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pseudo_time.cc
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/**
* @file pseudo_time.cc
*
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date creation: Fri Feb 19 2016
* @date last modification: Wed Mar 27 2019
*
* @brief Implementation of a really simple integration scheme
*
*
* @section LICENSE
*
* Copyright (©) 2016-2021 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 "pseudo_time.hh"
#include "dof_manager.hh"
#include "sparse_matrix.hh"
/* -------------------------------------------------------------------------- */
namespace akantu {
/* -------------------------------------------------------------------------- */
PseudoTime::PseudoTime(DOFManager & dof_manager, const ID & dof_id)
: IntegrationScheme(dof_manager, dof_id, 0), k_release(0) {}
/* -------------------------------------------------------------------------- */
std::vector<std::string> PseudoTime::getNeededMatrixList() { return {"K"}; }
/* -------------------------------------------------------------------------- */
void PseudoTime::predictor(Real /*delta_t*/) {}
/* -------------------------------------------------------------------------- */
void PseudoTime::corrector(const SolutionType & /*type*/, Real /*delta_t*/) {
auto & us = this->dof_manager.getDOFs(this->dof_id);
const auto & deltas = this->dof_manager.getSolution(this->dof_id);
const auto & blocked_dofs = this->dof_manager.getBlockedDOFs(this->dof_id);
for (auto && tuple : zip(make_view(us), deltas, make_view(blocked_dofs))) {
auto & u = std::get<0>(tuple);
const auto & delta = std::get<1>(tuple);
const auto & bld = std::get<2>(tuple);
if (not bld) {
u += delta;
}
}
}
/* -------------------------------------------------------------------------- */
void PseudoTime::assembleJacobian(const SolutionType & /*type*/,
Real /*delta_t*/) {
SparseMatrix & J = this->dof_manager.getMatrix("J");
const SparseMatrix & K = this->dof_manager.getMatrix("K");
bool does_j_need_update = false;
does_j_need_update |= K.getRelease() != k_release;
does_j_need_update |= this->dof_manager.hasBlockedDOFsChanged();
if (not does_j_need_update) {
AKANTU_DEBUG_OUT();
return;
}
J.copyProfile(K);
// J.zero();
J.add(K);
k_release = K.getRelease();
}
/* -------------------------------------------------------------------------- */
void PseudoTime::assembleResidual(bool /*is_lumped*/) {}
/* -------------------------------------------------------------------------- */
} // namespace akantu

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