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Two flavour HMC for Wilson/Wilson is conserving energy.

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Still to check plaq and <e(-dH)>, but nevertheless this is
progress
This commit is contained in:
Peter Boyle
2015-07-29 17:53:39 +09:00
parent 4cc2ef84d3
commit 4fe110bd07
20 changed files with 259 additions and 76 deletions
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55
tests/Test_hmc_WilsonFermionGauge.cc Normal file
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#include "Grid.h"
using namespace std;
using namespace Grid;
using namespace Grid::QCD;
int main (int argc, char ** argv)
{
Grid_init(&argc,&argv);
std::vector<int> latt_size = GridDefaultLatt();
std::vector<int> simd_layout = GridDefaultSimd(4,vComplex::Nsimd());
std::vector<int> mpi_layout = GridDefaultMpi();
GridCartesian Fine(latt_size,simd_layout,mpi_layout);
GridRedBlackCartesian RBFine(latt_size,simd_layout,mpi_layout);
GridParallelRNG pRNG(&Fine);
pRNG.SeedRandomDevice();
LatticeLorentzColourMatrix U(&Fine);
SU3::HotConfiguration(pRNG, U);
// simplify template declaration? Strip the lorentz from the second template
WilsonGaugeAction<LatticeLorentzColourMatrix, LatticeColourMatrix> Waction(5.6);
Real mass=0.01;
WilsonFermion FermOp(U,Fine,RBFine,mass);
ConjugateGradient<LatticeFermion> CG(1.0e-8,10000);
TwoFlavourPseudoFermionAction<LatticeLorentzColourMatrix, LatticeColourMatrix,LatticeFermion>
Pseudofermion(FermOp,CG,CG,Fine);
//Collect actions
ActionLevel Level1;
Level1.push_back(&Waction);
Level1.push_back(&Pseudofermion);
ActionSet FullSet;
FullSet.push_back(Level1);
// Create integrator
typedef LeapFrog IntegratorAlgorithm;// change here to change the algorithm
IntegratorParameters MDpar(12,40,1.0);
std::vector<int> rel ={1};
Integrator<IntegratorAlgorithm> MDynamics(&Fine,MDpar, FullSet,rel);
// Create HMC
HMCparameters HMCpar;
HybridMonteCarlo<IntegratorAlgorithm> HMC(HMCpar, MDynamics);
HMC.evolve(U);
}