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test_sparse_matrix_profile_parallel.cc
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Tue, Nov 5, 15:34

test_sparse_matrix_profile_parallel.cc
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/**
* @file test_sparse_matrix_profile_parallel.cc
*
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date Mon Feb 07 17:33:51 2011
*
* @brief test the sparse matrix class in parallel
*
* @section LICENSE
*
* Copyright (©) 2010-2011 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 "aka_common.hh"
#include "mesh.hh"
#include "mesh_io_msh.hh"
#include "mesh_partition_scotch.hh"
#include "communicator.hh"
#include "sparse_matrix.hh"
#include "solver_mumps.hh"
/* -------------------------------------------------------------------------- */
/* -------------------------------------------------------------------------- */
/* Main */
/* -------------------------------------------------------------------------- */
int main(int argc, char *argv[])
{
akantu::initialize(argc, argv);
int dim = 2;
//#ifdef AKANTU_USE_IOHELPER
//akantu::ElementType type = akantu::_triangle_6;
//#endif //AKANTU_USE_IOHELPER
akantu::Mesh mesh(dim);
// akantu::debug::setDebugLevel(akantu::dblDump);
akantu::StaticCommunicator * comm = akantu::StaticCommunicator::getStaticCommunicator();
akantu::Int psize = comm->getNbProc();
akantu::Int prank = comm->whoAmI();
akantu::UInt n = 0;
/* ------------------------------------------------------------------------ */
/* Parallel initialization */
/* ------------------------------------------------------------------------ */
akantu::Communicator * communicator;
if(prank == 0) {
akantu::MeshIOMSH mesh_io;
mesh_io.read("triangle.msh", mesh);
akantu::MeshPartition * partition =
new akantu::MeshPartitionScotch(mesh, dim);
// partition->reorder();
mesh_io.write("triangle_reorder.msh", mesh);
n = mesh.getNbNodes();
partition->partitionate(psize);
communicator = akantu::Communicator::createCommunicatorDistributeMesh(mesh, partition);
delete partition;
} else {
communicator = akantu::Communicator::createCommunicatorDistributeMesh(mesh, NULL);
}
std::cout << "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA " << mesh.getNbGlobalNodes() << std::endl;
akantu::SparseMatrix sparse_matrix(mesh, akantu::_symmetric, 2, "mesh");
sparse_matrix.buildProfile();
akantu::Solver * solver = new akantu::SolverMumps(sparse_matrix);
if(prank == 0) {
for(akantu::UInt i = 0; i < n; ++i) {
solver->getRHS().storage()[i] = 1.;
}
}
akantu::debug::setDebugLevel(akantu::dblDump);
solver->initialize();
std::stringstream sstr; sstr << "profile_" << prank << ".mtx";
sparse_matrix.saveProfile(sstr.str());
akantu::finalize();
return EXIT_SUCCESS;
}

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