exampleB02.cc

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// $Id: exampleB02.cc 109717 2018-05-08 13:41:05Z gcosmo $
//
//
// --------------------------------------------------------------
//      GEANT 4 - exampleB02
//
// --------------------------------------------------------------
// Comments
//
// This example intends to show how to use importance sampling and scoring
// in the mass (tracking) geometry.
// A simple geometry consisting of a 180 cm high concrete cylinder
// divided into 18 slabs of 10cm each is created.
// Importance values are assigned to the 18 concrete slabs in the
// detector construction class for simplicity.
// Pairs of G4GeometryCell and importance values are stored in
// the importance store.
//

// --------------------------------------------------------------

#include <iostream>

#include <stdlib.h>

#include "G4Types.hh"

#ifdef G4MULTITHREADED
#include "G4MTRunManager.hh"
#else
#include "G4RunManager.hh"
#endif

#include "G4VPhysicalVolume.hh"
#include "G4UImanager.hh"
#include "G4GeometryManager.hh"

// user classes
#include "B02DetectorConstruction.hh"
#include "B02ImportanceDetectorConstruction.hh"
#include "FTFP_BERT.hh"
#include "G4ImportanceBiasing.hh"
#include "G4ParallelWorldPhysics.hh"

#include "B02ActionInitialization.hh"
// #include "B02PrimaryGeneratorAction.hh"
// #include "B02RunAction.hh"

// Files specific for biasing and scoring
#include "G4GeometrySampler.hh"
#include "G4IStore.hh"
#include "G4VWeightWindowStore.hh"
#include "G4WeightWindowAlgorithm.hh"

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......

int main(int argc, char **argv)
{
  G4int mode = 0;
  if (argc>1)  mode = atoi(argv[1]);
  if(mode != 0) {
    G4cout << " mode not used yet, refer to B01 to see WeightWindow technique "
           << mode << G4endl;
  }

  G4int numberOfEvents = 100;
  G4long myseed = 345354;

#ifdef G4MULTITHREADED
  G4MTRunManager * runManager = new G4MTRunManager;
  G4cout << " Number of cores: " << G4Threading::G4GetNumberOfCores() << G4endl;
  G4cout << " but using two! " << G4endl;
  runManager->SetNumberOfThreads(2);
  //  runManager->SetNumberOfThreads(G4Threading::G4GetNumberOfCores());
#else
  G4RunManager * runManager = new G4RunManager;
#endif

  G4Random::setTheSeed(myseed);

  // create the detector      ---------------------------
  B02DetectorConstruction* detector = new B02DetectorConstruction();
  runManager->SetUserInitialization(detector);

  G4String parallelName("ParallelBiasingWorld");
  B02ImportanceDetectorConstruction* pdet =
                   new B02ImportanceDetectorConstruction(parallelName);
  detector->RegisterParallelWorld(pdet);

  G4GeometrySampler pgs(pdet->GetWorldVolume(),"neutron");

  pgs.SetParallel(true);

  G4VModularPhysicsList* physicsList = new FTFP_BERT;
  physicsList->RegisterPhysics(new G4ImportanceBiasing(&pgs,parallelName));
  physicsList->RegisterPhysics(new G4ParallelWorldPhysics(parallelName));

  runManager->SetUserInitialization(physicsList);

 // Set user action classes through Worker Initialization
 //
  B02ActionInitialization* actions = new B02ActionInitialization;
  runManager->SetUserInitialization(actions);

  runManager->Initialize();

  pdet->CreateImportanceStore();

  //temporary fix before runManager->BeamOn works...
  G4UImanager* UImanager = G4UImanager::GetUIpointer();
  G4String command1 = "/control/cout/setCoutFile threadOut";
  UImanager->ApplyCommand(command1);
  G4String command2 = "/run/beamOn " +
                      G4UIcommand::ConvertToString(numberOfEvents);
  UImanager->ApplyCommand(command2);

  // open geometry for clean biasing stores clean-up
  //
  G4GeometryManager::GetInstance()->OpenGeometry();

  // pgs.ClearSampling();

  delete runManager;

  return 0;
}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......