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Grid/tests/hadrons/Test_hadrons.hpp

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/*******************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: tests/hadrons/Test_hadrons.hpp
Copyright (C) 2017
Author: Andrew Lawson <andrew.lawson1991@gmail.com>
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.
*******************************************************************************/
#include <Grid/Hadrons/Application.hpp>
using namespace Grid;
using namespace Hadrons;
/*******************************************************************************
* Macros to reduce code duplication.
******************************************************************************/
// Useful definitions
#define ZERO_MOM "0. 0. 0. 0."
#define INIT_INDEX(s, n) (std::string(s) + "_" + std::to_string(n))
#define ADD_INDEX(s, n) (s + "_" + std::to_string(n))
#define LABEL_3PT(s, t1, t2) ADD_INDEX(INIT_INDEX(s, t1), t2)
#define LABEL_4PT(s, t1, t2, t3) ADD_INDEX(ADD_INDEX(INIT_INDEX(s, t1), t2), t3)
#define LABEL_4PT_NOISE(s, t1, t2, t3, nn) ADD_INDEX(ADD_INDEX(ADD_INDEX(INIT_INDEX(s, t1), t2), t3), nn)
// Wall source/sink macros
#define NAME_3MOM_WALL_SOURCE(t, mom) ("wall_" + std::to_string(t) + "_" + mom)
#define NAME_WALL_SOURCE(t) NAME_3MOM_WALL_SOURCE(t, ZERO_MOM)
#define NAME_POINT_SOURCE(pos) ("point_" + pos)
#define MAKE_3MOM_WALL_PROP(tW, mom, propName, solver)\
{\
std::string srcName = NAME_3MOM_WALL_SOURCE(tW, mom);\
makeWallSource(application, srcName, tW, mom);\
makePropagator(application, propName, srcName, solver);\
}
#define MAKE_WALL_PROP(tW, propName, solver)\
MAKE_3MOM_WALL_PROP(tW, ZERO_MOM, propName, solver)
// Sequential source macros
#define MAKE_SEQUENTIAL_PROP(tS, qSrc, mom, propName, solver)\
{\
std::string srcName = ADD_INDEX(qSrc + "_seq", tS);\
makeSequentialSource(application, srcName, qSrc, tS, mom);\
makePropagator(application, propName, srcName, solver);\
}
// Point source macros
#define MAKE_POINT_PROP(pos, propName, solver)\
{\
std::string srcName = NAME_POINT_SOURCE(pos);\
makePointSource(application, srcName, pos);\
makePropagator(application, propName, srcName, solver);\
}
/*******************************************************************************
* Functions for propagator construction.
******************************************************************************/
/*******************************************************************************
* Name: makePointSource
* Purpose: Construct point source and add to application module.
* Parameters: application - main application that stores modules.
* srcName - name of source module to create.
* pos - Position of point source.
* Returns: None.
******************************************************************************/
inline void makePointSource(Application &application, std::string srcName,
std::string pos)
{
// If the source already exists, don't make the module again.
if (!(Environment::getInstance().hasModule(srcName)))
{
MSource::Point::Par pointPar;
pointPar.position = pos;
application.createModule<MSource::Point>(srcName, pointPar);
}
}
/*******************************************************************************
* Name: makeSequentialSource
* Purpose: Construct sequential source and add to application module.
* Parameters: application - main application that stores modules.
* srcName - name of source module to create.
* qSrc - Input quark for sequential inversion.
* tS - sequential source timeslice.
* mom - momentum insertion (default is zero).
* Returns: None.
******************************************************************************/
inline void makeSequentialSource(Application &application, std::string srcName,
std::string qSrc, unsigned int tS,
std::string mom = ZERO_MOM)
{
// If the source already exists, don't make the module again.
if (!(Environment::getInstance().hasModule(srcName)))
{
MSource::SeqGamma::Par seqPar;
seqPar.q = qSrc;
seqPar.tA = tS;
seqPar.tB = tS;
seqPar.mom = mom;
seqPar.gamma = Gamma::Algebra::GammaT;
application.createModule<MSource::SeqGamma>(srcName, seqPar);
}
}
/*******************************************************************************
* Name: makeWallSource
* Purpose: Construct wall source and add to application module.
