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Posted to issues@systemml.apache.org by "Matthias Boehm (JIRA)" <ji...@apache.org> on 2017/09/08 19:32:00 UTC
[jira] [Resolved] (SYSTEMML-1885) Slow codegen sparse-safe
aggregates over compressed data
[ https://issues.apache.org/jira/browse/SYSTEMML-1885?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Matthias Boehm resolved SYSTEMML-1885.
--------------------------------------
Resolution: Fixed
Assignee: Matthias Boehm
Fix Version/s: SystemML 0.15
> Slow codegen sparse-safe aggregates over compressed data
> --------------------------------------------------------
>
> Key: SYSTEMML-1885
> URL: https://issues.apache.org/jira/browse/SYSTEMML-1885
> Project: SystemML
> Issue Type: Bug
> Reporter: Matthias Boehm
> Assignee: Matthias Boehm
> Fix For: SystemML 0.15
>
>
> The codegen cell template does not yet exploit the ability to perform sparse-safe unary operations purely over the value tuples of compressed matrices, which leads to significant slowdowns of orders of magnitude.
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