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Posted to issues@arrow.apache.org by "Philipp Moritz (JIRA)" <ji...@apache.org> on 2017/09/04 05:59:00 UTC

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

Philipp Moritz created ARROW-1457:
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             Summary: [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


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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