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Sat, Jun 22, 12:36

pseudo_time.cc
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/**
* @file pseudo_time.cc
*
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date Wed Feb 17 09:49:10 2016
*
* @brief Implementation of a really simple integration scheme
*
* @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 "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) {}
/* -------------------------------------------------------------------------- */
void PseudoTime::corrector(const SolutionType &, Real) {
Array<Real> & us = this->dof_manager.getDOFs(this->dof_id);
const Array<Real> & deltas = this->dof_manager.getSolution(this->dof_id);
const Array<bool> & blocked_dofs =
this->dof_manager.getBlockedDOFs(this->dof_id);
UInt nb_degree_of_freedom = deltas.size();
auto u_it = us.begin_reinterpret(nb_degree_of_freedom);
auto bld_it = blocked_dofs.begin_reinterpret(nb_degree_of_freedom);
for (const auto & delta : deltas) {
const auto & bld = *bld_it;
auto & u = *u_it;
if (! bld) u += delta;
++u_it;
++bld_it;
}
}
/* -------------------------------------------------------------------------- */
void PseudoTime::assembleJacobian(const SolutionType &, Real) {
SparseMatrix & J = this->dof_manager.getMatrix("J");
const SparseMatrix & K = this->dof_manager.getMatrix("K");
if (K.getRelease() == k_release)
return;
J.clear();
J.add(K);
k_release = K.getRelease();
}
/* -------------------------------------------------------------------------- */
void PseudoTime::assembleResidual(bool) {}
/* -------------------------------------------------------------------------- */
} // akantu

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