Re: Fwd: Why is Spark not using all cores on a single machine?

[Ewen Cheslack-Postava]

You need to tell it to use more cores by specifying MASTER=local[N] where N is the number of cores you want to use. See the "Initializing Spark" and "Master URLs" sections of the scala programming guide: http://spark.incubator.apache.org/docs/latest/scala-programming-guide.html Ewen Johan Verwey February 17, 2014 at 11:50 AM