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test_segment_nodetype.cc
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Thu, Jul 25, 14:05

test_segment_nodetype.cc
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/**
* @file test_segment_nodetype.cc
*
* @author Marco Vocialta <marco.vocialta@epfl.ch>
*
* @date creation: Fri Sep 18 2015
*
* @brief Test to verify that the node type is correctly associated to
* the segments in parallel
*
* @section LICENSE
*
* Copyright (©) 2015 EPFL (Ecole Polytechnique Fédérale de Lausanne) Laboratory
* (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* Akantu is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* Akantu 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 Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Akantu. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#include "mesh_utils.hh"
#include "distributed_synchronizer.hh"
/* -------------------------------------------------------------------------- */
using namespace akantu;
int main(int argc, char *argv[]) {
initialize(argc, argv);
UInt spatial_dimension = 3;
Mesh mesh(spatial_dimension);
StaticCommunicator & comm = StaticCommunicator::getStaticCommunicator();
Int psize = comm.getNbProc();
Int prank = comm.whoAmI();
DistributedSynchronizer * dist = NULL;
// partition the mesh
if (prank == 0) {
mesh.read("mesh.msh");
MeshPartitionScotch partition(mesh, spatial_dimension);
partition.partitionate(psize);
dist = DistributedSynchronizer::createDistributedSynchronizerMesh(mesh, &partition);
} else {
dist = DistributedSynchronizer::createDistributedSynchronizerMesh(mesh, NULL);
}
// compute the node types for each segment
Mesh mesh_facets(mesh.initMeshFacets());
MeshUtils::buildSegmentToNodeType(mesh, mesh_facets, dist);
// verify that the number of segments per node type makes sense
std::map<Int, UInt> nb_facets_per_nodetype;
UInt nb_segments = 0;
for (ghost_type_t::iterator gt = ghost_type_t::begin();
gt != ghost_type_t::end();
++gt) {
GhostType ghost_type = *gt;
const Array<Int> & segment_to_nodetype = mesh_facets.getData<Int>("segment_to_nodetype",
_segment_2, ghost_type);
// count the number of segments per node type
for (UInt s = 0; s < segment_to_nodetype.getSize(); ++s) {
if (nb_facets_per_nodetype.find(segment_to_nodetype(s)) == nb_facets_per_nodetype.end())
nb_facets_per_nodetype[segment_to_nodetype(s)] = 1;
else
++nb_facets_per_nodetype[segment_to_nodetype(s)];
}
nb_segments += segment_to_nodetype.getSize();
}
// checking the solution
if (nb_segments != 24)
AKANTU_DEBUG_ERROR("The number of segments is wrong");
if (prank == 0) {
if (nb_facets_per_nodetype[-1] != 3 ||
nb_facets_per_nodetype[-2] != 9 ||
nb_facets_per_nodetype[-3] != 12)
AKANTU_DEBUG_ERROR("The segments of processor 0 have the wrong node type");
if (nb_facets_per_nodetype.size() > 3)
AKANTU_DEBUG_ERROR("Processor 0 cannot have any slave segment");
}
if (prank == psize - 1 && nb_facets_per_nodetype.find(-2) != nb_facets_per_nodetype.end())
AKANTU_DEBUG_ERROR("The last processor must not have any master facets");
finalize();
return 0;
}

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