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solver_vector_distributed.cc
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Tue, May 7, 13:48

solver_vector_distributed.cc
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/**
* @file solver_vector_distributed.cc
*
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date creation: Tue Jan 01 2019
* @date last modification: Sat May 23 2020
*
* @brief Solver vector interface for distributed arrays
*
*
* @section LICENSE
*
* Copyright (©) 2018-2021 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_distributed.hh"
#include "dof_manager_default.hh"
#include "dof_synchronizer.hh"
/* -------------------------------------------------------------------------- */
namespace akantu {
/* -------------------------------------------------------------------------- */
SolverVectorDistributed::SolverVectorDistributed(
DOFManagerDefault & dof_manager, const ID & id)
: SolverVectorDefault(dof_manager, id) {}
/* -------------------------------------------------------------------------- */
SolverVectorDistributed::SolverVectorDistributed(
const SolverVectorDefault & vector, const ID & id)
: SolverVectorDefault(vector, id) {}
/* -------------------------------------------------------------------------- */
Array<Real> & SolverVectorDistributed::getGlobalVector() {
auto & synchronizer = dof_manager.getSynchronizer();
if (not this->global_vector) {
this->global_vector =
std::make_unique<Array<Real>>(0, 1, "global_residual");
}
if (synchronizer.getCommunicator().whoAmI() == 0) {
this->global_vector->resize(dof_manager.getSystemSize());
synchronizer.gather(this->vector, *this->global_vector);
} else {
synchronizer.gather(this->vector);
}
return *this->global_vector;
}
/* -------------------------------------------------------------------------- */
void SolverVectorDistributed::setGlobalVector(const Array<Real> & solution) {
auto & synchronizer = dof_manager.getSynchronizer();
if (synchronizer.getCommunicator().whoAmI() == 0) {
synchronizer.scatter(this->vector, solution);
} else {
synchronizer.scatter(this->vector);
}
}
/* -------------------------------------------------------------------------- */
bool SolverVectorDistributed::isFinite() const {
auto & synchronizer = dof_manager.getSynchronizer();
bool is_finite = this->vector.isFinite();
synchronizer.getCommunicator().allReduce(is_finite,
SynchronizerOperation::_land);
return is_finite;
}
/* -------------------------------------------------------------------------- */
} // namespace akantu

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