Add WebGPU backend for portable GPU acceleration#4

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robtaylor wants to merge 27 commits intometal-backendfrom

Commits on Jan 3, 2026

Commits on Jan 4, 2026

Improve WebGPU CI: prefetch and cache Dawn separately

robtaylor
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claude
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Add X11 development libraries for Dawn/GLFW in WebGPU CI

robtaylor
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claude
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Add OpenGL and xkbcommon libs for Dawn/GLFW in WebGPU CI

robtaylor
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claude
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Suppress noisy Dawn warnings in WebGPU CI build

robtaylor
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claude
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Use complete GCC warning suppression flags for Dawn build

robtaylor
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claude
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Add libx11-xcb-dev for Dawn Xlib-xcb.h header

robtaylor
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claude
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Disable Dawn -Werror in CMakeLists.txt for GCC compatibility

robtaylor
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claude
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Fix Dawn API compatibility and Eigen LLT issues

robtaylor
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Fix WebGPU code for Dawn API and Eigen compatibility

robtaylor
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Revert to polling-based Dawn API for chromium/6904 compatibility

robtaylor
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claude
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Use Dawn RequestAdapterCallbackInfo/RequestDeviceCallbackInfo API

robtaylor
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claude
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Fix Eigen const map triangular solve issues

robtaylor
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claude
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Fix Eigen triangular solve by copying to mutable ColMajor matrices

robtaylor
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claude
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Add WebGPU benchmarking support to Bench.cpp

robtaylor
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claude
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Add benchmark reporting to CI for all backends
robtaylor
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Add 10000 param benchmark and document Metal backend GPU strategy
robtaylor
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Metal backend: run entirely on GPU with command buffer batching
robtaylor
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Commits on Jan 6, 2026