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agentic-kvc/third_party/vllm/examples/offline_inference/disaggregated-prefill-v1/README.md
Gahow Wang 445e491123 Add vLLM v0.18.1 source tree with KV transfer abort fix 
third_party/vllm/ now tracked in git for direct patch management.
Based on vLLM v0.18.1 release with one patch applied:

  vllm/v1/core/sched/scheduler.py:
    Replace fatal assert with graceful skip when KV transfer callback
    arrives for an already-aborted request during PD disaggregated serving.

Future vLLM modifications should be made directly in third_party/vllm/
and committed normally. The patches/ directory is kept as documentation
of what changed from upstream.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-05-22 00:30:38 +08:00

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Disaggregated Prefill V1

This example contains scripts that demonstrate disaggregated prefill in the offline setting of vLLM.

Files

  • run.sh - A helper script that will run prefill_example.py and decode_example.py sequentially.
    • Make sure you are in the examples/offline_inference/disaggregated-prefill-v1 directory before running run.sh.
  • prefill_example.py - A script which performs prefill only, saving the KV state to the local_storage directory and the prompts to output.txt.
  • decode_example.py - A script which performs decode only, loading the KV state from the local_storage directory and the prompts from output.txt.