can parfor in compiled code access a local worker pool?

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emmenlau on 20 Jul 2015
Commented: Dasharath Gulvady on 24 Jul 2015
I run on a dedicated multi-code computer very often mcc-compiled matlab programs, in which I execute parfor. Each program has a relatively slow startup time, I think because it is create the parallel worker pool. For my application, it would be more efficient if the pool could remain open all the time in the background, for example from a headless matlab session. Is something like that possible, or are there other solutions?

Answers (1)

Dasharath Gulvady
Dasharath Gulvady on 22 Jul 2015
Edited: Dasharath Gulvady on 22 Jul 2015
It is definitely possible for a compiled MATLAB code to utilize profiles created using Parallel Computing Toolbox. The below documentation page explains the same:
Dasharath Gulvady
Dasharath Gulvady on 24 Jul 2015
Which version of MATLAB are you using? The expected behavior is not to share any workers between the MATLAB sessions. In the second MATLAB session, if you execute
>>p = gcp('nocreate');
What is the value of p? Note that, you should execute the above command without creating a pool beforehand.

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