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From "Matthias Boehm (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SYSTEMML-2053) Dense-sparse conversion to CSR might overrun max number of nnz
Date Sat, 30 Dec 2017 02:30:00 GMT

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

Matthias Boehm updated SYSTEMML-2053:
-------------------------------------
    Description: 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.

> 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
>
> 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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