Problem with FreeCAD CFDOF Solver

[hooshsim]

I am trying to predict the torque and the pressure rise across a rotating fan inside a box using FreeCAD CFDOF solver. The model seems to be fine. A mesh has been generated without any problem. Can someone with CFD experience look at my model and see why the solver stops with the following message. I have also attached the simulation file for your review.
Thanks in advance.

Windows: 10, x64 with 4 parallel cores
FreeCAD: 0.20.2
OPENFOAM: 2206

[herbk]

Try to swith to only 1 prozessor.

[hooshsim]

How do I switch it to one processor. Newbie here. Thanks

[herbk]

Select the solver at the object tree and set Parallel to false.

[hooshsim]

Thanks, Herbk. That was an easy one. Will give it a try

[hooshsim]

It’s working now. Thanks to Herbk. Wish I could use all my cores to speed up the run. Any suggestions here?

[herbk]

No...
It's since a while, - me and others have the same prob.

[hooshsim]

One more question Herbk. How do you get the fan torque and pressure at the inlet or outlet?

[oliveroxtoby]

It’s working now. Thanks to Herbk. Wish I could use all my cores to speed up the run. Any suggestions here?

It looks like you are missing MPI on your system. Try to install a package like 'openmpi'.

[hooshsim]

Thanks, Oliver. Two related questions!
1. Will installation openmpi cause any problem with other software utilizing parallel cores on my computer?
2. Why I am not getting post processing folder after a successful run? I see other folders like “constant and system”.
Thanks again