OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › Modifying Parameters › Reply To: Modifying Parameters September 28, 2022 at 1:42 pm #6841 JijoParticipant Dear Adrian, I think the problem is in the geometry. But I am not an expert in OpenLB coding so I am not sure. In your previous reply, what do you mean by MPI? I ran the code using Ubuntu by my 4 core setup. Thanks, Anas