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https://issues.apache.org/jira/browse/SYSTEMML-2186?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matthias Boehm resolved SYSTEMML-2186.
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Resolution: Fixed
Assignee: Matthias Boehm
Fix Version/s: SystemML 1.1
> Stratstats performance issues for 1M x 1K due to fallback to cpmm
> -----------------------------------------------------------------
>
> Key: SYSTEMML-2186
> URL: https://issues.apache.org/jira/browse/SYSTEMML-2186
> Project: SystemML
> Issue Type: Sub-task
> Reporter: Matthias Boehm
> Assignee: Matthias Boehm
> Priority: Major
> Fix For: SystemML 1.1
>
>
> This performance issue is primarily due to slow incremental block aggregation
> for certain combinations of sparse and dense combiner, input, and correction
> blocks.
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