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

[ll <du...@gmail.com>]

hi.  i did use local[8] as below, but it still ran on only 1 core.

val sc = new SparkContext(new
SparkConf().setMaster("local[8]").setAppName("abc"))

any advice is much appreciated.



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

["Ganelin, Ilya" <Il...@capitalone.com>]

To set the number of spark cores used you must set two parameters in the actual spark-submit script. You must set num-executors (the number of nodes to have) and executor-cores (the number of cores per machinel) . Please see the Spark configuration and tuning pages for more details.


-----Original Message-----
From: ll [duy.huynh.uiv@gmail.com<ma...@gmail.com>]
Sent: Saturday, November 08, 2014 12:05 AM Eastern Standard Time
To: user@spark.incubator.apache.org
Subject: Re: Fwd: Why is Spark not using all cores on a single machine?


hi.  i did use local[8] as below, but it still ran on only 1 core.

val sc = new SparkContext(new
SparkConf().setMaster("local[8]").setAppName("abc"))

any advice is much appreciated.



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View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/Fwd-Why-is-Spark-not-using-all-cores-on-a-single-machine-tp1638p18397.html
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