mirror of
https://github.com/paboyle/Grid.git
synced 2024-11-10 15:55:37 +00:00
84a66476ab
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.
54 lines
1.3 KiB
C++
54 lines
1.3 KiB
C++
#ifndef GRID_QCD_MOBIUS_ZOLOTAREV_FERMION_H
|
|
#define GRID_QCD_MOBIUS_ZOLOTAREV_FERMION_H
|
|
|
|
#include <Grid.h>
|
|
|
|
namespace Grid {
|
|
|
|
namespace QCD {
|
|
|
|
template<class Impl>
|
|
class MobiusZolotarevFermion : public CayleyFermion5D<Impl>
|
|
{
|
|
public:
|
|
#include <qcd/action/fermion/FermionImplTypedefs.h>
|
|
public:
|
|
|
|
virtual void Instantiatable(void) {};
|
|
// Constructors
|
|
MobiusZolotarevFermion(GaugeField &_Umu,
|
|
GridCartesian &FiveDimGrid,
|
|
GridRedBlackCartesian &FiveDimRedBlackGrid,
|
|
GridCartesian &FourDimGrid,
|
|
GridRedBlackCartesian &FourDimRedBlackGrid,
|
|
RealD _mass,RealD _M5,
|
|
RealD b, RealD c,
|
|
RealD lo, RealD hi) :
|
|
|
|
CayleyFermion5D<Impl>(_Umu,
|
|
FiveDimGrid,
|
|
FiveDimRedBlackGrid,
|
|
FourDimGrid,
|
|
FourDimRedBlackGrid,_mass,_M5)
|
|
|
|
{
|
|
RealD eps = lo/hi;
|
|
|
|
Approx::zolotarev_data *zdata = Approx::zolotarev(eps,this->Ls,0);
|
|
assert(zdata->n==this->Ls);
|
|
|
|
std::cout<<GridLogMessage << "MobiusZolotarevFermion (b="<<b<<",c="<<c<<") with Ls= "<<this->Ls<<" Zolotarev range ["<<lo<<","<<hi<<"]"<<std::endl;
|
|
|
|
// Call base setter
|
|
this->SetCoefficientsZolotarev(hi,zdata,b,c);
|
|
|
|
Approx::zolotarev_free(zdata);
|
|
}
|
|
|
|
};
|
|
|
|
}
|
|
}
|
|
|
|
#endif
|