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From "Matthias Boehm (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (SYSTEMML-1289) Support compressed matrix blocks
Date Wed, 12 Jul 2017 23:14:01 GMT

     [ https://issues.apache.org/jira/browse/SYSTEMML-1289?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Matthias Boehm closed SYSTEMML-1289.
------------------------------------

> Support compressed matrix blocks
> --------------------------------
>
>                 Key: SYSTEMML-1289
>                 URL: https://issues.apache.org/jira/browse/SYSTEMML-1289
>             Project: SystemML
>          Issue Type: Sub-task
>          Components: Compiler, Runtime
>            Reporter: Matthias Boehm
>            Assignee: Matthias Boehm
>             Fix For: SystemML 1.0
>
>
> This task aims to support all fused operator templates over compressed matrix blocks,
without decompression.
> 1) Cellwise and multi-aggregate operator templates (column-wise processing)
> 2) Row-wise operator templates (row decompression)
> 3) Outer-product operator templates (column-wise processing)
> 4) Exploitation of distinct tuples whenever safe to do so.
> 5) Side input handling with partial decompression (e.g., leverage random access of DDC
groups) 



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