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[V1][TPU] Add assertion on multi-step-scheduler #14707

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Merged
merged 1 commit into from
Mar 13, 2025
Merged

[V1][TPU] Add assertion on multi-step-scheduler #14707

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16 changes: 11 additions & 5 deletions vllm/platforms/tpu.py
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Original file line number Diff line number Diff line change
Expand Up @@ -91,13 +91,19 @@ def check_and_update_config(cls, vllm_config: VllmConfig) -> None:
parallel_config = vllm_config.parallel_config
scheduler_config = vllm_config.scheduler_config
if parallel_config.worker_cls == "auto":
if envs.VLLM_USE_V1:
parallel_config.worker_cls = \
"vllm.v1.worker.tpu_worker.TPUWorker"
else:
if scheduler_config.is_multi_step:
if scheduler_config.is_multi_step:
if envs.VLLM_USE_V1:
raise NotImplementedError(
"Multi-step scheduling is not supported (and not "
"needed) on vLLM V1. Please launch without "
"--num-scheduler-steps.")
else:
parallel_config.worker_cls = \
"vllm.worker.multi_step_tpu_worker.MultiStepTPUWorker"
else:
if envs.VLLM_USE_V1:
parallel_config.worker_cls = \
"vllm.v1.worker.tpu_worker.TPUWorker"
else:
parallel_config.worker_cls = \
"vllm.worker.tpu_worker.TPUWorker"
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