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https://issues.apache.org/jira/browse/SYSTEMML-2218?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matthias Boehm closed SYSTEMML-2218.
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Resolution: Fixed
Assignee: Matthias Boehm
Fix Version/s: SystemML 1.2
> Avoid unnecessary repartitioning after RDD parallelize
> ------------------------------------------------------
>
> Key: SYSTEMML-2218
> URL: https://issues.apache.org/jira/browse/SYSTEMML-2218
> Project: SystemML
> Issue Type: Sub-task
> Reporter: Matthias Boehm
> Assignee: Matthias Boehm
> Priority: Major
> Fix For: SystemML 1.2
>
>
> There are cases, where spark mapmm instructions to a repartition of the input
> RDD in order to ensure output partition sizes <2GB. If the input originates
> from a RDD parallelize this causes unnecessary shuffle because the
> parallelize could already bring it into the right number of partitions.
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