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From greghogan <...@git.apache.org>
Subject [GitHub] flink pull request: [FLINK-2909] [Gelly] Graph generators
Date Fri, 08 Apr 2016 18:22:55 GMT
Github user greghogan commented on the pull request:

    https://github.com/apache/flink/pull/1807#issuecomment-207546079
  
    @vasia thank you for the recommendations, the improvements are almost ready to push. Running
the `Graph500` example on an AWS c4.8xlarge (with 36 'virtual cores') generated a billion
edges (scale 26, edge factor 16) in 25.8s wall time (23.4s execution time). When simplifying
the graph with 'clip-and-flip' the runtime was 2m33s wall time (2m31s execution time) and
when performing a full flip (thus doubling the number of edges) the runtime was 5m00s wall
time (4m58s execution time).
    
    Many algorithms require edges to be sorted so that cost is already accounted for. Edge
generation should scale beautifully.


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