mirror of
https://github.com/paboyle/Grid.git
synced 2024-09-19 16:55:37 +01:00
Updated hdcg
This commit is contained in:
Peter Boyle
parent
57552d8ca3
commit
5147a42818
@ -26,7 +26,8 @@ Author: Peter Boyle <pboyle@bnl.gov>
|
||||
*************************************************************************************/
|
||||
/* END LEGAL */
|
||||
#include <Grid/Grid.h>
|
||||
|
||||
#include <Grid/algorithms/iterative/ImplicitlyRestartedBlockLanczos.h>
|
||||
#include <Grid/algorithms/iterative/ImplicitlyRestartedBlockLanczosCoarse.h>
|
||||
#include <Grid/algorithms/iterative/AdefMrhs.h>
|
||||
|
||||
using namespace std;
|
||||
@ -179,8 +180,11 @@ public:
|
||||
};
|
||||
void operator() (const Field &in, Field &out)
|
||||
{
|
||||
ConjugateGradient<Field> CG(0.0,iters,false); // non-converge is just fine in a smoother
|
||||
out=Zero();
|
||||
ConjugateGradient<Field> CG(0.0,iters,false,false); // non-converge is just fine in a smoother
|
||||
RealD t=-usecond();
|
||||
out=Zero(); // 50ms on target volme is pretty slow
|
||||
t+=usecond();
|
||||
std::cout << GridLogMessage<< " zero took "<<t/1e3<<" ms"<<std::endl;
|
||||
CG(_SmootherOperator,in,out);
|
||||
}
|
||||
};
|
||||
@ -242,8 +246,7 @@ int main (int argc, char ** argv)
|
||||
HermFineMatrix FineHermOp(HermOpEO);
|
||||
|
||||
// Run power method on FineHermOp
|
||||
// PowerMethod<LatticeFermion> PM; PM(HermOpEO,src);
|
||||
|
||||
// PowerMethod<LatticeFermion> PM; PM(HermOpEO,src);
|
||||
////////////////////////////////////////////////////////////
|
||||
///////////// Coarse basis and Little Dirac Operator ///////
|
||||
////////////////////////////////////////////////////////////
|
||||
@ -259,18 +262,18 @@ int main (int argc, char ** argv)
|
||||
////////////////////////////////////////////////////////////
|
||||
// Need to check about red-black grid coarsening
|
||||
////////////////////////////////////////////////////////////
|
||||
LittleDiracOperator LittleDiracOp(geom,FrbGrid,Coarse5d);
|
||||
// LittleDiracOperator LittleDiracOp(geom,FrbGrid,Coarse5d);
|
||||
|
||||
std::string subspace_file("/lustre/orion/phy157/proj-shared/phy157_dwf/paboyle/Subspace.phys48.new.62");
|
||||
std::string refine_file("/lustre/orion/phy157/proj-shared/phy157_dwf/paboyle/Refine.phys48.new.62");
|
||||
std::string ldop_file("/lustre/orion/phy157/proj-shared/phy157_dwf/paboyle/LittleDiracOp.phys48.new.62");
|
||||
std::string evec_file("/lustre/orion/phy157/proj-shared/phy157_dwf/paboyle/evecs.scidac");
|
||||
std::string eval_file("/lustre/orion/phy157/proj-shared/phy157_dwf/paboyle/eval.xml");
|
||||
bool load_agg=false;
|
||||
bool load_refine=false;
|
||||
bool load_agg=true;
|
||||
bool load_refine=true;
|
||||
bool load_mat=false;
|
||||
bool load_evec=false;
|
||||
|
||||
std::cout << GridLogMessage <<" Restoring from checkpoint "<<std::endl;
|
||||
int refine=1;
|
||||
if ( load_agg ) {
|
||||
if ( !(refine) || (!load_refine) ) {
|
||||
