GitHub user ankurdave opened a pull request:
https://github.com/apache/spark/pull/3619
[SPARK-4763] All-pairs shortest paths algorithm for GraphX
Computes unweighted all-pairs shortest paths, returning an RDD containing
the shortest-path distance between all pairs of reachable vertices. The
algorithm is similar to distance-vector routing and runs in `O(|V|)` iterations.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/ankurdave/spark
SPARK-4763-all-pairs-shortest-paths
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/3619.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #3619
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commit b69cffbc831ae79d1f5b56713ff839f80ba0caaa
Author: Ankur Dave <ankurd...@gmail.com>
Date: 2014-12-05T10:01:34Z
Checkpoint every 25 iterations in Pregel
commit 0c0e18465b871d97ddf0b11d86c3462147d45fb7
Author: Ankur Dave <ankurd...@gmail.com>
Date: 2014-12-05T10:00:49Z
Add AllPairsShortestPaths and unit test
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