portelli/Grid
1
0
Fork 0
mirror of https://github.com/paboyle/Grid.git synced 2024-11-10 07:55:35 +00:00
Code Releases Activity

Merged latest changes from develop, in preparation for release.

Browse Source
This commit is contained in:
Michael Marshall 2019-10-30 14:52:34 +00:00
parent eb8848a071
commit 2a926b3dc6
6 changed files with 8 additions and 598 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
Grid/algorithms/iterative/ImplicitlyRestartedLanczos.h
View File

@ -64,7 +64,7 @@ void basisRotate(std::vector<Field> &basis,Eigen::MatrixXd& Qt,int j0, int j1, i
thread_region
{
std::vector < vobj > B(Nm); // Thread private
std::vector < vobj , commAllocator<vobj> > B(Nm); // Thread private
thread_for_in_region(ss, grid->oSites(),{
for(int j=j0; j<j1; ++j) B[j]=0.;

22
Grid/qcd/smearing/StoutSmearing.h
View File

@ -40,7 +40,7 @@ template <class Gimpl>
class Smear_Stout : public Smear<Gimpl> {
private:
int OrthogDim = -1;
const std::vector<double> SmearRho{};
const std::vector<double> SmearRho;
// Smear<Gimpl>* ownership semantics:
// Smear<Gimpl>* passed in to constructor are owned by caller, so we don't delete them here
// Smear<Gimpl>* created within constructor need to be deleted as part of the destructor
@ -61,7 +61,6 @@ public:
/*! Stout smearing with base explicitly specified */
Smear_Stout(Smear<Gimpl>* base) : SmearBase{base} {
std::cout << GridLogDebug << "Stout smearing constructor : Smear_Stout(Smear<Gimpl>* base)" << std::endl
assert(Nc == 3 && "Stout smearing currently implemented only for Nc==3");
}
@ -73,32 +72,25 @@ public:
}
/*! Default constructor. rho is constant in all directions, optionally except for orthogonal dimension */
Smear_Stout(double rho, int orthogdim = -1)
//: OwnedBase{(orthogdim<0 || orthogdim>=Nd) ? new Smear_APE<Gimpl>(rho) : new Smear_APE<Gimpl>(rho3D(rho,orthogdim))},
Smear_Stout(double rho = 1.0, int orthogdim = -1)
: OrthogDim{orthogdim}, SmearRho{ rho3D(rho,orthogdim) }, OwnedBase{ new Smear_APE<Gimpl>(SmearRho) }, SmearBase{OwnedBase.get()} {
std::cout << GridLogDebug << "Stout smearing constructor : Smear_StoutSmear_Stout(double " << rho << ", int " << OrthogDim << " )\nrho3d=" << SmearRho << std::endl;
assert(Nc == 3 && "Stout smearing currently implemented only for Nc==3");
}
/*
Smear_Stout(double rho = 1.0) : SmearBase(new Smear_APE<Gimpl>(rho)) {
assert(Nc == 3 && "Stout smearing currently implemented only for Nc==3");
}*/
~Smear_Stout() {} // delete SmearBase...
void smear(GaugeField& u_smr, const GaugeField& U) const {
GaugeField C(U.Grid());
GaugeLinkField tmp(U.Grid()), iq_mu(U.Grid()), Umu(U.Grid());
std::cout << GridLogDebug << "Stout smearing started" << std::endl;
std::cout << GridLogDebug << "Stout smearing started\n";
// Smear the configurations
SmearBase->smear(C, U);
for (int mu = 0; mu < Nd; mu++) {
if( mu == OrthogDim )
tmp = 1.0;
tmp = 1.0; // Don't smear in the orthogonal direction
else {
tmp = peekLorentz(C, mu);
Umu = peekLorentz(U, mu);
@ -109,7 +101,7 @@ public:
}
pokeLorentz(u_smr, tmp * Umu, mu); // u_smr = exp(iQ_mu)*U_mu
}
std::cout << GridLogDebug << "Stout smearing completed" << std::endl;
std::cout << GridLogDebug << "Stout smearing completed\n";
};
void derivative(GaugeField& SigmaTerm, const GaugeField& iLambda,
@ -169,7 +161,7 @@ public:
c0max = 2.0 * pow(tmp, 1.5);
theta = acos(c0 / c0max) *
one_over_three; // divide by three here, now leave as it is
one_over_three; // divide by three here, now leave as it is
u = sqrt(tmp) * cos(theta);
w = sqrt(c1) * sin(theta);
}
@ -194,7 +186,7 @@ public:
e2iu = cos(2.0 * u) + timesI(sin(2.0 * u));
h0 = e2iu * (u2 - w2) +
emiu * ((8.0 * u2 * cosw) + (2.0 * u * (3.0 * u2 + w2) * ixi0));
emiu * ((8.0 * u2 * cosw) + (2.0 * u * (3.0 * u2 + w2) * ixi0));
h1 = e2iu * (2.0 * u) - emiu * ((2.0 * u * cosw) - (3.0 * u2 - w2) * ixi0);
h2 = e2iu - emiu * (cosw + (3.0 * u) * ixi0);

