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Grid/HMC/Mobius2p1f_DD_RHMC_96I_mixed.cc
Peter Boyle af9ecb8b41 Current tests compiling
2022-09-27 10:56:55 -04:00

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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>
NAMESPACE_BEGIN(Grid);
template<class FermionOperatorD, class FermionOperatorF, class SchurOperatorD, class SchurOperatorF>
class MixedPrecisionConjugateGradientOperatorFunction : public OperatorFunction<typename FermionOperatorD::FermionField> {
public:
typedef typename FermionOperatorD::FermionField FieldD;
typedef typename FermionOperatorF::FermionField FieldF;
using OperatorFunction<FieldD>::operator();
RealD Tolerance;
RealD InnerTolerance; //Initial tolerance for inner CG. Defaults to Tolerance but can be changed
Integer MaxInnerIterations;
Integer MaxOuterIterations;
GridBase* SinglePrecGrid4; //Grid for single-precision fields
GridBase* SinglePrecGrid5; //Grid for single-precision fields
RealD OuterLoopNormMult; //Stop the outer loop and move to a final double prec solve when the residual is OuterLoopNormMult * Tolerance
FermionOperatorF &FermOpF;
FermionOperatorD &FermOpD;;
SchurOperatorF &LinOpF;
SchurOperatorD &LinOpD;
Integer TotalInnerIterations; //Number of inner CG iterations
Integer TotalOuterIterations; //Number of restarts
Integer TotalFinalStepIterations; //Number of CG iterations in final patch-up step
MixedPrecisionConjugateGradientOperatorFunction(RealD tol,
Integer maxinnerit,
Integer maxouterit,
GridBase* _sp_grid4,
GridBase* _sp_grid5,
FermionOperatorF &_FermOpF,
FermionOperatorD &_FermOpD,
SchurOperatorF &_LinOpF,
SchurOperatorD &_LinOpD):
LinOpF(_LinOpF),
LinOpD(_LinOpD),
FermOpF(_FermOpF),
FermOpD(_FermOpD),
Tolerance(tol),
InnerTolerance(tol),
MaxInnerIterations(maxinnerit),
MaxOuterIterations(maxouterit),
SinglePrecGrid4(_sp_grid4),
SinglePrecGrid5(_sp_grid5),
OuterLoopNormMult(100.)
{
/* Debugging instances of objects; references are stored
std::cout << GridLogMessage << " Mixed precision CG wrapper LinOpF " <<std::hex<< &LinOpF<<std::dec <<std::endl;
std::cout << GridLogMessage << " Mixed precision CG wrapper LinOpD " <<std::hex<< &LinOpD<<std::dec <<std::endl;
std::cout << GridLogMessage << " Mixed precision CG wrapper FermOpF " <<std::hex<< &FermOpF<<std::dec <<std::endl;
std::cout << GridLogMessage << " Mixed precision CG wrapper FermOpD " <<std::hex<< &FermOpD<<std::dec <<std::endl;
*/
};
void operator()(LinearOperatorBase<FieldD> &LinOpU, const FieldD &src, FieldD &psi) {
std::cout << GridLogMessage << " Mixed precision CG wrapper operator() "<<std::endl;
SchurOperatorD * SchurOpU = static_cast<SchurOperatorD *>(&LinOpU);
// std::cout << GridLogMessage << " Mixed precision CG wrapper operator() FermOpU " <<std::hex<< &(SchurOpU->_Mat)<<std::dec <<std::endl;
// std::cout << GridLogMessage << " Mixed precision CG wrapper operator() FermOpD " <<std::hex<< &(LinOpD._Mat) <<std::dec <<std::endl;
// Assumption made in code to extract gauge field
// We could avoid storing LinopD reference alltogether ?
