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https://github.com/paboyle/Grid.git
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Some small steps towards a multigrid
This commit is contained in:
Peter Boyle
parent
fd1a8abcd1
commit
a17684ebe2
@ -1,4 +1,4 @@
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HFILES=./algorithms/approx/bigfloat.h ./algorithms/approx/bigfloat_double.h ./algorithms/approx/Chebyshev.h ./algorithms/approx/MultiShiftFunction.h ./algorithms/approx/Remez.h ./algorithms/approx/Zolotarev.h ./algorithms/CoarsenedMatrix.h ./algorithms/iterative/AdefGeneric.h ./algorithms/iterative/ConjugateGradient.h ./algorithms/iterative/ConjugateGradientMultiShift.h ./algorithms/iterative/ConjugateResidual.h ./algorithms/iterative/NormalEquations.h ./algorithms/iterative/PrecGeneralisedConjugateResidual.h ./algorithms/iterative/SchurRedBlack.h ./algorithms/LinearOperator.h ./algorithms/SparseMatrix.h ./Algorithms.h ./AlignedAllocator.h ./cartesian/Cartesian_base.h ./cartesian/Cartesian_full.h ./cartesian/Cartesian_red_black.h ./Cartesian.h ./communicator/Communicator_base.h ./Communicator.h ./cshift/Cshift_common.h ./cshift/Cshift_mpi.h ./cshift/Cshift_none.h ./Cshift.h ./Grid.h ./GridConfig.h ./lattice/Lattice_arith.h ./lattice/Lattice_base.h ./lattice/Lattice_comparison.h ./lattice/Lattice_comparison_utils.h ./lattice/Lattice_conformable.h ./lattice/Lattice_coordinate.h ./lattice/Lattice_ET.h ./lattice/Lattice_local.h ./lattice/Lattice_overload.h ./lattice/Lattice_peekpoke.h ./lattice/Lattice_reality.h ./lattice/Lattice_reduction.h ./lattice/Lattice_rng.h ./lattice/Lattice_trace.h ./lattice/Lattice_transfer.h ./lattice/Lattice_transpose.h ./lattice/Lattice_unary.h ./lattice/Lattice_where.h ./Lattice.h ./parallelIO/NerscIO.h ./qcd/action/Actions.h ./qcd/action/fermion/CayleyFermion5D.h ./qcd/action/fermion/ContinuedFractionFermion5D.h ./qcd/action/fermion/DomainWallFermion.h ./qcd/action/fermion/FermionOperator.h ./qcd/action/fermion/g5HermitianLinop.h ./qcd/action/fermion/MobiusFermion.h ./qcd/action/fermion/MobiusZolotarevFermion.h ./qcd/action/fermion/OverlapWilsonCayleyTanhFermion.h ./qcd/action/fermion/OverlapWilsonCayleyZolotarevFermion.h ./qcd/action/fermion/OverlapWilsonContfracTanhFermion.h ./qcd/action/fermion/OverlapWilsonContfracZolotarevFermion.h ./qcd/action/fermion/OverlapWilsonPartialFractionTanhFermion.h ./qcd/action/fermion/OverlapWilsonPartialFractionZolotarevFermion.h ./qcd/action/fermion/PartialFractionFermion5D.h ./qcd/action/fermion/ScaledShamirFermion.h ./qcd/action/fermion/ShamirZolotarevFermion.h ./qcd/action/fermion/WilsonCompressor.h ./qcd/action/fermion/WilsonFermion.h ./qcd/action/fermion/WilsonFermion5D.h ./qcd/action/fermion/WilsonKernels.h ./qcd/action/gauge/GaugeActionBase.h ./qcd/action/gauge/WilsonGaugeAction.h ./qcd/QCD.h ./qcd/spin/Dirac.h ./qcd/spin/TwoSpinor.h ./qcd/utils/CovariantCshift.h ./qcd/utils/LinalgUtils.h ./qcd/utils/SpaceTimeGrid.h ./qcd/utils/SUn.h ./qcd/utils/WilsonLoops.h ./simd/Grid_avx.h ./simd/Grid_avx512.h ./simd/Grid_empty.h ./simd/Grid_neon.h ./simd/Grid_qpx.h ./simd/Grid_sse4.h ./simd/Grid_vector_types.h ./simd/Grid_vector_unops.h ./Simd.h ./stencil/Lebesgue.h ./Stencil.h ./tensors/Tensor_arith.h ./tensors/Tensor_arith_add.h ./tensors/Tensor_arith_mac.h ./tensors/Tensor_arith_mul.h ./tensors/Tensor_arith_scalar.h ./tensors/Tensor_arith_sub.h ./tensors/Tensor_class.h ./tensors/Tensor_determinant.h ./tensors/Tensor_exp.h ./tensors/Tensor_extract_merge.h ./tensors/Tensor_inner.h ./tensors/Tensor_logical.h ./tensors/Tensor_outer.h ./tensors/Tensor_peek.h ./tensors/Tensor_poke.h ./tensors/Tensor_reality.h ./tensors/Tensor_Ta.h ./tensors/Tensor_trace.h ./tensors/Tensor_traits.h ./tensors/Tensor_transpose.h ./tensors/Tensor_unary.h ./Tensors.h ./Threads.h
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HFILES=./algorithms/approx/bigfloat.h ./algorithms/approx/bigfloat_double.h ./algorithms/approx/Chebyshev.h ./algorithms/approx/MultiShiftFunction.h ./algorithms/approx/Remez.h ./algorithms/approx/Zolotarev.h ./algorithms/CoarsenedMatrix.h ./algorithms/iterative/AdefGeneric.h ./algorithms/iterative/BfmHDCG.h ./algorithms/iterative/ConjugateGradient.h ./algorithms/iterative/ConjugateGradientMultiShift.h ./algorithms/iterative/ConjugateResidual.h ./algorithms/iterative/NormalEquations.h ./algorithms/iterative/PrecGeneralisedConjugateResidual.h ./algorithms/iterative/SchurRedBlack.h ./algorithms/LinearOperator.h ./algorithms/Preconditioner.h ./algorithms/SparseMatrix.h ./Algorithms.h ./AlignedAllocator.h ./cartesian/Cartesian_base.h ./cartesian/Cartesian_full.h ./cartesian/Cartesian_red_black.h ./Cartesian.h ./communicator/Communicator_base.h ./Communicator.h ./cshift/Cshift_common.h ./cshift/Cshift_mpi.h ./cshift/Cshift_none.h ./Cshift.h ./Grid.h ./GridConfig.h ./lattice/Lattice_arith.h ./lattice/Lattice_base.h ./lattice/Lattice_comparison.h ./lattice/Lattice_comparison_utils.h ./lattice/Lattice_conformable.h ./lattice/Lattice_coordinate.h ./lattice/Lattice_ET.h ./lattice/Lattice_local.h ./lattice/Lattice_overload.h ./lattice/Lattice_peekpoke.h ./lattice/Lattice_reality.h ./lattice/Lattice_reduction.h ./lattice/Lattice_rng.h ./lattice/Lattice_trace.h ./lattice/Lattice_transfer.h ./lattice/Lattice_transpose.h ./lattice/Lattice_unary.h ./lattice/Lattice_where.h ./Lattice.h ./parallelIO/NerscIO.h ./qcd/action/Actions.h ./qcd/action/DiffAction.h ./qcd/action/fermion/CayleyFermion5D.h ./qcd/action/fermion/ContinuedFractionFermion5D.h ./qcd/action/fermion/DomainWallFermion.h ./qcd/action/fermion/FermionOperator.h ./qcd/action/fermion/g5HermitianLinop.h ./qcd/action/fermion/MobiusFermion.h ./qcd/action/fermion/MobiusZolotarevFermion.h ./qcd/action/fermion/OverlapWilsonCayleyTanhFermion.h ./qcd/action/fermion/OverlapWilsonCayleyZolotarevFermion.h ./qcd/action/fermion/OverlapWilsonContfracTanhFermion.h ./qcd/action/fermion/OverlapWilsonContfracZolotarevFermion.h ./qcd/action/fermion/OverlapWilsonPartialFractionTanhFermion.h ./qcd/action/fermion/OverlapWilsonPartialFractionZolotarevFermion.h ./qcd/action/fermion/PartialFractionFermion5D.h ./qcd/action/fermion/ScaledShamirFermion.h ./qcd/action/fermion/ShamirZolotarevFermion.h ./qcd/action/fermion/WilsonCompressor.h ./qcd/action/fermion/WilsonFermion.h ./qcd/action/fermion/WilsonFermion5D.h ./qcd/action/fermion/WilsonKernels.h ./qcd/action/gauge/GaugeActionBase.h ./qcd/action/gauge/WilsonGaugeAction.h ./qcd/QCD.h ./qcd/spin/Dirac.h ./qcd/spin/TwoSpinor.h ./qcd/utils/CovariantCshift.h ./qcd/utils/LinalgUtils.h ./qcd/utils/SpaceTimeGrid.h ./qcd/utils/SUn.h ./qcd/utils/WilsonLoops.h ./simd/Grid_avx.h ./simd/Grid_avx512.h ./simd/Grid_empty.h ./simd/Grid_neon.h ./simd/Grid_qpx.h ./simd/Grid_sse4.h ./simd/Grid_vector_types.h ./simd/Grid_vector_unops.h ./Simd.h ./stencil/Lebesgue.h ./Stencil.h ./tensors/Tensor_arith.h ./tensors/Tensor_arith_add.h ./tensors/Tensor_arith_mac.h ./tensors/Tensor_arith_mul.h ./tensors/Tensor_arith_scalar.h ./tensors/Tensor_arith_sub.h ./tensors/Tensor_class.h ./tensors/Tensor_determinant.h ./tensors/Tensor_exp.h ./tensors/Tensor_extract_merge.h ./tensors/Tensor_inner.h ./tensors/Tensor_logical.h ./tensors/Tensor_outer.h ./tensors/Tensor_peek.h ./tensors/Tensor_poke.h ./tensors/Tensor_reality.h ./tensors/Tensor_Ta.h ./tensors/Tensor_trace.h ./tensors/Tensor_traits.h ./tensors/Tensor_transpose.h ./tensors/Tensor_unary.h ./Tensors.h ./Threads.h
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CCFILES=./algorithms/approx/MultiShiftFunction.cc ./algorithms/approx/Remez.cc ./algorithms/approx/Zolotarev.cc ./GridInit.cc ./qcd/action/fermion/CayleyFermion5D.cc ./qcd/action/fermion/ContinuedFractionFermion5D.cc ./qcd/action/fermion/PartialFractionFermion5D.cc ./qcd/action/fermion/WilsonFermion.cc ./qcd/action/fermion/WilsonFermion5D.cc ./qcd/action/fermion/WilsonKernels.cc ./qcd/action/fermion/WilsonKernelsHand.cc ./qcd/spin/Dirac.cc ./qcd/utils/SpaceTimeGrid.cc ./stencil/Lebesgue.cc ./stencil/Stencil_common.cc
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@ -85,10 +85,6 @@ namespace Grid {
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void Orthogonalise(void){
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CoarseScalar InnerProd(CoarseGrid);
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blockOrthogonalise(InnerProd,subspace);
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#if 1
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// CheckOrthogonal();
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#endif
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}
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void CheckOrthogonal(void){
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CoarseVector iProj(CoarseGrid);
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@ -125,7 +121,7 @@ namespace Grid {
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RealD scale;
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ConjugateGradient<FineField> CG(1.0e-4,10000);
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ConjugateGradient<FineField> CG(1.0e-3,10000);
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FineField noise(FineGrid);
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FineField Mn(FineGrid);
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@ -15,7 +15,7 @@ public:
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Integer MaxIterations;
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int verbose;
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ConjugateGradient(RealD tol,Integer maxit) : Tolerance(tol), MaxIterations(maxit) {
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verbose=0;
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verbose=1;
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};
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@ -48,11 +48,11 @@ namespace Grid {
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if(cp<rsq) {
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Linop.HermOp(psi,r);
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axpy(r,-1.0,src,r);
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RealD true_resid = norm2(r);
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RealD tr = norm2(r);
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std::cout<<"PrecGeneralisedConjugateResidual: Converged on iteration " <<steps
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<< " computed residual "<<sqrt(cp/ssq)
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<< " true residual "<<true_resid
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<< " target " <<Tolerance <<std::endl;
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<< " true residual " <<sqrt(tr/ssq)
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<< " target " <<Tolerance <<std::endl;
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return;
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}
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@ -87,8 +87,8 @@ void WilsonFermion5D::DhopDir(const LatticeFermion &in, LatticeFermion &out,int
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{
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int dir = dir5-1; // Maps to the ordering above in "directions" that is passed to stencil
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// we drop off the innermost fifth dimension
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assert( (disp==1)||(disp==-1) );
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assert( (dir>=0)&&(dir<4) ); //must do x,y,z or t;
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// assert( (disp==1)||(disp==-1) );
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// assert( (dir>=0)&&(dir<4) ); //must do x,y,z or t;
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WilsonCompressor compressor(DaggerNo);
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Stencil.HaloExchange<vSpinColourVector,vHalfSpinColourVector,WilsonCompressor>(in,comm_buf,compressor);
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@ -100,7 +100,7 @@ void WilsonFermion5D::DhopDir(const LatticeFermion &in, LatticeFermion &out,int
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assert(dirdisp<=7);
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assert(dirdisp>=0);
