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88 lines
2.6 KiB
C++
88 lines
2.6 KiB
C++
/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: ./lib/qcd/action/ActionBase.h
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Copyright (C) 2015
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Author: Peter Boyle <paboyle@ph.ed.ac.uk>
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Author: neo <cossu@post.kek.jp>
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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_ACTION_BASE
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#define QCD_ACTION_BASE
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namespace Grid {
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namespace QCD{
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template<class GaugeField>
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class Action {
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public:
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bool is_smeared = false;
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// Boundary conditions? // Heatbath?
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virtual void refresh(const GaugeField &U, GridParallelRNG& pRNG) = 0;// refresh pseudofermions
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virtual RealD S (const GaugeField &U) = 0; // evaluate the action
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virtual void deriv(const GaugeField &U,GaugeField & dSdU ) = 0; // evaluate the action derivative
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virtual ~Action() {};
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};
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// Could derive PseudoFermion action with a PF field, FermionField, and a Grid; implement refresh
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/*
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template<class GaugeField, class FermionField>
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class PseudoFermionAction : public Action<GaugeField> {
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public:
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FermionField Phi;
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GridParallelRNG &pRNG;
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GridBase &Grid;
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PseudoFermionAction(GridBase &_Grid,GridParallelRNG &_pRNG) : Grid(_Grid), Phi(&_Grid), pRNG(_pRNG) {
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};
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virtual void refresh(const GaugeField &gauge) {
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gaussian(Phi,pRNG);
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};
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};
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*/
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template<class GaugeField> struct ActionLevel{
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public:
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typedef Action<GaugeField>* ActPtr; // now force the same colours as the rest of the code
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int multiplier;
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std::vector<ActPtr> actions;
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ActionLevel(int mul = 1) : multiplier(mul) {
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assert (mul > 0);
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};
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void push_back(ActPtr ptr){
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actions.push_back(ptr);
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}
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};
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template<class GaugeField> using ActionSet = std::vector<ActionLevel< GaugeField > >;
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}}
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#endif
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