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dumper_lammps.cc
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dumper_lammps.cc
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/**
* @file dumper_lammps.cc
*
* @author Guillaume Anciaux <guillaume.anciaux@epfl.ch>
*
* @date Tue Aug 12 14:38:53 2014
*
* @brief This dumper allows to generate lammps text files
*
* @section LICENSE
*
* Copyright INRIA and CEA
*
* The LibMultiScale is a C++ parallel framework for the multiscale
* coupling methods dedicated to material simulations. This framework
* provides an API which makes it possible to program coupled simulations
* and integration of already existing codes.
*
* This Project was initiated in a collaboration between INRIA Futurs Bordeaux
* within ScAlApplix team and CEA/DPTA Ile de France.
* The project is now continued at the Ecole Polytechnique Fédérale de Lausanne
* within the LSMS/ENAC laboratory.
*
* This software is governed by the CeCILL-C license under French law and
* abiding by the rules of distribution of free software. You can use,
* modify and/ or redistribute the software under the terms of the CeCILL-C
* license as circulated by CEA, CNRS and INRIA at the following URL
* "http://www.cecill.info".
*
* As a counterpart to the access to the source code and rights to copy,
* modify and redistribute granted by the license, users are provided only
* with a limited warranty and the software's author, the holder of the
* economic rights, and the successive licensors have only limited
* liability.
*
* In this respect, the user's attention is drawn to the risks associated
* with loading, using, modifying and/or developing or reproducing the
* software by the user in light of its specific status of free software,
* that may mean that it is complicated to manipulate, and that also
* therefore means that it is reserved for developers and experienced
* professionals having in-depth computer knowledge. Users are therefore
* encouraged to load and test the software's suitability as regards their
* requirements in conditions enabling the security of their systems and/or
* data to be ensured and, more generally, to use and operate it in the
* same conditions as regards security.
*
* The fact that you are presently reading this means that you have had
* knowledge of the CeCILL-C license and that you accept its terms.
*
*/
#include "lm_common.hh"
#include "dumper_lammps.hh"
#include "lib_md.hh"
#include "lib_continuum.hh"
#include "lib_dd.hh"
#include "compute_extract.hh"
#include <iomanip>
#include "ref_point_data.hh"
#include "communicator.hh"
#include <fstream>
/* -------------------------------------------------------------------------- */
__BEGIN_LIBMULTISCALE__
template <typename Cont>
void DumperLammps<Cont>::dump(Cont & cont){
static const UInt Dim = Cont::Dim;
//get the parallel context
Communicator & comm = Communicator::getCommunicator();
CommGroup group = cont.getCommGroup();
UInt my_rank = comm.groupRank(lm_my_proc_id, group);
UInt nb_procs = comm.getNBprocsOnGroup(group);
LM_ASSERT(nb_procs == 1, "DumperLammps is not yet parallel");
//prepare to retreive data from all other processors
ComputeExtract<Cont> positions("ComputeExtract:"+this->getID(),Dim);
positions.setParam("FIELD",_position);
positions.build(cont);
ComputeExtract<Cont> velocities("ComputeExtract:"+this->getID(),Dim);
velocities.setParam("FIELD",_velocity);
velocities.build(cont);
UInt nb_atoms = positions.getTotalNbData()/Dim;
std::ofstream file;
//open the file and write the headers
if (my_rank == 0){
std::stringstream sstr;
sstr << this->getBaseName() << "_" << current_step << ".lammps";
file.open(sstr.str().c_str());
if (!file.is_open()) LM_FATAL("could not open file " << sstr.str());
file << "LAMMPS data file\n\n\n";
file << nb_atoms << " atoms\n\n";
UInt ntypes = geometries_for_types.size();
if (ntypes == 0) ++ntypes;
file << ntypes << " atom types\n\n";
const Quantity<Length,3> & xmin = cont.getBoundingBox().getXmin();
const Quantity<Length,3> & xmax = cont.getBoundingBox().getXmax();
for (UInt i = 0; i < 3; ++i) {
file << std::scientific << std::setprecision(15)
<< xmin[i] << " " << xmax[i] << " ";
if (i == 0) file << "xlo xhi\n";
if (i == 1) file << "ylo yhi\n";
if (i == 2) file << "zlo zhi\n";
}
file << "Masses\n\n";
file << "1 " << std::scientific << std::setprecision(15)
<< cont.get(0).mass() << "\n\n";
file << "Atoms\n\n";
}
UInt index_atom = 1;
for (UInt p = 0; p < nb_procs ; ++p) {
std::vector<Real> & data1 = positions.gatherData(p);
if (my_rank == 0){
for (UInt j = 0 ; j < data1.size()/Dim ; ++j,++index_atom){
Real X[3] = {0.,0.,0.};
for (UInt i = 0; i < Dim; ++i)
X[i] = data1[j*Dim+i];
UInt type =1;
for (UInt g = 0 ; g < geometries_for_types.size(); ++g){
Geometry * geom = geometries_for_types[g];
if (geom->contains<Dim>(X)) type = g+1;
}
file << index_atom << " " << type << " "
<< X[0] << " " << X[1] << " " << X[2] << std::endl;
}
}
}
index_atom = 1;
for (UInt p = 0; p < nb_procs ; ++p) {
std::vector<Real> & data2 = velocities.gatherData(p);
if (my_rank == 0){
file << "Velocities" << std::endl;
file << " " << std::endl;
for (UInt j = 0 ; j < data2.size()/Dim ; ++j,++index_atom){
Real X[3] = {0.,0.,0.};
for (UInt i = 0; i < Dim; ++i)
X[i] = data2[j*Dim+i];
file << index_atom << " " << X[0] << " " << X[1] << " " << X[2] << std::endl;
}
}
}
file.close();
}
/* -------------------------------------------------------------------------- */
/* LMDESC LAMMPS
This dumper ouputs LAMMPS text files
*/
/* LMHERITANCE dumper */
/* LMEXAMPLE DUMPER lmp LAMMPS INPUT md FREQ 100 PREFIX ./ */
template <typename Cont>
void DumperLammps<Cont>::declareParams(){
Dumper<Cont>::declareParams();
// Till commented this, since the variable is not used. In any case, the current position is dumped, never the initial
//this->parseKeyword("MODE",mode);
// parseCumulativeKeyword("ADDTYPE",ParserGeometry,geometries_for_types);
// if ("ADDTYPE" == key){
// GeomID geom;
// Parser::parseGeometry(geom,line);
// geometries_for_types.push_back(GeometryManager::getManager().getGeometry(geom));
// return true;
// }
}
/* -------------------------------------------------------------------------- */
DECLARE_DUMPER_REF(DumperLammps,LIST_ATOM_MODEL)
DECLARE_DUMPER_REF(DumperLammps,LIST_CONTINUUM_MODEL)
DECLARE_DUMPER_REF(DumperLammps,LIST_DD_MODEL)
DECLARE_DUMPER_REFPOINT(DumperLammps)
DECLARE_DUMPER_GENERIC_MESH(DumperLammps)
__END_LIBMULTISCALE__

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