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shmem_barrier_all - Suspends the execution of the calling PE until all other PEs issue a call to this particular shmem_barrier_all() statement.

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 <#shmem-put32>(3).

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)


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