[slimtensor] integration into backend#17070
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Pull Request resolved: #16565 This diff makes cuda backend actually use slimtensor. It: 1. updates cuda_backends to create slimtensor from given etensor 2. removed duplicate etensor-driven shim layers under cuda_backend 3. update cmake logic in both cuda backend and aoti backend Perf maintains the same. Shows as before. {F1984982156} Worth to notice that currently we keeps two sets of common shims, one is etensor-based and for metal backend, the other is slimtensor-based which used by cuda backend, to not impact metal backend work. When Metal backend finishs the migration, we should delete the duplicate common shims and only keep slimtensor-based one. ghstack-source-id: 336976428 @exported-using-ghexport Differential Revision: [D90606409](https://our.internmc.facebook.com/intern/diff/D90606409/)
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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: #16565 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/101/base ghstack PR head: https://github.com/pytorch/executorch/tree/gh/gasoonjia/101/head Merge bot PR base: https://github.com/pytorch/executorch/tree/main Merge bot PR head: https://github.com/pytorch/executorch/tree/gh/gasoonjia/101/orig Differential Revision: [D90606409](https://our.internmc.facebook.com/intern/diff/D90606409/) @diff-train-skip-merge Co-authored-by: gasoonjia <gasoonjia@icloud.com> Co-authored-by: Cursor <cursoragent@cursor.com>
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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: #16565 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/101/base
ghstack PR head: https://github.com/pytorch/executorch/tree/gh/gasoonjia/101/head
Merge bot PR base: https://github.com/pytorch/executorch/tree/main
Merge bot PR head: https://github.com/pytorch/executorch/tree/gh/gasoonjia/101/orig
Differential Revision: D90606409
@diff-train-skip-merge