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From "Edward J. Yoon (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HAMA-524) [GSoC 2012] Sparse Matrix-Vector multiplication (SpMV) on Hama
Date Wed, 18 Jul 2012 06:30:42 GMT

    [ https://issues.apache.org/jira/browse/HAMA-524?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13416902#comment-13416902
] 

Edward J. Yoon commented on HAMA-524:
-------------------------------------

Hey Mikalai, 

I looked at your code closely today. Please delete all unnecessary classes and try to rewrite
SpMV and SpMVTest programs.

{code}
  /**
   * Simple test.
   * multiplying
   *  [1 0 6 0]      [2]    [38]
   *  [0 4 0 0]  *   [3] =  [12]
   *  [0 2 3 0]      [6]    [24]
   *  [3 0 0 5]      [1]    [11]
   */
  //@Test
  public void testSpMVBasic() {
     Path m = generateRandomMatrix(); // 1. generate 4x4 matrix
     Path v = generateRandomMatrix(); // 2. generate 4x1 matrix (column vector)

     SpMV.main(m, v, TMP_OUT); // 2. job configuration

     verifyResult(TMP_OUT);
  }
{code}
                
> [GSoC 2012] Sparse Matrix-Vector multiplication (SpMV) on Hama
> --------------------------------------------------------------
>
>                 Key: HAMA-524
>                 URL: https://issues.apache.org/jira/browse/HAMA-524
>             Project: Hama
>          Issue Type: New Feature
>          Components: bsp core, examples, math
>            Reporter: Edward J. Yoon
>            Assignee: Mikalai Parafeniuk
>              Labels: gsoc, gsoc2012, newbie
>
> Implement Efficient and Fast SpMV algorithm which can be widely used in scientiļ¬c computing,
financial modeling, information retrieval, and others, using Hama Bulk Synchronous Parallel
framework.

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