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Hadrons: moving Hadrons to root directory, build system improvements
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Hadrons/Modules/MGauge/StochEm.cc
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85
Hadrons/Modules/MGauge/StochEm.cc
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/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: extras/Hadrons/Modules/MGauge/StochEm.cc
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Copyright (C) 2015-2018
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Author: Antonin Portelli <antonin.portelli@me.com>
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Author: James Harrison <jch1g10@soton.ac.uk>
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Author: Vera Guelpers <vmg1n14@soton.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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#include <Hadrons/Modules/MGauge/StochEm.hpp>
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using namespace Grid;
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using namespace Hadrons;
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using namespace MGauge;
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/******************************************************************************
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* TStochEm implementation *
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******************************************************************************/
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// constructor /////////////////////////////////////////////////////////////////
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TStochEm::TStochEm(const std::string name)
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: Module<StochEmPar>(name)
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{}
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// dependencies/products ///////////////////////////////////////////////////////
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std::vector<std::string> TStochEm::getInput(void)
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{
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std::vector<std::string> in;
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return in;
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}
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std::vector<std::string> TStochEm::getOutput(void)
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{
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std::vector<std::string> out = {getName()};
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return out;
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}
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// setup ///////////////////////////////////////////////////////////////////////
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void TStochEm::setup(void)
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{
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weightDone_ = env().hasCreatedObject("_" + getName() + "_weight");
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envCacheLat(EmComp, "_" + getName() + "_weight");
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envCreateLat(EmField, getName());
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}
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// execution ///////////////////////////////////////////////////////////////////
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void TStochEm::execute(void)
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{
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LOG(Message) << "Generating stochastic EM potential..." << std::endl;
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std::vector<Real> improvements = strToVec<Real>(par().improvement);
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PhotonR photon(par().gauge, par().zmScheme, improvements, par().G0_qedInf);
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auto &a = envGet(EmField, getName());
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auto &w = envGet(EmComp, "_" + getName() + "_weight");
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if (!weightDone_)
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{
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LOG(Message) << "Caching stochastic EM potential weight (gauge: "
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<< par().gauge << ", zero-mode scheme: "
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<< par().zmScheme << ")..." << std::endl;
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photon.StochasticWeight(w);
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}
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photon.StochasticField(a, rng4d(), w);
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}
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