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220 lines
8.1 KiB
C++
220 lines
8.1 KiB
C++
/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: ./tests/Test_fthmc.cc
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Copyright (C) 2022
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Author: Peter Boyle <pboyle@bnl.gov>
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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 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/smearing/GaugeConfigurationMasked.h>
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#include <Grid/qcd/smearing/JacobianAction.h>
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using namespace std;
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using namespace Grid;
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typedef MobiusFermionD FermionAction;
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typedef WilsonImplD FimplD;
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typedef WilsonImplD FermionImplPolicy;
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template<class Gimpl>
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void ForceTest(Action<LatticeGaugeField> &action,ConfigurationBase<LatticeGaugeField> & smU,MomentumFilterBase<LatticeGaugeField> &Filter)
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{
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LatticeGaugeField U = smU.get_U(false); // unsmeared config
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GridBase *UGrid = U.Grid();
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std::vector<int> seeds({1,2,3,5});
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GridSerialRNG sRNG; sRNG.SeedFixedIntegers(seeds);
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GridParallelRNG RNG4(UGrid); RNG4.SeedFixedIntegers(seeds);
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LatticeColourMatrix Pmu(UGrid);
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LatticeGaugeField P(UGrid);
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LatticeGaugeField UdSdU(UGrid);
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std::cout << GridLogMessage << "*********************************************************"<<std::endl;
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std::cout << GridLogMessage << " Force test for "<<action.action_name()<<std::endl;
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std::cout << GridLogMessage << "*********************************************************"<<std::endl;
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RealD eps=0.01;
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std::cout << GridLogMessage << "+++++++++++++++++++++++++++++++++++++++++++++++++++++++++"<<std::endl;
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std::cout << GridLogMessage << " Refresh "<<action.action_name()<<std::endl;
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std::cout << GridLogMessage << "+++++++++++++++++++++++++++++++++++++++++++++++++++++++++"<<std::endl;
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Gimpl::generate_momenta(P,sRNG,RNG4);
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// Filter.applyFilter(P);
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action.refresh(smU,sRNG,RNG4);
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std::cout << GridLogMessage << "+++++++++++++++++++++++++++++++++++++++++++++++++++++++++"<<std::endl;
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std::cout << GridLogMessage << " Action "<<action.action_name()<<std::endl;
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std::cout << GridLogMessage << "+++++++++++++++++++++++++++++++++++++++++++++++++++++++++"<<std::endl;
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RealD S1 = action.S(smU);
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Gimpl::update_field(P,U,eps);
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smU.set_Field(U);
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std::cout << GridLogMessage << "+++++++++++++++++++++++++++++++++++++++++++++++++++++++++"<<std::endl;
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std::cout << GridLogMessage << " Derivative "<<action.action_name()<<std::endl;
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std::cout << GridLogMessage << "+++++++++++++++++++++++++++++++++++++++++++++++++++++++++"<<std::endl;
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action.deriv(smU,UdSdU);
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UdSdU = Ta(UdSdU);
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// Filter.applyFilter(UdSdU);
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DumpSliceNorm("Force",UdSdU,Nd-1);
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Gimpl::update_field(P,U,eps);
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smU.set_Field(U);
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std::cout << GridLogMessage << "+++++++++++++++++++++++++++++++++++++++++++++++++++++++++"<<std::endl;
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std::cout << GridLogMessage << " Action "<<action.action_name()<<std::endl;
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std::cout << GridLogMessage << "+++++++++++++++++++++++++++++++++++++++++++++++++++++++++"<<std::endl;
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RealD S2 = action.S(smU);
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// Use the derivative
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LatticeComplex dS(UGrid); dS = Zero();
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for(int mu=0;mu<Nd;mu++){
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auto UdSdUmu = PeekIndex<LorentzIndex>(UdSdU,mu);
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Pmu= PeekIndex<LorentzIndex>(P,mu);
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dS = dS - trace(Pmu*UdSdUmu)*eps*2.0*HMC_MOMENTUM_DENOMINATOR;
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}
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ComplexD dSpred = sum(dS);
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RealD diff = S2-S1-dSpred.real();
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std::cout<< GridLogMessage << "+++++++++++++++++++++++++++++++++++++++++++++++++++++++++"<<std::endl;
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std::cout<< GridLogMessage << "S1 : "<< S1 <<std::endl;
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std::cout<< GridLogMessage << "S2 : "<< S2 <<std::endl;
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std::cout<< GridLogMessage << "dS : "<< S2-S1 <<std::endl;
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std::cout<< GridLogMessage << "dSpred : "<< dSpred.real() <<std::endl;
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std::cout<< GridLogMessage << "diff : "<< diff<<std::endl;
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std::cout<< GridLogMessage << "*********************************************************"<<std::endl;
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// assert(diff<1.0);
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std::cout<< GridLogMessage << "Done" <<std::endl;
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std::cout << GridLogMessage << "*********************************************************"<<std::endl;
