[Feature]: Support cfg kv-cache transfer in multi-stage#1422

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hsliuustc0106 merged 32 commits intovllm-project:mainfrom

princepride:feature/cfg-multi-stage

Mar 2, 2026

Commits on Feb 21, 2026

cfg multi-stage
princepride
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Commits on Feb 22, 2026

_forward_parent_with_cfg saved in parent_result['engine_outputs'] && add companion timeout
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only check whether parent have complete
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Commits on Feb 24, 2026

Merge branch 'main' into feature/cfg-multi-stage
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Remove unused completed_requests param from _forward_parent_with_cfg

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Build reverse index for O(1) companion-to-parent lookup

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Add single-threaded assumption note for source_outputs_override swap

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Remove unused is_cfg_companion_request and get_parent_request_id

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Clarify why cfg_kv_collect_func is resolved on the parent side

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Fix _get_negative_prompt to treat empty string as absent

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Add comment explaining max_batch_size assumption in bagel.yaml

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fix pre-commit
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remove omni cfg_kv_collect_func
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move load_func_from_config to stage_utils
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Merge branch 'main' into feature/cfg-multi-stage
princepride
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Commits on Feb 27, 2026

Merge branch 'main' into feature/cfg-multi-stage
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Commits on Feb 28, 2026

Commits on Mar 1, 2026

Commits on Mar 2, 2026

test kv_transfer_manager methods expand
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