DD4hep Developers Meeting

Europe/Zurich
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Andre Sailer (CERN), Markus Frank (CERN)
Description

Please Join DD4hep developer's meeting via Zoom

Videoconference
DD4hep Developers Meeting
Zoom Meeting ID
94414304006
Host
Marko Petric
Alternative host
Andre Sailer
Passcode
15681862
Useful links
Join via phone
Zoom URL

Present:  S. Banerjee, M. Frank, F. Gaede, 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.
1.7) Issue 913: XML parsing with non-standard linux-locale.


2)    Closed issues and fixed problems
----

2.1) PR 910: Fix to plugin manager: Prevent crash at load time if LD_LIBRARY_PATH is not set.
2.2) PR 911: Add VariantParameters extension + plugin. General purpose parameter map which can be attached to detector elements.
2.3) PR 916, 915, 914: Fixes/improvements of ddsim by Andre. Feature to load multiple xml files.


3) Round table
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3.1)  Markus:      EIC software talk about decision making for using DD4hep.
3.2)  Andre:         See above.
3.2)  Frank:         AIDA hackathon will take place 21-23 June.
3.3)  Carl:            DD4hep responsibility in CMS will be passed end of June to Sunanda.
                            Will do regular builds with the DD4hep head.
3.4)  Sunanda:     --

4) AOB
----

Next meeting:   07. July 2022
 

There are minutes attached to this event. Show them.
    • 3:30 PM 3:50 PM
      Around the table 20m