[jira] [Resolved] (SPARK-5486) Add validate function for BlockMatrix

["Xiangrui Meng (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-5486?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Xiangrui Meng resolved SPARK-5486.
----------------------------------
       Resolution: Fixed
    Fix Version/s: 1.3.0

Issue resolved by pull request 4279
[https://github.com/apache/spark/pull/4279]

> Add validate function for BlockMatrix
> -------------------------------------
>
>                 Key: SPARK-5486
>                 URL: https://issues.apache.org/jira/browse/SPARK-5486
>             Project: Spark
>          Issue Type: New Feature
>          Components: MLlib
>            Reporter: Burak Yavuz
>             Fix For: 1.3.0
>
>
> BlockMatrix needs a validate method to make debugging easy for users. 
> It will be an expensive method to perform, but it would be useful for users to know why `multiply` or `add` didn't work properly.
> Things to validate:
> - MatrixBlocks that are not on the edges should have the dimensions `rowsPerBlock` and `colsPerBlock`.
> - There should be at most one block for each index



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