mirror of
https://github.com/paboyle/Grid.git
synced 2024-11-14 01:35:36 +00:00
191 lines
7.1 KiB
C++
191 lines
7.1 KiB
C++
/*************************************************************************************
|
|
|
|
Grid physics library, www.github.com/paboyle/Grid
|
|
|
|
Source file: ./tests/Test_contfrac_cg.cc
|
|
|
|
Copyright (C) 2015
|
|
|
|
Author: Peter Boyle <paboyle@ph.ed.ac.uk>
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License along
|
|
with this program; if not, write to the Free Software Foundation, Inc.,
|
|
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
|
|
See the full license in the file "LICENSE" in the top level distribution directory
|
|
*************************************************************************************/
|
|
/* END LEGAL */
|
|
#include <Grid/Grid.h>
|
|
|
|
using namespace std;
|
|
using namespace Grid;
|
|
;
|
|
|
|
template<class d>
|
|
struct scal {
|
|
d internal;
|
|
};
|
|
|
|
Gamma::Algebra Gmu [] = {
|
|
Gamma::Algebra::GammaX,
|
|
Gamma::Algebra::GammaY,
|
|
Gamma::Algebra::GammaZ,
|
|
Gamma::Algebra::GammaT
|
|
};
|
|
|
|
|
|
template<class What>
|
|
void TestCGinversions(What & Ddwf,
|
|
GridCartesian * FGrid, GridRedBlackCartesian * FrbGrid,
|
|
GridCartesian * UGrid, GridRedBlackCartesian * UrbGrid,
|
|
RealD mass, RealD M5,
|
|
GridParallelRNG *RNG4,
|
|
GridParallelRNG *RNG5);
|
|
template<class What>
|
|
void TestCGschur(What & Ddwf,
|
|
GridCartesian * FGrid, GridRedBlackCartesian * FrbGrid,
|
|
GridCartesian * UGrid, GridRedBlackCartesian * UrbGrid,
|
|
RealD mass, RealD M5,
|
|
GridParallelRNG *RNG4,
|
|
GridParallelRNG *RNG5);
|
|
|
|
template<class What>
|
|
void TestCGunprec(What & Ddwf,
|
|
GridCartesian * FGrid, GridRedBlackCartesian * FrbGrid,
|
|
GridCartesian * UGrid, GridRedBlackCartesian * UrbGrid,
|
|
RealD mass, RealD M5,
|
|
GridParallelRNG *RNG4,
|
|
GridParallelRNG *RNG5);
|
|
|
|
template<class What>
|
|
void TestCGprec(What & Ddwf,
|
|
GridCartesian * FGrid, GridRedBlackCartesian * FrbGrid,
|
|
GridCartesian * UGrid, GridRedBlackCartesian * UrbGrid,
|
|
RealD mass, RealD M5,
|
|
GridParallelRNG *RNG4,
|
|
GridParallelRNG *RNG5);
|
|
|
|
int main (int argc, char ** argv)
|
|
{
|
|
Grid_init(&argc,&argv);
|
|
|
|
int threads = GridThread::GetThreads();
|
|
std::cout<<GridLogMessage << "Grid is setup to use "<<threads<<" threads"<<std::endl;
|
|
|
|
const int Ls=9;
|
|
GridCartesian * UGrid = SpaceTimeGrid::makeFourDimGrid(GridDefaultLatt(), GridDefaultSimd(Nd,vComplex::Nsimd()),GridDefaultMpi());
|
|
GridRedBlackCartesian * UrbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(UGrid);
|
|
GridCartesian * FGrid = SpaceTimeGrid::makeFiveDimGrid(Ls,UGrid);
|
|
GridRedBlackCartesian * FrbGrid = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,UGrid);
|
|
|
|
|
|
std::vector<int> seeds4({1,2,3,4});
|
|
std::vector<int> seeds5({5,6,7,8});
|
|
GridParallelRNG RNG5(FGrid); RNG5.SeedFixedIntegers(seeds5);
|
|
GridParallelRNG RNG4(UGrid); RNG4.SeedFixedIntegers(seeds4);
|
|
|
|
LatticeGaugeField Umu(UGrid); SU<Nc>::HotConfiguration(RNG4,Umu);
|
|
std::vector<LatticeColourMatrix> U(4,UGrid);
|
|
|
|
RealD mass=0.1;
|
|
RealD M5 =1.8;
|
|
|
|
|
|
std::cout<<GridLogMessage <<"OverlapWilsonContFracTanhFermion test"<<std::endl;
|
|
OverlapWilsonContFracTanhFermionR Dcf(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5,1.0);
|
|
TestCGinversions<OverlapWilsonContFracTanhFermionR>(Dcf,FGrid,FrbGrid,UGrid,UrbGrid,mass,M5,&RNG4,&RNG5);
