mirror of
https://github.com/paboyle/Grid.git
synced 2024-11-10 15:55:37 +00:00
1b3c93e22a
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.
78 lines
2.8 KiB
C++
78 lines
2.8 KiB
C++
#ifndef GRID_QCD_CAYLEY_FERMION_H
|
|
#define GRID_QCD_CAYLEY_FERMION_H
|
|
|
|
namespace Grid {
|
|
|
|
namespace QCD {
|
|
|
|
template<class Impl>
|
|
class CayleyFermion5D : public WilsonFermion5D<Impl>
|
|
{
|
|
public:
|
|
#include <qcd/action/fermion/FermionImplTypedefs.h>
|
|
public:
|
|
|
|
// override multiply
|
|
virtual RealD M (const FermionField &in, FermionField &out);
|
|
virtual RealD Mdag (const FermionField &in, FermionField &out);
|
|
|
|
// half checkerboard operations
|
|
virtual void Meooe (const FermionField &in, FermionField &out);
|
|
virtual void MeooeDag (const FermionField &in, FermionField &out);
|
|
virtual void Mooee (const FermionField &in, FermionField &out);
|
|
virtual void MooeeDag (const FermionField &in, FermionField &out);
|
|
virtual void MooeeInv (const FermionField &in, FermionField &out);
|
|
virtual void MooeeInvDag (const FermionField &in, FermionField &out);
|
|
virtual void Instantiatable(void)=0;
|
|
|
|
// force terms; five routines; default to Dhop on diagonal
|
|
virtual void MDeriv (GaugeField &mat,const FermionField &U,const FermionField &V,int dag);
|
|
virtual void MoeDeriv(GaugeField &mat,const FermionField &U,const FermionField &V,int dag);
|
|
virtual void MeoDeriv(GaugeField &mat,const FermionField &U,const FermionField &V,int dag);
|
|
|
|
// Efficient support for multigrid coarsening
|
|
virtual void Mdir (const FermionField &in, FermionField &out,int dir,int disp);
|
|
|
|
void Meooe5D (const FermionField &in, FermionField &out);
|
|
void MeooeDag5D (const FermionField &in, FermionField &out);
|
|
|
|
// protected:
|
|
RealD mass;
|
|
|
|
// Cayley form Moebius (tanh and zolotarev)
|
|
std::vector<RealD> omega;
|
|
std::vector<RealD> bs; // S dependent coeffs
|
|
std::vector<RealD> cs;
|
|
std::vector<RealD> as;
|
|
// For preconditioning Cayley form
|
|
std::vector<RealD> bee;
|
|
std::vector<RealD> cee;
|
|
std::vector<RealD> aee;
|
|
std::vector<RealD> beo;
|
|
std::vector<RealD> ceo;
|
|
std::vector<RealD> aeo;
|
|
// LDU factorisation of the eeoo matrix
|
|
std::vector<RealD> lee;
|
|
std::vector<RealD> leem;
|
|
std::vector<RealD> uee;
|
|
std::vector<RealD> ueem;
|
|
std::vector<RealD> dee;
|
|
|
|
// Constructors
|
|
CayleyFermion5D(GaugeField &_Umu,
|
|
GridCartesian &FiveDimGrid,
|
|
GridRedBlackCartesian &FiveDimRedBlackGrid,
|
|
GridCartesian &FourDimGrid,
|
|
GridRedBlackCartesian &FourDimRedBlackGrid,
|
|
RealD _mass,RealD _M5);
|
|
|
|
protected:
|
|
void SetCoefficientsZolotarev(RealD zolohi,Approx::zolotarev_data *zdata,RealD b,RealD c);
|
|
void SetCoefficientsTanh(Approx::zolotarev_data *zdata,RealD b,RealD c);
|
|
};
|
|
|
|
}
|
|
}
|
|
|
|
#endif
|