Fix typo
Unrolled while loop in readVarLong.

(cherry picked from commit 45ffb1ae3c0527aae50502741a3585c411875b9a)
Signed-off-by: Ankur Dave <ankurdave@gmail.com>
Use murmur3 hash for open hashset.

(cherry picked from commit 212ff6834515543163aa63a3f4f762ebe641f8ca)
Signed-off-by: Ankur Dave <ankurdave@gmail.com>
Merge pull request #103 from amplab/optimizations

Optimizations cherry-picked from SIGMOD branches
SVD++ demo
Merge branch 'master' of git://github.com/apache/incubator-spark
Track task value serialisation time in TaskMetrics.
UI to display serialisation time of a stage.
Merge pull request #94 from ankurdave/load-edges-columnar

Load edges in columnar format
Merge remote-tracking branch 'upstream/master' into mrTriplets-active-set

Conflicts:
	graph/src/main/scala/org/apache/spark/graph/impl/GraphImpl.scala
Merge pull request #100 from ankurdave/mrTriplets-active-set

Support activeSet option in mapReduceTriplets
Add clustered index on edges by source vertex

This allows efficient edge scan in mapReduceTriplets when many source
vertices are inactive. The scan method switches from edge scan to
clustered index scan when less than 80% of source vertices are active.
Incorporate pwendell's code review suggestions.
Merge branch 'master' of git://github.com/apache/incubator-spark
Missed a spot; had an objectSer here too.
spark-898, changes according to review comments
spark-968, changes for avoid a NPE
Update Svdpp.scala
Test SVD++
Update Svdpp.scala