assert(&(SchurOpU->_Mat)==&(LinOpD._Mat));
////////////////////////////////////////////////////////////////////////////////////
// Must snarf a single precision copy of the gauge field in Linop_d argument
////////////////////////////////////////////////////////////////////////////////////
typedef typename FermionOperatorF::GaugeField GaugeFieldF;
typedef typename FermionOperatorF::GaugeLinkField GaugeLinkFieldF;
typedef typename FermionOperatorD::GaugeField GaugeFieldD;
typedef typename FermionOperatorD::GaugeLinkField GaugeLinkFieldD;
GridBase * GridPtrF = SinglePrecGrid4;
GridBase * GridPtrD = FermOpD.Umu.Grid();
GaugeFieldF U_f (GridPtrF);
GaugeLinkFieldF Umu_f(GridPtrF);
// std::cout << " Dim gauge field "<<GridPtrF->Nd()<<std::endl; // 4d
// std::cout << " Dim gauge field "<<GridPtrD->Nd()<<std::endl; // 4d
////////////////////////////////////////////////////////////////////////////////////
// Moving this to a Clone method of fermion operator would allow to duplicate the
// physics parameters and decrease gauge field copies
////////////////////////////////////////////////////////////////////////////////////
GaugeLinkFieldD Umu_d(GridPtrD);
for(int mu=0;mu<Nd*2;mu++){
Umu_d = PeekIndex<LorentzIndex>(FermOpD.Umu, mu);
precisionChange(Umu_f,Umu_d);
PokeIndex<LorentzIndex>(FermOpF.Umu, Umu_f, mu);
}
pickCheckerboard(Even,FermOpF.UmuEven,FermOpF.Umu);
pickCheckerboard(Odd ,FermOpF.UmuOdd ,FermOpF.Umu);
////////////////////////////////////////////////////////////////////////////////////
// Make a mixed precision conjugate gradient
////////////////////////////////////////////////////////////////////////////////////
#if 1
RealD delta=1.e-4;
std::cout << GridLogMessage << "Calling reliable update Conjugate Gradient" <<std::endl;
ConjugateGradientReliableUpdate<FieldD,FieldF> MPCG(Tolerance,MaxInnerIterations*MaxOuterIterations,delta,SinglePrecGrid5,LinOpF,LinOpD);
#else
std::cout << GridLogMessage << "Calling mixed precision Conjugate Gradient" <<std::endl;
MixedPrecisionConjugateGradient<FieldD,FieldF> MPCG(Tolerance,MaxInnerIterations,MaxOuterIterations,SinglePrecGrid5,LinOpF,LinOpD);
#endif
MPCG(src,psi);
}
};
NAMESPACE_END(Grid);
int main(int argc, char **argv) {
using namespace Grid;
Grid_init(&argc, &argv);
CartesianCommunicator::BarrierWorld();
std::cout << GridLogMessage << " Clock skew check" <<std::endl;
int threads = GridThread::GetThreads();
// Typedefs to simplify notation
typedef WilsonImplR FermionImplPolicy;
typedef WilsonImplF FermionImplPolicyF;
typedef MobiusFermionD FermionAction;
typedef MobiusFermionF FermionActionF;
typedef typename FermionAction::FermionField FermionField;
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");
MD.MDsteps = 6;
MD.trajL = 1.0;
HMCparameters HMCparams;
HMCparams.StartTrajectory = 1077;
HMCparams.Trajectories = 1;
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_DDHMC_lat";
CPparams.rng_prefix = "ckpoint_DDHMC_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";
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;
Real beta = 2.31;
// Real light_mass = 5.4e-4;
Real light_mass = 7.8e-4;
Real strange_mass = 0.02132;
Real pv_mass = 1.0;
// std::vector<Real> hasenbusch({ light_mass, 3.8e-3, 0.0145, 0.045, 0.108, 0.25, 0.51 , pv_mass });
std::vector<Real> hasenbusch({ light_mass, 5e-3, 0.0145, 0.045, 0.108, 0.25, 0.51 , pv_mass });
// FIXME:
// Same in MC and MD
// Need to mix precision too
OneFlavourRationalParams SFRp; // Strange
SFRp.lo = 4.0e-3;
SFRp.hi = 90.0;
SFRp.MaxIter = 60000;
SFRp.tolerance= 1.0e-8;
SFRp.mdtolerance= 1.0e-3;
SFRp.degree = 12;
SFRp.precision= 50;
SFRp.BoundsCheckFreq=0;
OneFlavourRationalParams OFRp; // Up/down
OFRp.lo = 2.0e-5;
OFRp.hi = 90.0;
