DD4hep Developers Meeting

Thursday 6 May 2021, 15:30 → 17:00 Europe/Zurich

2/1-034 (CERN)

Marko Petric (CERN)

Please Join DD4hep developer's meeting via Zoom

 

A. Sailer, C. Vuosalo, F. Gaede, I. Osborne, M. Petric, M. Frank, T. Madlener, V. Voelkl

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) CMS problem with subtraction - cause not confirmed. Needs further investigation

2)    Closed issues and fixed problems
2.1) Output of shapes in as CAD files (issue #813).
2.2) Significant memory increase of GeoHandler from v01-15 #820

3) Round table
   Markus:     See above
   Ianna:        -
   Carl:          - Need fix to Geant4AssemblyVolume.
                     - Somehow unstable results from simulation.
                       In ~ 10 % of the cases results are not bit-wise identical.
                     - PowerPC builds are particularly sensitive to exceptions and SEGVs.
                       Difficult to debug.
   Andre:       A lot of user support. Some fixes to DDSim to allow for user supported
                     physics constructors.
   Marko:      Merged beginners manual merged.
   Thomas:     -
   Valentin:    -
   Frank:        -

4) AOB

Next meeting in 3 weeks: 27/05/2021

15:30 → 15:50 CHEP comments

74.rtf

DD4hepCHEP2021-mod.pdf