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#include <cassert>
#include <cmath>
#include <cstring>
#include <sstream>
#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 ManualCoordinateList (cGH const * const cctkGH,
gh const & hh,
gh::mexts & bbsss,
gh::rbnds & obss,
gh::rprocs & pss)
{
DECLARE_CCTK_PARAMETERS;
int ierr;
assert (refinement_levels >= 1);
// do nothing if the levels already exist
if (reflevel == refinement_levels && !tracking) return 0;
assert (bbsss.size() >= 1);
vector<vector<ibbox> > bbss = bbsss.at(0);
jjvect nboundaryzones, is_internal, is_staggered, shiftout;
ierr = GetBoundarySpecification
(2*dim, &nboundaryzones[0][0], &is_internal[0][0],
&is_staggered[0][0], &shiftout[0][0]);
assert (!ierr);
rvect physical_min, physical_max;
rvect interior_min, interior_max;
rvect exterior_min, exterior_max;
rvect base_spacing;
ierr = GetDomainSpecification
(dim, &physical_min[0], &physical_max[0],
&interior_min[0], &interior_max[0],
&exterior_min[0], &exterior_max[0], &base_spacing[0]);
assert (!ierr);
bbss.resize (refinement_levels);
obss.resize (refinement_levels);
pss.resize (refinement_levels);
vector<vector<rbbox> > newbbss;
if (strcmp(coordinates, "") != 0) {
istringstream gp_str(coordinates);
try {
gp_str >> newbbss;
} catch (input_error) {
CCTK_WARN (0, "Could not parse parameter \"coordinates\"");
}
if (newbbss.size() >= spacereffacts.size()) {
CCTK_WARN (0, "Parameter \"coordinates\" defines too many refinement levels; at most Carpet::max_refinement_levels - 1 may be defined");
}
}
if ((int)newbbss.size() < refinement_levels-1) {
CCTK_VWarn (0, __LINE__, __FILE__, CCTK_THORNSTRING,
"The parameter \"coordinates\" must contain at least \"refinement_levels-1\" (here: %d) levels", int(refinement_levels-1));
}
// Remove superfluous boxes
newbbss.resize (refinement_levels-1);
vector<vector<bbvect> > newobss;
if (smart_outer_boundaries) {
// TODO:
// assert (domain_from_coordbase);
newobss.resize(newbbss.size());
for (int rl=0; rl<(int)newobss.size(); ++rl) {
ivect const spacereffact = spacereffacts.at(rl+1);
assert (mglevel==0);
rvect const spacing =
base_spacing * ipow((CCTK_REAL)mgfact, basemglevel)
/ rvect(spacereffact);
ierr = ConvertFromPhysicalBoundary
(dim, &physical_min[0], &physical_max[0],
&interior_min[0], &interior_max[0],
&exterior_min[0], &exterior_max[0], &spacing[0]);
assert (!ierr);
newobss.at(rl).resize(newbbss.at(rl).size());
for (int c=0; c<(int)newobss.at(rl).size(); ++c) {
rvect lo = newbbss.at(rl).at(c).lower();
rvect up = newbbss.at(rl).at(c).upper();
rvect str = newbbss.at(rl).at(c).stride();
bbvect ob = newobss.at(rl).at(c);
for (int d=0; d<dim; ++d) {
ob[d][0] = (abs(newbbss.at(rl).at(c).lower()[d] - physical_min[d])
< 1.0e-6 * spacing[d]);
if (ob[d][0]) {
lo[d] = exterior_min[d];
}
ob[d][1] = (abs(newbbss.at(rl).at(c).upper()[d] - physical_max[d])
< 1.0e-6 * base_spacing[d] / spacereffact[d]);
if (ob[d][1]) {
up[d] = exterior_max[d];
}
str[d] *= ipow((CCTK_REAL)mgfact, basemglevel);
}
newbbss.at(rl).at(c) = rbbox(lo, up, str);
newobss.at(rl).at(c) = ob;
} // for c
} // for rl
} else { // if ! smart_outer_boundaries
if (strcmp(outerbounds, "") != 0) {
istringstream ob_str (outerbounds);
try {
ob_str >> newobss;
} catch (input_error) {
CCTK_WARN (0, "Could not parse parameter \"outerbounds\"");
}
if (newobss.size() >= spacereffacts.size()) {
CCTK_WARN (0, "Parameter \"outerbounds\" defines too many refinement levels; at most Carpet::max_refinement_levels - 1 may be defined");
}
bool good = newobss.size() == newbbss.size();
if (good) {
