12
+1.5001000000e+01		1.3148343564e-12
+
+
+"Time = 1.7578710937e+00
+-1.5000000000e+01		1.3148568567e-12
+-1.4062468750e+01		1.3384412467e-12
+-1.3124937500e+01		1.3658873434e-12
+-1.2187406250e+01		1.3980881781e-12
+-1.1249875000e+01		1.2218633103e-11
+-1.0312343750e+01		1.4829964716e-12
+-9.3748125000e+00		3.3068019551e-11
+-8.4372812500e+00		2.8560660064e-10
+-7.4997500000e+00		8.7192719127e-07
+-6.5622187500e+00		7.4976290086e-06
+-5.6246875000e+00		2.5480179513e-05
+-4.6871562500e+00		6.2599270886e-05
+-3.7496250000e+00		1.2697972211e-04
+-2.8120937500e+00		2.2147841032e-04
+-1.8745625000e+00		3.3390649690e-04
+-9.3703125000e-01		4.3168721911e-04
+5.0000000000e-04		4.6713903951e-04
+9.3803125000e-01		4.3161114523e-04
+1.8755625000e+00		3.3378801361e-04
+2.8130937500e+00		2.2136405873e-04
+3.7506250000e+00		1.2689456621e-04
+4.6881562500e+00		6.2546426105e-05
+5.6256875000e+00		2.5452327711e-05
+6.5632187500e+00		7.4857297796e-06
+7.5007500000e+00		8.6888941429e-07
+8.4382812500e+00		2.8297980477e-10
+9.3758125000e+00		3.3072298985e-11
+1.0313343750e+01		1.4829416268e-12
+1.1250875000e+01		1.2214853997e-11
+1.2188406250e+01		1.3980507991e-12
+1.3125937500e+01		1.3658557227e-12
+1.4063468750e+01		1.3384141664e-12
+1.5001000000e+01		1.3148333938e-12
+
+
+"Time = 2.1094453125e+00
+-1.5000000000e+01		1.3148560205e-12
+-1.4062468750e+01		1.3384427990e-12
+-1.3124937500e+01		1.3658919575e-12
+-1.2187406250e+01		1.3980791698e-12
+-1.1249875000e+01		1.8214720255e-11
+-1.0312343750e+01		1.4829806567e-12
+-9.3748125000e+00		4.6392577185e-11
+-8.4372812500e+00		3.1777796956e-10
+-7.4997500000e+00		8.6726046600e-07
+-6.5622187500e+00		7.4879202952e-06
+-5.6246875000e+00		2.5436093733e-05
+-4.6871562500e+00		6.2492215621e-05
+-3.7496250000e+00		1.2674460747e-04
+-2.8120937500e+00		2.2106624480e-04
+-1.8745625000e+00		3.3326721388e-04
+-9.3703125000e-01		4.3100504953e-04
+5.0000000000e-04		4.6573266764e-04
+9.3803125000e-01		4.3093051729e-04
+1.8755625000e+00		3.3314915157e-04
+2.8130937500e+00		2.2095201163e-04
+3.7506250000e+00		1.2665966212e-04
+4.6881562500e+00		6.2439469002e-05
+5.6256875000e+00		2.5408288293e-05
+6.5632187500e+00		7.4760523689e-06
+7.5007500000e+00		8.6424352920e-07
+8.4382812500e+00		3.1480377503e-10
+9.3758125000e+00		4.6401363987e-11
+1.0313343750e+01		1.4829258028e-12
+1.1250875000e+01		1.8208883034e-11
+1.2188406250e+01		1.3980417938e-12
+1.3125937500e+01		1.3658603352e-12
+1.4063468750e+01		1.3384157182e-12
+1.5001000000e+01		1.3148325579e-12
+
+
+"Time = 2.4610195312e+00
+-1.5000000000e+01		1.3148556850e-12
+-1.4062468750e+01		1.3384449300e-12
+-1.3124937500e+01		1.3658971249e-12
+-1.2187406250e+01		1.3980693449e-12
+-1.1249875000e+01		2.5470344057e-11
+-1.0312343750e+01		1.4829646893e-12
+-9.3748125000e+00		6.1885817894e-11
+-8.4372812500e+00		3.4832448256e-10
+-7.4997500000e+00		8.6280278038e-07
+-6.5622187500e+00		7.4794437919e-06
+-5.6246875000e+00		2.5392631229e-05
+-4.6871562500e+00		6.2392184208e-05
+-3.7496250000e+00		1.2652911820e-04
+-2.8120937500e+00		2.2069265185e-04
+-1.8745625000e+00		3.3268629196e-04
+-9.3703125000e-01		4.3036332523e-04
+5.0000000000e-04		4.6445880630e-04
+9.3803125000e-01		4.3028862832e-04
+1.8755625000e+00		3.3256868605e-04
+2.8130937500e+00		2.2057859793e-04
+3.7506250000e+00		1.2644432863e-04
+4.6881562500e+00		6.2339523423e-05
+5.6256875000e+00		2.5364871417e-05
+6.5632187500e+00		7.4676104764e-06
+7.5007500000e+00		8.5980549964e-07
+8.4382812500e+00		3.4504101468e-10
+9.3758125000e+00		6.1898798010e-11
+1.0313343750e+01		1.4829098254e-12
+1.1250875000e+01		2.5462036141e-11
+1.2188406250e+01		1.3980319713e-12
+1.3125937500e+01		1.3658655009e-12
+1.4063468750e+01		1.3384178483e-12
+1.5001000000e+01		1.3148322224e-12
diff --git a/test/GRHydro_test_tov_ppm/tau_y_[16][16].xg b/test/GRHydro_test_tov_ppm/tau_y_[16][16].xg
new file mode 100644
index 0000000..0970fbf
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/tau_y_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-1.5000000000e+01		1.3148118668e-12
+-1.4062468750e+01		1.3384391219e-12
+-1.3124937500e+01		1.3658740323e-12
+-1.2187406250e+01		1.3981106180e-12
+-1.1249875000e+01		1.4365191094e-12
+-1.0312343750e+01		1.4830410281e-12
+-9.3748125000e+00		1.5405186024e-12
+-8.4372812500e+00		1.6132793503e-12
+-7.4997500000e+00		8.9839564585e-07
+-6.5622187500e+00		7.5557289473e-06
+-5.6246875000e+00		2.5699640320e-05
+-4.6871562500e+00		6.3145110135e-05
+-3.7496250000e+00		1.2815733614e-04
+-2.8120937500e+00		2.2364429501e-04
+-1.8745625000e+00		3.3724878691e-04
+-9.3703125000e-01		4.3513392679e-04
+5.0000000000e-04		4.7452197913e-04
+9.3803125000e-01		4.3505385541e-04
+1.8755625000e+00		3.3712826756e-04
