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manual_restart.cc
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Tue, Nov 19, 14:20

manual_restart.cc
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/**
* @file manual_restart.cc
*
* @author Dana Christen <dana.christen@epfl.ch>
*
* @date creation: Fri Mar 16 2018
* @date last modification: Fri Mar 16 2018
*
* @brief Tools to do a restart
*
*
* @section LICENSE
*
* Copyright (©) 2015-2021 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 "manual_restart.hh"
#include "dof_manager_default.hh"
#include "dof_synchronizer.hh"
/* -------------------------------------------------------------------------- */
#include <fstream>
/* -------------------------------------------------------------------------- */
using namespace akantu;
void dumpArray(const Array<Real> & array, const std::string & fname) {
std::ofstream outFile;
outFile.open(fname.c_str());
outFile.precision(9);
outFile.setf(std::ios::scientific);
UInt size = array.size();
UInt nb_component = array.getNbComponent();
outFile << size << std::endl;
outFile << nb_component << std::endl;
Array<Real>::const_iterator<Vector<Real>> tit = array.begin(nb_component);
Array<Real>::const_iterator<Vector<Real>> tend = array.end(nb_component);
for (; tit != tend; ++tit) {
for (UInt c = 0; c < nb_component; ++c) {
if (c != 0) {
outFile << " ";
}
outFile << (*tit)(c);
}
outFile << std::endl;
}
outFile.close();
}
void loadArray(Array<Real> & array, const std::string & fname) {
std::ifstream inFile;
inFile.open(fname.c_str());
inFile.precision(9);
inFile.setf(std::ios::scientific);
UInt size(0), nb_comp(0);
inFile >> size;
inFile >> nb_comp;
AKANTU_DEBUG_ASSERT(array.getNbComponent() == nb_comp,
"BAD NUM OF COMPONENTS");
AKANTU_DEBUG_ASSERT(array.size() == size,
"loadArray: number of data points in file ("
<< size << ") does not correspond to array size ("
<< array.size() << ")!!");
Array<Real>::iterator<Vector<Real>> tit = array.begin(nb_comp);
Array<Real>::iterator<Vector<Real>> tend = array.end(nb_comp);
array.resize(size);
for (UInt i(0); i < size; ++i, ++tit) {
for (UInt c = 0; c < nb_comp; ++c) {
inFile >> (*tit)(c);
}
}
inFile.close();
}
/* -------------------------------------------------------------------------- */
void loadRestart(akantu::SolidMechanicsModel & model, const std::string & fname,
akantu::UInt prank) {
const akantu::Mesh & mesh = model.getMesh();
const akantu::UInt spatial_dimension = model.getMesh().getSpatialDimension();
auto & dof_manager = dynamic_cast<DOFManagerDefault &>(model.getDOFManager());
if (prank == 0) {
akantu::Array<akantu::Real> full_reload_array(mesh.getNbGlobalNodes(),
spatial_dimension);
loadArray(full_reload_array, fname);
dof_manager.getSynchronizer().scatter(model.getDisplacement(),
full_reload_array);
} else {
dof_manager.getSynchronizer().scatter(model.getDisplacement());
}
}
/* -------------------------------------------------------------------------- */
void loadRestart(akantu::SolidMechanicsModel & model,
const std::string & fname) {
loadArray(model.getDisplacement(), fname);
}
/* -------------------------------------------------------------------------- */
void dumpRestart(akantu::SolidMechanicsModel & model, const std::string & fname,
akantu::UInt prank) {
const akantu::Mesh & mesh = model.getMesh();
const akantu::UInt spatial_dimension = model.getMesh().getSpatialDimension();
auto & dof_manager = dynamic_cast<DOFManagerDefault &>(model.getDOFManager());
if (prank == 0) {
akantu::Array<akantu::Real> full_array(mesh.getNbGlobalNodes(),
spatial_dimension);
dof_manager.getSynchronizer().gather(model.getDisplacement(), full_array);
dumpArray(full_array, fname);
} else {
dof_manager.getSynchronizer().gather(model.getDisplacement());
}
}
/* -------------------------------------------------------------------------- */
void dumpRestart(akantu::SolidMechanicsModel & model,
const std::string & fname) {
dumpArray(model.getDisplacement(), fname);
}

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