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[ET Device Support] Schema changes: device info on Tensor and buffer-level device array#18391

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Mar 21, 2026
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[ET Device Support] Schema changes: device info on Tensor and buffer-level device array#18391
Gasoonjia merged 1 commit intomainfrom
gh/gasoonjia/122/orig

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@pytorchbot pytorchbot commented Mar 21, 2026

This PR was created by the merge bot to help merge the original PR into the main branch.
ghstack PR number: #17533 by @Gasoonjia
^ 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/gasoonjia/122/base
ghstack PR head: https://github.com/pytorch/executorch/tree/gh/gasoonjia/122/head
Merge bot PR base: https://github.com/pytorch/executorch/tree/main
Merge bot PR head: https://github.com/pytorch/executorch/tree/gh/gasoonjia/122/orig
Differential Revision: D93635657
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[ET Device Support] Schema changes: device info on Tensor
50a71df 
Pull Request resolved: #17533

This diff adds device placement information to the ExecuTorch schema to support representing tensor-level device type information, which will be the basic requirement for the following tensor_parser updates.

This is part of the Phase 1 implementation to make ET device type work E2E without user-specified device placement.

Design doc: https://docs.google.com/document/d/1lwd9BlohmwkN5EEvRulO_b-XnZBwv1nMb5l2K3jfuwA/edit?tab=t.0#heading=h.o6anuvkix4bu
ghstack-source-id: 355133240
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Differential Revision: [D93635657](https://our.internmc.facebook.com/intern/diff/D93635657/)
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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 Mar 21, 2026
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@Gasoonjia Gasoonjia merged commit 60d57e5 into main Mar 21, 2026
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@Gasoonjia Gasoonjia deleted the gh/gasoonjia/122/orig branch March 21, 2026 04:55
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@Gasoonjia Gasoonjia Gasoonjia approved these changes

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

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

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