+2.8130937500e+00		2.2352869221e-04
+3.7506250000e+00		1.2807130716e-04
+4.6881562500e+00		6.3091774019e-05
+5.6256875000e+00		2.5671553073e-05
+6.5632187500e+00		7.5437128711e-06
+7.5007500000e+00		8.9523611683e-07
+8.4382812500e+00		1.6131914635e-12
+9.3758125000e+00		1.5404500995e-12
+1.0313343750e+01		1.4829861798e-12
+1.1250875000e+01		1.4364742295e-12
+1.2188406250e+01		1.3980732310e-12
+1.3125937500e+01		1.3658424161e-12
+1.4063468750e+01		1.3384120425e-12
+1.5001000000e+01		1.3147884171e-12
+
+
+"Time = 3.5157421875e-01
+-1.5000000000e+01		1.3148455779e-12
+-1.4062468750e+01		1.3384392681e-12
+-1.3124937500e+01		1.3658747061e-12
+-1.2187406250e+01		1.3981096894e-12
+-1.1249875000e+01		1.4365177820e-12
+-1.0312343750e+01		1.4830390535e-12
+-9.3748125000e+00		2.8972242601e-12
+-8.4372812500e+00		6.6674674070e-11
+-7.4997500000e+00		8.9268807333e-07
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+
+
+"Time = 7.0314843750e-01
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+
+
+"Time = 1.0547226562e+00
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+
+
+"Time = 1.4062968750e+00
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+
+
+"Time = 1.7578710937e+00
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+
+
+"Time = 2.1094453125e+00
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+
+"Time = 2.4610195312e+00
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diff --git a/test/GRHydro_test_tov_ppm/tau_z_[16][16].xg b/test/GRHydro_test_tov_ppm/tau_z_[16][16].xg
new file mode 100644
index 0000000..0970fbf
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/tau_z_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
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+
+"Time = 3.5157421875e-01
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+
+"Time = 7.0314843750e-01
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+
+"Time = 1.0547226562e+00
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+1.4063468750e+01		1.3384126517e-12
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+
+
+"Time = 1.4062968750e+00
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+
+
+"Time = 1.7578710937e+00
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+
+
+"Time = 2.1094453125e+00
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+
+
+"Time = 2.4610195312e+00
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diff --git a/test/GRHydro_test_tov_ppm/vel[0]_3D_diagonal.xg b/test/GRHydro_test_tov_ppm/vel[0]_3D_diagonal.xg
new file mode 100644
index 0000000..acca7f6
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/vel[0]_3D_diagonal.xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
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+
+"Time = 3.5157421875e-01
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+2.4358642406e+01		0.0000000000e+00
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 2.1094453125e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		0.0000000000e+00
+-2.2733058596e+01		0.0000000000e+00
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+2.4358642406e+01		0.0000000000e+00
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+
+
+"Time = 2.4610195312e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		0.0000000000e+00
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+2.5982494164e+01		0.0000000000e+00
diff --git a/test/GRHydro_test_tov_ppm/vel[0]_maximum.xg b/test/GRHydro_test_tov_ppm/vel[0]_maximum.xg
new file mode 100644
index 0000000..76e0a5a
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/vel[0]_maximum.xg
@@ -0,0 +1,9 @@
+"vel[0] v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0186284031862
+0.7031484375000	0.0198189383719
+1.0547226562500	0.0193043571266
+1.4062968750000	0.0182956329214
+1.7578710937500	0.0179509032802
+2.1094453125000	0.0214282585681
+2.4610195312500	0.0248244434758
diff --git a/test/GRHydro_test_tov_ppm/vel[0]_minimum.xg b/test/GRHydro_test_tov_ppm/vel[0]_minimum.xg
new file mode 100644
index 0000000..3ee44b2
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/vel[0]_minimum.xg
@@ -0,0 +1,9 @@
+"vel[0] v time
+0.0000000000000	0.0000000000000
+0.3515742187500	-0.0186421380522
+0.7031484375000	-0.0198269657333
+1.0547226562500	-0.0193106678262
+1.4062968750000	-0.0183018687493
+1.7578710937500	-0.0179487614367
+2.1094453125000	-0.0214228175058
+2.4610195312500	-0.0248155799494
diff --git a/test/GRHydro_test_tov_ppm/vel[0]_norm1.xg b/test/GRHydro_test_tov_ppm/vel[0]_norm1.xg
new file mode 100644
index 0000000..8d17001
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/vel[0]_norm1.xg
@@ -0,0 +1,9 @@
+"vel[0] v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0001000721027
+0.7031484375000	0.0001525358904
