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[SPARK-11496][GRAPHX] Parallel implementation of personalized pagerank #9457

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[SPARK-11496][GRAPHX] Parallel implementation of personalized pagerank #9457

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f41975e
Parallel personalized pagerank implementation
Oct 30, 2015
3605e40
Scala style tweaks
Nov 4, 2015
8b34e5c
Removing breeze dependency from mllib (available through graphx)
Nov 24, 2015
508ba45
Renaming SparseVector to BSV
Nov 24, 2015
09d31c8
Removing extra space, extra line
Nov 24, 2015
8506353
Code-style changes
Nov 24, 2015
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Scala style tweaks
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Yves Raimond committed Nov 4, 2015
commit 3605e40e8e61c853c89637918c82c7e0bcec69e8
28 changes: 16 additions & 12 deletions graphx/src/test/scala/org/apache/spark/graphx/lib/PageRankSuite.scala
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Expand Up @@ -118,23 +118,26 @@ class PageRankSuite extends SparkFunSuite with LocalSparkContext {
val dynamicRanks = starGraph.personalizedPageRank(0, 0, resetProb).vertices.cache()
assert(compareRanks(staticRanks2, dynamicRanks) < errorTol)

val parallelStaticRanks1 = starGraph.staticParallelPersonalizedPageRank(Array(0), 1, resetProb).mapVertices{
case (vertexId, vector) => vector(0)
}.vertices.cache()
val parallelStaticRanks1 = starGraph
.staticParallelPersonalizedPageRank(Array(0), 1, resetProb).mapVertices{
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@dbtsai dbtsai Nov 4, 2015

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space before {

case (vertexId, vector) => vector(0)
}.vertices.cache()
assert(compareRanks(staticRanks1, parallelStaticRanks1) < errorTol)

val parallelStaticRanks2 = starGraph.staticParallelPersonalizedPageRank(Array(0, 1), 2, resetProb).mapVertices{
case (vertexId, vector) => vector(0)
}.vertices.cache()
val parallelStaticRanks2 = starGraph
.staticParallelPersonalizedPageRank(Array(0, 1), 2, resetProb).mapVertices{
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@dbtsai dbtsai Nov 4, 2015

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ditto

case (vertexId, vector) => vector(0)
}.vertices.cache()
assert(compareRanks(staticRanks2, parallelStaticRanks2) < errorTol)

// We have one outbound edge from 1 to 0
val otherStaticRanks2 = starGraph.staticPersonalizedPageRank(1, numIter = 2, resetProb)
.vertices.cache()
val otherDynamicRanks = starGraph.personalizedPageRank(1, 0, resetProb).vertices.cache()
val otherParallelStaticRanks2 = starGraph.staticParallelPersonalizedPageRank(Array(0, 1), 2, resetProb).mapVertices{
case (vertexId, vector) => vector(1)
}.vertices.cache()
val otherParallelStaticRanks2 = starGraph
.staticParallelPersonalizedPageRank(Array(0, 1), 2, resetProb).mapVertices{
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@dbtsai dbtsai Nov 4, 2015

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ditto

case (vertexId, vector) => vector(1)
}.vertices.cache()
assert(compareRanks(otherDynamicRanks, otherStaticRanks2) < errorTol)
assert(compareRanks(otherStaticRanks2, otherParallelStaticRanks2) < errorTol)
assert(compareRanks(otherDynamicRanks, otherParallelStaticRanks2) < errorTol)
Expand Down Expand Up @@ -193,9 +196,10 @@ class PageRankSuite extends SparkFunSuite with LocalSparkContext {

assert(compareRanks(staticRanks, dynamicRanks) < errorTol)

val parallelStaticRanks = chain.staticParallelPersonalizedPageRank(Array(4), numIter, resetProb).mapVertices{
case (vertexId, vector) => vector(0)
}.vertices.cache()
val parallelStaticRanks = chain
.staticParallelPersonalizedPageRank(Array(4), numIter, resetProb).mapVertices{
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@dbtsai dbtsai Nov 4, 2015

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ditto

case (vertexId, vector) => vector(0)
}.vertices.cache()
assert(compareRanks(staticRanks, parallelStaticRanks) < errorTol)
}
}
Expand Down