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https://issues.apache.org/jira/browse/SYSTEMML-2220?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matthias Boehm closed SYSTEMML-2220.
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Resolution: Fixed
Assignee: Matthias Boehm
Fix Version/s: SystemML 1.2
> Performance ultra-sparse block operations
> -----------------------------------------
>
> Key: SYSTEMML-2220
> URL: https://issues.apache.org/jira/browse/SYSTEMML-2220
> Project: SystemML
> Issue Type: Sub-task
> Reporter: Matthias Boehm
> Assignee: Matthias Boehm
> Priority: Major
> Fix For: SystemML 1.2
>
>
> There are already special cases for ultra-sparse block multiplication for
> selection matrices. This task aims to generalize this to lhs ultra-sparse
> matrices having rows with a single non-zero (with optional scaling).
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