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https://issues.apache.org/jira/browse/GIRAPH-68?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13404494#comment-13404494
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Hyunsik Choi commented on GIRAPH-68:
------------------------------------

Sorry for late work. I had a second thought. As your suggestion, we can achieve 
the same thing via GiraphRunner if we had an identity vertex. This way looks 
simple and better. However, we still need to enable 
PageRank/RandomMessageBenchmark to take a input format and input paths.

As you suggested, I'll a new jira issue about IdentityVertex, and I would like 
to change GIRAPH-68 to modify PageRank/RandomMessageBenchmark to take an input 
format and input paths.

Any other suggestion?
                
> Implement a Graph Generator
> ---------------------------
>
>                 Key: GIRAPH-68
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-68
>             Project: Giraph
>          Issue Type: New Feature
>          Components: benchmark
>    Affects Versions: 0.1.0
>            Reporter: Hyunsik Choi
>            Assignee: Hyunsik Choi
>         Attachments: GIRAPH-68_1.patch, GIRAPH-68_2.patch
>
>
> To provide users with benchmark environments and to deeply test the 
> input/output system of giraph, we need a graph generator. We will enable the 
> graph generator to generate various kinds of graph data sets by specifying a 
> VertexInputFormat and a VertexOutputFormat.

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