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From "Thomas Jungblut (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HAMA-221) A BSP matrix multiplication implementation.
Date Tue, 27 Mar 2012 20:40:27 GMT

    [ https://issues.apache.org/jira/browse/HAMA-221?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13239928#comment-13239928
] 

Thomas Jungblut commented on HAMA-221:
--------------------------------------

Okay if you really want to benchmark it:

https://github.com/thomasjungblut/thomasjungblut-common/blob/master/src/de/jungblut/math/bsp/MatrixMultiplicationBSP.java

I have just extracted my math lib to https://github.com/thomasjungblut/tjungblut-math

You can build it like usually with maven.

What you need though is the VectorWritable class:

https://github.com/thomasjungblut/thomasjungblut-common/blob/master/src/de/jungblut/clustering/model/VectorWritable.java

This should be fine usable with Hama-0.4, Hadoop 20.2 and Java6.
                
> A BSP matrix multiplication implementation.
> -------------------------------------------
>
>                 Key: HAMA-221
>                 URL: https://issues.apache.org/jira/browse/HAMA-221
>             Project: Hama
>          Issue Type: Improvement
>          Components: bsp, matrix
>    Affects Versions: 0.3.0
>            Reporter: Edward J. Yoon
>            Assignee: Thomas Jungblut
>
> Using the BSP model, we could improve the performance of mat-mat multiplication. Let's
evaluation it out on this issue.

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