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[Model Runner V2] Do not error on attention backends #32820

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Merged
WoosukKwon merged 1 commit into from
Jan 22, 2026
Merged

[Model Runner V2] Do not error on attention backends #32820

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10 changes: 0 additions & 10 deletions vllm/v1/worker/gpu/model_runner.py
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Original file line number Diff line number Diff line change
Expand Up @@ -247,16 +247,6 @@ def initialize_kv_cache(self, kv_cache_config: KVCacheConfig) -> None:
self.block_tables,
)

# TODO(woosuk): Support other backends.
supported_backends = ("FLASH_ATTN", "FLASHINFER", "FLASHINFER_MLA")
for backend in self.attn_backends.values():
backend_name = backend.get_name()
if backend_name not in supported_backends:
raise NotImplementedError(
f"The {backend_name} attention backend is not supported yet. "
f"Supported backends are: {supported_backends}."
)

self.kv_caches: list[torch.Tensor] = []
init_kv_cache(
self.kv_caches,
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