Broadcast

void Intracomm.Bcast(Object buffer, int offset, int count,
                     Datatype datatype, int root)

buf	buffer array
offset	initial offset in buffer
count	number of items in buffer
datatype	datatype of each item in buffer
dest	rank of broadcast root

Broadcast a message from the process with rank root to all processes of the group. Java binding of the MPI operation MPI_BCAST.