LArSoft  v09_90_00
Liquid Argon Software toolkit - https://larsoft.org/
exampleB02.cc
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32 // --------------------------------------------------------------
33 // GEANT 4 - exampleB02
34 //
35 // --------------------------------------------------------------
36 // Comments
37 //
38 // This example intends to show how to use importance sampling and scoring
39 // in the mass (tracking) geometry.
40 // A simple geometry consisting of a 180 cm high concrete cylinder
41 // divided into 18 slabs of 10cm each is created.
42 // Importance values are assigned to the 18 concrete slabs in the
43 // detector construction class for simplicity.
44 // Pairs of G4GeometryCell and importance values are stored in
45 // the importance store.
46 //
47 
48 // --------------------------------------------------------------
49 
50 #include <iostream>
51 
52 #include <stdlib.h>
53 
54 #include "G4Types.hh"
55 
56 #ifdef G4MULTITHREADED
57 #include "G4MTRunManager.hh"
58 #else
59 #include "G4RunManager.hh"
60 #endif
61 
62 #include "G4VPhysicalVolume.hh"
63 #include "G4UImanager.hh"
64 #include "G4GeometryManager.hh"
65 
66 // user classes
67 #include "B02DetectorConstruction.hh"
68 #include "B02ImportanceDetectorConstruction.hh"
69 #include "FTFP_BERT.hh"
70 #include "G4ImportanceBiasing.hh"
71 #include "G4ParallelWorldPhysics.hh"
72 
73 #include "B02ActionInitialization.hh"
74 // #include "B02PrimaryGeneratorAction.hh"
75 // #include "B02RunAction.hh"
76 
77 // Files specific for biasing and scoring
78 #include "G4GeometrySampler.hh"
79 #include "G4IStore.hh"
80 #include "G4VWeightWindowStore.hh"
81 #include "G4WeightWindowAlgorithm.hh"
82 
83 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
84 
85 int main(int argc, char **argv)
86 {
87  G4int mode = 0;
88  if (argc>1) mode = atoi(argv[1]);
89  if(mode != 0) {
90  G4cout << " mode not used yet, refer to B01 to see WeightWindow technique "
91  << mode << G4endl;
92  }
93 
94  G4int numberOfEvents = 100;
95  G4long myseed = 345354;
96 
97 #ifdef G4MULTITHREADED
98  G4MTRunManager * runManager = new G4MTRunManager;
99  G4cout << " Number of cores: " << G4Threading::G4GetNumberOfCores() << G4endl;
100  G4cout << " but using two! " << G4endl;
101  runManager->SetNumberOfThreads(2);
102  // runManager->SetNumberOfThreads(G4Threading::G4GetNumberOfCores());
103 #else
104  G4RunManager * runManager = new G4RunManager;
105 #endif
106 
107  G4Random::setTheSeed(myseed);
108 
109  // create the detector ---------------------------
110  B02DetectorConstruction* detector = new B02DetectorConstruction();
111  runManager->SetUserInitialization(detector);
112 
113  G4String parallelName("ParallelBiasingWorld");
114  B02ImportanceDetectorConstruction* pdet =
115  new B02ImportanceDetectorConstruction(parallelName);
116  detector->RegisterParallelWorld(pdet);
117 
118  G4GeometrySampler pgs(pdet->GetWorldVolume(),"neutron");
119 
120  pgs.SetParallel(true);
121 
122  G4VModularPhysicsList* physicsList = new FTFP_BERT;
123  physicsList->RegisterPhysics(new G4ImportanceBiasing(&pgs,parallelName));
124  physicsList->RegisterPhysics(new G4ParallelWorldPhysics(parallelName));
125 
126  runManager->SetUserInitialization(physicsList);
127 
128  // Set user action classes through Worker Initialization
129  //
130  B02ActionInitialization* actions = new B02ActionInitialization;
131  runManager->SetUserInitialization(actions);
132 
133  runManager->Initialize();
134 
135  pdet->CreateImportanceStore();
136 
137  //temporary fix before runManager->BeamOn works...
138  G4UImanager* UImanager = G4UImanager::GetUIpointer();
139  G4String command1 = "/control/cout/setCoutFile threadOut";
140  UImanager->ApplyCommand(command1);
141  G4String command2 = "/run/beamOn " +
142  G4UIcommand::ConvertToString(numberOfEvents);
143  UImanager->ApplyCommand(command2);
144 
145  // open geometry for clean biasing stores clean-up
146  //
147  G4GeometryManager::GetInstance()->OpenGeometry();
148 
149  // pgs.ClearSampling();
150 
151  delete runManager;
152 
153  return 0;
154 }
155 
156 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
int main(int argc, char **argv)
Definition: exampleB02.cc:85