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From "Pavan Kumar (JIRA)" <>
Subject [jira] [Created] (GIRAPH-908) support for partitioned input in giraph
Date Wed, 04 Jun 2014 15:09:01 GMT
Pavan Kumar created GIRAPH-908:

             Summary: support for partitioned input in giraph
                 Key: GIRAPH-908
             Project: Giraph
          Issue Type: Improvement
            Reporter: Pavan Kumar
            Assignee: Pavan Kumar

When the graph we need to work on is already partitioned into a fixed number of buckets, with
properties such as high edge-locality, low fan-out to other buckets, etc.  [for instance using
techniques such as ]

we should be able to partition our graph based on such a mapping, to improve local-requests,
etc. thus avoiding huge network communication. this diff is especially useful we repeatedly
run algorithms on top of the same graph. In such case, we can compute the partitioning once
& then use it to speed up processing, (also requiring less network bandwidth, etc.) for
the rest applications on same/ similar graphs.

The diff is big & partly reviewed by my colleagues. Putting it up for review

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