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[Vulkan] Add aten.any.dim - #23214

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@mergennachin mergennachin commented Sep 28, 2026 •

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Superseded by #23253, part 14/15 of the ghstack replacement series. The current integration PR is #23254. This PR is closed in favor of the replacement; its previous description and review history are retained.


Padding masks in transformer blocks reduce bool tensors with any(dim), which forced a CPU fallback in the middle of the block. This adds uint8 any variants to the reduce and per-row reduce shaders, accumulating with max over uint8-backed bool storage, and registers the op with the existing reduce support rules.

Part 14/15 of the Vulkan transformer and operator-conformance stack. Depends on #23213; review against the selected base branch. Integration PR: #23162.

Validation: 3 passed, 2 warnings in 57.92s. Lintrunner and git diff --check pass. Native tests use MoltenVK with portable CPU kernels; hardware and SwiftShader CI are pending.

Authored with OpenAI Codex; split planned with Claude Code.

cc @SS-JIA @manuelcandales @digantdesai @cbilgin

Padding masks in transformer blocks reduce bool tensors with any(dim), which forced a CPU fallback in the middle of the block. This adds uint8 any variants to the reduce and per-row reduce shaders, accumulating with max over uint8-backed bool storage, and registers the op with the existing reduce support rules.

Authored with OpenAI Codex; split planned with Claude Code.
@pytorch-bot pytorch-bot Bot added the module: vulkan Issues related to the Vulkan delegate and code under backends/vulkan/ label Sep 28, 2026
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pytorch-bot Bot commented Sep 28, 2026 •

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🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/23214

Note: Links to docs will display an error until the docs builds have been completed.

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@meta-cla meta-cla Bot added the CLA Signed This label is managed by the Facebook bot. Authors need to sign the CLA before a PR can be reviewed. label Sep 28, 2026

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cadence — eb2400ea Deployed Sep 28, 2026 by mergennachin via hifi-op-test / hifi4 #30218
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