@ -280,62 +283,30 @@ int main (int argc, char ** argv)
|
||||
// Aggregates.CreateSubspaceMultishift(RNG5,HermOpEO,
|
||||
// 0.0003,1.0e-5,2000); // Lo, tol, maxit
|
||||
// Aggregates.CreateSubspaceChebyshev(RNG5,HermOpEO,nbasis,95.,0.01,1500); <== last run
|
||||
// Aggregates.CreateSubspaceChebyshevNew(RNG5,HermOpEO,95.); // 176 with refinement
|
||||
Aggregates.CreateSubspaceChebyshev(RNG5,HermOpEO,nbasis,95.,0.001,3000,1500,200,0.0); // Attempt to resurrect
|
||||
Aggregates.CreateSubspaceChebyshevNew(RNG5,HermOpEO,95.); // 176 with refinement
|
||||
// Aggregates.CreateSubspaceChebyshev(RNG5,HermOpEO,nbasis,95.,0.001,3000,1500,200,0.0); // Attempt to resurrect
|
||||
SaveBasis(Aggregates,subspace_file);
|
||||
}
|
||||
|
||||
if(refine){
|
||||
if ( load_refine ) {
|
||||
LoadBasis(Aggregates,refine_file);
|
||||
} else {
|
||||
// HDCG used Pcg to refine
|
||||
//Aggregates.RefineSubspace(HermOpEO,0.001,1.0e-3,3000); // 172 iters
|
||||
//Aggregates.RefineSubspace(HermOpEO,0.001,1.0e-3,1500); // 202 iters
|
||||
Aggregates.RefineSubspace(HermOpEO,0.001,1.0e-3,2000); // 202 iters
|
||||
SaveBasis(Aggregates,refine_file);
|
||||
}
|
||||
if ( load_refine ) {
|
||||
LoadBasis(Aggregates,refine_file);
|
||||
} else {
|
||||
// HDCG used Pcg to refine
|
||||
Aggregates.RefineSubspace(HermOpEO,0.001,1.0e-3,3000); // 172 iters
|
||||
//Aggregates.RefineSubspace(HermOpEO,0.001,1.0e-3,1500); // 202 iters
|
||||
// Aggregates.RefineSubspace(HermOpEO,0.001,1.0e-3,2000); // 202 iters
|
||||
SaveBasis(Aggregates,refine_file);
|
||||
}
|
||||
|
||||
Aggregates.Orthogonalise();
|
||||
|
||||
/*
|
||||
if ( load_mat ) {
|
||||
LoadOperator(LittleDiracOp,ldop_file);
|
||||
} else {
|
||||
LittleDiracOp.CoarsenOperator(FineHermOp,Aggregates);
|
||||
SaveOperator(LittleDiracOp,ldop_file);
|
||||
}
|
||||
|
||||
// I/O test:
|
||||
CoarseVector c_src(Coarse5d); random(CRNG,c_src);
|
||||
CoarseVector c_res(Coarse5d);
|
||||
CoarseVector c_ref(Coarse5d);
|
||||
|
||||
if (0){
|
||||
///////////////////////////////////////////////////
|
||||
// Test the operator
|
||||
///////////////////////////////////////////////////
|
||||
CoarseVector c_proj(Coarse5d);
|
||||
LatticeFermionD tmp(FrbGrid);
|
||||
LatticeFermionD prom(FrbGrid);
|
||||
|
||||
blockPromote(c_src,prom,Aggregates.subspace);
|
||||
|
||||
FineHermOp.HermOp(prom,tmp);
|
||||
|
||||
std::cout<<GridLogMessage<<" Calling big dirac op "<<norm2(tmp)<<std::endl;
|
||||
blockProject(c_proj,tmp,Aggregates.subspace);
|
||||
|
||||
std::cout<<GridLogMessage<<" Calling little Dirac Op "<<std::endl;
|
||||
|
||||
LittleDiracOp.M(c_src,c_res);
|
||||
|
||||
std::cout<<GridLogMessage<<"Little dop : "<<norm2(c_res)<<std::endl;
|
||||
std::cout<<GridLogMessage<<"Big dop in subspace : "<<norm2(c_proj)<<std::endl;
|
||||
|
||||
c_proj = c_proj - c_res;
|
||||
std::cout<<GridLogMessage<<" ldop error: "<<norm2(c_proj)<<std::endl;
|
||||
}
|
||||
|
||||
*/
|
||||
