Depletion calculations are not depleting

User Support
1

Greetings,

I am using OpenMC version 0.14.0, and I am having problems with my depletion scripts not depleting anymore. To try and see if it was my code or something else, I tried out the notebook example here: link. The example did not calculate any depletions as well. I saw a solution posted on the support page here: link, where @paulromano suggested:

One thing I’ll mention – there was recently a new version of SciPy released (1.12) and it caused a lot of our depletion tests to fail, and I have a sneaking suspicion that this may be the cause of the problems you all are seeing here. I haven’t had time to dig into the root cause yet and find a fix, but in the meantime I would suggest downgrading scipy to see if that helps (pip install 'scipy==1.11.4' or conda install 'scipy=1.11.4' ).

I did try this suggestion out since it seemed to be working for others and I was on version 1.13.1, but it did not seem to do the trick. I am not sure what else to try.

Any help would be greatly appreciated!

2

Make sure that you restart your Python kernel instance (sometimes for me I even have to reboot the computer for some reason) after downgrading scipy. I’m not sure if this does the trick but at least it’s worth a try.

1 Like
3

I tried this after a fresh install in my environment and it seemed to do the trick! Thank you so much!