OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › gpu usage question › Reply To: gpu usage question March 6, 2023 at 12:49 pm #7269 AdrianKeymaster Yes, that is what I meant. I don’t get this error on our systems, did you already adapt the config to your OpenMPI setup (this could be one issue). Does it also occur for the basic GPU only config?