Hi, I have been trying to use OpenACC to allow for cpu-based loop parallelization in GCC, however I cannot seem to get it working in either C or C++. The PGI C++ compiler will successfully compile and run parallel code. This stack overflow post has more details: https://stackoverflow.com/questions/61017223/compiling-c-openacc-parallel-cpu-code-using-gcc-g Thanks for any help, Lewis