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Grid/Hadrons/Modules/MDistil/DistilVectors.hpp

292 lines
11 KiB
C++

/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: Hadrons/Modules/MDistil/DistilVectors.hpp
Copyright (C) 2019
Author: Felix Erben <ferben@ed.ac.uk>
Author: Michael Marshall <Michael.Marshall@ed.ac.uk>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
See the full license in the file "LICENSE" in the top level distribution directory
*************************************************************************************/
/* END LEGAL */
#ifndef Hadrons_MDistil_DistilVectors_hpp_
#define Hadrons_MDistil_DistilVectors_hpp_
#include <Hadrons/Modules/MDistil/DistilCommon.hpp>
BEGIN_HADRONS_NAMESPACE
BEGIN_MODULE_NAMESPACE(MDistil)
/******************************************************************************
* DistilVectors *
* (Create rho and/or phi vectors) *
******************************************************************************/
class DistilVectorsPar: Serializable
{
public:
GRID_SERIALIZABLE_CLASS_MEMBERS(DistilVectorsPar,
std::string, noise,
std::string, perambulator,
std::string, lapevec,
std::string, rho,
std::string, phi,
MDistil::DistilParameters, DistilPar);
};
template <typename FImpl>
class TDistilVectors: public Module<DistilVectorsPar>
{
public:
FERM_TYPE_ALIASES(FImpl,);
// constructor
TDistilVectors(const std::string name);
// destructor
virtual ~TDistilVectors(void);
// dependency relation
virtual std::vector<std::string> getInput(void);
virtual std::vector<std::string> getOutput(void);
// setup
virtual void setup(void);
// execution
virtual void execute(void);
protected:
// These variables are created in setup() and freed in Cleanup()
GridCartesian * grid3d; // Owned by me, so I must delete it
GridCartesian * grid4d; // Owned by environment (so I won't delete it)
virtual void Cleanup(void);
public:
// These variables contain parameters
std::string PerambulatorName;
std::string NoiseVectorName;
std::string LapEvecName;
bool bMakeRho;
bool bMakePhi;
std::string RhoName;
std::string PhiName;
};
MODULE_REGISTER_TMP(DistilVectors, TDistilVectors<FIMPL>, MDistil);
/******************************************************************************
* TDistilVectors implementation *
******************************************************************************/
// constructor /////////////////////////////////////////////////////////////////
template <typename FImpl>
TDistilVectors<FImpl>::TDistilVectors(const std::string name)
: grid3d{nullptr}, grid4d{nullptr}, Module<DistilVectorsPar>(name)
{}
// destructor
template <typename FImpl>
TDistilVectors<FImpl>::~TDistilVectors(void)
{
Cleanup();
};
// dependencies/products ///////////////////////////////////////////////////////
template <typename FImpl>
std::vector<std::string> TDistilVectors<FImpl>::getInput(void)
{
PerambulatorName = par().perambulator;
if (PerambulatorName.empty())
{
PerambulatorName = getName();
PerambulatorName.append("_peramb");
}
NoiseVectorName = par().noise;
if (NoiseVectorName.empty())
{
NoiseVectorName = PerambulatorName;
NoiseVectorName.append("_noise");
}
LapEvecName = par().lapevec;
if (LapEvecName.empty())
{
LapEvecName = PerambulatorName;
LapEvecName.append("_lapevec");
}
return { PerambulatorName, NoiseVectorName, LapEvecName };
}
template <typename FImpl>
std::vector<std::string> TDistilVectors<FImpl>::getOutput(void)
{
RhoName = par().rho;
PhiName = par().phi;
bMakeRho = ( RhoName.size() > 0 );
bMakePhi = ( PhiName.size() > 0 );
if (!bMakeRho && !bMakePhi)
{
RhoName = getName();
PhiName = RhoName;
RhoName.append("_rho");
PhiName.append("_phi");
bMakeRho = true;
bMakePhi = true;
}
std::vector<std::string> out;
if (bMakeRho)
out.push_back(RhoName);
if (bMakePhi)
out.push_back(PhiName);
return out;
}
// setup ///////////////////////////////////////////////////////////////////////
template <typename FImpl>
void TDistilVectors<FImpl>::setup(void)
{
Cleanup();
auto &noise = envGet(NoiseTensor, NoiseVectorName);
auto &perambulator = envGet(PerambTensor, PerambulatorName);
// We expect the perambulator to have been created with these indices
