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104 lines
3.8 KiB
C++
104 lines
3.8 KiB
C++
/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: ./lib/qcd/action/pseudofermion/OneFlavourEvenOddRationalRatio.h
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Copyright (C) 2015
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Author: Peter Boyle <paboyle@ph.ed.ac.uk>
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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 QCD_PSEUDOFERMION_ONE_FLAVOUR_EVEN_ODD_RATIONAL_RATIO_H
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#define QCD_PSEUDOFERMION_ONE_FLAVOUR_EVEN_ODD_RATIONAL_RATIO_H
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NAMESPACE_BEGIN(Grid);
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///////////////////////////////////////
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// One flavour rational
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///////////////////////////////////////
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// S_f = chi^dag* P(V^dag*V)/Q(V^dag*V)* N(M^dag*M)/D(M^dag*M)* P(V^dag*V)/Q(V^dag*V)* chi
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//
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// Here P/Q \sim R_{1/4} ~ (V^dagV)^{1/4}
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// Here N/D \sim R_{-1/2} ~ (M^dagM)^{-1/2}
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template<class Impl>
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class OneFlavourEvenOddRatioRationalPseudoFermionAction : public GeneralEvenOddRatioRationalPseudoFermionAction<Impl> {
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public:
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typedef OneFlavourRationalParams Params;
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private:
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static RationalActionParams transcribe(const Params &in){
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RationalActionParams out;
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out.inv_pow = 2;
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out.lo = in.lo;
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out.hi = in.hi;
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out.MaxIter = in.MaxIter;
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out.action_tolerance = out.md_tolerance = in.tolerance;
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out.action_degree = out.md_degree = in.degree;
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out.precision = in.precision;
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out.BoundsCheckFreq = in.BoundsCheckFreq;
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return out;
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}
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public:
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OneFlavourEvenOddRatioRationalPseudoFermionAction(FermionOperator<Impl> &_NumOp,
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FermionOperator<Impl> &_DenOp,
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const Params & p
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) :
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GeneralEvenOddRatioRationalPseudoFermionAction<Impl>(_NumOp, _DenOp, transcribe(p)){}
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virtual std::string action_name(){return "OneFlavourEvenOddRatioRationalPseudoFermionAction";}
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};
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template<class Impl,class ImplF>
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class OneFlavourEvenOddRatioRationalMixedPrecPseudoFermionAction
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: public GeneralEvenOddRatioRationalMixedPrecPseudoFermionAction<Impl,ImplF> {
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public:
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typedef OneFlavourRationalParams Params;
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private:
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static RationalActionParams transcribe(const Params &in){
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RationalActionParams out;
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out.inv_pow = 2;
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out.lo = in.lo;
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out.hi = in.hi;
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out.MaxIter = in.MaxIter;
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out.action_tolerance = out.md_tolerance = in.tolerance;
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out.action_degree = out.md_degree = in.degree;
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out.precision = in.precision;
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out.BoundsCheckFreq = in.BoundsCheckFreq;
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return out;
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}
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public:
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OneFlavourEvenOddRatioRationalMixedPrecPseudoFermionAction(FermionOperator<Impl> &_NumOp,
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FermionOperator<Impl> &_DenOp,
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FermionOperator<ImplF> &_NumOpF,
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FermionOperator<ImplF> &_DenOpF,
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const Params & p, Integer ReliableUpdateFreq
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) :
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GeneralEvenOddRatioRationalMixedPrecPseudoFermionAction<Impl,ImplF>(_NumOp, _DenOp,_NumOpF, _DenOpF, transcribe(p),ReliableUpdateFreq){}
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virtual std::string action_name(){return "OneFlavourEvenOddRatioRationalPseudoFermionAction";}
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};
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NAMESPACE_END(Grid);
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#endif
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