mirror of
https://github.com/paboyle/Grid.git
synced 2025-06-20 00:36:55 +01:00
Sizable improvement in multigrid for unsquared.
6000 matmuls CG unprec 2000 matmuls CG prec (4000 eo muls) 1050 matmuls PGCR on 16^3 x 32 x 8 m=.01 Substantial effort on timing and logging infrastructure
This commit is contained in:
Peter Boyle
@ -53,7 +53,7 @@ public:
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// _FineOperator.Op(p1,p2);// this is the G5 herm bit
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RealD absp2=std::sqrt(norm2(p2));
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if(i%10==9)
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std::cout << "Power method on mdagm "<<i<<" " << absp2/absp1<<std::endl;
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std::cout<<GridLogMessage << "Power method on mdagm "<<i<<" " << absp2/absp1<<std::endl;
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p1=p2*(1.0/std::sqrt(absp2));
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}
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}
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@ -71,7 +71,7 @@ public:
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// Monitor completeness of low mode space
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_Aggregates.ProjectToSubspace (Csrc,in);
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_Aggregates.PromoteFromSubspace(Csrc,out);
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std::cout<<"Completeness: "<<std::sqrt(norm2(out)/norm2(in))<<std::endl;
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std::cout<<GridLogMessage<<"Completeness: "<<std::sqrt(norm2(out)/norm2(in))<<std::endl;
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// Build some solvers
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ConjugateGradient<FineField> fCG(1.0e-3,1000);
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@ -85,21 +85,21 @@ public:
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MdagMLinearOperator<Matrix,FineField> MdagMOp(_Matrix);
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Min=in;
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std::cout<< " Preconditioner in " << norm2(in)<<std::endl;
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std::cout<<GridLogMessage<< " Preconditioner in " << norm2(in)<<std::endl;
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_FineOperator.AdjOp(Min,tmp);
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std::cout<< " Preconditioner tmp " << norm2(in)<<std::endl;
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std::cout<<GridLogMessage<< " Preconditioner tmp " << norm2(in)<<std::endl;
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fCG(MdagMOp,tmp,out);
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_FineOperator.Op(out,tmp);
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std::cout<< " Preconditioner in " << norm2(in)<<std::endl;
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std::cout<< " Preconditioner out " << norm2(out)<<std::endl;
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std::cout<< " Preconditioner Aout" << norm2(tmp)<<std::endl;
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std::cout<<GridLogMessage<< " Preconditioner in " << norm2(in)<<std::endl;
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std::cout<<GridLogMessage<< " Preconditioner out " << norm2(out)<<std::endl;
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std::cout<<GridLogMessage<< " Preconditioner Aout" << norm2(tmp)<<std::endl;
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tmp = tmp - in;
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std::cout<<"preconditioner thinks residual is "<<std::sqrt(norm2(tmp)/norm2(in))<<std::endl;
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std::cout<<GridLogMessage<<"preconditioner thinks residual is "<<std::sqrt(norm2(tmp)/norm2(in))<<std::endl;
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/*
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// _FineOperator.Op(Min,out);
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@ -145,7 +145,7 @@ public:
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// Monitor completeness of low mode space
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_Aggregates.ProjectToSubspace (Csrc,in);
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_Aggregates.PromoteFromSubspace(Csrc,out);
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std::cout<<"Coarse Grid Preconditioner\nCompleteness in: "<<std::sqrt(norm2(out)/norm2(in))<<std::endl;
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std::cout<<GridLogMessage<<"Coarse Grid Preconditioner\nCompleteness in: "<<std::sqrt(norm2(out)/norm2(in))<<std::endl;
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// [PTM+Q] in = [1 - Q A] M in + Q in = Min + Q [ in -A Min]
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_FineOperator.Op(in,tmp);// this is the G5 herm bit
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@ -154,7 +154,7 @@ public:
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// Monitor completeness of low mode space
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_Aggregates.ProjectToSubspace (Csrc,Min);
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_Aggregates.PromoteFromSubspace(Csrc,out);
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std::cout<<"Completeness Min: "<<std::sqrt(norm2(out)/norm2(Min))<<std::endl;
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std::cout<<GridLogMessage<<"Completeness Min: "<<std::sqrt(norm2(out)/norm2(Min))<<std::endl;
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_FineOperator.Op(Min,tmp);
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tmp = in - tmp; // in - A Min
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@ -166,14 +166,14 @@ public:
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HermOp.Op(Csol,Ctmp);
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Ctmp=Ctmp-Csrc;
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std::cout<<"coarse space true residual "<<std::sqrt(norm2(Ctmp)/norm2(Csrc))<<std::endl;
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std::cout<<GridLogMessage<<"coarse space true residual "<<std::sqrt(norm2(Ctmp)/norm2(Csrc))<<std::endl;
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_Aggregates.PromoteFromSubspace(Csol,out);
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_FineOperator.Op(out,res);
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res=res-tmp;
