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From "Dmitriy Lyubimov (JIRA)" <>
Subject [jira] [Updated] (MAHOUT-1732) Native support for kryo serialization of tensor types.
Date Mon, 08 Jun 2015 20:56:00 GMT


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

> Native support for kryo serialization of tensor types.
> ------------------------------------------------------
>                 Key: MAHOUT-1732
>                 URL:
>             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.

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