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Default to mixed precision now
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/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file:
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Copyright (C) 2015-2016
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Author: Peter Boyle <pabobyle@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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#include <Grid/qcd/action/momentum/DirichletFilter.h>
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#include <Grid/qcd/action/momentum/DDHMCfilter.h>
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#include <Grid/qcd/action/fermion/DirichletFermionOperator.h>
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#include <Grid/qcd/action/fermion/SchurFactoredFermionOperator.h>
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#include <Grid/qcd/action/pseudofermion/DomainDecomposedBoundaryTwoFlavourPseudoFermion.h>
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#include <Grid/qcd/action/pseudofermion/DomainDecomposedBoundaryTwoFlavourRatioPseudoFermion.h>
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#include <Grid/qcd/action/pseudofermion/DomainDecomposedBoundaryTwoFlavourBosonPseudoFermion.h>
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#include <Grid/qcd/utils/MixedPrecisionOperatorFunction.h>
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NAMESPACE_BEGIN(Grid);
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#define MIXED_PRECISION
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NAMESPACE_END(Grid);
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int main(int argc, char **argv)
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{
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using namespace Grid;
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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 WilsonImplR FimplD;
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typedef WilsonImplF FimplF;
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typedef FermionOperator<FimplF> FermionOperatorF;
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typedef FermionOperator<FimplD> FermionOperatorD;
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typedef MobiusFermionR FermionActionD;
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typedef MobiusFermionF FermionActionF;
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typedef DirichletFermionOperator<WilsonImplR> DirichletFermionD;
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typedef DirichletFermionOperator<WilsonImplF> DirichletFermionF;
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typedef MobiusEOFAFermionR FermionEOFAAction;
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typedef typename FermionActionD::FermionField FermionFieldD;
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typedef typename FermionActionF::FermionField FermionFieldF;
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typedef SchurDiagMooeeOperator<FermionOperator<FimplF>,FermionFieldF> LinearOperatorF;
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typedef SchurDiagMooeeOperator<FermionOperator<FimplD>,FermionFieldD> LinearOperatorD;
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typedef SchurDiagMooeeDagOperator<FermionOperator<FimplF>,FermionFieldF> LinearOperatorDagF;
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typedef SchurDiagMooeeDagOperator<FermionOperator<FimplD>,FermionFieldD> LinearOperatorDagD;
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typedef Grid::XmlReader Serialiser;
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//::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
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IntegratorParameters MD;
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// typedef GenericHMCRunner<LeapFrog> HMCWrapper;
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// MD.name = std::string("Leap Frog");
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// typedef GenericHMCRunner<ForceGradient> HMCWrapper;
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// MD.name = std::string("Force Gradient");
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typedef GenericHMCRunner<MinimumNorm2> HMCWrapper;
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MD.name = std::string("MinimumNorm2");
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MD.MDsteps = 6;
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MD.trajL = 1.0;
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HMCparameters HMCparams;
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HMCparams.StartTrajectory = 26;
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HMCparams.Trajectories = 1;
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HMCparams.NoMetropolisUntil= 0;
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// "[HotStart, ColdStart, TepidStart, CheckpointStart]\n";
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// HMCparams.StartingType =std::string("ColdStart");
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HMCparams.StartingType =std::string("CheckpointStart");
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HMCparams.MD = MD;
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HMCWrapper TheHMC(HMCparams);
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// Grid from the command line arguments --grid and --mpi
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TheHMC.Resources.AddFourDimGrid("gauge"); // use default simd lanes decomposition
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CheckpointerParameters CPparams;
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CPparams.config_prefix = "ckpoint_EOFA4D_lat";
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CPparams.rng_prefix = "ckpoint_EOFA4D_rng";
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CPparams.saveInterval = 1;
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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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// Momentum Dirichlet
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Coordinate Block({0,0,0,16}); // Temporal only decomposition
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TheHMC.Resources.SetMomentumFilter(new DDHMCFilter<WilsonImplR::Field>(Block));
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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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const int Ls = 16;
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Real beta = 2.13;
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Real light_mass = 0.01;
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Real pv_mass = 1.0;
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RealD M5 = 1.8;
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RealD b = 1.0;
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RealD c = 0.0;
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std::vector<Real> hasenbusch({ 0.15, 0.4, 0.7 });
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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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Coordinate latt = GridDefaultLatt();
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Coordinate mpi = GridDefaultMpi();
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Coordinate simdF = GridDefaultSimd(Nd,vComplexF::Nsimd());