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}
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int main (int argc, char ** argv)
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{
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Grid_init(&argc,&argv);
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std::cout << std::setprecision(14);
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Coordinate latt_size = GridDefaultLatt();
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Coordinate mpi_layout = GridDefaultMpi();
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Coordinate simd_layout = GridDefaultSimd(Nd,vComplex::Nsimd());
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Coordinate shm;
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GlobalSharedMemory::GetShmDims(mpi_layout,shm);
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const int Ls=12;
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const int Nt = latt_size[3];
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GridCartesian * UGrid = SpaceTimeGrid::makeFourDimGrid(GridDefaultLatt(), GridDefaultSimd(Nd,vComplex::Nsimd()),GridDefaultMpi());
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GridRedBlackCartesian * UrbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(UGrid);
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GridCartesian * FGrid = SpaceTimeGrid::makeFiveDimGrid(Ls,UGrid);
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GridRedBlackCartesian * FrbGrid = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,UGrid);
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///////////////////// Gauge Field and Gauge Forces ////////////////////////////
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LatticeGaugeField U(UGrid);
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#if 0
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FieldMetaData header;
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std::string file("./ckpoint_lat.2000");
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NerscIO::readConfiguration(U,header,file);
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#else
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std::vector<int> seeds({1,2,3,4,5,6,7,8});
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GridParallelRNG RNG4(UGrid); RNG4.SeedFixedIntegers(seeds);
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SU<Nc>::HotConfiguration(RNG4,U);
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#endif
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WilsonGaugeActionR PlaqAction(6.0);
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IwasakiGaugeActionR RectAction(2.13);
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PlaqAction.is_smeared = true;
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RectAction.is_smeared = true;
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////////////////////////////////////
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// Fermion Action
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////////////////////////////////////
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RealD mass=0.01;
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RealD pvmass=1.0;
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RealD M5=1.8;
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RealD b=1.5;
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RealD c=0.5;
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// Double versions
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std::vector<Complex> boundary = {1,1,1,-1};
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FermionAction::ImplParams Params(boundary);
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FermionAction DdwfPeriodic(U,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5,b,c,Params);
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FermionAction PVPeriodic (U,*FGrid,*FrbGrid,*UGrid,*UrbGrid,pvmass,M5,b,c,Params);
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double StoppingCondition = 1.0e-8;
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double MaxCGIterations = 50000;
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ConjugateGradient<LatticeFermion> CG(StoppingCondition,MaxCGIterations);
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TwoFlavourRatioPseudoFermionAction<FimplD> Nf2(PVPeriodic, DdwfPeriodic,CG,CG);
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Nf2.is_smeared = true;
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////////////////////////////////////////////////
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// Plaquette only FTHMC smearer
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////////////////////////////////////////////////
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double rho = 0.1;
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Smear_Stout<PeriodicGimplR> Smearer(rho);
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SmearedConfigurationMasked<PeriodicGimplR> SmartConfig(UGrid,2*Nd,Smearer);
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SmearedConfiguration<PeriodicGimplR> StoutConfig(UGrid,1,Smearer);
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JacobianAction<PeriodicGimplR> Jacobian(&SmartConfig);
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////////////////////////////////////////////////
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// Run some tests
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////////////////////////////////////////////////
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MomentumFilterNone<LatticeGaugeField> FilterNone;
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std::cout << " ********* FIELD TRANSFORM SMEARING ***** "<<std::endl;
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SmartConfig.set_Field(U);
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ForceTest<GimplTypesR>(PlaqAction,SmartConfig,FilterNone);
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SmartConfig.set_Field(U);
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ForceTest<GimplTypesR>(RectAction,SmartConfig,FilterNone);
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SmartConfig.set_Field(U);
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ForceTest<GimplTypesR>(Jacobian,SmartConfig,FilterNone);
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SmartConfig.set_Field(U);
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ForceTest<GimplTypesR>(Nf2,SmartConfig,FilterNone);
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std::cout << " ********* STOUT SMEARING ***** "<<std::endl;
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StoutConfig.set_Field(U);
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ForceTest<GimplTypesR>(PlaqAction,StoutConfig,FilterNone);
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StoutConfig.set_Field(U);
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ForceTest<GimplTypesR>(RectAction,StoutConfig,FilterNone);
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StoutConfig.set_Field(U);
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ForceTest<GimplTypesR>(Nf2,StoutConfig,FilterNone);
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Grid_finalize();
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}
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