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Posted to issues@systemml.apache.org by "Matthias Boehm (JIRA)" <ji...@apache.org> on 2017/06/20 07:23:00 UTC

[jira] [Created] (SYSTEMML-1725) Full aggregation support in rowwise templates

Matthias Boehm created SYSTEMML-1725:
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             Summary: Full aggregation support in rowwise templates
                 Key: SYSTEMML-1725
                 URL: https://issues.apache.org/jira/browse/SYSTEMML-1725
             Project: SystemML
          Issue Type: Sub-task
            Reporter: Matthias Boehm


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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