1 files changed, 187 insertions, 0 deletions
diff --git a/Examples/SimpleWaveScript/src/calc_rhs.cc b/Examples/SimpleWaveScript/src/calc_rhs.cc
new file mode 100644
index 0000000..dac65b8
--- /dev/null
+++ b/Examples/SimpleWaveScript/src/calc_rhs.cc
@@ -0,0 +1,187 @@
+/*  File produced by Kranc */
+
+#define KRANC_C
+
+#include <assert.h>
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "cctk.h"
+#include "cctk_Arguments.h"
+#include "cctk_Parameters.h"
+#include "GenericFD.h"
+#include "Differencing.h"
+#include "cctk_Loop.h"
+#include "loopcontrol.h"
+
+/* Define macros used in calculations */
+#define INITVALUE (42)
+#define QAD(x) (SQR(SQR(x)))
+#define INV(x) ((1.0) / (x))
+#define SQR(x) ((x) * (x))
+#define CUB(x) ((x) * (x) * (x))
+
+extern "C" void calc_rhs_SelectBCs(CCTK_ARGUMENTS)
+{
+  DECLARE_CCTK_ARGUMENTS;
+  DECLARE_CCTK_PARAMETERS;
+  
+  CCTK_INT ierr = 0;
+  ierr = Boundary_SelectGroupForBC(cctkGH, CCTK_ALL_FACES, GenericFD_GetBoundaryWidth(cctkGH), -1 /* no table */, "SimpleWaveScript::phi_grouprhs","flat");
+  if (ierr < 0)
+    CCTK_WARN(1, "Failed to register flat BC for SimpleWaveScript::phi_grouprhs.");
+  ierr = Boundary_SelectGroupForBC(cctkGH, CCTK_ALL_FACES, GenericFD_GetBoundaryWidth(cctkGH), -1 /* no table */, "SimpleWaveScript::pi_grouprhs","flat");
+  if (ierr < 0)
+    CCTK_WARN(1, "Failed to register flat BC for SimpleWaveScript::pi_grouprhs.");
+  return;
+}
+
+static void calc_rhs_Body(cGH const * restrict const cctkGH, int const dir, int const face, CCTK_REAL const normal[3], CCTK_REAL const tangentA[3], CCTK_REAL const tangentB[3], int const imin[3], int const imax[3], int const n_subblock_gfs, CCTK_REAL * restrict const subblock_gfs[])
+{
+  DECLARE_CCTK_ARGUMENTS;
+  DECLARE_CCTK_PARAMETERS;
+  
+  
+  /* Declare finite differencing variables */
+  
+  /* Include user-supplied include files */
+  
+  /* Initialise finite differencing variables */
+  ptrdiff_t const di = 1;
+  ptrdiff_t const dj = CCTK_GFINDEX3D(cctkGH,0,1,0) - CCTK_GFINDEX3D(cctkGH,0,0,0);
+  ptrdiff_t const dk = CCTK_GFINDEX3D(cctkGH,0,0,1) - CCTK_GFINDEX3D(cctkGH,0,0,0);
+  ptrdiff_t const cdi = sizeof(CCTK_REAL) * di;
+  ptrdiff_t const cdj = sizeof(CCTK_REAL) * dj;
+  ptrdiff_t const cdk = sizeof(CCTK_REAL) * dk;
+  CCTK_REAL const dx = ToReal(CCTK_DELTA_SPACE(0));
+  CCTK_REAL const dy = ToReal(CCTK_DELTA_SPACE(1));
+  CCTK_REAL const dz = ToReal(CCTK_DELTA_SPACE(2));
+  CCTK_REAL const dt = ToReal(CCTK_DELTA_TIME);
+  CCTK_REAL const t = ToReal(cctk_time);
+  CCTK_REAL const dxi = INV(dx);
+  CCTK_REAL const dyi = INV(dy);
+  CCTK_REAL const dzi = INV(dz);
+  CCTK_REAL const khalf = 0.5;
+  CCTK_REAL const kthird = 1/3.0;
+  CCTK_REAL const ktwothird = 2.0/3.0;
+  CCTK_REAL const kfourthird = 4.0/3.0;
+  CCTK_REAL const keightthird = 8.0/3.0;
+  CCTK_REAL const hdxi = 0.5 * dxi;
+  CCTK_REAL const hdyi = 0.5 * dyi;
+  CCTK_REAL const hdzi = 0.5 * dzi;
+  
+  /* Initialize predefined quantities */
+  CCTK_REAL const p1o12dx = 0.0833333333333333333333333333333*INV(dx);
+  CCTK_REAL const p1o12dy = 0.0833333333333333333333333333333*INV(dy);
+  CCTK_REAL const p1o12dz = 0.0833333333333333333333333333333*INV(dz);
+  CCTK_REAL const p1o144dxdy = 0.00694444444444444444444444444444*INV(dx)*INV(dy);
