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Grid/Grid/qcd/observables/plaquette.h
2023-06-15 10:43:04 -04:00

78 lines
2.6 KiB
C++

/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: ./lib/qcd/modules/plaquette.h
Copyright (C) 2017
Author: Guido Cossu <guido.cossu@ed.ac.uk>
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 */
#pragma once
NAMESPACE_BEGIN(Grid);
// this is only defined for a gauge theory
template <class Impl>
class PlaquetteLogger : public HmcObservable<typename Impl::Field> {
public:
// here forces the Impl to be of gauge fields
// if not the compiler will complain
INHERIT_GIMPL_TYPES(Impl);
// necessary for HmcObservable compatibility
typedef typename Impl::Field Field;
virtual void TrajectoryComplete(int traj,
ConfigurationBase<Field> &SmartConfig,
GridSerialRNG &sRNG,
GridParallelRNG &pRNG)
{
std::cout << GridLogMessage << "+++++++++++++++++++"<<std::endl;
std::cout << GridLogMessage << "Unsmeared plaquette"<<std::endl;
TrajectoryComplete(traj,SmartConfig.get_U(false),sRNG,pRNG); // Unsmeared observable
std::cout << GridLogMessage << "Smeared plaquette"<<std::endl;
TrajectoryComplete(traj,SmartConfig.get_U(true),sRNG,pRNG); // Unsmeared observable
std::cout << GridLogMessage << "+++++++++++++++++++"<<std::endl;
};
void TrajectoryComplete(int traj,
Field &U,
GridSerialRNG &sRNG,
GridParallelRNG &pRNG) {
RealD plaq = WilsonLoops<Impl>::avgPlaquette(U);
int def_prec = std::cout.precision();
std::cout << GridLogMessage
<< std::setprecision(std::numeric_limits<Real>::digits10 + 1)
<< "Plaquette: [ " << traj << " ] "<< plaq << std::endl;
std::cout.precision(def_prec);
}
};
NAMESPACE_END(Grid);