[ET-VK] Deduplicate transition clone nodes in TagMemoryMetaPass#18780
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SS-JIA merged 1 commit intogh/SS-JIA/516/origfrom Apr 8, 2026
Merged
[ET-VK] Deduplicate transition clone nodes in TagMemoryMetaPass#18780SS-JIA merged 1 commit intogh/SS-JIA/516/origfrom
SS-JIA merged 1 commit intogh/SS-JIA/516/origfrom
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Pull Request resolved: #18771 When the same tensor is consumed by multiple ops that need a different storage representation, the pass previously inserted a separate clone transition for each consumer. Now it caches transition clones keyed by (source_node, target_storage_type, target_layout) and reuses existing clones when the same transition is needed again. For Qwen3 0.6B (8da4w fp16), the embedding output (BUFFER due to vocab_size exceeding texture limits) feeds both rms_norm and add which need TEXTURE. Previously 2 clones were inserted; now 1 clone is shared. Authored by Claude. ghstack-source-id: 364280900 @exported-using-ghexport Differential Revision: [D100004700](https://our.internmc.facebook.com/intern/diff/D100004700/)
🔗 Helpful Links🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/18780
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This PR was created by the merge bot to help merge the original PR into the main branch.
ghstack PR number: #18771 by @SS-JIA
^ Please use this as the source of truth for the PR details, comments, and reviews
ghstack PR base: https://github.com/pytorch/executorch/tree/gh/SS-JIA/517/base
ghstack PR head: https://github.com/pytorch/executorch/tree/gh/SS-JIA/517/head
Merge bot PR base: https://github.com/pytorch/executorch/tree/gh/SS-JIA/516/orig
Merge bot PR head: https://github.com/pytorch/executorch/tree/gh/SS-JIA/517/orig
Differential Revision: D100004700
@diff-train-skip-merge