C or C++:

       2003-2025, The Open MPI Community

                                                  Jun 07, 2025                              SHMEM_BARRIER_ALL(3)

       The  shmem_barrier_all  routine does not return until all other PEs have entered this routine at the same
       point of the execution path.

       Prior to synchronizing with other PEs, shmem_barrier_all ensures  completion  of  all  previously  issued
       local memory stores and remote memory updates issued via SHMEM functions such as shmem_put32(3).

          setup_data()
          {
            if (shmem_my_pe() == 0) {
              setup();
            }

            /* All PEs wait for PE 0 to complete setup().  */
            shmem_barrier_all();
          }

       SEEALSO:shmem_barrier(3) shmem_init(3)

       C or C++:

          #include <mpp/shmem.h>

          void shmem_barrier_all(void)

       Fortran:

          include 'mpp/shmem.h'

          CALL SHMEM_BARRIER_ALL