1
0
mirror of https://github.com/paboyle/Grid.git synced 2024-09-20 17:25:37 +01:00
Grid/lib/qcd/action/fermion/FermionOperator.h
Peter Boyle a842a6c94d One flavour rational unprec added; untested but does compile.
Moving param structs into a single header for later connection to file I/O using
macromagic.h
2015-08-18 14:40:08 +01:00

76 lines
3.7 KiB
C++

#ifndef GRID_QCD_FERMION_OPERATOR_H
#define GRID_QCD_FERMION_OPERATOR_H
namespace Grid {
namespace QCD {
////////////////////////////////////////////////////////////////
// Allow to select between gauge representation rank bc's, flavours etc.
// and single/double precision.
////////////////////////////////////////////////////////////////
template<class Impl>
class FermionOperator : public CheckerBoardedSparseMatrixBase<typename Impl::FermionField>, public Impl
{
public:
INHERIT_IMPL_TYPES(Impl);
FermionOperator(const ImplParams &p= ImplParams()) : Impl(p) {};
GridBase * Grid(void) { return FermionGrid(); }; // this is all the linalg routines need to know
GridBase * RedBlackGrid(void) { return FermionRedBlackGrid(); };
virtual GridBase *FermionGrid(void) =0;
virtual GridBase *FermionRedBlackGrid(void) =0;
virtual GridBase *GaugeGrid(void) =0;
virtual GridBase *GaugeRedBlackGrid(void) =0;
// override multiply
virtual RealD M (const FermionField &in, FermionField &out)=0;
virtual RealD Mdag (const FermionField &in, FermionField &out)=0;
// half checkerboard operaions
virtual int ConstEE(void) { return 1; }; // clover returns zero as EE depends on gauge field
virtual void Meooe (const FermionField &in, FermionField &out)=0;
virtual void MeooeDag (const FermionField &in, FermionField &out)=0;
virtual void Mooee (const FermionField &in, FermionField &out)=0;
virtual void MooeeDag (const FermionField &in, FermionField &out)=0;
virtual void MooeeInv (const FermionField &in, FermionField &out)=0;
virtual void MooeeInvDag (const FermionField &in, FermionField &out)=0;
// non-hermitian hopping term; half cb or both
virtual void Dhop (const FermionField &in, FermionField &out,int dag)=0;
virtual void DhopOE(const FermionField &in, FermionField &out,int dag)=0;
virtual void DhopEO(const FermionField &in, FermionField &out,int dag)=0;
virtual void DhopDir(const FermionField &in, FermionField &out,int dir,int disp)=0; // implemented by WilsonFermion and WilsonFermion5D
// force terms; five routines; default to Dhop on diagonal
virtual void MDeriv (GaugeField &mat,const FermionField &U,const FermionField &V,int dag){DhopDeriv(mat,U,V,dag);};
virtual void MoeDeriv(GaugeField &mat,const FermionField &U,const FermionField &V,int dag){DhopDerivOE(mat,U,V,dag);};
virtual void MeoDeriv(GaugeField &mat,const FermionField &U,const FermionField &V,int dag){DhopDerivEO(mat,U,V,dag);};
virtual void MooDeriv(GaugeField &mat,const FermionField &U,const FermionField &V,int dag){mat=zero;}; // Clover can override these
virtual void MeeDeriv(GaugeField &mat,const FermionField &U,const FermionField &V,int dag){mat=zero;};
virtual void DhopDeriv (GaugeField &mat,const FermionField &U,const FermionField &V,int dag)=0;
virtual void DhopDerivEO(GaugeField &mat,const FermionField &U,const FermionField &V,int dag)=0;
virtual void DhopDerivOE(GaugeField &mat,const FermionField &U,const FermionField &V,int dag)=0;
virtual void Mdiag (const FermionField &in, FermionField &out) { Mooee(in,out);}; // Same as Mooee applied to both CB's
virtual void Mdir (const FermionField &in, FermionField &out,int dir,int disp)=0; // case by case Wilson, Clover, Cayley, ContFrac, PartFrac
///////////////////////////////////////////////
// Updates gauge field during HMC
///////////////////////////////////////////////
virtual void ImportGauge(const GaugeField & _U)=0;
};
}
}
#endif