Setting up Matlab to run parfor

I would like to set up my matlab code to run parfor on 4 cores on my computer but on the bottom left of my Matlab there is no option or icon to click to set this option. Is there settings to either my computer or Matlab to allow me access to use parfor?

Thanks.

Answer 1

[Benjamin Thompson]

Do you have the Parallel Computing Toolbox installed? That is required. Then, parfor has an argument for choosing a smaller number of cores than the default if that is what you want.