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std::cout<<"promoted sol residual "<<std::sqrt(norm2(res)/norm2(tmp))<<std::endl;
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std::cout<<GridLogMessage<<"promoted sol residual "<<std::sqrt(norm2(res)/norm2(tmp))<<std::endl;
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_Aggregates.ProjectToSubspace (Csrc,res);
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std::cout<<"coarse space proj of residual "<<norm2(Csrc)<<std::endl;
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std::cout<<GridLogMessage<<"coarse space proj of residual "<<norm2(Csrc)<<std::endl;
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out = out+Min; // additive coarse space correction
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@ -182,9 +182,9 @@ public:
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_FineOperator.Op(out,tmp);
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tmp=tmp-in; // tmp is new residual
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std::cout<< " Preconditioner in " << norm2(in)<<std::endl;
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std::cout<< " Preconditioner out " << norm2(out)<<std::endl;
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std::cout<<"preconditioner thinks residual is "<<std::sqrt(norm2(tmp)/norm2(in))<<std::endl;
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std::cout<<GridLogMessage<< " Preconditioner in " << norm2(in)<<std::endl;
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std::cout<<GridLogMessage<< " Preconditioner out " << norm2(out)<<std::endl;
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std::cout<<GridLogMessage<<"preconditioner thinks residual is "<<std::sqrt(norm2(tmp)/norm2(in))<<std::endl;
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}
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#endif
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@ -210,7 +210,7 @@ public:
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// Monitor completeness of low mode space
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// _Aggregates.ProjectToSubspace (Csrc,in);
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// _Aggregates.PromoteFromSubspace(Csrc,out);
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// std::cout<<"Coarse Grid Preconditioner\nCompleteness in: "<<std::sqrt(norm2(out)/norm2(in))<<std::endl;
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// std::cout<<GridLogMessage<<"Coarse Grid Preconditioner\nCompleteness in: "<<std::sqrt(norm2(out)/norm2(in))<<std::endl;
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_Aggregates.ProjectToSubspace (Csrc,in);
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HermOp.AdjOp(Csrc,Ctmp);// Normal equations
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@ -229,7 +229,7 @@ public:
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_FineOperator.Op(out,tmp);
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tmp=tmp-in; // tmp is new residual
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std::cout<<"preconditioner thinks residual is "<<std::sqrt(norm2(tmp)/norm2(in))<<std::endl;
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std::cout<<GridLogMessage<<"preconditioner thinks residual is "<<std::sqrt(norm2(tmp)/norm2(in))<<std::endl;
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}
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#endif
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@ -247,8 +247,8 @@ public:
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Ni = norm2(in);
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for(int ilo=0;ilo<4;ilo++){
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for(int ord=10;ord<60;ord+=10){
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for(int ilo=0;ilo<3;ilo++){
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for(int ord=5;ord<50;ord*=2){
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_FineOperator.AdjOp(in,vec1);
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@ -258,7 +258,7 @@ public:
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_FineOperator.Op(vec2,vec1);// this is the G5 herm bit
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vec1 = in - vec1; // tmp = in - A Min
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r=norm2(vec1);
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std::cout << "Smoother resid "<<std::sqrt(r/Ni)<<std::endl;
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std::cout<<GridLogMessage << "Smoother resid "<<std::sqrt(r/Ni)<<std::endl;
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}
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}
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@ -270,13 +270,13 @@ public:
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CoarseVector Ctmp(_CoarseOperator.Grid());
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CoarseVector Csol(_CoarseOperator.Grid()); Csol=zero;
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ConjugateGradient<CoarseVector> CG(1.0e-5,100000);
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ConjugateGradient<FineField> fCG(3.0e-2,1000);
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ConjugateGradient<CoarseVector> CG(1.0e-3,100000);
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// ConjugateGradient<FineField> fCG(3.0e-2,1000);
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HermitianLinearOperator<CoarseOperator,CoarseVector> HermOp(_CoarseOperator);
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MdagMLinearOperator<CoarseOperator,CoarseVector> MdagMOp(_CoarseOperator);
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// MdagMLinearOperator<Matrix,FineField> fMdagMOp(_Matrix);
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ShiftedMdagMLinearOperator<Matrix,FineField> fMdagMOp(_Matrix,1.0);
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ShiftedMdagMLinearOperator<Matrix,FineField> fMdagMOp(_Matrix,0.0);
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FineField vec1(in._grid);
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FineField vec2(in._grid);
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@ -288,7 +288,7 @@ public:
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_Aggregates.ProjectToSubspace (Csrc,in);
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_Aggregates.PromoteFromSubspace(Csrc,out);
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std::cout<<"Completeness: "<<std::sqrt(norm2(out)/norm2(in))<<std::endl;
