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https://issues.apache.org/jira/browse/SYSTEMML-2015?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matthias Boehm closed SYSTEMML-2015.
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Resolution: Fixed
Assignee: Matthias Boehm
Fix Version/s: SystemML 1.0
> Performance permutation matrix multiply
> ---------------------------------------
>
> Key: SYSTEMML-2015
> URL: https://issues.apache.org/jira/browse/SYSTEMML-2015
> Project: SystemML
> Issue Type: Task
> Reporter: Matthias Boehm
> Assignee: Matthias Boehm
> Fix For: SystemML 1.0
>
>
> The SystemML compiler usually tries to eliminate unnecessary permutation
> matrix multiplications. However, whenever this is not possible, there are a
> couple of unnecessary overheads related to diag, removeEmpty that this task
> aims to address.
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