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@ -26,75 +26,75 @@ with this program; if not, write to the Free Software Foundation, Inc.,
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See the full license in the file "LICENSE" in the top level distribution directory
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*************************************************************************************/
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/* END LEGAL */
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/* END LEGAL */
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#ifndef GRID_QCD_ABSTRACT_EOFA_FERMION_H
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#define GRID_QCD_ABSTRACT_EOFA_FERMION_H
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#include <Grid/qcd/action/fermion/CayleyFermion5D.h>
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namespace Grid {
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namespace QCD {
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NAMESPACE_BEGIN(Grid);
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// DJM: Abstract base class for EOFA fermion types.
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// Defines layout of additional EOFA-specific parameters and operators.
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// Use to construct EOFA pseudofermion actions that are agnostic to
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// Shamir / Mobius / etc., and ensure that no one can construct EOFA
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// pseudofermion action with non-EOFA fermion type.
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template<class Impl>
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class AbstractEOFAFermion : public CayleyFermion5D<Impl> {
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public:
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INHERIT_IMPL_TYPES(Impl);
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// DJM: Abstract base class for EOFA fermion types.
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// Defines layout of additional EOFA-specific parameters and operators.
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// Use to construct EOFA pseudofermion actions that are agnostic to
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// Shamir / Mobius / etc., and ensure that no one can construct EOFA
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// pseudofermion action with non-EOFA fermion type.
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template<class Impl>
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class AbstractEOFAFermion : public CayleyFermion5D<Impl> {
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public:
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INHERIT_IMPL_TYPES(Impl);
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public:
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// Fermion operator: D(mq1) + shift*\gamma_{5}*R_{5}*\Delta_{\pm}(mq2,mq3)*P_{\pm}
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RealD mq1;
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RealD mq2;
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RealD mq3;
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RealD shift;
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int pm;
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public:
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// Fermion operator: D(mq1) + shift*\gamma_{5}*R_{5}*\Delta_{\pm}(mq2,mq3)*P_{\pm}
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RealD mq1;
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RealD mq2;
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RealD mq3;
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RealD shift;
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int pm;
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RealD alpha; // Mobius scale
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RealD k; // EOFA normalization constant
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RealD alpha; // Mobius scale
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RealD k; // EOFA normalization constant
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virtual void Instantiatable(void) = 0;
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virtual void Instantiatable(void) = 0;
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// EOFA-specific operations
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// Force user to implement in derived classes
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virtual void Omega (const FermionField& in, FermionField& out, int sign, int dag) = 0;
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virtual void Dtilde (const FermionField& in, FermionField& out) = 0;
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virtual void DtildeInv(const FermionField& in, FermionField& out) = 0;
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// EOFA-specific operations
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// Force user to implement in derived classes
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virtual void Omega (const FermionField& in, FermionField& out, int sign, int dag) = 0;
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virtual void Dtilde (const FermionField& in, FermionField& out) = 0;
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virtual void DtildeInv(const FermionField& in, FermionField& out) = 0;
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// Implement derivatives in base class:
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// for EOFA both DWF and Mobius just need d(Dw)/dU
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virtual void MDeriv(GaugeField& mat, const FermionField& U, const FermionField& V, int dag){
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this->DhopDeriv(mat, U, V, dag);
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};
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virtual void MoeDeriv(GaugeField& mat, const FermionField& U, const FermionField& V, int dag){
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this->DhopDerivOE(mat, U, V, dag);
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};
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virtual void MeoDeriv(GaugeField& mat, const FermionField& U, const FermionField& V, int dag){
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this->DhopDerivEO(mat, U, V, dag);
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};
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// Recompute 5D coefficients for different value of shift constant
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// (needed for heatbath loop over poles)
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virtual void RefreshShiftCoefficients(RealD new_shift) = 0;
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// Constructors
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AbstractEOFAFermion(GaugeField& _Umu, GridCartesian& FiveDimGrid, GridRedBlackCartesian& FiveDimRedBlackGrid,
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GridCartesian& FourDimGrid, GridRedBlackCartesian& FourDimRedBlackGrid,
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RealD _mq1, RealD _mq2, RealD _mq3, RealD _shift, int _pm,
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RealD _M5, RealD _b, RealD _c, const ImplParams& p=ImplParams())
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: CayleyFermion5D<Impl>(_Umu, FiveDimGrid, FiveDimRedBlackGrid, FourDimGrid, FourDimRedBlackGrid,
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_mq1, _M5, p), mq1(_mq1), mq2(_mq2), mq3(_mq3), shift(_shift), pm(_pm)
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{
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int Ls = this->Ls;
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this->alpha = _b + _c;
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this->k = this->alpha * (_mq3-_mq2) * std::pow(this->alpha+1.0,2*Ls) /
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( std::pow(this->alpha+1.0,Ls) + _mq2*std::pow(this->alpha-1.0,Ls) ) /
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( std::pow(this->alpha+1.0,Ls) + _mq3*std::pow(this->alpha-1.0,Ls) );
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};
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// Implement derivatives in base class:
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// for EOFA both DWF and Mobius just need d(Dw)/dU
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virtual void MDeriv(GaugeField& mat, const FermionField& U, const FermionField& V, int dag){
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this->DhopDeriv(mat, U, V, dag);
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};
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}}
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virtual void MoeDeriv(GaugeField& mat, const FermionField& U, const FermionField& V, int dag){
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this->DhopDerivOE(mat, U, V, dag);
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};
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virtual void MeoDeriv(GaugeField& mat, const FermionField& U, const FermionField& V, int dag){
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this->DhopDerivEO(mat, U, V, dag);
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};
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// Recompute 5D coefficients for different value of shift constant
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// (needed for heatbath loop over poles)
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virtual void RefreshShiftCoefficients(RealD new_shift) = 0;
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// Constructors
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AbstractEOFAFermion(GaugeField& _Umu, GridCartesian& FiveDimGrid, GridRedBlackCartesian& FiveDimRedBlackGrid,
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GridCartesian& FourDimGrid, GridRedBlackCartesian& FourDimRedBlackGrid,
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RealD _mq1, RealD _mq2, RealD _mq3, RealD _shift, int _pm,
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RealD _M5, RealD _b, RealD _c, const ImplParams& p=ImplParams())
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: CayleyFermion5D<Impl>(_Umu, FiveDimGrid, FiveDimRedBlackGrid, FourDimGrid, FourDimRedBlackGrid,
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_mq1, _M5, p), mq1(_mq1), mq2(_mq2), mq3(_mq3), shift(_shift), pm(_pm)
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{
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int Ls = this->Ls;
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this->alpha = _b + _c;
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this->k = this->alpha * (_mq3-_mq2) * std::pow(this->alpha+1.0,2*Ls) /
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( std::pow(this->alpha+1.0,Ls) + _mq2*std::pow(this->alpha-1.0,Ls) ) /
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( std::pow(this->alpha+1.0,Ls) + _mq3*std::pow(this->alpha-1.0,Ls) );
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};
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};
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NAMESPACE_END(Grid);
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#endif
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