But openmc.run() won’t start - it can’t find cross_sections.xml.
Adding a “Materials.cross_sections” line in code does not work either.
Commands
!cat $OPENMC_CROSS_SECTIONS | head -n 10
print(’ …’)
!cat $OPENMC_CROSS_SECTIONS | tail -n 10
Also don’t work. How to get the cross_sections.xml file?
nope, I did not. I have followed only the installation process for Ubuntu/Linux and have thought that it will be included. Where should I download it from?
I think something went wrong since I am getting some error now when trying to run a fuel pin example. It worked well and now it does not want to work with Zr.