36
Hadrons/Modules/MDistil/BContraction.cc
View File

@ -1,36 +0,0 @@
/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: Hadrons/Modules/MDistil/BContraction.cc
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 */
#include <Hadrons/Modules/MDistil/BContraction.hpp>
using namespace Grid;
using namespace Hadrons;
using namespace MDistil;
template class Grid::Hadrons::MDistil::TBContraction<FIMPL>;

289
Hadrons/Modules/MDistil/BContraction.hpp
View File

@ -1,289 +0,0 @@
/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: Hadrons/Modules/MDistil/BContraction.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_BContraction_hpp_
#define Hadrons_MDistil_BContraction_hpp_
#include <Hadrons/Global.hpp>
#include <Hadrons/Module.hpp>
#include <Hadrons/ModuleFactory.hpp>
#include <Hadrons/Solver.hpp>
#include <Hadrons/EigenPack.hpp>
#include <Hadrons/A2AVectors.hpp>
#include <Hadrons/DilutedNoise.hpp>
// These are members of Distillation
#include <Hadrons/Distil.hpp>
BEGIN_HADRONS_NAMESPACE
/******************************************************************************
* BContraction *
******************************************************************************/
BEGIN_MODULE_NAMESPACE(MDistil)
// general baryon tensor set based on Eigen tensors and Grid-allocated memory
// Dimensions:
// 0 - ext - external field (momentum, EM field, ...)
// 1 - str - dirac structure
// 2 - t - timeslice
// 3 - s - free spin index
// 4 - i - left distillation mode index
// 5 - j - middle distillation mode index
// 6 - k - left distillation mode index
// template <typename T>
// using BaryonTensorSet = Eigen::TensorMap<Eigen::Tensor<T, 7, Eigen::RowMajor>>;
class BContractionPar: Serializable
{
public:
GRID_SERIALIZABLE_CLASS_MEMBERS(BContractionPar,
std::string, one,
std::string, two,
std::string, three,
std::string, output,
int, parity,
std::vector<std::string>, mom);
};
template <typename FImpl>
class TBContraction: public Module<BContractionPar>
{
public:
using W = WilsonImplR; // Debug so I can see type info for default FImpl
FERM_TYPE_ALIASES(FImpl,);
public:
// constructor
TBContraction(const std::string name);
// destructor
virtual ~TBContraction(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);
private:
bool hasPhase_{false};
std::string momphName_;
std::vector<Gamma::Algebra> gamma12_;
std::vector<Gamma::Algebra> gamma23_;
std::vector<std::vector<Real>> mom_;
protected:
GridCartesian * grid4d;
GridCartesian * grid3d;
};
/*class BFieldIO: Serializable{
public:
using BaryonTensorSet = Eigen::Tensor<Complex, 7>;
GRID_SERIALIZABLE_CLASS_MEMBERS(BFieldIO,
BaryonTensorSet, BField
);
};*/
MODULE_REGISTER_TMP(BContraction, TBContraction<FIMPL>, MDistil);
/******************************************************************************
* TBContraction implementation *
******************************************************************************/
// constructor /////////////////////////////////////////////////////////////////
template <typename FImpl>
TBContraction<FImpl>::TBContraction(const std::string name)
: Module<BContractionPar>(name)
{}
// dependencies/products ///////////////////////////////////////////////////////
template <typename FImpl>
std::vector<std::string> TBContraction<FImpl>::getInput(void)
{
std::vector<std::string> in = {par().one, par().two, par().three};
return in;
}
template <typename FImpl>
std::vector<std::string> TBContraction<FImpl>::getOutput(void)
{
std::vector<std::string> out = {};
return out;
}
// setup ///////////////////////////////////////////////////////////////////////
template <typename FImpl>
void TBContraction<FImpl>::setup(void)
{
}
// execution ///////////////////////////////////////////////////////////////////
template <typename FImpl>
void TBContraction<FImpl>::execute(void)
{
auto &one = envGet(std::vector<FermionField>, par().one);
auto &two = envGet(std::vector<FermionField>, par().two);
auto &three = envGet(std::vector<FermionField>, par().three);
