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133 lines
4.4 KiB
C++
133 lines
4.4 KiB
C++
/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: ./tests/Test_hmc_WilsonAdjointFermionGauge.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: Peter Boyle <paboyle@ph.ed.ac.uk>
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Author: neo <cossu@post.kek.jp>
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Author: paboyle <paboyle@ph.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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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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// Here change the allowed (higher) representations
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typedef Representations< FundamentalRepresentation, AdjointRepresentation > TheRepresentations;
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Grid_init(&argc, &argv);
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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 GenericHMCRunnerHirep<TheRepresentations, MinimumNorm2> HMCWrapper;
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typedef WilsonAdjImplR FermionImplPolicy; // gauge field implemetation for the pseudofermions
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typedef WilsonAdjFermionR FermionAction; // type of lattice fermions (Wilson, DW, ...)
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typedef typename FermionAction::FermionField FermionField;
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//::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
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HMCWrapper TheHMC;
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// Grid from the command line
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TheHMC.Resources.AddFourDimGrid("gauge");
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// Possibile to create the module by hand
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// hardcoding parameters or using a Reader
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// Checkpointer definition
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CheckpointerParameters CPparams;
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CPparams.config_prefix = "ckpoint_lat";
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CPparams.rng_prefix = "ckpoint_rng";
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CPparams.saveInterval = 5;
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CPparams.format = "IEEE64BIG";
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TheHMC.Resources.LoadBinaryCheckpointer(CPparams);
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RNGModuleParameters RNGpar;
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RNGpar.SerialSeed = {1,2,3,4,5};
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RNGpar.ParallelSeed = {6,7,8,9,10};
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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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PlaquetteObsParameters PlPar;
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PlPar.output_prefix = "Plaquette";
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PlaquetteMod<HMCWrapper::ImplPolicy> PlaqModule(PlPar);
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TheHMC.Resources.AddObservable(&PlaqModule);
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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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RealD beta = 2.25 ;
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WilsonGaugeActionR Waction(beta);
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auto GridPtr = TheHMC.Resources.GetCartesian();
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auto GridRBPtr = TheHMC.Resources.GetRBCartesian();
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// temporarily need a gauge field
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AdjointRepresentation::LatticeField U(GridPtr);
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Real mass = -0.95;
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// Can we define an overloaded operator that does not need U and initialises
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// it with zeroes?
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FermionAction FermOp(U, *GridPtr, *GridRBPtr, mass);
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ConjugateGradient<FermionField> CG(1.0e-8, 2000, false);
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TwoFlavourPseudoFermionAction<FermionImplPolicy> Nf2(FermOp, CG, CG);
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// Set smearing (true/false), default: false
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Nf2.is_smeared = false;
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// Collect actions
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ActionLevel<LatticeGaugeField, TheRepresentations > Level1(1);
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Level1.push_back(&Nf2);
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ActionLevel<LatticeGaugeField, TheRepresentations > Level2(4);
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Level2.push_back(&Waction);
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TheHMC.TheAction.push_back(Level1);
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TheHMC.TheAction.push_back(Level2);
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// HMC parameters are serialisable
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TheHMC.Parameters.MD.MDsteps = 20;
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TheHMC.Parameters.MD.trajL = 1.0;
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TheHMC.ReadCommandLine(argc, argv); // these can be parameters from file
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TheHMC.Run(); // no smearing
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// TheHMC.Run(SmearingPolicy); // for smearing
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Grid_finalize();
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} // main
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