int MPI_Bcast(void*
message, int count, MPI_Datatype datatype, int root, MPI_Comm comm)
Called by all the
processes in the communicator with the same arguments for root and comm. A
broadcast message cannot be received with MPI Recv. Parameters count and
datatype have the same function that they have in MPI Send and MPI Recv.
However, unlike the point-to-point functions, MPI insists that in collective
communication count and datatype be the same on all the processes in the
communicator.