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#include <cassert>
#include <sstream>
#include <cctk.h>
#include <cctk_Arguments.h>
#include <cctk_Parameters.h>
#include <dh.hh>
#include <carpet.hh>
#include <loopcontrol.h>
#include "bits.h"
#include "mask_carpet.hh"
#define SWITCH_TO_LEVEL(cctkGH, rl) \
do { \
bool switch_to_level_ = true; \
assert (is_singlemap_mode()); \
int const rl_ = (rl); \
int const m_ = Carpet::map; \
BEGIN_GLOBAL_MODE (cctkGH) { \
ENTER_LEVEL_MODE (cctkGH, rl_) { \
ENTER_SINGLEMAP_MODE (cctkGH, m_, CCTK_GF) {
#define END_SWITCH_TO_LEVEL \
} LEAVE_SINGLEMAP_MODE; \
} LEAVE_LEVEL_MODE; \
} END_GLOBAL_MODE; \
assert (switch_to_level_); \
switch_to_level_ = false; \
} while (false)
namespace CarpetMask {
using namespace std;
using namespace Carpet;
/**
* Reduce the weight on the current and the next coarser level to
* make things consistent. Set the weight to 0 inside the
* restriction region of the next coarser level, maybe to 1/2 near
* the boundary of that region, and also to 1/2 near the
* prolongation boundary of this level.
*/
void
CarpetMaskSetup (CCTK_ARGUMENTS)
{
DECLARE_CCTK_PARAMETERS;
if (not is_singlemap_mode()) {
CCTK_WARN (0, "This routine may only be called in singlemap mode");
}
if (reflevel > 0) {
ivect const ione = ivect(1);
dh const & dd = *vdd.AT(Carpet::map);
ivect const reffact =
spacereffacts.AT(reflevel) / spacereffacts.AT(reflevel-1);
assert (all (reffact == 2));
// Set prolongation boundaries of this level
BEGIN_LOCAL_COMPONENT_LOOP (cctkGH, CCTK_GF) {
DECLARE_CCTK_ARGUMENTS;
ibbox const & ext =
dd.light_boxes.AT(mglevel).AT(reflevel).AT(component).exterior;
ibset const & active =
dd.local_boxes.AT(mglevel).AT(reflevel).AT(local_component).active;
vect<vect<ibset,2>,dim> const & boundaries =
dd.local_boxes.AT(mglevel).AT(reflevel).AT(local_component).prolongation_boundaries;
ibset const notactive = ext - active;
for (int d=0; d<dim; ++d) {
for (int f=0; f<2; ++f) {
assert ((notactive & boundaries[d][f]).empty());
}
}
LOOP_OVER_BSET (cctkGH, notactive, box, imin, imax) {
if (verbose) {
ostringstream buf;
buf << "Setting buffer region on level " << reflevel << " to weight 0: " << imin << ":" << imax-ione;
CCTK_INFO (buf.str().c_str());
}
// Set weight on the boundary to 0
assert (dim == 3);
#pragma omp parallel
LC_LOOP3(CarpetMaskSetup_buffers,
i,j,k,
imin[0],imin[1],imin[2], imax[0],imax[1],imax[2],
cctk_lsh[0],cctk_lsh[1],cctk_lsh[2])
{
int const ind = CCTK_GFINDEX3D (cctkGH, i, j, k);
iweight[ind] = 0;
} LC_ENDLOOP3(CarpetMaskSetup_buffers);
} END_LOOP_OVER_BSET;
for (int d=0; d<dim; ++d) {
for (int f=0; f<2; ++f) {
LOOP_OVER_BSET (cctkGH, boundaries[d][f], box, imin, imax) {
if (verbose) {
ostringstream buf;
buf << "Setting prolongation boundary on level " << reflevel << " direction " << d << " face " << f << " to weight 1/2: " << imin << ":" << imax-ione;
CCTK_INFO (buf.str().c_str());
}
// Set weight on the boundary to 1/2
int bmask = 0;
for (unsigned b=0; b<BMSK(dim); ++b) {
if (BGET(b,d)==f) {
bmask = BSET(bmask, b);
}
}
assert (dim == 3);
#pragma omp parallel