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std::cout<<GridLogMessage<<"Completeness: "<<std::sqrt(norm2(out)/norm2(in))<<std::endl;
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// ofstream fout("smoother");
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// Cheby.csv(fout);
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@ -306,7 +306,7 @@ public:
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_FineOperator.AdjOp(in,vec1);// this is the G5 herm bit
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ChebyAccu(fMdagMOp,vec1,out); // solves MdagM = g5 M g5M
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std::cout << "Smoother norm "<<norm2(out)<<std::endl;
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std::cout<<GridLogMessage << "Smoother norm "<<norm2(out)<<std::endl;
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// Update with residual for out
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_FineOperator.Op(out,vec1);// this is the G5 herm bit
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@ -314,7 +314,7 @@ public:
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RealD r = norm2(vec1);
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std::cout << "Smoother resid "<<std::sqrt(r/Ni)<< " " << r << " " << Ni <<std::endl;
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std::cout<<GridLogMessage << "Smoother resid "<<std::sqrt(r/Ni)<< " " << r << " " << Ni <<std::endl;
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_Aggregates.ProjectToSubspace (Csrc,vec1);
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HermOp.AdjOp(Csrc,Ctmp);// Normal equations
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@ -329,7 +329,7 @@ public:
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vec1 = in - vec1; // tmp = in - A Min
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r=norm2(vec1);
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std::cout << "Coarse resid "<<std::sqrt(r/Ni)<<std::endl;
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std::cout<<GridLogMessage << "Coarse resid "<<std::sqrt(r/Ni)<<std::endl;
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// Reapply smoother
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_FineOperator.Op(vec1,vec2); // this is the G5 herm bit
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@ -339,7 +339,7 @@ public:
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_FineOperator.Op(out,vec1);// this is the G5 herm bit
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vec1 = in - vec1; // tmp = in - A Min
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r=norm2(vec1);
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std::cout << "Smoother resid "<<std::sqrt(r/Ni)<<std::endl;
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std::cout<<GridLogMessage << "Smoother resid "<<std::sqrt(r/Ni)<<std::endl;
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}
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@ -385,7 +385,7 @@ int main (int argc, char ** argv)
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LatticeGaugeField Umu(UGrid);
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NerscField header;
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std::string file("./ckpoint_lat.4000");
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std::string file("./ckpoint_lat.400");
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readNerscConfiguration(Umu,header,file);
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// SU3::ColdConfiguration(RNG4,Umu);
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@ -396,9 +396,9 @@ int main (int argc, char ** argv)
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RealD mass=0.01;
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RealD M5=1.8;
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std::cout << "**************************************************"<< std::endl;
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std::cout << "Building g5R5 hermitian DWF operator" <<std::endl;
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std::cout << "**************************************************"<< std::endl;
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std::cout<<GridLogMessage << "**************************************************"<< std::endl;
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std::cout<<GridLogMessage << "Building g5R5 hermitian DWF operator" <<std::endl;
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std::cout<<GridLogMessage << "**************************************************"<< std::endl;
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DomainWallFermion Ddwf(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5);
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const int nbasis = 32;
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@ -408,22 +408,22 @@ int main (int argc, char ** argv)
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typedef CoarsenedMatrix<vSpinColourVector,vTComplex,nbasis> CoarseOperator;
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typedef CoarseOperator::CoarseVector CoarseVector;
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std::cout << "**************************************************"<< std::endl;
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std::cout << "Calling Aggregation class to build subspace" <<std::endl;
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std::cout << "**************************************************"<< std::endl;
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std::cout<<GridLogMessage << "**************************************************"<< std::endl;
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std::cout<<GridLogMessage << "Calling Aggregation class to build subspace" <<std::endl;
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std::cout<<GridLogMessage << "**************************************************"<< std::endl;
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MdagMLinearOperator<DomainWallFermion,LatticeFermion> HermDefOp(Ddwf);
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Subspace Aggregates(Coarse5d,FGrid);
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// Aggregates.CreateSubspace(RNG5,HermDefOp,nbasis);
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assert ( (nbasis & 0x1)==0);
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int nb=nbasis/2;
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std::cout << " nbasis/2 = "<<nb<<std::endl;
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std::cout<<GridLogMessage << " nbasis/2 = "<<nb<<std::endl;
