Dear ET Users,

I'm a beginner attempting to follow the Jupyter tutorial for new users. I have been able to  successfully run the helloworld.par and tov_ET.par files with procs set to 1 but I'm having issues when I try to use multiple processors on my laptop.

I initially got this error saying "mpirun: not found", following which I installed Open MPI on my system. The error persisted, so I removed Open MPI and installed mpich instead. This seemingly fixed the issue, but I received another error saying "CACTUS_NUM_PROCS is set to 4 but there are 1 MPI processes"

I found one or two previous queries regarding this exact error, but the suggestions have not worked for me so far. Having never worked with MPI before, I am not sure what else I should try.

I'd be grateful for a few words of advice on this issue from anyone in the community.

Thank you in advance for your time.

Regards,

Praveer Krishna