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105 lines
4.2 KiB
C++
105 lines
4.2 KiB
C++
/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: ./lib/qcd/action/fermion/MobiusEOFAFermion.h
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Copyright (C) 2017
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Author: Peter Boyle <pabobyle@ph.ed.ac.uk>
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Author: Peter Boyle <paboyle@ph.ed.ac.uk>
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Author: David Murphy <dmurphy@phys.columbia.edu>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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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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#ifndef GRID_QCD_MOBIUS_EOFA_FERMION_H
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#define GRID_QCD_MOBIUS_EOFA_FERMION_H
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#include <Grid/qcd/action/fermion/AbstractEOFAFermion.h>
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NAMESPACE_BEGIN(Grid);
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template<class Impl>
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class MobiusEOFAFermion : public AbstractEOFAFermion<Impl>
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{
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public:
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INHERIT_IMPL_TYPES(Impl);
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public:
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// Shift operator coefficients for red-black preconditioned Mobius EOFA
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Vector<Coeff_t> Mooee_shift;
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Vector<Coeff_t> MooeeInv_shift_lc;
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Vector<Coeff_t> MooeeInv_shift_norm;
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Vector<Coeff_t> MooeeInvDag_shift_lc;
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Vector<Coeff_t> MooeeInvDag_shift_norm;
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virtual void Instantiatable(void) {};
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// EOFA-specific operations
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virtual void Omega (const FermionField& in, FermionField& out, int sign, int dag);
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virtual void Dtilde (const FermionField& in, FermionField& out);
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virtual void DtildeInv (const FermionField& in, FermionField& out);
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// override multiply
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virtual void M (const FermionField& in, FermionField& out);
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virtual void Mdag (const FermionField& in, FermionField& out);
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// half checkerboard operations
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virtual void Mooee (const FermionField& in, FermionField& out);
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virtual void MooeeDag (const FermionField& in, FermionField& out);
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virtual void MooeeInv (const FermionField& in, FermionField& out);
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virtual void MooeeInv_shift (const FermionField& in, FermionField& out);
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virtual void MooeeInvDag (const FermionField& in, FermionField& out);
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virtual void MooeeInvDag_shift(const FermionField& in, FermionField& out);
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virtual void M5D (const FermionField& psi, FermionField& chi);
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virtual void M5Ddag (const FermionField& psi, FermionField& chi);
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/////////////////////////////////////////////////////
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// Instantiate different versions depending on Impl
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/////////////////////////////////////////////////////
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void M5D(const FermionField& psi, const FermionField& phi, FermionField& chi,
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Vector<Coeff_t>& lower, Vector<Coeff_t>& diag, Vector<Coeff_t>& upper);
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void M5D_shift(const FermionField& psi, const FermionField& phi, FermionField& chi,
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Vector<Coeff_t>& lower, Vector<Coeff_t>& diag, Vector<Coeff_t>& upper,
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Vector<Coeff_t>& shift_coeffs);
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void M5Ddag(const FermionField& psi, const FermionField& phi, FermionField& chi,
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Vector<Coeff_t>& lower, Vector<Coeff_t>& diag, Vector<Coeff_t>& upper);
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void M5Ddag_shift(const FermionField& psi, const FermionField& phi, FermionField& chi,
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Vector<Coeff_t>& lower, Vector<Coeff_t>& diag, Vector<Coeff_t>& upper,
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Vector<Coeff_t>& shift_coeffs);
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virtual void RefreshShiftCoefficients(RealD new_shift);
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// Constructors
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MobiusEOFAFermion(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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protected:
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void SetCoefficientsPrecondShiftOps(void);
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};
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NAMESPACE_END(Grid);
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#endif
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