[ExecuTorch][WebGPU] Coordinate dynamic dispatch routes by JCNTH · Pull Request #21128 · pytorch/executorch

JCNTH · 2026-07-22T04:10:58Z

Stack from ghstack (oldest at bottom):

Centralize dynamic dispatch routing, resize hooks, and workgroup-grid ownership

Quantized-linear and attention optimizations select specialized dispatch ranges from live sequence lengths, but the original handlers duplicated resize bookkeeping and exposed dispatch indices. This change centralizes route coordination and dynamic-grid ownership in WebGPUGraph.

Key changes:

WebGPUUtils.h — register mutually exclusive routes and validate their ranges.
WebGPUGraph.{h,cpp} — add typed named resize hooks, descriptor-driven compute construction, graph-owned parameter buffers and dynamic grids, staged grid updates, and exception-safe retry.
QuantizedLinear.cpp, Sdpa.cpp, and SdpaFdDecode.{h,cpp} — select specialized ranges through the shared route registry.
test_compute_dispatch.cpp — cover invalid triggers, route overlap, rollback/retry, ownership, and repeated transitions.

The route registry is WebGPU-specific. Graph-owned grid recomputation mirrors Vulkan's DynamicDispatchNode lifecycle without introducing a Vulkan-style node hierarchy.

Co-authored-with: Claude Code.
@exported-using-ghexport

Differential Revision: D113171748

[ghstack-poisoned]

pytorch-bot · 2026-07-22T04:11:02Z

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/21128

📄 Preview Python docs built from this PR

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

❌ 46 New Failures, 30 Pending

As of commit 4147d1f with merge base 28a7fac ():

NEW FAILURES - The following jobs have failed:

