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/// \file electromagnetic/TestEm8/TestEm8.cc
/// \brief Main program of the electromagnetic/TestEm8 example
//
// $Id: TestEm8.cc 106960 2017-10-31 08:35:19Z 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"

#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
  CLHEP::HepRandom::setTheEngine(new CLHEP::MixMaxRng);
  
#ifdef G4MULTITHREADED
  G4MTRunManager* runManager = new G4MTRunManager;
  // Number of threads can be defined via 3rd argument
  G4int nThreads = 2;
  if (argc==3) {
    if(G4String(argv[2]) == "NMAX") { 
      nThreads = G4Threading::G4GetNumberOfCores();
    } else {
      nThreads = G4UIcommand::ConvertToInt(argv[2]);
    } 
  } else if(argc==1) { 
    nThreads = 1;
  }
  if (nThreads > 0) { runManager->SetNumberOfThreads(nThreads); }
  G4cout << "===== TestEm8 is started with " 
         <<  runManager->GetNumberOfThreads() << " threads =====" << G4endl;
#else
  G4RunManager* runManager = new G4RunManager;
#endif

  // set mandatory initialization classes
  DetectorConstruction* det = new DetectorConstruction();
  runManager->SetUserInitialization(det);
  runManager->SetUserInitialization(new PhysicsList(det));
 
  // set user action classes
  runManager->SetUserInitialization(new ActionInitialization());
  
  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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