OFRp.MaxIter = 60000;
OFRp.tolerance= 1.0e-8;
OFRp.mdtolerance= 1.0e-3;
// OFRp.degree = 20; converges
// OFRp.degree = 16;
OFRp.degree = 12;
OFRp.precision= 80;
OFRp.BoundsCheckFreq=0;
auto GridPtr = TheHMC.Resources.GetCartesian();
auto GridRBPtr = TheHMC.Resources.GetRBCartesian();
typedef SchurDiagMooeeOperator<FermionActionF,FermionFieldF> LinearOperatorF;
typedef SchurDiagMooeeOperator<FermionAction ,FermionField > LinearOperatorD;
typedef MixedPrecisionConjugateGradientOperatorFunction<MobiusFermionD,MobiusFermionF,LinearOperatorD,LinearOperatorF> MxPCG;
////////////////////////////////////////////////////////////////
// Domain decomposed
////////////////////////////////////////////////////////////////
Coordinate latt4 = GridPtr->GlobalDimensions();
Coordinate mpi = GridPtr->ProcessorGrid();
Coordinate shm;
GlobalSharedMemory::GetShmDims(mpi,shm);
Coordinate CommDim(Nd);
for(int d=0;d<Nd;d++) CommDim[d]= (mpi[d]/shm[d])>1 ? 1 : 0;
Coordinate NonDirichlet(Nd+1,0);
Coordinate Dirichlet(Nd+1,0);
Dirichlet[1] = CommDim[0]*latt4[0]/mpi[0] * shm[0];
Dirichlet[2] = CommDim[1]*latt4[1]/mpi[1] * shm[1];
Dirichlet[3] = CommDim[2]*latt4[2]/mpi[2] * shm[2];
Dirichlet[4] = CommDim[3]*latt4[3]/mpi[3] * shm[3];
Coordinate Block4(Nd);
Block4[0] = Dirichlet[1];
Block4[1] = Dirichlet[2];
Block4[2] = Dirichlet[3];
Block4[3] = Dirichlet[4];
int Width=4;
TheHMC.Resources.SetMomentumFilter(new DDHMCFilter<WilsonImplR::Field>(Block4,Width));
//////////////////////////
// Fermion Grids
//////////////////////////
auto FGrid = SpaceTimeGrid::makeFiveDimGrid(Ls,GridPtr);
auto FrbGrid = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,GridPtr);
Coordinate simdF = GridDefaultSimd(Nd,vComplexF::Nsimd());
auto GridPtrF = SpaceTimeGrid::makeFourDimGrid(latt4,simdF,mpi);
auto GridRBPtrF = SpaceTimeGrid::makeFourDimRedBlackGrid(GridPtrF);
auto FGridF = SpaceTimeGrid::makeFiveDimGrid(Ls,GridPtrF);
auto FrbGridF = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,GridPtrF);
IwasakiGaugeActionR GaugeAction(beta);
// temporarily need a gauge field
LatticeGaugeField U(GridPtr);
LatticeGaugeFieldF UF(GridPtrF);
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);
Params.dirichlet=NonDirichlet;
FermionAction::ImplParams ParamsDir(boundary);
ParamsDir.dirichlet=Dirichlet;
// double StoppingCondition = 1e-14;
// double MDStoppingCondition = 1e-9;
double StoppingCondition = 1e-10;
double MDStoppingCondition = 1e-6;
double MDStoppingConditionLoose = 1e-6;
double MaxCGIterations = 300000;
ConjugateGradient<FermionField> CG(StoppingCondition,MaxCGIterations);
ConjugateGradient<FermionField> MDCG(MDStoppingCondition,MaxCGIterations);
////////////////////////////////////
// Collect actions
////////////////////////////////////
ActionLevel<HMCWrapper::Field> Level1(1);
ActionLevel<HMCWrapper::Field> Level2(4);
ActionLevel<HMCWrapper::Field> Level3(8);
////////////////////////////////////
// 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);
FermionAction StrangeOpDir (U,*FGrid,*FrbGrid,*GridPtr,*GridRBPtr,strange_mass,M5,b,c, ParamsDir);
FermionAction StrangePauliVillarsOpDir(U,*FGrid,*FrbGrid,*GridPtr,*GridRBPtr,pv_mass, M5,b,c, ParamsDir);
OneFlavourEvenOddRatioRationalPseudoFermionAction<FermionImplPolicy> StrangePseudoFermionBdy(StrangeOpDir,StrangeOp,SFRp);
OneFlavourEvenOddRatioRationalPseudoFermionAction<FermionImplPolicy> StrangePseudoFermionLocal(StrangePauliVillarsOpDir,StrangeOpDir,SFRp);
OneFlavourEvenOddRatioRationalPseudoFermionAction<FermionImplPolicy> StrangePseudoFermionPVBdy(StrangePauliVillarsOp,StrangePauliVillarsOpDir,SFRp);
Level1.push_back(&StrangePseudoFermionBdy);
Level2.push_back(&StrangePseudoFermionLocal);
Level1.push_back(&StrangePseudoFermionPVBdy);
