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Grid/HMC/Mobius2p1f_EOFA_96I_hmc_double.cc
Peter Boyle 07e4900218 FTHMC commit
2023-10-13 18:21:57 +03:00

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/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: ./tests/Test_hmc_EODWFRatio.cc
Copyright (C) 2015-2016
Author: Peter Boyle <pabobyle@ph.ed.ac.uk>
Author: Guido Cossu <guido.cossu@ed.ac.uk>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
See the full license in the file "LICENSE" in the top level distribution
directory
*************************************************************************************/
/* END LEGAL */
#include <Grid/Grid.h>
int main(int argc, char **argv) {
using namespace Grid;
std::cout << " Grid Initialise "<<std::endl;
Grid_init(&argc, &argv);
CartesianCommunicator::BarrierWorld();
std::cout << GridLogMessage << " Clock skew check" <<std::endl;
int threads = GridThread::GetThreads();
// Typedefs to simplify notation
typedef WilsonImplD FermionImplPolicy;
typedef MobiusFermionD FermionAction;
typedef MobiusEOFAFermionD FermionEOFAAction;
typedef typename FermionAction::FermionField FermionField;
typedef WilsonImplF FermionImplPolicyF;
typedef MobiusFermionF FermionActionF;
typedef MobiusEOFAFermionF FermionEOFAActionF;
typedef typename FermionActionF::FermionField FermionFieldF;
typedef Grid::XmlReader Serialiser;
//::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
IntegratorParameters MD;
// typedef GenericHMCRunner<LeapFrog> HMCWrapper;
// MD.name = std::string("Leap Frog");
typedef GenericHMCRunner<ForceGradient> HMCWrapper;
MD.name = std::string("Force Gradient");
// typedef GenericHMCRunner<MinimumNorm2> HMCWrapper;
// MD.name = std::string("MinimumNorm2");
// TrajL = 2
// 4/2 => 0.6 dH
// 3/3 => 0.8 dH .. depth 3, slower
//MD.MDsteps = 4;
MD.MDsteps = 8;
MD.trajL = 0.5;
HMCparameters HMCparams;
HMCparams.StartTrajectory = 1077;
HMCparams.Trajectories = 20;
HMCparams.NoMetropolisUntil= 0;
// "[HotStart, ColdStart, TepidStart, CheckpointStart]\n";
HMCparams.StartingType =std::string("ColdStart");
// HMCparams.StartingType =std::string("CheckpointStart");
HMCparams.MD = MD;
HMCWrapper TheHMC(HMCparams);
// Grid from the command line arguments --grid and --mpi
TheHMC.Resources.AddFourDimGrid("gauge"); // use default simd lanes decomposition
CheckpointerParameters CPparams;
CPparams.config_prefix = "ckpoint_HMC_lat";
CPparams.rng_prefix = "ckpoint_HMC_rng";
CPparams.saveInterval = 1;
CPparams.format = "IEEE64BIG";
TheHMC.Resources.LoadNerscCheckpointer(CPparams);
std::cout << "loaded NERSC checpointer"<<std::endl;
RNGModuleParameters RNGpar;
RNGpar.serial_seeds = "1 2 3 4 5 6 7 8 9 10";
RNGpar.parallel_seeds = "6 7 8 9 10";
TheHMC.Resources.SetRNGSeeds(RNGpar);
// Construct observables
// here there is too much indirection
typedef PlaquetteMod<HMCWrapper::ImplPolicy> PlaqObs;
TheHMC.Resources.AddObservable<PlaqObs>();
//////////////////////////////////////////////
const int Ls = 12;
RealD M5 = 1.8;
RealD b = 1.5;
RealD c = 0.5;
RealD beta = 2.13;
// Real light_mass = 5.4e-4;
Real light_mass = 7.8e-4;
// Real light_mass = 7.8e-3;
Real strange_mass = 0.0362;
Real pv_mass = 1.0;
std::vector<Real> hasenbusch({ 0.005, 0.0145, 0.045, 0.108, 0.25, 0.35 , 0.51, 0.6, 0.8 }); // Updated
//std::vector<Real> hasenbusch({ 0.0145, 0.045, 0.108, 0.25, 0.35 , 0.51, 0.6, 0.8 }); // Updated
auto GridPtr = TheHMC.Resources.GetCartesian();
auto GridRBPtr = TheHMC.Resources.GetRBCartesian();
typedef SchurDiagMooeeOperator<FermionAction ,FermionField > LinearOperatorD;
typedef SchurDiagMooeeOperator<FermionEOFAAction ,FermionField > LinearOperatorEOFAD;
////////////////////////////////////////////////////////////////
// Domain decomposed
////////////////////////////////////////////////////////////////
Coordinate latt4 = GridPtr->GlobalDimensions();
Coordinate mpi = GridPtr->ProcessorGrid();
Coordinate shm;
GlobalSharedMemory::GetShmDims(mpi,shm);
//////////////////////////
// Fermion Grids
//////////////////////////
auto FGrid = SpaceTimeGrid::makeFiveDimGrid(Ls,GridPtr);
auto FrbGrid = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,GridPtr);
IwasakiGaugeActionR GaugeAction(beta);
// temporarily need a gauge field
LatticeGaugeFieldD U(GridPtr); U=Zero();
std::cout << GridLogMessage << " Running the HMC "<< std::endl;
TheHMC.ReadCommandLine(argc,argv); // params on CML or from param file
TheHMC.initializeGaugeFieldAndRNGs(U);
std::cout << "loaded NERSC gauge field"<<std::endl;
// These lines are unecessary if BC are all periodic
std::vector<Complex> boundary = {1,1,1,-1};
FermionAction::ImplParams Params(boundary);
// double StoppingCondition = 1e-14;
// double MDStoppingCondition = 1e-9;
double StoppingCondition = 1e-14;
double MDStoppingCondition = 1e-9;
double MDStoppingConditionLoose = 1e-9;
double MDStoppingConditionStrange = 1e-9;
double MaxCGIterations = 50000;
ConjugateGradient<FermionField> CG(StoppingCondition,MaxCGIterations);
ConjugateGradient<FermionField> MDCG(MDStoppingCondition,MaxCGIterations);
////////////////////////////////////
// Collect actions
////////////////////////////////////
ActionLevel<HMCWrapper::Field> Level1(1);
ActionLevel<HMCWrapper::Field> Level2(2);
ActionLevel<HMCWrapper::Field> Level3(4);
////////////////////////////////////
// Strange action
////////////////////////////////////
FermionAction StrangeOp (U,*FGrid,*FrbGrid,*GridPtr,*GridRBPtr,strange_mass,M5,b,c, Params);
FermionAction StrangePauliVillarsOp(U,*FGrid,*FrbGrid,*GridPtr,*GridRBPtr,pv_mass, M5,b,c, Params);
// Probably dominates the force - back to EOFA.
