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From "Thomas Jungblut (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HAMA-221) A BSP matrix multiplication implementation.
Date Fri, 16 Mar 2012 10:33:41 GMT

    [ https://issues.apache.org/jira/browse/HAMA-221?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13231034#comment-13231034
] 

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

After seeing this:
http://stackoverflow.com/questions/9708427/hadoop-matrix-multiplication

I guess we should get a first scratch implementation based on this MPI version:
http://sushpa.wordpress.com/2008/05/20/simple-matrix-multiplication-on-mpi/

It's quite easy, the first matrix A must be row-partitioned and the second matrix must be
available in every peer.
                
> 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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