int N_1 = one.size();
int N_2 = two.size();
int N_3 = three.size();
int parity = par().parity;
const std::string &output{par().output};
LOG(Message) << "Computing distillation baryon fields" << std::endl;
LOG(Message) << "One: '" << par().one << "' Two: '" << par().two << "' Three: '" << par().three << "'" << std::endl;
LOG(Message) << "Momenta:" << std::endl;
for (auto &p: mom_)
{
LOG(Message) << " " << p << std::endl;
}
grid4d = env().getGrid();
grid3d = MakeLowerDimGrid(grid4d);
int Nmom=1;
int Nt=64;
// std::vector<Complex> BField(Nmom*Nt*N_1*N_2*N_3);
int Bindex;
int Nc=3; //Num colours
FermionField ftmp1(grid3d);
FermionField ftmp2(grid3d);
FermionField ftmp3(grid3d);
LatticeView<typename FImpl::SiteSpinor> tmp1{ ftmp1 };
LatticeView<typename FImpl::SiteSpinor> tmp2{ ftmp2 };
LatticeView<typename FImpl::SiteSpinor> tmp3{ ftmp3 };
//std::complex<double> * tmp33 = reinterpret_cast<std::complex<double> *>(&(tmp3[0]()(0)(0)));
#ifdef THIS_IS_NAUGHTY_TODO_FIXME
// The reinterpret_cast gets rid of SIMD attributes
// Plus other badness - e.g. we perhaps shouldn't explicitly say SpinColourVector
// ... but rather use some correct FIMPL types
// REVIEW WITH PETER
#endif
SpinColourVector * tmp11 = reinterpret_cast<SpinColourVector *>(&(tmp1[0]()(0)(0)));
SpinColourVector * tmp22 = reinterpret_cast<SpinColourVector *>(&(tmp2[0]()(0)(0)));
SpinColourVector * tmp33 = reinterpret_cast<SpinColourVector *>(&(tmp3[0]()(0)(0)));
SpinVector tmp11s;
SpinVector tmp22s;
SpinVector tmp33s;
SpinVector tmp333;
SpinMatrix diquark;
SpinMatrix g_diquark;
SpinVector tmp222;
SpinVector tmp111;
assert(parity == 1 || parity == -1);
std::vector<std::vector<int>> epsilon = {{0,1,2},{1,2,0},{2,0,1},{0,2,1},{2,1,0},{1,0,2}};
std::vector<int> epsilon_sgn = {1,1,1,-1,-1,-1};
Gamma g4(Gamma::Algebra::GammaT);
gamma12_ = {
Gamma::Algebra::Identity, // I
Gamma::Algebra::Gamma5, // gamma_5
Gamma::Algebra::Identity, // I
};
gamma23_ = { // C = i gamma_2 gamma_4
Gamma::Algebra::SigmaXZ, // C gamma_5 = -i gamma_1 gamma_3
Gamma::Algebra::SigmaYT, // C = i gamma_2 gamma_4
Gamma::Algebra::GammaYGamma5, // i gamma_4 C gamma_5 = i gamma_2 gamma_5
};
std::vector<Complex> factor23{{0.,-1.},{0.,1.},{0.,1.}};
using BaryonTensorSet = Eigen::Tensor<Complex, 7>;
int Ngamma=3;
BaryonTensorSet BField3(Nmom,Ngamma,Nt,4,N_1,N_2,N_3);
Eigen::Tensor<Complex, 3> corr(Nmom,4,Nt);
Complex diquark2;
for (int i1=0 ; i1 < N_1 ; i1++){
for (int i2=0 ; i2 < N_2 ; i2++){
for (int i3=0 ; i3 < N_3 ; i3++){
for (int imom=0 ; imom < Nmom ; imom++){
for (int t=0 ; t < Nt ; t++){
Bindex = i1 + N_1*(i2 + N_2*(i3 + N_3*(imom+Nmom*t)));
ExtractSliceLocal(ftmp1,one[i1],0,t,3);
ExtractSliceLocal(ftmp2,two[i2],0,t,3);
ExtractSliceLocal(ftmp3,three[i3],0,t,3);
accelerator_for(sU, grid3d->oSites(), grid3d->Nsimd(),
{
for (int ie=0 ; ie < 6 ; ie++){
// Why does peekColour not work????
for (int is=0 ; is < 4 ; is++){
tmp11s()(is)() = tmp11[sU]()(is)(epsilon[ie][0]);
tmp22s()(is)() = tmp22[sU]()(is)(epsilon[ie][1]);
tmp33s()(is)() = tmp33[sU]()(is)(epsilon[ie][2]);
}
for (int ig=0 ; ig < Ngamma ; ig++){
tmp333 = Gamma(gamma23_[ig])*tmp33s;
tmp111 = Gamma(gamma12_[ig])*tmp11s;
tmp222 = g4*tmp111;
tmp111 = 0.5*(double)parity*(tmp111 + tmp222); // P_\pm * ...
diquark2 = factor23[0]*innerProduct(tmp22s,tmp333);
for (int is=0 ; is < 4 ; is++){
BField3(imom,ig,t,is,i1,i2,i3)+=static_cast<Real>(epsilon_sgn[ie])*tmp111()(is)()*diquark2;
}
}
}
} );
}
}
}
}
}
for (int is=0 ; is < 4 ; is++){
for (int t=0 ; t < Nt ; t++){
std::cout << "BaryonField(is=" << is << ",t=" << t << ") = " << BField3(0,0,t,is,0,0,0) << std::endl;
}
}
BFieldIO BField_save;
#ifdef FELIX_ISSUE
BField_save.BField = BField3;
#endif
std::string filename ="./" + output + ".h5";
std::cout << "Writing to file " << filename << std::endl;
Hdf5Writer writer(filename);
write(writer,"BaryonField",BField_save.BField);
}
END_MODULE_NAMESPACE
END_HADRONS_NAMESPACE
#endif // Hadrons_MDistil_BContraction_hpp_

