How to make matlab use more CPUs

Dear all, I am running matlab on a linux server which has 64 free CPUs but when I run matlab it uses only 4 CPUs. How can I make matlab to use at leat 12 CPUs?

Answer 1

[Andy]

I am surprised you are managing to use 4 CPUs but then my only experience is with desktop PCs not servers. To use more more you will probably need the Parallel Computing Toolbox. http://www.mathworks.co.uk/products/parallel-computing/

Answer 2

[Raymond Norris]

You need to provide more information on how you're running MATLAB on the server.

1. Are you running through a scheduler (e.g. PBS)? If so, include a copy of the job script.
2. Are you using cgroups?

[Walter Roberson]

Note this was a 2013 question!

Back then, you needed a special license to use more than 4 CPUs with Parallel Computing Toolbox.

[Raymond Norris]

Didn't bother to look at the post date. For some reason, it just popped up in my feed the other day.

[Walter Roberson]

Yup, someone posted an Answer to it, with the entire content of the Answer being the word "ok"