WebGPU subgroupsThe subgroups extension for the WebGPU Shading Language (WGSL) enables SIMD parallelism. Using subgroups, threads in a workgroup can efficiently communicate and perform collective operations.webgpuWebGPUlimitedhttps://gpuweb.github.io/gpuweb/#subgroupshttps://gpuweb.github.io/gpuweb/wgsl/#extension-subgroupshttps://developer.mozilla.org/docs/Web/API/GPUSupportedFeaturesapi.GPUSupportedFeatures.feature_subgroupshttps://nowyoucanuse.com/features--webgpu-subgroups.html