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Posted to issues@systemml.apache.org by "Glenn Weidner (JIRA)" <ji...@apache.org> on 2017/09/09 04:14:00 UTC

[jira] [Updated] (SYSTEMML-1538) Improved dynamic recompilation (size update after rewrites)

     [ https://issues.apache.org/jira/browse/SYSTEMML-1538?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Glenn Weidner updated SYSTEMML-1538:
------------------------------------
    Fix Version/s:     (was: SystemML 1.0)
                   SystemML 0.15

> Improved dynamic recompilation (size update after rewrites)
> -----------------------------------------------------------
>
>                 Key: SYSTEMML-1538
>                 URL: https://issues.apache.org/jira/browse/SYSTEMML-1538
>             Project: SystemML
>          Issue Type: Sub-task
>          Components: Compiler
>            Reporter: Matthias Boehm
>            Assignee: Matthias Boehm
>             Fix For: SystemML 0.15
>
>
> Dynamic recompilation currently first updates matrix characteristics and subsequently applied dynamic rewrites and operator selection which depend on the updates stats. However, there are various scenarios where applied rewrites simplify the propagation of statistics. Hence, we should additionally update statistics after rewrites in order to increase the potential of subsequent operator selection and code generation.



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