boostorg/mpi — pull request #22 by aminiussi (2014-10-28 13:56:27+00:00)
Title: Add a basic sendrecv that should be a direct transcription of the C interface

SendRecv is probably mostly relevant when used with Cartesian communicators. Still, it's probably simpler/cleaner to introduce them separately.
This is a simple translation of the C interface for the "simple" types and a async send/recv pair followed by a wait for more complex types.