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Andre Sailer (CERN), Markus Frank (CERN)
Description

Please Join DD4hep developer's meeting via Zoom

DD4hep Developers Meeting
Zoom Meeting ID
68917133930
Host
Andre Sailer
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DD4hep Meeting July 2nd, 2026

Present:     Andre, Juan, Markus, Peter, Thomas

Apologies: --


Link to minutes of previous meeting

Merged PRs

  • PR1636:       fix: honor G4OpticalParameters process activation flags in DDG4 (Wouter)
  • PR1641:       feat: add plugin for G4HepEm vectorized EM physics (Wouter)
  • PR1646:       Use Clang 22 instead of 19 in CI, soon unsupported (Juan)

Closed PRs, closed issues and fixed problems

  • None

Pending Problems

  • ISSUE1297: Possible to dump all available readout elements?
                          ==> Possibly a copy of unsolved ISSUE580 from Valentin about enumerating all sensitive cells.
  • ISSUE1335: Uniform random picking of points on detector surfaces for noise studies
                           This problem is linked to #1297 and #580.
  • ISSUE1458: XML file vs TGeoStored geometry in GenFit
  • ISSUE1501: Bug/Feature: Condense duplicated particle contributions in calorimeter question
  • ISSUE1568: Sim hits between two sensitive volumes (Alexander Tuna)
  • ISSUE1604: Question about random seed reproducibility when detector XML is modifiedquestion (Dr.Stubborn/Jiashen Luo)
  • ISSUE1633: Decouple DD4hep Readers/Writers into Separate Source and Injection/Build Stagesenhancement (Simon Gardner)
  • ISSUE1635: ddsim crashes when given a particle outside world volumebug (Andre)

Pending PR:

  • PR1240:   Add multithreading support to ddsim (Wouter) 
  • PR1590:   Fix more memory leaks (Juan)

  • PR1606:   feat: AdePT physics list plugin for e+/e-/gamma offload to GPU [WIP] (Wouter)

  • PR1617:   Make EventSeeder run before primary generation (Andre)
  • PR1626:   feat: add support for python geometry plugins  (Wouter)
  • PR1629:   Refactor Geant4Output2ROOT (Juan)
  • PR1647:   Bump action

New:

  • None

Round Table

Andre:            NTR
Juan:              NTR
Markus:         NTR
Peter:             NTR
Thomas:        ------

Next meeting:   July 16th, 2026

There are minutes attached to this event. Show them.
    • 15:30 → 15:50
      Around the table 20m