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G4BiasingHelper.cc
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25 //
26 #include "G4BiasingHelper.hh"
27 
28 #include "G4ProcessManager.hh"
31 
33  G4String physicsProcessToBias,
34  G4String wrappedName)
35 {
36  G4VProcess* physicsProcess(0);
37 
38  G4ProcessVector* vprocess = pmanager->GetProcessList();
39  for (std::size_t ip = 0 ; ip < vprocess->size() ; ++ip)
40  {
41  if ( (*vprocess)[ip]->GetProcessName() == physicsProcessToBias )
42  {
43  physicsProcess = (*vprocess)[ip];
44  break;
45  }
46  }
47 
48  // -- process not found, return "false" to tell about failure
49  if ( physicsProcess == 0 ) return false;
50 
51  // -- process is not a physics one, return "false" to tell about failure
52  G4int processType = physicsProcess->GetProcessType();
53  if ( ( processType != 2 ) && // EM
54  ( processType != 3 ) && // Optical
55  ( processType != 4 ) && // Hadronic
56  ( processType != 6 ) ) // Decay
57  return false;
58 
59  // -- prevent wrapper of wrapper...
60  if ( dynamic_cast< G4BiasingProcessInterface* >( physicsProcess ) ) return false;
61 
62  // -- remember process indeces:
63  G4int atRestIndex = pmanager->GetProcessOrdering(physicsProcess, idxAtRest );
64  G4int alongStepIndex = pmanager->GetProcessOrdering(physicsProcess, idxAlongStep);
65  G4int postStepIndex = pmanager->GetProcessOrdering(physicsProcess, idxPostStep );
66 
67  // -- now remove the physic process, that will be replaced by a wrapped version:
68  G4VProcess* removed = pmanager->RemoveProcess(physicsProcess);
69  if ( removed != physicsProcess )
70  {
72  ed << "Internal inconsistency in processes handling. Please report !" << G4endl;
73  G4Exception("G4BiasingHelper::ActivatePhysicsBiasing(...)",
74  "BIAS.GEN.01",
76  ed);
77  }
78 
79  G4BiasingProcessInterface* biasingWrapper = new G4BiasingProcessInterface( physicsProcess,
80  atRestIndex != ordInActive,
81  alongStepIndex != ordInActive,
82  postStepIndex != ordInActive,
83  wrappedName);
84 
85  if ( alongStepIndex == -1 ) alongStepIndex = ordDefault;
86 
87  pmanager->AddProcess( biasingWrapper,
88  atRestIndex,
89  alongStepIndex,
90  postStepIndex);
91 
92  return true;
93 }
94 
96  G4String nonPhysicsProcessName )
97 {
98  G4BiasingProcessInterface* biasingNonPhys(0);
99  if ( nonPhysicsProcessName == "" ) biasingNonPhys = new G4BiasingProcessInterface();
100  else biasingNonPhys = new G4BiasingProcessInterface(nonPhysicsProcessName );
101  pmanager->AddProcess( biasingNonPhys,
102  ordInActive,
103  ordInActive,
104  ordDefault);
105 }
106 
108 {
109  G4ParallelGeometriesLimiterProcess* toReturn = nullptr;
110 
111  G4ProcessVector* processList = pmanager->GetProcessList();
112  G4bool noInstance = true;
113  for (std::size_t i = 0 ; i < processList->size() ; ++i)
114  {
115  G4VProcess* process = (*processList)[i];
116  if ( dynamic_cast< G4ParallelGeometriesLimiterProcess* >( process ) )
117  {
118  noInstance = false;
119 
121  ed << "Trying to re-add a G4ParallelGeometriesLimiterProcess process to the process manager for '"<<
122  pmanager->GetParticleType()->GetParticleName() << " (PDG : " << pmanager->GetParticleType()->GetPDGEncoding() << " )"
123  << " while one is already present." << G4endl;
124  G4Exception("G4BiasingHelper::AddBiasingProcessLimiter(G4ProcessManager* pmanager)",
125  "BIAS.GEN.28",
126  JustWarning, ed,
127  "Call ignored.");
128  break;
129  }
130  }
131 
132  if ( noInstance )
133  {
135  pmanager->AddProcess ( biasingLimiter );
136  pmanager->SetProcessOrderingToSecond( biasingLimiter, idxAlongStep );
137  pmanager->SetProcessOrderingToLast ( biasingLimiter, idxPostStep );
138 
139  toReturn = biasingLimiter;
140  }
141 
142  return toReturn;
143 
144 }