Conda provided OpenMC does not have MPI enabled

[ysavtchouk-pf]

Following the installation guide: https://docs.openmc.org/en/latest/quickinstall.html#installing-on-linux-mac-with-mamba-and-conda-forge and package documentations:

https://anaconda.org/conda-forge/openmc ... Parallelism is enabled via a hybrid MPI and OpenMP programming model. However, looking at the acquired library, I don't see any dependency on libmpi or similar. This seems to be confirmed by practical experiments running in parallel with mpiexec https://docs.openmc.org/en/latest/usersguide/parallel.html#distributed-memory-parallelism-mpi Logs don't provide any insights either (i.e. are we running in parallel or not), unfortunately