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Support grouped state heads in GDN attention (#21402) - #21402

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Support grouped state heads in GDN attention (#21402)#21402
JakeStevens wants to merge 1 commit into
pytorch:mainfrom
JakeStevens:export-D113299906

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@JakeStevens JakeStevens commented Jul 27, 2026

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Summary:

Adds separate query-head and state-head configuration to the model definition as well as updates the fused
channelwise_gated_delta_rule custom op to support grouped decode and prefill.

Reviewed By: YIWENX14

Differential Revision: D113299906

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pytorch-bot Bot commented Jul 27, 2026

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🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/21402

Note: Links to docs will display an error until the docs builds have been completed.

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As of commit 7f23e06 with merge base d632341 (image):
💚 Looks good so far! There are no failures yet. 💚

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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 Jul 27, 2026
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meta-codesync Bot commented Jul 27, 2026

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@JakeStevens has exported this pull request. If you are a Meta employee, you can view the originating Diff in D113299906.

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This PR needs a release notes: label

If your change should be included in the release notes (i.e. would users of this library care about this change?), please use a label starting with release notes:. This helps us keep track and include your important work in the next release notes.

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JakeStevens added a commit to JakeStevens/executorch that referenced this pull request Jul 30, 2026
Summary:

Adds separate query-head and state-head configuration to the model definition as well as updates the fused
channelwise_gated_delta_rule custom op to support grouped decode and prefill.

Differential Revision: D113299906
@meta-codesync meta-codesync Bot changed the title Support grouped state heads in GDN attention Support grouped state heads in GDN attention (#21402) Jul 30, 2026
JakeStevens added a commit to JakeStevens/executorch that referenced this pull request Jul 30, 2026
Summary:

Adds separate query-head and state-head configuration to the model definition as well as updates the fused
channelwise_gated_delta_rule custom op to support grouped decode and prefill.

Reviewed By: YIWENX14

Differential Revision: D113299906
Summary:

Adds separate query-head and state-head configuration to the model definition as well as updates the fused
channelwise_gated_delta_rule custom op to support grouped decode and prefill.

Reviewed By: YIWENX14

Differential Revision: D113299906
JakeStevens added a commit to JakeStevens/executorch that referenced this pull request Jul 30, 2026
Summary:

Adds separate query-head and state-head configuration to the model definition as well as updates the fused
channelwise_gated_delta_rule custom op to support grouped decode and prefill.

Reviewed By: YIWENX14

Differential Revision: D113299906
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