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From "Glenn Weidner (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SYSTEMML-1725) Full aggregation support in rowwise templates
Date Sat, 09 Sep 2017 01:52:00 GMT

     [ https://issues.apache.org/jira/browse/SYSTEMML-1725?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Glenn Weidner updated SYSTEMML-1725:
------------------------------------
    Fix Version/s:     (was: SystemML 1.0)
                   SystemML 0.15

> Full aggregation support in rowwise templates
> ---------------------------------------------
>
>                 Key: SYSTEMML-1725
>                 URL: https://issues.apache.org/jira/browse/SYSTEMML-1725
>             Project: SystemML
>          Issue Type: Sub-task
>          Components: Compiler, Runtime
>            Reporter: Matthias Boehm
>            Assignee: Matthias Boehm
>             Fix For: SystemML 0.15
>
>
> There are a number of scripts such as Mlogreg, where we currently compile a sequence
of row-wise and cell-wise templates because expressions consist of (1) various row aggregations,
and (2) some additional cellwise operations with final full aggregate. This creates unnecessary
intermediates and partially redundant computation. Hence, we should directly support full
aggregations (at least sum) in rowwise templates as well.



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