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124 lines
4.0 KiB
C++
124 lines
4.0 KiB
C++
/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: ./tests/Test_hmc_WilsonFermionGauge.cc
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Copyright (C) 2015
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Author: Peter Boyle <pabobyle@ph.ed.ac.uk>
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Author: neo <cossu@post.kek.jp>
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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
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directory
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*************************************************************************************/
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/* END LEGAL */
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#include <Grid/Grid.h>
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namespace Grid {
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namespace QCD {
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//Change here the type of reader
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typedef Grid::XmlReader InputFileReader;
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class HMCRunnerParameters : Serializable {
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public:
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GRID_SERIALIZABLE_CLASS_MEMBERS(HMCRunnerParameters,
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double, beta,
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int, MDsteps,
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double, TrajectoryLength,
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std::string, serial_seeds,
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std::string, parallel_seeds,
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);
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HMCRunnerParameters() {}
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};
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}
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}
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int main(int argc, char **argv) {
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using namespace Grid;
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using namespace Grid::QCD;
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Grid_init(&argc, &argv);
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int threads = GridThread::GetThreads();
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// Typedefs to simplify notation
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typedef GenericHMCRunner<MinimumNorm2> HMCWrapper; // Uses the default minimum norm
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// here make a routine to print all the relevant information on the run
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std::cout << GridLogMessage << "Grid is setup to use " << threads << " threads" << std::endl;
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//////////////////////////////////////////////////////////////
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// Input file section
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// make input file name general
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// now working with the text reader but I should drop this support
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// i need a structured format where every object is able
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// to locate the required data: XML, JSON, YAML.
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InputFileReader Reader("input.wilson_gauge.params.xml");
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HMCRunnerParameters HMCPar;
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read(Reader, "HMC", HMCPar);
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// Seeds for the random number generators
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// generalise, ugly now
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std::vector<int> SerSeed = strToVec<int>(HMCPar.serial_seeds);
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std::vector<int> ParSeed = strToVec<int>(HMCPar.parallel_seeds);
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HMCWrapper TheHMC;
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TheHMC.Resources.AddFourDimGrid("gauge");
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// here using the Reader but an overloaded function to pass the
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// parameters class is provided
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TheHMC.Resources.LoadBinaryCheckpointer(Reader);
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/////////////////////////////////////////////////////////////
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// Collect actions, here use more encapsulation
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// need wrappers of the fermionic classes
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// that have a complex construction
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// Gauge action
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WilsonGaugeActionR Waction(HMCPar.beta);
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ActionLevel<HMCWrapper::Field> Level1(1);
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Level1.push_back(&Waction);
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TheHMC.TheAction.push_back(Level1);
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/////////////////////////////////////////////////////////////
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// Construct observables
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PlaquetteLogger<HMCWrapper::ImplPolicy> PlaqLog("Plaquette");
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TheHMC.ObservablesList.push_back(&PlaqLog);
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//////////////////////////////////////////////
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// Fill resources
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// here we can simplify a lot if the input file is structured
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// just pass the input file reader
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TheHMC.Resources.AddRNGSeeds(SerSeed, ParSeed);
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TheHMC.MDparameters.set(HMCPar.MDsteps, HMCPar.TrajectoryLength);
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// eventually smearing here
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// ...
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////////////////////////////////////////////////////////////////
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TheHMC.ReadCommandLine(argc, argv); // these must be parameters from file
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TheHMC.Run(); // no smearing
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Grid_finalize();
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} // main
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