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Summary: This change affects the performance and memory usage of the quantized matrix multiplication operation in the Executorch Vulkan backend. By using a buffer for weight tensors, the operation may become more efficient and use less memory, especially for large matrices.

Differential Revision: D87911255

@trivedivivek trivedivivek requested a review from SS-JIA as a code owner November 26, 2025 06:46
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🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/15990

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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 Nov 26, 2025
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meta-codesync bot commented Nov 26, 2025

@trivedivivek has exported this pull request. If you are a Meta employee, you can view the originating Diff in D87911255.

@trivedivivek trivedivivek added the release notes: vulkan Changes to the Vulkan backend delegate label Nov 26, 2025
…r. (pytorch#15988)

Summary:

This diff optimizes the performance of the quantized linear matrix multiplication operation by using a 4x3 tiled shader, which performs slightly better than the previous implementation.

Reviewed By: yipjustin

Differential Revision: D87902847
)

Summary:

The code change in this diff aims to improve the performance of buffer 4b matrix multiplication by reducing unnecessary computations and by spreading operations to allow better latency hiding.

Reviewed By: yipjustin

Differential Revision: D87910988
)

Summary:

This change affects the performance and memory usage of the quantized matrix multiplication operation in the Executorch Vulkan backend. By using a buffer for weight tensors, the operation may become more efficient and use less memory, especially for large matrices.

Reviewed By: yipjustin

Differential Revision: D87911255
trivedivivek added a commit to trivedivivek/executorch that referenced this pull request Nov 26, 2025
)

Summary:

This change affects the performance and memory usage of the quantized matrix multiplication operation in the Executorch Vulkan backend. By using a buffer for weight tensors, the operation may become more efficient and use less memory, especially for large matrices.

Reviewed By: yipjustin

Differential Revision: D87911255
@trivedivivek trivedivivek force-pushed the export-D87911255 branch 2 times, most recently from fe35988 to 88fe2f2 Compare November 26, 2025 21:17
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2 participants