assert( perambulator.ValidateIndexNames() && "Perambulator index names bad" );
const int Nt{env().getDim(Tdir)};
const int nvec{par().DistilPar.nvec};
const int nnoise{par().DistilPar.nnoise};
const int TI{par().DistilPar.TI};
const int LI{par().DistilPar.LI};
const int SI{par().DistilPar.SI};
const bool full_tdil{ TI == Nt };
const int Nt_inv{ full_tdil ? 1 : TI };
if (bMakeRho)
envCreate(std::vector<FermionField>, RhoName, 1, nnoise*LI*SI*Nt_inv, envGetGrid(FermionField));
if (bMakePhi)
envCreate(std::vector<FermionField>, PhiName, 1, nnoise*LI*SI*Nt_inv, envGetGrid(FermionField));
grid4d = env().getGrid();
Coordinate latt_size = GridDefaultLatt();
Coordinate mpi_layout = GridDefaultMpi();
Coordinate simd_layout_3 = GridDefaultSimd(Nd-1, vComplex::Nsimd());
latt_size[Nd-1] = 1;
simd_layout_3.push_back( 1 );
mpi_layout[Nd-1] = 1;
grid3d = MakeLowerDimGrid(grid4d);
envTmp(LatticeSpinColourVector, "source4d",1,LatticeSpinColourVector(grid4d));
envTmp(LatticeSpinColourVector, "source3d",1,LatticeSpinColourVector(grid3d));
envTmp(LatticeColourVector, "source3d_nospin",1,LatticeColourVector(grid3d));
envTmp(LatticeSpinColourVector, "sink3d",1,LatticeSpinColourVector(grid3d));
envTmp(LatticeColourVector, "evec3d",1,LatticeColourVector(grid3d));
}
// clean up any temporaries created by setup (that aren't stored in the environment)
template <typename FImpl>
void TDistilVectors<FImpl>::Cleanup(void)
{
if ( grid3d != nullptr)
{
delete grid3d;
grid3d = nullptr;
}
grid4d = nullptr;
}
// execution ///////////////////////////////////////////////////////////////////
template <typename FImpl>
void TDistilVectors<FImpl>::execute(void)
{
auto &noise = envGet(NoiseTensor, NoiseVectorName);
auto &perambulator = envGet(PerambTensor, PerambulatorName);
auto &epack = envGet(Grid::Hadrons::EigenPack<LatticeColourVector>, LapEvecName);
envGetTmp(LatticeSpinColourVector, source4d);
envGetTmp(LatticeSpinColourVector, source3d);
envGetTmp(LatticeColourVector, source3d_nospin);
envGetTmp(LatticeSpinColourVector, sink3d);
envGetTmp(LatticeColourVector, evec3d);
const int Ntlocal{ grid4d->LocalDimensions()[3] };
const int Ntfirst{ grid4d->LocalStarts()[3] };
const int Nt{env().getDim(Tdir)};
const int nvec{par().DistilPar.nvec};
const int nnoise{par().DistilPar.nnoise};
const int tsrc{par().DistilPar.tsrc};
const int TI{par().DistilPar.TI};
const int LI{par().DistilPar.LI};
const int SI{par().DistilPar.SI};
const bool full_tdil{ TI == Nt };
const int Nt_inv{ full_tdil ? 1 : TI };
int vecindex;
int t_inv;
if (bMakeRho)
{
auto &rho = envGet(std::vector<FermionField>, RhoName);
for (int inoise = 0; inoise < nnoise; inoise++) {
for (int dk = 0; dk < LI; dk++) {
for (int dt = 0; dt < Nt_inv; dt++) {
for (int ds = 0; ds < SI; ds++) {
vecindex = inoise + nnoise * dk + nnoise * LI * ds + nnoise *LI * SI*dt;
rho[vecindex] = 0;
source3d_nospin = 0;
for (int it = dt; it < Nt; it += TI){
if (full_tdil) t_inv = tsrc; else t_inv = it;
if (t_inv >= Ntfirst && t_inv < Ntfirst + Ntlocal) {
for (int ik = dk; ik < nvec; ik += LI){
for (int is = ds; is < Ns; is += SI){
ExtractSliceLocal(evec3d,epack.evec[ik],0,t_inv-Ntfirst,Tdir);
source3d_nospin = evec3d * noise.tensor(inoise, t_inv, ik, is);
source3d=0;
pokeSpin(source3d,source3d_nospin,is);
source4d=0;
InsertSliceLocal(source3d,source4d,0,t_inv-Ntfirst,Tdir);
rho[vecindex] += source4d;
}
}
}
}
}
}
}
}
}
if (bMakePhi) {
auto &phi = envGet(std::vector<FermionField>, PhiName);
for (int inoise = 0; inoise < nnoise; inoise++) {
for (int dk = 0; dk < LI; dk++) {
for (int dt = 0; dt < Nt_inv; dt++) {
for (int ds = 0; ds < SI; ds++) {
vecindex = inoise + nnoise * dk + nnoise * LI * ds + nnoise *LI * SI*dt;
phi[vecindex] = 0;
for (int t = Ntfirst; t < Ntfirst + Ntlocal; t++) {
sink3d=0;
for (int ivec = 0; ivec < nvec; ivec++) {
ExtractSliceLocal(evec3d,epack.evec[ivec],0,t-Ntfirst,Tdir);
sink3d += evec3d * perambulator.tensor(t, ivec, dk, inoise,dt,ds);
}
InsertSliceLocal(sink3d,phi[vecindex],0,t-Ntfirst,Tdir);
}
}
}
}
}
}
}
END_MODULE_NAMESPACE
END_HADRONS_NAMESPACE
#endif // Hadrons_MDistil_DistilVectors_hpp_