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Date: Tue, 8 May 2012 00:29:59 +0000 (UTC)
From: "Edward J. Yoon (JIRA)" <jira@apache.org>
To: hama-dev@incubator.apache.org
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Subject: [jira] [Commented] (HAMA-556) Graph package to support stopping the
 interations when the node changes are within the tolerance value as in the
 case of page rank
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    [ https://issues.apache.org/jira/browse/HAMA-556?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13270107#comment-13270107 ] 

Edward J. Yoon commented on HAMA-556:
-------------------------------------

Looks good to me.
I'd like to commit this to TRUNK. What do you think?
                
> Graph package to support stopping the interations when the node changes are within the tolerance value as in the case of page rank
> ----------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HAMA-556
>                 URL: https://issues.apache.org/jira/browse/HAMA-556
>             Project: Hama
>          Issue Type: New Feature
>          Components: bsp core
>    Affects Versions: 0.5.0
>            Reporter: praveen sripati
>            Assignee: Thomas Jungblut
>            Priority: Minor
>             Fix For: 0.6.0
>
>         Attachments: HAMA-556.patch, HAMA-556_1.patch
>
>
> Currently in the graph package, the iteration continues till the nodes are no longer updated (absolutely) or the maximum number of iterations has reached. It doesn't support testing the node changes with some tolerance and then stop the iterations as in the case of page rank.
> The above scenario might be applicable besides page rank also.
> org.apache.hama.graph.GraphJobRunner#bsp()
> while (updated && iteration < maxIteration) {
>      ......
>      ......
> }

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