OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › Bug Reports › Segmentation fault › Reply To: Segmentation fault October 22, 2021 at 3:09 pm #6085 AdrianKeymaster While a segfault should of course not occur and points to some problem in the library, it is hard to pin down without seeing your exact code. Did you already compile in unoptimized debug mode and extract a backtrace of the issue?