LGTM1 On Wednesday, June 24, 2026 at 1:37:02 AM UTC-7 Chromestatus wrote:
> *Contact emails* > [email protected] > > *Explainer* > *No information provided* > > *Specification* > https://github.com/gpuweb/gpuweb/pull/5578 > > *Summary* > Adds the optional GPU feature "subgroup-size-control" that allows > explicitly setting the subgroup size in a compute shader. This technique is > particularly useful for the applications that need to optimize the > performance of the compute shader using subgroup operations with specifc > subgroup size on certain platforms, such as the AI workloads. > > *Blink component* > Blink>WebGPU > <https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3EWebGPU%22> > > *Web Feature ID* > Missing feature > > *Motivation* > Adds the optional GPU feature "subgroup-size-control" that allows > explicitly setting the subgroup size in a compute shader. This technique is > particularly useful for the applications that need to optimize the > performance of the compute shader using subgroup operations with specifc > subgroup size on certain platforms, such as the AI workloads. > > *Initial public proposal* > *No information provided* > > *TAG review* > *No information provided* > > *TAG review status* > Pending > > *Goals for experimentation* > None > > *Risks* > > > *Interoperability and Compatibility* > This feature has been approved in W3C GPU for the Web WG meetings > including participants from Safari and Firefox: > https://github.com/gpuweb/gpuweb/wiki/GPU-Web-2026%E2%80%9006%E2%80%9023-WGSL#add-extension-subgroup-size-control-5578 > > > *Gecko*: Positive (https://github.com/gpuweb/gpuweb/pull/5578) "Feedback > indicated via WebGPU standardization process." > > *WebKit*: Positive (https://github.com/gpuweb/gpuweb/pull/5578) > "Specification > approval constitutes a positive signal, per > https://github.com/WebKit/standards-positions/issues/294#issuecomment-1877411933"; > > *Web developers*: No signals > > *Other signals*: > > *WebView application risks* > > Does this intent deprecate or change behavior of existing APIs, such that > it has potentially high risk for Android WebView-based applications? > *No information provided* > > > *Debuggability* > *No information provided* > > *Will this feature be supported on all six Blink platforms (Windows, Mac, > Linux, ChromeOS, Android, and Android WebView)?* > No > Will immediately be available on Android, Android WebView, ChromeOS, Linux > and Windows, where hardware support is available. > > *Is this feature fully tested by web-platform-tests > <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?* > Yes > WebGPU/WGSL have a conformance test suite (https://github.com/gpuweb/cts) > that is regularly pulled into Chromium and part of the testing of Dawn/Tint > in Chromium. While the CTS can be embedded in WPT, the WebGPU team opted to > keep it separate in Chromium testing to use a customized harness for > robustness and performance: https://github.com/gpuweb/cts/issues/4640 > > *Flag name on about://flags* > *No information provided* > > *Finch feature name* > *No information provided* > > *Non-finch justification* > *No information provided* > > *Rollout plan* > Will ship enabled for all users > > *Requires code in //chrome?* > False > > *Tracking bug* > https://issues.chromium.org/issues/463721943 > > *Estimated milestones* > > No milestones specified > > > *Anticipated spec changes* > > Open questions about a feature may be a source of future web compat or > interop issues. Please list open issues (e.g. links to known github issues > in the project for the feature specification) whose resolution may > introduce web compat/interop risk (e.g., changing to naming or structure of > the API in a non-backward-compatible way). > *No information provided* > > *Link to entry on the Chrome Platform Status* > https://chromestatus.com/feature/5077657663438848?gate=6732991276646400 > > This intent message was generated by Chrome Platform Status > <https://chromestatus.com>. > -- You received this message because you are subscribed to the Google Groups "blink-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/82728a9c-a542-4e7f-81ad-0f4eb955915an%40chromium.org.
