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stochastic QED field module in Hadrons
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@ -32,6 +32,7 @@ See the full license in the file "LICENSE" in the top level distribution directo
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#include <Grid/Hadrons/Modules/MContraction/Meson.hpp>
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#include <Grid/Hadrons/Modules/MGauge/Load.hpp>
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#include <Grid/Hadrons/Modules/MGauge/Random.hpp>
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#include <Grid/Hadrons/Modules/MGauge/StochEm.hpp>
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#include <Grid/Hadrons/Modules/MGauge/Unit.hpp>
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#include <Grid/Hadrons/Modules/MSolver/RBPrecCG.hpp>
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#include <Grid/Hadrons/Modules/MSource/Point.hpp>
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88
extras/Hadrons/Modules/MGauge/StochEm.cc
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88
extras/Hadrons/Modules/MGauge/StochEm.cc
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@ -0,0 +1,88 @@
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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
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Copyright (C) 2016
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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 <Grid/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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if (!env().hasRegisteredObject("_" + getName() + "_weight"))
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{
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env().registerLattice<EmComp>("_" + getName() + "_weight");
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}
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env().registerLattice<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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PhotonR photon(par().gauge, par().zmScheme);
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EmField &a = *env().createLattice<EmField>(getName());
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EmComp *w;
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if (!env().hasCreatedObject("_" + getName() + "_weight"))
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{
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LOG(Message) << "Caching stochatic 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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w = env().createLattice<EmComp>("_" + getName() + "_weight");
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photon.StochasticWeight(*w);
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}
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else
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{
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w = env().getObject<EmComp>("_" + getName() + "_weight");
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}
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LOG(Message) << "Generating stochatic EM potential..." << std::endl;
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photon.StochasticField(a, *env().get4dRng(), *w);
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}
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96
extras/Hadrons/Modules/MGauge/StochEm.hpp
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96
extras/Hadrons/Modules/MGauge/StochEm.hpp
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@ -0,0 +1,96 @@
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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.hpp
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Copyright (C) 2015
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Copyright (C) 2016
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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 Hadrons_StochEm_hpp_
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#define Hadrons_StochEm_hpp_
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#include <Grid/Hadrons/Global.hpp>
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#include <Grid/Hadrons/Module.hpp>
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#include <Grid/Hadrons/ModuleFactory.hpp>
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BEGIN_HADRONS_NAMESPACE
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/******************************************************************************
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* StochEm *
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******************************************************************************/
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BEGIN_MODULE_NAMESPACE(MGauge)
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template <class S>
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class QedGimpl
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{
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public:
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typedef S Simd;
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template <typename vtype>
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using iImplGaugeLink = iScalar<iScalar<iScalar<vtype>>>;
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template <typename vtype>
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using iImplGaugeField = iVector<iScalar<iScalar<vtype>>, Nd>;
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typedef iImplGaugeLink<Simd> SiteGaugeLink;
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typedef iImplGaugeField<Simd> SiteGaugeField;
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typedef Lattice<SiteGaugeLink> GaugeLinkField;
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typedef Lattice<SiteGaugeField> GaugeField;
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};
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typedef QedGimpl<vComplex> QedGimplR;
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typedef Photon<QedGimplR> PhotonR;
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class StochEmPar: Serializable
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{
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public:
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GRID_SERIALIZABLE_CLASS_MEMBERS(StochEmPar,
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PhotonR::Gauge, gauge,
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PhotonR::ZmScheme, zmScheme);
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};
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class TStochEm: public Module<StochEmPar>
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{
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public:
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typedef PhotonR::GaugeField EmField;
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typedef PhotonR::GaugeLinkField EmComp;
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public:
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// constructor
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TStochEm(const std::string name);
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// destructor
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virtual ~TStochEm(void) = default;
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// dependency relation
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virtual std::vector<std::string> getInput(void);
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virtual std::vector<std::string> getOutput(void);
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// setup
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virtual void setup(void);
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// execution
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virtual void execute(void);
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};
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MODULE_REGISTER_NS(StochEm, TStochEm, MGauge);
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END_MODULE_NAMESPACE
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END_HADRONS_NAMESPACE
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#endif // Hadrons_StochEm_hpp_
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@ -1,6 +1,7 @@
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modules_cc =\
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Modules/MGauge/Load.cc \
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Modules/MGauge/Random.cc \
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Modules/MGauge/StochEm.cc \
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Modules/MGauge/Unit.cc
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modules_hpp =\
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@ -10,6 +11,7 @@ modules_hpp =\
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Modules/MContraction/Meson.hpp \
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Modules/MGauge/Load.hpp \
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Modules/MGauge/Random.hpp \
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Modules/MGauge/StochEm.hpp \
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Modules/MGauge/Unit.hpp \
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Modules/MSolver/RBPrecCG.hpp \
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Modules/MSource/Point.hpp \
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