[Octave-bug-tracker] [bug #41619] parcellfun can cause octave to hang indefinitely

[jose]

Follow-up Comment #1, bug #41619 (project octave):

The following code makes my octave-3.8.2 to hang always similarly as you
describe:
    octave:2> s=parcellfun(15,@sin,{0,pi,1,NA},"UniformOutput", false)

BTW, I have 8 cores. Putting a larger number in NPROC seems to help to
reproduce this issue. 

Your version seems to handle this better, but...
    octave:5> s=parcellfun2(15,@sin,{0,pi,1,NA},"UniformOutput",     false);
    parcellfun: 0/4 jobs done
    parcellfun: 11979 ready
    parcellfun: 1/4 jobs done
    parcellfun: 1/4 jobs done
    parcellfun: 1/4 jobs done
    parcellfun: 11979 ready
    parcellfun: send terminate to 11979
    parcellfun: 2/4 jobs done
    parcellfun: 11981 ready
    parcellfun: send terminate to 11981
    parcellfun: 3/4 jobs done
    parcellfun: 11980 ready
    parcellfun: send terminate to 11980
    parcellfun: 4/4 jobs done
    error: fclose: invalid stream number = 40

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