/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: ./tests/Test_hmc_WilsonFermionGauge.cc
Copyright (C) 2015
Author: Peter Boyle <pabobyle@ph.ed.ac.uk>
Author: neo <cossu@post.kek.jp>
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>
#undef USE_OBC
#define DO_IMPLICIT
int main(int argc, char **argv)
{
using namespace Grid;
Grid_init(&argc, &argv);
GridLogLayout();
std::string arg;
HMCparameters HMCparams;
#if 1
{
XmlReader HMCrd("HMCparameters.xml");
read(HMCrd,"HMCparameters",HMCparams);
}
#else
//IntegratorParameters MD;
std::vector<int> steps(0);
if( GridCmdOptionExists(argv,argv+argc,"--MDsteps") ){
arg= GridCmdOptionPayload(argv,argv+argc,"--MDsteps");
GridCmdOptionIntVector(arg,steps);
assert(steps.size()==1);
}
MD.trajL = 0.001*std::sqrt(2.);
MD.MDsteps = 1;
if (steps.size()>0) MD.MDsteps = steps[0];
if( GridCmdOptionExists(argv,argv+argc,"--trajL") ){
arg= GridCmdOptionPayload(argv,argv+argc,"--trajL");
std::vector<int> traj(0);
GridCmdOptionIntVector(arg,traj);
assert(traj.size()==1);
MD.trajL *= double(traj[0]);
}
MD.RMHMCTol=1e-8;
MD.RMHMCCGTol=1e-8;
std::cout << "RMHMCTol= "<< MD.RMHMCTol<<" RMHMCCGTol= "<<MD.RMHMCCGTol<<std::endl;
HMCparameters HMCparams;
HMCparams.StartTrajectory = 0;
HMCparams.Trajectories = 1;
HMCparams.NoMetropolisUntil= 100;
// "[HotStart, ColdStart, TepidStart, CheckpointStart]\n";
HMCparams.StartingType =std::string("ColdStart");
HMCparams.Kappa=0.01; //checking against trivial. Pathetic.
HMCparams.MD = MD;
#endif
// Typedefs to simplify notation
#ifdef DO_IMPLICIT
typedef GenericHMCRunner<ImplicitMinimumNorm2> HMCWrapper; // Uses the default minimum norm
// typedef GenericHMCRunner<ImplicitCampostrini> HMCWrapper; // 4th order
HMCparams.MD.name = std::string("ImplicitMinimumNorm2");
#else
typedef GenericHMCRunner<MinimumNorm2> HMCWrapper; // Uses the default minimum norm
HMCparams.MD.name = std::string("MinimumNorm2");
#endif
// Possibile to create the module by hand
// hardcoding parameters or using a Reader
// Checkpointer definition
CheckpointerParameters CPparams;
CPparams.config_prefix = "ckpoint_lat";
CPparams.rng_prefix = "ckpoint_rng";
CPparams.saveInterval = 1;
CPparams.format = "IEEE64BIG";
HMCWrapper TheHMC(HMCparams);
// Grid from the command line
TheHMC.Resources.AddFourDimGrid("gauge");
TheHMC.Resources.LoadNerscCheckpointer(CPparams);
RNGModuleParameters RNGpar;
RNGpar.serial_seeds = "1 2 3 4 5";
RNGpar.parallel_seeds = "6 7 8 9 10";
TheHMC.Resources.SetRNGSeeds(RNGpar);
// Construct observables
// here there is too much indirection
typedef PlaquetteMod<HMCWrapper::ImplPolicy> PlaqObs;
typedef TopologicalChargeMod<HMCWrapper::ImplPolicy> QObs;
TheHMC.Resources.AddObservable<PlaqObs>();
TopologyObsParameters TopParams;
TopParams.interval = 1;
TopParams.do_smearing = true;
// TopParams.Smearing.steps = 1600;
// TopParams.Smearing.step_size = 0.01;
TopParams.Smearing.init_step_size = 0.01;
TopParams.Smearing.meas_interval = 10;
TopParams.Smearing.maxTau = 16.0;
// TheHMC.Resources.AddObservable<QObs>(TopParams);
//////////////////////////////////////////////
/////////////////////////////////////////////////////////////
// Collect actions, here use more encapsulation
// need wrappers of the fermionic classes
