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Added laplacian operator for smearing sources
This commit is contained in:
Guido Cossu
105
tests/core/Test_laplacian.cc
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105
tests/core/Test_laplacian.cc
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/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: ./tests/Test_laplacian.cc
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Copyright (C) 2017
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Author: Guido Cossu <guido.cossu@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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#include <Grid/Grid.h>
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using namespace std;
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using namespace Grid;
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using namespace Grid::QCD;
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int main (int argc, char ** argv)
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{
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Grid_init(&argc,&argv);
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std::vector<int> latt_size = GridDefaultLatt();
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std::vector<int> simd_layout = GridDefaultSimd(Nd,vComplex::Nsimd());
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std::vector<int> mpi_layout = GridDefaultMpi();
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GridCartesian Grid(latt_size,simd_layout,mpi_layout);
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GridRedBlackCartesian RBGrid(&Grid);
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int threads = GridThread::GetThreads();
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std::cout<<GridLogMessage << "Grid is setup to use "<<threads<<" threads"<<std::endl;
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GridParallelRNG pRNG(&Grid);
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pRNG.SeedFixedIntegers(std::vector<int>({45,12,81,9}));
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std::vector<int> point({0,0,0,0});
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LatticeFermion src (&Grid); //random(pRNG,src);
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SpinColourVectorD Sp;
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for (unsigned int s = 0; s < Ns; ++s)
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for (unsigned int c = 0; c < Nc; ++c)
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Sp()(s)(c) = 1;
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src = zero;
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pokeSite(Sp,src,point);
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LatticeFermion result(&Grid); result=zero;
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LatticeFermion tmp(&Grid); tmp=zero;
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// Gauge configuration
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LatticeGaugeField Umu(&Grid); SU3::HotConfiguration(pRNG,Umu);
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std::cout<<GridLogMessage<<"=============================================================="<<std::endl;
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std::cout<<GridLogMessage<<"= Testing the laplacian operator on a point source "<<std::endl;
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std::cout<<GridLogMessage<<"=============================================================="<<std::endl;
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Laplacian<WilsonImplR> LaplaceOperator(src._grid);
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LaplaceOperator.ImportGauge(Umu);
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LaplaceOperator.M(src, result);
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std::cout << "Source vector" << std::endl;
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std::cout << src << std::endl;
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std::cout << "Result vector" << std::endl;
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std::cout << result << std::endl;
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std::cout<<GridLogMessage<<"=============================================================="<<std::endl;
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std::cout<<GridLogMessage<<"= Testing the laplacian smearing operator on a point source "<<std::endl;
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std::cout<<GridLogMessage<<"=============================================================="<<std::endl;
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LatticeFermion smeared (&Grid); smeared = src;
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for (int smr = 0; smr < 10; ++smr)
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{
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LaplaceOperator.M(smeared, tmp);
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smeared += 0.1*tmp;
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}
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std::cout << "Smeared vector" << std::endl;
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std::cout << smeared << std::endl;
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// Norm of vector
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LatticeComplex smr_norm(&Grid);
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smr_norm = localNorm2(smeared);
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std::cout << "Smeared vector norm" << std::endl;
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std::cout << smr_norm << std::endl;
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Grid_finalize();
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}
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195
tests/hadrons/Test_hadrons_meson_3pt_laplacian.cc
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195
tests/hadrons/Test_hadrons_meson_3pt_laplacian.cc
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/*******************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: tests/hadrons/Test_hadrons_meson_3pt.cc
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Copyright (C) 2015
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Author: Antonin Portelli <antonin.portelli@me.com>
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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
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directory.
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*******************************************************************************/
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#include <Grid/Hadrons/Application.hpp>
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using namespace Grid;
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using namespace Hadrons;
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int main(int argc, char *argv[])
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{
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// initialization //////////////////////////////////////////////////////////
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Grid_init(&argc, &argv);
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HadronsLogError.Active(GridLogError.isActive());
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HadronsLogWarning.Active(GridLogWarning.isActive());
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HadronsLogMessage.Active(GridLogMessage.isActive());
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HadronsLogIterative.Active(GridLogIterative.isActive());
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HadronsLogDebug.Active(GridLogDebug.isActive());
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LOG(Message) << "Grid initialized" << std::endl;
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// run setup ///////////////////////////////////////////////////////////////
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Application application;
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std::vector<std::string> flavour = {"l", "s", "c1", "c2", "c3"};
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std::vector<double> mass = {.01, .04, .2 , .25 , .3 };
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unsigned int nt = GridDefaultLatt()[Tp];
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// global parameters
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Application::GlobalPar globalPar;
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globalPar.trajCounter.start = 1500;
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globalPar.trajCounter.end = 1520;
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globalPar.trajCounter.step = 20;
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globalPar.seed = "1 2 3 4";
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globalPar.genetic.maxGen = 1000;
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globalPar.genetic.maxCstGen = 200;
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globalPar.genetic.popSize = 20;
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globalPar.genetic.mutationRate = .1;
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application.setPar(globalPar);
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// gauge field
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application.createModule<MGauge::Unit>("gauge");
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// set fermion boundary conditions to be periodic space, antiperiodic time.
