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[Feat] Support broadcast on Ascend platform #527

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[Feat] Support broadcast on Ascend platform #527

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@harrisonyhq harrisonyhq commented Dec 15, 2025

Purpose

  1. Support broadcast on ascend due to different shape of mla model k cache (nope, rope);
  2. Avoid create empty tensors everytime when need to broadcast, use buffer to decrease create time cost.

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See file changes.

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@qyh111 qyh111 Awaiting requested review from qyh111 qyh111 is a code owner

@ygwpz ygwpz Awaiting requested review from ygwpz ygwpz is a code owner

@mag1c-h mag1c-h Awaiting requested review from mag1c-h mag1c-h is a code owner

@hek14 hek14 Awaiting requested review from hek14 hek14 is a code owner

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