* Parameters: application - main application that stores modules.
* srcName - name of source module to create.
* tW - wall source timeslice.
* mom - momentum insertion (default is zero).
* Returns: None.
******************************************************************************/
inline void makeWallSource(Application &application, std::string srcName,
unsigned int tW, std::string mom = ZERO_MOM)
{
// If the source already exists, don't make the module again.
if (!(Environment::getInstance().hasModule(srcName)))
{
MSource::Wall::Par wallPar;
wallPar.tW = tW;
wallPar.mom = mom;
application.createModule<MSource::Wall>(srcName, wallPar);
}
}
/*******************************************************************************
* Name: makeWallSink
* Purpose: Wall sink smearing of a propagator.
* Parameters: application - main application that stores modules.
* propName - name of input propagator.
* wallName - name of smeared propagator.
* mom - momentum insertion (default is zero).
* Returns: None.
******************************************************************************/
inline void makeWallSink(Application &application, std::string propName,
std::string wallName, std::string mom = ZERO_MOM)
{
// If the propagator has already been smeared, don't smear it again.
// Temporarily removed, strategy for sink smearing likely to change.
/*if (!(Environment::getInstance().hasModule(wallName)))
{
MSink::Wall::Par wallPar;
wallPar.q = propName;
wallPar.mom = mom;
application.createModule<MSink::Wall>(wallName, wallPar);
}*/
}
/*******************************************************************************
* Name: makePropagator
* Purpose: Construct source and propagator then add to application module.
* Parameters: application - main application that stores modules.
* propName - name of propagator module to create.
* srcName - name of source module to use.
* solver - solver to use (default is CG).
* Returns: None.
******************************************************************************/
inline void makePropagator(Application &application, std::string &propName,
std::string &srcName, std::string &solver)
{
// If the propagator already exists, don't make the module again.
if (!(Environment::getInstance().hasModule(propName)))
{
Quark::Par quarkPar;
quarkPar.source = srcName;
quarkPar.solver = solver;
application.createModule<Quark>(propName, quarkPar);
}
}
/*******************************************************************************
* Name: makeLoop
* Purpose: Use noise source and inversion result to make loop propagator, then
* add to application module.
* Parameters: application - main application that stores modules.
* propName - name of propagator module to create.
* srcName - name of noise source module to use.
* resName - name of inversion result on given noise source.
* Returns: None.
******************************************************************************/
inline void makeLoop(Application &application, std::string &propName,
std::string &srcName, std::string &resName)
{
// If the loop propagator already exists, don't make the module again.
if (!(Environment::getInstance().hasModule(propName)))
{
MLoop::NoiseLoop::Par loopPar;
loopPar.q = resName;
loopPar.eta = srcName;
application.createModule<MLoop::NoiseLoop>(propName, loopPar);
}
}
/*******************************************************************************
* Contraction module creation.
******************************************************************************/
/*******************************************************************************
* Name: mesonContraction
* Purpose: Create meson contraction module and add to application module.
* Parameters: application - main application that stores modules.
* npt - specify n-point correlator (for labelling).
* q1 - quark propagator 1.
* q2 - quark propagator 2.
* label - unique label to construct module name.
* mom - momentum to project (default is zero)
* gammas - gamma insertions at source and sink.
* Returns: None.
******************************************************************************/
inline void mesonContraction(Application &application, unsigned int npt,
std::string &q1, std::string &q2,
std::string &label,
std::string mom = ZERO_MOM,
std::string gammas = "<Gamma5 Gamma5>")
{
std::string modName = std::to_string(npt) + "pt_" + label;
if (!(Environment::getInstance().hasModule(modName)))
{
MContraction::Meson::Par mesPar;
mesPar.output = std::to_string(npt) + "pt/" + label;
mesPar.q1 = q1;
mesPar.q2 = q2;
mesPar.mom = mom;
mesPar.gammas = gammas;
application.createModule<MContraction::Meson>(modName, mesPar);
}
}
/*******************************************************************************
* Name: gamma3ptContraction
* Purpose: Create gamma3pt contraction module and add to application module.
* Parameters: application - main application that stores modules.
