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 › Multiple GPU compiler error: cannot find -lmpi_cxx: No such file or director › Reply To: Multiple GPU compiler error: cannot find -lmpi_cxx: No such file or director June 26, 2024 at 6:28 am #8860 thanhphatvtParticipant Hi Alex, Thank you so much! Let me try it.