mirror of
https://github.com/paboyle/Grid.git
synced 2024-11-10 15:55:37 +00:00
119 lines
5.4 KiB
C++
119 lines
5.4 KiB
C++
/*************************************************************************************
|
|
|
|
Grid physics library, www.github.com/paboyle/Grid
|
|
|
|
Source file: ./lib/qcd/action/fermion/FermionOperator.h
|
|
|
|
Copyright (C) 2015
|
|
|
|
Author: Peter Boyle <pabobyle@ph.ed.ac.uk>
|
|
Author: Peter Boyle <paboyle@ph.ed.ac.uk>
|
|
Author: Peter Boyle <peterboyle@Peters-MacBook-Pro-2.local>
|
|
|
|
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 */
|
|
#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
|
|
|
|
|
|
virtual void MomentumSpacePropagator(FermionField &out,const FermionField &in,RealD _m) { assert(0);};
|
|
|
|
virtual void FreePropagator(const FermionField &in,FermionField &out,RealD mass) {
|
|
FFT theFFT((GridCartesian *) in._grid);
|
|
|
|
FermionField in_k(in._grid);
|
|
FermionField prop_k(in._grid);
|
|
|
|
theFFT.FFT_all_dim(in_k,in,FFT::forward);
|
|
this->MomentumSpacePropagator(prop_k,in_k,mass);
|
|
theFFT.FFT_all_dim(out,prop_k,FFT::backward);
|
|
};
|
|
|
|
///////////////////////////////////////////////
|
|
// Updates gauge field during HMC
|
|
///////////////////////////////////////////////
|
|
virtual void ImportGauge(const GaugeField & _U)=0;
|
|
|
|
};
|
|
|
|
}
|
|
}
|
|
|
|
#endif
|