Github user feynmanliang commented on a diff in the pull request:
https://github.com/apache/spark/pull/7166#discussion_r34196106
--- Diff:
mllib/src/main/scala/org/apache/spark/mllib/clustering/GaussianMixture.scala ---
@@ -43,6 +43,9 @@ import org.apache.spark.util.Utils
* While this process is generally guaranteed to converge, it is not
guaranteed
* to find a global optimum.
*
+ * Computation of the Gaussian pdfs are distributed across workers when
dimensionality of the input
+ * data >= 30 and number of centers >= 10.
--- End diff --
OK
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