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https://issues.apache.org/jira/browse/HAMA-107?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12650852#action_12650852
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Samuel Guo commented on HAMA-107:
---------------------------------

:-) 

the implementation now is simple and it is a sequence way. 
I suggest to move the blocking method to *mult* operation.
During *mult* we check if the input matrices have been blocked first. if not, 
we block them.

so, we may have 3 map/reduce job in multiplication: two blocking job and a 
multiplication job. we can use a *JobControl* to construct them. And Can 
*JobControl* let the two blocking job go parallely?

> Blocking job should be a map/reduce job
> ---------------------------------------
>
>                 Key: HAMA-107
>                 URL: https://issues.apache.org/jira/browse/HAMA-107
>             Project: Hama
>          Issue Type: Improvement
>          Components: implementation
>            Reporter: Edward J. Yoon
>            Assignee: Samuel Guo
>             Fix For: 0.1.0
>
>         Attachments: HAMA-107.patch, HAMA-107_v02.patch, HAMA-107_v03.patch
>
>
> DenseMatrix.blocking() used for build a blocked dense matrix. But, it should 
> be work on map/reduce to improve speed.

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