[Bug]: --Chunked prefill can't be used together with num-scheduler-steps

[ndao600]

Your current environment

vllm 0.6.0

🐛 Describe the bug

when I try this
vllm serve neuralmagic/Meta-Llama-3.1-70B-Instruct-FP8 --host 0.0.0.0 --port 8000 --tensor-parallel-size 8 --seed 1234 --enable_prefix_caching --enable-chunked-prefill --max-model-len 32000 --num-scheduler-steps 8
I got this
raise ValueError("Chunked prefill is not supported with "
ValueError: Chunked prefill is not supported with multi-step (--num-scheduler-steps > 1)
ERROR 09-08 13:11:00 api_server.py:186] RPCServer process died before responding to readiness probe
is it an expected behavior?

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[robertgshaw2-neuralmagic]

Chunked prefill + multistep is a work in progress. Follow along here: #8001

[tjtanaa]

@ndao600
Is this issue closed by
Core Feature PR: #8645
Bug Fixed PR: #9038