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paboyle 2018-01-14 23:16:08 +00:00
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lib/qcd/action/fermion/OverlapWilsonPartialFractionZolotarevFermion.h
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@ -1,4 +1,4 @@
/************************************************************************************* /*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid Grid physics library, www.github.com/paboyle/Grid
@ -24,51 +24,50 @@ Author: Peter Boyle <paboyle@ph.ed.ac.uk>
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
See the full license in the file "LICENSE" in the top level distribution directory See the full license in the file "LICENSE" in the top level distribution directory
*************************************************************************************/ *************************************************************************************/
/* END LEGAL */ /* END LEGAL */
#ifndef OVERLAP_WILSON_PARTFRAC_ZOLOTAREV_FERMION_H #ifndef OVERLAP_WILSON_PARTFRAC_ZOLOTAREV_FERMION_H
#define OVERLAP_WILSON_PARTFRAC_ZOLOTAREV_FERMION_H #define OVERLAP_WILSON_PARTFRAC_ZOLOTAREV_FERMION_H
#include <Grid/qcd/action/fermion/FermionCore.h> #include <Grid/qcd/action/fermion/FermionCore.h>
namespace Grid { NAMESPACE_BEGIN(Grid);
namespace QCD { template<class Impl>
class OverlapWilsonPartialFractionZolotarevFermion : public PartialFractionFermion5D<Impl>
{
public:
INHERIT_IMPL_TYPES(Impl);
template<class Impl> virtual void Instantiatable(void){};
class OverlapWilsonPartialFractionZolotarevFermion : public PartialFractionFermion5D<Impl> // Constructors
{ OverlapWilsonPartialFractionZolotarevFermion(GaugeField &_Umu,
public: GridCartesian &FiveDimGrid,
INHERIT_IMPL_TYPES(Impl); GridRedBlackCartesian &FiveDimRedBlackGrid,
GridCartesian &FourDimGrid,
virtual void Instantiatable(void){}; GridRedBlackCartesian &FourDimRedBlackGrid,
// Constructors RealD _mass,RealD _M5,
OverlapWilsonPartialFractionZolotarevFermion(GaugeField &_Umu, RealD lo,RealD hi,const ImplParams &p= ImplParams()):
GridCartesian &FiveDimGrid,
GridRedBlackCartesian &FiveDimRedBlackGrid,
GridCartesian &FourDimGrid,
GridRedBlackCartesian &FourDimRedBlackGrid,
RealD _mass,RealD _M5,
RealD lo,RealD hi,const ImplParams &p= ImplParams()):
// b+c=scale, b-c = 0 <=> b =c = scale/2 // b+c=scale, b-c = 0 <=> b =c = scale/2
PartialFractionFermion5D<Impl>(_Umu, PartialFractionFermion5D<Impl>(_Umu,
FiveDimGrid, FiveDimGrid,
FiveDimRedBlackGrid, FiveDimRedBlackGrid,
FourDimGrid, FourDimGrid,
FourDimRedBlackGrid,_mass,_M5,p) FourDimRedBlackGrid,_mass,_M5,p)
{ {
assert((this->Ls&0x1)==1); // Odd Ls required assert((this->Ls&0x1)==1); // Odd Ls required
int nrational=this->Ls;// Odd rational order int nrational=this->Ls;// Odd rational order
RealD eps = lo/hi; RealD eps = lo/hi;
Approx::zolotarev_data *zdata = Approx::zolotarev(eps,nrational,0); Approx::zolotarev_data *zdata = Approx::zolotarev(eps,nrational,0);
this->SetCoefficientsZolotarev(hi,zdata); this->SetCoefficientsZolotarev(hi,zdata);
Approx::zolotarev_free(zdata); Approx::zolotarev_free(zdata);
}
};
} }
} };
NAMESPACE_END(Grid);
#endif #endif