Re: Parallelism level

[Eduardo Costa Alfaia]

What do you advice me Nicholas?

Em 4/4/14, 19:05, Nicholas Chammas escreveu:

If you're running on one machine with 2 cores, I believe all you can get out of it are 2 concurrent tasks at any one time. So setting your default parallelism to 20 won't help.

On Fri, Apr 4, 2014 at 11:41 AM, Eduardo Costa Alfaia <e.costaalf...@unibs.it <mailto:e.costaalf...@unibs.it>> wrote:

    Hi all,

    I have put this line in my spark-env.sh:
    -Dspark.default.parallelism=20

     this parallelism level, is it correct?
     The machine's processor is a dual core.

    Thanks

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