Due to recent bot attacks we have changed the sign-up process. If you want to participate in our forum please send a message via our contact form. › Forums › OpenLB › General Topics › gpu usage question › Reply To: gpu usage question March 6, 2023 at 12:43 pm #7268 H.YuParticipant what is mean ‘case’ ? i’m using cylinder3D example and gpu_openmpi.mk