+1.0547226562500	0.0002039342482
+1.4062968750000	0.0002583646406
+1.7578710937500	0.0003184822705
+2.1094453125000	0.0003815826811
+2.4610195312500	0.0004631622057
diff --git a/test/GRHydro_test_tov_ppm/vel[0]_norm2.xg b/test/GRHydro_test_tov_ppm/vel[0]_norm2.xg
new file mode 100644
index 0000000..374aa73
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/vel[0]_norm2.xg
@@ -0,0 +1,9 @@
+"vel[0] v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0007551190261
+0.7031484375000	0.0009755884962
+1.0547226562500	0.0011928087764
+1.4062968750000	0.0014336942674
+1.7578710937500	0.0017037808670
+2.1094453125000	0.0019871271179
+2.4610195312500	0.0022780952848
diff --git a/test/GRHydro_test_tov_ppm/vel[0]_x_[16][16].xg b/test/GRHydro_test_tov_ppm/vel[0]_x_[16][16].xg
new file mode 100644
index 0000000..56d913d
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/vel[0]_x_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		0.0000000000e+00
+-1.3124937500e+01		0.0000000000e+00
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+
+
+"Time = 3.5157421875e-01
+-1.5000000000e+01		0.0000000000e+00
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+1.4063468750e+01		0.0000000000e+00
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+
+
+"Time = 7.0314843750e-01
+-1.5000000000e+01		0.0000000000e+00
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+
+
+"Time = 1.0547226562e+00
+-1.5000000000e+01		0.0000000000e+00
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+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 1.4062968750e+00
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		0.0000000000e+00
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+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 1.7578710937e+00
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		0.0000000000e+00
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+1.4063468750e+01		0.0000000000e+00
+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 2.1094453125e+00
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		0.0000000000e+00
+-1.3124937500e+01		0.0000000000e+00
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+-1.1249875000e+01		1.3528895895e-02
+-1.0312343750e+01		0.0000000000e+00
+-9.3748125000e+00		2.0444367580e-02
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+-7.4997500000e+00		-2.9017031179e-04
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+-9.3703125000e-01		-2.7152370739e-04
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+7.5007500000e+00		2.8370554370e-04
+8.4382812500e+00		1.0960368625e-02
+9.3758125000e+00		-2.0449246093e-02
+1.0313343750e+01		0.0000000000e+00
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+1.4063468750e+01		0.0000000000e+00
+1.5001000000e+01		0.0000000000e+00
+
+
+"Time = 2.4610195312e+00
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diff --git a/test/GRHydro_test_tov_ppm/vel[0]_y_[16][16].xg b/test/GRHydro_test_tov_ppm/vel[0]_y_[16][16].xg
new file mode 100644
index 0000000..4fa0a71
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/vel[0]_y_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
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diff --git a/test/GRHydro_test_tov_ppm/vel[0]_z_[16][16].xg b/test/GRHydro_test_tov_ppm/vel[0]_z_[16][16].xg
new file mode 100644
index 0000000..c6a1f9e
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/vel[0]_z_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
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diff --git a/test/GRHydro_test_tov_ppm/vel[1]_3D_diagonal.xg b/test/GRHydro_test_tov_ppm/vel[1]_3D_diagonal.xg
new file mode 100644
index 0000000..2184096
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/vel[1]_3D_diagonal.xg
@@ -0,0 +1,288 @@
+
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+2.4358642406e+01		0.0000000000e+00
+2.5982494164e+01		0.0000000000e+00
+
+
+"Time = 1.4062968750e+00
+-2.5980762114e+01		0.0000000000e+00
+-2.4356910355e+01		0.0000000000e+00
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+
+
+"Time = 1.7578710937e+00
+-2.5980762114e+01		0.0000000000e+00
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+
+"Time = 2.1094453125e+00
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+
+
+"Time = 2.4610195312e+00
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diff --git a/test/GRHydro_test_tov_ppm/vel[1]_maximum.xg b/test/GRHydro_test_tov_ppm/vel[1]_maximum.xg
new file mode 100644
index 0000000..c344ca6
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/vel[1]_maximum.xg
@@ -0,0 +1,9 @@
+"vel[1] v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0186284031862
+0.7031484375000	0.0198189383719
+1.0547226562500	0.0193043571266
