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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