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/* $Header$ */
#include <assert.h>
#include <stdlib.h>
#include "cctk.h"
#include "cctk_Parameters.h"
#include "Slab.h"
#include "Periodic.h"
static const char * restrict const rcsid = "$Header$";
CCTK_FILEVERSION(TAT_Periodic_periodic_c);
int
BndPeriodicVI (cGH const * restrict const cctkGH,
int const * restrict const stencil,
int const vi)
{
cGroup group;
cGroupDynamicData data;
void * restrict varptr;
struct xferinfo * restrict xferinfo;
int do_periodic[3];
int gi;
int dir;
int d, f;
int ierr;
/* Check arguments */
assert (cctkGH);
assert (stencil);
assert (vi>=0 && vi<CCTK_NumVars());
/* Get and check group info */
gi = CCTK_GroupIndexFromVarI (vi);
assert (gi>=0 && gi<CCTK_NumGroups());
ierr = CCTK_GroupData (gi, &group);
assert (!ierr);
assert (group.grouptype == CCTK_GF);
assert (group.disttype == CCTK_DISTRIB_DEFAULT);
assert (group.stagtype == 0);
ierr = CCTK_GroupDynamicData (cctkGH, gi, &data);
assert (!ierr);
varptr = CCTK_VarDataPtrI (cctkGH, 0, vi);
assert (varptr);
/* Condition periodicity information */
do_periodic[0] = periodic || periodic_x;
do_periodic[1] = periodic || periodic_y;
do_periodic[2] = periodic || periodic_z;
/* Allocate slab transfer description */
xferinfo = malloc(group.dim * sizeof *xferinfo);
assert (xferinfo);
for (dir=0; dir<group.dim; ++dir) {
if (dir<3 && do_periodic[dir]) {
/* Loop over faces */
for (f=0; f<2; ++f) {
/* Fill in slab transfer description */
for (d=0; d<group.dim; ++d) {
xferinfo[d].src.gsh = data.gsh [d];
xferinfo[d].src.lbnd = data.lbnd [d];
xferinfo[d].src.lsh = data.lsh [d];
xferinfo[d].src.lbbox = data.bbox [2*d ];
xferinfo[d].src.ubbox = data.bbox [2*d+1];
xferinfo[d].src.nghostzones = data.nghostzones[d];
xferinfo[d].src.off = 0;
xferinfo[d].src.str = 1;
xferinfo[d].src.len = data.lsh [d];
xferinfo[d].dst.gsh = data.gsh [d];
xferinfo[d].dst.lbnd = data.lbnd [d];
xferinfo[d].dst.lsh = data.lsh [d];
xferinfo[d].dst.lbbox = data.bbox [2*d ];
xferinfo[d].dst.ubbox = data.bbox [2*d+1];
xferinfo[d].dst.nghostzones = data.nghostzones[d];
xferinfo[d].dst.off = 0;
xferinfo[d].dst.str = 1;
xferinfo[d].dst.len = data.lsh [d];
xferinfo[d].xpose = d;
xferinfo[d].flip = 0;
}
if (f==0) {
/* Fill in lower face */
xferinfo[dir].src.off = data.lsh[d] - data.nghostzones[d];
xferinfo[dir].src.len = data.nghostzones[d];
xferinfo[dir].dst.len = data.nghostzones[d];
} else {
/* Fill in upper face */
xferinfo[dir].src.len = data.nghostzones[d];
xferinfo[dir].dst.off = data.lsh[d] - data.nghostzones[d];
xferinfo[dir].dst.len = data.nghostzones[d];
}
ierr = Slab_Transfer (cctkGH, group.dim, xferinfo, -1,
group.vartype, varptr, group.vartype, varptr);
assert (ierr);
} /* for f */
} /* if dir */
} /* for dir */
free (xferinfo);
return 0;
}
int
BndPeriodicVN (cGH const * restrict const cctkGH,
int const * restrict const stencil,
char const * restrict const vn)
{
int const vi = CCTK_VarIndex (vn);
assert (vi>=0 && vi<CCTK_NumVars());
return BndPeriodicVI (cctkGH, stencil, vi);
}
int
BndPeriodicGI (cGH const * restrict const cctkGH,
int const * restrict const stencil,
int const gi)
{
int vi1, vi2;
int vi;
int ierr;
assert (gi>=0 && gi<CCTK_NumGroups());
vi1 = CCTK_FirstVarIndexI(gi);
assert (vi1>=0 && vi1<CCTK_NumVars());
vi2 = vi1 + CCTK_NumVarsInGroupI(gi);
assert (vi2>=vi1 && vi2<CCTK_NumVars());
assert (vi>=0 && vi<CCTK_NumVars());
for (vi=vi1; vi<vi2; ++vi) {
ierr = BndPeriodicVI (cctkGH, stencil, vi);
if (ierr) return ierr;
}
return 0;
}
int
BndPeriodicGN (cGH const * restrict const cctkGH,
int const * restrict const stencil,
char const * restrict const gn)
{
int const gi = CCTK_GroupIndex (gn);
assert (gi>=0 && gi<CCTK_NumGroups());
return BndPeriodicGI (cctkGH, stencil, gi);
}
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