Function GetEffectiveNumThreads

src/colmap/util/threading.cc:299–310

}

int GetEffectiveNumThreads(const int num_threads) {
  int num_effective_threads = num_threads;
  if (num_threads <= 0) {
    num_effective_threads = std::thread::hardware_concurrency();
  }

  if (num_effective_threads <= 0) {
    num_effective_threads = 1;
  }

  return num_effective_threads;
}

}  // namespace colmap