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156 lines
4.2 KiB
C++
156 lines
4.2 KiB
C++
/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: ./tests/Test_hmc_WilsonFermionGauge.cc
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Copyright (C) 2015
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Author: Peter Boyle <pabobyle@ph.ed.ac.uk>
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Author: neo <cossu@post.kek.jp>
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Author: Guido Cossu <guido.cossu@ed.ac.uk>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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See the full license in the file "LICENSE" in the top level distribution
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directory
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*************************************************************************************/
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/* END LEGAL */
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#include <Grid/Grid.h>
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namespace Grid{
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struct RMHMCActionParameters: Serializable {
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GRID_SERIALIZABLE_CLASS_MEMBERS(RMHMCActionParameters,
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double, gauge_beta)
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template <class ReaderClass >
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RMHMCActionParameters(Reader<ReaderClass>& Reader){
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read(Reader, "Action", *this);
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}
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};
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}
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int main(int argc, char **argv) {
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using namespace Grid;
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// using namespace Grid::QCD;
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Grid_init(&argc, &argv);
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GridLogIntegrator.Active(1);
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int threads = GridThread::GetThreads();
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// here make a routine to print all the relevant information on the run
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std::cout << GridLogMessage << "Grid is setup to use " << threads << " threads" << std::endl;
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// Typedefs to simplify notation
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typedef GenericHMCRunner<ImplicitMinimumNorm2> HMCWrapper; // Uses the default minimum norm
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// Serialiser
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// typedef Grid::JSONReader Serialiser;
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typedef Grid::XmlReader Serialiser;
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HMCWrapper TheHMC;
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TheHMC.ReadCommandLine(argc, argv); // these can be parameters from file
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// Reader, file should come from command line
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if (TheHMC.ParameterFile.empty()){
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std::cout << "Input file not specified."
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<< "Use --ParameterFile option in the command line.\nAborting"
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<< std::endl;
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exit(1);
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}
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Serialiser Reader(TheHMC.ParameterFile);
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RMHMCActionParameters ActionParams(Reader);
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// Grid from the command line
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TheHMC.Resources.AddFourDimGrid("gauge");
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// Checkpointer definition
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CheckpointerParameters CPparams(Reader);
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// TheHMC.Resources.LoadBinaryCheckpointer(CPparams);
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TheHMC.Resources.LoadNerscCheckpointer(CPparams);
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RNGModuleParameters RNGpar(Reader);
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TheHMC.Resources.SetRNGSeeds(RNGpar);
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// Construct observables
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typedef PlaquetteMod<HMCWrapper::ImplPolicy> PlaqObs;
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typedef TopologicalChargeMod<HMCWrapper::ImplPolicy> QObs;
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TheHMC.Resources.AddObservable<PlaqObs>();
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TopologyObsParameters TopParams(Reader);
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TheHMC.Resources.AddObservable<QObs>(TopParams);
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/////////////////////////////////////////////////////////////
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// Collect actions
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WilsonGaugeActionR Waction(ActionParams.gauge_beta);
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ActionLevel<HMCWrapper::Field> Level1(1);
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Level1.push_back(&Waction);
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TheHMC.TheAction.push_back(Level1);
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/////////////////////////////////////////////////////////////
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TheHMC.Parameters.initialize(Reader);
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TheHMC.Run();
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Grid_finalize();
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} // main
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/* Examples for input files
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JSON
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{
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"Checkpointer": {
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"config_prefix": "ckpoint_json_lat",
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"rng_prefix": "ckpoint_json_rng",
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"saveInterval": 10,
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"format": "IEEE64BIG"
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},
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"RandomNumberGenerator": {
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"serial_seeds": "1 2 3 4 6",
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"parallel_seeds": "55 7 8 9 11"
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},
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"Action":{
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"gauge_beta": 5.8
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},
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"TopologyMeasurement":{
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"interval": 1,
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"do_smearing": true,
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"Smearing":{
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"steps": 200,
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"step_size": 0.01,
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"meas_interval": 50,
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"maxTau": 2.0
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}
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},
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"HMC":{
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"StartTrajectory": 0,
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"Trajectories": 10,
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"MetropolisTest": true,
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"NoMetropolisUntil": 10,
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"StartingType": "HotStart",
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"MD":{
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"name": "MinimumNorm2",
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"MDsteps": 40,
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"trajL": 1.0
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}
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}
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}
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XML example not provided yet
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*/
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