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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (GIRAPH-616) Decouple vertices and edges in DiskBackedPartitionStore and avoid writing back edges when the algorithm does not change topology.
Date Thu, 11 Apr 2013 23:11:17 GMT

    [ https://issues.apache.org/jira/browse/GIRAPH-616?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13629536#comment-13629536
] 

Hudson commented on GIRAPH-616:
-------------------------------

Integrated in Giraph-trunk-Commit #911 (See [https://builds.apache.org/job/Giraph-trunk-Commit/911/])
    GIRAPH-616: Decouple vertices and edges in DiskBackedPartitionStore and avoid writing
back edges when the algorithm does not change topology. (Revision 228edbbd798f7718a5a7ccbcfd35c22e812be761)
GIRAPH-616 (Revision 39f3591365cbe15b74c82574787d0592681d8ba5)

     Result = SUCCESS
claudio : http://git-wip-us.apache.org/repos/asf?p=giraph.git&a=commit&h=228edbbd798f7718a5a7ccbcfd35c22e812be761
Files : 
* giraph-core/src/main/java/org/apache/giraph/conf/GiraphConstants.java
* giraph-core/src/main/java/org/apache/giraph/partition/DiskBackedPartitionStore.java
* giraph-core/src/main/java/org/apache/giraph/conf/GiraphConfiguration.java

claudio : http://git-wip-us.apache.org/repos/asf?p=giraph.git&a=commit&h=39f3591365cbe15b74c82574787d0592681d8ba5
Files : 
* CHANGELOG

                
> Decouple vertices and edges in DiskBackedPartitionStore and avoid writing back edges
when the algorithm does not change topology.
> ---------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: GIRAPH-616
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-616
>             Project: Giraph
>          Issue Type: Improvement
>            Reporter: Claudio Martella
>            Assignee: Claudio Martella
>         Attachments: GIRAPH-616.diff, GIRAPH-616.diff
>
>
> Many algorithms work on a static graph. In these cases, when running out-of-core graph
we end up writing back the edges that have not changed since we read them. By decoupling vertices
and edges, we can write back only the freshly computed vertex values.

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