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From "Edward J. Yoon (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HAMA-153) Need some condition-check before matrix algebra
Date Wed, 18 Feb 2009 07:53:01 GMT

    [ https://issues.apache.org/jira/browse/HAMA-153?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12674506#action_12674506
] 

Edward J. Yoon commented on HAMA-153:
-------------------------------------

It'll need a test case.

TestDenseMatrix.testSetRow/Column() will increase the size of row/column. 


> Need some condition-check before matrix algebra
> -----------------------------------------------
>
>                 Key: HAMA-153
>                 URL: https://issues.apache.org/jira/browse/HAMA-153
>             Project: Hama
>          Issue Type: Bug
>          Components: implementation
>            Reporter: Samuel Guo
>            Priority: Minor
>         Attachments: HAMA-153.patch
>
>
> some conditions will be checked before we construct the result matrix and compose the
matrix algebra map/reduce job.
> for examples,
> A + B, we need check that A.rows = B.rows & A.columns = B.columns
> A * B, we need check that A.columns = B.rows.

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