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Please Join DD4hep developer's meeting via Zoom
Present: M. Frank, T. Madlehner, A. Sailer, C. Vuosalo
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) PluginFactoryBase::make_return problem with longs (Issue 875)
1.4) ROOT issue: for G4 units the radiation/interaction length is wrong by a factor 10
-- For CMS this problem does not show up.
-- Should only enter AFTER simulation (Geant4 materials do not have the radiation length as input)
-- Need to address this issue early next year.
1.5) DDDigi TBB code needs migration to new oneAPI TBB interfaces (Issue 901):
Clash between Intel oneapi TBB and classic TBB.
-- Wouter promised to look into.
1.6) Issue 909: ddsim gets stuck infinitely on some events (reported by T. Madlehner).
Infinite loop due to particle decaying to itself. This also may be a generator problem.
2) Closed issues and fixed problems
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2.1) Shadow warnings 905
2.1) Fix compilation instructions
(PR https://github.com/AIDASoft/DD4hep/pull/906, fixed by Andre)
2.2) ImageMagick prerequisite. Fixed by adding error message
(PR https://github.com/AIDASoft/DD4hep/pull/908, fixed by Andre)
3) Round table
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3.1) Andre: --
3.2) Thomas: --
3.3) Carl: DD4hep responsibility in CMS will be passed end of June to Sunanda.
3.4) Markus: - Talk requested: "DD4Hep for HSF Simulation Working Group".
Scheduled for May 23th. ( https://indico.cern.ch/event/1146364 )
Need to define the major topics - also with respect to ROOT7
- This is an update talk. They got an earlier talk
- Introduction
- Geometry exchange formats (GDML, ROOT, python, etc)
- Event display formats (??)
- Tessellated shapes & CAD
- ddsim ?
4) AOB
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Next meeting: 09. June 2022