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Coordinate simdD = GridDefaultSimd(Nd,vComplexD::Nsimd());
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auto GridPtrF = SpaceTimeGrid::makeFourDimGrid(latt,simdF,mpi);
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auto GridRBPtrF = SpaceTimeGrid::makeFourDimRedBlackGrid(GridPtrF);
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auto FGridF = SpaceTimeGrid::makeFiveDimGrid(Ls,GridPtrF);
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auto FrbGridF = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,GridPtrF);
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IwasakiGaugeActionR GaugeAction(beta);
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// temporarily need a gauge field
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LatticeGaugeField U(GridPtr);
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LatticeGaugeFieldF UF(GridPtrF);
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// These lines are unecessary if BC are all periodic
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std::vector<Complex> boundary = {1,1,1,-1};
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FermionActionD::ImplParams Params(boundary);
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FermionActionD::ImplParams DirichletParams(boundary);
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DirichletParams.locally_periodic=true;
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double ActionStoppingCondition = 1e-10;
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double DerivativeStoppingCondition = 1e-8;
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double BoundaryDerivativeStoppingCondition = 1e-6;
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double MaxCGIterations = 30000;
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////////////////////////////////////
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// Collect actions
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////////////////////////////////////
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ActionLevel<HMCWrapper::Field> Level1(1);
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ActionLevel<HMCWrapper::Field> Level2(1);
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ActionLevel<HMCWrapper::Field> Level3(8);
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ConjugateGradient<FermionFieldD> ActionCG(ActionStoppingCondition,MaxCGIterations);
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ConjugateGradient<FermionFieldD> DerivativeCG(DerivativeStoppingCondition,MaxCGIterations);
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////////////////////////////////////
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// up down action
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////////////////////////////////////
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std::vector<Real> light_den;
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std::vector<Real> light_num;
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int n_hasenbusch = hasenbusch.size();
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light_den.push_back(light_mass);
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for(int h=0;h<n_hasenbusch;h++){
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light_den.push_back(hasenbusch[h]);
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light_num.push_back(hasenbusch[h]);
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}
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light_num.push_back(pv_mass);
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//////////////////////////////////////////////////////////////
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// Forced to replicate the MxPCG and DenominatorsF etc.. because
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// there is no convenient way to "Clone" physics params from double op
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// into single op for any operator pair.
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// Same issue prevents using MxPCG in the Heatbath step
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//////////////////////////////////////////////////////////////
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/////////////////////////////////////////////////
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// These are consumed/owned by the Dirichlet wrappers
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/////////////////////////////////////////////////
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std::vector<FermionActionD *> DNumeratorsD;
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std::vector<FermionActionF *> DNumeratorsF;
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std::vector<FermionActionD *> DDenominatorsD;
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std::vector<FermionActionF *> DDenominatorsF;
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/////////////////////////////////////////////////
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// Dirichlet wrappers
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/////////////////////////////////////////////////
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std::vector<DirichletFermionD *> DirichletNumeratorsD;
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std::vector<DirichletFermionF *> DirichletNumeratorsF;
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std::vector<DirichletFermionD *> DirichletDenominatorsD;
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std::vector<DirichletFermionF *> DirichletDenominatorsF;
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std::vector<TwoFlavourEvenOddRatioPseudoFermionAction<FimplD> *> Quotients;
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std::vector<DomainDecomposedBoundaryTwoFlavourRatioPseudoFermion<FimplD,FimplF> *> BoundaryQuotients;
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typedef MixedPrecisionConjugateGradientOperatorFunction<FermionOperatorD,
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FermionOperatorF,
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LinearOperatorD,
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LinearOperatorF> MxPCG;
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std::vector<MxPCG *> ActionMPCG;
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std::vector<MxPCG *> MPCG;
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std::vector<LinearOperatorD *> LinOpD;
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std::vector<LinearOperatorF *> LinOpF;
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const int MX_inner = 1000;
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const RealD MX_tol = 1.0e-6;
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for(int h=0;h<n_hasenbusch+1;h++){
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std::cout << GridLogMessage << " 2f quotient Action "<< light_num[h] << " / " << light_den[h]<< std::endl;
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DNumeratorsD.push_back (new FermionActionD(U,*FGrid,*FrbGrid,*GridPtr,*GridRBPtr,light_num[h],M5,b,c, DirichletParams));
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DNumeratorsF.push_back (new FermionActionF(UF,*FGridF,*FrbGridF,*GridPtrF,*GridRBPtrF,light_num[h],M5,b,c, DirichletParams));
