How do I force matlab to run on a certain processor other than the first one under Linux?

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Kai 2012-10-2

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Aloha Folks, sometimes I have Matlab running doing some crunch work and its taking over resources from other programs, making it sometimes hard to do any sort of work.

I am wondering if there is a way to assign a worker other than the primary to be used for matlab. This is not a parallel question, though I am aware that I may need parallel/distributive toolboxes.I am using Linux, so perhaps a combination with PBS or similar might be an option?

FYI, under windows, you can use Affinity in the task manager.

I am very thankful for anyone who could help me with this,

Thank you!

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Answer 1

Jason Ross 2012-10-4

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Take a look at the "taskset" command.

I will say that most modern OS's do a pretty decent job of balancing processes -- so the slowdown might be coming from the exhaustion of another resource, like memory or disk I/O -- especially if you are using enough memory to be using a swap file heavily.