OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › compile liddriven 2D with GPU error message › Reply To: compile liddriven 2D with GPU error message November 4, 2022 at 12:55 pm #6950 AdrianKeymaster You need to select nvcc as the compiler in config.mk. Compare e.g. the example config config/gpu_only.mk included in the release. I hope this helps!