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PARALLEL_FOR_LOOP
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//PARALLEL_FOR_LOOP
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for(int ss=0;ss<Umu._grid->oSites();ss++){
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for(int s=0;s<Ls;s++){
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int sU=ss;
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@ -114,7 +114,7 @@ void WilsonFermion5D::DhopInternal(CartesianStencil & st, LebesgueOrder &lo,
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LatticeDoubledGaugeField & U,
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const LatticeFermion &in, LatticeFermion &out,int dag)
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{
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assert((dag==DaggerNo) ||(dag==DaggerYes));
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// assert((dag==DaggerNo) ||(dag==DaggerYes));
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WilsonCompressor compressor(dag);
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@ -127,29 +127,32 @@ void WilsonFermion5D::DhopInternal(CartesianStencil & st, LebesgueOrder &lo,
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// - 8 linear access unit stride streams per thread for Fermion for hw prefetchable.
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if ( dag == DaggerYes ) {
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if( HandOptDslash ) {
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PARALLEL_FOR_LOOP
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#pragma parallel for
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for(int ss=0;ss<U._grid->oSites();ss++){
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for(int s=0;s<Ls;s++){
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//int sU=lo.Reorder(ss);
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int sU=ss;
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int sF = s+Ls*sU;
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DiracOptHand::DhopSiteDag(st,U,comm_buf,sF,sU,in,out);
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{
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for(int s=0;s<Ls;s++){
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int sU=ss;
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int sF = s+Ls*sU;
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DiracOptHand::DhopSiteDag(st,U,comm_buf,sF,sU,in,out);
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}
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}
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}
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} else {
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PARALLEL_FOR_LOOP
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#pragma parallel for
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for(int ss=0;ss<U._grid->oSites();ss++){
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for(int s=0;s<Ls;s++){
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// int sU=lo.Reorder(ss);
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int sU=ss;
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int sF = s+Ls*sU;
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DiracOpt::DhopSiteDag(st,U,comm_buf,sF,sU,in,out);
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{
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int sd;
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for(sd=0;sd<Ls;sd++){
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int sU=ss;
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int sF = sd+Ls*sU;
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DiracOpt::DhopSiteDag(st,U,comm_buf,sF,sU,in,out);
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}
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}
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}
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}
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} else {
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if( HandOptDslash ) {
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PARALLEL_FOR_LOOP
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#pragma parallel for
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for(int ss=0;ss<U._grid->oSites();ss++){
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for(int s=0;s<Ls;s++){
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// int sU=lo.Reorder(ss);
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@ -160,7 +163,7 @@ PARALLEL_FOR_LOOP
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}
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} else {
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PARALLEL_FOR_LOOP
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#pragma parallel for
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for(int ss=0;ss<U._grid->oSites();ss++){
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for(int s=0;s<Ls;s++){
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// int sU=lo.Reorder(ss);
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@ -166,7 +166,7 @@ public:
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su2SubGroupIndex(i0,i1,su2_index);
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PARALLEL_FOR_LOOP
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for(int ss=0;ss!=grid->oSites();ss++){
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for(int ss=0;ss<grid->oSites();ss++){
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subgroup._odata[ss]()()(0,0) = source._odata[ss]()()(i0,i0);
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subgroup._odata[ss]()()(0,1) = source._odata[ss]()()(i0,i1);
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subgroup._odata[ss]()()(1,0) = source._odata[ss]()()(i1,i0);
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@ -201,7 +201,7 @@ PARALLEL_FOR_LOOP
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dest = 1.0; // start out with identity
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PARALLEL_FOR_LOOP
