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https://issues.apache.org/jira/browse/FLINK-1514?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14352264#comment-14352264
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ASF GitHub Bot commented on FLINK-1514:
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Github user vasia commented on the pull request:
https://github.com/apache/flink/pull/408#issuecomment-77774618
- Regarding annotations, I actually tried as many I could find :)) [This is
the commit]
(https://github.com/vasia/flink/blob/653cb21981a80c5790ca29804e39e4c3642aee2d/flink-staging/flink-gelly/src/main/java/org/apache/flink/graph/gsa/GatherSumApplyIteration.java).
I haven't looked at the execution plans, but my annotations didn't make a big
difference in the runtime of my experiments.
- As for having triplets in the solution set, I also thought about this.
The problem is that then, you will still have to re-build them, in the solution
set delta, at the end of every iteration (in order to update the solution
set). Unless you have something in mind that avoids this?
> [Gelly] Add a Gather-Sum-Apply iteration method
> -----------------------------------------------
>
> Key: FLINK-1514
> URL: https://issues.apache.org/jira/browse/FLINK-1514
> Project: Flink
> Issue Type: New Feature
> Components: Gelly
> Affects Versions: 0.9
> Reporter: Vasia Kalavri
> Assignee: Daniel Bali
>
> This will be a method that implements the GAS computation model, but without
> the "scatter" step. The phases can be mapped into the following steps inside
> a delta iteration:
> gather: a map on each < srcVertex, edge, trgVertex > that produces a partial
> value
> sum: a reduce that combines the partial values
> apply: join with vertex set to update the vertex values using the results of
> sum and the previous state.
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