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    Key4hep Discussion

    → Europe/Zurich
    32/S-C22 (CERN)

    32/S-C22

    CERN

    17
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    Attendees: Andre, Juan, Mateusz, Swathi, Benedikt, Leonhard

    Apologies:

    Date: June 4, 2024

    ## News

    * Summerstudent coming next week:
        * [ ] Room ?
        * [ ] Activate Network outlet?
        * [ ] Computing Account?
        * [ ] Machine available, has to be installed

    ## Round The Table

    ### Benedikt 
    * Working on EDM4hep/podio
    * HepMC to EDM4hep (GeneratorInformation) ready for review
    * cdash3: need to fix some bug 

    ### Leonhard

    * Discussing future collider analysis example in re-ana in punch4nfdi with Bonn University
    * [k4DetPerformance](https://github.com/key4hep/k4detperformance) kick-off meeting
    * Basing analysis on DST files (including ISR, FSR, hadronisation in MC Record)
    * ACTS: Geometry ingestion still needs work

    ### Swathi

    * DDCaloDigi porting
        * VirtualCellCombiner (or something)
    * Using maps for assigning names to output collections is not guaranteed to end up with the correct content under the correct name
        * DDCaloDigi can be run once for each collection instead of on all 6 collections in one go
        * Other cases where this is a problem?

    * Up-to-date Gaudi Splitting / Merging examples?

    ### Juan

    * Preparing a presentation for the Gaudi tomorrow, June 5, at 17:00 at k4FWCore
    * FCC week:
        * Draft of Key4hep poster
        * Talk WIP
    * Overlay:
        * Some data from Brieuc
        * Need to be able to clone without relations
        * Sometimes CaloContributions are written without Hits

    ### Mateusz

    * Training on Global Address-Space Programming Interface (GASPI)
    * Reviewing Oleksander's PR, adding pipelines in julia, scheduling
        * Finishing work, report, presentation

    * Investigating Task-Flow. 
        * Asynchronos scheduling: allows adding tasks at runtime, but cannot mix with "static" tasks
        * Heterogenous framework: but have to specify which task on which device on which "stream", not very flexible

    ### Andre

    * Maybe fixed an issue for LHCb in DD4hep, but awaiting confirmation

    ## AOB

    ## Summerstudents
    * Summerstudent: Are PCs there for the summer students? Do we need to order new ones?
        * Juan/Swathi have a PC, Lorenzo V's PC, need one more? 
        * Mateusz will check w/ Benedikt
        * Screens: Lorenzo V (2x), +1 in Juan's office
        * Leonhard told Yasemin weeks ago about needing a more up-to-date PC

    * Dates:
        * Katerina Kostova: 01/07 to 27/09
        * Giulia Gianoli: 01/07 to 27/09
        * Joshua Ott: 10/06 to 09/08

    ## Next Meeting

    June 11, 2024

    ## TODO

    There are minutes attached to this event. Show them.
      • 13:00 → 13:55
        Round The Table 55m
        Speakers: Andre Sailer (CERN), Benedikt Hegner (CERN), Carsten Hensel (CBPF - Brazilian Center for Physics Research (BR)), Juan Miguel Carceller (CERN), Leonhard Reichenbach (University of Bonn (DE)), Dr Mateusz Jakub Fila (CERN), Swathi Sasikumar (CERN)
        tikzposter.pdf