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100 lines
3.4 KiB
C++
100 lines
3.4 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) 2016
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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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namespace Grid {
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class ScalarActionParameters : Serializable {
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public:
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GRID_SERIALIZABLE_CLASS_MEMBERS(ScalarActionParameters,
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double, mass_squared,
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double, lambda);
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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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// 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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// Typedefs to simplify notation
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typedef ScalarAdjGenericHMCRunner HMCWrapper; // Uses the default minimum norm, real scalar fields
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//::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
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HMCWrapper TheHMC;
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// Grid from the command line
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GridModule ScalarGrid;
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ScalarGrid.set_full(SpaceTimeGrid::makeFourDimGrid(
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GridDefaultLatt(), GridDefaultSimd(Nd, vComplex::Nsimd()),
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GridDefaultMpi()));
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ScalarGrid.set_rb(SpaceTimeGrid::makeFourDimRedBlackGrid(ScalarGrid.get_full()));
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TheHMC.Resources.AddGrid("scalar", ScalarGrid);
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// Possibile to create the module by hand
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// hardcoding parameters or using a Reader
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// Checkpointer definition
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CheckpointerParameters CPparams;
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CPparams.config_prefix = "ckpoint_scalar_lat";
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CPparams.rng_prefix = "ckpoint_scalar_rng";
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CPparams.saveInterval = 50;
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CPparams.format = "IEEE64BIG";
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TheHMC.Resources.LoadBinaryCheckpointer(CPparams);
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RNGModuleParameters RNGpar;
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RNGpar.serial_seeds = "1 2 3 4 5";
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RNGpar.parallel_seeds = "6 7 8 9 10";
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TheHMC.Resources.SetRNGSeeds(RNGpar);
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/////////////////////////////////////////////////////////////
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// Collect actions, here use more encapsulation
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// Scalar action in adjoint representation
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ScalarActionParameters SPar;
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SPar.mass_squared = 0.5;
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SPar.lambda = 0.1;
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ScalarAdjActionR Saction(SPar.mass_squared, SPar.lambda);
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// Collect actions
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ActionLevel<ScalarAdjActionR::Field, ScalarMatrixFields> Level1(1);
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Level1.push_back(&Saction);
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TheHMC.TheAction.push_back(Level1);
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/////////////////////////////////////////////////////////////
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// HMC parameters are serialisable
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TheHMC.Parameters.MD.MDsteps = 20;
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TheHMC.Parameters.MD.trajL = 1.0;
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TheHMC.ReadCommandLine(argc, argv);
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TheHMC.Run();
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Grid_finalize();
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} // main
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