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NextGenTrigger Task 1.7 Meeting

→ Europe/Zurich
222/R-003 (CERN)

222/R-003

CERN

30
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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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Zoom URL
    • 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
      Memory Systems and Complex Data Layouts: A Performance Puzzle 40m

      This presentation investigates why different C++ data layouts can produce different performance even when they represent the same data and execute the same benchmark kernel. Focusing on a Random Invariant Mass workload, the work uses hardware performance counters and structural layout analysis to study whether the observed performance differences can be explained by cache and memory-hierarchy behavior. The results show that slower layouts do not mainly execute more instructions, but instead incur higher cycle costs and more cache-related activity, especially when useful fields are grouped with large unused data.

      Speakers: All, Henry Minder (University of Amsterdam), Jolly Chen (CERN & University of Twente (NL))
      thesis_presentation_with_scurves.pdf
      thesis_presentation_with_scurves.pptx
    • 10:25 → 10:30
      AOB 5m