MPI_Probe(3) on Linux
The text 28d95d050f47, as Debian 13 (Trixie), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy) shipped it.
Blocking test for a message
The text 28d95d050f47, as Debian 13 (Trixie), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy) shipped it.
Blocking test for a message