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From "Apache Spark (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-4797) Replace breezeSquaredDistance
Date Wed, 11 Mar 2015 21:11:43 GMT

    [ https://issues.apache.org/jira/browse/SPARK-4797?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14357617#comment-14357617
] 

Apache Spark commented on SPARK-4797:
-------------------------------------

User 'mengxr' has created a pull request for this issue:
https://github.com/apache/spark/pull/4985

> Replace breezeSquaredDistance
> -----------------------------
>
>                 Key: SPARK-4797
>                 URL: https://issues.apache.org/jira/browse/SPARK-4797
>             Project: Spark
>          Issue Type: Improvement
>            Reporter: Liang-Chi Hsieh
>            Assignee: Liang-Chi Hsieh
>            Priority: Minor
>             Fix For: 1.3.0
>
>
> This PR replaces slow breezeSquaredDistance. A simple calculation involving 40000 squared
distances between the vectors of 20000 dims shows:
> * breezeSquaredDistance: ~12 secs
> * This PR: ~10.5 secs



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