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Cleaning up files and directories
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Guido Cossu
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/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: ./lib/qcd/hmc/HmcRunner.h
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Copyright (C) 2015
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Author: paboyle <paboyle@ph.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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#ifndef HMC_RUNNER
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#define HMC_RUNNER
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namespace Grid {
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namespace QCD {
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// Class for HMC specific for gauge theories
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template <class Gimpl, class RepresentationsPolicy = NoHirep >
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class NerscHmcRunnerTemplate {
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public:
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INHERIT_GIMPL_TYPES(Gimpl);
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enum StartType_t { ColdStart, HotStart, TepidStart, CheckpointStart };
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ActionSet<GaugeField, RepresentationsPolicy> TheAction;
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GridCartesian *UGrid;
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GridCartesian *FGrid;
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GridRedBlackCartesian *UrbGrid;
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GridRedBlackCartesian *FrbGrid;
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virtual void BuildTheAction(int argc, char **argv) = 0; // necessary?
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void Run(int argc, char **argv) {
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StartType_t StartType = HotStart;
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std::string arg;
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if (GridCmdOptionExists(argv, argv + argc, "--StartType")) {
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arg = GridCmdOptionPayload(argv, argv + argc, "--StartType");
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if (arg == "HotStart") {
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StartType = HotStart;
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} else if (arg == "ColdStart") {
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StartType = ColdStart;
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} else if (arg == "TepidStart") {
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StartType = TepidStart;
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} else if (arg == "CheckpointStart") {
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StartType = CheckpointStart;
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} else {
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std::cout << GridLogError << "Unrecognized option in --StartType\n";
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std::cout << GridLogError << "Valid [HotStart, ColdStart, TepidStart, CheckpointStart]\n";
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assert(0);
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}
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}
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int StartTraj = 0;
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if (GridCmdOptionExists(argv, argv + argc, "--StartTrajectory")) {
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arg = GridCmdOptionPayload(argv, argv + argc, "--StartTrajectory");
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std::vector<int> ivec(0);
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GridCmdOptionIntVector(arg, ivec);
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StartTraj = ivec[0];
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}
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int NumTraj = 1;
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if (GridCmdOptionExists(argv, argv + argc, "--Trajectories")) {
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arg = GridCmdOptionPayload(argv, argv + argc, "--Trajectories");
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std::vector<int> ivec(0);
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GridCmdOptionIntVector(arg, ivec);
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NumTraj = ivec[0];
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}
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int NumThermalizations = 10;
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if (GridCmdOptionExists(argv, argv + argc, "--Thermalizations")) {
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arg = GridCmdOptionPayload(argv, argv + argc, "--Thermalizations");
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std::vector<int> ivec(0);
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GridCmdOptionIntVector(arg, ivec);
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NumThermalizations = ivec[0];
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}
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GridSerialRNG sRNG;
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GridParallelRNG pRNG(UGrid);
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LatticeGaugeField U(UGrid); // change this to an extended field (smearing class)?
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std::vector<int> SerSeed({1, 2, 3, 4, 5});
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std::vector<int> ParSeed({6, 7, 8, 9, 10});
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// Create integrator, including the smearing policy
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// Smearing policy, only defined for Nc=3
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/*
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std::cout << GridLogDebug << " Creating the Stout class\n";
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double rho = 0.1; // smearing parameter, now hardcoded
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int Nsmear = 1; // number of smearing levels
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Smear_Stout<Gimpl> Stout(rho);
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std::cout << GridLogDebug << " Creating the SmearedConfiguration class\n";
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//SmearedConfiguration<Gimpl> SmearingPolicy(UGrid, Nsmear, Stout);
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std::cout << GridLogDebug << " done\n";
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*/
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//////////////
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NoSmearing<Gimpl> SmearingPolicy;
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typedef MinimumNorm2<Gimpl, NoSmearing<Gimpl>, RepresentationsPolicy >
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IntegratorType; // change here to change the algorithm
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IntegratorParameters MDpar(40, 1.0);
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IntegratorType MDynamics(UGrid, MDpar, TheAction, SmearingPolicy);
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// Checkpoint strategy
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NerscHmcCheckpointer<Gimpl> Checkpoint(std::string("ckpoint_lat"),
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std::string("ckpoint_rng"), 1);
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PlaquetteLogger<Gimpl> PlaqLog(std::string("plaq"));
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HMCparameters HMCpar;
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HMCpar.StartTrajectory = StartTraj;
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HMCpar.Trajectories = NumTraj;
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HMCpar.NoMetropolisUntil = NumThermalizations;
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if (StartType == HotStart) {
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// Hot start
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HMCpar.MetropolisTest = true;
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sRNG.SeedFixedIntegers(SerSeed);
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pRNG.SeedFixedIntegers(ParSeed);
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SU<Nc>::HotConfiguration(pRNG, U);
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} else if (StartType == ColdStart) {
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// Cold start
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HMCpar.MetropolisTest = true;
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sRNG.SeedFixedIntegers(SerSeed);
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pRNG.SeedFixedIntegers(ParSeed);
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SU<Nc>::ColdConfiguration(pRNG, U);
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} else if (StartType == TepidStart) {
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// Tepid start
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HMCpar.MetropolisTest = true;
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sRNG.SeedFixedIntegers(SerSeed);
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pRNG.SeedFixedIntegers(ParSeed);
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SU<Nc>::TepidConfiguration(pRNG, U);
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} else if (StartType == CheckpointStart) {
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HMCpar.MetropolisTest = true;
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// CheckpointRestart
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Checkpoint.CheckpointRestore(StartTraj, U, sRNG, pRNG);
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}
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// Attach the gauge field to the smearing Policy and create the fill the
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// smeared set
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// notice that the unit configuration is singular in this procedure
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std::cout << GridLogMessage << "Filling the smeared set\n";
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SmearingPolicy.set_Field(U);
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HybridMonteCarlo<IntegratorType> HMC(HMCpar, MDynamics, sRNG, pRNG, U);
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HMC.AddObservable(&Checkpoint);
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HMC.AddObservable(&PlaqLog);
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// Run it
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HMC.evolve();
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}
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};
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typedef NerscHmcRunnerTemplate<PeriodicGimplR> NerscHmcRunner;
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typedef NerscHmcRunnerTemplate<PeriodicGimplF> NerscHmcRunnerF;
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typedef NerscHmcRunnerTemplate<PeriodicGimplD> NerscHmcRunnerD;
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typedef NerscHmcRunnerTemplate<PeriodicGimplR> PeriodicNerscHmcRunner;
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typedef NerscHmcRunnerTemplate<PeriodicGimplF> PeriodicNerscHmcRunnerF;
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typedef NerscHmcRunnerTemplate<PeriodicGimplD> PeriodicNerscHmcRunnerD;
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typedef NerscHmcRunnerTemplate<ConjugateGimplR> ConjugateNerscHmcRunner;
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typedef NerscHmcRunnerTemplate<ConjugateGimplF> ConjugateNerscHmcRunnerF;
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typedef NerscHmcRunnerTemplate<ConjugateGimplD> ConjugateNerscHmcRunnerD;
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template <class RepresentationsPolicy>
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using NerscHmcRunnerHirep = NerscHmcRunnerTemplate<PeriodicGimplR, RepresentationsPolicy>;
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}
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}
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#endif
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