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Aggregates.CreateSubspace(RNG5,HermDefOp,nb);
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for(int n=0;n<nb;n++){
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G5R5(Aggregates.subspace[n+nb],Aggregates.subspace[n]);
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std::cout<<n<<" subspace "<<norm2(Aggregates.subspace[n+nb])<<" "<<norm2(Aggregates.subspace[n]) <<std::endl;
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std::cout<<GridLogMessage<<n<<" subspace "<<norm2(Aggregates.subspace[n+nb])<<" "<<norm2(Aggregates.subspace[n]) <<std::endl;
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}
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for(int n=0;n<nbasis;n++){
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std::cout << "vec["<<n<<"] = "<<norm2(Aggregates.subspace[n]) <<std::endl;
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std::cout<<GridLogMessage << "vec["<<n<<"] = "<<norm2(Aggregates.subspace[n]) <<std::endl;
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}
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// for(int i=0;i<nbasis;i++){
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@ -432,77 +432,90 @@ int main (int argc, char ** argv)
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// }
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result=zero;
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std::cout << "**************************************************"<< std::endl;
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std::cout << "Building coarse representation of Indef operator" <<std::endl;
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std::cout << "**************************************************"<< std::endl;
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std::cout<<GridLogMessage << "**************************************************"<< std::endl;
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std::cout<<GridLogMessage << "Building coarse representation of Indef operator" <<std::endl;
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std::cout<<GridLogMessage << "**************************************************"<< std::endl;
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Gamma5R5HermitianLinearOperator<DomainWallFermion,LatticeFermion> HermIndefOp(Ddwf);
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CoarsenedMatrix<vSpinColourVector,vTComplex,nbasis> LDOp(*Coarse5d);
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LDOp.CoarsenOperator(FGrid,HermIndefOp,Aggregates);
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std::cout << "**************************************************"<< std::endl;
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std::cout << "Testing some coarse space solvers " <<std::endl;
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std::cout << "**************************************************"<< std::endl;
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std::cout<<GridLogMessage << "**************************************************"<< std::endl;
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std::cout<<GridLogMessage << "Testing some coarse space solvers " <<std::endl;
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std::cout<<GridLogMessage << "**************************************************"<< std::endl;
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CoarseVector c_src (Coarse5d);
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CoarseVector c_res (Coarse5d);
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gaussian(CRNG,c_src);
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c_res=zero;
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std::cout << "**************************************************"<< std::endl;
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std::cout << "Solving posdef-CG on coarse space "<< std::endl;
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std::cout << "**************************************************"<< std::endl;
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std::cout<<GridLogMessage << "**************************************************"<< std::endl;
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std::cout<<GridLogMessage << "Solving posdef-CG on coarse space "<< std::endl;
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std::cout<<GridLogMessage << "**************************************************"<< std::endl;
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MdagMLinearOperator<CoarseOperator,CoarseVector> PosdefLdop(LDOp);
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ConjugateGradient<CoarseVector> CG(1.0e-6,100000);
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CG(PosdefLdop,c_src,c_res);
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// std::cout << "**************************************************"<< std::endl;
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// std::cout << "Solving indef-MCR on coarse space "<< std::endl;
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// std::cout << "**************************************************"<< std::endl;
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// std::cout<<GridLogMessage << "**************************************************"<< std::endl;
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// std::cout<<GridLogMessage << "Solving indef-MCR on coarse space "<< std::endl;
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// std::cout<<GridLogMessage << "**************************************************"<< std::endl;
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// HermitianLinearOperator<CoarseOperator,CoarseVector> HermIndefLdop(LDOp);
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// ConjugateResidual<CoarseVector> MCR(1.0e-6,100000);
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//MCR(HermIndefLdop,c_src,c_res);
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std::cout << "**************************************************"<< std::endl;
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std::cout << "Building deflation preconditioner "<< std::endl;
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std::cout << "**************************************************"<< std::endl;
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std::cout<<GridLogMessage << "**************************************************"<< std::endl;
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std::cout<<GridLogMessage << "Building deflation preconditioner "<< std::endl;
