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Posted to issues@systemml.apache.org by "Matthias Boehm (JIRA)" <ji...@apache.org> on 2017/12/31 06:55:00 UTC

[jira] [Closed] (SYSTEMML-2053) Dense-sparse conversion to CSR might overrun max number of nnz

     [ https://issues.apache.org/jira/browse/SYSTEMML-2053?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matthias Boehm closed SYSTEMML-2053.
------------------------------------
       Resolution: Fixed
         Assignee: Matthias Boehm
    Fix Version/s: SystemML 1.1

> Dense-sparse conversion to CSR might overrun max number of nnz
> --------------------------------------------------------------
>
>                 Key: SYSTEMML-2053
>                 URL: https://issues.apache.org/jira/browse/SYSTEMML-2053
>             Project: SystemML
>          Issue Type: Bug
>            Reporter: Matthias Boehm
>            Assignee: Matthias Boehm
>             Fix For: SystemML 1.1
>
>
> With the introduction of large dense blocks >16GB, the memory-efficient dense-sparse conversion into CSR format might overrun the maximum number of nnz. We should conditionally fall back MCSR if the number of non-zeros is larger than 2^32.



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