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Mixed precision now supported in MADWF
This commit is contained in:
Peter Boyle
parent
f0229025e2
commit
24c07694bc
@ -30,6 +30,17 @@ Author: Peter Boyle <paboyle@ph.ed.ac.uk>
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namespace Grid {
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namespace QCD {
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template <class Fieldi, class Fieldo,IfNotSame<Fieldi,Fieldo> X=0>
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inline void convert(const Fieldi &from,Fieldo &to)
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{
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precisionChange(to,from);
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}
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template <class Fieldi, class Fieldo,IfSame<Fieldi,Fieldo> X=0>
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inline void convert(const Fieldi &from,Fieldo &to)
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{
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to=from;
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}
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template<class Matrixo,class Matrixi,class PVinverter,class SchurSolver, class Guesser>
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class MADWF
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{
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@ -70,8 +81,10 @@ class MADWF
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std::cout << GridLogMessage<< " MADWF-like algorithm " << std::endl;
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std::cout << GridLogMessage<< " ************************************************" << std::endl;
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FermionFieldo c0(Mato.GaugeGrid()); // 4d
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FermionFieldo y0(Mato.GaugeGrid()); // 4d
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FermionFieldi c0i(Mati.GaugeGrid()); // 4d
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FermionFieldi y0i(Mati.GaugeGrid()); // 4d
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FermionFieldo c0 (Mato.GaugeGrid()); // 4d
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FermionFieldo y0 (Mato.GaugeGrid()); // 4d
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FermionFieldo A(Mato.FermionGrid()); // Temporary outer
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FermionFieldo B(Mato.FermionGrid()); // Temporary outer
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@ -110,15 +123,16 @@ class MADWF
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// Solve the inner system with surface term c0
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////////////////////////////////////////////////
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ci = zero;
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InsertSlice(c0,ci,0, 0);
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convert(c0,c0i); // Possible precison change
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InsertSlice(c0i,ci,0, 0);
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// Dwm P y = Dwm x = D(1) P (c0,0,0,0)^T
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Mati.P(ci,Ai);
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Mati.SetMass(1.0); Mati.M(Ai,srci); Mati.SetMass(m);
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SchurSolveri(Mati,srci,xi,Guesseri);
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Mati.Pdag(xi,yi);
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ExtractSlice(y0, yi, 0 , 0);
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ExtractSlice(y0i, yi, 0 , 0);
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convert(y0i,y0); // Possible precision change
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//////////////////////////////////////
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// Propagate solution back to outer system
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@ -85,8 +85,9 @@ void TestReconstruct5D(What & Ddwf,
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GridParallelRNG *RNG4,
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GridParallelRNG *RNG5);
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template<class What>
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template<class What,class WhatF>
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void TestReconstruct5DFA(What & Ddwf,
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WhatF & DdwfF,
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LatticeGaugeField &Umu,
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GridCartesian * FGrid, GridRedBlackCartesian * FrbGrid,
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GridCartesian * UGrid, GridRedBlackCartesian * UrbGrid,
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@ -102,19 +103,31 @@ int main (int argc, char ** argv)
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std::cout<<GridLogMessage << "Grid is setup to use "<<threads<<" threads"<<std::endl;
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const int Ls=8;
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GridCartesian * UGrid = SpaceTimeGrid::makeFourDimGrid(GridDefaultLatt(), GridDefaultSimd(Nd,vComplex::Nsimd()),GridDefaultMpi());
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GridCartesian * UGrid = SpaceTimeGrid::makeFourDimGrid(GridDefaultLatt(),
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GridDefaultSimd(Nd,vComplex::Nsimd()),
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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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GridCartesian * UGridF = SpaceTimeGrid::makeFourDimGrid(GridDefaultLatt(),
