wjones127 commented on issue #40333: URL: https://github.com/apache/arrow/issues/40333#issuecomment-1977121154
> Perhaps we can find a way to better explain / document these variables? It seems like the only thing that is missing from the docs at https://arrow.apache.org/docs/cpp/env_vars.html#envvar-ARROW_USER_SIMD_LEVEL is an explanation of what `ARROW_RUNTIME_SIMD_LEVEL` does and why one would use it. Perhaps something like: > In addition to `ARROW_SIMD_LEVEL` there is another CMake flag `ARROW_RUNTIME_SIMD_LEVEL`. This controls the maximum runtime-selectable SIMD path that is compiled. For example, if set to `AVX2` on x86, then all `AVX512` code paths with be omitted from the compiled code. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