* npt - specify n-point correlator (for labelling).
* q1 - quark propagator 1.
* q2 - quark propagator 2.
* q3 - quark propagator 3.
* label - unique label to construct module name.
* gamma - gamma insertions between q2 and q3.
* Returns: None.
******************************************************************************/
inline void gamma3ptContraction(Application &application, unsigned int npt,
std::string &q1, std::string &q2,
std::string &q3, std::string &label,
Gamma::Algebra gamma = Gamma::Algebra::Identity)
{
std::string modName = std::to_string(npt) + "pt_" + label;
if (!(Environment::getInstance().hasModule(modName)))
{
MContraction::Gamma3pt::Par gamma3ptPar;
gamma3ptPar.output = std::to_string(npt) + "pt/" + label;
gamma3ptPar.q1 = q1;
gamma3ptPar.q2 = q2;
gamma3ptPar.q3 = q3;
gamma3ptPar.gamma = gamma;
application.createModule<MContraction::Gamma3pt>(modName, gamma3ptPar);
}
}
/*******************************************************************************
* Name: weakContraction[Eye,NonEye]
* Purpose: Create Weak Hamiltonian contraction module for Eye/NonEye topology
* and add to application module.
* Parameters: application - main application that stores modules.
* npt - specify n-point correlator (for labelling).
* q1 - quark propagator 1.
* q2 - quark propagator 2.
* q3 - quark propagator 3.
* q4 - quark propagator 4.
* label - unique label to construct module name.
* Returns: None.
******************************************************************************/
#define HW_CONTRACTION(top) \
inline void weakContraction##top(Application &application, unsigned int npt,\
std::string &q1, std::string &q2, \
std::string &q3, std::string &q4, \
std::string &label)\
{\
std::string modName = std::to_string(npt) + "pt_" + label;\
if (!(Environment::getInstance().hasModule(modName)))\
{\
MContraction::WeakHamiltonian##top::Par weakPar;\
weakPar.output = std::to_string(npt) + "pt/" + label;\
weakPar.q1 = q1;\
weakPar.q2 = q2;\
weakPar.q3 = q3;\
weakPar.q4 = q4;\
application.createModule<MContraction::WeakHamiltonian##top>(modName, weakPar);\
}\
}
HW_CONTRACTION(Eye) // weakContractionEye
HW_CONTRACTION(NonEye) // weakContractionNonEye
/*******************************************************************************
* Name: disc0Contraction
* Purpose: Create contraction module for 4pt Weak Hamiltonian + current
* disconnected topology for neutral mesons and add to application
* module.
* Parameters: application - main application that stores modules.
* q1 - quark propagator 1.
* q2 - quark propagator 2.
* q3 - quark propagator 3.
* q4 - quark propagator 4.
* label - unique label to construct module name.
* Returns: None.
******************************************************************************/
inline void disc0Contraction(Application &application,
std::string &q1, std::string &q2,
std::string &q3, std::string &q4,
std::string &label)
{
std::string modName = "4pt_" + label;
if (!(Environment::getInstance().hasModule(modName)))
{
MContraction::WeakNeutral4ptDisc::Par disc0Par;
disc0Par.output = "4pt/" + label;
disc0Par.q1 = q1;
disc0Par.q2 = q2;
disc0Par.q3 = q3;
disc0Par.q4 = q4;
application.createModule<MContraction::WeakNeutral4ptDisc>(modName, disc0Par);
}
}
/*******************************************************************************
* Name: discLoopContraction
* Purpose: Create contraction module for disconnected loop and add to
* application module.
* Parameters: application - main application that stores modules.
* q_loop - loop quark propagator.
* modName - unique module name.
* gamma - gamma matrix to use in contraction.
* Returns: None.
******************************************************************************/
inline void discLoopContraction(Application &application,
std::string &q_loop, std::string &modName,
Gamma::Algebra gamma = Gamma::Algebra::Identity)
{
if (!(Environment::getInstance().hasModule(modName)))
{
MContraction::DiscLoop::Par discPar;
discPar.output = "disc/" + modName;
discPar.q_loop = q_loop;
discPar.gamma = gamma;
application.createModule<MContraction::DiscLoop>(modName, discPar);
}
}
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