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Posted to issues@systemml.apache.org by "Matthias Boehm (JIRA)" <ji...@apache.org> on 2017/08/16 18:05:00 UTC

[jira] [Closed] (SYSTEMML-1841) Performance issue codegen outer over ultra-sparse matrices

     [ https://issues.apache.org/jira/browse/SYSTEMML-1841?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matthias Boehm closed SYSTEMML-1841.
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> Performance issue codegen outer over ultra-sparse matrices
> ----------------------------------------------------------
>
>                 Key: SYSTEMML-1841
>                 URL: https://issues.apache.org/jira/browse/SYSTEMML-1841
>             Project: SystemML
>          Issue Type: Bug
>            Reporter: Matthias Boehm
>            Assignee: Matthias Boehm
>             Fix For: SystemML 1.0
>
>
> Experiments with codegen outer operations over the Amazon Books review dataset (8,026,324 x 2,330,066, nnz=22,507,155, i.e., sparsity=10^(-6)) showed unnecessary overhead for this ultra-sparse data set. This task aims to remove this overhead.



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