Simple parallel execution in MATLAB

Question

I have figured out some awesome ways of speeding up my MATLAB code: vectorizing, arrayfun, and basically just getting rid of for loops (not using parfor). I want to take it

Answer 1

The MATLAB interpreter is single-threaded, so the only way to achieve parallelism across MATLAB functions is to run multiple instances of MATLAB. Parallel Computing Toolbox does this for you, and gives you a convenient interface in the form of PARFOR/SPMD/PARFEVAL etc. You can run multiple MATLAB instances manually, but you'll probably need to do a fair bit of work to organise the work that you want to be done.