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#include <assert.h>
#include <sstream>
#include <string>
#include "cctk.h"
#include "cctk_Parameters.h"
#include "gh.hh"
#include "vect.hh"
#include "carpet.hh"
#include "regrid.hh"
extern "C" {
static const char* rcsid = "$Header: /home/eschnett/C/carpet/Carpet/Carpet/CarpetRegrid/src/regrid.cc,v 1.36 2004/02/05 16:11:20 schnetter Exp $";
CCTK_FILEVERSION(Carpet_CarpetRegrid_regrid_cc);
}
namespace CarpetRegrid {
using namespace std;
using namespace Carpet;
CCTK_INT CarpetRegrid_Regrid (CCTK_POINTER_TO_CONST const cctkGH_,
CCTK_INT const reflevel,
CCTK_INT const map,
CCTK_INT const size,
CCTK_INT const * const nboundaryzones_,
CCTK_INT const * const is_internal_,
CCTK_INT const * const is_staggered_,
CCTK_INT const * const shiftout_,
CCTK_POINTER const bbsss_,
CCTK_POINTER const obss_,
CCTK_POINTER const pss_)
{
DECLARE_CCTK_PARAMETERS;
const cGH * const cctkGH = (const cGH *) cctkGH_;
assert (reflevel>=0 && reflevel<maxreflevels);
assert (map>=0 && map<maps);
assert (size == 2*dim);
jjvect const nboundaryzones (* (jjvect const *) nboundaryzones_);
jjvect const is_internal (* (jjvect const *) is_internal_);
jjvect const is_staggered (* (jjvect const *) is_staggered_);
jjvect const shiftout (* (jjvect const *) shiftout_);
gh<dim>::rexts & bbsss = * (gh<dim>::rexts *) bbsss_;
gh<dim>::rbnds & obss = * (gh<dim>::rbnds *) obss_;
gh<dim>::rprocs & pss = * (gh<dim>::rprocs *) pss_;
gh<dim> const & hh = *vhh.at(map);
assert (is_meta_mode());
assert (regrid_every == -1 || regrid_every == 0
|| regrid_every % maxmglevelfact == 0);
// Return if no regridding is desired
if (regrid_every == -1) return 0;
// Return if we want to regrid during initial data only, and this
// is not the time for initial data
if (regrid_every == 0 && cctkGH->cctk_iteration != 0) return 0;
// Return if we want to regrid regularly, but not at this time
if (regrid_every > 0 && cctkGH->cctk_iteration != 0
&& cctkGH->cctk_iteration % regrid_every != 0) {
return 0;
}
// Steer parameters
if (CCTK_EQUALS(activate_levels_on_regrid, "none")) {
// do nothing
} else if (CCTK_EQUALS(activate_levels_on_regrid, "fixed")) {
if (cctkGH->cctk_iteration >= activate_next) {
const int newnumlevels
= min(refinement_levels + num_new_levels, maxreflevels);
assert (newnumlevels>0 && newnumlevels<=maxreflevels);
*const_cast<CCTK_INT*>(&activate_next) = cctkGH->cctk_iteration + 1;
ostringstream next;
next << activate_next;
CCTK_ParameterSet
("activate_next", "CarpetRegrid", next.str().c_str());
*const_cast<CCTK_INT*>(&refinement_levels) = newnumlevels;
ostringstream param;
param << refinement_levels;
CCTK_ParameterSet
("refinement_levels", "CarpetRegrid", param.str().c_str());
}
} else if (CCTK_EQUALS(activate_levels_on_regrid, "function")) {
if (! CCTK_IsFunctionAliased("RegridLevel")) {
CCTK_WARN (0, "No thorn has provided the function \"RegridLevel\"");
}
const int newnumlevels
= RegridLevel (cctkGH, reflevel, refinement_levels, maxreflevels);
assert (newnumlevels>0 && newnumlevels<=maxreflevels);
*const_cast<CCTK_INT*>(&refinement_levels) = newnumlevels;
ostringstream param;
param << refinement_levels;
CCTK_ParameterSet
("refinement_levels", "CarpetRegrid", param.str().c_str());
} else {
assert (0);
}
int do_recompose;
if (CCTK_EQUALS(refined_regions, "none")) {
do_recompose = BaseLevel
(cctkGH, hh, reflevel, map,
size, nboundaryzones, is_internal, is_staggered, shiftout,
bbsss, obss, pss);
} else if (CCTK_EQUALS(refined_regions, "centre")) {
do_recompose = Centre
(cctkGH, hh, reflevel, map,
size, nboundaryzones, is_internal, is_staggered, shiftout,
bbsss, obss, pss);
} else if (CCTK_EQUALS(refined_regions, "manual-gridpoints")) {
do_recompose = ManualGridpoints
(cctkGH, hh, reflevel, map,
size, nboundaryzones, is_internal, is_staggered, shiftout,
bbsss, obss, pss);
} else if (CCTK_EQUALS(refined_regions, "manual-coordinates")) {
do_recompose = ManualCoordinates
(cctkGH, hh, reflevel, map,
size, nboundaryzones, is_internal, is_staggered, shiftout,
bbsss, obss, pss);
} else if (CCTK_EQUALS(refined_regions, "manual-gridpoint-list")) {
do_recompose = ManualGridpointList
(cctkGH, hh, reflevel, map,
size, nboundaryzones, is_internal, is_staggered, shiftout,
bbsss, obss, pss);
} else if (CCTK_EQUALS(refined_regions, "manual-coordinate-list")) {
do_recompose = ManualCoordinateList
(cctkGH, hh, reflevel, map,
size, nboundaryzones, is_internal, is_staggered, shiftout,
bbsss, obss, pss);
} else if (CCTK_EQUALS(refined_regions, "automatic")) {
do_recompose = Automatic
(cctkGH, hh, reflevel, map,
size, nboundaryzones, is_internal, is_staggered, shiftout,
bbsss, obss, pss);
} else {
assert (0);
}
return do_recompose;
}
} // namespace CarpetRegrid
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