madmpi: fix MPI_*recv with MPI_PROC_NULL
MPI 4.0 states A receive from MPI_PROC_NULL succeeds and returns as soon as possible with no modifications to the receive buffer. (bottom of page 101).
It is already correctly managed for MPI_*send.
La mise à jour de gitlab est terminée. Nous sommes désormais en version 16.11.1
Merci de consulter la release note:
https://about.gitlab.com/releases/2024/04/18/gitlab-16-11-released/
MPI 4.0 states A receive from MPI_PROC_NULL succeeds and returns as soon as possible with no modifications to the receive buffer. (bottom of page 101).
It is already correctly managed for MPI_*send.