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Hadrons: added tests for 3pt contractions.

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This commit is contained in:
Lanny91
2017-07-16 13:45:55 +01:00
parent 6293d438cd
commit 0366288b1c
2 changed files with 182 additions and 15 deletions
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73
tests/hadrons/Test_hadrons.hpp
View File

@@ -269,6 +269,26 @@ inline void makeConservedSequentialSource(Application &application,
}
}
/*******************************************************************************
* Name: makeNoiseSource
* Parameters: application - main application that stores modules.
* srcName - name of source module to create.
* tA - lower source timeslice limit.
* tB - upper source timeslice limit.
* Returns: None.
******************************************************************************/
inline void makeNoiseSource(Application &application, std::string &srcName,
unsigned int tA, unsigned int tB)
{
if (!(Environment::getInstance().hasModule(srcName)))
{
MSource::Z2::Par noisePar;
noisePar.tA = tA;
noisePar.tB = tB;
application.createModule<MSource::Z2>(srcName, noisePar);
}
}
/*******************************************************************************
* Name: makeWallSource
* Purpose: Construct wall source and add to application module.
@@ -292,26 +312,46 @@ inline void makeWallSource(Application &application, std::string &srcName,
}
/*******************************************************************************
* Name: makeWallSink
* Purpose: Wall sink smearing of a propagator.
* Name: makePointSink
* Purpose: Create function for point sink smearing of a propagator.
* Parameters: application - main application that stores modules.
* propName - name of input propagator.
* wallName - name of smeared propagator.
* sinkFnct - name of output sink smearing module.
* mom - momentum insertion (default is zero).
* Returns: None.
******************************************************************************/
inline void makeWallSink(Application &application, std::string &propName,
std::string &wallName, std::string mom = ZERO_MOM)
inline void makePointSink(Application &application, std::string &sinkFnct,
std::string mom = ZERO_MOM)
{
// If the sink function already exists, don't make it again.
if (!(Environment::getInstance().hasModule(sinkFnct)))
{
MSink::Point::Par pointPar;
pointPar.mom = mom;
application.createModule<MSink::Point>(sinkFnct, pointPar);
}
}
/*******************************************************************************
* Name: sinkSmear
* Purpose: Perform sink smearing of a propagator.
* Parameters: application - main application that stores modules.
* sinkFnct - sink smearing module.
* propName - propagator to smear.
* smearedProp - name of output smeared propagator.
* Returns: None.
******************************************************************************/
inline void sinkSmear(Application &application, std::string &sinkFnct,
std::string &propName, std::string &smearedProp)
{
// 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)))
if (!(Environment::getInstance().hasModule(smearedProp)))
{
MSink::Wall::Par wallPar;
wallPar.q = propName;
wallPar.mom = mom;
application.createModule<MSink::Wall>(wallName, wallPar);
}*/
MSink::Smear::Par smearPar;
smearPar.q = propName;
smearPar.sink = sinkFnct;
application.createModule<MSink::Smear>(smearedProp, smearPar);
}
}
/*******************************************************************************
@@ -398,16 +438,18 @@ inline void mesonContraction(Application &application,
* 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.
* q1 - quark propagator 1, sink smeared.
* q2 - quark propagator 2.
* q3 - quark propagator 3.
* label - unique label to construct module name.
* tSnk - sink position of sink for q1.
* 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,
unsigned int tSnk = 0,
Gamma::Algebra gamma = Gamma::Algebra::Identity)
{
std::string modName = std::to_string(npt) + "pt_" + label;
@@ -418,6 +460,7 @@ inline void gamma3ptContraction(Application &application, unsigned int npt,
gamma3ptPar.q1 = q1;
gamma3ptPar.q2 = q2;
gamma3ptPar.q3 = q3;
gamma3ptPar.tSnk = tSnk;
gamma3ptPar.gamma = gamma;
application.createModule<MContraction::Gamma3pt>(modName, gamma3ptPar);
}
@@ -434,13 +477,14 @@ inline void gamma3ptContraction(Application &application, unsigned int npt,
* q3 - quark propagator 3.
* q4 - quark propagator 4.
* label - unique label to construct module name.
* tSnk - time position of sink (for sink smearing).
* 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 &label, unsigned int tSnk = 0)\
{\
std::string modName = std::to_string(npt) + "pt_" + label;\
if (!(Environment::getInstance().hasModule(modName)))\
@@ -451,6 +495,7 @@ inline void weakContraction##top(Application &application, unsigned int npt,\
weakPar.q2 = q2;\
weakPar.q3 = q3;\
weakPar.q4 = q4;\
weakPar.tSnk = tSnk;\
application.createModule<MContraction::WeakHamiltonian##top>(modName, weakPar);\
}\
}

