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[Core] Add All-to-All communication backend for DCP (#34883)

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Signed-off-by: Sungsoo Ha <sungsooh@nvidia.com>
Signed-off-by: sungsoo ha <hasungsoo@gmail.com>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
Co-authored-by: Lucas Wilkinson <LucasWilkinson@users.noreply.github.com>
Co-authored-by: Harry Mellor <19981378+hmellor@users.noreply.github.com>
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sungsoo ha
2026-03-04 07:01:57 -08:00
committed by GitHub
parent ead7bde1ab
commit 6cb901093f
8 changed files with 658 additions and 17 deletions
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vllm/config/vllm.py
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@@ -1645,6 +1645,8 @@ class VllmConfig:
f"tensor_parallel_size={self.parallel_config.tensor_parallel_size}, " # noqa
f"pipeline_parallel_size={self.parallel_config.pipeline_parallel_size}, " # noqa
f"data_parallel_size={self.parallel_config.data_parallel_size}, " # noqa
f"decode_context_parallel_size={self.parallel_config.decode_context_parallel_size}, " # noqa
f"dcp_comm_backend={self.parallel_config.dcp_comm_backend}, " # noqa
f"disable_custom_all_reduce={self.parallel_config.disable_custom_all_reduce}, " # noqa
f"quantization={self.model_config.quantization}, "
f"enforce_eager={self.model_config.enforce_eager}, "