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https://issues.apache.org/jira/browse/SPARK-5748?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiangrui Meng updated SPARK-5748:
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Description: Saw some regression of k-means in 1.3 performance tests. I
think the problem is the sqdist implementation is slow but not very sure.
(was: Saw some regression of k-means in 1.3 performance tests. I think the
problem is the sqdist implementation for dense vectors are slow.)
> Improve Vectors.sqdist implementation
> -------------------------------------
>
> Key: SPARK-5748
> URL: https://issues.apache.org/jira/browse/SPARK-5748
> Project: Spark
> Issue Type: Improvement
> Components: MLlib
> Affects Versions: 1.3.0
> Reporter: Xiangrui Meng
> Assignee: Xiangrui Meng
>
> Saw some regression of k-means in 1.3 performance tests. I think the problem
> is the sqdist implementation is slow but not very sure.
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