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/// \file electromagnetic/TestEm2/TestEm2.cc
/// \brief Main program of the electromagnetic/TestEm2 example
//
//
// $Id: TestEm2.cc 84840 2014-10-21 13:46:12Z gcosmo $
//
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#include "G4RunManager.hh"
#include "G4MTRunManager.hh"
#include "G4UImanager.hh"
#include "G4UIcommand.hh"
#include "Randomize.hh"

#include "DetectorConstruction.hh"
#include "PhysicsList.hh"
#include "ActionInitialization.hh"
#include "SteppingVerbose.hh"

#ifdef G4VIS_USE
#include "G4VisExecutive.hh"
#endif

#ifdef G4UI_USE
#include "G4UIExecutive.hh"
#endif

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int main(int argc,char** argv) {

  //choose the Random engine
  G4Random::setTheEngine(new CLHEP::RanecuEngine);

#ifdef G4MULTITHREADED  
  G4MTRunManager * runManager = new G4MTRunManager();
  G4int nThreads = G4Threading::G4GetNumberOfCores();
  if (argc==3) nThreads = G4UIcommand::ConvertToInt(argv[2]);
  runManager->SetNumberOfThreads(nThreads);
#else
  G4VSteppingVerbose::SetInstance(new SteppingVerbose);
  G4RunManager * runManager = new G4RunManager(); 
#endif

  // set mandatory initialization classes
  DetectorConstruction* detector = new DetectorConstruction();
  runManager->SetUserInitialization(detector);
  runManager->SetUserInitialization(new PhysicsList());

  // set user actions
  runManager->SetUserInitialization(new ActionInitialization(detector));

  // get the pointer to the User Interface manager 
  G4UImanager* UI = G4UImanager::GetUIpointer();  

  if (argc!=1)   // batch mode
    {
      G4String command = "/control/execute ";
      G4String fileName = argv[1];
      UI->ApplyCommand(command+fileName);
    }
    
  else  // define visualization and UI terminal for interactive mode
    { 
#ifdef G4VIS_USE
     G4VisManager* visManager = new G4VisExecutive;
     visManager->Initialize();
#endif
                      
#ifdef G4UI_USE
      G4UIExecutive * ui = new G4UIExecutive(argc,argv);      
      ui->SessionStart();
      delete ui;
#endif
      
#ifdef G4VIS_USE
      delete visManager;
#endif            
    }

  // job termination
  //
  delete runManager;
  return 0;
}

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