CODEWITHSUNDEEP
pythonscipyintel-mkl
user50473
user50473

Reputation: 165

Intel MKL ERROR: Parameter 6 was incorrect on entry

I get the following error:

Intel MKL ERROR: Parameter 6 was incorrect on entry to DGELSD.

when running a Savistky-Golay filter on scipy (function scipy.signal.savgol_filter).

I tried to uninstall conda using anaconda-clean, after which I did this:

https://levelup.gitconnected.com/intel-math-kernel-library-mkl-error-using-python-6fbe9cf4aa4e

Didn't solve the problem. Still no idea what is going on, I'd really love to know what I can do. Also, my data does not contain nans.

I am using spyder 4.2.0 and python 3.7.9 on windows 10, running the script in an external window. Not sure if this is related, but I am using the multiprocessing package and the call to scipy.signal.savgol_filter is in a function called by a pool of workers (minimal example below):

def fn_savgol(x, window_length, polyorder):
    # some stuff
    result = scipy.signal.savgol_filter(x, window_length, polyorder)
    # some other stuff updating the result
    return result

def backtest_single_combi(args):
    p=multiprocessing.Pool()
    print("Start Pool.")
    result=p.imap_unordered(fn_savgol,args)
    p.close()
    p.join()
    return list(result)

if __name__ == '__main__':
    args=(...) # a list of tuples
    backtest_single_combi(args)

Upvotes: 2

Views: 9934

Answers (2)

Rolf Carlson
Rolf Carlson

Reputation: 883

I received the same error and solved it by adding the intel channel to the top of the conda channel list and followed with an update.

conda config --add channels intel
conda update --all

Upvotes: 2

Artem Pavlovskii
Artem Pavlovskii

Reputation: 29

I faced the same problem. The only workaround I found is to change the mode parameter from default value ('interp') to either 'mirror' or 'constant' or 'nearest' or 'wrap'.

Upvotes: 1

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