//////////////////////////////////////
|
||||
// mrhs coarse operator
|
||||
// Create a higher dim coarse grid
|
||||
@ -346,7 +317,7 @@ int main (int argc, char ** argv)
|
||||
std::cout << "**************************************"<<std::endl;
|
||||
ConjugateGradient<CoarseVector> coarseCG(4.0e-2,20000,true);
|
||||
|
||||
const int nrhs=vComplex::Nsimd()*3;
|
||||
const int nrhs=vComplex::Nsimd()*3; // 12
|
||||
|
||||
Coordinate mpi=GridDefaultMpi();
|
||||
Coordinate rhMpi ({1,1,mpi[0],mpi[1],mpi[2],mpi[3]});
|
||||
@ -354,12 +325,11 @@ int main (int argc, char ** argv)
|
||||
Coordinate rhSimd({vComplex::Nsimd(),1, 1,1,1,1});
|
||||
|
||||
GridCartesian *CoarseMrhs = new GridCartesian(rhLatt,rhSimd,rhMpi);
|
||||
// MultiGeneralCoarsenedMatrix mrhs(LittleDiracOp,CoarseMrhs);
|
||||
typedef MultiGeneralCoarsenedMatrix<vSpinColourVector,vTComplex,nbasis> MultiGeneralCoarsenedMatrix_t;
|
||||
MultiGeneralCoarsenedMatrix_t mrhs(geom,CoarseMrhs);
|
||||
mrhs.CopyMatrix(LittleDiracOp);
|
||||
// mrhs.CopyMatrix(LittleDiracOp);
|
||||
// mrhs.SetMatrix(LittleDiracOp.);
|
||||
// mrhs.CoarsenOperator(FineHermOp,Aggregates,Coarse5d);
|
||||
mrhs.CoarsenOperator(FineHermOp,Aggregates,Coarse5d);
|
||||
// mrhs.CheckMatrix(LittleDiracOp);
|
||||
|
||||
//////////////////////////////////////////
|
||||
@ -369,36 +339,45 @@ int main (int argc, char ** argv)
|
||||
std::cout << "Building Coarse Lanczos "<<std::endl;
|
||||
std::cout << "**************************************"<<std::endl;
|
||||
|
||||
typedef HermitianLinearOperator<LittleDiracOperator,CoarseVector> HermMatrix;
|
||||
HermMatrix CoarseOp (LittleDiracOp);
|
||||
typedef HermitianLinearOperator<MultiGeneralCoarsenedMatrix_t,CoarseVector> MrhsHermMatrix;
|
||||
// FunctionHermOp<CoarseVector> IRLOpCheby(IRLCheby,CoarseOp);
|
||||
// PlainHermOp<CoarseVector> IRLOp (CoarseOp);
|
||||
Chebyshev<CoarseVector> IRLCheby(0.005,42.0,301); // 1 iter
|
||||
MrhsHermMatrix MrhsCoarseOp (mrhs);
|
||||
|
||||
CoarseVector pm_src(CoarseMrhs);
|
||||
pm_src = ComplexD(1.0);
|
||||
PowerMethod<CoarseVector> cPM; cPM(MrhsCoarseOp,pm_src);
|
||||
|
||||
int Nk=192;
|
||||
int Nm=256;
|
||||
int Nm=384;
|
||||
int Nstop=Nk;
|
||||
int Nconv_test_interval=1;
|
||||
|
||||
Chebyshev<CoarseVector> IRLCheby(0.005,40.0,201); // 1 iter
|
||||
FunctionHermOp<CoarseVector> IRLOpCheby(IRLCheby,CoarseOp);
|
||||
PlainHermOp<CoarseVector> IRLOp (CoarseOp);
|
||||
|
||||
ImplicitlyRestartedLanczos<CoarseVector> IRL(IRLOpCheby,IRLOp,Nstop,Nk,Nm,1e-5,10);
|
||||
// ImplicitlyRestartedLanczos<CoarseVector> IRL(IRLOpCheby,IRLOp,Nstop,Nk,Nm,1e-5,10);
|
||||
ImplicitlyRestartedBlockLanczosCoarse<CoarseVector> IRL(MrhsCoarseOp,
|
||||
Coarse5d,
|
||||
CoarseMrhs,
|
||||
nrhs,
|
||||
IRLCheby,
|
||||
Nstop,
|
||||
Nconv_test_interval,
|
||||
nrhs,
|
||||
Nk,
|
||||
Nm,
|
||||
1e-5,10);
|
||||
|
||||
int Nconv;
|
||||
std::vector<RealD> eval(Nm);
|
||||
std::vector<CoarseVector> evec(Nm,Coarse5d);
|
||||
|