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for(int ss=0;ss!=grid->oSites();ss++){
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for(int ss=0;ss<grid->oSites();ss++){
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dest._odata[ss]()()(i0,i0) = subgroup._odata[ss]()()(0,0);
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dest._odata[ss]()()(i0,i1) = subgroup._odata[ss]()()(0,1);
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dest._odata[ss]()()(i1,i0) = subgroup._odata[ss]()()(1,0);
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@ -1,15 +1,11 @@
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bin_PROGRAMS = Test_GaugeAction Test_Metropolis Test_cayley_cg Test_cayley_coarsen_support Test_cayley_even_odd Test_cayley_ldop_cg Test_cayley_ldop_cr Test_cf_coarsen_support Test_cf_cr_unprec Test_contfrac_cg Test_contfrac_even_odd Test_cshift Test_cshift_red_black Test_dwf_cg_prec Test_dwf_cg_schur Test_dwf_cg_unprec Test_dwf_cr_unprec Test_dwf_even_odd Test_dwf_fpgcr Test_gamma Test_lie_generators Test_main Test_multishift_sqrt Test_nersc_io Test_quenched_update Test_remez Test_rng Test_rng_fixed Test_simd Test_stencil Test_wilson_cg_prec Test_wilson_cg_schur Test_wilson_cg_unprec Test_wilson_cr_unprec Test_wilson_even_odd
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bin_PROGRAMS = Test_GaugeAction Test_cayley_cg Test_cayley_coarsen_support Test_cayley_even_odd Test_cayley_ldop_cr Test_cf_coarsen_support Test_cf_cr_unprec Test_contfrac_cg Test_contfrac_even_odd Test_cshift Test_cshift_red_black Test_dwf_cg_prec Test_dwf_cg_schur Test_dwf_cg_unprec Test_dwf_cr_unprec Test_dwf_even_odd Test_dwf_fpgcr Test_dwf_hdcr Test_gamma Test_lie_generators Test_main Test_multishift_sqrt Test_nersc_io Test_quenched_update Test_remez Test_rng Test_rng_fixed Test_simd Test_stencil Test_wilson_cg_prec Test_wilson_cg_schur Test_wilson_cg_unprec Test_wilson_cr_unprec Test_wilson_even_odd
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Test_GaugeAction_SOURCES=Test_GaugeAction.cc
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Test_GaugeAction_LDADD=-lGrid
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Test_Metropolis_SOURCES=Test_Metropolis.cc
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Test_Metropolis_LDADD=-lGrid
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Test_cayley_cg_SOURCES=Test_cayley_cg.cc
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Test_cayley_cg_LDADD=-lGrid
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@ -22,10 +18,6 @@ Test_cayley_even_odd_SOURCES=Test_cayley_even_odd.cc
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Test_cayley_even_odd_LDADD=-lGrid
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Test_cayley_ldop_cg_SOURCES=Test_cayley_ldop_cg.cc
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Test_cayley_ldop_cg_LDADD=-lGrid
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Test_cayley_ldop_cr_SOURCES=Test_cayley_ldop_cr.cc
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Test_cayley_ldop_cr_LDADD=-lGrid
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@ -78,6 +70,10 @@ Test_dwf_fpgcr_SOURCES=Test_dwf_fpgcr.cc
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Test_dwf_fpgcr_LDADD=-lGrid
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Test_dwf_hdcr_SOURCES=Test_dwf_hdcr.cc
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Test_dwf_hdcr_LDADD=-lGrid
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Test_gamma_SOURCES=Test_gamma.cc
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Test_gamma_LDADD=-lGrid
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@ -1,2 +0,0 @@
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f(x) = 6.81384+(-2.34645e-06/(x+0.000228091))+(-1.51593e-05/(x+0.00112084))+(-6.89254e-05/(x+0.003496))+(-0.000288983/(x+0.00954309))+(-0.00119277/(x+0.024928))+(-0.0050183/(x+0.0646627))+(-0.0226449/(x+0.171576))+(-0.123767/(x+0.491792))+(-1.1705/(x+1.78667))+(-102.992/(x+18.4866));
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f(x) = 0.14676+(0.00952992/(x+5.40933e-05))+(0.0115952/(x+0.000559699))+(0.0161824/(x+0.00203338))+(0.0243252/(x+0.00582831))+(0.0379533/(x+0.0154649))+(0.060699/(x+0.0401156))+(0.100345/(x+0.104788))+(0.178335/(x+0.286042))+(0.381586/(x+0.892189))+(1.42625/(x+4.38422));
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@ -1,155 +0,0 @@
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#include <Grid.h>
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#include <qcd/utils/WilsonLoops.h>
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#include <qcd/utils/SUn.h>
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using namespace std;
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using namespace Grid;
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using namespace Grid::QCD;
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template<class d>
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struct scal {
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d internal;
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};
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Gamma::GammaMatrix Gmu [] = {
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Gamma::GammaX,
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Gamma::GammaY,
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Gamma::GammaZ,
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Gamma::GammaT
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};
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double lowpass(double x)
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{
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return pow(x*x+1.0,-2);
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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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Chebyshev<LatticeFermion> filter(-150.0, 150.0,16, lowpass);
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ofstream csv(std::string("filter.dat"),std::ios::out|std::ios::trunc);
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filter.csv(csv);
