mirror of
https://github.com/paboyle/Grid.git
synced 2024-11-14 09:45:36 +00:00
76 lines
2.3 KiB
C++
76 lines
2.3 KiB
C++
/*************************************************************************************
|
|
|
|
Grid physics library, www.github.com/paboyle/Grid
|
|
|
|
Source file: ./tests/Test_wilson_cg_schur.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
|
|
};
|
|
|
|
int main (int argc, char ** argv)
|
|
{
|
|
Grid_init(&argc,&argv);
|
|
|
|
|
|
Coordinate latt_size = GridDefaultLatt();
|
|
Coordinate simd_layout = GridDefaultSimd(Nd,vComplex::Nsimd());
|
|
Coordinate mpi_layout = GridDefaultMpi();
|
|
GridCartesian Grid(latt_size,simd_layout,mpi_layout);
|
|
GridRedBlackCartesian RBGrid(&Grid);
|
|
|
|
std::vector<int> seeds({1,2,3,4});
|
|
GridParallelRNG pRNG(&Grid); pRNG.SeedFixedIntegers(seeds);
|
|
|
|
LatticeGaugeField Umu(&Grid); SU<Nc>::HotConfiguration(pRNG,Umu);
|
|
|
|
LatticeFermion src(&Grid); random(pRNG,src);
|
|
LatticeFermion result(&Grid); result=Zero();
|
|
LatticeFermion resid(&Grid);
|
|
|
|
RealD mass=0.5;
|
|
WilsonFermionD Dw(Umu,Grid,RBGrid,mass);
|
|
|
|
ConjugateGradient<LatticeFermion> CG(1.0e-8,10000);
|
|
SchurRedBlackDiagMooeeSolve<LatticeFermion> SchurSolver(CG);
|
|
|
|
SchurSolver(Dw,src,result);
|
|
|
|
Grid_finalize();
|
|
}
|