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Posted to issues@systemml.apache.org by "Matthias Boehm (JIRA)" <ji...@apache.org> on 2017/12/09 01:36:00 UTC

[jira] [Closed] (SYSTEMML-2038) Dense-sparse block conversions into memory-efficient CSR

     [ https://issues.apache.org/jira/browse/SYSTEMML-2038?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matthias Boehm closed SYSTEMML-2038.
------------------------------------
       Resolution: Fixed
         Assignee: Matthias Boehm
    Fix Version/s: SystemML 1.0

> Dense-sparse block conversions into memory-efficient CSR
> --------------------------------------------------------
>
>                 Key: SYSTEMML-2038
>                 URL: https://issues.apache.org/jira/browse/SYSTEMML-2038
>             Project: SystemML
>          Issue Type: Task
>            Reporter: Matthias Boehm
>            Assignee: Matthias Boehm
>             Fix For: SystemML 1.0
>
>
> The sparse-dense matrix block conversion currently allocates the output in the default sparse representation, which is MCSR. However, this primitive knows the number of non-zeros upfront and hence can produce the output in CSR which is much more memory efficient.



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