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GridDefaultSimd(Nd,vComplexF::Nsimd()),
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GridDefaultMpi());
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GridRedBlackCartesian * UrbGridF = SpaceTimeGrid::makeFourDimRedBlackGrid(UGridF);
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GridCartesian * FGridF = SpaceTimeGrid::makeFiveDimGrid(Ls,UGridF);
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GridRedBlackCartesian * FrbGridF = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,UGridF);
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std::vector<int> seeds4({1,2,3,4});
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std::vector<int> seeds5({5,6,7,8});
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GridParallelRNG RNG5(FGrid); RNG5.SeedFixedIntegers(seeds5);
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GridParallelRNG RNG4(UGrid); RNG4.SeedFixedIntegers(seeds4);
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LatticeGaugeField Umu(UGrid);
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LatticeGaugeFieldF UmuF(UGridF);
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SU3::HotConfiguration(RNG4,Umu);
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precisionChange(UmuF,Umu);
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std::vector<LatticeColourMatrix> U(4,UGrid);
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RealD mass=0.1;
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@ -123,8 +136,9 @@ int main (int argc, char ** argv)
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std::cout<<GridLogMessage <<"DomainWallFermion test"<<std::endl;
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std::cout<<GridLogMessage <<"======================"<<std::endl;
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DomainWallFermionR Ddwf(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5);
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DomainWallFermionF DdwfF(UmuF,*FGridF,*FrbGridF,*UGridF,*UrbGridF,mass,M5);
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TestCGinversions<DomainWallFermionR>(Ddwf,Umu,FGrid,FrbGrid,UGrid,UrbGrid,mass,M5,&RNG4,&RNG5);
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TestReconstruct5DFA<DomainWallFermionR>(Ddwf,Umu,FGrid,FrbGrid,UGrid,UrbGrid,mass,M5,&RNG4,&RNG5);
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TestReconstruct5DFA<DomainWallFermionR,DomainWallFermionF>(Ddwf,DdwfF,Umu,FGrid,FrbGrid,UGrid,UrbGrid,mass,M5,&RNG4,&RNG5);
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RealD b=1.5;// Scale factor b+c=2, b-c=1
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RealD c=0.5;
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@ -134,8 +148,9 @@ int main (int argc, char ** argv)
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std::cout<<GridLogMessage <<"MobiusFermion test"<<std::endl;
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std::cout<<GridLogMessage <<"======================"<<std::endl;
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MobiusFermionR Dmob(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5,b,c);
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MobiusFermionF DmobF(UmuF,*FGridF,*FrbGridF,*UGridF,*UrbGridF,mass,M5,b,c);
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TestCGinversions<MobiusFermionR>(Dmob,Umu,FGrid,FrbGrid,UGrid,UrbGrid,mass,M5,&RNG4,&RNG5);
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TestReconstruct5DFA<MobiusFermionR>(Dmob,Umu,FGrid,FrbGrid,UGrid,UrbGrid,mass,M5,&RNG4,&RNG5);
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TestReconstruct5DFA<MobiusFermionR,MobiusFermionF>(Dmob,DmobF,Umu,FGrid,FrbGrid,UGrid,UrbGrid,mass,M5,&RNG4,&RNG5);
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std::cout<<GridLogMessage <<"======================"<<std::endl;
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std::cout<<GridLogMessage <<"ZMobiusFermion test"<<std::endl;
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@ -155,8 +170,9 @@ int main (int argc, char ** argv)
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std::cout<<GridLogMessage <<"ScaledShamirFermion test"<<std::endl;
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std::cout<<GridLogMessage <<"======================"<<std::endl;
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ScaledShamirFermionR Dsham(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5,2.0);
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ScaledShamirFermionF DshamF(UmuF,*FGridF,*FrbGridF,*UGridF,*UrbGridF,mass,M5,2.0);
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TestCGinversions<ScaledShamirFermionR>(Dsham,Umu,FGrid,FrbGrid,UGrid,UrbGrid,mass,M5,&RNG4,&RNG5);
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TestReconstruct5DFA<ScaledShamirFermionR>(Dsham,Umu,FGrid,FrbGrid,UGrid,UrbGrid,mass,M5,&RNG4,&RNG5);
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TestReconstruct5DFA<ScaledShamirFermionR,ScaledShamirFermionF>(Dsham,DshamF,Umu,FGrid,FrbGrid,UGrid,UrbGrid,mass,M5,&RNG4,&RNG5);
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std::cout<<GridLogMessage <<"======================"<<std::endl;
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std::cout<<GridLogMessage <<"ShamirZolotarevFermion test"<<std::endl;
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@ -168,9 +184,10 @@ int main (int argc, char ** argv)
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std::cout<<GridLogMessage <<"======================"<<std::endl;
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std::cout<<GridLogMessage <<"OverlapWilsonCayleyTanhFermion test"<<std::endl;
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std::cout<<GridLogMessage <<"======================"<<std::endl;
