On 5/19/20 3:26 PM, Dmitri A. Sergatskov wrote:
> Should we switch to bug-tracker?
> I was able to get a crash when I bumped the jobs to 200.
> bt is attached. The relevant part seems to be:
If I use a large number of jobs, I see
error: imwrite: invalid empty image
error: called from
__imwrite__ at line 40 column 5
imwrite at line 125 column 5
print at line 755 column 13
interpimages at line 72 column 5
but no segfaults.
It does look like a threading issue.
I used a simplified test by Andreas:
parallel -N0 -q octave --norc --silent --no-history --eval 'figure (1, "visible", "off");' ::: {1..200}
jwe
Dmitri.