Github user VinceShieh commented on the issue: https://github.com/apache/spark/pull/17894 Forgot to mention, we observed a nearly 2x performance gain with the help of nativeBLAS- MKL, without a fine tuning, so if we can also make F2J version run faster in distributed cluster than the current design, it would truly be a good PR for community. :) ![image](https://cloud.githubusercontent.com/assets/2673819/26686368/47cefb12-471f-11e7-815d-afb28c7e983d.png)
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