/************************************************************************************* Grid physics library, www.github.com/paboyle/Grid Source file: ./lib/qcd/action/fermion/WilsonFermion.h Copyright (C) 2015 Author: Peter Boyle Author: Peter Boyle Author: paboyle This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. See the full license in the file "LICENSE" in the top level distribution directory *************************************************************************************/ /* END LEGAL */ #ifndef GRID_QCD_WILSON_FERMION_H #define GRID_QCD_WILSON_FERMION_H namespace Grid { namespace QCD { class WilsonFermionStatic { public: static int HandOptDslash; // these are a temporary hack static int MortonOrder; static const std::vector directions; static const std::vector displacements; static const int npoint = 8; }; template class WilsonFermion : public WilsonKernels, public WilsonFermionStatic { public: INHERIT_IMPL_TYPES(Impl); typedef WilsonKernels Kernels; /////////////////////////////////////////////////////////////// // Implement the abstract base /////////////////////////////////////////////////////////////// GridBase *GaugeGrid(void) { return _grid; } GridBase *GaugeRedBlackGrid(void) { return _cbgrid; } GridBase *FermionGrid(void) { return _grid; } GridBase *FermionRedBlackGrid(void) { return _cbgrid; } FermionField _tmp; FermionField &tmp(void) { return _tmp; } ////////////////////////////////////////////////////////////////// // override multiply; cut number routines if pass dagger argument // and also make interface more uniformly consistent ////////////////////////////////////////////////////////////////// RealD M(const FermionField &in, FermionField &out); RealD Mdag(const FermionField &in, FermionField &out); ///////////////////////////////////////////////////////// // half checkerboard operations // could remain virtual so we can derive Clover from Wilson base ///////////////////////////////////////////////////////// void Meooe(const FermionField &in, FermionField &out); void MeooeDag(const FermionField &in, FermionField &out); // allow override for twisted mass and clover virtual void Mooee(const FermionField &in, FermionField &out); virtual void MooeeDag(const FermionField &in, FermionField &out); virtual void MooeeInv(const FermionField &in, FermionField &out); virtual void MooeeInvDag(const FermionField &in, FermionField &out); virtual void MomentumSpacePropagator(FermionField &out,const FermionField &in,RealD _mass) ; //////////////////////// // Derivative interface //////////////////////// // Interface calls an internal routine void DhopDeriv(GaugeField &mat,const FermionField &U,const FermionField &V,int dag); void DhopDerivOE(GaugeField &mat,const FermionField &U,const FermionField &V,int dag); void DhopDerivEO(GaugeField &mat,const FermionField &U,const FermionField &V,int dag); /////////////////////////////////////////////////////////////// // non-hermitian hopping term; half cb or both /////////////////////////////////////////////////////////////// void Dhop(const FermionField &in, FermionField &out, int dag); void DhopOE(const FermionField &in, FermionField &out, int dag); void DhopEO(const FermionField &in, FermionField &out, int dag); /////////////////////////////////////////////////////////////// // Multigrid assistance; force term uses too /////////////////////////////////////////////////////////////// void Mdir(const FermionField &in, FermionField &out, int dir, int disp); void DhopDir(const FermionField &in, FermionField &out, int dir, int disp); void DhopDirDisp(const FermionField &in, FermionField &out, int dirdisp, int gamma, int dag); /////////////////////////////////////////////////////////////// // Extra methods added by derived /////////////////////////////////////////////////////////////// void DerivInternal(StencilImpl &st, DoubledGaugeField &U, GaugeField &mat, const FermionField &A, const FermionField &B, int dag); void DhopInternal(StencilImpl &st, LebesgueOrder &lo, DoubledGaugeField &U, const FermionField &in, FermionField &out, int dag); // Constructor WilsonFermion(GaugeField &_Umu, GridCartesian &Fgrid, GridRedBlackCartesian &Hgrid, RealD _mass, const ImplParams &p = ImplParams()); // DoubleStore impl dependent void ImportGauge(const GaugeField &_Umu); /////////////////////////////////////////////////////////////// // Data members require to support the functionality /////////////////////////////////////////////////////////////// // protected: public: RealD mass; GridBase *_grid; GridBase *_cbgrid; // Defines the stencils for even and odd StencilImpl Stencil; StencilImpl StencilEven; StencilImpl StencilOdd; // Copy of the gauge field , with even and odd subsets DoubledGaugeField Umu; DoubledGaugeField UmuEven; DoubledGaugeField UmuOdd; LebesgueOrder Lebesgue; LebesgueOrder LebesgueEvenOdd; /////////////////////////////////////////////////////////////// // Conserved current utilities /////////////////////////////////////////////////////////////// void ContractConservedCurrent(PropagatorField &q_in_1, PropagatorField &q_in_2, PropagatorField &q_out, Current curr_type, unsigned int mu); void SeqConservedCurrent(PropagatorField &q_in, PropagatorField &q_out, Current curr_type, unsigned int mu, std::vector mom, unsigned int tmin, unsigned int tmax); }; typedef WilsonFermion WilsonFermionF; typedef WilsonFermion WilsonFermionD; } } #endif