mirror of
https://github.com/paboyle/Grid.git
synced 2024-11-14 17:55:38 +00:00
87 lines
2.6 KiB
C++
87 lines
2.6 KiB
C++
/*************************************************************************************
|
|
|
|
Grid physics library, www.github.com/paboyle/Grid
|
|
|
|
Source file: ./lib/qcd/action/ActionBase.h
|
|
|
|
Copyright (C) 2015
|
|
|
|
Author: Peter Boyle <paboyle@ph.ed.ac.uk>
|
|
Author: neo <cossu@post.kek.jp>
|
|
|
|
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 QCD_ACTION_BASE
|
|
#define QCD_ACTION_BASE
|
|
namespace Grid {
|
|
namespace QCD{
|
|
|
|
template<class GaugeField>
|
|
class Action {
|
|
|
|
public:
|
|
// Boundary conditions? // Heatbath?
|
|
virtual void refresh(const GaugeField &U, GridParallelRNG& pRNG) = 0;// refresh pseudofermions
|
|
virtual RealD S (const GaugeField &U) = 0; // evaluate the action
|
|
virtual void deriv(const GaugeField &U,GaugeField & dSdU ) = 0; // evaluate the action derivative
|
|
virtual ~Action() {};
|
|
};
|
|
|
|
// Could derive PseudoFermion action with a PF field, FermionField, and a Grid; implement refresh
|
|
/*
|
|
template<class GaugeField, class FermionField>
|
|
class PseudoFermionAction : public Action<GaugeField> {
|
|
public:
|
|
FermionField Phi;
|
|
GridParallelRNG &pRNG;
|
|
GridBase &Grid;
|
|
|
|
PseudoFermionAction(GridBase &_Grid,GridParallelRNG &_pRNG) : Grid(_Grid), Phi(&_Grid), pRNG(_pRNG) {
|
|
};
|
|
|
|
virtual void refresh(const GaugeField &gauge) {
|
|
gaussian(Phi,pRNG);
|
|
};
|
|
|
|
};
|
|
*/
|
|
|
|
template<class GaugeField> struct ActionLevel{
|
|
public:
|
|
|
|
typedef Action<GaugeField>* ActPtr; // now force the same colours as the rest of the code
|
|
|
|
int multiplier;
|
|
|
|
std::vector<ActPtr> actions;
|
|
|
|
ActionLevel(int mul = 1) : multiplier(mul) {
|
|
assert (mul > 0);
|
|
};
|
|
|
|
void push_back(ActPtr ptr){
|
|
actions.push_back(ptr);
|
|
}
|
|
};
|
|
|
|
template<class GaugeField> using ActionSet = std::vector<ActionLevel< GaugeField > >;
|
|
|
|
|
|
}}
|
|
#endif
|