MATLAB: Do the parfor loops run in parallel in matlab interactive mode, but in serial mode when I deployed, using Matlab compiler

MATLAB Compilerparallel computingParallel Computing Toolbox

I have multiple programs that contain parfor loops. These parfor loops successfully execute the relevants sections in parallel when I run in interactive Matolab.

However when I deploy these programs using Matlab compiler, they only run in serial. It seems the Matlab compiler is not honouring my setting "Automatically create a parallel pool (if one doesn't exist) when parallel keywords are executed", which I have enabled in my Matlab settings. (I am compiling using the same settings, so these settings should be baked into the deployed app).

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Note, after 1 day messing around, I was able to work around this by explicitly calling parpool() just before my parfor. This should not be necessary because of the "Automatically create a parallel pool" settings.

Note, I am running Matlab 2016b. I have not verified this incorrect behaviour on a more recent version of Matlab.

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MATLAB: Can compiled MATLAB standalone make use of MDCS

Since R2008b applications deployed using the MATLAB compiler can access a cluster running MATLAB Distributed Computing Server.

The documentation has information and examples: http://www.mathworks.com/help/toolbox/compiler/f12-999353.html#br2jauc-47, but a quick example might look like this

function my_compiled_app
    % Open a matlabpool on the cluster defined
    % by the 'my_cluster' configuration
    matlabpool('open', 4, 'my_cluster');
    % Run a parfor loop on the cluster
    parfor i = 1:10
       disp(i)
    end
    % Close the pool   
    matlabpool('close');
  end

Compile the application using mcc

 >> mcc -m my_compiled_app

And the run it - this should open a matlabpool on the cluster, and show the parfor running

 C:\Work> my_compiled_app.exe

MATLAB: Cell Mode

The cells should not disappear.

Are the cell division lines (double % signs) still present in the re-opened M-file?

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