DD4hep Developers Meeting



Andre Sailer (CERN), Markus Frank (CERN)

Please Join DD4hep developer's meeting via Zoom

DD4hep Developers Meeting
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Marko Petric
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Present:  M.Frank, A.Sailer, W.Deconic, C. Vuosalo, S.Joosten, F.Gaede

1) Pending problems

1.1) Pending problems reported by Sang Hyun Ko:
     - Cannot setup Birk's constant as material property.
     - No analogy to G4PVParametrized. Unclear if a solution is possible.
1.2) Add GFlash parameterisation to DDG4 (issue #802)
1.3) Problems with ROOT-python compatibilities (issue 842)
       ==> Waiting for Paul to provide a PR
1.4) DDG4: isotropic gun distribution also forces uniform momentum distribution #862
       ==> Waiting for Wouter to provide PR
1.5) std::terminate handling and Geant4 (CMS request)

       ==> Assigned to Markus
1.6) DD4POD: Waiting for PR from Whitney

1.7) Geant4 11.0 beta open issues between snapshot compilation
1.8  PluginFactoryBase::make_return problem with longs (Issue 875)

2)    Closed issues and fixed problems

3) Round table

3.1  Wouter:      DDG4 particle handler has SEGV. Problematic are "stable" particles which decay
       and are  given to Geant4. These are double-deleted and cause problems. The solution is to add
       these to the rejection list so that they are excluded from Geant4 processing.
3.2  Carl:          NTR
3.2  Andre:       some plugin problems still to be understood.
3.3  Sylvester:  NTR
3.4  Frank:       Interest in GFlash

4) AOB


Next meeting in 2 weeks    16.December 2021

There are minutes attached to this event. Show them.
    • 3:30 PM 3:50 PM
      Around the table 20m
      • EIC/Athena ParticleHandler Issue 20m
        Speakers: Wouter Deconinck, Wouter Deconinck