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paboyle
130
tests/solver/Test_staggered_block_cg_prec.cc
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130
tests/solver/Test_staggered_block_cg_prec.cc
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/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: ./tests/Test_wilson_cg_unprec.cc
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Copyright (C) 2015
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Author: Azusa Yamaguchi <ayamaguc@staffmail.ed.ac.uk>
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Author: Peter Boyle <paboyle@ph.ed.ac.uk>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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See the full license in the file "LICENSE" in the top level distribution directory
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*************************************************************************************/
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/* END LEGAL */
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#include <Grid/Grid.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::Algebra Gmu [] = {
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Gamma::Algebra::GammaX,
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Gamma::Algebra::GammaY,
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Gamma::Algebra::GammaZ,
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Gamma::Algebra::GammaT
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};
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int main (int argc, char ** argv)
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{
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typedef typename ImprovedStaggeredFermion5DR::FermionField FermionField;
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typedef typename ImprovedStaggeredFermion5DR::ComplexField ComplexField;
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typename ImprovedStaggeredFermion5DR::ImplParams params;
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const int Ls=8;
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Grid_init(&argc,&argv);
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std::vector<int> latt_size = GridDefaultLatt();
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std::vector<int> simd_layout = GridDefaultSimd(Nd,vComplex::Nsimd());
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std::vector<int> mpi_layout = GridDefaultMpi();
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GridCartesian * UGrid = SpaceTimeGrid::makeFourDimGrid(GridDefaultLatt(), GridDefaultSimd(Nd,vComplex::Nsimd()),GridDefaultMpi());
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GridRedBlackCartesian * UrbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(UGrid);
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GridCartesian * FGrid = SpaceTimeGrid::makeFiveDimGrid(Ls,UGrid);
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GridRedBlackCartesian * FrbGrid = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,UGrid);
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std::vector<int> seeds({1,2,3,4});
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GridParallelRNG pRNG(UGrid ); pRNG.SeedFixedIntegers(seeds);
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GridParallelRNG pRNG5(FGrid); pRNG5.SeedFixedIntegers(seeds);
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FermionField src(FGrid); random(pRNG5,src);
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FermionField src_o(FrbGrid); pickCheckerboard(Odd,src_o,src);
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FermionField result_o(FrbGrid); result_o=zero;
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RealD nrm = norm2(src);
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LatticeGaugeField Umu(UGrid); SU3::HotConfiguration(pRNG,Umu);
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RealD mass=0.003;
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ImprovedStaggeredFermion5DR Ds(Umu,Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass);
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SchurDiagMooeeOperator<ImprovedStaggeredFermion5DR,FermionField> HermOp(Ds);
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ConjugateGradient<FermionField> CG(1.0e-8,10000);
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int blockDim = 0;
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BlockConjugateGradient<FermionField> BCGrQ(BlockCGrQ,blockDim,1.0e-8,10000);
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BlockConjugateGradient<FermionField> BCG (BlockCG,blockDim,1.0e-8,10000);
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BlockConjugateGradient<FermionField> mCG (CGmultiRHS,blockDim,1.0e-8,10000);
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std::cout << GridLogMessage << "****************************************************************** "<<std::endl;
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std::cout << GridLogMessage << " Calling 4d CG "<<std::endl;
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std::cout << GridLogMessage << "****************************************************************** "<<std::endl;
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ImprovedStaggeredFermionR Ds4d(Umu,Umu,*UGrid,*UrbGrid,mass);
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SchurDiagMooeeOperator<ImprovedStaggeredFermionR,FermionField> HermOp4d(Ds4d);
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FermionField src4d(UGrid); random(pRNG,src4d);
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FermionField src4d_o(UrbGrid); pickCheckerboard(Odd,src4d_o,src4d);
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FermionField result4d_o(UrbGrid);
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result4d_o=zero;
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CG(HermOp4d,src4d_o,result4d_o);
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std::cout << GridLogMessage << "************************************************************************ "<<std::endl;
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std::cout << GridLogMessage << "************************************************************************ "<<std::endl;
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std::cout << GridLogMessage << " Calling 5d CG for "<<Ls <<" right hand sides" <<std::endl;
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std::cout << GridLogMessage << "************************************************************************ "<<std::endl;
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Ds.ZeroCounters();
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result_o=zero;
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CG(HermOp,src_o,result_o);
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Ds.Report();
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std::cout << GridLogMessage << "************************************************************************ "<<std::endl;
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std::cout << GridLogMessage << "************************************************************************ "<<std::endl;
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std::cout << GridLogMessage << " Calling multiRHS CG for "<<Ls <<" right hand sides" <<std::endl;
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std::cout << GridLogMessage << "************************************************************************ "<<std::endl;
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Ds.ZeroCounters();
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result_o=zero;
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mCG(HermOp,src_o,result_o);
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Ds.Report();
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std::cout << GridLogMessage << "************************************************************************ "<<std::endl;
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std::cout << GridLogMessage << "************************************************************************ "<<std::endl;
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std::cout << GridLogMessage << " Calling Block CG for "<<Ls <<" right hand sides" <<std::endl;
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std::cout << GridLogMessage << "************************************************************************ "<<std::endl;
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Ds.ZeroCounters();
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result_o=zero;
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BCGrQ(HermOp,src_o,result_o);
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Ds.Report();
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std::cout << GridLogMessage << "************************************************************************ "<<std::endl;
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Grid_finalize();
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}
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@@ -71,7 +71,7 @@ int main (int argc, char ** argv)
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volume=volume*latt_size[mu];
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}
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RealD mass=0.1;
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RealD mass=0.003;
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ImprovedStaggeredFermionR Ds(Umu,Umu,Grid,RBGrid,mass);
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FermionField res_o(&RBGrid);
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@@ -83,5 +83,10 @@ int main (int argc, char ** argv)
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ConjugateGradient<FermionField> CG(1.0e-8,10000);
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CG(HermOpEO,src_o,res_o);
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FermionField tmp(&RBGrid);
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HermOpEO.Mpc(res_o,tmp);
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std::cout << "check Mpc resid " << axpy_norm(tmp,-1.0,src_o,tmp)/norm2(src_o) << "\n";
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Grid_finalize();
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}
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