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https://github.com/paboyle/Grid.git
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153 lines
4.9 KiB
C++
153 lines
4.9 KiB
C++
/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: ./tests/Test_hmc_EODWFRatio.cc
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Copyright (C) 2015-2016
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Author: Peter Boyle <pabobyle@ph.ed.ac.uk>
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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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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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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<MinimumNorm2> HMCWrapper; // Uses the default minimum norm
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typedef WilsonImplR FermionImplPolicy;
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typedef DomainWallFermionR FermionAction;
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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_EODWF_lat";
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CPparams.rng_prefix = "ckpoint_EODWF_rng";
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CPparams.saveInterval = 5;
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CPparams.format = "IEEE64BIG";
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TheHMC.Resources.LoadNerscCheckpointer(CPparams);
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RNGModuleParameters RNGpar;
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RNGpar.serial_seeds = "1 2 3 4 5";
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RNGpar.parallel_seeds = "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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typedef PlaquetteMod<HMCWrapper::ImplPolicy> PlaqObs;
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TheHMC.Resources.AddObservable<PlaqObs>();
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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 = 5.6 ;
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WilsonGaugeActionR Waction(beta);
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const int Ls = 8;
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auto GridPtr = TheHMC.Resources.GetCartesian();
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auto GridRBPtr = TheHMC.Resources.GetRBCartesian();
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auto FGrid = SpaceTimeGrid::makeFiveDimGrid(Ls,GridPtr);
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auto FrbGrid = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,GridPtr);
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// temporarily need a gauge field
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LatticeGaugeField U(GridPtr);
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Real mass = 0.04;
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Real pv = 1.0;
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RealD M5 = 1.5;
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FermionAction DenOp(U,*FGrid,*FrbGrid,*GridPtr,*GridRBPtr,mass,M5);
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FermionAction NumOp(U,*FGrid,*FrbGrid,*GridPtr,*GridRBPtr,pv, M5);
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double StoppingCondition = 1.0e-8;
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double MaxCGIterations = 10000;
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ConjugateGradient<FermionField> CG(StoppingCondition,MaxCGIterations);
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TwoFlavourEvenOddRatioPseudoFermionAction<FermionImplPolicy> Nf2(NumOp, DenOp,CG,CG);
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// Set smearing (true/false), default: false
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Nf2.is_smeared = true;
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// Collect actions
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ActionLevel<HMCWrapper::Field> Level1(1);
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Level1.push_back(&Nf2);
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ActionLevel<HMCWrapper::Field> 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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/////////////////////////////////////////////////////////////
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/*
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double rho = 0.1; // smearing parameter
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int Nsmear = 2; // number of smearing levels
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Smear_Stout<HMCWrapper::ImplPolicy> Stout(rho);
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SmearedConfiguration<HMCWrapper::ImplPolicy> SmearingPolicy(
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UGrid, Nsmear, Stout);
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*/
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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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// Reset performance counters
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NumOp.ZeroCounters();
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DenOp.ZeroCounters();
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TheHMC.Run(); // no smearing
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// TheHMC.Run(SmearingPolicy); // for smearing
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std::cout << GridLogMessage << "Numerator report, Pauli-Villars term : " << std::endl;
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NumOp.Report();
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std::cout << GridLogMessage << "Denominator report, Dw(m) term (includes CG) : " << std::endl;
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DenOp.Report();
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Grid_finalize();
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} // main
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