Geant4 11.1.1
Toolkit for the simulation of the passage of particles through matter
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G4FastSimulationHelper Class Reference

#include <G4FastSimulationHelper.hh>

Static Public Member Functions

static void ActivateFastSimulation (G4ProcessManager *pmanager, G4String parallelGeometryName="")
 

Detailed Description

Definition at line 52 of file G4FastSimulationHelper.hh.

Member Function Documentation

◆ ActivateFastSimulation()

void G4FastSimulationHelper::ActivateFastSimulation ( G4ProcessManager pmanager,
G4String  parallelGeometryName = "" 
)
static

Definition at line 31 of file G4FastSimulationHelper.cc.

32{
33 G4FastSimulationManagerProcess* fastSimProcess;
34 if ( parallelGeometryName.empty() ) {
35 fastSimProcess = new G4FastSimulationManagerProcess("fastSimProcess_massGeom");
36 // -- For the parametrisation envelope belonging to the mass geometry case, the G4FastSimulationManagerProcess
37 // -- is a PostStep process, and ordering does not matter:
38 pmanager-> AddDiscreteProcess(fastSimProcess);
39 }
40 else {
41 fastSimProcess = new G4FastSimulationManagerProcess("fastSimProcess_parallelGeom",parallelGeometryName);
42 // -- For the parallel geometry case, the G4FastSimulationManagerProcessz
43 // -- is an Along+PostStep process, and ordering matters:
44 pmanager->AddProcess(fastSimProcess);
45 pmanager->SetProcessOrdering(fastSimProcess, idxAlongStep, 1);
46 }
47 // If the parallel world
48 // exists (with parallel world physics), e.g. for the sensitive detector.
49 // In that case make sure fast simulation is the first process to be checked by the steppping manager
50 // (highest ordering) so that user can kill the particle and/or deposit energy, ignoring other processes.
51 // Otherwise the parallel world physics (which is a StronglyFroced process) will invoke a PostStepDoIt
52 // on the same step, leading to e.g. duplicated energy deposits.
53
54 // Register as the process with highest ordering so it is checked as the first one,
55 // and since it is exclusively forced no other process will be considered (to be invoked).
56 pmanager->SetProcessOrderingToLast(fastSimProcess, idxPostStep);
57}
@ idxPostStep
@ idxAlongStep
void SetProcessOrdering(G4VProcess *aProcess, G4ProcessVectorDoItIndex idDoIt, G4int ordDoIt=ordDefault)
G4int AddProcess(G4VProcess *aProcess, G4int ordAtRestDoIt=ordInActive, G4int ordAlongSteptDoIt=ordInActive, G4int ordPostStepDoIt=ordInActive)
void SetProcessOrderingToLast(G4VProcess *aProcess, G4ProcessVectorDoItIndex idDoIt)

Referenced by G4FastSimulationPhysics::ConstructProcess().


The documentation for this class was generated from the following files: