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Objective: Experiment with send/receive
Run either program for PI. Write new versions that replace the calls to
MPI_Bcast and MPI_Reduce with MPI_Send and
MPI_Recv.
127 The MPI broadcast and reduce operations use at most 
send and
receive operations on each process
where p is the size of MPI_COMM_WORLD. How many operations do your
versions use?
Up: Sending and Receiving messages
Next: Exercise - Ring
Previous: C example (cont.)