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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2022/04/01 17:22:17 UTC

[GitHub] [arrow-rs] alamb edited a comment on issue #54: packed_simd requires nightly

alamb edited a comment on issue #54:
URL: https://github.com/apache/arrow-rs/issues/54#issuecomment-1086158249


   > I'd be surprised if the non SIMD performance was quite as good, but hey all power to it.....
   
   I don't think 'non SIMD' is quite accurate -- it is more like "Clang produced (auto vectorized) SIMD" where the compiler generates the SIMD instructions 
   
   @jhorstmann  did some work that showed several kernels were actually faster using autovectorized code: https://github.com/apache/arrow-rs/pull/1221
   
   I believe @jorgecarleitao  did some work in arrow2 to migrate it away from using `packed_simd` (and thus no longer require nightly rust): https://github.com/jorgecarleitao/arrow2/pull/747


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