+1.4062968750000	0.0182956329214
+1.7578710937500	0.0179509032802
+2.1094453125000	0.0214282585681
+2.4610195312500	0.0248244434758
diff --git a/test/GRHydro_test_tov_ppm/vel[1]_minimum.xg b/test/GRHydro_test_tov_ppm/vel[1]_minimum.xg
new file mode 100644
index 0000000..4e4972c
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/vel[1]_minimum.xg
@@ -0,0 +1,9 @@
+"vel[1] v time
+0.0000000000000	0.0000000000000
+0.3515742187500	-0.0186421380522
+0.7031484375000	-0.0198269657333
+1.0547226562500	-0.0193106678262
+1.4062968750000	-0.0183018687493
+1.7578710937500	-0.0179487614367
+2.1094453125000	-0.0214228175058
+2.4610195312500	-0.0248155799494
diff --git a/test/GRHydro_test_tov_ppm/vel[1]_norm1.xg b/test/GRHydro_test_tov_ppm/vel[1]_norm1.xg
new file mode 100644
index 0000000..a57bdec
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/vel[1]_norm1.xg
@@ -0,0 +1,9 @@
+"vel[1] v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0001000721027
+0.7031484375000	0.0001525358904
+1.0547226562500	0.0002039342482
+1.4062968750000	0.0002583646406
+1.7578710937500	0.0003184822705
+2.1094453125000	0.0003815826811
+2.4610195312500	0.0004631622057
diff --git a/test/GRHydro_test_tov_ppm/vel[1]_norm2.xg b/test/GRHydro_test_tov_ppm/vel[1]_norm2.xg
new file mode 100644
index 0000000..bd86e20
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/vel[1]_norm2.xg
@@ -0,0 +1,9 @@
+"vel[1] v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0007551190261
+0.7031484375000	0.0009755884962
+1.0547226562500	0.0011928087764
+1.4062968750000	0.0014336942674
+1.7578710937500	0.0017037808670
+2.1094453125000	0.0019871271179
+2.4610195312500	0.0022780952848
diff --git a/test/GRHydro_test_tov_ppm/vel[1]_x_[16][16].xg b/test/GRHydro_test_tov_ppm/vel[1]_x_[16][16].xg
new file mode 100644
index 0000000..10b5c02
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/vel[1]_x_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		0.0000000000e+00
+-1.3124937500e+01		0.0000000000e+00
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+
+
+"Time = 3.5157421875e-01
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+
+
+"Time = 7.0314843750e-01
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+
+
+"Time = 1.0547226562e+00
+-1.5000000000e+01		0.0000000000e+00
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+
+
+"Time = 1.4062968750e+00
+-1.5000000000e+01		0.0000000000e+00
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diff --git a/test/GRHydro_test_tov_ppm/vel[1]_y_[16][16].xg b/test/GRHydro_test_tov_ppm/vel[1]_y_[16][16].xg
new file mode 100644
index 0000000..ddcbad8
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/vel[1]_y_[16][16].xg
@@ -0,0 +1,288 @@
+
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diff --git a/test/GRHydro_test_tov_ppm/vel[1]_z_[16][16].xg b/test/GRHydro_test_tov_ppm/vel[1]_z_[16][16].xg
new file mode 100644
index 0000000..ef6f58a
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/vel[1]_z_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
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diff --git a/test/GRHydro_test_tov_ppm/vel[2]_3D_diagonal.xg b/test/GRHydro_test_tov_ppm/vel[2]_3D_diagonal.xg
new file mode 100644
index 0000000..71a1d30
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/vel[2]_3D_diagonal.xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
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+
+
+"Time = 7.0314843750e-01
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+
+
+"Time = 1.0547226562e+00
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+
+
+"Time = 1.4062968750e+00
+-2.5980762114e+01		0.0000000000e+00
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+
+
+"Time = 1.7578710937e+00
+-2.5980762114e+01		0.0000000000e+00
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+
+
+"Time = 2.1094453125e+00
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+
+
+"Time = 2.4610195312e+00
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diff --git a/test/GRHydro_test_tov_ppm/vel[2]_maximum.xg b/test/GRHydro_test_tov_ppm/vel[2]_maximum.xg
new file mode 100644
index 0000000..abf9b6c
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/vel[2]_maximum.xg
@@ -0,0 +1,9 @@
+"vel[2] v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0186284031862
+0.7031484375000	0.0198189383719
+1.0547226562500	0.0193043571266
+1.4062968750000	0.0182956329214
+1.7578710937500	0.0179509032802
+2.1094453125000	0.0214282585681
+2.4610195312500	0.0248244434758
diff --git a/test/GRHydro_test_tov_ppm/vel[2]_minimum.xg b/test/GRHydro_test_tov_ppm/vel[2]_minimum.xg
new file mode 100644
index 0000000..27f84b4
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/vel[2]_minimum.xg
@@ -0,0 +1,9 @@