36
Hadrons/Modules/MDistil/Baryon2pt.cc
View File

@ -1,36 +0,0 @@
/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: Hadrons/Modules/MDistil/Baryon2pt.cc
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 */
#include <Hadrons/Modules/MDistil/Baryon2pt.hpp>
using namespace Grid;
using namespace Hadrons;
using namespace MDistil;
template class Grid::Hadrons::MDistil::TBaryon2pt<FIMPL>;

221
Hadrons/Modules/MDistil/Baryon2pt.hpp
View File

@ -1,221 +0,0 @@
/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: Hadrons/Modules/MDistil/Baryon2pt.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_Baryon2pt_hpp_
#define Hadrons_MDistil_Baryon2pt_hpp_
#include <Hadrons/Global.hpp>
#include <Hadrons/Module.hpp>
#include <Hadrons/ModuleFactory.hpp>
#include <Hadrons/Solver.hpp>
#include <Hadrons/EigenPack.hpp>
#include <Hadrons/A2AVectors.hpp>
#include <Hadrons/DilutedNoise.hpp>
// These are members of Distillation
#include <Hadrons/Distil.hpp>
BEGIN_HADRONS_NAMESPACE
/******************************************************************************
* Baryon2pt *
******************************************************************************/
BEGIN_MODULE_NAMESPACE(MDistil)
class Baryon2ptPar: Serializable
{
public:
GRID_SERIALIZABLE_CLASS_MEMBERS(Baryon2ptPar,
std::string, inputL,
std::string, inputR,
std::string, quarksL,
std::string, quarksR,
std::string, output
);
};
template <typename FImpl>
class TBaryon2pt: public Module<Baryon2ptPar>
{
public:
// constructor
TBaryon2pt(const std::string name);
// destructor
virtual ~TBaryon2pt(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);
};
class C2IO: Serializable{
public:
using C2Set = Eigen::Tensor<Complex, 2>;
GRID_SERIALIZABLE_CLASS_MEMBERS(C2IO,
C2Set, C2
);
};
MODULE_REGISTER_TMP(Baryon2pt, TBaryon2pt<FIMPL>, MDistil);
/******************************************************************************
* TBaryon2pt implementation *
******************************************************************************/
// constructor /////////////////////////////////////////////////////////////////
template <typename FImpl>
TBaryon2pt<FImpl>::TBaryon2pt(const std::string name)
: Module<Baryon2ptPar>(name)
{}
// dependencies/products ///////////////////////////////////////////////////////
template <typename FImpl>
std::vector<std::string> TBaryon2pt<FImpl>::getInput(void)
{
std::vector<std::string> in;
return in;
}
template <typename FImpl>
std::vector<std::string> TBaryon2pt<FImpl>::getOutput(void)
{
std::vector<std::string> out = {getName()};
return out;
}
// setup ///////////////////////////////////////////////////////////////////////
template <typename FImpl>
void TBaryon2pt<FImpl>::setup(void)
{
}
// execution ///////////////////////////////////////////////////////////////////
