subchandra: disable species clipping + better SMALL_X_SAFE

this seems to help the integrator a lot

Author: zingale

Exec/science/subchandra/inputs_2d.N14.coarse

@@ -162,7 +162,8 @@ amr.refine.dencutoff.value_less = 1.e4
 # Microphysics
 
 network.small_x = 1.e-10
-integrator.SMALL_X_SAFE = 1.e-10
+integrator.SMALL_X_SAFE = 1.e-30
+integrator.do_species_clip = 0
 
 integrator.rtol_spec = 1.e-5
 integrator.atol_spec = 1.e-5

Exec/science/subchandra/inputs_2d.NSE

@@ -145,7 +145,8 @@ amr.refine.temperr.max_level = 3
 # Microphysics
 
 network.small_x = 1.e-10
-integrator.SMALL_X_SAFE = 1.e-10
+integrator.SMALL_X_SAFE = 1.e-30
+integrator.do_species_clip = 0
 
 integrator.rtol_spec = 1.e-5
 integrator.atol_spec = 1.e-5

Exec/science/subchandra/inputs_2d.ONe

@@ -163,7 +163,8 @@ amr.refine.dencutoff.value_less = 1.e4
 # Microphysics
 
 network.small_x = 1.e-10
-integrator.SMALL_X_SAFE = 1.e-10
+integrator.SMALL_X_SAFE = 1.e-30
+integrator.do_species_clip = 0
 
 integrator.rtol_spec = 1.e-5
 integrator.atol_spec = 1.e-5

Exec/science/subchandra/inputs_3d.N14.M_WD1.0_M_He0.05

@@ -167,7 +167,8 @@ amr.refine.dencutoff.value_less = 1.e4
 # Microphysics
 
 network.small_x = 1.e-10
-integrator.SMALL_X_SAFE = 1.e-10
+integrator.SMALL_X_SAFE = 1.e-30
+integrator.do_species_clip = 0
 
 integrator.rtol_spec = 1.e-5
 integrator.atol_spec = 1.e-5

Exec/science/subchandra/inputs_3d.N14.coarse

@@ -172,7 +172,8 @@ amr.refine.dencutoff.value_less = 1.e4
 # Microphysics
 
 network.small_x = 1.e-10
-integrator.SMALL_X_SAFE = 1.e-10
+integrator.SMALL_X_SAFE = 1.e-30
+integrator.do_species_clip = 0
 
 integrator.rtol_spec = 1.e-5
 integrator.atol_spec = 1.e-5