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238 lines
9.5 KiB
C++
238 lines
9.5 KiB
C++
/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: Hadrons/Modules/MDistil/DistilVectors.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_DistilVectors_hpp_
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#define Hadrons_MDistil_DistilVectors_hpp_
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#include <Hadrons/Modules/MDistil/Distil.hpp>
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BEGIN_HADRONS_NAMESPACE
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BEGIN_MODULE_NAMESPACE(MDistil)
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/******************************************************************************
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* DistilVectors *
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* (Create rho and/or phi vectors) *
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******************************************************************************/
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class DistilVectorsPar: Serializable
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{
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public:
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GRID_SERIALIZABLE_CLASS_MEMBERS(DistilVectorsPar,
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std::string, noise,
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std::string, perambulator,
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std::string, lapevec,
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std::string, rho,
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std::string, phi,
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std::string, DistilParams);
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};
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template <typename FImpl>
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class TDistilVectors: public Module<DistilVectorsPar>
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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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TDistilVectors(const std::string name);
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// destructor
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virtual ~TDistilVectors(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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std::unique_ptr<GridCartesian> grid3d; // Owned by me, so I must delete it
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public:
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// These variables contain parameters
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std::string RhoName;
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std::string PhiName;
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};
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MODULE_REGISTER_TMP(DistilVectors, TDistilVectors<FIMPL>, MDistil);
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/******************************************************************************
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* TDistilVectors implementation *
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******************************************************************************/
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// constructor /////////////////////////////////////////////////////////////////
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template <typename FImpl>
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TDistilVectors<FImpl>::TDistilVectors(const std::string name) : Module<DistilVectorsPar>(name) {}
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// dependencies/products ///////////////////////////////////////////////////////
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template <typename FImpl>
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std::vector<std::string> TDistilVectors<FImpl>::getInput(void)
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{
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return {par().noise,par().perambulator,par().lapevec,par().DistilParams};
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}
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template <typename FImpl>
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std::vector<std::string> TDistilVectors<FImpl>::getOutput(void)
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{
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RhoName = par().rho;
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PhiName = par().phi;
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if (RhoName.empty() && PhiName.empty())
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{
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RhoName = getName();
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PhiName = RhoName;
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RhoName.append("_rho");
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PhiName.append("_phi");
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}
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std::vector<std::string> out;
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if (!RhoName.empty())
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out.push_back(RhoName);
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if (!PhiName.empty())
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out.push_back(PhiName);
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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 TDistilVectors<FImpl>::setup(void)
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{
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// We expect the perambulator to have been created with these indices
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auto &perambulator = envGet(PerambTensor, par().perambulator);
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if (!perambulator.ValidateIndexNames())
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HADRONS_ERROR(Range,"Perambulator index names bad");
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const DistilParameters &dp{envGet(DistilParameters, par().DistilParams)};
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const int Nt{env().getDim(Tdir)};
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const bool full_tdil{ dp.TI == Nt };
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const int Nt_inv{ full_tdil ? 1 : dp.TI };
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if (!RhoName.empty())
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envCreate(std::vector<FermionField>, RhoName, 1, dp.nnoise*dp.LI*dp.SI*Nt_inv, envGetGrid(FermionField));
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if (!PhiName.empty())
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envCreate(std::vector<FermionField>, PhiName, 1, dp.nnoise*dp.LI*dp.SI*Nt_inv, envGetGrid(FermionField));
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Coordinate latt_size = GridDefaultLatt();
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Coordinate mpi_layout = GridDefaultMpi();
