Error 5001 when I use python multiprocessing module, which calls Matlab functions
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I used python multiprocessing module for multiprocessing a image processs function, in which I started a Matlab engine and call Matlab functions. Then it appeared many pop-ups: Error 5001 - Unable to access services required to run MATLAB.
I tried to start the Matlab engine in main function and passed the engine as parameters to the image function, but then it appeared TypeError: cannot pickle 'weakref.ReferenceType' object.
The rough code is as follows:
def ImageProcess(data):
eng = matlab.engine.start_matlab()
...
return results
if __name__ == '__main__':
pool = multiprocessing.Pool()
results = pool.map(ImageProcess, data)
pool.close()
pool.join()
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Answers (1)
Esther
on 28 Mar 2024
This error indicates that the MATLAB has encountered a licensing issue. Try the solutions below to resolve the error:
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