Dear developers,

When trying to run the snappyHexmesh trough

mpirun -np 8 snappyHexMesh -parallel -overwrite

or foam with, e.g.,

mpirun -np 8 interFoam -parallel

I get the error

--> FOAM FATAL ERROR: (openfoam-2406)
The dummy Pstream library cannot be used in parallel mode


    From static bool Foam::UPstream::init(int &, char **&, const bool)
    in file UPstream.C at line 49.

FOAM exiting

repeated np times. I'm using the openfoam2406-app-arm64 manually installed on a MacBook Pro 14 M2 max on MACOS Sonoma.

The error does not happen when building from source. However, the installation from source messes with my MPICH installation, so I went with the app instead.

Is there any local config that I need to revise?

Thanks in advance.