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Posted to dev@mahout.apache.org by "Dmitriy Lyubimov (JIRA)" <ji...@apache.org> on 2015/06/08 22:56:00 UTC

[jira] [Updated] (MAHOUT-1732) Native support for kryo serialization of tensor types.

     [ https://issues.apache.org/jira/browse/MAHOUT-1732?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dmitriy Lyubimov updated MAHOUT-1732:
-------------------------------------
    Status: Patch Available  (was: Open)

> Native support for kryo serialization of tensor types.
> ------------------------------------------------------
>
>                 Key: MAHOUT-1732
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-1732
>             Project: Mahout
>          Issue Type: Improvement
>            Reporter: Dmitriy Lyubimov
>            Assignee: Dmitriy Lyubimov
>             Fix For: 0.10.2
>
>
> Right now, the serialization of tensor types (matrix, vector) is double-bridged thru VectorWritable and MatrixWritable.
> a new writeup of kryo serializers in this issue provides direct support for serializing vector and matrix types (also accounting for their structural flavors). 
> This is a first rewrite, so improvements probably could be provided, but i so far have not found this to become a visible bottleneck again over other spark io costs.
> https://github.com/apache/mahout/pull/135



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