srowen commented on a change in pull request #24531: [SPARK-27636][MLLIB]Remove
cached RDD blocks after PIC execution
URL: https://github.com/apache/spark/pull/24531#discussion_r281808137
##########
File path:
mllib/src/main/scala/org/apache/spark/mllib/clustering/PowerIterationClustering.scala
##########
@@ -205,7 +207,10 @@ class PowerIterationClustering private[clustering] (
case "random" => randomInit(w)
case "degree" => initDegreeVector(w)
}
- pic(w0)
+
+ // Materialized the graph w0 in randomInit/initDegreeVector, hence we can
unpersist w.
Review comment:
Oops, one more nit: this needs to indent 1 more space
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