|
|
|
|
std::cout<<GridLogMessage <<"OverlapWilsonContFracZolotarevFermion test"<<std::endl;
|
|
OverlapWilsonContFracZolotarevFermionR Dcfz(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5,0.1,6.0);
|
|
TestCGinversions<OverlapWilsonContFracZolotarevFermionR>(Dcfz,FGrid,FrbGrid,UGrid,UrbGrid,mass,M5,&RNG4,&RNG5);
|
|
|
|
|
|
std::cout<<GridLogMessage <<"OverlapWilsonPartialFractionTanhFermion test"<<std::endl;
|
|
OverlapWilsonPartialFractionTanhFermionR Dpf(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5,1.0);
|
|
TestCGinversions<OverlapWilsonPartialFractionTanhFermionR>(Dpf,FGrid,FrbGrid,UGrid,UrbGrid,mass,M5,&RNG4,&RNG5);
|
|
|
|
std::cout<<GridLogMessage <<"OverlapWilsonPartialFractionZolotarevFermion test"<<std::endl;
|
|
OverlapWilsonPartialFractionZolotarevFermionR Dpfz(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5,0.1,6.0);
|
|
TestCGinversions<OverlapWilsonPartialFractionZolotarevFermionR>(Dpfz,FGrid,FrbGrid,UGrid,UrbGrid,mass,M5,&RNG4,&RNG5);
|
|
|
|
|
|
Grid_finalize();
|
|
}
|
|
template<class What>
|
|
void TestCGinversions(What & Ddwf,
|
|
GridCartesian * FGrid, GridRedBlackCartesian * FrbGrid,
|
|
GridCartesian * UGrid, GridRedBlackCartesian * UrbGrid,
|
|
RealD mass, RealD M5,
|
|
GridParallelRNG *RNG4,
|
|
GridParallelRNG *RNG5)
|
|
{
|
|
std::cout<<GridLogMessage << "Testing unpreconditioned inverter"<<std::endl;
|
|
TestCGunprec<What>(Ddwf,FGrid,FrbGrid,UGrid,UrbGrid,mass,M5,RNG4,RNG5);
|
|
std::cout<<GridLogMessage << "Testing red black preconditioned inverter"<<std::endl;
|
|
TestCGprec<What>(Ddwf,FGrid,FrbGrid,UGrid,UrbGrid,mass,M5,RNG4,RNG5);
|
|
std::cout<<GridLogMessage << "Testing red black Schur inverter"<<std::endl;
|
|
TestCGschur<What>(Ddwf,FGrid,FrbGrid,UGrid,UrbGrid,mass,M5,RNG4,RNG5);
|
|
}
|
|
|
|
template<class What>
|
|
void TestCGunprec(What & Ddwf,
|
|
GridCartesian * FGrid, GridRedBlackCartesian * FrbGrid,
|
|
GridCartesian * UGrid, GridRedBlackCartesian * UrbGrid,
|
|
RealD mass, RealD M5,
|
|
GridParallelRNG *RNG4,
|
|
GridParallelRNG *RNG5)
|
|
{
|
|
LatticeFermion src (FGrid); random(*RNG5,src);
|
|
LatticeFermion result(FGrid); result=Zero();
|
|
|
|
MdagMLinearOperator<What,LatticeFermion> HermOp(Ddwf);
|
|
ConjugateGradient<LatticeFermion> CG(1.0e-8,10000);
|
|
CG(HermOp,src,result);
|
|
|
|
}
|
|
template<class What>
|
|
void TestCGprec(What & Ddwf,
|
|
GridCartesian * FGrid, GridRedBlackCartesian * FrbGrid,
|
|
GridCartesian * UGrid, GridRedBlackCartesian * UrbGrid,
|
|
RealD mass, RealD M5,
|
|
GridParallelRNG *RNG4,
|
|
GridParallelRNG *RNG5)
|
|
{
|
|
LatticeFermion src (FGrid); random(*RNG5,src);
|
|
LatticeFermion src_o(FrbGrid);
|
|
LatticeFermion result_o(FrbGrid);
|
|
pickCheckerboard(Odd,src_o,src);
|
|
result_o=Zero();
|
|
|
|
SchurDiagMooeeOperator<What,LatticeFermion> HermOpEO(Ddwf);
|
|
ConjugateGradient<LatticeFermion> CG(1.0e-8,10000);
|
|
CG(HermOpEO,src_o,result_o);
|
|
}
|
|
|
|
|
|
template<class What>
|
|
void TestCGschur(What & Ddwf,
|
|
GridCartesian * FGrid, GridRedBlackCartesian * FrbGrid,
|
|
GridCartesian * UGrid, GridRedBlackCartesian * UrbGrid,
|
|
RealD mass, RealD M5,
|
|
GridParallelRNG *RNG4,
|
|
GridParallelRNG *RNG5)
|
|
{
|
|
LatticeFermion src (FGrid); random(*RNG5,src);
|
|
LatticeFermion result(FGrid); result=Zero();
|
|
|
|
ConjugateGradient<LatticeFermion> CG(1.0e-8,10000);
|
|
SchurRedBlackDiagMooeeSolve<LatticeFermion> SchurSolver(CG);
|
|
SchurSolver(Ddwf,src,result);
|
|
}
|