spark-reviews mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From srowen <>
Subject [GitHub] spark pull request: [SPARK-8140] [Minor] [MLlib] Minor internal im...
Date Sat, 06 Jun 2015 13:46:34 GMT
Github user srowen commented on a diff in the pull request:
    --- Diff: mllib/src/main/scala/org/apache/spark/mllib/regression/GeneralizedLinearAlgorithm.scala
    @@ -179,7 +179,7 @@ abstract class GeneralizedLinearAlgorithm[M <: GeneralizedLinearModel]
       def run(input: RDD[LabeledPoint]): M = {
         if (numFeatures < 0) {
    -      numFeatures =
    +      numFeatures = input.first().features.size
    --- End diff --
    I see your intent here, but if the vectors are very large, it might actually be faster
to get its size remotely and return only the size to the driver.  But yes it entails a small
distributed operation. I'm not sure which is better.

If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at or file a JIRA ticket
with INFRA.

To unsubscribe, e-mail:
For additional commands, e-mail:

View raw message