hadronic/Hadr00/Hadr00.cc

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0025 //
0026 /// \file hadronic/Hadr00/Hadr00.cc
0027 /// \brief Main program of the hadronic/Hadr00 example
0028 //
0029 //
0030 //
0031 // -------------------------------------------------------------
0032 //      GEANT4 Hadr00
0033 //
0034 //  Application demonstrating Geant4 hadronic cross sections
0035 //
0036 //  Author: V.Ivanchenko 20 June 2008
0037 //
0038 //  Modified:
0039 //
0040 // -------------------------------------------------------------
0041 //
0042 //
0043 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0044 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0045
0046 #include "ActionInitialization.hh"
0047 #include "DetectorConstruction.hh"
0048 #include "PrimaryGeneratorAction.hh"
0049
0050 #include "G4PhysListFactory.hh"
0051 #include "G4RunManagerFactory.hh"
0052 #include "G4UIExecutive.hh"
0053 #include "G4UImanager.hh"
0054 #include "G4VModularPhysicsList.hh"
0055 #include "G4VisExecutive.hh"
0056 #include "Randomize.hh"
0057
0058 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0059
0060 int main(int argc, char** argv)
0061 {
0062   // detect interactive mode (if no arguments) and define UI session
0063   G4UIExecutive* ui = nullptr;
0064   if (argc == 1) {
0065     ui = new G4UIExecutive(argc, argv);
0066   }
0067
0068   auto* runManager = G4RunManagerFactory::CreateRunManager();
0069
0070   // Number of threads can be defined via 3rd argument
0071   if (argc == 4) {
0072     G4int nThreads = G4UIcommand::ConvertToInt(argv[3]);
0073     runManager->SetNumberOfThreads(nThreads);
0074   }
0075   G4cout << "##### Hadr00 started for " << runManager->GetNumberOfThreads() << " threads"
0076          << " #####" << G4endl;
0077
0078   // set mandatory initialization classes
0079   DetectorConstruction* det = new DetectorConstruction();
0080   runManager->SetUserInitialization(det);
0081
0082   G4PhysListFactory factory;
0083   G4VModularPhysicsList* phys = nullptr;
0084   G4String physName = "";
0085
0086   // Physics List name defined via 3nd argument
0087   if (argc >= 3) {
0088     physName = argv[2];
0089   }
0090
0091   // Physics List is defined via environment variable PHYSLIST
0092   if ("" == physName) {
0093     char* path = std::getenv("PHYSLIST");
0094     if (path) {
0095       physName = G4String(path);
0096     }
0097   }
0098
0099   // if name is not known to the factory use FTFP_BERT
0100   if ("" == physName || !factory.IsReferencePhysList(physName)) {
0101     physName = "FTFP_BERT";
0102   }
0103
0104   // reference PhysicsList via its name
0105   phys = factory.GetReferencePhysList(physName);
0106
0107   runManager->SetUserInitialization(phys);
0108   det->SetPhysicsList(phys);
0109
0110   // set user action classes
0111   runManager->SetUserInitialization(new ActionInitialization(det));
0112
0113   // initialize visualization
0114   G4VisManager* visManager = nullptr;
0115
0116   // get the pointer to the User Interface manager
0117   G4UImanager* UImanager = G4UImanager::GetUIpointer();
0118
0119   if (ui) {
0120     // interactive mode
0121     visManager = new G4VisExecutive;
0122     visManager->Initialize();
0123     ui->SessionStart();
0124     delete ui;
0125   }
0126   else {
0127     // batch mode
0128     G4String command = "/control/execute ";
0129     G4String fileName = argv[1];
0130     UImanager->ApplyCommand(command + fileName);
0131   }
0132
0133   // job termination
0134   delete visManager;
0135   delete runManager;
0136 }
0137
0138 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......