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first hmc

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This commit is contained in:
Alessandro Lupo 2021-10-12 12:16:47 +01:00
parent 8c0fbcccae
commit ed03bfd555
1 changed files with 78 additions and 0 deletions
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tests/sp2n/Test_hmc_Sp_WilsonFundFermionGauge.cc Normal file
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#include <Grid/Grid.h>
int main(int argc, char **argv) {
using namespace Grid;
typedef Representations< SpFundamentalRepresentation > TheRepresentations;
Grid_init(&argc, &argv);
typedef GenericSp2nHMCRunnerHirep<TheRepresentations, MinimumNorm2> HMCWrapper; // ok
typedef SpWilsonImplR FermionImplPolicy; // ok
typedef SpWilsonFermionR FermionAction; // ok
typedef typename FermionAction::FermionField FermionField; // ok?
//::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
HMCWrapper TheHMC;
TheHMC.Resources.AddFourDimGrid("gauge");
// Checkpointer definition
CheckpointerParameters CPparams;
CPparams.config_prefix = "ckpoint_lat";
CPparams.rng_prefix = "ckpoint_rng";
CPparams.saveInterval = 5;
CPparams.format = "IEEE64BIG";
TheHMC.Resources.LoadNerscCheckpointer(CPparams);
RNGModuleParameters RNGpar;
RNGpar.serial_seeds = "1 2 3 4 5";
RNGpar.parallel_seeds = "6 7 8 9 10";
TheHMC.Resources.SetRNGSeeds(RNGpar);
// Construct observables
typedef PlaquetteMod<HMCWrapper::ImplPolicy> PlaqObs;
TheHMC.Resources.AddObservable<PlaqObs>();
RealD beta = 2.25 ;
SymplWilsonGaugeActionR Waction(beta);
auto GridPtr = TheHMC.Resources.GetCartesian();
auto GridRBPtr = TheHMC.Resources.GetRBCartesian();
SpFundamentalRepresentation::LatticeField U(GridPtr);
//LatticeGaugeField U(GridPtr);
RealD mass = -0.95;
FermionAction FermOp(U, *GridPtr, *GridRBPtr, mass);
ConjugateGradient<FermionField> CG(1.0e-8, 2000, false);
TwoFlavourPseudoFermionAction<FermionImplPolicy> Nf2(FermOp, CG, CG);
Nf2.is_smeared = false;
ActionLevel<HMCWrapper::Field, TheRepresentations > Level1(1);
Level1.push_back(&Nf2);
ActionLevel<HMCWrapper::Field, TheRepresentations > Level2(4);
Level2.push_back(&Waction);
TheHMC.TheAction.push_back(Level1);
TheHMC.TheAction.push_back(Level2);
TheHMC.Parameters.MD.MDsteps = 20;
TheHMC.Parameters.MD.trajL = 1.0;
TheHMC.ReadCommandLine(argc, argv);
TheHMC.Run();
Grid_finalize();
}