+"vel[2] v time
+0.0000000000000	0.0000000000000
+0.3515742187500	-0.0186421380522
+0.7031484375000	-0.0198269657333
+1.0547226562500	-0.0193106678262
+1.4062968750000	-0.0183018687493
+1.7578710937500	-0.0179487614367
+2.1094453125000	-0.0214228175058
+2.4610195312500	-0.0248155799494
diff --git a/test/GRHydro_test_tov_ppm/vel[2]_norm1.xg b/test/GRHydro_test_tov_ppm/vel[2]_norm1.xg
new file mode 100644
index 0000000..208fbb0
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/vel[2]_norm1.xg
@@ -0,0 +1,9 @@
+"vel[2] v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0001000721027
+0.7031484375000	0.0001525358904
+1.0547226562500	0.0002039342482
+1.4062968750000	0.0002583646406
+1.7578710937500	0.0003184822705
+2.1094453125000	0.0003815826811
+2.4610195312500	0.0004631622057
diff --git a/test/GRHydro_test_tov_ppm/vel[2]_norm2.xg b/test/GRHydro_test_tov_ppm/vel[2]_norm2.xg
new file mode 100644
index 0000000..8eb1536
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/vel[2]_norm2.xg
@@ -0,0 +1,9 @@
+"vel[2] v time
+0.0000000000000	0.0000000000000
+0.3515742187500	0.0007551190261
+0.7031484375000	0.0009755884962
+1.0547226562500	0.0011928087764
+1.4062968750000	0.0014336942674
+1.7578710937500	0.0017037808670
+2.1094453125000	0.0019871271179
+2.4610195312500	0.0022780952848
diff --git a/test/GRHydro_test_tov_ppm/vel[2]_x_[16][16].xg b/test/GRHydro_test_tov_ppm/vel[2]_x_[16][16].xg
new file mode 100644
index 0000000..193a861
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/vel[2]_x_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-1.5000000000e+01		0.0000000000e+00
+-1.4062468750e+01		0.0000000000e+00
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+
+
+"Time = 3.5157421875e-01
+-1.5000000000e+01		0.0000000000e+00
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+
+
+"Time = 7.0314843750e-01
+-1.5000000000e+01		0.0000000000e+00
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diff --git a/test/GRHydro_test_tov_ppm/vel[2]_y_[16][16].xg b/test/GRHydro_test_tov_ppm/vel[2]_y_[16][16].xg
new file mode 100644
index 0000000..b81291f
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/vel[2]_y_[16][16].xg
@@ -0,0 +1,288 @@
+
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diff --git a/test/GRHydro_test_tov_ppm/vel[2]_z_[16][16].xg b/test/GRHydro_test_tov_ppm/vel[2]_z_[16][16].xg
new file mode 100644
index 0000000..11ca726
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/vel[2]_z_[16][16].xg
@@ -0,0 +1,288 @@
+
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+5.0000000000e-04		-4.0996694608e-06
+9.3803125000e-01		2.4719935091e-04
+1.8755625000e+00		3.8106209201e-04
+2.8130937500e+00		3.4558197919e-04
+3.7506250000e+00		4.9914772816e-04
+4.6881562500e+00		6.2013199000e-04
+5.6256875000e+00		7.2205615880e-04
+6.5632187500e+00		1.2567374964e-03
+7.5007500000e+00		3.4904857129e-04
+8.4382812500e+00		9.3291620310e-03
+9.3758125000e+00		-2.3590282125e-02
+1.0313343750e+01		0.0000000000e+00
+1.1250875000e+01		-1.6183115105e-02
+1.2188406250e+01		0.0000000000e+00
+1.3125937500e+01		0.0000000000e+00
+1.4063468750e+01		0.0000000000e+00
+1.5001000000e+01		0.0000000000e+00
diff --git a/test/GRHydro_test_tov_ppm/w_lorentz_3D_diagonal.xg b/test/GRHydro_test_tov_ppm/w_lorentz_3D_diagonal.xg
new file mode 100644
index 0000000..da97f23
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/w_lorentz_3D_diagonal.xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-2.5980762114e+01		1.0000000000e+00
+-2.4356910355e+01		1.0000000000e+00
+-2.2733058596e+01		1.0000000000e+00
+-2.1109206837e+01		1.0000000000e+00
+-1.9485355079e+01		1.0000000000e+00
+-1.7861503320e+01		1.0000000000e+00
+-1.6237651561e+01		1.0000000000e+00
+-1.4613799803e+01		1.0000000000e+00
+-1.2989948044e+01		1.0000000000e+00
+-1.1366096285e+01		1.0000000000e+00
+-9.7422445267e+00		1.0000000000e+00
+-8.1183927680e+00		1.0000000000e+00
+-6.4945410093e+00		1.0000000000e+00
+-4.8706892506e+00		1.0000000000e+00
+-3.2468374920e+00		1.0000000000e+00
+-1.6229857333e+00		1.0000000000e+00
+8.6602540378e-04		1.0000000000e+00
+1.6247177841e+00		1.0000000000e+00
+3.2485695428e+00		1.0000000000e+00
+4.8724213015e+00		1.0000000000e+00
+6.4962730601e+00		1.0000000000e+00
+8.1201248188e+00		1.0000000000e+00
+9.7439765775e+00		1.0000000000e+00
+1.1367828336e+01		1.0000000000e+00
+1.2991680095e+01		1.0000000000e+00
+1.4615531854e+01		1.0000000000e+00
+1.6239383612e+01		1.0000000000e+00
+1.7863235371e+01		1.0000000000e+00
+1.9487087130e+01		1.0000000000e+00
+2.1110938888e+01		1.0000000000e+00
+2.2734790647e+01		1.0000000000e+00
+2.4358642406e+01		1.0000000000e+00
+2.5982494164e+01		1.0000000000e+00
+
+
+"Time = 3.5157421875e-01
+-2.5980762114e+01		1.0000000000e+00
