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https://issues.apache.org/jira/browse/SPARK-30560?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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t oo updated SPARK-30560:
-------------------------
    Description: 
see 
https://stackoverflow.com/questions/56781927/apache-spark-standalone-scheduler-why-does-driver-need-a-whole-core-in-cluste

this is to make it possible for a driver to use 0.2 cores rather than a whole 
core

Standard CPUs, no GPUs

  was:
see 
https://stackoverflow.com/questions/56781927/apache-spark-standalone-scheduler-why-does-driver-need-a-whole-core-in-cluste

this is to make it possible for a driver to use 0.2 cores rather than a whole 
core


> allow driver to consume a fractional core
> -----------------------------------------
>
>                 Key: SPARK-30560
>                 URL: https://issues.apache.org/jira/browse/SPARK-30560
>             Project: Spark
>          Issue Type: Improvement
>          Components: Scheduler
>    Affects Versions: 2.4.4
>            Reporter: t oo
>            Priority: Minor
>
> see 
> https://stackoverflow.com/questions/56781927/apache-spark-standalone-scheduler-why-does-driver-need-a-whole-core-in-cluste
> this is to make it possible for a driver to use 0.2 cores rather than a whole 
> core
> Standard CPUs, no GPUs



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