Add gridfunctions and boilerplate for vector potential.

git-svn-id: http://svn.einsteintoolkit.org/cactus/EinsteinBase/HydroBase/trunk@59 57fe0bb3-ccba-405f-9b23-de0201f165b7

4 files changed, 155 insertions, 0 deletions

diff --git a/interface.ccl b/interface.ccl
index c183c2a..fa4fcd3 100755
--- a/interface.ccl
+++ b/interface.ccl
@@ -42,6 +42,9 @@ CCTK_REAL temperature type = GF Timelevels = 3 tags='ProlongationParameter="Hydr
 CCTK_REAL entropy     type = GF Timelevels = 3 tags='ProlongationParameter="HydroBase::prolongation_type" tensortypealias="Scalar" interpolator="matter"' "Specific Entropy [k_b/baryon]"
 
 CCTK_REAL Bvec[3] type = GF Timelevels = 3 tags='ProlongationParameter="HydroBase::prolongation_type" tensortypealias="U" tensorparity=-1 interpolator="matter"' "Magnetic field components B^i"
+CCTK_REAL Avec[3] type = GF Timelevels = 3 tags='ProlongationParameter="HydroBase::prolongation_type" tensortypealias="D" jacobian="jacobian" interpolator="matter"' "Vector potential"
+CCTK_REAL Aphi type = GF Timelevels = 3 tags='ProlongationParameter="HydroBase::prolongation_type" tensortypealias="Scalar" jacobian="jacobian" interpolator="matter"' "Electric potential for Lorentz Gauge"
+
 
 # This may become CCTK_BYTE when Carpet enables it by default
 CCTK_INT hydro_excision_mask type = GF Timelevels = 1 tags='Prolongation="None" checkpoint="no"' "Mask for hydro excision"
diff --git a/param.ccl b/param.ccl
index 5267e80..389d481 100755
--- a/param.ccl
+++ b/param.ccl
@@ -59,6 +59,18 @@ KEYWORD initial_Bvec "Initial value for Bvec"
   "zero" :: "initially set to zero"
 } "none"
 
+KEYWORD initial_Avec "Initial value for Avec"
+{
+  "none" :: "inactive"
+  "zero" :: "initially set to zero"
+} "none"
+
+KEYWORD initial_Aphi "Initial value for Aphi"
+{
+  "none" :: "inactive"
+  "zero" :: "initially set to zero"
+} "none"
+
 KEYWORD Bvec_evolution_method "Evolution method for Bvec"
 {
   "none" :: "Evolution for Bvec is disabled"
diff --git a/schedule.ccl b/schedule.ccl
index 2e8207e..3389936 100755
--- a/schedule.ccl
+++ b/schedule.ccl
@@ -15,6 +15,14 @@ if (timelevels == 1)
   {
     STORAGE: Bvec[1]
   }
+  if (!CCTK_EQUALS(initial_Avec, "none"))
+  {
+    STORAGE: Avec[1]
+  }
+  if (!CCTK_EQUALS(initial_Aphi, "none"))
+  {
+    STORAGE: Aphi[1]
+  }
   if (!CCTK_EQUALS(initial_temperature, "none"))
   {
     STORAGE: temperature[1]
@@ -39,6 +47,14 @@ else if (timelevels == 2)
   {
     STORAGE: Bvec[2]
   }
+  if (!CCTK_EQUALS(initial_Avec, "none"))
+  {
+    STORAGE: Avec[2]
+  }
+  if (!CCTK_EQUALS(initial_Aphi, "none"))
+  {
+    STORAGE: Aphi[2]
+  }
   if (!CCTK_EQUALS(initial_temperature, "none"))
   {
     STORAGE: temperature[2]
@@ -63,6 +79,14 @@ else if (timelevels == 3)
   {
     STORAGE: Bvec[3]
   }
+  if (!CCTK_EQUALS(initial_Avec, "none"))
+  {
+    STORAGE: Avec[3]
+  }
+  if (!CCTK_EQUALS(initial_Aphi, "none"))
+  {
+    STORAGE: Aphi[3]
+  }
   if (!CCTK_EQUALS(initial_temperature, "none"))
   {
     STORAGE: temperature[3]
@@ -166,6 +190,22 @@ if (CCTK_Equals(initial_Bvec, "zero"))
   } "Set magnetic field to 0"
 }
 