||||
// PowerMethod<CoarseVector> cPM; cPM(CoarseOp,c_src);
|
||||
|
||||
if ( load_evec ) {
|
||||
eval.resize(Nstop);
|
||||
evec.resize(Nstop,Coarse5d);
|
||||
LoadEigenvectors(eval,evec,evec_file,eval_file);
|
||||
} else {
|
||||
IRL.calc(eval,evec,c_src,Nconv);
|
||||
assert(Nstop==eval.size());
|
||||
SaveEigenvectors(eval,evec,evec_file,eval_file);
|
||||
std::vector<CoarseVector> c_src(nrhs,Coarse5d);
|
||||
for(int r=0;r<nrhs;r++){
|
||||
random(CRNG,c_src[r]);
|
||||
}
|
||||
DeflatedGuesser<CoarseVector> DeflCoarseGuesser(evec,eval);
|
||||
IRL.calc(eval,evec,c_src,Nconv,LanczosType::irbl);
|
||||
// assert(Nstop==eval.size());
|
||||
|
||||
DeflatedGuesser<CoarseVector> DeflCoarseGuesser(evec,eval);
|
||||
MultiRHSDeflation<CoarseVector> MrhsGuesser;
|
||||
MrhsGuesser.ImportEigenBasis(evec,eval);
|
||||
|
||||
@ -407,71 +386,8 @@ int main (int argc, char ** argv)
|
||||
//////////////////////////////////////////
|
||||
int maxit=30000;
|
||||
ConjugateGradient<CoarseVector> CG(5.0e-2,maxit,false);
|
||||
ZeroGuesser<CoarseVector> CoarseZeroGuesser;
|
||||
|
||||
HPDSolver<CoarseVector> HPDSolve(CoarseOp,CG,DeflCoarseGuesser);
|
||||
c_res=Zero();
|
||||
|
||||
/////////// MRHS test .////////////
|
||||
typedef HermitianLinearOperator<MultiGeneralCoarsenedMatrix_t,CoarseVector> MrhsHermMatrix;
|
||||
MrhsHermMatrix MrhsCoarseOp (mrhs);
|
||||
|
||||
#if 0
|
||||
{
|
||||
CoarseVector rh_res(CoarseMrhs);
|
||||
CoarseVector rh_guess(CoarseMrhs);
|
||||
CoarseVector rh_src(CoarseMrhs);
|
||||
|
||||
rh_res= Zero();
|
||||
rh_guess= Zero();
|
||||
|
||||
std::cout << "*************************"<<std::endl;
|
||||
std::cout << " MrhsGuesser importing"<<std::endl;
|
||||
std::cout << "*************************"<<std::endl;
|
||||
std::vector<CoarseVector> BlasGuess(nrhs,Coarse5d);
|
||||
std::vector<CoarseVector> BlasSource(nrhs,Coarse5d);
|
||||
for(int r=0;r<nrhs;r++){
|
||||
random(CRNG,BlasSource[r]);
|
||||
}
|
||||
|
||||
MrhsGuesser.DeflateSources(BlasSource,BlasGuess);
|
||||
|
||||
for(int r=0;r<nrhs;r++){
|
||||
std::cout << "*************************"<<std::endl;
|
||||
std::cout << "**** DeflCoarseGuesser &&&&& "<<std::endl;
|
||||
std::cout << "*************************"<<std::endl;
|
||||
c_src=BlasSource[r];
|
||||
DeflCoarseGuesser(c_src,c_res);
|
||||
std::cout << "Deflated guess "<< norm2(c_res)<<std::endl;
|
||||
std::cout << "Blas deflated guess "<< norm2(BlasGuess[r])<<std::endl;
|
||||
std::cout << "*************************"<<std::endl;
|
||||
BlasGuess[r] = BlasGuess[r] - c_res;
|
||||
std::cout << "Diff " <<norm2(BlasGuess[r])<<std::endl;
|
||||
std::cout << "*************************"<<std::endl;
|
||||
InsertSlice(c_res,rh_res,r,0);
|
||||
InsertSlice(c_res,rh_guess,r,0);
|
||||
InsertSlice(c_src,rh_src,r,0);
|
||||
}
|
||||
|
||||
std::cout << " Calling the multiRHS coarse CG"<<std::endl;
|
||||
coarseCG(MrhsCoarseOp,rh_src,rh_res);
|
||||
|
||||
//redo with block CG ?
