biasing/B02/exampleB02.cc

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0025 //
0026 /// \file exampleB02.cc
0027 /// \brief Main program of the biasing/B02 example
0028
0029 // --------------------------------------------------------------
0030 //      GEANT 4 - exampleB02
0031 //
0032 // --------------------------------------------------------------
0033 // Comments
0034 //
0035 // This example intends to show how to use importance sampling and scoring
0036 // in the mass (tracking) geometry.
0037 // A simple geometry consisting of a 180 cm high concrete cylinder
0038 // divided into 18 slabs of 10cm each is created.
0039 // Importance values are assigned to the 18 concrete slabs in the
0040 // detector construction class for simplicity.
0041 // Pairs of G4GeometryCell and importance values are stored in
0042 // the importance store.
0043 //
0044
0045 // --------------------------------------------------------------
0046
0047 #include "G4GeometryManager.hh"
0048 #include "G4RunManagerFactory.hh"
0049 #include "G4Types.hh"
0050 #include "G4UImanager.hh"
0051 #include "G4VPhysicalVolume.hh"
0052
0053 #include <iostream>
0054 #include <stdlib.h>
0055
0056 // user classes
0057 #include "B02ActionInitialization.hh"
0058 #include "B02DetectorConstruction.hh"
0059 #include "B02ImportanceDetectorConstruction.hh"
0060 #include "FTFP_BERT.hh"
0061
0062 #include "G4ImportanceBiasing.hh"
0063 #include "G4ParallelWorldPhysics.hh"
0064 // #include "B02PrimaryGeneratorAction.hh"
0065 // #include "B02RunAction.hh"
0066
0067 // Files specific for biasing and scoring
0068 #include "G4GeometrySampler.hh"
0069 #include "G4IStore.hh"
0070 #include "G4VWeightWindowStore.hh"
0071 #include "G4WeightWindowAlgorithm.hh"
0072
0073 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0074
0075 int main(int argc, char** argv)
0076 {
0077   G4int mode = 0;
0078   if (argc > 1) mode = atoi(argv[1]);
0079   if (mode != 0) {
0080     G4cout << " mode not used yet, refer to B01 to see WeightWindow technique " << mode << G4endl;
0081   }
0082
0083   G4int numberOfEvents = 100;
0084   G4long myseed = 345354;
0085
0086   auto* runManager = G4RunManagerFactory::CreateRunManager();
0087   runManager->SetNumberOfThreads(2);
0088
0089   G4Random::setTheSeed(myseed);
0090
0091   // create the detector      ---------------------------
0092   B02DetectorConstruction* detector = new B02DetectorConstruction();
0093   runManager->SetUserInitialization(detector);
0094
0095   G4String parallelName("ParallelBiasingWorld");
0096   B02ImportanceDetectorConstruction* pdet = new B02ImportanceDetectorConstruction(parallelName);
0097   detector->RegisterParallelWorld(pdet);
0098
0099   G4GeometrySampler pgs(pdet->GetWorldVolume(), "neutron");
0100
0101   pgs.SetParallel(true);
0102
0103   G4VModularPhysicsList* physicsList = new FTFP_BERT;
0104   physicsList->RegisterPhysics(new G4ImportanceBiasing(&pgs, parallelName));
0105   physicsList->RegisterPhysics(new G4ParallelWorldPhysics(parallelName));
0106
0107   runManager->SetUserInitialization(physicsList);
0108
0109   // Set user action classes through Worker Initialization
0110   //
0111   B02ActionInitialization* actions = new B02ActionInitialization;
0112   runManager->SetUserInitialization(actions);
0113
0114   runManager->Initialize();
0115
0116   pdet->CreateImportanceStore();
0117
0118   // temporary fix before runManager->BeamOn works...
0119   G4UImanager* UImanager = G4UImanager::GetUIpointer();
0120   G4String command1 = "/control/cout/setCoutFile threadOut";
0121   UImanager->ApplyCommand(command1);
0122   G4String command2 = "/run/beamOn " + G4UIcommand::ConvertToString(numberOfEvents);
0123   UImanager->ApplyCommand(command2);
0124
0125   // open geometry for clean biasing stores clean-up
0126   //
0127   G4GeometryManager::GetInstance()->OpenGeometry();
0128
0129   // pgs.ClearSampling();
0130
0131   delete runManager;
0132
0133   return 0;
0134 }
0135
0136 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......