Provided by: openmpi-doc_4.1.4-3ubuntu2_all
NAME
shmem_barrier_all - Suspends the execution of the calling PE until all other PEs issue a call to this particular shmem_barrier_all() statement.
SYNOPSIS
C or C++: #include <mpp/shmem.h> void shmem_barrier_all(void); Fortran: include 'mpp/shmem.h' CALL SHMEM_BARRIER_ALL
DESCRIPTION
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).
EXAMPLES
setup_data() { if (shmem_my_pe() == 0) { setup(); } /* All PEs wait for PE 0 to complete setup(). */ shmem_barrier_all(); }
SEE ALSO
shmem_barrier(3), shmem_init(3)