project6-dev 5a05d4528c fix(stability): prevent OOM crash + disable garbled topk_softmax kernel
Sub 655 analysis: 634/881 connection errors (server crash during replay).
Root cause: max-model-len=256000 + gpu-memory-utilization=0.95 + max-num-seqs=2
caused OOM on long-context requests (128K+ tokens).

Changes:
- max-model-len: 256000 → 131072 (enough for replay, prevents OOM)
- gpu-memory-utilization: 0.95 → 0.90 (safety margin)
- max-num-seqs: 2 → 1 (avoid concurrent long-context OOM)
- max-num-batched-tokens: 4096 → 8192 (match proven config)
- BI100_MOE_COREX_TOPK_SOFTMAX=0 (CUB kernel causes garbled output on
  BI-V100; PyTorch topk+softmax path is correct and fast enough)

Expected impact: server stays alive through entire replay+opencompass run.
Sub 655 successful requests had output_tps_avg=11.5 — the TPS is fine,
we just need the server to not crash.
2026-08-13 02:35:50 +00:00
2026-08-07 08:43:51 +00:00
2026-07-30 17:03:23 +08:00
2026-08-13 02:29:40 +00:00

project_6

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