mirror of
https://github.com/paboyle/Grid.git
synced 2024-11-10 07:55:35 +00:00
58 lines
1.5 KiB
C++
58 lines
1.5 KiB
C++
#include <Grid.h>
|
|
|
|
using namespace std;
|
|
using namespace Grid;
|
|
using namespace Grid::QCD;
|
|
|
|
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); gaussian(RNG5,src);
|
|
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 mass=0.1;
|
|
RealD M5=1.8;
|
|
DomainWallFermionR Ddwf(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5);
|
|
|
|
MdagMLinearOperator<DomainWallFermionR,LatticeFermion> HermOp(Ddwf);
|
|
|
|
const int Nk = 10;
|
|
const int Np = 1;
|
|
RealD enorm = 1.0;
|
|
RealD vthrs = 1;
|
|
const int Nit= 1000;
|
|
|
|
ImplicitlyRestartedLanczos<LatticeFermion> IRL(HermOp,PolyX,
|
|
Nk,Np,enorm,vthrs,Nit);
|
|
|
|
|
|
std::vector<RealD> eval(Nk);
|
|
std::vector<LatticeFermion> evec(Nk,FGrid);
|
|
IRL.calc(eval,evec,
|
|
src,
|
|
Nsbt,
|
|
Nconv);
|
|
|
|
|
|
Grid_finalize();
|
|
}
|