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NextGenTrigger Task 1.7 Meeting

→ Europe/Zurich
40/R-D10 (CERN)

40/R-D10

CERN

20
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NGT Task 1.7
Zoom Meeting ID
65606242618
Host
Axel Naumann
Alternative hosts
Andrea Bocci, Attila Krasznahorkay
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    • 09:30 → 09:35
      Project updates 5m
      Speakers: Dr Andrea Bocci (CERN), Attila Krasznahorkay (University of Massachusetts (US)), Axel Naumann (CERN)
    • 09:40 → 10:20
      Reports and updates 40m
      Speaker: All
      benchmark

      Scaling in traccc with vecmem v.1.23 with CUDA event caching

      Much better scaling as-is.

      L40

      H100

      • cudaLaunchHostFunc seems costly for suspension synchronization. Events investigated as a replacement.
      • Delegation does help mitigate the suspension cost but TBB seems to hang in some combinations of threads/slots. Alternative to investigate: delegate to a bare thread instead of a TBB 1-thread arena.
    • 10:25 → 10:30
      AOB 5m