You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@spark.apache.org by "WuZeyi (Jira)" <ji...@apache.org> on 2019/10/22 11:22:00 UTC

[jira] [Created] (SPARK-29553) This problemis about using native BLAS to improvement ML/MLLIB performance

WuZeyi created SPARK-29553:
------------------------------

             Summary: This problemis about using native BLAS to improvement ML/MLLIB performance
                 Key: SPARK-29553
                 URL: https://issues.apache.org/jira/browse/SPARK-29553
             Project: Spark
          Issue Type: Improvement
          Components: ML, MLlib
    Affects Versions: 2.4.4, 2.3.0
            Reporter: WuZeyi


I use {color:#FF0000}native BLAS{color} to improvement ML/MLLIB performance on Yarn.

The file {color:#FF0000}spark-env.sh{color} which is modified by [SPARK-21305] said that I should set {color:#FF0000}OPENBLAS_NUM_THREADS=1{color} to disable multi-threading of OpenBLAS, but it does not take effect.

I modify {color:#FF0000}spark.conf{color} to set  OPENBLAS_NUM_THREADS=1，and the performance improve.
 
 
I think MKL_NUM_THREADS is the same.
 



--
This message was sent by Atlassian Jira
(v8.3.4#803005)

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org