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98 lines
3.3 KiB
C++
98 lines
3.3 KiB
C++
/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: extras/Hadrons/Modules/MScalar/FreeProp.cc
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Copyright (C) 2015-2018
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Author: Antonin Portelli <antonin.portelli@me.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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#include <Grid/Hadrons/Modules/MScalar/FreeProp.hpp>
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#include <Grid/Hadrons/Modules/MScalar/Scalar.hpp>
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using namespace Grid;
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using namespace Hadrons;
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using namespace MScalar;
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/******************************************************************************
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* TFreeProp implementation *
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******************************************************************************/
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// constructor /////////////////////////////////////////////////////////////////
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TFreeProp::TFreeProp(const std::string name)
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: Module<FreePropPar>(name)
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{}
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// dependencies/products ///////////////////////////////////////////////////////
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std::vector<std::string> TFreeProp::getInput(void)
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{
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std::vector<std::string> in = {par().source};
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return in;
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}
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std::vector<std::string> TFreeProp::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 TFreeProp::setup(void)
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{
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freeMomPropName_ = FREEMOMPROP(par().mass);
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freePropDone_ = env().hasCreatedObject(freeMomPropName_);
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envCacheLat(ScalarField, freeMomPropName_);
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envCreateLat(ScalarField, getName());
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}
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// execution ///////////////////////////////////////////////////////////////////
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void TFreeProp::execute(void)
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{
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auto &freeMomProp = envGet(ScalarField, freeMomPropName_);
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auto &prop = envGet(ScalarField, getName());
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auto &source = envGet(ScalarField, par().source);
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if (!freePropDone_)
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{
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LOG(Message) << "Caching momentum space free scalar propagator"
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<< " (mass= " << par().mass << ")..." << std::endl;
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SIMPL::MomentumSpacePropagator(freeMomProp, par().mass);
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}
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LOG(Message) << "Computing free scalar propagator..." << std::endl;
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SIMPL::FreePropagator(source, prop, freeMomProp);
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if (!par().output.empty())
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{
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std::vector<TComplex> buf;
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std::vector<Complex> result;
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sliceSum(prop, buf, Tp);
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result.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[t] = TensorRemove(buf[t]);
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}
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saveResult(par().output, "freeprop", result);
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}
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}
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