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rAKA/src/model/common/non_linear_solver/non_linear_solver_petsc.cc
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non_linear_solver_petsc.cc
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/**
* @file non_linear_solver_petsc.cc
*
* @author Nicolas Richart
*
* @date creation Mon Dec 31 2018
*
* @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 "non_linear_solver_petsc.hh"
#include "dof_manager_petsc.hh"
#include "mpi_communicator_data.hh"
/* -------------------------------------------------------------------------- */
#include <petscoptions.h>
/* -------------------------------------------------------------------------- */
namespace akantu {
NonLinearSolverPETSc::NonLinearSolverPETSc(
DOFManagerPETSc & dof_manager,
const NonLinearSolverType & non_linear_solver_type, const ID & id,
UInt memory_id)
: NonLinearSolver(dof_manager, non_linear_solver_type, id, memory_id),
dof_manager(dof_manager) {
std::unordered_map<NonLinearSolverType, SNESType>
petsc_non_linear_solver_types{
{NonLinearSolverType::_newton_raphson, SNESNEWTONLS},
{NonLinearSolverType::_linear, SNESKSPONLY},
{NonLinearSolverType::_gmres, SNESNGMRES},
{NonLinearSolverType::_bfgs, SNESQN},
{NonLinearSolverType::_cg, SNESNCG}};
for (const auto & pair : petsc_non_linear_solver_types) {
supported_type.insert(pair.first);
}
this->checkIfTypeIsSupported();
auto mpi_comm = dof_manager.getMPIComm();
PETSc_call(SNESCreate, mpi_comm, &snes);
auto it = petsc_non_linear_solver_types.find(non_linear_solver_type);
if (it != petsc_non_linear_solver_types.end()) {
PETSc_call(SNESSetType, snes, it->second);
}
}
/* -------------------------------------------------------------------------- */
NonLinearSolverPETSc::~NonLinearSolverPETSc() {
PETSc_call(SNESDestroy, &snes);
}
/* -------------------------------------------------------------------------- */
void NonLinearSolverPETSc::solve(SolverCallback & /*callback*/) {
}
/* -------------------------------------------------------------------------- */
void NonLinearSolverPETSc::parseSection(const ParserSection & section) {
auto parameters = section.getParameters();
for (auto && param : range(parameters.first, parameters.second)) {
PetscOptionsSetValue(NULL, param.getName().c_str(), param.getValue().c_str());
}
SNESSetFromOptions(snes);
PetscOptionsClear(NULL);
}
} // namespace akantu
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