+  CCTK_REAL const p1o144dxdz = 0.00694444444444444444444444444444*INV(dx)*INV(dz);
+  CCTK_REAL const p1o144dydz = 0.00694444444444444444444444444444*INV(dy)*INV(dz);
+  CCTK_REAL const p1o2dx = 0.5*INV(dx);
+  CCTK_REAL const p1o2dy = 0.5*INV(dy);
+  CCTK_REAL const p1o2dz = 0.5*INV(dz);
+  CCTK_REAL const p1o4dxdy = 0.25*INV(dx)*INV(dy);
+  CCTK_REAL const p1o4dxdz = 0.25*INV(dx)*INV(dz);
+  CCTK_REAL const p1o4dydz = 0.25*INV(dy)*INV(dz);
+  CCTK_REAL const p1odx2 = INV(SQR(dx));
+  CCTK_REAL const p1ody2 = INV(SQR(dy));
+  CCTK_REAL const p1odz2 = INV(SQR(dz));
+  CCTK_REAL const pm1o12dx2 = -0.0833333333333333333333333333333*INV(SQR(dx));
+  CCTK_REAL const pm1o12dy2 = -0.0833333333333333333333333333333*INV(SQR(dy));
+  CCTK_REAL const pm1o12dz2 = -0.0833333333333333333333333333333*INV(SQR(dz));
+  
+  /* Assign local copies of arrays functions */
+  
+  
+  
+  /* Calculate temporaries and arrays functions */
+  
+  /* Copy local copies back to grid functions */
+  
+  /* Loop over the grid points */
+  #pragma omp parallel
+  CCTK_LOOP3 (calc_rhs,
+    i,j,k, imin[0],imin[1],imin[2], imax[0],imax[1],imax[2],
+    cctk_lsh[0],cctk_lsh[1],cctk_lsh[2])
+  {
+    ptrdiff_t const index = di*i + dj*j + dk*k;
+    
+    /* Assign local copies of grid functions */
+    
+    CCTK_REAL phiL = phi[index];
+    CCTK_REAL piL = pi[index];
+    
+    
+    /* Include user supplied include files */
+    
+    /* Precompute derivatives */
+    CCTK_REAL PDstandard11phi;
+    CCTK_REAL PDstandard22phi;
+    CCTK_REAL PDstandard33phi;
+    
+    switch(fdOrder)
+    {
+      case 2:
+        PDstandard11phi = PDstandardfdOrder211(&phi[index]);
+        PDstandard22phi = PDstandardfdOrder222(&phi[index]);
+        PDstandard33phi = PDstandardfdOrder233(&phi[index]);
+        break;
+      
+      case 4:
+        PDstandard11phi = PDstandardfdOrder411(&phi[index]);
+        PDstandard22phi = PDstandardfdOrder422(&phi[index]);
+        PDstandard33phi = PDstandardfdOrder433(&phi[index]);
+        break;
+    }
+    
+    /* Calculate temporaries and grid functions */
+    CCTK_REAL phirhsL = piL;
+    
+    CCTK_REAL pirhsL = PDstandard11phi + PDstandard22phi + 
+      PDstandard33phi;
+    
+    /* Copy local copies back to grid functions */
+    phirhs[index] = phirhsL;
+    pirhs[index] = pirhsL;
+  }
+  CCTK_ENDLOOP3 (calc_rhs);
+}
+
+extern "C" void calc_rhs(CCTK_ARGUMENTS)
+{
+  DECLARE_CCTK_ARGUMENTS;
+  DECLARE_CCTK_PARAMETERS;
+  
+  
+  if (verbose > 1)
+  {
+    CCTK_VInfo(CCTK_THORNSTRING,"Entering calc_rhs_Body");
+  }
+  
+  if (cctk_iteration % calc_rhs_calc_every != calc_rhs_calc_offset)
+  {
+    return;
+  }
+  
+  const char *groups[] = {"SimpleWaveScript::phi_group","SimpleWaveScript::phi_grouprhs","SimpleWaveScript::pi_group","SimpleWaveScript::pi_grouprhs"};
+  GenericFD_AssertGroupStorage(cctkGH, "calc_rhs", 4, groups);
+  
+  switch(fdOrder)
+  {
+    case 2:
+      GenericFD_EnsureStencilFits(cctkGH, "calc_rhs", 1, 1, 1);
+      break;
+    
+    case 4:
+      GenericFD_EnsureStencilFits(cctkGH, "calc_rhs", 2, 2, 2);
+      break;
+  }
+  
+  GenericFD_LoopOverInterior(cctkGH, &calc_rhs_Body);
+  
+  if (verbose > 1)
+  {
+    CCTK_VInfo(CCTK_THORNSTRING,"Leaving calc_rhs_Body");
+  }
+}