[jira] [Assigned] (SPARK-26514) Introduce a new conf to improve the task parallelism

["Apache Spark (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-26514?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-26514:
------------------------------------

    Assignee:     (was: Apache Spark)

> Introduce a new conf to improve the task parallelism
> ----------------------------------------------------
>
>                 Key: SPARK-26514
>                 URL: https://issues.apache.org/jira/browse/SPARK-26514
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core
>    Affects Versions: 2.1.0, 2.4.0
>            Reporter: zhoukang
>            Priority: Major
>
> Currently, we have a conf below.
> {code:java}
> private[spark] val CPUS_PER_TASK = ConfigBuilder("spark.task.cpus").intConf.createWithDefault(1)
> {code}
> For some applications which are not cpu-intensive,we may want to let one cpu to run more than one task.
> Like:
> {code:java}
> private[spark] val TASKS_PER_CPU = ConfigBuilder("spark.cpu.tasks").intConf.createWithDefault(1)
> {code}
> Which can improve performance for some applications and can also improve resource utilization



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