+if (CCTK_Equals(initial_Avec, "zero"))
+{
+  SCHEDULE HydroBase_Avec_zero in HydroBase_Initial
+  {
+    LANG: C
+  } "Set vector potential to 0"
+}
+
+if (CCTK_Equals(initial_Aphi, "zero"))
+{
+  SCHEDULE HydroBase_Aphi_zero in HydroBase_Initial
+  {
+    LANG: C
+  } "Set vector potential Phi to 0"
+}
+
 if (hydro_excision)
 {
   schedule GROUP HydroBase_ExcisionMaskSetup in HydroBase_Initial
diff --git a/src/Initialisation.c b/src/Initialisation.c
index 4ed861f..9c6e366 100644
--- a/src/Initialisation.c
+++ b/src/Initialisation.c
@@ -213,6 +213,106 @@ void HydroBase_Bvec_zero (CCTK_ARGUMENTS)
   }
 }
 
+void HydroBase_Avec_zero (CCTK_ARGUMENTS)
+{
+  DECLARE_CCTK_ARGUMENTS;
+  DECLARE_CCTK_PARAMETERS;
+  
+  int const np = cctk_lsh[0] * cctk_lsh[1] * cctk_lsh[2];
+  
+#pragma omp parallel for
+  for (int i=0; i<np; ++i) {
+    Avec[i]      = 0.0;
+    Avec[i+  np] = 0.0;
+    Avec[i+2*np] = 0.0;
+  }
+  
+  if (CCTK_EQUALS (initial_data_setup_method, "init_some_levels") ||
+      CCTK_EQUALS (initial_data_setup_method, "init_single_level"))
+  {
+    /* do nothing */
+  }
+  else if (CCTK_EQUALS (initial_data_setup_method, "init_all_levels"))
+  {
+    
+    if (CCTK_ActiveTimeLevels(cctkGH, "HydroBase::Avec") >= 2) {
+#pragma omp parallel for
+      for (int i=0; i<np; ++i) {
+        Avec_p[i]      = 0.0;
+        Avec_p[i+  np] = 0.0;
+        Avec_p[i+2*np] = 0.0;
+      }
+    }
+    
+    if (CCTK_ActiveTimeLevels(cctkGH, "HydroBase::Avec") >= 3) {
+#pragma omp parallel for
+      for (int i=0; i<np; ++i) {
+        Avec_p_p[i]      = 0.0;
+        Avec_p_p[i+  np] = 0.0;
+        Avec_p_p[i+2*np] = 0.0;
+      }
+    }
+    
+    if (CCTK_ActiveTimeLevels(cctkGH, "HydroBase::Avec") >= 4) {
+      CCTK_WARN (CCTK_WARN_ABORT,
+                 "Too many active time levels for HydroBase::Avec");
+    }
+    
+  }
+  else
+  {
+    CCTK_WARN (CCTK_WARN_ABORT,
+               "Unsupported parameter value for InitBase::initial_data_setup_method");
+  }
+}
+
+void HydroBase_Aphi_zero (CCTK_ARGUMENTS)
+{
+  DECLARE_CCTK_ARGUMENTS;
+  DECLARE_CCTK_PARAMETERS;
+  
+  int const np = cctk_lsh[0] * cctk_lsh[1] * cctk_lsh[2];
+  
+#pragma omp parallel for
+  for (int i=0; i<np; ++i) {
+    Aphi[i]      = 0.0;
+  }
+  
+  if (CCTK_EQUALS (initial_data_setup_method, "init_some_levels") ||
+      CCTK_EQUALS (initial_data_setup_method, "init_single_level"))
+  {
+    /* do nothing */
+  }
+  else if (CCTK_EQUALS (initial_data_setup_method, "init_all_levels"))
+  {
+    
+    if (CCTK_ActiveTimeLevels(cctkGH, "HydroBase::Aphi") >= 2) {
+#pragma omp parallel for
+      for (int i=0; i<np; ++i) {
+        Aphi_p[i]      = 0.0;
+      }
+    }
+    
+    if (CCTK_ActiveTimeLevels(cctkGH, "HydroBase::Aphi") >= 3) {
+#pragma omp parallel for
+      for (int i=0; i<np; ++i) {
+        Aphi_p_p[i]      = 0.0;
+      }
+    }
+    
+    if (CCTK_ActiveTimeLevels(cctkGH, "HydroBase::Aphi") >= 4) {
+      CCTK_WARN (CCTK_WARN_ABORT,
+                 "Too many active time levels for HydroBase::Aphi");
+    }
+    
+  }
+  else
+  {
+    CCTK_WARN (CCTK_WARN_ABORT,
+               "Unsupported parameter value for InitBase::initial_data_setup_method");
+  }
+}
+
 void HydroBase_InitExcisionMask (CCTK_ARGUMENTS)
 {
   DECLARE_CCTK_ARGUMENTS;