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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2020/02/13 17:06:15 UTC

[GitHub] [spark] mengxr commented on issue #27546: [SPARK-30773][ML]Support NativeBlas for level-1 routines

mengxr commented on issue #27546: [SPARK-30773][ML]Support NativeBlas for level-1 routines
URL: https://github.com/apache/spark/pull/27546#issuecomment-585864274
 
 
   Could you provide reproducible microbenchmark results for both OpenBLAS and MKL on arrays of different sizes? Last time we tested it it didn't help. But that was years ago.
   
   Note that JVM also improved SIMD. We should also check whether we can improve along that direction.

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