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114 lines
3.3 KiB
C++
114 lines
3.3 KiB
C++
#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 NerscHmcRunner {
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public:
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enum StartType_t { ColdStart, HotStart, TepidStart, CheckpointStart };
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ActionSet<LatticeGaugeField> 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;
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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" ) { StartType = HotStart; }
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else if ( arg == "ColdStart" ) { StartType = ColdStart; }
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else if ( arg == "TepidStart" ) { StartType = TepidStart; }
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else if ( arg == "CheckpointStart" ) { StartType = CheckpointStart; }
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else assert(0);
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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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// Create integrator
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typedef MinimumNorm2<LatticeGaugeField> IntegratorType;// change here to change the algorithm
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IntegratorParameters MDpar(20);
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IntegratorType MDynamics(UGrid,MDpar, TheAction);
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// Checkpoint strategy
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NerscHmcCheckpointer<LatticeGaugeField> Checkpoint(std::string("ckpoint_lat"),std::string("ckpoint_rng"),1);
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PlaquetteLogger<LatticeGaugeField> 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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GridSerialRNG sRNG;
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GridParallelRNG pRNG(UGrid);
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LatticeGaugeField U(UGrid);
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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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if ( StartType == HotStart ) {
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// Hot start
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HMCpar.NoMetropolisUntil =0;
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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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SU3::HotConfiguration(pRNG, U);
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} else if ( StartType == ColdStart ) {
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// Cold start
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HMCpar.NoMetropolisUntil =0;
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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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SU3::ColdConfiguration(pRNG, U);
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} else if ( StartType == TepidStart ) {
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// Tepid start
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HMCpar.NoMetropolisUntil =0;
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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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SU3::TepidConfiguration(pRNG, U);
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} else if ( StartType == CheckpointStart ) {
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HMCpar.NoMetropolisUntil =0;
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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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HybridMonteCarlo<LatticeGaugeField,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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}}
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#endif
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