[ExecuTorch][WebGPU] Add 256-thread "steel" q4gsw prefill GEMM#20815

Merged

JCNTH merged 11 commits into

gh/JCNTH/3/origfrom

gh/JCNTH/4/orig

Jul 9, 2026

Commits on Jul 9, 2026

[ExecuTorch][WebGPU] Add 256-thread "steel" q4gsw prefill GEMM
JCNTH
committed
[ExecuTorch][WebGPU] Steel q4gsw prefill GEMM — test coverage
JCNTH
committed
[ExecuTorch][WebGPU] Add f16-multiply variant of the steel q4gsw prefill GEMM
JCNTH
committed
[ExecuTorch][WebGPU] Test coverage for the f16-multiply steel q4gsw GEMM
JCNTH
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[ExecuTorch][WebGPU] Add opt-in native f16 KV cache (−280 MiB, default-OFF)
JCNTH
committed
[ExecuTorch][WebGPU] Test coverage for the f16 KV cache
JCNTH
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[ExecuTorch][WebGPU] Reuse pool for single-op scratch (-86.7 MiB)
JCNTH
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[ExecuTorch][WebGPU] Packed-word-dequant f16 steel q4gsw prefill GEMM
JCNTH
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[ExecuTorch][WebGPU] Test coverage for the packed-word-dequant f16 steel GEMM
JCNTH
committed
[ExecuTorch][WebGPU] f16-accumulate (pwdqf16acc) steel q4gsw prefill GEMM
JCNTH
committed
[ExecuTorch][WebGPU] Test coverage for the f16-accumulate steel GEMM
JCNTH
committed