Cadence Build & Test / cpu-test / test-aot / test-aot (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID C7C2:30BA9A:3994A5D:C4A034B:6A760B51 and timestamp 2026-08-07 16:44:01 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
Cadence Build & Test / cpu-test / test-ops / test-ops (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID 818C:1E52A0:794F797:1980C0E1:6A760B5B and timestamp 2026-08-07 16:44:11 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-eval_llama-wikitext-linux / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID E062:241092:4CBBA33:103BE760:6A760B45 and timestamp 2026-08-07 16:43:49 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-llama_runner_eager-linux / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID 8C96:3D3924:83A3598:1BBFFA8B:6A760B6B and timestamp 2026-08-07 16:44:27 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-lora-linux / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID 9886:211490:86152DF:1C1D938A:6A760B90 and timestamp 2026-08-07 16:45:04 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-lora-multimethod-linux / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID 8E50:1677CB:8828381:1C715D75:6A760B3E and timestamp 2026-08-07 16:43:42 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-mediatek-models-linux / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID DAC4:3FD34A:8658F41:1C0F0347:6A760B72 and timestamp 2026-08-07 16:44:34 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-models-linux (add_mul, portable, linux.2xlarge) / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID CF52:37DB1F:4CDD804:1046F087:6A760BB8 and timestamp 2026-08-07 16:45:44 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-models-linux (add_mul, xnnpack-quantization-delegation, linux.2xlarge) / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID E478:19516B:80BF331:1B379D76:6A760BCE and timestamp 2026-08-07 16:46:06 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-models-linux (add, portable, linux.2xlarge) / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID DB30:8A136:4B46A0E:FF5221D:6A760BB9 and timestamp 2026-08-07 16:45:45 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-models-linux (add, xnnpack-quantization-delegation, linux.2xlarge) / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID C30E:81FA3:4D9B22E:106713FE:6A760BB0 and timestamp 2026-08-07 16:45:36 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-models-linux (emformer_transcribe, portable, linux.2xlarge) / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID CA38:2C3D6C:4C77FBE:102EB0D2:6A760BC7 and timestamp 2026-08-07 16:45:59 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-models-linux (emformer_transcribe, xnnpack-quantization-delegation, linux.2xlarge) / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID ED08:3FF05C:84D7ECA:1BFD8FA2:6A760BD2 and timestamp 2026-08-07 16:46:10 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-models-linux (ic3, portable, linux.2xlarge) / linux-job (gh)
##[error]An error occurred trying to start process '/usr/bin/bash' with working directory '/home/ec2-user/actions-runner/_work/executorch/executorch/pytorch/executorch'. No such file or directory
pull / test-models-linux (ic3, xnnpack-quantization-delegation, linux.2xlarge) / linux-job (gh)
##[error]An error occurred trying to start process '/usr/bin/bash' with working directory '/home/ec2-user/actions-runner/_work/executorch/executorch/pytorch/executorch'. No such file or directory
pull / test-models-linux (linear, portable, linux.2xlarge) / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID 953E:92C8C:36A6C55:BA1330F:6A760BB2 and timestamp 2026-08-07 16:45:38 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-models-linux (linear, xnnpack-quantization-delegation, linux.2xlarge) / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID BEF6:63CA7:824B828:1B757FF5:6A760BC2 and timestamp 2026-08-07 16:45:54 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-models-linux (mobilebert, portable, linux.2xlarge) / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID B18C:358D5F:85A4F8A:1C26B8CF:6A760BB7 and timestamp 2026-08-07 16:45:43 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-models-linux (mobilebert, xnnpack-quantization-delegation, linux.2xlarge) / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID DDBA:15336D:82FAFA6:1B869ED1:6A760BBE and timestamp 2026-08-07 16:45:51 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-models-linux (mv2, portable, linux.2xlarge) / linux-job (gh)
##[error]An error occurred trying to start process '/usr/bin/bash' with working directory '/home/ec2-user/actions-runner/_work/executorch/executorch/pytorch/executorch'. No such file or directory
pull / test-models-linux (resnet18, portable, linux.2xlarge) / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID 87CE:4723F:36CA098:BA47BD3:6A760BBD and timestamp 2026-08-07 16:45:49 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-models-linux (resnet18, xnnpack-quantization-delegation, linux.2xlarge) / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID D898:236993:4FF508F:10E3B2F7:6A760BA9 and timestamp 2026-08-07 16:45:29 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-models-linux (resnet50, portable, linux.2xlarge) / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID DD5E:40619:390C1A6:C2DFD65:6A760BBB and timestamp 2026-08-07 16:45:47 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-models-linux (resnet50, xnnpack-quantization-delegation, linux.2xlarge) / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID 890C:7E39:8EBA8B4:1E38B8F8:6A760BB8 and timestamp 2026-08-07 16:45:44 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-models-linux-basic (mv3, portable, buck2, linux.2xlarge, executorch-ubuntu-22.04-clang12) / linux-job (gh)
##[error]An error occurred trying to start process '/usr/bin/bash' with working directory '/home/ec2-user/actions-runner/_work/executorch/executorch/pytorch/executorch'. No such file or directory
pull / test-models-linux-basic (mv3, portable, cmake, linux.2xlarge, executorch-ubuntu-22.04-clang12) / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID 97B6:2AB583:90DD30C:1E6E4BA3:6A760B8A and timestamp 2026-08-07 16:44:58 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-models-linux-basic (mv3, xnnpack-quantization-delegation, buck2, linux.2xlarge, executorch-u... / linux-job (gh)
##[error]An error occurred trying to start process '/usr/bin/bash' with working directory '/home/ec2-user/actions-runner/_work/executorch/executorch/pytorch/executorch'. No such file or directory
pull / test-models-linux-basic (mv3, xnnpack-quantization-delegation, cmake, linux.2xlarge, executorch-u... / linux-job (gh)
##[error]An error occurred trying to start process '/usr/bin/bash' with working directory '/home/ec2-user/actions-runner/_work/executorch/executorch/pytorch/executorch'. No such file or directory
pull / test-models-linux-basic (vit, portable, buck2, linux.2xlarge, executorch-ubuntu-22.04-clang12) / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID B2A8:B0E22:3F86945:D76B842:6A760B75 and timestamp 2026-08-07 16:44:37 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-models-linux-basic (vit, portable, cmake, linux.2xlarge, executorch-ubuntu-22.04-clang12) / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID B38E:3EF546:4D232BB:1052E5BA:6A760B8C and timestamp 2026-08-07 16:45:00 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-models-linux-basic (vit, xnnpack-quantization-delegation, buck2, linux.2xlarge, executorch-u... / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID 9A7A:35A344:38D07BE:C1A1E27:6A760B98 and timestamp 2026-08-07 16:45:12 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-models-linux-basic (vit, xnnpack-quantization-delegation, cmake, linux.2xlarge, executorch-u... / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID A5DA:13B3C5:82199AF:1B66125C:6A760B94 and timestamp 2026-08-07 16:45:08 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-multimodal-linux (gemma3-4b) / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID 9BC6:37837C:8311E3F:1B8054EA:6A760BA4 and timestamp 2026-08-07 16:45:24 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-qnn-direct-build-linux / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID 9FD0:3BE4F5:82CEB75:1B80A043:6A760BA6 and timestamp 2026-08-07 16:45:26 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-qnn-wheel-packages-linux (3.10) / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID C792:2C3D6C:4C5C1CF:1028B390:6A760B82 and timestamp 2026-08-07 16:44:50 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-qnn-wheel-packages-linux (3.11) / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID AAF2:34E3E2:8993425:1CD8AB89:6A760B87 and timestamp 2026-08-07 16:44:55 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-qnn-wheel-packages-linux (3.12) / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID DD44:1677CB:884D01F:1C791F11:6A760B84 and timestamp 2026-08-07 16:44:52 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-qnn-wheel-packages-linux (3.13) / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID ADBC:28EBC1:4A7D150:FCBA01E:6A760B85 and timestamp 2026-08-07 16:44:53 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-samsung-models-linux / linux-job (gh)
Error: Input required and not supplied: path
pull / test-samsung-quantmodels-linux / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID 9C02:30ED1:49B475F:F9E7171:6A760BCB and timestamp 2026-08-07 16:46:03 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-setup-linux-gcc / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID E99A:2069FC:33CC41F:B0899C7:6A760B71 and timestamp 2026-08-07 16:44:33 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-static-llama-qnn-linux (stories_110m) / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID 8594:3D3924:83D4375:1BCA5623:6A760BD2 and timestamp 2026-08-07 16:46:10 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-voxtral-realtime-xnnpack-linux / linux-job (gh)
##[error]API rate limit exceeded for installation. If you reach out to GitHub Support for help, please include the request ID D482:ADA57:4DEAAE9:10858093:6A760B33 and timestamp 2026-08-07 16:43:31 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service) - https://docs.github.com/en/rest/using-the-rest-api/getting-started-with-the-rest-api#rate-limiting
pull / test-vulkan-models-linux / linux-job (gh)
##[error]An error occurred trying to start process '/usr/bin/bash' with working directory '/home/ec2-user/actions-runner/_work/executorch/executorch/pytorch/executorch'. No such file or directory
pull / test-vulkan-operators-linux / linux-job (gh)
##[error]An error occurred trying to start process '/usr/bin/bash' with working directory '/home/ec2-user/actions-runner/_work/executorch/executorch/pytorch/executorch'. No such file or directory
pull / unittest / macos / macos-job (gh)
##[error]Can't find 'action.yml', 'action.yaml' or 'Dockerfile' under '/Users/ec2-user/runner/_work/executorch/executorch/test-infra/.github/actions/check-disk-space'. Did you forget to run actions/checkout before running your local action?

