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Posted to issues@systemml.apache.org by "Matthias Boehm (JIRA)" <ji...@apache.org> on 2017/09/16 02:23:01 UTC

[jira] [Updated] (SYSTEMML-1915) Increase default block size to 2048

     [ https://issues.apache.org/jira/browse/SYSTEMML-1915?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matthias Boehm updated SYSTEMML-1915:
-------------------------------------
    Summary: Increase default block size to 2048  (was: Increase default block size)

> Increase default block size to 2048
> -----------------------------------
>
>                 Key: SYSTEMML-1915
>                 URL: https://issues.apache.org/jira/browse/SYSTEMML-1915
>             Project: SystemML
>          Issue Type: Sub-task
>            Reporter: Matthias Boehm
>
> So far we use a default blocksize of 1000 x 1000. This task aims to increase the default blocksize to 2048 x 2048 in order to increase the default compression potential. 
> Other advantages are reducing partial aggregation, increasing the applicability of physical operators with blocksize constraints, and reducing the overhead for ultra-sparse matrices.



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