C version of IDScalarWave

git-svn-id: http://svn.cactuscode.org/arrangements/CactusWave/IDScalarWaveC/trunk@2 071ba4cb-2270-47cd-a45a-3e542e115664

3 files changed, 199 insertions, 0 deletions

diff --git a/src/CheckParameters.c b/src/CheckParameters.c
new file mode 100644
index 0000000..de6a523
--- /dev/null
+++ b/src/CheckParameters.c
@@ -0,0 +1,56 @@
+/*
+   @file      CheckParameters.c
+   @date      
+   @author    Gabrielle Allen
+   @desc 
+              Check parameters for the wave equation initial data
+   @enddesc 
+ @@*/
+
+#include "cctk.h" 
+#include "cctk_Parameters.h"
+#include "cctk_Arguments.h"
+#include "cctk_Groups.h"
+#include "cctk_Misc.h"
+#include "cctk_WarnLevel.h"
+
+static char *rcsid = "$Header$";
+
+ /*@@
+   @routine    IDScalarWave_CheckParameters
+   @date       
+   @author     Gabrielle Allen
+   @desc 
+               Check parameters for the wave equation initial data
+   @enddesc 
+   @calls      
+   @calledby   
+   @history 
+   @hdate Mon Oct 11 11:49:21 1999 @hauthor Tom Goodale
+   @hdesc Converted to C++ 
+   @hdate Thu Feb 17 09:20:41 2000 @hauthor Tom Goodale
+   @hdesc Converted to C
+   @endhistory 
+
+@@*/
+
+void IDScalarWaveC_CheckParameters(CCTK_CARGUMENTS)
+{
+  DECLARE_CCTK_CARGUMENTS
+  DECLARE_CCTK_PARAMETERS
+
+  if(CCTK_Equals(initial_data,"box"))
+  {
+    if (!CCTK_Equals(type, "box"))
+    {
+      CCTK_PARAMWARN("Must have a box grid with box initial data");
+    }
+
+    if (kx == 0 || ky == 0 || kz == 0)
+    {
+      CCTK_PARAMWARN("Cannot have zero kx,ky,kz for box initial data");
+    }
+  }
+  return;
+}
+
diff --git a/src/InitialData.c b/src/InitialData.c
new file mode 100644
index 0000000..d6b22c4
--- /dev/null
+++ b/src/InitialData.c
@@ -0,0 +1,134 @@
+ /*@@
+   @file      InitialData.c
+   @date      
+   @author    Werner Benger   
+   @desc 
+              Initial data for the 3D Wave Equation
+	      Derived from Tom Goodale
+   @enddesc 
+   @version $Header$
+ @@*/
+
+#include <math.h>
+
+#include "cctk.h" 
+#include "cctk_Flesh.h"
+#include "cctk_Parameters.h"
+#include "cctk_Groups.h"
+#include "cctk_Arguments.h"
+#include "cctk_Misc.h"
+
+static char *rcsid = "$Header$";
+
+static CCTK_REAL sqr(CCTK_REAL val)
+{
+  return val*val;
+}
+
+
+
+ /*@@
+   @routine    IDScalarWave_InitialData
+   @date       
+   @author     Tom Goodale
+   @desc 
+               Set up initial data for the wave equation
+   @enddesc 
+   @calls      
+   @calledby   
+   @history 
+   @hdate Mon Oct 11 11:48:03 1999 @hauthor Werner Benger
+   @hdesc  Converted to C++
+   @hdate Mon Oct 11 11:48:20 1999 @hauthor Tom Goodale
+   @hdesc Added the rest of the initial data.
+   @hdate Thu Feb 17 09:22:01 2000 @hauthor Tom Goodale
+   @hdesc Converted to C
+   @endhistory 
+
+@@*/
+
+void IDScalarWaveC_InitialData(CCTK_CARGUMENTS)
+{
+  DECLARE_CCTK_CARGUMENTS
+  DECLARE_CCTK_PARAMETERS
+  
+  int i,j,k;
+
+  CCTK_REAL dt;
+  CCTK_REAL omega;
+  int index;
+  CCTK_REAL X, Y, Z, R;
+  CCTK_REAL pi;
+
+  dt = CCTK_DELTA_TIME;
+
+  if(CCTK_Equals(initial_data, "plane"))
+  {
+    omega = sqrt(sqr(kx)+sqr(ky)+sqr(kz));
+
+    for(k=0; k<cctk_lsh[2]; k++)
+    {
+      for(j=0; j<cctk_lsh[1]; j++)
+      {
+        for(i=0; i<cctk_lsh[0]; i++)
+        {
+          index =  CCTK_GFINDEX3D(cctkGH,i,j,k);
+
+          phi[index]     = amplitude*cos(kx*x[index]+ky*y[index]+kz*z[index]+omega*cctk_time);
+          phi_old[index] = amplitude*cos(kx*x[index]+ky*y[index]+kz*z[index]+omega*(cctk_time-dt));
+        }
+      }
+    }
+  }
+  else if(CCTK_Equals(initial_data, "gaussian"))
+  {
+    for(k=0; k<cctk_lsh[2]; k++)
+    {
+      for(j=0; j<cctk_lsh[1]; j++)
+      {
+        for(i=0; i<cctk_lsh[0]; i++)
+        {
+          index =  CCTK_GFINDEX3D(cctkGH,i,j,k);
+
+          X = x[index];
+          Y = y[index];
+          Z = z[index];
+
+          R = sqrt(X*X + Y*Y + Z*Z);
+
+          phi[index] = amplitude*exp( - sqr( (R - radius) / sigma ) );
+          phi_old[index] = amplitude*exp( - sqr( (R - radius - dt) / sigma ) );
+
+        } 
+      }
+    }
+  }
+  else if(CCTK_Equals(initial_data, "box"))
+  {
+    pi = 4.0*atan(1.0);
+    omega = sqrt(sqr(kx)+sqr(ky)+sqr(kz));
+
+    for(k=0; k<cctk_lsh[2]; k++)
+    {
+      for(j=0; j<cctk_lsh[1]; j++)
+      {
+        for(i=0; i<cctk_lsh[0]; i++)
+        {
+          index =  CCTK_GFINDEX3D(cctkGH,i,j,k);
+
+          phi[index] = amplitude*sin(kx*(x[index]-0.5)*pi)*
+                                 sin(ky*(y[index]-0.5)*pi)*
+                                 sin(kz*(z[index]-0.5)*pi)*
+                                 cos(omega*cctk_time*pi);
+
+          phi_old[index] = amplitude*sin(kx*(x[index]-0.5)*pi)*
+                                         sin(ky*(y[index]-0.5)*pi)*
+                                         sin(kz*(z[index]-0.5)*pi)*
+                                         cos(omega*(cctk_time-dt)*pi);
+        }
+      }
+    }
+  }
+  return;
+}
+
diff --git a/src/make.code.defn b/src/make.code.defn
new file mode 100644
index 0000000..f96f4ed
--- /dev/null
+++ b/src/make.code.defn
@@ -0,0 +1,9 @@
+# Main make.code.defn file for thorn IDScalarWave
+# $Header$
+
+# Source files in this directory
+SRCS = InitialData.c CheckParameters.c
+
+# Subdirectories containing source files
+SUBDIRS = 
+