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DD4hep Developers Meeting

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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 April 30th, 2026

Present:     Andre, Juan, Markus, Peter, Thomas

Apologies: 


Link to minutes of previous meeting

Merged PRs

  • PR1602:  feat: add Halton sequences support to isotrope generator (Wouter)

  •  

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
  • ISSUE1535: How to add new output variables in Hitsquestion (matclim -> DD4SHip)
                          ===> Debugging ongoing
  • ISSUE1568: Sim hits between two sensitive volumes (Alexander Tuna)
  • ISSUE1604: Question about random seed reproducibility when detector XML is modifiedquestion (Dr.Stubborn/Jiashen Luo)


     Pending PR:

  • PR1240:   Add multithreading support to ddsim (Wouter) 

  • PR1587:   Fields/FieldTypes: performance related cleanups (David Lange)

  • PR1598:   Fix more memory leaks (Juan)

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

  • PR1615:   Remove checks for nullptrs before deleting, since deleting is a no-op (Juan)

Round Table

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

AOB

Next meeting:   May 14th, 2026

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