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Posted to issues@arrow.apache.org by "Wes McKinney (JIRA)" <ji...@apache.org> on 2018/02/11 21:32:00 UTC

[jira] [Commented] (ARROW-2126) [Plasma] Hashing for GPU objects

    [ https://issues.apache.org/jira/browse/ARROW-2126?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16360137#comment-16360137 ] 

Wes McKinney commented on ARROW-2126:
-------------------------------------

Should definitely have a CUDA kernel for hashing in {{arrow_gpu}}, it can be wrapped as a kernel to be applied on {{BinaryArray}} data later

> [Plasma] Hashing for GPU objects
> --------------------------------
>
>                 Key: ARROW-2126
>                 URL: https://issues.apache.org/jira/browse/ARROW-2126
>             Project: Apache Arrow
>          Issue Type: Improvement
>            Reporter: Philipp Moritz
>            Priority: Major
>
> We should have a CUDA function that computes a hash for objects, similar to the way it is done for CPU objects at the moment. Is there a fast hash/checksum function available for CUDA, similar to xxhash? Maybe this can be implemented as a arrow::compute kernel?



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