No such file or directory: 'njoy'

Question

No such file or directory: 'njoy'

Closed this issue 3 years ago · 3 comments

I have an issue to generate cross section library from generate_endf.py

when I ran the code, it was everything is good for downloading and extracting the files for neutron, proton and thermal scattering

when it start to convert, it shows me the error such as /home/abugami/anaconda3/envs/openmc-env/xs/data/endfb-viii.0-endf/neutron/n-092_U_238.endf /home/abugami/anaconda3/envs/openmc-env/xs/data/endfb-viii.0-endf/neutron/tsl-UinUO2.endf [Errno 2] No such file or directory: 'njoy'

Answer 1 · 2021-06-26T12:42:41.000Z

Yes for some of these scripts the NJOY software package is needed.

We tend to install it like this https://github.com/openmc-dev/openmc/blob/b62708f911d05e269e5c3083287e70d050ed35f9/Dockerfile#L38

Answer 2 · 2021-06-26T12:48:28.000Z

I am using anaconda3. how to install NJOY software package on it?

Answer 3 · 2021-07-13T18:13:21.000Z

@Bugami with your conda environment activated, you should follow the installation instructions from NJOY itself. Once it is installed, you should have an njoy executable available that OpenMC can use.