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https://issues.apache.org/jira/browse/SPARK-25309?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bryan Cutler updated SPARK-25309:
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    Component/s: ML

> Sci-kit Learn like Auto Pipeline Parallelization in Spark 
> ----------------------------------------------------------
>
>                 Key: SPARK-25309
>                 URL: https://issues.apache.org/jira/browse/SPARK-25309
>             Project: Spark
>          Issue Type: Improvement
>          Components: ML, PySpark
>    Affects Versions: 2.3.1
>            Reporter: Ravi
>            Priority: Critical
>
> SPARK-19357 and SPARK-21911 have helped parallelize Pipelines in Spark. 
> However, instead of setting the parallelism Parameter in the CrossValidator 
> it would be good to have something like njobs=-1 (like Scikit Learn) where 
> the Pipeline DAG could be automatically parallelized and scheduled based on 
> the resources allocated to the Spark Session instead of having the user pick 
> the integer value for this parameter. 



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