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144 lines
4.6 KiB
C++
144 lines
4.6 KiB
C++
/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: extras/Hadrons/Modules/MContraction/DiscLoop.hpp
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Copyright (C) 2015-2018
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Author: Antonin Portelli <antonin.portelli@me.com>
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Author: Lanny91 <andrew.lawson@gmail.com>
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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_MContraction_DiscLoop_hpp_
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#define Hadrons_MContraction_DiscLoop_hpp_
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#include <Hadrons/Global.hpp>
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#include <Hadrons/Module.hpp>
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#include <Hadrons/ModuleFactory.hpp>
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BEGIN_HADRONS_NAMESPACE
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/******************************************************************************
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* DiscLoop *
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******************************************************************************/
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BEGIN_MODULE_NAMESPACE(MContraction)
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class DiscLoopPar: Serializable
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{
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public:
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GRID_SERIALIZABLE_CLASS_MEMBERS(DiscLoopPar,
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std::string, q_loop,
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Gamma::Algebra, gamma,
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std::string, output);
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};
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template <typename FImpl>
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class TDiscLoop: public Module<DiscLoopPar>
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{
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FERM_TYPE_ALIASES(FImpl,);
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class Result: Serializable
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{
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public:
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GRID_SERIALIZABLE_CLASS_MEMBERS(Result,
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Gamma::Algebra, gamma,
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std::vector<Complex>, corr);
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};
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public:
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// constructor
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TDiscLoop(const std::string name);
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// destructor
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virtual ~TDiscLoop(void) {};
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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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protected:
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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_TMP(DiscLoop, TDiscLoop<FIMPL>, MContraction);
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/******************************************************************************
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* TDiscLoop implementation *
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******************************************************************************/
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// constructor /////////////////////////////////////////////////////////////////
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template <typename FImpl>
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TDiscLoop<FImpl>::TDiscLoop(const std::string name)
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: Module<DiscLoopPar>(name)
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{}
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// dependencies/products ///////////////////////////////////////////////////////
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template <typename FImpl>
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std::vector<std::string> TDiscLoop<FImpl>::getInput(void)
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{
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std::vector<std::string> in = {par().q_loop};
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return in;
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}
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template <typename FImpl>
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std::vector<std::string> TDiscLoop<FImpl>::getOutput(void)
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{
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std::vector<std::string> out = {};
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return out;
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}
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// setup ///////////////////////////////////////////////////////////////////////
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template <typename FImpl>
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void TDiscLoop<FImpl>::setup(void)
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{
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envTmpLat(LatticeComplex, "c");
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}
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// execution ///////////////////////////////////////////////////////////////////
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template <typename FImpl>
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void TDiscLoop<FImpl>::execute(void)
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{
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LOG(Message) << "Computing disconnected loop contraction '" << getName()
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<< "' using '" << par().q_loop << "' with " << par().gamma
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<< " insertion." << std::endl;
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auto &q_loop = envGet(PropagatorField, par().q_loop);
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Gamma gamma(par().gamma);
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std::vector<TComplex> buf;
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Result result;
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envGetTmp(LatticeComplex, c);
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c = trace(gamma*q_loop);
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sliceSum(c, buf, Tp);
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result.gamma = par().gamma;
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result.corr.resize(buf.size());
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for (unsigned int t = 0; t < buf.size(); ++t)
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{
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result.corr[t] = TensorRemove(buf[t]);
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}
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saveResult(par().output, "disc", result);
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}
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END_MODULE_NAMESPACE
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END_HADRONS_NAMESPACE
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#endif // Hadrons_MContraction_DiscLoop_hpp_
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