mirror of
https://github.com/paboyle/Grid.git
synced 2024-09-20 17:25:37 +01:00
98 lines
3.5 KiB
C++
98 lines
3.5 KiB
C++
/*************************************************************************************
|
|
|
|
Grid physics library, www.github.com/paboyle/Grid
|
|
|
|
Source file: ./lib/qcd/action/fermion/ContinuedFractionFermion5D.h
|
|
|
|
Copyright (C) 2015
|
|
|
|
Author: Peter Boyle <pabobyle@ph.ed.ac.uk>
|
|
Author: Peter Boyle <paboyle@ph.ed.ac.uk>
|
|
|
|
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_CONTINUED_FRACTION_H
|
|
#define GRID_QCD_CONTINUED_FRACTION_H
|
|
|
|
namespace Grid {
|
|
|
|
namespace QCD {
|
|
|
|
template<class Impl>
|
|
class ContinuedFractionFermion5D : public WilsonFermion5D<Impl>
|
|
{
|
|
public:
|
|
INHERIT_IMPL_TYPES(Impl);
|
|
public:
|
|
|
|
// override multiply
|
|
virtual RealD M (const FermionField &in, FermionField &out);
|
|
virtual RealD Mdag (const FermionField &in, FermionField &out);
|
|
|
|
// half checkerboard operaions
|
|
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);
|
|
|
|
// 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);
|
|
|
|
// virtual void Instantiatable(void)=0;
|
|
virtual void Instantiatable(void) =0;
|
|
|
|
// Efficient support for multigrid coarsening
|
|
virtual void Mdir (const FermionField &in, FermionField &out,int dir,int disp);
|
|
|
|
// Constructors
|
|
ContinuedFractionFermion5D(GaugeField &_Umu,
|
|
GridCartesian &FiveDimGrid,
|
|
GridRedBlackCartesian &FiveDimRedBlackGrid,
|
|
GridCartesian &FourDimGrid,
|
|
GridRedBlackCartesian &FourDimRedBlackGrid,
|
|
RealD _mass,RealD M5,const ImplParams &p= ImplParams());
|
|
|
|
protected:
|
|
|
|
void SetCoefficientsTanh(Approx::zolotarev_data *zdata,RealD scale);
|
|
void SetCoefficientsZolotarev(RealD zolo_hi,Approx::zolotarev_data *zdata);;
|
|
|
|
// Cont frac
|
|
RealD dw_diag;
|
|
RealD mass;
|
|
RealD R;
|
|
RealD ZoloHiInv;
|
|
std::vector<double> Beta;
|
|
std::vector<double> cc;;
|
|
std::vector<double> cc_d;;
|
|
std::vector<double> sqrt_cc;
|
|
std::vector<double> See;
|
|
std::vector<double> Aee;
|
|
|
|
};
|
|
|
|
|
|
}
|
|
}
|
|
|
|
#endif
|