OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › Heat transfer liquid-solid and heat conduction in solids › Reply To: Heat transfer liquid-solid and heat conduction in solids July 20, 2023 at 11:57 pm #7641 mathiasKeymaster Did you change the Makefile config (Parallel mode flag AND compiler) and recompile the entire code?