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csv.close();
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const int Ls=8;
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|
||||
GridCartesian * UGrid = SpaceTimeGrid::makeFourDimGrid(GridDefaultLatt(), GridDefaultSimd(Nd,vComplexF::Nsimd()),GridDefaultMpi());
|
||||
GridRedBlackCartesian * UrbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(UGrid);
|
||||
|
||||
GridCartesian * FGrid = SpaceTimeGrid::makeFiveDimGrid(Ls,UGrid);
|
||||
GridRedBlackCartesian * FrbGrid = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,UGrid);
|
||||
|
||||
// Construct a coarsened grid
|
||||
std::vector<int> clatt = GridDefaultLatt();
|
||||
for(int d=0;d<clatt.size();d++){
|
||||
clatt[d] = clatt[d]/2;
|
||||
}
|
||||
GridCartesian *Coarse4d = SpaceTimeGrid::makeFourDimGrid(clatt, GridDefaultSimd(Nd,vComplexF::Nsimd()),GridDefaultMpi());;
|
||||
GridCartesian *Coarse5d = SpaceTimeGrid::makeFiveDimGrid(1,Coarse4d);
|
||||
|
||||
std::vector<int> seeds4({1,2,3,4});
|
||||
std::vector<int> seeds5({5,6,7,8});
|
||||
std::vector<int> cseeds({5,6,7,8});
|
||||
GridParallelRNG RNG5(FGrid); RNG5.SeedFixedIntegers(seeds5);
|
||||
GridParallelRNG RNG4(UGrid); RNG4.SeedFixedIntegers(seeds4);
|
||||
GridParallelRNG CRNG(Coarse5d);CRNG.SeedFixedIntegers(cseeds);
|
||||
|
||||
LatticeFermion src(FGrid); gaussian(RNG5,src);
|
||||
LatticeFermion result(FGrid); result=zero;
|
||||
LatticeFermion ref(FGrid); ref=zero;
|
||||
LatticeFermion tmp(FGrid);
|
||||
LatticeFermion err(FGrid);
|
||||
LatticeGaugeField Umu(UGrid);
|
||||
|
||||
|
||||
|
||||
//gaussian(RNG4,Umu);
|
||||
//random(RNG4,Umu);
|
||||
|
||||
NerscField header;
|
||||
std::string file("./ckpoint_lat.400");
|
||||
readNerscConfiguration(Umu,header,file);
|
||||
// SU3::ColdConfiguration(RNG4,Umu);
|
||||
// SU3::TepidConfiguration(RNG4,Umu);
|
||||
// SU3::HotConfiguration(RNG4,Umu);
|
||||
// Umu=zero;
|
||||
|
||||
#if 0
|
||||
LatticeColourMatrix U(UGrid);
|
||||
for(int nn=0;nn<Nd;nn++){
|
||||
U=peekIndex<LorentzIndex>(Umu,nn);
|
||||
U=U*adj(U)-1.0;
|
||||
std::cout<<"SU3 test "<<norm2(U)<<std::endl;
|
||||
}
|
||||
#endif
|
||||
RealD mass=0.1;
|
||||
RealD M5=1.5;
|
||||
|
||||
DomainWallFermion Ddwf(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5);
|
||||
Gamma5R5HermitianLinearOperator<DomainWallFermion,LatticeFermion> HermIndefOp(Ddwf);
|
||||
|
||||
const int nbasis = 8;
|
||||
|
||||
#if 0
|
||||
std::vector<LatticeFermion> subspace(nbasis,FGrid);
|
||||
LatticeFermion noise(FGrid);
|
||||
LatticeFermion ms(FGrid);
|
||||
for(int b=0;b<nbasis;b++){
|
||||
|
||||
gaussian(RNG5,noise);
|
||||
RealD scale = pow(norm2(noise),-0.5);
|
||||
noise=noise*scale;
|
||||
|
||||
HermIndefOp.Op(noise,ms); std::cout << "Noise "<<b<<" Ms "<<norm2(ms)<< " "<< norm2(noise)<<std::endl;
|
||||
|
||||
// filter(HermIndefOp,noise,subspace[b]);
|
||||
// inverse iteration
|
||||
MdagMLinearOperator<DomainWallFermion,LatticeFermion> HermDefOp(Ddwf);
|
||||
ConjugateGradient<LatticeFermion> CG(1.0e-4,10000);
|
||||
|
||||
for(int i=0;i<1;i++){
|
||||
|
||||
CG(HermDefOp,noise,subspace[b]);
|
||||
noise = subspace[b];
|
||||
|
||||
scale = pow(norm2(noise),-0.5);
|
||||
noise=noise*scale;
|
||||
HermDefOp.Op(noise,ms); std::cout << "filt "<<b<<" <u|H|u> "<<norm2(ms)<< " "<< norm2(noise)<<std::endl;
|
||||
}
|
||||
|
||||
subspace[b] = noise;
|
||||
HermIndefOp.Op(subspace[b],ms); std::cout << "Filtered "<<b<<" Ms "<<norm2(ms)<< " "<<norm2(subspace[b]) <<std::endl;
|
||||
|
||||
}
|
||||
std::cout << "Computed randoms"<< std::endl;
|
||||
#else
|
||||
std::cout<<"Calling Aggregation class" <<std::endl;
|
||||
MdagMLinearOperator<DomainWallFermion,LatticeFermion> HermDefOp(Ddwf);
|
||||
typedef Aggregation<vSpinColourVector,vTComplex,nbasis> Subspace;
|
||||
Subspace Aggregates(Coarse5d,FGrid);
|
||||
Aggregates.CreateSubspace(RNG5,HermDefOp);
|
||||
std::cout << "Called aggregation class"<< std::endl;
|
||||
#endif
|
||||
|
||||
|
||||
typedef CoarsenedMatrix<vSpinColourVector,vTComplex,nbasis> LittleDiracOperator;
|
||||
typedef LittleDiracOperator::CoarseVector CoarseVector;
|
||||
|
||||
LittleDiracOperator LittleDiracOp(*Coarse5d);
|
||||
LittleDiracOp.CoarsenOperator(FGrid,HermIndefOp,Aggregates);
|
||||
|
||||
CoarseVector c_src (Coarse5d);
|
||||
CoarseVector c_res (Coarse5d);
|
||||
gaussian(CRNG,c_src);
|
||||
c_res=zero;
|
||||
|
||||
std::cout << "Solving CG on coarse space "<< std::endl;
|
||||
MdagMLinearOperator<LittleDiracOperator,CoarseVector> PosdefLdop(LittleDiracOp);
|
||||
ConjugateGradient<CoarseVector> CG(1.0e-6,10000);
|
||||
CG(PosdefLdop,c_src,c_res);
|
||||
|
||||
std::cout << "Done "<< std::endl;
|
||||
Grid_finalize();
|
||||
}
|
||||
@ -1,38 +1,13 @@
|
||||
#include <Grid.h>
|
||||
#include <qcd/utils/WilsonLoops.h>
|
||||
#include <qcd/utils/SUn.h>
|
||||
|
||||
using namespace std;
|
||||
using namespace Grid;
|
||||
using namespace Grid::QCD;
|
||||
|
||||
|
||||
template<class d>
|
||||
struct scal {
|
||||
d internal;
|
||||
};
|
||||
|
||||
Gamma::GammaMatrix Gmu [] = {
|
||||
Gamma::GammaX,
|
||||
Gamma::GammaY,
|
||||
Gamma::GammaZ,
|
||||
Gamma::GammaT
|
||||
};
|
||||
|
||||
double lowpass(double x)
|
||||
{
|
||||
return pow(x*x+1.0,-2);
|
||||
}
|
||||
|
||||
int main (int argc, char ** argv)
|
||||
{
|
||||
Grid_init(&argc,&argv);
|
||||
|
||||
Chebyshev<LatticeFermion> filter(-150.0, 150.0,16, lowpass);
|
||||
ofstream csv(std::string("filter.dat"),std::ios::out|std::ios::trunc);
|
||||
filter.csv(csv);
|
||||
csv.close();
|
||||
|
||||
const int Ls=8;
|
||||
|
||||
GridCartesian * UGrid = SpaceTimeGrid::makeFourDimGrid(GridDefaultLatt(), GridDefaultSimd(Nd,vComplexF::Nsimd()),GridDefaultMpi());
|
||||
@ -41,7 +16,9 @@ int main (int argc, char ** argv)
|
||||
GridCartesian * FGrid = SpaceTimeGrid::makeFiveDimGrid(Ls,UGrid);
|
||||
GridRedBlackCartesian * FrbGrid = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,UGrid);
|
||||
|
||||
// Construct a coarsened grid
|
||||
///////////////////////////////////////////////////
|
||||
// Construct a coarsened grid; utility for this?
