NextGenTrigger Task 1.7

• CHEP talk together with Jolly got accepted.
• Presenting "proof of concept" to imrove CMS clustering algorithm CLUE to Felice and NGT.
  • They liked it and they want to work it out.

Implement NGT SoA Code in O2 standalone benchmark

• Working on this fork of the AliceO2 repo, with a CI pipeline:
  • Running on NGT hardware with 4 different GPUs (Nvidia and AMD)
  • Extended CI-pipline to fail if GPU.out changes
• Implemented SoA in:
  
  • SectorTracker
    • GPUTPCBaseTrackParam
    • GPUTPCTrackParam
    • GPUTPCTracklet
    • GPUTPCTrack
• Worked on pull-request for O2.
• Tried also Gabriele's benchmarking tool.
  • See appended CSV file or below for a comparison to standalone benchmark.
  • Made it part of CI-pipeline that benchmarks on NGT GPUs.
• Next Steps:
  • Write minimal reproducer for the (weird) behavior I observed with AMD W7900 and custom .par file.
  • Make better use of SoA to improve performance
  • Try David's suggestion