Seth Hendrickson commented on SPARK-17134:

Hmm, it would be nice to see this vs the old mlor in rdd API, just as a sanity 
check. I conducted performance testing against mllib initially, though, so 
there shouldn't be any regressions.

> Use level 2 BLAS operations in LogisticAggregator
> -------------------------------------------------
>                 Key: SPARK-17134
>                 URL: https://issues.apache.org/jira/browse/SPARK-17134
>             Project: Spark
>          Issue Type: Sub-task
>          Components: ML
>            Reporter: Seth Hendrickson
> Multinomial logistic regression uses LogisticAggregator class for gradient 
> updates. We should look into refactoring MLOR to use level 2 BLAS operations 
> for the updates. Performance testing should be done to show improvements.

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