LC_LOOP3(CarpetMaskSetup_prolongation,
i,j,k,
imin[0],imin[1],imin[2], imax[0],imax[1],imax[2],
cctk_lsh[0],cctk_lsh[1],cctk_lsh[2])
{
int const ind = CCTK_GFINDEX3D (cctkGH, i, j, k);
iweight[ind] &= ~bmask;
} LC_ENDLOOP3(CarpetMaskSetup_prolongation);
} END_LOOP_OVER_BSET;
} // for f
} // for d
} END_LOCAL_COMPONENT_LOOP;
// Set restriction region on next coarser level
SWITCH_TO_LEVEL (cctkGH, reflevel-1) {
BEGIN_LOCAL_COMPONENT_LOOP (cctkGH, CCTK_GF) {
DECLARE_CCTK_ARGUMENTS;
ibset const & refined =
dd.local_boxes.AT(mglevel).AT(reflevel).AT(local_component).restricted_region;
vect<vect<ibset,2>,dim> const & boundaries =
dd.local_boxes.AT(mglevel).AT(reflevel).AT(local_component).restriction_boundaries;
LOOP_OVER_BSET (cctkGH, refined, box, imin, imax) {
if (verbose) {
ostringstream buf;
buf << "Setting restricted region on level " << reflevel << " to weight 0: " << imin << ":" << imax-ione;
CCTK_INFO (buf.str().c_str());
}
// Set weight in the restricted region to 0
assert (dim == 3);
#pragma omp parallel
LC_LOOP3(CarpetMaskSetup_restriction,
i,j,k,
imin[0],imin[1],imin[2], imax[0],imax[1],imax[2],
cctk_lsh[0],cctk_lsh[1],cctk_lsh[2])
{
int const ind = CCTK_GFINDEX3D (cctkGH, i, j, k);
iweight[ind] = 0;
} LC_ENDLOOP3(CarpetMaskSetup_restriction);
} END_LOOP_OVER_BSET;
vector<int> imask (prod(ivect::ref(cctk_lsh)));
vector<int> mask (prod(ivect::ref(cctk_lsh)));
assert (dim == 3);
#pragma omp parallel
LC_LOOP3(CarpetMaskSetup_restriction_boundary_init,
i,j,k,
0,0,0, cctk_lsh[0],cctk_lsh[1],cctk_lsh[2],
cctk_lsh[0],cctk_lsh[1],cctk_lsh[2])
{
int const ind = CCTK_GFINDEX3D (cctkGH, i, j, k);
imask[ind] = 0;
mask[ind] = 0;
} LC_ENDLOOP3(CarpetMaskSetup_restriction_boundary_init);
for (int d=0; d<dim; ++d) {
for (int f=0; f<2; ++f) {
LOOP_OVER_BSET (cctkGH, boundaries[d][f], box, imin, imax) {
if (verbose) {
ostringstream buf;
buf << "Setting restriction boundary on level " << reflevel << " direction " << d << " face " << f << " to weight 1/2: " << imin << ":" << imax-ione;
CCTK_INFO (buf.str().c_str());
}
// Set weight on the boundary to 1/2
int bmask = 0;
for (unsigned b=0; b<BMSK(dim); ++b) {
if (BGET(b,d)==f) {
bmask = BSET(bmask, b);
}
}
assert (dim == 3);
#pragma omp parallel
LC_LOOP3(CarpetMaskSetup_restriction_boundary_partial,
i,j,k,
imin[0],imin[1],imin[2], imax[0],imax[1],imax[2],
cctk_lsh[0],cctk_lsh[1],cctk_lsh[2])
{
int const ind = CCTK_GFINDEX3D (cctkGH, i, j, k);
imask[ind] |= bmask;
if (mask[ind] == 0) {
mask[ind] = 1;
}
mask[ind] *= 2;
} LC_ENDLOOP3(CarpetMaskSetup_restriction_boundary_partial);
} END_LOOP_OVER_BSET;
} // for f
} // for d
assert (dim == 3);
#pragma omp parallel
LC_LOOP3(CarpetMaskSetup_restriction_boundary_apply,
i,j,k,
0,0,0, cctk_lsh[0],cctk_lsh[1],cctk_lsh[2],
cctk_lsh[0],cctk_lsh[1],cctk_lsh[2])
{
int const ind = CCTK_GFINDEX3D (cctkGH, i, j, k);
if (mask[ind] > 0) {
iweight[ind] &= imask[ind];
}
} LC_ENDLOOP3(CarpetMaskSetup_restriction_boundary_apply);
} END_LOCAL_COMPONENT_LOOP;
} END_SWITCH_TO_LEVEL;
} // if reflevel>0
}
} // namespace CarpetMask
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