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Mrhs prep

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This commit is contained in:
Peter Boyle 2024-02-27 11:41:13 -05:00
parent 9f40467e24
commit cd15abe9d1
1 changed files with 48 additions and 18 deletions
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66
tests/debug/Test_general_coarse_hdcg_phys48.cc
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@ -26,11 +26,6 @@ Author: Peter Boyle <pboyle@bnl.gov>
*************************************************************************************/
/* END LEGAL */
#include <Grid/Grid.h>
#include <Grid/lattice/PaddedCell.h>
#include <Grid/stencil/GeneralLocalStencil.h>
//#include <Grid/algorithms/GeneralCoarsenedMatrix.h>
#include <Grid/algorithms/iterative/AdefGeneric.h>
#include <Grid/algorithms/iterative/BlockConjugateGradient.h>
using namespace std;
using namespace Grid;
@ -486,6 +481,8 @@ slurm-1482367.out:Grid : Message : 6169.469330 s : HDCG: Pcg converged in 487 it
DeflatedGuesser<CoarseVector> DeflCoarseGuesser(evec,eval);
MultiRHSDeflation<CoarseVector> MrhsGuesser;
//////////////////////////////////////////
// Build a coarse space solver
//////////////////////////////////////////
@ -609,7 +606,7 @@ slurm-1482367.out:Grid : Message : 6169.469330 s : HDCG: Pcg converged in 487 it
typedef HermitianLinearOperator<MultiGeneralCoarsenedMatrix_t,CoarseVector> MrhsHermMatrix;
MrhsHermMatrix MrhsCoarseOp (mrhs);
MemoryManager::Print();
#if 0
#if 1
{
CoarseVector rh_res(CoarseMrhs);
CoarseVector rh_guess(CoarseMrhs);
@ -617,19 +614,39 @@ slurm-1482367.out:Grid : Message : 6169.469330 s : HDCG: Pcg converged in 487 it
rh_res= Zero();
rh_guess= Zero();
std::cout << "*************************"<<std::endl;
std::cout << " MrhsGuesser importing"<<std::endl;
std::cout << "*************************"<<std::endl;
MrhsGuesser.ImportEigenBasis(evec,eval);
std::vector<CoarseVector> BlasGuess(nrhs,Coarse5d);
std::vector<CoarseVector> BlasSource(nrhs,Coarse5d);
for(int r=0;r<nrhs;r++){
random(CRNG,c_src);
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);
}
MemoryManager::Print();
coarseCG(MrhsCoarseOp,rh_src,rh_res);
MemoryManager::Print();
//redo with block CG
//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);
@ -645,7 +662,7 @@ slurm-1482367.out:Grid : Message : 6169.469330 s : HDCG: Pcg converged in 487 it
}
}
#endif
MemoryManager::Print();
//////////////////////////////////////
// fine solve
//////////////////////////////////////
@ -653,12 +670,23 @@ slurm-1482367.out:Grid : Message : 6169.469330 s : HDCG: Pcg converged in 487 it
// std::vector<RealD> los({2.0,2.5}); // Nbasis 40 == 36,36 iters
// std::vector<RealD> los({2.0});
std::vector<RealD> los({2.5});
// std::vector<RealD> los({2.5});
// std::vector<int> ords({7,8,10}); // Nbasis 40 == 40,38,36 iters (320,342,396 mults)
// std::vector<int> ords({7}); // Nbasis 40 == 40 iters (320 mults)
// std::vector<int> ords({9}); // Nbasis 40 == 40 iters (320 mults)
std::vector<int> ords({9});
// 148 outer
// std::vector<RealD> los({1.0});
// std::vector<int> ords({24});
// 162 outer
// std::vector<RealD> los({2.5});
// std::vector<int> ords({9});
// ??? outer
std::vector<RealD> los({2.0});
std::vector<int> ords({7});
/*
Smoother opt @56 nbasis, 0.04 convergence, 192 evs
@ -778,14 +806,16 @@ Conclusion: higher order smoother is doing better. Much better. Use a Krylov smo
#if 1
MemoryManager::Print();
DoNothingGuesser<CoarseVector> DoNothing;
HPDSolver<CoarseVector> HPDSolveMrhs(MrhsCoarseOp,coarseCG,DoNothing);
HPDSolver<CoarseVector> HPDSolveMrhs(MrhsCoarseOp,CG,DoNothing);
HPDSolver<CoarseVector> HPDSolveMrhsSloppy(MrhsCoarseOp,CGsloppy,DoNothing);
TwoLevelADEF2mrhs<LatticeFermion,CoarseVector,Subspace>
HDCGmrhs(1.0e-8, 500,
FineHermOp,
CGsmooth,
HPDSolveSloppy, // Never used
HPDSolve, // Used in Vstart
HPDSolveMrhs, // Used in M1
// HPDSolveSloppy, // Never used
// HPDSolve, // Used in Vstart
HPDSolveMrhsSloppy, // Used in M1
HPDSolveMrhs, // Used in Vstart
DeflCoarseGuesser, // single RHS guess used in M1
CoarseMrhs, // Grid needed to Mrhs grid
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