Comment by synergy20

these days you have std::async(promise+future via channel), std::thread(e.g. pthread style) and coroutines in modern C++. my understanding is std::async is a simpler API for parallel coding, thread for finer grained control, while coroutine is running on one core|cpu by design thus it needs to work with threadpool(i.e. using std::thread) or something else to utilize all cores, unlike std::async or std::thread, both are multi-core ready.