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#include <cassert>
#include <vector>
#include "cctk.h"
#include "cctk_Parameters.h"
#include "gh.hh"
#include "carpet.hh"
#include "regrid.hh"
namespace CarpetRegrid {
using namespace std;
using namespace Carpet;
int ManualCoordinates (cGH const * const cctkGH,
gh const & hh,
gh::mregs & regsss)
{
DECLARE_CCTK_PARAMETERS;
if (refinement_levels > 4) {
CCTK_WARN (0, "Cannot currently specify manual refinement regions for more than 4 refinement levels");
}
assert (refinement_levels >= 1 and refinement_levels <= 4);
// do nothing if the levels already exist
if (reflevel == refinement_levels) return 0;
assert (regsss.size() >= 1);
vector<vector<region_t> > regss = regsss.at(0);
regss.resize (refinement_levels);
vector<rvect> lower(3), upper(3);
lower.at(0) = rvect (l1xmin, l1ymin, l1zmin);
upper.at(0) = rvect (l1xmax, l1ymax, l1zmax);
lower.at(1) = rvect (l2xmin, l2ymin, l2zmin);
upper.at(1) = rvect (l2xmax, l2ymax, l2zmax);
lower.at(2) = rvect (l3xmin, l3ymin, l3zmin);
upper.at(2) = rvect (l3xmax, l3ymax, l3zmax);
assert (! smart_outer_boundaries);
for (size_t rl=1; rl<regss.size(); ++rl) {
b2vect const ob (false);
region_t reg;
reg.map = Carpet::map;
reg.outer_boundaries = ob;
vector<region_t> regs;
ManualCoordinates_OneLevel
(cctkGH, hh, rl, refinement_levels,
lower.at(rl-1), upper.at(rl-1), reg, regs);
// make multiprocessor aware
SplitRegions (cctkGH, regs);
regss.at(rl) = regs;
} // for rl
// make multigrid aware
MakeMultigridBoxes (cctkGH, Carpet::map, regss, regsss);
return 1;
}
void ManualCoordinates_OneLevel (const cGH * const cctkGH,
const gh & hh,
const int rl,
const int numrl,
const rvect lower,
const rvect upper,
const region_t & reg,
vector<region_t> & regs)
{
if (rl >= numrl) return;
jvect const ilower = pos2int (cctkGH, hh, lower, rl);
jvect const iupper = pos2int (cctkGH, hh, upper, rl);
ManualGridpoints_OneLevel
(cctkGH, hh, rl, numrl, ilower, iupper, reg, regs);
}
ivect delta2int (const cGH * const cctkGH, const gh& hh,
const rvect & rpos, const int rl)
{
rvect global_lower, global_upper;
for (int d=0; d<dim; ++d) {
const int ierr = CCTK_CoordRange
(cctkGH, &global_lower[d], &global_upper[d], d+1, 0, "cart3d");
if (ierr<0) {
global_lower[d] = 0;
global_upper[d] = 1;
}
}
const ivect global_extent (hh.baseextents.at(0).at(0).upper() -
hh.baseextents.at(0).at(0).lower());
const rvect scale = rvect(global_extent) / (global_upper - global_lower);
const ivect levfac = hh.reffacts.at(rl);
assert (all (hh.baseextents.at(0).at(0).stride() % levfac == 0));
const ivect istride = hh.baseextents.at(0).at(0).stride() / levfac;
const ivect ipos
= ivect(floor(rpos * scale / rvect(istride) + (CCTK_REAL) 0.5)) * istride;
const rvect apos = rpos * scale;
assert (all(abs(apos - rvect(ipos)) < rvect(istride) * (CCTK_REAL) 0.01));
return ipos;
}
ivect pos2int (const cGH* const cctkGH, const gh& hh,
const rvect & rpos, const int rl)
{
rvect global_lower, global_upper;
#if 0
for (int d=0; d<dim; ++d) {
const int ierr = CCTK_CoordRange
(cctkGH, &global_lower[d], &global_upper[d], d+1, 0, "cart3d");
if (ierr<0) {
global_lower[d] = 0;
global_upper[d] = 1;
}
}
#endif
assert (Carpet::map >= 0);
global_lower = domainspecs.at(Carpet::map).exterior_min;
global_upper = domainspecs.at(Carpet::map).exterior_max;
const ivect global_extent (hh.baseextents.at(0).at(0).upper() -
hh.baseextents.at(0).at(0).lower());
const rvect scale = rvect(global_extent) / (global_upper - global_lower);
const ivect levfac = hh.reffacts.at(rl);
assert (all (hh.baseextents.at(0).at(0).stride() % levfac == 0));
const ivect istride = hh.baseextents.at(0).at(0).stride() / levfac;
const ivect ipos
= (ivect(floor((rpos - global_lower) * scale / rvect(istride)
+ (CCTK_REAL) 0.5))
* istride);
return ipos;
}
} // namespace CarpetRegrid
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