Added Scalar action for fields in the adjoint representation

2025-11-04 05:54:32 +00:00 · 2017-03-14 14:55:18 +09:00
parent b3dede4dd3
commit 831ca4e3bf
7 changed files with 227 additions and 121 deletions
--- a/tests/hmc/Test_hmc_ScalarActionNxN.cc
+++ b/tests/hmc/Test_hmc_ScalarActionNxN.cc
@@ -0,0 +1,100 @@
+/*************************************************************************************
+
+Grid physics library, www.github.com/paboyle/Grid
+
+Source file: ./tests/Test_hmc_WilsonFermionGauge.cc
+
+Copyright (C) 2016
+
+Author: Guido Cossu <guido.cossu@ed.ac.uk>
+
+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
+*************************************************************************************/
+/*  END LEGAL */
+#include <Grid/Grid.h>
+namespace Grid{
+class ScalarActionParameters : Serializable {
+ public:
+  GRID_SERIALIZABLE_CLASS_MEMBERS(ScalarActionParameters,
+    double, mass_squared,
+    double, lambda);
+};
+
+}
+int main(int argc, char **argv) {
+  using namespace Grid;
+  using namespace Grid::QCD;
+
+  Grid_init(&argc, &argv);
+  int threads = GridThread::GetThreads();
+  // here make a routine to print all the relevant information on the run
+  std::cout << GridLogMessage << "Grid is setup to use " << threads << " threads" << std::endl;
+
+   // Typedefs to simplify notation
+  typedef ScalarAdjGenericHMCRunner HMCWrapper;  // Uses the default minimum norm, real scalar fields
+
+  //::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+  HMCWrapper TheHMC;
+
+  // Grid from the command line
+  GridModule ScalarGrid;
+  ScalarGrid.set_full( SpaceTimeGrid::makeFourDimGrid(
+        GridDefaultLatt(), GridDefaultSimd(Nd, vComplex::Nsimd()),
+        GridDefaultMpi()));
+  ScalarGrid.set_rb(SpaceTimeGrid::makeFourDimRedBlackGrid(ScalarGrid.get_full()));
+  TheHMC.Resources.AddGrid("scalar", ScalarGrid);
+  // Possibile to create the module by hand
+  // hardcoding parameters or using a Reader
+
+  // Checkpointer definition
+  CheckpointerParameters CPparams;
+  CPparams.config_prefix = "ckpoint_scalar_lat";
+  CPparams.rng_prefix = "ckpoint_scalar_rng";
+  CPparams.saveInterval = 50;
+  CPparams.format = "IEEE64BIG";
+
+  TheHMC.Resources.LoadBinaryCheckpointer(CPparams);
+
+  RNGModuleParameters RNGpar;
+  RNGpar.serial_seeds = "1 2 3 4 5";
+  RNGpar.parallel_seeds = "6 7 8 9 10";
+  TheHMC.Resources.SetRNGSeeds(RNGpar);
+  /////////////////////////////////////////////////////////////
+  // Collect actions, here use more encapsulation
+
+  // Scalar action in adjoint representation
+  ScalarActionParameters SPar;
+  SPar.mass_squared = 0.5;
+  SPar.lambda       = 0.1;
+  ScalarAdjActionR Saction(SPar.mass_squared, SPar.lambda);
+
+  // Collect actions
+  ActionLevel<ScalarAdjActionR::Field, ScalarMatrixFields> Level1(1);
+  Level1.push_back(&Saction);
+  TheHMC.TheAction.push_back(Level1);
+  /////////////////////////////////////////////////////////////
+
+  // HMC parameters are serialisable
+  TheHMC.Parameters.MD.MDsteps = 10;
+  TheHMC.Parameters.MD.trajL   = 1.0;
+
+  TheHMC.ReadCommandLine(argc, argv);
+  TheHMC.Run();
+
+  Grid_finalize();
+
+} // main