pytorch / pytorch/executorch

which clang source of bf16 GEMM kernel

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module: kernels
Dominant language
Python
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Description

Which source path called for BF16 GEMM kernel(vbfdotq_f32)?

  1. system clang path: /usr/lib/llvm-14/lib/clang/14.0.0/include/arm_neon.h
  2. clang of android ndk path: /android-ndk-r27c/toolchains/llvm/prebuilt/linux-x86_64/lib/clang/18/include/arm_neon.h

cc @larryliu0820 @manuelcandales

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First steps

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  3. Fork the repository and make your change on a branch.
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Research direction

Start by tracing the vbfdotq_f32 BF16 GEMM kernel and compare the two arm_neon.h paths named in the issue: the system Clang 14 header and the Android NDK r27 Clang 18 header. Inspect the relevant toolchain selection and establish which header is used; done means the selected source path is identified and documented.

Written by the indexing model from the issue text.

Assessment

Tech stack
android
Domain
build-system, embedded-iot, machine-learning
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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