Contact emailsalanba...@google.com Explainerhttps://github.com/gpuweb/gpuweb/blob/main/proposals/subgroups.md
Specificationhttps://github.com/gpuweb/gpuweb/pull/4963 Approved by Apple rep, editorial comment by Mozilla rep. Summary Adds subgroup functionality to WebGPU. Subgroup operations perform SIMT operations to provide efficient communication and data sharing among groups of invocations. These operations can be used to accelerate applications by reducing memory overheads incurred by inter-invocation communication. Blink componentBlink>WebGPU <https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3EWebGPU%22> TAG reviewNone TAG review statusNot applicable Origin Trial NameWebGPU Subgroups Features Chromium Trial NameWebGPUSubgroupsFeatures Origin Trial documentation link https://github.com/gpuweb/gpuweb/blob/main/proposals/subgroups.md WebFeature UseCounter namekWebGPUSubgroupsFeatures Risks Interoperability and Compatibility None *Gecko*: No signal *WebKit*: No signal *Web developers*: No signals *Other signals*: Security None. This feature exposes functionality for operations only within a single draw/dispatch. Data is contained within a single users run. 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? None Debuggability No special debugging is available for this feature as it resides solely on the GPU. Will this feature be supported on all six Blink platforms (Windows, Mac, Linux, ChromeOS, Android, and Android WebView)?No Is this feature fully tested by web-platform-tests <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md> ?No Flag name on about://flagsNone Finch feature nameNone Non-finch justificationNone Requires code in //chrome?False Availability expectationBoth Apple and Mozilla have indicated they plan to support this feature in the future. Those implementations are catching up to Chrome in terms of core functionality currently. WebGPU is part of Safari technical previews and Mozilla nightly builds. Adoption expectationThis feature should have wide adoption for specific use cases. It is not expected that all WebGPU shaders would utilize subgroups, but many applications (e.g. ML) could. Non-OSS dependencies Does the feature depend on any code or APIs outside the Chromium open source repository and its open-source dependencies to function? No Estimated milestones Shipping on desktop 134 Origin trial desktop first 128 Origin trial desktop last 131 Origin trial extension 1 end milestone 133 Shipping on Android 134 Origin trial Android first 128 Origin trial Android last 131 Shipping on WebView 134 Origin trial WebView first 128 Origin trial WebView last 131 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). Editorial changes only. Future features are likely to build on top of this extension. Link to entry on the Chrome Platform Status https://chromestatus.com/feature/5126409856221184?gate=5073549680443392 Links to previous Intent discussionsIntent to Experiment: https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CABg%2BrB67gB5gUeDVPaMZ7fZwmeARTUsizs1BTXFXKGpJ%3DpF1TQ%40mail.gmail.com Intent to Extend Experiment 1: https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CABg%2BrB5jfO13yZGBxMAHRgZX_P0qbixCKSK10SujYkBxftujnQ%40mail.gmail.com 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 blink-dev+unsubscr...@chromium.org. To view this discussion visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CABg%2BrB4pbB_BMKd%3D-yAdm3HyfhhuD%2BLh%2BXqnpi1KWLJLW0i%2BCg%40mail.gmail.com.
