Github user MLnick commented on a diff in the pull request:
https://github.com/apache/spark/pull/17919#discussion_r115692011
--- Diff: mllib/src/main/scala/org/apache/spark/ml/recommendation/ALS.scala
---
@@ -451,6 +439,8 @@ class ALSModel private[ml] (
@Since("1.6.0")
object ALSModel extends MLReadable[ALSModel] {
+ @transient private[recommendation] val _f2jBLAS = new F2jBLAS
--- End diff --
No more or less than using `ml.linalg.BLAS` - I did think of that but the
`var` needs to be exposed as `private[ml]`. If we're ok with that then it'll be
slightly cleaner to use that, yes.
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