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From "Claudio Martella (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (GIRAPH-616) Decouple vertices and edges in DiskBackedPartitionStore and avoid writing back edges when the algorithm does not change topology.
Date Fri, 12 Apr 2013 09:48:15 GMT

     [ https://issues.apache.org/jira/browse/GIRAPH-616?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Claudio Martella resolved GIRAPH-616.
-------------------------------------

    Resolution: Fixed
    
> 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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