OneFlavourRationalParams SFRp;
SFRp.lo = 0.8;
SFRp.hi = 30.0;
SFRp.MaxIter = 10000;
SFRp.tolerance= 1.0e-12;
SFRp.mdtolerance= 1.0e-9;
SFRp.degree = 10;
SFRp.precision= 50;
MobiusEOFAFermionD Strange_Op_L (U , *FGrid , *FrbGrid , *GridPtr , *GridRBPtr , strange_mass, strange_mass, pv_mass, 0.0, -1, M5, b, c);
MobiusEOFAFermionD Strange_Op_R (U , *FGrid , *FrbGrid , *GridPtr , *GridRBPtr , pv_mass, strange_mass, pv_mass, -1.0, 1, M5, b, c);
ConjugateGradient<FermionField> ActionCG(StoppingCondition,MaxCGIterations);
ConjugateGradient<FermionField> DerivativeCG(MDStoppingCondition,MaxCGIterations);
LinearOperatorEOFAD Strange_LinOp_L (Strange_Op_L);
LinearOperatorEOFAD Strange_LinOp_R (Strange_Op_R);
ExactOneFlavourRatioPseudoFermionAction<FermionImplPolicy>
EOFA(Strange_Op_L, Strange_Op_R,
ActionCG,
ActionCG, ActionCG,
DerivativeCG, DerivativeCG,
SFRp, true);
Level2.push_back(&EOFA);
////////////////////////////////////
// up down action
////////////////////////////////////
std::vector<Real> light_den;
std::vector<Real> light_num;
int n_hasenbusch = hasenbusch.size();
light_den.push_back(light_mass);
for(int h=0;h<n_hasenbusch;h++){
light_den.push_back(hasenbusch[h]);
}
for(int h=0;h<n_hasenbusch;h++){
light_num.push_back(hasenbusch[h]);
}
light_num.push_back(pv_mass);
std::vector<FermionAction *> Numerators;
std::vector<FermionAction *> Denominators;
std::vector<TwoFlavourEvenOddRatioPseudoFermionAction<FermionImplPolicy> *> Quotients;
std::vector<OneFlavourEvenOddRatioRationalPseudoFermionAction<FermionImplPolicy> *> Bdys;
typedef SchurDiagMooeeOperator<FermionAction ,FermionField > LinearOperatorD;
std::vector<LinearOperatorD *> LinOpD;
for(int h=0;h<n_hasenbusch+1;h++){
std::cout << GridLogMessage
<< " 2f quotient Action ";
std::cout << "det D("<<light_den[h]<<")";
std::cout << "/ det D("<<light_num[h]<<")";
std::cout << std::endl;
FermionAction::ImplParams ParamsNum(boundary);
FermionAction::ImplParams ParamsDen(boundary);
Numerators.push_back (new FermionAction(U,*FGrid,*FrbGrid,*GridPtr,*GridRBPtr,light_num[h],M5,b,c, ParamsNum));
Denominators.push_back(new FermionAction(U,*FGrid,*FrbGrid,*GridPtr,*GridRBPtr,light_den[h],M5,b,c, ParamsDen));
LinOpD.push_back(new LinearOperatorD(*Denominators[h]));
double conv = MDStoppingCondition;
if (h<3) conv= MDStoppingConditionLoose; // Relax on first two hasenbusch factors
Quotients.push_back (new TwoFlavourEvenOddRatioPseudoFermionAction<FermionImplPolicy>(*Numerators[h],*Denominators[h],MDCG,CG,CG));
}
int nquo=Quotients.size();
for(int h=0;h<nquo;h++){
Level1.push_back(Quotients[h]);
}
/////////////////////////////////////////////////////////////
// Gauge action
/////////////////////////////////////////////////////////////
Level3.push_back(&GaugeAction);
TheHMC.TheAction.push_back(Level1);
TheHMC.TheAction.push_back(Level2);
TheHMC.TheAction.push_back(Level3);
std::cout << GridLogMessage << " Action complete "<< std::endl;
/////////////////////////////////////////////////////////////
TheHMC.Run(); // no smearing
Grid_finalize();
} // main
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