Multithreading does not work for external programs called by the 'system' command

2011 4 13
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I am using Matlab R2010a on a Windows Server 2003 computer in combination with an external program. The external program is called by the 'system' command. The external program does not use multithreading. If you run the external program outside Matlab (by running it from the DOS-prompt) it uses multithreading. Is there a possibility to use multithreading for programs called by the 'system' command?

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Sarah Wait Zaranek
Sarah Wait Zaranek 2011-4-13

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I have seen this before. I think this is how we resolved it.
Basically, MATLAB and Windows may use different environment variables.
If your application is using the OMP_NUM_THREADS environment variable, you can set this directly in MATLAB.
setenv('OMP_NUM_THREADS',numOfThreads);
More info here

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