----- "Yuanyuan ZHANG" <zhang.yuany...@jp.fujitsu.com> wrote:
> For an OpenMP/MPI hybrid program, if I only want to make MPI calls > using the main thread, ie., only in between parallel sections, can I just > use SINGLE or MPI_Init? If your MPI calls is NOT within OpenMP directives, MPI does not even know you are using threads. So calling MPI_Init is good enough. A.Chan
