Barrier Synchronization



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Barrier Synchronization

  synchronizationbarrier

 MPI_BARRIER(comm)
   IN       comm             communicator
MPI_Barrier(MPI_Comm comm)

MPI_BARRIER(COMM, IERROR) INTEGER COMM, IERROR

MPI_BARRIER blocks the caller until all group members have called it. The call returns at any process only after all group members have entered the call.



Jack Dongarra
Fri Sep 1 06:16:55 EDT 1995