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1 //
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25 //
26 /// \file parallel/ThreadsafeScorers/ts_scorers.cc
27 /// \brief Main of the ThreadsafeScorers example
28 //
29 //
30 //
31 //
32 /// ts_scorers example shows how to use global scorers. The benefit of using
33 /// global scorers in memory-savings for problems with very large amounts
34 /// of scoring volumes. Additionally, the global scorers are more precise
35 /// w.r.t. the serial solution because of the lack of compounding
36 /// round-off error from multiple threads
37 ///
38 /// In this example, the global scorers are implemented as static member
39 /// variables in TSRun because TSRun is thread-local. The G4atomic
40 /// class is the core of the thread-safe scorers and can be uses
41 //
42 //
43 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
44 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
45
46 #include "G4RunManagerFactory.hh"
47 #include "G4Threading.hh"
48 #include "G4Types.hh"
49 #include "Randomize.hh"
50
51 // User Defined Classes
52 #include "TSActionInitialization.hh"
53 #include "TSDetectorConstruction.hh"
54 #include "TSPhysicsList.hh"
55
56 #include "G4Step.hh"
57 #include "G4Track.hh"
58 #include "G4UIExecutive.hh"
59 #include "G4UImanager.hh"
60 #include "G4VisExecutive.hh"
61
62 // for std::system(const char*)
63 #include <cstdlib>
64
65 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
66
67 void message(G4RunManager* runmanager)
68 {
69 G4MTRunManager* man = dynamic_cast<G4MTRunManager*>(runmanager);
70 if (man) {
71 man->SetNumberOfThreads(G4Threading::G4GetNumberOfCores());
72 G4cout << "\n\n\t--> Running in multithreaded mode with " << man->GetNumberOfThreads()
73 << " threads\n\n"
74 << G4endl;
75 }
76 else {
77 G4cout << "\n\n\t--> Running in serial mode\n\n" << G4endl;
78 }
79 }
80
81 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
82
83 int main(int argc, char** argv)
84 {
85 G4String macro;
86 if (argc > 1) macro = argv[argc - 1];
87
88 // Detect interactive mode (if no arguments) and define UI session
89 //
90 G4UIExecutive* ui = 0;
91 if (macro.empty()) ui = new G4UIExecutive(argc, argv);
92
93 // Set the random seed
94 CLHEP::HepRandom::setTheSeed(1245214UL);
95
96 G4RunManager* runmanager = G4RunManagerFactory::CreateRunManager(G4RunManagerType::Tasking);
97
98 message(runmanager);
99
100 runmanager->SetUserInitialization(new TSDetectorConstruction);
101
102 runmanager->SetUserInitialization(new TSPhysicsList);
103
104 runmanager->SetUserInitialization(new TSActionInitialization);
105
106 runmanager->Initialize();
107
108 // Initialize visualization
109 //
110 G4VisManager* visManager = new G4VisExecutive;
111 // G4VisExecutive can take a verbosity argument - see /vis/verbose guidance.
112 // G4VisManager* visManager = new G4VisExecutive("Quiet");
113 visManager->Initialize();
114
115 // Get the pointer to the User Interface manager
116 G4UImanager* UImanager = G4UImanager::GetUIpointer();
117
118 // Process macro or start UI session
119 //
120 if (!ui) {
121 // batch mode
122 G4String command = "/control/execute ";
123 UImanager->ApplyCommand(command + macro);
124 }
125 else {
126 ui->SessionStart();
127 }
128
129 // Job termination
130 // Free the store: user actions, physics_list and detector_description are
131 // owned and deleted by the run manager, so they should not be deleted
132 // in the main() program !
133 delete visManager;
134 delete runmanager;
135
136 return 0;
137 }
138