+-2.4356910355e+01		1.0000000000e+00
+-2.2733058596e+01		1.0000000000e+00
+-2.1109206837e+01		1.0000000000e+00
+-1.9485355079e+01		1.0000000000e+00
+-1.7861503320e+01		1.0000000000e+00
+-1.6237651561e+01		1.0000000000e+00
+-1.4613799803e+01		1.0000000000e+00
+-1.2989948044e+01		1.0000000000e+00
+-1.1366096285e+01		1.0000000000e+00
+-9.7422445267e+00		1.0000000000e+00
+-8.1183927680e+00		1.0000089593e+00
+-6.4945410093e+00		1.0000000044e+00
+-4.8706892506e+00		1.0000000050e+00
+-3.2468374920e+00		1.0000000047e+00
+-1.6229857333e+00		1.0000000270e+00
+8.6602540378e-04		1.0000000000e+00
+1.6247177841e+00		1.0000000273e+00
+3.2485695428e+00		1.0000000048e+00
+4.8724213015e+00		1.0000000050e+00
+6.4962730601e+00		1.0000000044e+00
+8.1201248188e+00		1.0000159381e+00
+9.7439765775e+00		1.0000000000e+00
+1.1367828336e+01		1.0000000000e+00
+1.2991680095e+01		1.0000000000e+00
+1.4615531854e+01		1.0000000000e+00
+1.6239383612e+01		1.0000000000e+00
+1.7863235371e+01		1.0000000000e+00
+1.9487087130e+01		1.0000000000e+00
+2.1110938888e+01		1.0000000000e+00
+2.2734790647e+01		1.0000000000e+00
+2.4358642406e+01		1.0000000000e+00
+2.5982494164e+01		1.0000000000e+00
+
+
+"Time = 7.0314843750e-01
+-2.5980762114e+01		1.0000000000e+00
+-2.4356910355e+01		1.0000000000e+00
+-2.2733058596e+01		1.0000000000e+00
+-2.1109206837e+01		1.0000000000e+00
+-1.9485355079e+01		1.0000000000e+00
+-1.7861503320e+01		1.0000000000e+00
+-1.6237651561e+01		1.0000000000e+00
+-1.4613799803e+01		1.0000000000e+00
+-1.2989948044e+01		1.0000000000e+00
+-1.1366096285e+01		1.0000000000e+00
+-9.7422445267e+00		1.0000000000e+00
+-8.1183927680e+00		1.0000127045e+00
+-6.4945410093e+00		1.0000000181e+00
+-4.8706892506e+00		1.0000000194e+00
+-3.2468374920e+00		1.0000000217e+00
+-1.6229857333e+00		1.0000000897e+00
+8.6602540378e-04		1.0000000000e+00
+1.6247177841e+00		1.0000000909e+00
+3.2485695428e+00		1.0000000218e+00
+4.8724213015e+00		1.0000000194e+00
+6.4962730601e+00		1.0000000181e+00
+8.1201248188e+00		1.0000210476e+00
+9.7439765775e+00		1.0000000000e+00
+1.1367828336e+01		1.0000000000e+00
+1.2991680095e+01		1.0000000000e+00
+1.4615531854e+01		1.0000000000e+00
+1.6239383612e+01		1.0000000000e+00
+1.7863235371e+01		1.0000000000e+00
+1.9487087130e+01		1.0000000000e+00
+2.1110938888e+01		1.0000000000e+00
+2.2734790647e+01		1.0000000000e+00
+2.4358642406e+01		1.0000000000e+00
+2.5982494164e+01		1.0000000000e+00
+
+
+"Time = 1.0547226562e+00
+-2.5980762114e+01		1.0000000000e+00
+-2.4356910355e+01		1.0000000000e+00
+-2.2733058596e+01		1.0000000000e+00
+-2.1109206837e+01		1.0000000000e+00
+-1.9485355079e+01		1.0000000000e+00
+-1.7861503320e+01		1.0000000000e+00
+-1.6237651561e+01		1.0000000000e+00
+-1.4613799803e+01		1.0000000000e+00
+-1.2989948044e+01		1.0000000000e+00
+-1.1366096285e+01		1.0000000000e+00
+-9.7422445267e+00		1.0000000000e+00
+-8.1183927680e+00		1.0000114773e+00
+-6.4945410093e+00		1.0000000418e+00
+-4.8706892506e+00		1.0000000425e+00
+-3.2468374920e+00		1.0000000539e+00
+-1.6229857333e+00		1.0000001649e+00
+8.6602540378e-04		1.0000000000e+00
+1.6247177841e+00		1.0000001673e+00
+3.2485695428e+00		1.0000000541e+00
+4.8724213015e+00		1.0000000425e+00
+6.4962730601e+00		1.0000000419e+00
+8.1201248188e+00		1.0000187639e+00
+9.7439765775e+00		1.0000000000e+00
+1.1367828336e+01		1.0000000000e+00
+1.2991680095e+01		1.0000000000e+00
+1.4615531854e+01		1.0000000000e+00
+1.6239383612e+01		1.0000000000e+00
+1.7863235371e+01		1.0000000000e+00
+1.9487087130e+01		1.0000000000e+00
+2.1110938888e+01		1.0000000000e+00
+2.2734790647e+01		1.0000000000e+00
+2.4358642406e+01		1.0000000000e+00
+2.5982494164e+01		1.0000000000e+00
+
+
+"Time = 1.4062968750e+00
+-2.5980762114e+01		1.0000000000e+00
+-2.4356910355e+01		1.0000000000e+00
+-2.2733058596e+01		1.0000000000e+00
+-2.1109206837e+01		1.0000000000e+00
+-1.9485355079e+01		1.0000000000e+00
+-1.7861503320e+01		1.0000000000e+00
+-1.6237651561e+01		1.0000000000e+00
+-1.4613799803e+01		1.0000000000e+00
+-1.2989948044e+01		1.0000000000e+00
+-1.1366096285e+01		1.0000000000e+00
+-9.7422445267e+00		1.0000000000e+00
+-8.1183927680e+00		1.0000079559e+00
+-6.4945410093e+00		1.0000000757e+00
+-4.8706892506e+00		1.0000000729e+00
+-3.2468374920e+00		1.0000001056e+00
+-1.6229857333e+00		1.0000002302e+00
+8.6602540378e-04		1.0000000000e+00
+1.6247177841e+00		1.0000002345e+00
+3.2485695428e+00		1.0000001056e+00
+4.8724213015e+00		1.0000000729e+00
+6.4962730601e+00		1.0000000758e+00
+8.1201248188e+00		1.0000140149e+00
+9.7439765775e+00		1.0000000000e+00
+1.1367828336e+01		1.0000000000e+00
+1.2991680095e+01		1.0000000000e+00
+1.4615531854e+01		1.0000000000e+00
+1.6239383612e+01		1.0000000000e+00
+1.7863235371e+01		1.0000000000e+00
+1.9487087130e+01		1.0000000000e+00
