The main issue with OpenMP is that Apple ships a crippled version of Clang that does not support it by default. If you are developing on Mac, OpenMP should be c

The main issue with OpenMP is that Apple ships a crippled version of Clang that does not support it by default. If you are developing on Mac, OpenMP should be considered an external dependency, with all the unpleasantness that means in a C++ project. If you have students writing code and the target environment is Linux, as is common in the academia, replacing OpenMP with something portable can be a good idea. Also, a thread pool that supports the equivalent of: #pragma omp parallel for schedule(static) and #pragma omp parallel for schedule(dynamic, 1) if often good enough for scientific computing. There is surprisingly little need for all the fancy things software engineers have invented because their threads have to communicate every minute.