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193 lines
7.6 KiB
C++
193 lines
7.6 KiB
C++
/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: Hadrons/Modules/MDistil/PerambFromSolve.hpp
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Copyright (C) 2019
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Author: Felix Erben <ferben@ed.ac.uk>
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Author: Michael Marshall <Michael.Marshall@ed.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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#ifndef Hadrons_MDistil_PerambFromSolve_hpp_
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#define Hadrons_MDistil_PerambFromSolve_hpp_
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#include <Hadrons/Modules/MDistil/DistilCommon.hpp>
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BEGIN_HADRONS_NAMESPACE
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BEGIN_MODULE_NAMESPACE(MDistil)
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/******************************************************************************
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* PerambFromSolve
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This module computes a perambulator from an already completed solve.
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Optionally, the number of eigenvectors used in the perambulator and the
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parameter LI can be chosen to be lower than the ones in the solve, allowing
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for a study of the signal with different values of nvec.
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******************************************************************************/
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class PerambFromSolvePar: Serializable
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{
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public:
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GRID_SERIALIZABLE_CLASS_MEMBERS(PerambFromSolvePar,
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std::string, eigenPack,
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std::string, PerambFileName,
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std::string, solve,
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int, nvec,
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std::string, nvec_reduced,
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std::string, LI_reduced,
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DistilParameters, Distil);
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};
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template <typename FImpl>
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class TPerambFromSolve: public Module<PerambFromSolvePar>
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{
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public:
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FERM_TYPE_ALIASES(FImpl,);
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// constructor
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TPerambFromSolve(const std::string name);
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// destructor
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virtual ~TPerambFromSolve(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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// 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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protected:
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GridCartesian * grid3d; // Owned by me, so I must delete it
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GridCartesian * grid4d;
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protected:
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virtual void Cleanup(void);
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};
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MODULE_REGISTER_TMP(PerambFromSolve, TPerambFromSolve<FIMPL>, MDistil);
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/******************************************************************************
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* TPerambFromSolve implementation *
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******************************************************************************/
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// constructor /////////////////////////////////////////////////////////////////
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template <typename FImpl>
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TPerambFromSolve<FImpl>::TPerambFromSolve(const std::string name)
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:grid3d{nullptr}, grid4d{nullptr}, Module<PerambFromSolvePar>(name)
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{}
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//destructor
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template <typename FImpl>
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TPerambFromSolve<FImpl>::~TPerambFromSolve(void)
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{
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Cleanup();
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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> TPerambFromSolve<FImpl>::getInput(void)
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{
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return std::vector<std::string>{ par().solve, par().eigenPack };
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}
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template <typename FImpl>
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std::vector<std::string> TPerambFromSolve<FImpl>::getOutput(void)
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{
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return std::vector<std::string>{ getName() };
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}
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// setup ///////////////////////////////////////////////////////////////////////
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template <typename FImpl>
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void TPerambFromSolve<FImpl>::setup(void)
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{
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Cleanup();
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DISTIL_PARAMETERS_DEFINE( true );
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const int nvec_reduced{ Hadrons::MDistil::DistilParameters::ParameterDefault( par().nvec_reduced, nvec, true) };
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const int LI_reduced{ Hadrons::MDistil::DistilParameters::ParameterDefault( par().LI_reduced, LI, true) };
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grid4d = env().getGrid();
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grid3d = MakeLowerDimGrid(grid4d);
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envCreate(PerambTensor, getName(), 1, Nt,nvec_reduced,LI_reduced,nnoise,Nt_inv,SI);
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envCreate(NoiseTensor, getName() + "_noise", 1, nnoise, Nt, nvec, Ns );
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envTmp(LatticeColourVector, "result_3d",1,LatticeColourVector(grid3d));
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envTmp(LatticeColourVector, "evec3d",1,LatticeColourVector(grid3d));
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envTmpLat(LatticeColourVector, "result_nospin");
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}
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template <typename FImpl>
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void TPerambFromSolve<FImpl>::Cleanup(void)
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{
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if (grid3d != nullptr)
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{
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delete grid3d;
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grid3d = nullptr;
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}
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grid4d = nullptr;
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}
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// execution ///////////////////////////////////////////////////////////////////
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template <typename FImpl>
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void TPerambFromSolve<FImpl>::execute(void)
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{
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GridCartesian * grid4d = env().getGrid();
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const int Ntlocal{grid4d->LocalDimensions()[3]};
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const int Ntfirst{grid4d->LocalStarts()[3]};
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DISTIL_PARAMETERS_DEFINE( false );
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const int nvec_reduced{ Hadrons::MDistil::DistilParameters::ParameterDefault( par().nvec_reduced, nvec, false) };
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const int LI_reduced{ Hadrons::MDistil::DistilParameters::ParameterDefault( par().LI_reduced, LI, false) };
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auto &perambulator = envGet(PerambTensor, getName());
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auto &solve = envGet(std::vector<FermionField>, par().solve);
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auto &epack = envGet(Grid::Hadrons::EigenPack<LatticeColourVector>, par().eigenPack);
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envGetTmp(LatticeColourVector, result_nospin);
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envGetTmp(LatticeColourVector, result_3d);
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envGetTmp(LatticeColourVector, evec3d);
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for (int inoise = 0; inoise < nnoise; inoise++) {
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for (int dk = 0; dk < LI_reduced; dk++) {
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for (int dt = 0; dt < Nt_inv; dt++) {
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for (int ds = 0; ds < SI; ds++) {
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for (int is = 0; is < Ns; is++) {
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result_nospin = peekSpin(solve[inoise+nnoise*(dk+LI*(dt+Nt_inv*ds))],is);
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for (int t = Ntfirst; t < Ntfirst + Ntlocal; t++) {
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ExtractSliceLocal(result_3d,result_nospin,0,t-Ntfirst,Tdir);
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for (int ivec = 0; ivec < nvec_reduced; ivec++) {
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ExtractSliceLocal(evec3d,epack.evec[ivec],0,t-Ntfirst,Tdir);
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pokeSpin(perambulator.tensor(t, ivec, dk, inoise,dt,ds),static_cast<Complex>(innerProduct(evec3d, result_3d)),is);
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LOG(Message) << "perambulator(t, ivec, dk, inoise,dt,ds)(is) = (" << t << "," << ivec << "," << dk << "," << inoise << "," << dt << "," << ds << ")(" << is << ") = " << perambulator.tensor(t, ivec, dk, inoise,dt,ds)()(is)() << std::endl;
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}
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}
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}
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}
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}
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}
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}
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if(grid4d->IsBoss())
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{
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std::string sPerambName{par().PerambFileName};
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if (sPerambName.empty())
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sPerambName = getName();
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sPerambName.append( "." );
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sPerambName.append( std::to_string(vm().getTrajectory()));
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perambulator.write(sPerambName.c_str());
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}
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}
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END_MODULE_NAMESPACE
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END_HADRONS_NAMESPACE
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#endif // Hadrons_MDistil_PerambFromSolve_hpp_
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