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DDenominatorsD.push_back(new FermionActionD(U,*FGrid,*FrbGrid,*GridPtr,*GridRBPtr,light_den[h],M5,b,c, DirichletParams));
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DDenominatorsF.push_back(new FermionActionF(UF,*FGridF,*FrbGridF,*GridPtrF,*GridRBPtrF,light_den[h],M5,b,c, DirichletParams));
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DirichletNumeratorsD.push_back (new DirichletFermionD(*DNumeratorsD[h],Block));
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DirichletNumeratorsF.push_back (new DirichletFermionF(*DNumeratorsF[h],Block));
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DirichletDenominatorsD.push_back(new DirichletFermionD(*DDenominatorsD[h],Block));
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DirichletDenominatorsF.push_back(new DirichletFermionF(*DDenominatorsF[h],Block));
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// Dirichlet Schur even odd MpsDagMpc operators on local domains
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LinOpD.push_back(new LinearOperatorD(*DirichletDenominatorsD[h]));
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LinOpF.push_back(new LinearOperatorF(*DirichletDenominatorsF[h]));
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// Derivative
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MPCG.push_back(new MxPCG(DerivativeStoppingCondition, MX_tol,
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MX_inner,
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MaxCGIterations,
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FrbGridF,
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*DirichletDenominatorsF[h],*DirichletDenominatorsD[h],
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*LinOpF[h], *LinOpD[h]) );
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// Action
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ActionMPCG.push_back(new MxPCG(ActionStoppingCondition, MX_tol,
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MX_inner,
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MaxCGIterations,
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FrbGridF,
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*DirichletDenominatorsF[h],*DirichletDenominatorsD[h],
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*LinOpF[h], *LinOpD[h]) );
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////////////////////////////////////////////////////////////////////////////
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// Standard CG for 2f force
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////////////////////////////////////////////////////////////////////////////
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Quotients.push_back (new
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TwoFlavourEvenOddRatioPseudoFermionAction<FimplD>
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(*DirichletNumeratorsD[h],
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*DirichletDenominatorsD[h],
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*ActionMPCG[h],
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*ActionMPCG[h],
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ActionCG));
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Level2.push_back(Quotients[h]);
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}
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/////////////////////////////////////////////////////////////
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// Boundary action
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/////////////////////////////////////////////////////////////
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int l_idx = 0;
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int pv_idx = n_hasenbusch;
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std::cout << GridLogMessage<<" Boundary action masses " <<light_num[l_idx]<<" / "<<light_den[pv_idx]<<std::endl;
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FermionActionD PeriNumeratorD (U,*FGrid,*FrbGrid,*GridPtr,*GridRBPtr,light_num[pv_idx],M5,b,c, Params);
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FermionActionD PeriDenominatorD(U,*FGrid,*FrbGrid,*GridPtr,*GridRBPtr,light_den[l_idx] ,M5,b,c, Params);
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FermionActionF PeriNumeratorF (UF,*FGridF,*FrbGridF,*GridPtrF,*GridRBPtrF,light_num[pv_idx],M5,b,c, Params);
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FermionActionF PeriDenominatorF(UF,*FGridF,*FrbGridF,*GridPtrF,*GridRBPtrF,light_den[l_idx] ,M5,b,c, Params);
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DirichletFermionD & DirichletNumeratorD = *DirichletNumeratorsD[pv_idx];
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DirichletFermionF & DirichletNumeratorF = *DirichletNumeratorsF[pv_idx];
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DirichletFermionD & DirichletDenominatorD= *DirichletDenominatorsD[l_idx];
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DirichletFermionF & DirichletDenominatorF= *DirichletDenominatorsF[l_idx];
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SchurFactoredFermionOperator<FimplD,FimplF> BoundaryNumerator(PeriNumeratorD,PeriNumeratorF,
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DirichletNumeratorD,DirichletNumeratorF,
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Block);
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SchurFactoredFermionOperator<FimplD,FimplF> BoundaryDenominator(PeriDenominatorD,PeriDenominatorF,
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DirichletDenominatorD,DirichletDenominatorF,
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Block);
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Level1.push_back(new
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DomainDecomposedBoundaryTwoFlavourRatioPseudoFermion<FimplD,FimplF>
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(BoundaryNumerator,
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BoundaryDenominator,
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BoundaryDerivativeStoppingCondition,ActionStoppingCondition,MX_tol));
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/////////////////////////////////////////////////////////////
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// Gauge action
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/////////////////////////////////////////////////////////////
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Level3.push_back(&GaugeAction);
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TheHMC.TheAction.push_back(Level1);
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TheHMC.TheAction.push_back(Level2);
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TheHMC.TheAction.push_back(Level3);
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std::cout << GridLogMessage << " Action complete "<< std::endl;
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/////////////////////////////////////////////////////////////
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// HMC parameters are serialisable
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std::cout << GridLogMessage << " Running the HMC "<< std::endl;
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TheHMC.Run(); // no smearing
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Grid_finalize();
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} // main
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