+2.1110938888e+01		1.0000000000e+00
+2.2734790647e+01		1.0000000000e+00
+2.4358642406e+01		1.0000000000e+00
+2.5982494164e+01		1.0000000000e+00
+
+
+"Time = 1.7578710937e+00
+-2.5980762114e+01		1.0000000000e+00
+-2.4356910355e+01		1.0000000000e+00
+-2.2733058596e+01		1.0000000000e+00
+-2.1109206837e+01		1.0000000000e+00
+-1.9485355079e+01		1.0000006301e+00
+-1.7861503320e+01		1.0000000000e+00
+-1.6237651561e+01		1.0000000000e+00
+-1.4613799803e+01		1.0000000000e+00
+-1.2989948044e+01		1.0000000000e+00
+-1.1366096285e+01		1.0000000000e+00
+-9.7422445267e+00		1.0000000000e+00
+-8.1183927680e+00		1.0000041848e+00
+-6.4945410093e+00		1.0000001195e+00
+-4.8706892506e+00		1.0000001094e+00
+-3.2468374920e+00		1.0000001809e+00
+-1.6229857333e+00		1.0000002649e+00
+8.6602540378e-04		1.0000000000e+00
+1.6247177841e+00		1.0000002709e+00
+3.2485695428e+00		1.0000001808e+00
+4.8724213015e+00		1.0000001094e+00
+6.4962730601e+00		1.0000001195e+00
+8.1201248188e+00		1.0000085365e+00
+9.7439765775e+00		1.0000000000e+00
+1.1367828336e+01		1.0000000000e+00
+1.2991680095e+01		1.0000000000e+00
+1.4615531854e+01		1.0000000000e+00
+1.6239383612e+01		1.0000000000e+00
+1.7863235371e+01		1.0000000000e+00
+1.9487087130e+01		1.0000006299e+00
+2.1110938888e+01		1.0000000000e+00
+2.2734790647e+01		1.0000000000e+00
+2.4358642406e+01		1.0000000000e+00
+2.5982494164e+01		1.0000000000e+00
+
+
+"Time = 2.1094453125e+00
+-2.5980762114e+01		1.0000000000e+00
+-2.4356910355e+01		1.0000000000e+00
+-2.2733058596e+01		1.0000000000e+00
+-2.1109206837e+01		1.0000000000e+00
+-1.9485355079e+01		1.0000025250e+00
+-1.7861503320e+01		1.0000008694e+00
+-1.6237651561e+01		1.0000000000e+00
+-1.4613799803e+01		1.0000000000e+00
+-1.2989948044e+01		1.0000000000e+00
+-1.1366096285e+01		1.0000000000e+00
+-9.7422445267e+00		1.0000000000e+00
+-8.1183927680e+00		1.0000013694e+00
+-6.4945410093e+00		1.0000001723e+00
+-4.8706892506e+00		1.0000001509e+00
+-3.2468374920e+00		1.0000002832e+00
+-1.6229857333e+00		1.0000002650e+00
+8.6602540378e-04		1.0000000000e+00
+1.6247177841e+00		1.0000002721e+00
+3.2485695428e+00		1.0000002827e+00
+4.8724213015e+00		1.0000001509e+00
+6.4962730601e+00		1.0000001724e+00
+8.1201248188e+00		1.0000039536e+00
+9.7439765775e+00		1.0000000000e+00
+1.1367828336e+01		1.0000000000e+00
+1.2991680095e+01		1.0000000000e+00
+1.4615531854e+01		1.0000000000e+00
+1.6239383612e+01		1.0000000000e+00
+1.7863235371e+01		1.0000008691e+00
+1.9487087130e+01		1.0000025241e+00
+2.1110938888e+01		1.0000000000e+00
+2.2734790647e+01		1.0000000000e+00
+2.4358642406e+01		1.0000000000e+00
+2.5982494164e+01		1.0000000000e+00
+
+
+"Time = 2.4610195312e+00
+-2.5980762114e+01		1.0000000000e+00
+-2.4356910355e+01		1.0000000000e+00
+-2.2733058596e+01		1.0000000000e+00
+-2.1109206837e+01		1.0000000000e+00
+-1.9485355079e+01		1.0000000000e+00
+-1.7861503320e+01		1.0000034835e+00
+-1.6237651561e+01		1.0000012335e+00
+-1.4613799803e+01		1.0000000000e+00
+-1.2989948044e+01		1.0000000000e+00
+-1.1366096285e+01		1.0000000000e+00
+-9.7422445267e+00		1.0000000000e+00
+-8.1183927680e+00		1.0000000674e+00
+-6.4945410093e+00		1.0000002348e+00
+-4.8706892506e+00		1.0000001958e+00
+-3.2468374920e+00		1.0000004129e+00
+-1.6229857333e+00		1.0000002342e+00
+8.6602540378e-04		1.0000000001e+00
+1.6247177841e+00		1.0000002424e+00
+3.2485695428e+00		1.0000004122e+00
+4.8724213015e+00		1.0000001958e+00
+6.4962730601e+00		1.0000002350e+00
+8.1201248188e+00		1.0000010501e+00
+9.7439765775e+00		1.0000000000e+00
+1.1367828336e+01		1.0000000000e+00
+1.2991680095e+01		1.0000000000e+00
+1.4615531854e+01		1.0000000000e+00
+1.6239383612e+01		1.0000012330e+00
+1.7863235371e+01		1.0000034823e+00
+1.9487087130e+01		1.0000000000e+00
+2.1110938888e+01		1.0000000000e+00
+2.2734790647e+01		1.0000000000e+00
+2.4358642406e+01		1.0000000000e+00
+2.5982494164e+01		1.0000000000e+00
diff --git a/test/GRHydro_test_tov_ppm/w_lorentz_maximum.xg b/test/GRHydro_test_tov_ppm/w_lorentz_maximum.xg
new file mode 100644
index 0000000..3e8e1ce
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/w_lorentz_maximum.xg
@@ -0,0 +1,9 @@
+"w_lorentz v time
+0.0000000000000	1.0000000000000
+0.3515742187500	1.0002411863535
+0.7031484375000	1.0002732458511
+1.0547226562500	1.0002603744728
+1.4062968750000	1.0002359204742
+1.7578710937500	1.0002521459653
+2.1094453125000	1.0003598757394
+2.4610195312500	1.0004839595632
diff --git a/test/GRHydro_test_tov_ppm/w_lorentz_minimum.xg b/test/GRHydro_test_tov_ppm/w_lorentz_minimum.xg
new file mode 100644
index 0000000..6874066
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/w_lorentz_minimum.xg
@@ -0,0 +1,9 @@
+"w_lorentz v time
+0.0000000000000	1.0000000000000
+0.3515742187500	1.0000000000000
