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118 lines
3.6 KiB
C++
118 lines
3.6 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: 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 ActionParameters: Serializable {
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GRID_SERIALIZABLE_CLASS_MEMBERS(ActionParameters,
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double, beta)
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ActionParameters() = default;
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template <class ReaderClass >
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ActionParameters(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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Grid_init(&argc, &argv);
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GridLogLayout();
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// Typedefs to simplify notation
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typedef GenericHMCRunner<MinimumNorm2> HMCWrapper; // Uses the default minimum norm
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HMCWrapper TheHMC;
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typedef Grid::XmlReader Serialiser;
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// Grid from the command line
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TheHMC.Resources.AddFourDimGrid("gauge");
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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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// Read parameters from input file
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ActionParameters WilsonPar(Reader);
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// Checkpointer definition
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CheckpointerParameters CPparams(Reader);
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//TheHMC.Resources.LoadNerscCheckpointer(CPparams);
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// Store metadata in the Scidac checkpointer
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TheHMC.Resources.LoadScidacCheckpointer(CPparams, WilsonPar);
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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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// here there is too much indirection
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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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/////////////////////////////////////////////////////////////
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// Collect actions, here use more encapsulation
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// need wrappers of the fermionic classes
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// that have a complex construction
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// standard
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WilsonGaugeActionR Waction(WilsonPar.beta);
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ActionLevel<HMCWrapper::Field> Level1(1);
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Level1.push_back(&Waction);
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//Level1.push_back(WGMod.getPtr());
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TheHMC.TheAction.push_back(Level1);
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/////////////////////////////////////////////////////////////
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// HMC parameters are serialisable
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TheHMC.Parameters.initialize(Reader);
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//TheHMC.Parameters.MD.MDsteps = 17;
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//TheHMC.Parameters.MD.trajL = 1.0;
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TheHMC.Run(); // no smearing
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Grid_finalize();
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} // main
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