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From "Eli Reisman (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (GIRAPH-397) We should have copies of aggregators per thread to avoid synchronizing on aggregate()
Date Sun, 04 Nov 2012 21:58:12 GMT

    [ https://issues.apache.org/jira/browse/GIRAPH-397?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13490306#comment-13490306
] 

Eli Reisman commented on GIRAPH-397:
------------------------------------

I like this, but I would have the default not to use it since some applications don't use
aggregators at all and definitely don't have the extra storage to spare. +1 from me!

                
> We should have copies of aggregators per thread to avoid synchronizing on aggregate()
> -------------------------------------------------------------------------------------
>
>                 Key: GIRAPH-397
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-397
>             Project: Giraph
>          Issue Type: Improvement
>            Reporter: Maja Kabiljo
>            Assignee: Maja Kabiljo
>            Priority: Minor
>         Attachments: GIRAPH-397.patch
>
>
> Fixing one of TODOs from GIRAPH-273. Adding copies of aggregators for each thread allows
us not to have to synchronize on each aggregate call. Aggregated values from each thread can
be aggregated together after computation is finished.

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