template <typename FImpl>
void TBaryon2pt<FImpl>::execute(void)
{
const std::string &inputL{par().inputL};
const std::string &inputR{par().inputR};
const std::string &quarksL{par().quarksL};
const std::string &quarksR{par().quarksR};
const std::string &output{par().output};
int Nmom=1;
int Nt=32;
int Nc=3; //Num colours
std::vector<std::vector<int>> epsilon = {{0,1,2},{1,2,0},{2,0,1},{0,2,1},{2,1,0},{1,0,2}};
std::vector<int> epsilon_sgn = {1,1,1,-1,-1,-1};
int Ngamma=3;
int N_1=12;
int N_2=12;
int N_3=12;
// using BaryonTensorSet = Eigen::Tensor<Complex, 7>;
BFieldIO BFieldL;
BFieldL.BField.resize(Nmom,Nt,N_1,N_2,N_3,4);
std::string filenameL ="./" + inputL + ".h5";
std::cout << "Reading from file " << filenameL << std::endl;
Hdf5Reader readerL(filenameL);
read(readerL,"BaryonField",BFieldL.BField);
BFieldIO BFieldR;
BFieldR.BField.resize(Nmom,Nt,N_1,N_2,N_3,4);
std::string filenameR ="./" + inputR + ".h5";
std::cout << "Reading from file " << filenameR << std::endl;
Hdf5Reader readerR(filenameR);
read(readerR,"BaryonField",BFieldR.BField);
Eigen::Tensor<Complex, 2> corr(Nmom,Nt);
int Npairs = 0;
char left[] = "uud";
char right[] = "uud";
std::vector<int> pairs(6);
for (int ie=0, i=0 ; ie < 6 ; ie++){
if (left[0] == right[epsilon[ie][0]] && left[1] == right[epsilon[ie][1]] && left[2] == right[epsilon[ie][2]]){
pairs[i] = ie;
i++;
Npairs++;
}
}
pairs.resize(Npairs);
std::cout << Npairs << " pairs: " << pairs << std::endl;
for (int imom=0 ; imom < Nmom ; imom++){
for (int t=0 ; t < Nt ; t++){
corr(imom,t) = 0.;
}
}
int tsrc=0;
for (int ipair=0 ; ipair < Npairs ; ipair++){
Eigen::array<Eigen::IndexPair<int>, 3> product_dims = { Eigen::IndexPair<int>(0,epsilon[pairs[ipair]][0]),Eigen::IndexPair<int>(1,epsilon[pairs[ipair]][1]) ,Eigen::IndexPair<int>(2,epsilon[pairs[ipair]][2]) };
for (int imom=0 ; imom < Nmom ; imom++){
std::cout << imom << std::endl;
Eigen::Tensor<Complex,5> B5L = BFieldL.BField.chip(imom,0);
Eigen::Tensor<Complex,5> B5R = BFieldR.BField.chip(imom,0);
for (int t=0 ; t < Nt ; t++){
Eigen::Tensor<Complex,4> B4L = B5L.chip(t,0);
Eigen::Tensor<Complex,4> B4R = B5R.chip(tsrc,0);
for (int is=0 ; is < 4 ; is++){
Eigen::Tensor<Complex,3> B3L = B4L.chip(is,3);
Eigen::Tensor<Complex,3> B3R = B4R.chip(is,3);
Eigen::Tensor<Complex,0> C2 = B3L.contract(B3R,product_dims);
corr(imom,t) += static_cast<Real>(epsilon_sgn[pairs[ipair]])*C2(0);
}
}
}
}
for (int t=0 ; t < Nt ; t++){
std::cout << "C2(t=" << t << ") = " << corr(0,t) << std::endl;
}
/* C2IO C2_save;
C2_save.C2 = corr;
std::string filename ="./" + output + ".h5";
std::cout << "Writing to file " << filename << std::endl;
Hdf5Writer writer(filename);
write(writer,"C2",C2_save.C2);
*/
}
END_MODULE_NAMESPACE
END_HADRONS_NAMESPACE
#endif // Hadrons_MDistil_Baryon2pt_hpp_