NextGenTrigger Task 1.7 Meeting

Thursday 3 Jul 2025, 09:30 → 10:30 Europe/Zurich

40/R-D10 (CERN)

09:30 → 09:35 Project updates

Speakers: Dr Andrea Bocci (CERN), Attila Krasznahorkay (University of Massachusetts (US)), Axel Naumann (CERN)

09:40 → 10:20 Reports and updates

Speaker: All

Eric:

Investigation on CUDA launch strategies showed that calling CUDA runtime from a single thread is a must for performance. Kernel launch time is 5x longer with multiple threads and host function launch even 100x longer. I'll prepare the full presentation for next week,

 

Oliver:

Summer Student

• ALICE summer student has arrived: Milla Bramsted
• She is working on benchmarking SoA code on GPUs.
• We will track her project in this google doc.
• She will add CUDA kernels to this repo.

ALICE O2 CI-Pipelines on NGT Cluster

• A fork of the AliceO2 repo is not in the  NextGenTrigggers (NGT) GitHub organization.
• It has a GitHub action running the standalone benchmark on NGT GPUs (H100).
• Uses the builds in /cvmfs/alice.cern.ch/ of O2 and dependencies (pipeline takes about 7 minutes).

 

10:25 → 10:30 AOB