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5e4b9f8c6e [Misc] Align CODEOWNERS with module/feature design docs (#5958 )

Signed-off-by: hsliu_ustc <hsliu_ustc@noreply.gitcode.com>
Signed-off-by: Hongsheng Liu <liuhongsheng4@huawei.com>
Co-authored-by: hsliu_ustc <hsliu_ustc@noreply.gitcode.com>
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

2026-08-10 19:25:03 +08:00

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title, kind, status, owners, primary_code_paths, related_code_paths, depends_on, validation_paths, upstream_refs, last_reviewed

title

kind

status

owners

primary_code_paths

related_code_paths

depends_on

validation_paths

upstream_refs

last_reviewed

Diffusion Parallelism

module

draft

@princepride

@yuanheng-zhao

@xuechendi

@Bounty-hunter

vllm_omni/diffusion/distributed/**

vllm_omni/diffusion/attention/parallel/**

vllm_omni/distributed/**

vllm_omni/config/composable_parallel/**

diffusion_runtime.md

../vllm_omni_config.md

tests/diffusion/distributed/**

tests/diffusion/attention/**

torch.distributed

2026-07-16

Diffusion parallelism

Parallelism owns diffusion rank topology, process groups, tensor and sequence sharding, collectives, and distributed execution.

Candidate invariants

PARALLEL-INV-001: Topology has one source of truth

Rule: Rank coordinates, group membership, and parallel dimensions MUST be derived from validated configuration.

PARALLEL-INV-002: Sharding contracts are explicit

Rule: Every distributed boundary MUST define tensor shape, sharded dimension, placement, dtype, producer, and consumer.

PARALLEL-INV-003: Collectives are symmetric

Rule: Process-group members MUST invoke compatible collectives in the same logical order.

PARALLEL-INV-004: Single-rank behavior remains valid

Rule: Distributed implementations SHOULD preserve a supported single-rank path without distributed initialization.

Safe-change guide

Test topology validation, single-rank execution, affected parallel modes, combined modes, invalid shapes, and orderly teardown.

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