|
||||
///////////////////////////////////////////////////
|
||||
std::vector<int> clatt = GridDefaultLatt();
|
||||
for(int d=0;d<clatt.size();d++){
|
||||
clatt[d] = clatt[d]/2;
|
||||
@ -63,80 +40,38 @@ int main (int argc, char ** argv)
|
||||
LatticeFermion err(FGrid);
|
||||
LatticeGaugeField Umu(UGrid);
|
||||
|
||||
|
||||
|
||||
//gaussian(RNG4,Umu);
|
||||
//random(RNG4,Umu);
|
||||
|
||||
NerscField header;
|
||||
std::string file("./ckpoint_lat.400");
|
||||
readNerscConfiguration(Umu,header,file);
|
||||
|
||||
// SU3::ColdConfiguration(RNG4,Umu);
|
||||
// SU3::TepidConfiguration(RNG4,Umu);
|
||||
// SU3::HotConfiguration(RNG4,Umu);
|
||||
// Umu=zero;
|
||||
|
||||
#if 0
|
||||
LatticeColourMatrix U(UGrid);
|
||||
for(int nn=0;nn<Nd;nn++){
|
||||
U=peekIndex<LorentzIndex>(Umu,nn);
|
||||
U=U*adj(U)-1.0;
|
||||
std::cout<<"SU3 test "<<norm2(U)<<std::endl;
|
||||
}
|
||||
#endif
|
||||
RealD mass=0.1;
|
||||
RealD M5=1.5;
|
||||
|
||||
std::cout << "**************************************************"<< std::endl;
|
||||
std::cout << "Building g5R5 hermitian DWF operator" <<std::endl;
|
||||
std::cout << "**************************************************"<< std::endl;
|
||||
DomainWallFermion Ddwf(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5);
|
||||
Gamma5R5HermitianLinearOperator<DomainWallFermion,LatticeFermion> HermIndefOp(Ddwf);
|
||||
|
||||
const int nbasis = 8;
|
||||
|
||||
#if 0
|
||||
std::vector<LatticeFermion> subspace(nbasis,FGrid);
|
||||
LatticeFermion noise(FGrid);
|
||||
LatticeFermion ms(FGrid);
|
||||
for(int b=0;b<nbasis;b++){
|
||||
typedef Aggregation<vSpinColourVector,vTComplex,nbasis> Subspace;
|
||||
typedef CoarsenedMatrix<vSpinColourVector,vTComplex,nbasis> LittleDiracOperator;
|
||||
typedef LittleDiracOperator::CoarseVector CoarseVector;
|
||||
|
||||
gaussian(RNG5,noise);
|
||||
RealD scale = pow(norm2(noise),-0.5);
|
||||
noise=noise*scale;
|
||||
|
||||
HermIndefOp.Op(noise,ms); std::cout << "Noise "<<b<<" Ms "<<norm2(ms)<< " "<< norm2(noise)<<std::endl;
|
||||
|
||||
// filter(HermIndefOp,noise,subspace[b]);
|
||||
// inverse iteration
|
||||
MdagMLinearOperator<DomainWallFermion,LatticeFermion> HermDefOp(Ddwf);
|
||||
ConjugateGradient<LatticeFermion> CG(1.0e-4,10000);
|
||||
|
||||
for(int i=0;i<1;i++){
|
||||
|
||||
CG(HermDefOp,noise,subspace[b]);
|
||||
noise = subspace[b];
|
||||
|
||||
scale = pow(norm2(noise),-0.5);
|
||||
noise=noise*scale;
|
||||
HermDefOp.Op(noise,ms); std::cout << "filt "<<b<<" <u|H|u> "<<norm2(ms)<< " "<< norm2(noise)<<std::endl;
|
||||
}
|
||||
|
||||
subspace[b] = noise;
|
||||
HermIndefOp.Op(subspace[b],ms); std::cout << "Filtered "<<b<<" Ms "<<norm2(ms)<< " "<<norm2(subspace[b]) <<std::endl;
|
||||
|
||||
}
|
||||
std::cout << "Computed randoms"<< std::endl;
|
||||
#else
|
||||
std::cout<<"Calling Aggregation class" <<std::endl;
|
||||
std::cout << "**************************************************"<< std::endl;
|
||||
std::cout << "Calling Aggregation class to build subspace" <<std::endl;
|
||||
std::cout << "**************************************************"<< std::endl;
|
||||
MdagMLinearOperator<DomainWallFermion,LatticeFermion> HermDefOp(Ddwf);
|
||||
typedef Aggregation<vSpinColourVector,vTComplex,nbasis> Subspace;
|
||||
Subspace Aggregates(Coarse5d,FGrid);
|
||||
Aggregates.CreateSubspace(RNG5,HermDefOp);
|
||||
std::cout << "Called aggregation class"<< std::endl;
|
||||
#endif
|
||||
|
||||
|
||||
typedef CoarsenedMatrix<vSpinColourVector,vTComplex,nbasis> LittleDiracOperator;
|
||||
typedef LittleDiracOperator::CoarseVector CoarseVector;
|
||||
|
||||
LittleDiracOperator LittleDiracOp(*Coarse5d);
|
||||
LittleDiracOp.CoarsenOperator(FGrid,HermIndefOp,Aggregates);
|
||||
|
||||
@ -145,18 +80,22 @@ int main (int argc, char ** argv)
|
||||
gaussian(CRNG,c_src);
|
||||
c_res=zero;
|
||||
|
||||
|
||||
std::cout << "Solving CG on coarse space "<< std::endl;
|
||||
std::cout << "**************************************************"<< std::endl;
|
||||
std::cout << "Solving mdagm-CG on coarse space "<< std::endl;
|
||||
std::cout << "**************************************************"<< std::endl;
|
||||
MdagMLinearOperator<LittleDiracOperator,CoarseVector> PosdefLdop(LittleDiracOp);