for (int rl=0; rl<(int)newobss.size(); ++rl) {
good = good and newobss.at(rl).size() == newbbss.at(rl).size();
}
}
if (! good) {
cout << "coordinates: " << newbbss << endl;
cout << "outerbounds: " << newobss << endl;
CCTK_WARN (0, "The parameters \"outerbounds\" and \"coordinates\" must have the same structure");
}
} else {
newobss.resize(newbbss.size());
for (int rl=0; rl<(int)newobss.size(); ++rl) {
newobss.at(rl).resize(newbbss.at(rl).size());
for (int c=0; c<(int)newobss.at(rl).size(); ++c) {
newobss.at(rl).at(c) = bbvect(false);
}
}
}
} // if ! smart_outer_boundaries
for (int rl=1; rl<refinement_levels; ++rl) {
vector<ibbox> bbs;
gh::cbnds obs;
bbs.reserve (newbbss.at(rl-1).size());
obs.reserve (newbbss.at(rl-1).size());
for (int c=0; c<(int)newbbss.at(rl-1).size(); ++c) {
rbbox const & ext = newbbss.at(rl-1).at(c);
bbvect const & ob = newobss.at(rl-1).at(c);
// TODO:
// assert (domain_from_coordbase);
ivect const spacereffact = spacereffacts.at(rl);
// Do not use basemglevel here, since this spacing is not use
// for Carpet (internally), but only used to check the spacing
// specified by the user in the parameter file. This spacing
// should be independent of basemglevel (i.e.,
// convergence_level), so that the user does not have to
// change the parameter file when the convergence level is
// changed.
rvect const spacing = base_spacing / rvect(spacereffact);
if (! all(abs(ext.stride() - spacing)
< spacing * (CCTK_REAL) 1.0e-10)) {
assert (dim==3);
CCTK_VWarn (0, __LINE__, __FILE__, CCTK_THORNSTRING,
"The grid spacing on refinement level %d is incorrect. I expected [%g,%g,%g], but I found [%g,%g,%g].",
int(rl),
double(spacing[0]), double(spacing[1]), double(spacing[2]),
double(ext.stride()[0]), double(ext.stride()[1]), double(ext.stride()[2]));
}
assert (all(abs(ext.stride() - spacing)
< spacing * (CCTK_REAL) 1.0e-10));
rvect offset = rvect(0);
if (c < num_offsets) {
if (rl >= offset_firstlevel) {
assert (dim==3);
offset = rvect(offsetx[c], offsety[c], offsetz[c]);
}
}
ManualCoordinates_OneLevel
(cctkGH, hh, rl, refinement_levels,
ext.lower() + offset, ext.upper() + offset, ob, bbs, obs);
}
// if we have more than 1 component, we might want to
// check if merging them makes sense
if(merge_overlapping_components && bbs.size() > 1) {
// now let's check if one or more of our components touch...
// we use this array to keep track of which component was merged
// with another.
vector<bool> merged_component (bbs.size(), false);
// loop over all components, starting at c=1
for (int c=1; c<(int)bbs.size(); ++c) {
ibset fun = bbs.at(c);
ibbox morefun = bbs.at(c);
// loop over all components with index < c
for(int sc=0; sc<c; ++sc) {
// calculate overlap of this and the previous component
fun &= bbs.at(sc);
// do we overlap ?
if(fun.size() > 0) {
// uh. this component will be merged
merged_component.at(c) = true;
// calculate union
morefun = morefun.expanded_containing(bbs.at(sc));
// update the previous component with the union !
bbs.at(sc) = morefun;
}
}
}
// now we need to get rid of those bboxes that were merged
vector<ibbox> mergedbbs;
for (int c=0;c<(int)bbs.size(); ++c) {
if (not merged_component.at(c)) {
mergedbbs.push_back (bbs.at(c));
}
}
bbs = mergedbbs;
} // if (merge_overlapping_components && ...)
// make multiprocessor aware
gh::cprocs ps;
SplitRegions (cctkGH, bbs, obs, ps);
bbss.at(rl) = bbs;
obss.at(rl) = obs;
pss.at(rl) = ps;
} // for rl
// make multigrid aware
MakeMultigridBoxes (cctkGH, bbss, obss, bbsss);
return 1;
}
} // namespace CarpetRegrid
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