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std::string boundary = "1 1 1 -1";
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// sink
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MSink::Point::Par sinkPar;
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sinkPar.mom = "0 0 0";
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application.createModule<MSink::ScalarPoint>("sink", sinkPar);
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for (unsigned int i = 0; i < flavour.size(); ++i)
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{
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// actions
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MAction::DWF::Par actionPar;
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actionPar.gauge = "gauge";
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actionPar.Ls = 12;
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actionPar.M5 = 1.8;
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actionPar.mass = mass[i];
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actionPar.boundary = boundary;
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application.createModule<MAction::DWF>("DWF_" + flavour[i], actionPar);
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// solvers
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MSolver::RBPrecCG::Par solverPar;
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solverPar.action = "DWF_" + flavour[i];
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solverPar.residual = 1.0e-8;
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application.createModule<MSolver::RBPrecCG>("CG_" + flavour[i],
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solverPar);
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}
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for (unsigned int t = 0; t < nt; t += 1)
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{
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std::string srcName;
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std::string lapName;
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std::vector<std::string> qName;
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std::vector<std::vector<std::string>> seqName;
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// Z2 source
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MSource::Z2::Par z2Par;
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z2Par.tA = t;
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z2Par.tB = t;
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srcName = "z2_" + std::to_string(t);
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application.createModule<MSource::Z2>(srcName, z2Par);
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// Example of smearing of the source
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MSource::Laplacian::Par LapPar;
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LapPar.N = 10;
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LapPar.alpha = 0.1;
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LapPar.source = srcName;
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LapPar.gauge = "gauge";
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lapName = "z2smr_" + std::to_string(t);
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application.createModule<MSource::Laplacian>(lapName, LapPar);
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for (unsigned int i = 0; i < flavour.size(); ++i)
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{
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// sequential sources
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MSource::SeqGamma::Par seqPar;
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qName.push_back("QZ2_" + flavour[i] + "_" + std::to_string(t));
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seqPar.q = qName[i];
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seqPar.tA = (t + nt/4) % nt;
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seqPar.tB = (t + nt/4) % nt;
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seqPar.mom = "1. 0. 0. 0.";
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seqName.push_back(std::vector<std::string>(Nd));
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for (unsigned int mu = 0; mu < Nd; ++mu)
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{
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seqPar.gamma = 0x1 << mu;
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seqName[i][mu] = "G" + std::to_string(seqPar.gamma)
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+ "_" + std::to_string(seqPar.tA) + "-"
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+ qName[i];
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application.createModule<MSource::SeqGamma>(seqName[i][mu], seqPar);
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}
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// propagators
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MFermion::GaugeProp::Par quarkPar;
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quarkPar.solver = "CG_" + flavour[i];
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quarkPar.source = srcName;
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application.createModule<MFermion::GaugeProp>(qName[i], quarkPar);
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for (unsigned int mu = 0; mu < Nd; ++mu)
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{
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quarkPar.source = seqName[i][mu];
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seqName[i][mu] = "Q_" + flavour[i] + "-" + seqName[i][mu];
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application.createModule<MFermion::GaugeProp>(seqName[i][mu], quarkPar);
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}
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}
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// contractions
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MContraction::Meson::Par mesPar;
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for (unsigned int i = 0; i < flavour.size(); ++i)
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for (unsigned int j = i; j < flavour.size(); ++j)
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{
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mesPar.output = "mesons/Z2_" + flavour[i] + flavour[j];
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mesPar.q1 = qName[i];
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mesPar.q2 = qName[j];
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mesPar.gammas = "all";
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mesPar.sink = "sink";
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application.createModule<MContraction::Meson>("meson_Z2_"
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+ std::to_string(t)
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+ "_"
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+ flavour[i]
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+ flavour[j],
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mesPar);
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}
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for (unsigned int i = 0; i < flavour.size(); ++i)
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for (unsigned int j = 0; j < flavour.size(); ++j)
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for (unsigned int mu = 0; mu < Nd; ++mu)
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{
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MContraction::Meson::Par mesPar;
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mesPar.output = "3pt/Z2_" + flavour[i] + flavour[j] + "_"
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+ std::to_string(mu);
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mesPar.q1 = qName[i];
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mesPar.q2 = seqName[j][mu];
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mesPar.gammas = "all";
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mesPar.sink = "sink";
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application.createModule<MContraction::Meson>("3pt_Z2_"
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+ std::to_string(t)
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+ "_"
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+ flavour[i]
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+ flavour[j]
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+ "_"
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+ std::to_string(mu),
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mesPar);
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}
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}
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// execution
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application.saveParameterFile("meson3pt.xml");
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application.run();
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// epilogue
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LOG(Message) << "Grid is finalizing now" << std::endl;
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Grid_finalize();
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return EXIT_SUCCESS;
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}
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