// that have a complex construction
// standard
RealD beta = 6.6;
std::cout << "Wilson Gauge beta= " <<beta <<std::endl;
#ifndef USE_OBC
WilsonGaugeActionR Waction(beta);
#else
std::vector<Complex> boundaryG = {1,1,1,0};
WilsonGaugeActionR::ImplParams ParamsG(boundaryG);
WilsonGaugeActionR Waction(beta,ParamsG);
std::cout << "boundaryG = " <<boundaryG <<std::endl;
#endif
ActionLevel<HMCWrapper::Field> Level1(1);
Level1.push_back(&Waction);
TheHMC.TheAction.push_back(Level1);
TheHMC.ReadCommandLine(argc, argv); // these can be parameters from file
std::cout << "trajL= " <<TheHMC.Parameters.MD.trajL <<" steps= "<<TheHMC.Parameters.MD.MDsteps << " integrator= "<<TheHMC.Parameters.MD.name<<std::endl;
NoSmearing<HMCWrapper::ImplPolicy> S;
#ifndef DO_IMPLICIT
TrivialMetric<HMCWrapper::ImplPolicy::Field> Mtr;
#else
// g_x3_2
LaplacianRatParams gpar(2),mpar(2);
gpar.offset = 1.;
gpar.a0[0] = 500.;
gpar.a1[0] = 0.;
gpar.b0[0] = 0.25;
gpar.b1[0] = 1.;
gpar.a0[1] = -500.;
gpar.a1[1] = 0.;
gpar.b0[1] = 0.36;
gpar.b1[1] = 1.2;
gpar.b2=1.;
mpar.offset = 1.;
mpar.a0[0] = -0.850891906532;
mpar.a1[0] = -1.54707654538;
mpar. b0[0] = 2.85557166137;
mpar. b1[0] = 5.74194794773;
mpar.a0[1] = -13.5120056831218384729709214298;
mpar.a1[1] = 1.54707654538396877086370295729;
mpar.b0[1] = 19.2921090880640520026645390317;
mpar.b1[1] = -3.54194794773029020262811172870;
mpar.b2=1.;
for(int i=0;i<2;i++){
gpar.a1[i] *=16.;
gpar.b1[i] *=16.;
mpar.a1[i] *=16.;
mpar.b1[i] *=16.;
}
gpar.b2 *= 16.*16.;
mpar.b2 *= 16.*16.;
ConjugateGradient<LatticeGaugeField> CG(1.0e-8,10000);
LaplacianParams LapPar(0.0001, 1.0, 10000, 1e-8, 12, 64);
std::cout << GridLogMessage << "LaplacianRat " << std::endl;
gpar.tolerance=HMCparams.MD.RMHMCCGTol;
mpar.tolerance=HMCparams.MD.RMHMCCGTol;
std::cout << GridLogMessage << "gpar offset= " << gpar.offset <<std::endl;
std::cout << GridLogMessage << " a0= " << gpar.a0 <<std::endl;
std::cout << GridLogMessage << " a1= " << gpar.a1 <<std::endl;
std::cout << GridLogMessage << " b0= " << gpar.b0 <<std::endl;
std::cout << GridLogMessage << " b1= " << gpar.b1 <<std::endl;
std::cout << GridLogMessage << " b2= " << gpar.b2 <<std::endl ;;
std::cout << GridLogMessage << "mpar offset= " << mpar.offset <<std::endl;
std::cout << GridLogMessage << " a0= " << mpar.a0 <<std::endl;
std::cout << GridLogMessage << " a1= " << mpar.a1 <<std::endl;
std::cout << GridLogMessage << " b0= " << mpar.b0 <<std::endl;
std::cout << GridLogMessage << " b1= " << mpar.b1 <<std::endl;
std::cout << GridLogMessage << " b2= " << mpar.b2 <<std::endl;
// Assumes PeriodicGimplR or D at the moment
Coordinate latt = GridDefaultLatt();
Coordinate mpi = GridDefaultMpi();
auto UGrid = TheHMC.Resources.GetCartesian("gauge");
Coordinate simdF = GridDefaultSimd(Nd,vComplexF::Nsimd());
auto UGrid_f = SpaceTimeGrid::makeFourDimGrid(latt,simdF,mpi);
std::cout << GridLogMessage << " UGrid= " << UGrid <<std::endl;
std::cout << GridLogMessage << " UGrid_f= " << UGrid_f <<std::endl;
LaplacianAdjointRat<HMCWrapper::ImplPolicy, PeriodicGimplF> Mtr(UGrid, UGrid_f,CG, gpar, mpar);
#endif
{
XmlWriter HMCwr("HMCparameters.xml.out");
write(HMCwr,"HMCparameters",TheHMC.Parameters);
}
TheHMC.Run(S,Mtr); // no smearing
Grid_finalize();
} // main