DD4hep Developers Meeting

Name: DD4hep Developers Meeting
Start: 2025-07-31T15:30:00+02:00
End: 2025-07-31T16:00:00+02:00
Location: zoom

Thursday 31 Jul 2025, 15:30 → 16:00 Europe/Zurich

zoom

Andre Sailer (CERN), Markus Frank (CERN)

Description

Please Join DD4hep developer's meeting via Zoom

68917133930

Andre Sailer

Hide

DD4hep Meeting July 31rst, 2025

Present: Andre, Juan

Apologies: Markus, Thomas

Link to minutes of previous meeting

#1477: PDGFile: more documentation to mention secondary vertices (Juan Miguel)
#1478: Print warning when overwriting Detector::Header object (Markus) (see ISSUE1469)
#1479: Remove from __future__ import since we are using Python 3 (Juan Miguel)
#1476: DDG4: Add possibility to call G4PrimaryTransformer::SetKETolerance (Andre)
#1480: Use . instead of -> for EDM4hep objects that are not pointers (Juan Miguel)

ISSUE1481: Need help with C++question --> Irrelevant for us. Closed by Andre.
ISSUE1475: Geant4 11.3 introduces default verbose warnings for off-shell unstable resonancesenhancement
PR1304: SurfaceManager: lazily construct surface maps on demand> Closed by Markus

ISSUE1285: Memory Consumption of Sensitive Detectors
==> Should be handled as illustrated in PR1288. Intrinsic problem of the Geant4VolumeManager;
ISSUE1297: Possible to dump all available readout elements?
==> Possibly a copy of unsolved ISSUE580 from Valentin about enumerating all sensitive cells.
ISSUE1319: Problem with regexSensitiveDetector and volume IDs
==> Interesting use case for reg-ex sensitive detectors
having a VolumeMgr equivalent.
ISSUE1320: Replacing a Handle<Segmentation> which contains a MultiSegmentation with the underlying Segmentation
==> Unclear what he really means.
ISSUE1335: Uniform random picking of points on detector surfaces for noise studies
This problem is linked to #1297 and #580.
PR1240: Add multithreading support to ddsim
PR1304: SurfaceManager: lazily construct surface maps on demand (Leonhard Reichenbach)
PR1314: Cylinder segment surface (Armin Ilg)
ISSUE1373: Add GeneratorInfo to EDM4hepReader (Andre)
ISSUE1443: Make user particle handler extensible
---> Maybe we should take advantage and re-collect requirements.
ISSUE1458: XML file vs TGeoStored geometry in GenFit
ISSUE1469: Memory leak in Compact2Objects / Detector concerning Headerbug
---> See MR #1478

Andre: NTR
Markus: NTR
Juan: NTR

Next meeting: August 14th, 2025

There are minutes attached to this event. Show them.