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https://issues.apache.org/jira/browse/SYSTEMML-1591?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matthias Boehm resolved SYSTEMML-1591.
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Resolution: Done
Assignee: Matthias Boehm
Fix Version/s: (was: SystemML 0.14)
SystemML 1.0
> Improve efficiency sparse-unsafe cellwise operations
> ----------------------------------------------------
>
> Key: SYSTEMML-1591
> URL: https://issues.apache.org/jira/browse/SYSTEMML-1591
> Project: SystemML
> Issue Type: Sub-task
> Components: Compiler, Runtime
> Reporter: Matthias Boehm
> Assignee: Matthias Boehm
> Fix For: SystemML 1.0
>
>
> For sparse-unsafe cellwise operations, we currently iterate over all cells
> and use binary search to access the individual values. This is unnecessarily
> inefficient to should be reworked in favor of a sequential scan with gap
> handling, which would also allow us to consolidate the different code paths
> for sparse-safe and -unsafe operations.
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