+0.7031484375000	1.0000000000000
+1.0547226562500	1.0000000000000
+1.4062968750000	1.0000000000000
+1.7578710937500	1.0000000000000
+2.1094453125000	1.0000000000000
+2.4610195312500	1.0000000000000
diff --git a/test/GRHydro_test_tov_ppm/w_lorentz_norm1.xg b/test/GRHydro_test_tov_ppm/w_lorentz_norm1.xg
new file mode 100644
index 0000000..254515e
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/w_lorentz_norm1.xg
@@ -0,0 +1,9 @@
+"w_lorentz v time
+0.0000000000000	1.0000000000000
+0.3515742187500	1.0000011777440
+0.7031484375000	1.0000019550816
+1.0547226562500	1.0000029063903
+1.4062968750000	1.0000041826702
+1.7578710937500	1.0000058902107
+2.1094453125000	1.0000079983135
+2.4610195312500	1.0000105000143
diff --git a/test/GRHydro_test_tov_ppm/w_lorentz_norm2.xg b/test/GRHydro_test_tov_ppm/w_lorentz_norm2.xg
new file mode 100644
index 0000000..fa8e291
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/w_lorentz_norm2.xg
@@ -0,0 +1,9 @@
+"w_lorentz v time
+0.0000000000000	1.0000000000000
+0.3515742187500	1.0000011778078
+0.7031484375000	1.0000019551793
+1.0547226562500	1.0000029065329
+1.4062968750000	1.0000041829384
+1.7578710937500	1.0000058907536
+2.1094453125000	1.0000079993522
+2.4610195312500	1.0000105018359
diff --git a/test/GRHydro_test_tov_ppm/w_lorentz_x_[16][16].xg b/test/GRHydro_test_tov_ppm/w_lorentz_x_[16][16].xg
new file mode 100644
index 0000000..61fcbd6
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/w_lorentz_x_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
+-1.5000000000e+01		1.0000000000e+00
+-1.4062468750e+01		1.0000000000e+00
+-1.3124937500e+01		1.0000000000e+00
+-1.2187406250e+01		1.0000000000e+00
+-1.1249875000e+01		1.0000000000e+00
+-1.0312343750e+01		1.0000000000e+00
+-9.3748125000e+00		1.0000000000e+00
+-8.4372812500e+00		1.0000000000e+00
+-7.4997500000e+00		1.0000000000e+00
+-6.5622187500e+00		1.0000000000e+00
+-5.6246875000e+00		1.0000000000e+00
+-4.6871562500e+00		1.0000000000e+00
+-3.7496250000e+00		1.0000000000e+00
+-2.8120937500e+00		1.0000000000e+00
+-1.8745625000e+00		1.0000000000e+00
+-9.3703125000e-01		1.0000000000e+00
+5.0000000000e-04		1.0000000000e+00
+9.3803125000e-01		1.0000000000e+00
+1.8755625000e+00		1.0000000000e+00
+2.8130937500e+00		1.0000000000e+00
+3.7506250000e+00		1.0000000000e+00
+4.6881562500e+00		1.0000000000e+00
+5.6256875000e+00		1.0000000000e+00
+6.5632187500e+00		1.0000000000e+00
+7.5007500000e+00		1.0000000000e+00
+8.4382812500e+00		1.0000000000e+00
+9.3758125000e+00		1.0000000000e+00
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diff --git a/test/GRHydro_test_tov_ppm/w_lorentz_y_[16][16].xg b/test/GRHydro_test_tov_ppm/w_lorentz_y_[16][16].xg
new file mode 100644
index 0000000..61fcbd6
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/w_lorentz_y_[16][16].xg
@@ -0,0 +1,288 @@
+
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diff --git a/test/GRHydro_test_tov_ppm/w_lorentz_z_[16][16].xg b/test/GRHydro_test_tov_ppm/w_lorentz_z_[16][16].xg
new file mode 100644
index 0000000..61fcbd6
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/w_lorentz_z_[16][16].xg
@@ -0,0 +1,288 @@
+
+
+"Time = 0.0000000000e+00
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+
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+
+
+"Time = 2.4610195312e+00
+-1.5000000000e+01		1.0000000000e+00
+-1.4062468750e+01		1.0000000000e+00
+-1.3124937500e+01		1.0000000000e+00
+-1.2187406250e+01		1.0000000000e+00
+-1.1249875000e+01		1.0001667984e+00
+-1.0312343750e+01		1.0000000000e+00
+-9.3748125000e+00		1.0003711521e+00
+-8.4372812500e+00		1.0000604836e+00
+-7.4997500000e+00		1.0000000907e+00
+-6.5622187500e+00		1.0000011795e+00
+-5.6246875000e+00		1.0000004105e+00
+-4.6871562500e+00		1.0000003204e+00
+-3.7496250000e+00		1.0000002199e+00
+-2.8120937500e+00		1.0000001113e+00
+-1.8745625000e+00		1.0000001419e+00
+-9.3703125000e-01		1.0000000590e+00
+5.0000000000e-04		1.0000000001e+00
+9.3803125000e-01		1.0000000614e+00
+1.8755625000e+00		1.0000001416e+00
+2.8130937500e+00		1.0000001113e+00
+3.7506250000e+00		1.0000002200e+00
+4.6881562500e+00		1.0000003205e+00
+5.6256875000e+00		1.0000004107e+00
+6.5632187500e+00		1.0000011809e+00
+7.5007500000e+00		1.0000000870e+00
+8.4382812500e+00		1.0000598619e+00
+9.3758125000e+00		1.0003713430e+00
+1.0313343750e+01		1.0000000000e+00
+1.1250875000e+01		1.0001667463e+00
+1.2188406250e+01		1.0000000000e+00
+1.3125937500e+01		1.0000000000e+00
+1.4063468750e+01		1.0000000000e+00
+1.5001000000e+01		1.0000000000e+00
diff --git a/test/GRHydro_test_tov_ppm/whisky_test_tov_ppm.par b/test/GRHydro_test_tov_ppm/whisky_test_tov_ppm.par
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/test/GRHydro_test_tov_ppm/whisky_test_tov_ppm.par