RoCE course / Module 3
RoCE and RDMA for AI fabrics
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0 of 5 cases closed
Measurement
Measuring the fabric: perftest, GPUDirect and NCCL
Produce and defend a number: run perftest and nccl-tests correctly, prove GPUDirect is actually on, and translate busbw into a statement about which piece of hardware is the bottleneck.
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- Checkpoint
- A case closes when the lesson’s retrieval check reaches 80%.
Lessons and checkpoint
- 3.1What ib_write_bw actually measuresThe 180 that was never 180Apply30 min
- 3.2NUMA, data validation, and doca_perftestThe first word on the lineAnalyze30 min
- 3.3GPUDirect RDMA: proving it is actually onWhichever slot was easiest to reachAnalyze35 min
- 3.4NCCL environment variables on a RoCE fabricThe design was correct; the traffic never entered itApply35 min
- 3.5algbw, busbw, and reading a nccl-tests resultThe 1.75x he called marketingAnalyze30 min
- Module 3 checkpoint14 questions · pass mark 80% · 12 min