////////////////////////////////////
// up down action
////////////////////////////////////
std::vector<Real> light_den;
std::vector<Real> light_num;
std::vector<int> dirichlet_den;
std::vector<int> dirichlet_num;
int n_hasenbusch = hasenbusch.size();
light_den.push_back(light_mass); dirichlet_den.push_back(0);
for(int h=0;h<n_hasenbusch;h++){
light_den.push_back(hasenbusch[h]); dirichlet_den.push_back(1);
}
for(int h=0;h<n_hasenbusch;h++){
light_num.push_back(hasenbusch[h]); dirichlet_num.push_back(1);
}
light_num.push_back(pv_mass); dirichlet_num.push_back(0);
std::vector<FermionAction *> Numerators;
std::vector<FermionAction *> Denominators;
std::vector<FermionActionF *> DenominatorsF;
std::vector<TwoFlavourEvenOddRatioPseudoFermionAction<FermionImplPolicy> *> Quotients;
std::vector<OneFlavourEvenOddRatioRationalPseudoFermionAction<FermionImplPolicy> *> Bdys;
std::vector<MxPCG *> ActionMPCG;
std::vector<MxPCG *> MPCG;
typedef SchurDiagMooeeOperator<FermionActionF,FermionFieldF> LinearOperatorF;
typedef SchurDiagMooeeOperator<FermionAction ,FermionField > LinearOperatorD;
std::vector<LinearOperatorD *> LinOpD;
std::vector<LinearOperatorF *> LinOpF;
for(int h=0;h<n_hasenbusch+1;h++){
std::cout << GridLogMessage
<< " 2f quotient Action ";
std::cout << "det D("<<light_den[h]<<")";
if ( dirichlet_den[h] ) std::cout << "^dirichlet ";
std::cout << "/ det D("<<light_num[h]<<")";
if ( dirichlet_num[h] ) std::cout << "^dirichlet ";
std::cout << std::endl;
FermionAction::ImplParams ParamsNum(boundary);
FermionAction::ImplParams ParamsDen(boundary);
FermionActionF::ImplParams ParamsDenF(boundary);
if ( dirichlet_num[h]==1) ParamsNum.dirichlet = Dirichlet;
else ParamsNum.dirichlet = NonDirichlet;
Numerators.push_back (new FermionAction(U,*FGrid,*FrbGrid,*GridPtr,*GridRBPtr,light_num[h],M5,b,c, ParamsNum));
if ( dirichlet_den[h]==1) ParamsDen.dirichlet = Dirichlet;
else ParamsDen.dirichlet = NonDirichlet;
Denominators.push_back(new FermionAction(U,*FGrid,*FrbGrid,*GridPtr,*GridRBPtr,light_den[h],M5,b,c, ParamsDen));
ParamsDenF.dirichlet = ParamsDen.dirichlet;
DenominatorsF.push_back(new FermionActionF(UF,*FGridF,*FrbGridF,*GridPtrF,*GridRBPtrF,light_den[h],M5,b,c, ParamsDenF));
LinOpD.push_back(new LinearOperatorD(*Denominators[h]));
LinOpF.push_back(new LinearOperatorF(*DenominatorsF[h]));
double conv = MDStoppingCondition;
if (h<3) conv= MDStoppingConditionLoose; // Relax on first two hasenbusch factors
const int MX_inner = 5000;
MPCG.push_back(new MxPCG(conv,
MX_inner,
MaxCGIterations,
GridPtrF,
FrbGridF,
*DenominatorsF[h],*Denominators[h],
*LinOpF[h], *LinOpD[h]) );
ActionMPCG.push_back(new MxPCG(StoppingCondition,
MX_inner,
MaxCGIterations,
GridPtrF,
FrbGridF,
*DenominatorsF[h],*Denominators[h],
*LinOpF[h], *LinOpD[h]) );
if(h!=0) {
// Quotients.push_back (new TwoFlavourEvenOddRatioPseudoFermionAction<FermionImplPolicy>(*Numerators[h],*Denominators[h],MDCG,CG));
Quotients.push_back (new TwoFlavourEvenOddRatioPseudoFermionAction<FermionImplPolicy>(*Numerators[h],*Denominators[h],*MPCG[h],*ActionMPCG[h],CG));
} else {
Bdys.push_back( new OneFlavourEvenOddRatioRationalPseudoFermionAction<FermionImplPolicy>(*Numerators[h],*Denominators[h],OFRp));
Bdys.push_back( new OneFlavourEvenOddRatioRationalPseudoFermionAction<FermionImplPolicy>(*Numerators[h],*Denominators[h],OFRp));
}
}
int nquo=Quotients.size();
Level1.push_back(Bdys[0]);
Level1.push_back(Bdys[1]);
for(int h=0;h<nquo-1;h++){
Level2.push_back(Quotients[h]);
}
Level2.push_back(Quotients[nquo-1]);
/////////////////////////////////////////////////////////////
// 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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