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From "Maja Kabiljo (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (GIRAPH-543) PageRankBenchmark has unnecessary edge weights
Date Wed, 10 Apr 2013 22:09:16 GMT

    [ https://issues.apache.org/jira/browse/GIRAPH-543?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13628339#comment-13628339
] 

Maja Kabiljo commented on GIRAPH-543:
-------------------------------------

There are two benefits:
- Int, float version allows us to have bigger graph whit the same amount of resources
- With the same graph size, new implementation was about 1.5x faster

Committing with Alessandro's +1 from reviewboard.
                
> PageRankBenchmark has unnecessary edge weights
> ----------------------------------------------
>
>                 Key: GIRAPH-543
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-543
>             Project: Giraph
>          Issue Type: Bug
>            Reporter: Alessandro Presta
>            Assignee: Maja Kabiljo
>         Attachments: GIRAPH-543.patch
>
>
> PageRankBenchmark uses PseudoRandomInputFormat, which produces edges with double values.
> Since edge values are meaningless for the algorithm, we should change it to use null
values to have a better evaluation of PageRank performance.

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