mirror of
https://github.com/paboyle/Grid.git
synced 2024-11-14 01:35:36 +00:00
85 lines
3.0 KiB
C++
85 lines
3.0 KiB
C++
|
/*************************************************************************************
|
||
|
|
|
||
|
|
Grid physics library, www.github.com/paboyle/Grid
|
||
|
|
|
||
|
|
Source file: ./tests/Test_dwf_cr_unprec.cc
|
||
|
|
|
||
|
|
Copyright (C) 2019
|
||
|
|
|
||
|
|
Author: Peter Boyle <pboyle@bnl.gov>
|
||
|
|
|
||
|
|
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>
|
||
|
|
#include <Grid/algorithms/iterative/QuasiMinimalResidual.h>
|
||
|
|
|
||
|
|
using namespace std;
|
||
|
|
using namespace Grid;
|
||
|
|
|
||
|
|
|
||
|
|
int main (int argc, char ** argv)
|
||
|
|
{
|
||
|
|
Grid_init(&argc,&argv);
|
||
|
|
|
||
|
|
const int Ls=8;
|
||
|
|
|
||
|
|
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);
|
||
|
|
|
||
|
|
LatticeFermion src(FGrid); random(RNG5,src);
|
||
|
|
LatticeFermion result(FGrid); result=Zero();
|
||
|
|
LatticeGaugeField Umu(UGrid); SU3::HotConfiguration(RNG4,Umu);
|
||
|
|
|
||
|
|
std::vector<LatticeColourMatrix> U(4,UGrid);
|
||
|
|
|
||
|
|
for(int mu=0;mu<Nd;mu++){
|
||
|
|
U[mu] = PeekIndex<LorentzIndex>(Umu,mu);
|
||
|
|
}
|
||
|
|
|
||
|
|
RealD tol = 1.0e-8;
|
||
|
|
RealD maxit=2000;
|
||
|
|
QuasiMinimalResidual<LatticeFermion> QMR(tol,maxit);
|
||
|
|
GeneralisedMinimalResidual<LatticeFermion> GMR(tol, maxit, 32,false);
|
||
|
|
|
||
|
|
RealD mass=0.0;
|
||
|
|
RealD M5=-1.8;
|
||
|
|
DomainWallFermionR Ddwf(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5);
|
||
|
|
|
||
|
|
Gamma5R5HermitianLinearOperator<DomainWallFermionR,LatticeFermion> g5HermOp(Ddwf);
|
||
|
|
QMR(g5HermOp,src,result);
|
||
|
|
GMR(g5HermOp,src,result);
|
||
|
|
|
||
|
|
NonHermitianLinearOperator<DomainWallFermionR,LatticeFermion> NonHermOp(Ddwf);
|
||
|
|
QMR(NonHermOp,src,result);
|
||
|
|
GMR(NonHermOp,src,result);
|
||
|
|
|
||
|
|
MdagMLinearOperator<DomainWallFermionR,LatticeFermion> HermOp(Ddwf);
|
||
|
|
ConjugateGradient<LatticeFermion> CG(1.0e-8,10000);
|
||
|
|
CG(HermOp,src,result);
|
||
|
|
|
||
|
|
Grid_finalize();
|
||
|
|
}
|