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#include <assert.h>
#include <stdlib.h>
#include <stdio.h>
#include "cctk.h"
#include "cctk_Arguments.h"
#include "cctk_Parameters.h"
static void
enforce (int const varindex, char const * const optstring, void * const arg);
void
enforce_evolution_mask(CCTK_ARGUMENTS)
{
DECLARE_CCTK_ARGUMENTS;
DECLARE_CCTK_PARAMETERS;
CCTK_TraverseString (enforce_vars, enforce, cctkGH, CCTK_GROUP_OR_VAR);
}
void
enforce(int const varindex, char const * const optstring, void * const arg)
{
/* enforce the rhs of a given var to zero where the evolution mask
says so */
cGH const * const cctkGH = (cGH const *) arg;
DECLARE_CCTK_ARGUMENTS;
DECLARE_CCTK_PARAMETERS;
int rhsindex;
int vargroup, rhsgroup;
cGroup vardata, rhsdata;
CCTK_REAL const * varptr;
CCTK_REAL * rhsptr;
int index;
int i,j,k;
int ierr;
int nx = cctkGH->cctk_lsh[0];
int ny = cctkGH->cctk_lsh[1];
int nz = cctkGH->cctk_lsh[2];
assert (varindex >= 0);
/* make sure we do have a rhs for this var */
rhsindex = MoLQueryEvolvedRHS (varindex);
if (rhsindex < 0) {
char * const fullvarname = CCTK_FullName (varindex);
assert (fullvarname);
CCTK_VWarn (0, __LINE__, __FILE__, CCTK_THORNSTRING,
"There is no RHS variable registered with MoL for the evolved variable \"%s\"",
fullvarname);
free (fullvarname);
}
if (verbose) {
char * const fullvarname = CCTK_FullName (varindex);
char * const fullrhsname = CCTK_FullName (rhsindex);
assert (fullvarname);
assert (fullrhsname);
CCTK_VInfo (CCTK_THORNSTRING,
"Enforcing evolution mask on \"%s\" (RHS \"%s\")",
fullvarname, fullrhsname);
free (fullvarname);
free (fullrhsname);
}
assert (rhsindex >= 0);
vargroup = CCTK_GroupIndexFromVarI (varindex);
assert (vargroup >= 0);
rhsgroup = CCTK_GroupIndexFromVarI (rhsindex);
assert (rhsgroup >= 0);
ierr = CCTK_GroupData (vargroup, &vardata);
assert (!ierr);
ierr = CCTK_GroupData (rhsgroup, &rhsdata);
assert (!ierr);
assert (vardata.grouptype == CCTK_GF);
assert (vardata.vartype == CCTK_VARIABLE_REAL);
assert (vardata.dim == cctk_dim);
assert (rhsdata.grouptype == CCTK_GF);
assert (rhsdata.vartype == CCTK_VARIABLE_REAL);
assert (rhsdata.dim == cctk_dim);
rhsptr = CCTK_VarDataPtrI (cctkGH, 0, rhsindex);
assert (rhsptr);
if(!writeNaNs) {
for (k = 0; k<nz; k++)
for (j = 0; j<ny; j++)
for (i = 0; i<nx; i++) {
index = CCTK_GFINDEX3D (cctkGH, i, j, k);
rhsptr[index] = evolution_mask[index]*rhsptr[index];
}
} else {
for (k = 0; k<nz; k++)
for (j = 0; j<ny; j++)
for (i = 0; i<nx; i++) {
index = CCTK_GFINDEX3D (cctkGH, i, j, k);
if(evolution_mask[index] < 1e-10) {
rhsptr[index] = 1.0e+12;
}
}
}
}
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