This comment was automatically generated by Dr. CI and updates every 15 minutes.

github-actions · 2026-07-22T04:12:09Z

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.

To add a label, you can comment to pytorchbot, for example
@pytorchbot label "release notes: none"

For more information, see
https://github.com/pytorch/pytorch/wiki/PyTorch-AutoLabel-Bot#why-categorize-for-release-notes-and-how-does-it-work.

[ghstack-poisoned]

fbsource master [ghstack-poisoned]

Pull Request resolved: #21128 **Centralize dynamic dispatch routing, resize hooks, and workgroup-grid ownership** Quantized-linear and attention optimizations select specialized dispatch ranges from live sequence lengths, but the original handlers duplicated resize bookkeeping and exposed dispatch indices. This change centralizes route coordination and dynamic-grid ownership in `WebGPUGraph`. Key changes: - `WebGPUUtils.h` — register mutually exclusive routes and validate their ranges. - `WebGPUGraph.{h,cpp}` — add typed named resize hooks, descriptor-driven compute construction, graph-owned parameter buffers and dynamic grids, staged grid updates, and exception-safe retry. - `QuantizedLinear.cpp`, `Sdpa.cpp`, and `SdpaFdDecode.{h,cpp}` — select specialized ranges through the shared route registry. - `test_compute_dispatch.cpp` — cover invalid triggers, route overlap, rollback/retry, ownership, and repeated transitions. The route registry is WebGPU-specific. Graph-owned grid recomputation mirrors Vulkan's `DynamicDispatchNode` lifecycle without introducing a Vulkan-style node hierarchy. Co-authored-with: Claude Code. ghstack-source-id: 411961429 @exported-using-ghexport Differential Revision: [D113171748](https://our.internmc.facebook.com/intern/diff/D113171748/)