|
||||
ConjugateGradient<CoarseVector> CG(1.0e-6,10000);
|
||||
CG(PosdefLdop,c_src,c_res);
|
||||
|
||||
|
||||
std::cout << "Solving MCR on coarse space "<< std::endl;
|
||||
std::cout << "**************************************************"<< std::endl;
|
||||
std::cout << "Solving indef-MCR on coarse space "<< std::endl;
|
||||
std::cout << "**************************************************"<< std::endl;
|
||||
HermitianLinearOperator<LittleDiracOperator,CoarseVector> HermIndefLdop(LittleDiracOp);
|
||||
ConjugateResidual<CoarseVector> MCR(1.0e-6,10000);
|
||||
MCR(HermIndefLdop,c_src,c_res);
|
||||
|
||||
std::cout << "**************************************************"<< std::endl;
|
||||
std::cout << "Done "<< std::endl;
|
||||
std::cout << "**************************************************"<< std::endl;
|
||||
Grid_finalize();
|
||||
}
|
||||
|
||||
188
tests/Test_dwf_hdcr.cc
Normal file
188
tests/Test_dwf_hdcr.cc
Normal file
@ -0,0 +1,188 @@
|
||||
#include <Grid.h>
|
||||
#include <algorithms/iterative/PrecGeneralisedConjugateResidual.h>
|
||||
|
||||
using namespace std;
|
||||
using namespace Grid;
|
||||
using namespace Grid::QCD;
|
||||
|
||||
template<class Fobj,class CComplex,int nbasis>
|
||||
class MultiGridPreconditioner : public LinearFunction< Lattice<Fobj> > {
|
||||
public:
|
||||
|
||||
typedef Aggregation<Fobj,CComplex,nbasis> Aggregates;
|
||||
typedef CoarsenedMatrix<Fobj,CComplex,nbasis> CoarseOperator;
|
||||
|
||||
typedef typename Aggregation<Fobj,CComplex,nbasis>::siteVector siteVector;
|
||||
typedef typename Aggregation<Fobj,CComplex,nbasis>::CoarseScalar CoarseScalar;
|
||||
typedef typename Aggregation<Fobj,CComplex,nbasis>::CoarseVector CoarseVector;
|
||||
typedef typename Aggregation<Fobj,CComplex,nbasis>::CoarseMatrix CoarseMatrix;
|
||||
typedef typename Aggregation<Fobj,CComplex,nbasis>::FineField FineField;
|
||||
typedef LinearOperatorBase<FineField> FineOperator;
|
||||
|
||||
Aggregates & _Aggregates;
|
||||
CoarseOperator & _CoarseOperator;
|
||||
FineOperator & _FineOperator;
|
||||
|
||||
// Constructor
|
||||
MultiGridPreconditioner(Aggregates &Agg, CoarseOperator &Coarse, FineOperator &Fine)
|
||||
: _Aggregates(Agg),
|
||||
_CoarseOperator(Coarse),
|
||||
_FineOperator(Fine)
|
||||
{
|
||||
}
|
||||
|
||||
void operator()(const FineField &in, FineField & out) {
|
||||
|
||||
FineField Min(in._grid);
|
||||
|
||||
CoarseVector Csrc(_CoarseOperator.Grid());
|
||||
CoarseVector Ctmp(_CoarseOperator.Grid());
|
||||
CoarseVector Csol(_CoarseOperator.Grid());
|
||||
|
||||
// Monitor completeness of low mode space
|
||||
_Aggregates.ProjectToSubspace (Csrc,in);
|
||||
_Aggregates.PromoteFromSubspace(Csrc,out);
|
||||
std::cout<<"Completeness: "<<std::sqrt(norm2(out)/norm2(in))<<std::endl;
|
||||
|
||||
ConjugateResidual<FineField> MCR(1.0e-2,1000);
|
||||
ConjugateGradient<CoarseVector> CG(1.0e-2,10000);
|
||||
|
||||
// [PTM+Q] in = [1 - Q A] M in + Q in = Min + Q [ in -A Min]
|
||||
// Smoothing step, followed by coarse grid correction
|
||||
|
||||
MCR(_FineOperator,in,Min);
|
||||
_FineOperator.Op(Min,out);
|
||||
out = in -out; // out = in - A Min
|
||||
|
||||
MdagMLinearOperator<CoarseOperator,CoarseVector> MdagMOp(_CoarseOperator);
|
||||
HermitianLinearOperator<CoarseOperator,CoarseVector> HermOp(_CoarseOperator);
|
||||
Csol=zero;
|
||||
_Aggregates.ProjectToSubspace (Csrc,out);
|
||||
HermOp.AdjOp(Csrc,Ctmp);// Normal equations
|
||||
CG(MdagMOp ,Ctmp,Csol);
|
||||
_Aggregates.PromoteFromSubspace(Csol,out);
|
||||
|
||||
out = Min + out;;
|
||||
}
|
||||
|
||||
};
|
||||
|
||||
int main (int argc, char ** argv)
|
||||
{
|
||||
Grid_init(&argc,&argv);
|
||||
|
||||
const int Ls=8;
|
||||
|
||||
GridCartesian * UGrid = SpaceTimeGrid::makeFourDimGrid(GridDefaultLatt(), GridDefaultSimd(Nd,vComplexF::Nsimd()),GridDefaultMpi());
|
||||
GridRedBlackCartesian * UrbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(UGrid);
|
||||
|
||||
GridCartesian * FGrid = SpaceTimeGrid::makeFiveDimGrid(Ls,UGrid);
|
||||
GridRedBlackCartesian * FrbGrid = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,UGrid);
|
||||
|
||||
///////////////////////////////////////////////////
|
||||
// Construct a coarsened grid; utility for this?
