New to LBM and OpenLB? Attend our upcoming one-week hands-on Spring School in Marseille/France from 19.05.2025 – 23.05.2025. OpenLB – Open Source Lattice Boltzmann Code › Forums › on 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.