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#include "cctk.h"
#include "cctk_Parameters.h"
#include <assert.h>
void DiffGf ( const CCTK_POINTER cctkGH, const CCTK_INT dir,
const char *var_name, const char *dvar_name )
{
CCTK_REAL *var, *dvar;
CCTK_INT ni, nj, nk, gsize, ic;
CCTK_REAL delta;
CCTK_REAL phys_min[3], phys_max[3];
CCTK_REAL int_min[3], int_max[3];
CCTK_REAL ext_min[3], ext_max[3];
CCTK_REAL spacing[3];
CCTK_INT ierr;
CCTK_INT lsh[3], bbox[6], bb[2], nghostzones[3];
void CCTK_FCALL CCTK_FNAME(deriv_gf_2_1)(CCTK_REAL *var, const CCTK_INT *ni,
const CCTK_INT *nj, const CCTK_INT *nk,
const CCTK_INT *dir,
const CCTK_INT *bb,
const CCTK_INT *gsize,
const CCTK_REAL *delta,
CCTK_REAL *dvar);
void CCTK_FCALL CCTK_FNAME(deriv_gf_4_2)(CCTK_REAL *var, const CCTK_INT *ni,
const CCTK_INT *nj, const CCTK_INT *nk,
const CCTK_INT *dir,
const CCTK_INT *bb,
const CCTK_INT *gsize,
const CCTK_REAL *delta,
CCTK_REAL *dvar);
void CCTK_FCALL CCTK_FNAME(deriv_gf_6_3)(CCTK_REAL *var, const CCTK_INT *ni,
const CCTK_INT *nj, const CCTK_INT *nk,
const CCTK_INT *dir,
const CCTK_INT *bb,
const CCTK_INT *gsize,
const CCTK_REAL *delta,
CCTK_REAL *dvar);
DECLARE_CCTK_PARAMETERS
if (CCTK_GrouplshVN(cctkGH, 3, lsh, var_name) < 0)
{
CCTK_VWarn(1, __LINE__, __FILE__, CCTK_THORNSTRING,
"Error getting local size of grid for variable '%s'",var_name);
}
if (CCTK_GroupbboxVN(cctkGH, 6, bbox, var_name) < 0)
{
CCTK_VWarn(1, __LINE__, __FILE__, CCTK_THORNSTRING,
"Error getting bounding box for variable '%s'",var_name);
}
if (CCTK_GroupnghostzonesVN(cctkGH, 3, nghostzones, var_name) < 0)
{
CCTK_VWarn(1, __LINE__, __FILE__, CCTK_THORNSTRING,
"Error getting number of ghostzones for variable '%s'",var_name);
}
ni = lsh[0]; nj = lsh[1]; nk = lsh[2];
ierr = GetDomainSpecification ( 3, phys_min, phys_max, int_min, int_max,
ext_min, ext_max, spacing );
switch(dir) {
case 0: {
delta = spacing[0];
bb[0] = bbox[0]; bb[1] = bbox[1];
gsize = nghostzones[0];
break;
}
case 1: {
delta = spacing[1];
bb[0] = bbox[2]; bb[1] = bbox[3];
gsize = nghostzones[1];
break;
}
case 2: {
delta = spacing[2];
bb[0] = bbox[4]; bb[1] = bbox[5];
gsize = nghostzones[2];
break;
}
default:
assert(0);
}
var = (CCTK_REAL *)(CCTK_VarDataPtr(cctkGH,0,var_name));
dvar = (CCTK_REAL *)(CCTK_VarDataPtr(cctkGH,0,dvar_name));
switch(order) {
case 2: {
CCTK_FNAME(deriv_gf_2_1)(var,&ni,&nj,&nk,&dir,bb,&gsize,&delta,dvar);
break;
}
case 4: {
CCTK_FNAME(deriv_gf_4_2)(var,&ni,&nj,&nk,&dir,bb,&gsize,&delta,dvar);
break;
}
case 6: {
CCTK_FNAME(deriv_gf_6_3)(var,&ni,&nj,&nk,&dir,bb,&gsize,&delta,dvar);
break;
}
default:
assert(0);
}
}
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