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/*
This file is part of p4est.
p4est is a C library to manage a collection (a forest) of multiple
connected adaptive quadtrees or octrees in parallel.
Copyright (C) 2012 Carsten Burstedde
p4est is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
p4est is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with p4est; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef P4_TO_P8
#include <p4est_wrap.h>
#else
#include <p8est_wrap.h>
#endif
static int
wrap_adapt_partition (p4est_wrap_t * wrap, int weight_exponent)
{
if (p4est_wrap_adapt (wrap)) {
if (p4est_wrap_partition (wrap, weight_exponent)) {
p4est_wrap_complete (wrap);
}
return 1;
}
return 0;
}
int
main (int argc, char **argv)
{
int mpiret;
int changed;
int loop;
#ifdef P4EST_ENABLE_DEBUG
int lp = SC_LP_DEFAULT;
#else
int lp = SC_LP_PRODUCTION;
#endif
p4est_locidx_t jl;
p4est_wrap_leaf_t *leaf;
p4est_ghost_t *ghost;
p4est_mesh_t *mesh;
sc_MPI_Comm mpicomm;
p4est_wrap_t *wrap;
mpiret = sc_MPI_Init (&argc, &argv);
SC_CHECK_MPI (mpiret);
mpicomm = sc_MPI_COMM_WORLD;
sc_init (mpicomm, 0, 0, NULL, lp);
p4est_init (NULL, lp);
#ifndef P4_TO_P8
wrap = p4est_wrap_new_rotwrap (mpicomm, 0);
#else
wrap = p8est_wrap_new_rotwrap (mpicomm, 0);
#endif
ghost = p4est_wrap_get_ghost (wrap);
SC_CHECK_ABORT (ghost != NULL, "Get ghost");
ghost = NULL;
mesh = p4est_wrap_get_mesh (wrap);
SC_CHECK_ABORT (mesh != NULL, "Get mesh");
mesh = NULL;
for (loop = 0; loop < 3; ++loop) {
/* mark for refinement */
for (jl = 0, leaf = p4est_wrap_leaf_first (wrap); leaf != NULL;
jl++, leaf = p4est_wrap_leaf_next (leaf)) {
if (leaf->which_quad % 3 == 0) {
p4est_wrap_mark_refine (wrap, leaf->which_tree, leaf->which_quad);
}
}
SC_CHECK_ABORT (jl == wrap->p4est->local_num_quadrants, "Iterator");
changed = wrap_adapt_partition (wrap, 1);
SC_CHECK_ABORT (changed, "Wrap refine");
}
for (loop = 0; loop < 2; ++loop) {
/* mark some elements for coarsening that does not effect anything */
for (jl = 0, leaf = p4est_wrap_leaf_first (wrap); leaf != NULL;
jl++, leaf = p4est_wrap_leaf_next (leaf)) {
if (leaf->which_quad % 5 == 0) {
p4est_wrap_mark_refine (wrap, leaf->which_tree, leaf->which_quad);
p4est_wrap_mark_coarsen (wrap, leaf->which_tree, leaf->which_quad);
}
}
SC_CHECK_ABORT (jl == wrap->p4est->local_num_quadrants, "Iterator");
changed = wrap_adapt_partition (wrap, 0);
SC_CHECK_ABORT (!changed, "Wrap noop");
}
for (loop = 0; loop < 2; ++loop) {
/* mark for coarsening */
for (jl = 0, leaf = p4est_wrap_leaf_first (wrap); leaf != NULL;
jl++, leaf = p4est_wrap_leaf_next (leaf)) {
if ((leaf->which_quad / 13) % 17 != 3) {
p4est_wrap_mark_coarsen (wrap, leaf->which_tree, leaf->which_quad);
}
}
SC_CHECK_ABORT (jl == wrap->p4est->local_num_quadrants, "Iterator");
(void) wrap_adapt_partition (wrap, 0);
}
p4est_wrap_destroy (wrap);
sc_finalize ();
mpiret = sc_MPI_Finalize ();
SC_CHECK_MPI (mpiret);
return 0;
}
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