Update

3a8073e

[ghstack-poisoned]

JCNTH had a problem deploying to cadence July 22, 2026 04:11 — with GitHub Actions Error

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 22, 2026

Update

0619cde

[ghstack-poisoned]

meta-codesync Bot added the meta-exported label Jul 22, 2026

JCNTH temporarily deployed to cadence July 22, 2026 04:24 — with GitHub Actions Inactive

JCNTH temporarily deployed to cadence July 22, 2026 04:49 — with GitHub Actions Inactive

Update

aaa7770

[ghstack-poisoned]

JCNTH temporarily deployed to cadence July 22, 2026 17:33 — with GitHub Actions Inactive

JCNTH had a problem deploying to cadence July 22, 2026 18:09 — with GitHub Actions Error

Update

fabbff4

[ghstack-poisoned]

JCNTH temporarily deployed to cadence July 22, 2026 18:27 — with GitHub Actions Inactive

JCNTH temporarily deployed to cadence July 22, 2026 18:56 — with GitHub Actions Inactive

Update

33f4341

[ghstack-poisoned]

JCNTH requested a review from larryliu0820 as a code owner July 23, 2026 02:11

JCNTH mentioned this pull request Jul 30, 2026

[ExecuTorch][WebGPU] Preserve Linear and Q4 embedding params across dynamic resize #21483

Merged

JCNTH temporarily deployed to cadence July 30, 2026 03:50 — with GitHub Actions Inactive

Update

5ab5473

[ghstack-poisoned]

JCNTH temporarily deployed to cadence July 31, 2026 16:46 — with GitHub Actions Inactive

JCNTH temporarily deployed to cadence July 31, 2026 17:10 — with GitHub Actions Inactive

Update

5aaf3c3

[ghstack-poisoned]

JCNTH temporarily deployed to cadence July 31, 2026 21:21 — with GitHub Actions Inactive

JCNTH temporarily deployed to cadence July 31, 2026 21:51 — with GitHub Actions Inactive

Update

2ca24aa

[ghstack-poisoned]

JCNTH temporarily deployed to cadence August 5, 2026 19:55 — with GitHub Actions Inactive

JCNTH temporarily deployed to cadence August 5, 2026 20:36 — with GitHub Actions Inactive

psiddh approved these changes Aug 7, 2026

View reviewed changes

Rebase onto latest

4147d1f

fbsource master [ghstack-poisoned]

JCNTH temporarily deployed to cadence August 7, 2026 16:36 — with GitHub Actions Inactive

JCNTH temporarily deployed to cadence August 7, 2026 17:00 — with GitHub Actions Inactive

meta-codesync Bot merged commit 6e89ba9 into gh/JCNTH/104/base Aug 7, 2026
135 of 182 checks passed

meta-codesync Bot deleted the gh/JCNTH/104/head branch August 7, 2026 17:20

meta-codesync Bot had a problem deploying to cherry-pick-bot August 7, 2026 17:20 Failure

pytorchbot mentioned this pull request Aug 7, 2026

[ExecuTorch][WebGPU] Coordinate dynamic dispatch routes #21647

Merged

Navigation Menu

Uh oh!

[ExecuTorch][WebGPU] Coordinate dynamic dispatch routes - #21128

[ExecuTorch][WebGPU] Coordinate dynamic dispatch routes#21128
meta-codesync[bot] merged 11 commits into
gh/JCNTH/104/basefrom
gh/JCNTH/104/head

JCNTH commented Jul 22, 2026 •

edited

Loading

Uh oh!

pytorch-bot Bot commented Jul 22, 2026 •

edited

Loading

Uh oh!

github-actions Bot commented Jul 22, 2026

Uh oh!

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

2 participants

Uh oh!

Conversation

JCNTH commented Jul 22, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Uh oh!

pytorch-bot Bot commented Jul 22, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/21128

❌ 46 New Failures, 30 Pending

Uh oh!

github-actions Bot commented Jul 22, 2026

This PR needs a release notes: label

Uh oh!

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

2 participants

JCNTH commented Jul 22, 2026 •

edited

Loading

pytorch-bot Bot commented Jul 22, 2026 •

edited

Loading

This PR needs a `release notes:` label