How to specify number of threads a matlab session can use
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I have read many other 'answers' on this matter, but I am not succeeding.
I have a heavily vectorized code that I want to run, but I want to limit the number of cores that a matlab session can use because I want to run the same code many times at once (using multiple simultaneously running matlab sessions). This should prevent any bottlenecking of cpu power which I expect to increase efficiency.
Anyways, I've tried:
parpool(1)
and
maxNumCompThreads=1
but both fail as task manager indicates that many cores continue to be used.
How do I do this?
回答(1 个)
Sean de Wolski
2014-11-5
Start MATLAB from the system command prompt with -singleCompThread flag.
Or use the Parallel Computing Toolbox and parfor or spmd to run on multiple MATLAB workers in Parallel.
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