mirror of
https://github.com/paboyle/Grid.git
synced 2024-11-10 07:55:35 +00:00
84a66476ab
Allows multi-precision work and paves the way for alternate BC's and such like allowing for example G-parity which is important for K pipi programme. In particular, can drive an extra flavour index into the fermion fields using template types.
49 lines
1.1 KiB
C++
49 lines
1.1 KiB
C++
#include <Grid.h>
|
|
|
|
using namespace std;
|
|
using namespace Grid;
|
|
using namespace Grid::QCD;
|
|
|
|
template<class d>
|
|
struct scal {
|
|
d internal;
|
|
};
|
|
|
|
Gamma::GammaMatrix Gmu [] = {
|
|
Gamma::GammaX,
|
|
Gamma::GammaY,
|
|
Gamma::GammaZ,
|
|
Gamma::GammaT
|
|
};
|
|
|
|
int main (int argc, char ** argv)
|
|
{
|
|
Grid_init(&argc,&argv);
|
|
|
|
|
|
std::vector<int> latt_size = GridDefaultLatt();
|
|
std::vector<int> simd_layout = GridDefaultSimd(Nd,vComplex::Nsimd());
|
|
std::vector<int> mpi_layout = GridDefaultMpi();
|
|
GridCartesian Grid(latt_size,simd_layout,mpi_layout);
|
|
GridRedBlackCartesian RBGrid(latt_size,simd_layout,mpi_layout);
|
|
|
|
std::vector<int> seeds({1,2,3,4});
|
|
GridParallelRNG pRNG(&Grid); pRNG.SeedFixedIntegers(seeds);
|
|
|
|
LatticeGaugeField Umu(&Grid); random(pRNG,Umu);
|
|
|
|
LatticeFermion src(&Grid); random(pRNG,src);
|
|
LatticeFermion result(&Grid); result=zero;
|
|
LatticeFermion resid(&Grid);
|
|
|
|
RealD mass=0.5;
|
|
WilsonFermionR Dw(Umu,Grid,RBGrid,mass);
|
|
|
|
ConjugateGradient<LatticeFermion> CG(1.0e-8,10000);
|
|
SchurRedBlackDiagMooeeSolve<LatticeFermion> SchurSolver(CG);
|
|
|
|
SchurSolver(Dw,src,result);
|
|
|
|
Grid_finalize();
|
|
}
|