|
||||
for(int r=0;r<nrhs;r++){
|
||||
std::cout << " compare to single RHS "<<r<<"/"<<nrhs<<std::endl;
|
||||
ExtractSlice(c_src,rh_src,r,0);
|
||||
ExtractSlice(c_res,rh_res,r,0);
|
||||
ExtractSlice(c_ref,rh_guess,r,0);
|
||||
coarseCG(CoarseOp,c_src,c_ref);
|
||||
std::cout << " mrhs [" <<r <<"] "<< norm2(c_res)<<std::endl;
|
||||
std::cout << " srhs [" <<r <<"] "<< norm2(c_ref)<<std::endl;
|
||||
c_ref=c_ref-c_res;
|
||||
RealD diff =norm2(c_ref)/norm2(c_src);
|
||||
std::cout << r << " diff " << diff<<std::endl;
|
||||
assert(diff < 1.0e-1);
|
||||
}
|
||||
}
|
||||
#endif
|
||||
// HPDSolver<CoarseVector> HPDSolve(CoarseOp,CG,DeflCoarseGuesser);
|
||||
// c_res=Zero();
|
||||
|
||||
//////////////////////////////////////
|
||||
// fine solve
|
||||
@ -488,7 +404,7 @@ int main (int argc, char ** argv)
|
||||
// Coarse sloppy solve
|
||||
/////////////////////////////////////////////////
|
||||
ConjugateGradient<CoarseVector> CGsloppy(5.0e-2,maxit,false);
|
||||
HPDSolver<CoarseVector> HPDSolveSloppy(CoarseOp,CGsloppy,DeflCoarseGuesser);
|
||||
// HPDSolver<CoarseVector> HPDSolveSloppy(CoarseOp,CGsloppy,DeflCoarseGuesser);
|
||||
|
||||
/////////////////////////////////////////////////
|
||||
// Mirs smoother
|
||||
@ -526,7 +442,6 @@ int main (int argc, char ** argv)
|
||||
|
||||
for(int r=0;r<nrhs;r++){
|
||||
random(RNG5,src_mrhs[r]);
|
||||
// if(r>0)src_mrhs[r]=src_mrhs[0];
|
||||
res_mrhs[r]=Zero();
|
||||
std::cout << "Setup mrhs source "<<r<<std::endl;
|
||||
}
|
||||
@ -538,12 +453,12 @@ int main (int argc, char ** argv)
|
||||
}
|
||||
|
||||
// Standard CG
|
||||
#if 1
|
||||
#if 0
|
||||
{
|
||||
LatticeFermion result(FrbGrid); result=Zero();
|
||||
LatticeFermion src(FrbGrid); random(RNG5,src);
|
||||
result=Zero();
|
||||
ConjugateGradient<LatticeFermionD> CGfine(1.0e-8,30000,false);
|
||||
|
||||
CGfine(HermOpEO, src, result);
|
||||
}
|
||||
#endif
|
||||
|
||||
Loading…
Reference in New Issue
Block a user