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aeb7442d8f
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.
70 lines
2.3 KiB
C++
70 lines
2.3 KiB
C++
#ifndef GRID_QCD_CONTINUED_FRACTION_H
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#define GRID_QCD_CONTINUED_FRACTION_H
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namespace Grid {
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namespace QCD {
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template<class Impl>
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class ContinuedFractionFermion5D : public WilsonFermion5D<Impl>
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{
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public:
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#include <qcd/action/fermion/FermionImplTypedefs.h>
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public:
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// override multiply
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virtual RealD M (const FermionField &in, FermionField &out);
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virtual RealD Mdag (const FermionField &in, FermionField &out);
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// half checkerboard operaions
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virtual void Meooe (const FermionField &in, FermionField &out);
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virtual void MeooeDag (const FermionField &in, FermionField &out);
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virtual void Mooee (const FermionField &in, FermionField &out);
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virtual void MooeeDag (const FermionField &in, FermionField &out);
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virtual void MooeeInv (const FermionField &in, FermionField &out);
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virtual void MooeeInvDag (const FermionField &in, FermionField &out);
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// force terms; five routines; default to Dhop on diagonal
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virtual void MDeriv (GaugeField &mat,const FermionField &U,const FermionField &V,int dag);
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virtual void MoeDeriv(GaugeField &mat,const FermionField &U,const FermionField &V,int dag);
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virtual void MeoDeriv(GaugeField &mat,const FermionField &U,const FermionField &V,int dag);
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// virtual void Instantiatable(void)=0;
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virtual void Instantiatable(void) =0;
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// Efficient support for multigrid coarsening
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virtual void Mdir (const FermionField &in, FermionField &out,int dir,int disp);
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// Constructors
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ContinuedFractionFermion5D(GaugeField &_Umu,
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GridCartesian &FiveDimGrid,
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GridRedBlackCartesian &FiveDimRedBlackGrid,
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GridCartesian &FourDimGrid,
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GridRedBlackCartesian &FourDimRedBlackGrid,
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RealD _mass,RealD M5);
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protected:
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void SetCoefficientsTanh(Approx::zolotarev_data *zdata,RealD scale);
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void SetCoefficientsZolotarev(RealD zolo_hi,Approx::zolotarev_data *zdata);;
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// Cont frac
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RealD dw_diag;
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RealD mass;
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RealD R;
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RealD ZoloHiInv;
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std::vector<double> Beta;
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std::vector<double> cc;;
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std::vector<double> cc_d;;
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std::vector<double> sqrt_cc;
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std::vector<double> See;
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std::vector<double> Aee;
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};
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}
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}
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#endif
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