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test_dumper.cc
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Tue, Dec 3, 12:49

test_dumper.cc
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/**
* Copyright (©) 2014-2023 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* This file is part of Akantu
*
* 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 "dumpable.hh"
#include "dumper_iohelper_paraview.hh"
#include "dumper_nodal_field.hh"
#include "dumper_text.hh"
#include "dumper_variable.hh"
#include "dumpable_inline_impl.hh"
#include "solid_mechanics_model.hh"
/* -------------------------------------------------------------------------- */
using namespace akantu;
int main(int argc, char * argv[]) {
initialize("input_file.dat", argc, argv);
Int spatial_dimension = 3;
Mesh mesh(spatial_dimension);
mesh.read("test_dumper.msh");
SolidMechanicsModel model(mesh);
auto && mat_selector =
std::make_shared<MeshDataMaterialSelector<std::string>>("physical_names",
model);
model.setMaterialSelector(mat_selector);
model.initFull();
model.assembleInternalForces();
Real time_step = 0.1;
const Array<Real> & coord = mesh.getNodes();
Array<Real> & disp = model.getDisplacement();
Array<bool> & bound = model.getBlockedDOFs();
for (Int n = 0; n < mesh.getNbNodes(); ++n) {
Real dist = 0.;
for (Int d = 0; d < spatial_dimension; ++d) {
dist += coord(n, d) * coord(n, d);
}
dist = sqrt(dist);
for (Int d = 0; d < spatial_dimension; ++d) {
disp(n, d) = (d + 1) * dist;
bound(n, d) = bool((n % 2) + d);
}
}
// dump boundary bottom as reference
model.setGroupDirectory("paraview", "Bottom");
model.setGroupBaseName("paraview_bottom", "Bottom");
model.addDumpGroupField("displacement", "Bottom");
model.addDumpGroupField("blocked_dofs", "Bottom");
Int nbp = 3;
DumperParaview prvdumper("paraview_bottom_parallel", "paraview", false);
iohelper::Dumper & prvdpr = prvdumper.getDumper();
for (Int p = 0; p < nbp; ++p) {
prvdpr.setParallelContext(p, nbp, 0);
if (p != 0) {
prvdumper.unRegisterField("connectivities");
prvdumper.unRegisterField("element_type");
prvdumper.unRegisterField("positions");
prvdumper.unRegisterField("displacement");
}
prvdumper.registerFilteredMesh(
mesh, mesh.getElementGroup("Bottom").getElements(),
mesh.getElementGroup("Bottom").getNodeGroup().getNodes());
prvdumper.registerField(
"displacement",
std::make_shared<dumpers::NodalField<Real, true>>(
model.getDisplacement(), 0, 0,
&(mesh.getElementGroup("Bottom").getNodeGroup().getNodes())));
prvdumper.dump(0);
}
DumperText txtdumper("text_bottom", iohelper::_tdm_csv);
txtdumper.setDirectory("paraview");
txtdumper.setPrecision(8);
txtdumper.setTimeStep(time_step);
txtdumper.registerFilteredMesh(
mesh, mesh.getElementGroup("Bottom").getElements(),
mesh.getElementGroup("Bottom").getNodeGroup().getNodes());
txtdumper.registerField(
"displacement",
std::make_shared<dumpers::NodalField<Real, true>>(
model.getDisplacement(), 0, 0,
&(mesh.getElementGroup("Bottom").getNodeGroup().getNodes())));
txtdumper.registerField(
"blocked_dofs",
std::make_shared<dumpers::NodalField<bool, true>>(
model.getBlockedDOFs(), 0, 0,
&(mesh.getElementGroup("Bottom").getNodeGroup().getNodes())));
Real pot_energy = 1.2345567891;
Vector<Real> gforces(2);
gforces.fill(1.);
txtdumper.registerVariable(
"potential_energy",
std::make_shared<dumpers::Variable<Real>>(pot_energy));
txtdumper.registerVariable(
"global_forces",
std::make_shared<dumpers::Variable<Vector<Real>>>(gforces));
// dump a first time before the main loop
model.dumpGroup("Bottom");
txtdumper.dump();
Real time = 0.;
for (Int i = 1; i < 5; ++i) {
pot_energy += 2.;
gforces(0) += 0.1;
gforces(1) += 0.2;
// pre -> cor
// increment time after all steps of integration
time += time_step;
// dump after time increment
if (i % 2 == 0) {
txtdumper.dump(time, i);
model.dumpGroup("Bottom");
// parallel test
for (Int p = 0; p < nbp; ++p) {
prvdpr.setParallelContext(p, nbp, 0);
prvdumper.dump(i);
}
}
}
finalize();
return EXIT_SUCCESS;
}

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