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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.
48 lines
1.2 KiB
C++
48 lines
1.2 KiB
C++
#ifndef OVERLAP_WILSON_PARTFRAC_ZOLOTAREV_FERMION_H
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#define OVERLAP_WILSON_PARTFRAC_ZOLOTAREV_FERMION_H
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#include <Grid.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 OverlapWilsonPartialFractionZolotarevFermion : public PartialFractionFermion5D<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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virtual void Instantiatable(void){};
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// Constructors
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OverlapWilsonPartialFractionZolotarevFermion(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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RealD lo,RealD hi):
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// b+c=scale, b-c = 0 <=> b =c = scale/2
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PartialFractionFermion5D<Impl>(_Umu,
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FiveDimGrid,
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FiveDimRedBlackGrid,
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FourDimGrid,
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FourDimRedBlackGrid,_mass,_M5)
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{
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assert((this->Ls&0x1)==1); // Odd Ls required
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int nrational=this->Ls;// Odd rational order
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RealD eps = lo/hi;
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Approx::zolotarev_data *zdata = Approx::zolotarev(eps,nrational,0);
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this->SetCoefficientsZolotarev(hi,zdata);
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Approx::zolotarev_free(zdata);
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}
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};
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}
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}
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#endif
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