How to use mpiprofile outside of pmode?

I am trying to profile a parallel function outside of pmode, using the following commands:

    pJob = createParallelJob();
    createTask(pJob,@par_func,1,{linspace(0,1,32),8});
    set(pJob,'MinimumNumberOfWorkers',8);
    set(pJob,'MaximumNumberOfWorkers',8);
    submit(pJob);
    waitForState(pJob);
    getAllOutputArguments(pJob)

where par_func has a single output:

    function pInfo = par_func()
    spmd
    mpiprofile on;
    % My code here
    pInfo = mpiprofile('info');
    end

However the getAllOutputArguments returns empty cell. I am very new using parallel processing toolbox, so it should be a simple mistake. :)

Thanks!