NextGenTrigger Task 1.7

• Nothing

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
• CHEP2026 proceedings
• Make better use of SoA to improve performance
  • Sorted Tracklets by lastRow and (lastRow - firstRow) to counter warp divergence.
  • Tried grouping Tracklets into non-overlaping blocks and run each Selector thread over all rows.

• Next Steps:
  • Fix worsening of the coalescing (due to TrackletRowHits).
  • Try different way of allocating tracklets.
  • Generate GPU parameters .csv file for SoA and to see if the optimal parameters are different