|
||||
///////////////////////////////////////////////////
|
||||
std::vector<int> clatt = GridDefaultLatt();
|
||||
for(int d=0;d<clatt.size();d++){
|
||||
clatt[d] = clatt[d]/4;
|
||||
}
|
||||
GridCartesian *Coarse4d = SpaceTimeGrid::makeFourDimGrid(clatt, GridDefaultSimd(Nd,vComplexF::Nsimd()),GridDefaultMpi());;
|
||||
GridCartesian *Coarse5d = SpaceTimeGrid::makeFiveDimGrid(1,Coarse4d);
|
||||
|
||||
std::vector<int> seeds4({1,2,3,4});
|
||||
std::vector<int> seeds5({5,6,7,8});
|
||||
std::vector<int> cseeds({5,6,7,8});
|
||||
GridParallelRNG RNG5(FGrid); RNG5.SeedFixedIntegers(seeds5);
|
||||
GridParallelRNG RNG4(UGrid); RNG4.SeedFixedIntegers(seeds4);
|
||||
GridParallelRNG CRNG(Coarse5d);CRNG.SeedFixedIntegers(cseeds);
|
||||
|
||||
LatticeFermion src(FGrid); gaussian(RNG5,src);
|
||||
LatticeFermion result(FGrid); result=zero;
|
||||
LatticeFermion ref(FGrid); ref=zero;
|
||||
LatticeFermion tmp(FGrid);
|
||||
LatticeFermion err(FGrid);
|
||||
LatticeGaugeField Umu(UGrid);
|
||||
|
||||
NerscField header;
|
||||
std::string file("./ckpoint_lat.4000");
|
||||
readNerscConfiguration(Umu,header,file);
|
||||
|
||||
// SU3::ColdConfiguration(RNG4,Umu);
|
||||
// SU3::TepidConfiguration(RNG4,Umu);
|
||||
// SU3::HotConfiguration(RNG4,Umu);
|
||||
// Umu=zero;
|
||||
|
||||
RealD mass=0.04;
|
||||
RealD M5=1.8;
|
||||
|
||||
std::cout << "**************************************************"<< std::endl;
|
||||
std::cout << "Building g5R5 hermitian DWF operator" <<std::endl;
|
||||
std::cout << "**************************************************"<< std::endl;
|
||||
DomainWallFermion Ddwf(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5);
|
||||
|
||||
const int nbasis = 4;
|
||||
|
||||
typedef Aggregation<vSpinColourVector,vTComplex,nbasis> Subspace;
|
||||
typedef CoarsenedMatrix<vSpinColourVector,vTComplex,nbasis> CoarseOperator;
|
||||
typedef CoarseOperator::CoarseVector CoarseVector;
|
||||
|
||||
std::cout << "**************************************************"<< std::endl;
|
||||
std::cout << "Calling Aggregation class to build subspace" <<std::endl;
|
||||
std::cout << "**************************************************"<< std::endl;
|
||||
MdagMLinearOperator<DomainWallFermion,LatticeFermion> HermDefOp(Ddwf);
|
||||
Subspace Aggregates(Coarse5d,FGrid);
|
||||
Aggregates.CreateSubspace(RNG5,HermDefOp);
|
||||
|
||||
std::cout << "**************************************************"<< std::endl;
|
||||
std::cout << "Building coarse representation of Indef operator" <<std::endl;
|
||||
std::cout << "**************************************************"<< std::endl;
|
||||
Gamma5R5HermitianLinearOperator<DomainWallFermion,LatticeFermion> HermIndefOp(Ddwf);
|
||||
CoarsenedMatrix<vSpinColourVector,vTComplex,nbasis> LDOp(*Coarse5d);
|
||||
LDOp.CoarsenOperator(FGrid,HermIndefOp,Aggregates);
|
||||
|
||||
std::cout << "**************************************************"<< std::endl;
|
||||
std::cout << "Testing some coarse space solvers " <<std::endl;
|
||||
std::cout << "**************************************************"<< std::endl;
|
||||
CoarseVector c_src (Coarse5d);
|
||||
CoarseVector c_res (Coarse5d);
|
||||
gaussian(CRNG,c_src);
|
||||
c_res=zero;
|
||||
|
||||
std::cout << "**************************************************"<< std::endl;
|
||||
std::cout << "Solving posdef-CG on coarse space "<< std::endl;
|
||||
std::cout << "**************************************************"<< std::endl;
|
||||
MdagMLinearOperator<CoarseOperator,CoarseVector> PosdefLdop(LDOp);
|
||||
ConjugateGradient<CoarseVector> CG(1.0e-6,10000);
|
||||
CG(PosdefLdop,c_src,c_res);
|
||||
|
||||
std::cout << "**************************************************"<< std::endl;
|
||||
std::cout << "Solving indef-MCR on coarse space "<< std::endl;
|
||||
std::cout << "**************************************************"<< std::endl;
|
||||
HermitianLinearOperator<CoarseOperator,CoarseVector> HermIndefLdop(LDOp);
|
||||
ConjugateResidual<CoarseVector> MCR(1.0e-6,10000);
|
||||
//MCR(HermIndefLdop,c_src,c_res);
|
||||
|
||||
std::cout << "**************************************************"<< std::endl;
|
||||
std::cout << "Building deflation preconditioner "<< std::endl;
|
||||
std::cout << "**************************************************"<< std::endl;
|
||||
|
||||
MultiGridPreconditioner <vSpinColourVector,vTComplex,nbasis> Precon(Aggregates, LDOp,HermIndefOp);
|
||||
|
||||
std::cout << "**************************************************"<< std::endl;
|
||||
std::cout << "Building a one level PGCR "<< std::endl;
|
||||
std::cout << "**************************************************"<< std::endl;
|
||||
TrivialPrecon<LatticeFermion> simple;
|
||||
PrecGeneralisedConjugateResidual<LatticeFermion> GCR(1.0e-6,10000,simple,8,64);
|
||||
GCR(HermIndefOp,src,result);
|
||||
|
||||
std::cout << "**************************************************"<< std::endl;
|
||||
std::cout << "Building a two level PGCR "<< std::endl;
|
||||
std::cout << "**************************************************"<< std::endl;
|
||||
PrecGeneralisedConjugateResidual<LatticeFermion> PGCR(1.0e-6,10000,Precon,8,64);
|
||||
PGCR(HermIndefOp,src,result);
|
||||
|
||||
std::cout << "**************************************************"<< std::endl;
|
||||
std::cout << "Done "<< std::endl;
|
||||
std::cout << "**************************************************"<< std::endl;
|
||||
Grid_finalize();
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user