POD_example_00001.cpp

POD basis computation using voloctree. This example computes the POD basis starting from a database of simulations defined on the same mesh and evaluate the reconstruction of a snapshot included in the database. To run: ./POD_example_00001
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POD basis computation using voloctree. This example computes the POD basis starting from a database of simulations defined on the same mesh and evaluate the reconstruction of a snapshot included in the database. To run: ./POD_example_00001

/*---------------------------------------------------------------------------*\
 *
 *  bitpit
 *
 *  Copyright (C) 2015-2021 OPTIMAD engineering Srl
 *
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 *  License
 *  This file is part of bitpit.
 *
 *  bitpit is free software: you can redistribute it and/or modify it
 *  under the terms of the GNU Lesser General Public License v3 (LGPL)
 *  as published by the Free Software Foundation.
 *
 *  bitpit 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 bitpit. If not, see <http://www.gnu.org/licenses/>.
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#include <array>
#if BITPIT_ENABLE_MPI
#include <mpi.h>
#endif
 
#include "pod.hpp"
 
using namespace bitpit;
 
void run()
{
    POD pod;
 
    for (int i=0; i<6; i++)
        pod.addSnapshot("./data", "test_set2."+std::to_string(i));
 
    pod.setMeshType(POD::MeshType::VOLOCTREE);
    pod.setStaticMesh(true);
    pod.setErrorMode(POD::ErrorMode::SINGLE);
    pod.setWriteMode(POD::WriteMode::DEBUG);
    pod.setMemoryMode(POD::MemoryMode::MEMORY_NORMAL);
    pod.setEnergyLevel(99);
 
    pod.setDirectory("pod");
    pod.setName("pod.test.solver");
    
    pod.addReconstructionSnapshot("./data", "test_set2.0");
    
    pod.run();
}
 
int main(int argc, char *argv[]) 
{
#if BITPIT_ENABLE_MPI
    MPI_Init(&argc,&argv);
#endif    
 
    try {
        run();
    } catch (const std::exception &exception) {
        log::cout() << exception.what();
        exit(1);
    }
 
#if BITPIT_ENABLE_MPI
    MPI_Finalize();
#endif
 
}