122
tests/hadrons/Test_hadrons_3pt_contractions.cc Normal file
View File

@@ -0,0 +1,122 @@
/*******************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: tests/hadrons/Test_hadrons_3pt_contractions.cc
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 "Test_hadrons.hpp"
using namespace Grid;
using namespace Hadrons;
int main(int argc, char *argv[])
{
// initialization //////////////////////////////////////////////////////////
HADRONS_DEFAULT_INIT;
// run setup ///////////////////////////////////////////////////////////////
Application application;
double mass = 0.04;
double M5 = 1.8;
unsigned int Ls = 12;
unsigned int nt = GridDefaultLatt()[Tp];
unsigned int t_i = 0;
unsigned int t_f = nt / 2;
std::string mom = "1. 0. 0. 0.";
// global parameters
HADRONS_DEFAULT_GLOBALS(application);
// gauge field
std::string gaugeField = "gauge";
application.createModule<MGauge::Unit>(gaugeField);
// Action & solver setup.
std::string action = "DWF";
std::string solver = "CG";
makeDWFAction(application, action, gaugeField, mass, M5, Ls);
makeRBPrecCGSolver(application, solver, action);
/***************************************************************************
* Weak Contraction test: Non-Eye class.
**************************************************************************/
// Make wall source propagators for each leg of 4-quark vertex.
std::string q_i_0 = "q_i_0";
std::string q_i_p = "q_i_p";
std::string q_f_0 = "q_f_0";
std::string q_f_p = "q_f_p";
MAKE_WALL_PROP(t_i, q_i_0, solver);
MAKE_WALL_PROP(t_f, q_f_0, solver);
MAKE_3MOM_WALL_PROP(t_i, mom, q_i_p, solver);
MAKE_3MOM_WALL_PROP(t_f, mom, q_f_p, solver);
// Perform contractions, zero and non-zero momentum.
std::string HW_CW_0 = LABEL_3PT("HW_CW_0", t_i, t_f);
std::string HW_CW_p = LABEL_3PT("HW_CW_p", t_i, t_f);
weakContractionNonEye(application, 3, q_i_0, q_i_0, q_f_0, q_f_0, HW_CW_0);
weakContractionNonEye(application, 3, q_i_0, q_i_p, q_f_p, q_f_0, HW_CW_p);
/***************************************************************************
* Weak Contraction test: Eye-class.
**************************************************************************/
// Create random propagator for loop.
std::string eta = "noise_source";
makeNoiseSource(application, eta, 0, nt - 1);
std::string loopProp = "loop";
std::string loopRes = loopProp + "_res";
makePropagator(application, loopRes, eta, solver);
makeLoop(application, loopProp, eta, loopRes);
// Wall sink smear the propagator directly connecting the source & sink.
// (i.e. make point sink but smear before the contraction)
std::string wallSink = "wall_sink";
std::string qWall = "q_wall";
makePointSink(application, wallSink);
sinkSmear(application, wallSink, q_i_0, qWall);
// Perform contractions, zero and non-zero momentum.
std::string HW_SE_0 = LABEL_3PT("HW_SE_0", t_i, t_f);
std::string HW_SE_p = LABEL_3PT("HW_SE_p", t_i, t_f);
weakContractionEye(application, 3, qWall, q_i_0, q_f_p, loopProp, HW_SE_0, t_f);
weakContractionEye(application, 3, qWall, q_i_p, q_f_p, loopProp, HW_SE_p, t_f);
/***************************************************************************
* Gamma insertion test.
**************************************************************************/
Gamma::Algebra gamma = Gamma::Algebra::GammaT;
std::string sd_0 = LABEL_3PT("sd_0", t_i, t_f);
std::string sd_p = LABEL_3PT("sd_p", t_i, t_f);
gamma3ptContraction(application, 3, qWall, q_i_0, q_f_0, sd_0, t_f, gamma);
gamma3ptContraction(application, 3, qWall, q_i_p, q_f_p, sd_p, t_f, gamma);
// execution
application.saveParameterFile("ContractionTest3pt.xml");
application.run();
// epilogue
LOG(Message) << "Grid is finalizing now" << std::endl;
Grid_finalize();
return EXIT_SUCCESS;
}