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rAKA/src/solver/solver_vector_petsc.cc
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solver_vector_petsc.cc
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/**
* @file solver_vector_petsc.cc
*
* @author Nicolas Richart
*
* @date creation Tue Jan 01 2019
*
* @brief A Documented file.
*
* @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 "solver_vector_petsc.hh"
#include "dof_manager_petsc.hh"
#include "mpi_communicator_data.hh"
/* -------------------------------------------------------------------------- */
namespace akantu {
/* -------------------------------------------------------------------------- */
SolverVectorPETSc::SolverVectorPETSc(DOFManagerPETSc & dof_manager,
const ID & id)
: SolverVector(dof_manager, id), dof_manager(dof_manager) {
auto && mpi_comm = dof_manager.getMPIComm();
PETSc_call(VecCreate, mpi_comm, &vector);
PETSc_call(PetscObjectSetName, reinterpret_cast<PetscObject>(vector), id.c_str());
}
/* -------------------------------------------------------------------------- */
SolverVectorPETSc::SolverVectorPETSc(const SolverVectorPETSc & vector,
const ID & id)
: SolverVector(vector, id), dof_manager(vector.dof_manager) {
PETSc_call(VecDuplicate, vector.vector, &this->vector);
PETSc_call(PetscObjectSetName, reinterpret_cast<PetscObject>(this->vector), id.c_str());
PETSc_call(VecCopy, vector.vector, this->vector);
}
/* -------------------------------------------------------------------------- */
SolverVectorPETSc::~SolverVectorPETSc() {
if (vector) {
PETSc_call(VecDestroy, &vector);
}
}
/* -------------------------------------------------------------------------- */
void SolverVectorPETSc::resize() {
PETSc_call(VecSetSizes, vector, dof_manager.getPureLocalSystemSize(),
dof_manager.getSystemSize());
auto & is_ltog_mapping = dof_manager.getISLocalToGlobalMapping();
PETSc_call(VecSetLocalToGlobalMapping, vector, is_ltog_mapping);
}
/* -------------------------------------------------------------------------- */
void SolverVectorPETSc::clear() {
PETSc_call(VecSet, vector, 0.);
applyModifications();
}
/* -------------------------------------------------------------------------- */
void SolverVectorPETSc::applyModifications() {
PETSc_call(VecAssemblyBegin, vector);
PETSc_call(VecAssemblyEnd, vector);
}
} // namespace akantu
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