How to set cpu cores for spark task?

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I am running some tasks in my Spark application and it is running a little slow so I am thinking of increasing the number of cores assigned to each task. How can I do it?
Mar 12, 2019 in Apache Spark by Prateek
1,195 views

1 answer to this question.

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By default, each task is allocated with 1 cpu core. To increase this, you can dynamically change the number of cores allocated;

val sc = new SparkContext(new SparkConf())
./bin/spark-submit <all your existing options> --spark.task.cpus=<number of cores>
answered Mar 12, 2019 by Veer

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