Hello,
I’ve, over the past few days, looked into using the new Vector API [1] to
accelerate some BLAS operations straight from Java. You can find a gist at [2]
containing most of the changes in
mllib-local/src/main/scala/org/apache/spark/ml/linalg/BLAS.scala.
To measure performance, I’ve a
Yes it's intriguing, though as you say not readily available in the wild
yet.
I would also expect native BLAS to outperform f2j also, so yeah that's the
interesting question, whether this is a win over native code or not.
I suppose the upside is eventually, we may expect this API to be available
in
Regarding selective compilation, you can hide sources behind a Maven
profile such as `-Pvectorized`. Check out what we do to switch between the
`hive-1.2` and `hive-2.3` profiles where different source directories are
grabbed at compile-time (the hive-1.2 profile was recently removed so you
might h
