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obsidian/phd/weekly-report/25/250810.md

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Objectives

  • Heterogenous parallelism in cluster
  • EP design for inference performance

Key Results

  • [5/10] Profile different parallelism setup with real trace and analysis their difference
  • [0/10] Meta-analysis for the theory maximum improvement with heterogenous setup
  • [0/10] Understand how EP influence performance fully
  • [0/10] Verify how dynamic EP influence performance
  • [4/10] Analysis correlations between MoE layers (suspended)

Last Week

  • [For KR1] Read vLLM code and understand how vLLM TP/PP/DP works.
  • [For KR1] Run profile test with different config in a more complete search space.
  • [Surveying] Understand the bottleneck of autoscaling in Ali.
  • [Surveying] The opportunity for profile kernel and get a best compute graph to guide the parallelism config.
  • [Misc] Prepare slides for AIR project conclusion defense.

Next Week

  • Survey the possibility of a universal parallelism config search based on kernel. (Start from the related works about NanoFlow)
  • Check the possibility to use GPU bubbles which running small models.
  • Check the challenges to switch parallelism config with context.