support MT in magnetic field

AIDASoft · Mar 11, 2024 · dab2ced · dab2ced
1 parent 2d245c0
commit dab2ced
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/DDG4/python/DDSim/DD4hepSimulation.py b/DDG4/python/DDSim/DD4hepSimulation.py
@@ -533,7 +533,10 @@ def run(self):
 
   def __setMagneticFieldOptions(self, geant4):
     """ create and configure the magnetic tracking setup """
-    field = geant4.addConfig('Geant4FieldTrackingSetupAction/MagFieldTrackingSetup')
+    if self.numberOfThreads > 1:
+      seq, field = geant4.addDetectorConstruction("Geant4FieldTrackingConstruction/MagFieldTrackingSetup")
+    else:
+      field = geant4.addConfig('Geant4FieldTrackingSetupAction/MagFieldTrackingSetup')
     field.stepper = self.field.stepper
     field.equation = self.field.equation
     field.eps_min = self.field.eps_min