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The previous matmul is using 1-dimensional shared array. This PR adds the 2-dimensional shared array. The perf result shows that: 1. For 1-dimensional shared array, enabe-robustness wil bring almost 2x regression both for matmulFloat and matmulVec4 on Intel CFL. 2. For 2-dimensional shared array, enabe-robustness will bring almost 2x regression on matmulFloat. But have little impact on matmulVec4 on Intel CFL. Tested on Intel_R_UHD_Graphics_630. shader enable robustness disable robustness MatMulFloatOneDimSharedArray 5383 us 3105 us MatMulFloatTwoDimSharedArray 4788 us 2608 us MatMulVec4OneDimSharedArray 3070 us 1743 us MatMulVec4TwoDimSharedArray 1840 us 1802 us Bug: dawn:594 Change-Id: Ia29a78cf70649ef8d3ba8476db1ad4d6ded80840 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/50481 Reviewed-by: Jiawei Shao <jiawei.shao@intel.com> Reviewed-by: Austin Eng <enga@chromium.org> Commit-Queue: Jiajia Qin <jiajia.qin@intel.com>
Dawn, a WebGPU implementation
Dawn is an open-source and cross-platform implementation of the work-in-progress WebGPU standard.
More precisely it implements webgpu.h that is a one-to-one mapping with the WebGPU IDL.
Dawn is meant to be integrated as part of a larger system and is the underlying implementation of WebGPU in Chromium.
Dawn provides several WebGPU building blocks:
- WebGPU C/C++ headers that applications and other building blocks use.
- The
webgpu.hversion that Dawn implements. - A C++ wrapper for the
webgpu.h.
- The
- A "native" implementation of WebGPU using platforms' GPU APIs:
- D3D12 on Windows 10
- Metal on macOS and iOS
- Vulkan on Windows, Linux, ChromeOS, Android and Fuchsia
- OpenGL as best effort where available
- A client-server implementation of WebGPU for applications that are in a sandbox without access to native drivers
Helpful links:
- Dawn's bug tracker if you find issues with Dawn.
- Dawn's mailing list for other discussions related to Dawn.
- Dawn's source code
- Dawn's Matrix chatroom for live discussion around contributing or using Dawn.
- WebGPU's Matrix chatroom
Documentation table of content
Developer documentation:
User documentation: (TODO, figure out what overlaps with the webgpu.h docs)
Status
(TODO)
License
Apache 2.0 Public License, please see LICENSE.
Disclaimer
This is not an officially supported Google product.