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std::cout<<GridLogMessage << "**************************************************"<< std::endl;
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MultiGridPreconditioner <vSpinColourVector,vTComplex,nbasis,DomainWallFermion> Precon(Aggregates, LDOp,HermIndefOp,Ddwf);
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TrivialPrecon<LatticeFermion> simple;
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std::cout << "**************************************************"<< std::endl;
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std::cout << "Testing smoother efficacy"<< std::endl;
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std::cout << "**************************************************"<< std::endl;
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std::cout<<GridLogMessage << "**************************************************"<< std::endl;
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std::cout<<GridLogMessage << "Testing smoother efficacy"<< std::endl;
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std::cout<<GridLogMessage << "**************************************************"<< std::endl;
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Precon.SmootherTest(src);
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std::cout << "**************************************************"<< std::endl;
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std::cout << "Unprec CG "<< std::endl;
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std::cout << "**************************************************"<< std::endl;
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std::cout<<GridLogMessage << "**************************************************"<< std::endl;
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std::cout<<GridLogMessage << "Unprec CG "<< std::endl;
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std::cout<<GridLogMessage << "**************************************************"<< std::endl;
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// TrivialPrecon<LatticeFermion> simple;
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// ConjugateGradient<LatticeFermion> fCG(1.0e-8,100000);
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// fCG(HermDefOp,src,result);
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// exit(0);
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std::cout << "**************************************************"<< std::endl;
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std::cout << "Testing GCR on indef matrix "<< std::endl;
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std::cout << "**************************************************"<< std::endl;
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std::cout<<GridLogMessage << "**************************************************"<< std::endl;
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std::cout<<GridLogMessage << "Testing GCR on indef matrix "<< std::endl;
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std::cout<<GridLogMessage << "**************************************************"<< std::endl;
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// PrecGeneralisedConjugateResidual<LatticeFermion> UPGCR(1.0e-8,100000,simple,8,128);
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// UPGCR(HermIndefOp,src,result);
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/// Get themax eval
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std::cout << "**************************************************"<< std::endl;
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std::cout <<" Applying power method to find spectral range "<<std::endl;
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std::cout << "**************************************************"<< std::endl;
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std::cout<<GridLogMessage << "**************************************************"<< std::endl;
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std::cout<<GridLogMessage <<" Applying power method to find spectral range "<<std::endl;
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std::cout<<GridLogMessage << "**************************************************"<< std::endl;
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Precon.PowerMethod(src);
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std::cout << "**************************************************"<< std::endl;
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std::cout << "Building a two level PGCR "<< std::endl;
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std::cout << "**************************************************"<< std::endl;
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std::cout<<GridLogMessage << "**************************************************"<< std::endl;
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std::cout<<GridLogMessage << "Building a two level PGCR "<< std::endl;
|
||||
std::cout<<GridLogMessage << "**************************************************"<< std::endl;
|
||||
PrecGeneralisedConjugateResidual<LatticeFermion> PGCR(1.0e-8,100000,Precon,8,128);
|
||||
std::cout<<"checking norm src "<<norm2(src)<<std::endl;
|
||||
std::cout<<GridLogMessage<<"checking norm src "<<norm2(src)<<std::endl;
|
||||
PGCR(HermIndefOp,src,result);
|
||||
|
||||
std::cout << "**************************************************"<< std::endl;
|
||||
std::cout << "Done "<< std::endl;
|
||||
std::cout << "**************************************************"<< std::endl;
|
||||
std::cout<<GridLogMessage << "**************************************************"<< std::endl;
|
||||
std::cout<<GridLogMessage << "Red Black Prec CG "<< std::endl;
|
||||
std::cout<<GridLogMessage << "**************************************************"<< std::endl;
|
||||
SchurDiagMooeeOperator<DomainWallFermion,LatticeFermion> HermOpEO(Ddwf);
|
||||
ConjugateGradient<LatticeFermion> pCG(1.0e-8,10000);
|
||||
|
||||
LatticeFermion src_o(FrbGrid);
|
||||
LatticeFermion result_o(FrbGrid);
|
||||
pickCheckerboard(Odd,src_o,src);
|
||||
result_o=zero;
|
||||
|
||||
pCG(HermOpEO,src_o,result_o);
|
||||
|
||||
std::cout<<GridLogMessage << "**************************************************"<< std::endl;
|
||||
std::cout<<GridLogMessage << "Done "<< std::endl;
|
||||
std::cout<<GridLogMessage << "**************************************************"<< std::endl;
|
||||
Grid_finalize();
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user