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Posted to issues@arrow.apache.org by "Wes McKinney (JIRA)" <ji...@apache.org> on 2017/09/14 20:17:00 UTC

[jira] [Updated] (ARROW-1457) [C++] Optimize strided WriteTensor

     [ https://issues.apache.org/jira/browse/ARROW-1457?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wes McKinney updated ARROW-1457:
--------------------------------
    Fix Version/s: 0.7.0

> [C++] Optimize strided WriteTensor
> ----------------------------------
>
>                 Key: ARROW-1457
>                 URL: https://issues.apache.org/jira/browse/ARROW-1457
>             Project: Apache Arrow
>          Issue Type: Bug
>            Reporter: Philipp Moritz
>             Fix For: 0.7.0
>
>
> At the moment, if we call WriteTensor on a strided Tensor, it will write the tensor element by element; this can be optimized by combining multiple consecutive writes together.
> If there are long stretches of contiguous data, this might even be able to take advantage of the multithreaded memory copy we have int the FixedSizeBufferWriter.



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