Parallelization in MATLAB R2018b

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please when i parallelize my function and this error:"An UndefinedFunction error was thrown on the workers for 'mex'. This might be because the file containing 'mex' is not accessible on the workers Use addAttachedFiles(pool, files) to specify the required files to be attached. See the
documentation for 'parallel.Pool/addAttachedFiles' for more details."
I don't know how to solve this problem please

Accepted Answer

Raymond Norris
Raymond Norris on 30 Aug 2021
Please include how you're starting the parpool and how mex is being called. I suspect the issue is that the files required when calling mex aren't automatically attached to the parallel pool. For instance, in the following
mex my_code.m
parpool probably won't auto-attach my_code to the pool. Instead, you'll first need to run as the the error message states

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