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OverlapWilsonCayleyTanhFermionR Dov(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5,1.0);
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OverlapWilsonCayleyTanhFermionR Dov (Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5,1.0);
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OverlapWilsonCayleyTanhFermionF DovF(UmuF,*FGridF,*FrbGridF,*UGridF,*UrbGridF,mass,M5,1.0);
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TestCGinversions<OverlapWilsonCayleyTanhFermionR>(Dov,Umu,FGrid,FrbGrid,UGrid,UrbGrid,mass,M5,&RNG4,&RNG5);
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TestReconstruct5DFA<OverlapWilsonCayleyTanhFermionR>(Dov,Umu,FGrid,FrbGrid,UGrid,UrbGrid,mass,M5,&RNG4,&RNG5);
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TestReconstruct5DFA<OverlapWilsonCayleyTanhFermionR,OverlapWilsonCayleyTanhFermionF>(Dov,DovF,Umu,FGrid,FrbGrid,UGrid,UrbGrid,mass,M5,&RNG4,&RNG5);
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std::cout<<GridLogMessage <<"======================"<<std::endl;
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std::cout<<GridLogMessage <<"OverlapWilsonCayleyZolotarevFermion test"<<std::endl;
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@ -304,14 +321,15 @@ void TestReconstruct5D(What & Ddwf,
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}
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template<class What>
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template<class What,class WhatF>
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void TestReconstruct5DFA(What & Ddwf,
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LatticeGaugeField & Umu,
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GridCartesian * FGrid, GridRedBlackCartesian * FrbGrid,
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GridCartesian * UGrid, GridRedBlackCartesian * UrbGrid,
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RealD mass, RealD M5,
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GridParallelRNG *RNG4,
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GridParallelRNG *RNG5)
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WhatF & DdwfF,
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LatticeGaugeField & Umu,
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GridCartesian * FGrid, GridRedBlackCartesian * FrbGrid,
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GridCartesian * UGrid, GridRedBlackCartesian * UrbGrid,
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RealD mass, RealD M5,
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GridParallelRNG *RNG4,
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GridParallelRNG *RNG5)
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{
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LatticeFermion src4 (UGrid); random(*RNG4,src4);
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LatticeFermion res4 (UGrid); res4 = zero;
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@ -326,7 +344,7 @@ void TestReconstruct5DFA(What & Ddwf,
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double Resid = 1.0e-12;
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double Residi = 1.0e-5;
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ConjugateGradient<LatticeFermion> CG(Resid,10000);
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ConjugateGradient<LatticeFermion> CGi(Residi,10000);
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ConjugateGradient<LatticeFermionF> CGi(Residi,10000);
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Ddwf.ImportPhysicalFermionSource(src4,src);
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Ddwf.Mdag(src,src_NE);
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@ -344,7 +362,8 @@ void TestReconstruct5DFA(What & Ddwf,
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// Fourier accel PV inverse
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////////////////////////////
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typedef LatticeFermion Field;
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typedef SchurRedBlackDiagTwoSolve<Field> SchurSolverTypei;
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typedef LatticeFermionF FieldF;
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typedef SchurRedBlackDiagTwoSolve<FieldF> SchurSolverTypei;
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typedef PauliVillarsSolverFourierAccel<LatticeFermion,LatticeGaugeField> PVinverter;
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PVinverter PVinverse(Umu,CG);
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@ -362,9 +381,9 @@ void TestReconstruct5DFA(What & Ddwf,
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// Now try MADWF
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//////////////////////////////
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SchurSolverTypei SchurSolver(CGi);
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ZeroGuesser<LatticeFermion> Guess;
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MADWF<What,What,PVinverter,SchurSolverTypei,ZeroGuesser<LatticeFermion> >
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madwf(Ddwf,Ddwf,PVinverse,SchurSolver,Guess,Resid,10);
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ZeroGuesser<LatticeFermionF> Guess;
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MADWF<What,WhatF,PVinverter,SchurSolverTypei,ZeroGuesser<LatticeFermionF> >
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madwf(Ddwf,DdwfF,PVinverse,SchurSolver,Guess,Resid,10);
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madwf(src4,result_madwf);
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result_madwf = result_madwf - result;
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