[ET-VK] Enable IntxWeightOnlyConfig #13466
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🔗 Helpful Links🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/13466
Note: Links to docs will display an error until the docs builds have been completed. ❌ 1 New Failure, 1 Pending, 1 Unrelated FailureAs of commit c2f9db2 with merge base cf669e3 ( NEW FAILURE - The following job has failed:
BROKEN TRUNK - The following job failed but were present on the merge base:👉 Rebase onto the `viable/strict` branch to avoid these failures
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Pull Request resolved: #13452 ## Motivation Be able to test Vulkan lowering via optimum-executorch. ## Context Very similar to the below PR, Int4 weight only quantization is currently enabled in Vulkan via a custom source transform quantizer that replaces linear layers with a custom linear layer that calls a custom weight only quantized linear op. This diff aims to make it so that no Vulkan specific source transforms need to be applied by adding a fusion pattern for weight only quantized linear. ## Changes * Introduce a fusable graph pattern for weight only quantized linear * Add fusion logic for weight only quantized linear in the fuse patterns pass * Add `4w` qmode to the export llama script ghstack-source-id: 303387280 Differential Revision: [D80293302](https://our.internmc.facebook.com/intern/diff/D80293302/)
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## Motivation Be able to test Vulkan lowering via optimum-executorch. ## Context Very similar to the below PR, Int4 weight only quantization is currently enabled in Vulkan via a custom source transform quantizer that replaces linear layers with a custom linear layer that calls a custom weight only quantized linear op. This diff aims to make it so that no Vulkan specific source transforms need to be applied by adding a fusion pattern for weight only quantized linear. ## Changes * Introduce a fusable graph pattern for weight only quantized linear * Add fusion logic for weight only quantized linear in the fuse patterns pass * Add `4w` qmode to the export llama script Differential Revision: [D80293302](https://our.internmc.facebook.com/intern/diff/D80293302/) [ghstack-poisoned]
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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: #13452 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/288/base
ghstack PR head: https://github.com/pytorch/executorch/tree/gh/SS-JIA/288/head
Merge bot PR base: https://github.com/pytorch/executorch/tree/gh/SS-JIA/287/orig
Merge bot PR head: https://github.com/pytorch/executorch/tree/gh/SS-JIA/288/orig
@diff-train-skip-merge