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Coordinate simd_layout_3 = GridDefaultSimd(Nd-1, vComplex::Nsimd());
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latt_size[Nd-1] = 1;
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simd_layout_3.push_back( 1 );
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mpi_layout[Nd-1] = 1;
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GridCartesian * const grid4d{env().getGrid()};
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grid3d.reset(MakeLowerDimGrid(grid4d));
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envTmp(LatticeSpinColourVector, "source4d",1,LatticeSpinColourVector(grid4d));
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envTmp(LatticeSpinColourVector, "source3d",1,LatticeSpinColourVector(grid3d.get()));
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envTmp(LatticeColourVector, "source3d_nospin",1,LatticeColourVector(grid3d.get()));
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envTmp(LatticeSpinColourVector, "sink3d",1,LatticeSpinColourVector(grid3d.get()));
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envTmp(LatticeColourVector, "evec3d",1,LatticeColourVector(grid3d.get()));
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}
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// execution ///////////////////////////////////////////////////////////////////
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template <typename FImpl>
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void TDistilVectors<FImpl>::execute(void)
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{
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auto &noise = envGet(NoiseTensor, par().noise);
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auto &perambulator = envGet(PerambTensor, par().perambulator);
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auto &epack = envGet(Grid::Hadrons::EigenPack<LatticeColourVector>, par().lapevec);
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const DistilParameters &DPar{envGet(DistilParameters, par().DistilParams)};
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envGetTmp(LatticeSpinColourVector, source4d);
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envGetTmp(LatticeSpinColourVector, source3d);
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envGetTmp(LatticeColourVector, source3d_nospin);
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envGetTmp(LatticeSpinColourVector, sink3d);
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envGetTmp(LatticeColourVector, evec3d);
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GridCartesian * const 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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const int Nt{env().getDim(Tdir)};
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const int nvec{DPar.nvec};
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const int nnoise{DPar.nnoise};
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const int tsrc{DPar.tsrc};
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const int TI{DPar.TI};
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const int LI{DPar.LI};
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const int SI{DPar.SI};
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const bool full_tdil{ TI == Nt };
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const int Nt_inv{ full_tdil ? 1 : TI };
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int vecindex;
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int t_inv;
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if (!RhoName.empty())
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{
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auto &rho = envGet(std::vector<FermionField>, RhoName);
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for (int inoise = 0; inoise < nnoise; inoise++) {
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for (int dk = 0; dk < LI; 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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vecindex = inoise + nnoise * dk + nnoise * LI * ds + nnoise *LI * SI*dt;
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rho[vecindex] = 0;
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source3d_nospin = 0;
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for (int it = dt; it < Nt; it += TI){
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if (full_tdil) t_inv = tsrc; else t_inv = it;
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if (t_inv >= Ntfirst && t_inv < Ntfirst + Ntlocal) {
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for (int ik = dk; ik < nvec; ik += LI){
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for (int is = ds; is < Ns; is += SI){
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ExtractSliceLocal(evec3d,epack.evec[ik],0,t_inv-Ntfirst,Tdir);
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source3d_nospin = evec3d * noise.tensor(inoise, t_inv, ik, is);
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source3d=0;
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pokeSpin(source3d,source3d_nospin,is);
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source4d=0;
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InsertSliceLocal(source3d,source4d,0,t_inv-Ntfirst,Tdir);
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rho[vecindex] += source4d;
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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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}
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}
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if (!PhiName.empty()) {
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auto &phi = envGet(std::vector<FermionField>, PhiName);
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for (int inoise = 0; inoise < nnoise; inoise++) {
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for (int dk = 0; dk < LI; 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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vecindex = inoise + nnoise * dk + nnoise * LI * ds + nnoise *LI * SI*dt;
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phi[vecindex] = 0;
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for (int t = Ntfirst; t < Ntfirst + Ntlocal; t++) {
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sink3d=0;
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for (int ivec = 0; ivec < nvec; ivec++) {
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ExtractSliceLocal(evec3d,epack.evec[ivec],0,t-Ntfirst,Tdir);
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sink3d += evec3d * perambulator.tensor(t, ivec, dk, inoise,dt,ds);
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}
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InsertSliceLocal(sink3d,phi[vecindex],0,t-Ntfirst,Tdir);
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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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END_MODULE_NAMESPACE
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END_HADRONS_NAMESPACE
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#endif // Hadrons_MDistil_DistilVectors_hpp_
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