CPU pinning =========== You can pin the child processes of :obj:`mpire.WorkerPool` to specific CPUs by using the ``cpu_ids`` parameter in the constructor: .. code-block:: python # Pin the two child processes to CPUs 2 and 3 with WorkerPool(n_jobs=2, cpu_ids=[2, 3]) as pool: ... # Pin the child processes to CPUs 40-59 with WorkerPool(n_jobs=20, cpu_ids=list(range(40, 60))) as pool: ... # All child processes have to share a single core: with WorkerPool(n_jobs=4, cpu_ids=[0]) as pool: ... # All child processes have to share multiple cores, namely 4-7: with WorkerPool(n_jobs=4, cpu_ids=[[4, 5, 6, 7]]) as pool: ... # Each child process can use two distinctive cores: with WorkerPool(n_jobs=4, cpu_ids=[[0, 1], [2, 3], [4, 5], [6, 7]]) as pool: ... CPU IDs have to be positive integers, not exceeding the number of CPUs available (which can be retrieved by using :meth:`mpire.cpu_count`). Use ``None`` to disable CPU pinning (which is the default). .. note:: Pinning processes to CPU IDs doesn't work when using threading.