*Thenable* `Future` subclass.

MPI-based asynchronous executor.

Intracommunicator class with scalable, point-to-point based implementations of global reduction operations.

Context manager for `MPIPoolExecutor`. This context manager splits a MPI (intra)communicator in two disjoint sets: a single master process an

Result type of `map_async()` and `starmap_async()`.

Message.

`MPIPoolExecutor` subclass using a pool of processes.

Request.

`MPIPoolExecutor` subclass using a pool of threads.

Result type of `apply_async()`.

Condition variable.

Global counter.

Mutual exclusion.

Pool using MPI processes as workers.

Runtime configuration options. Attributes ---------- initialize : bool Automatic MPI initialization at import (default: True).

Sequential execution

Support for large message counts.

Asynchronous result.