% mpicc -o bcast3 bcast3.c
% mpirun -np 4 bcast3
1 1.1
Process 0 got 1 and 1.100000
2 2.6
Process 0 got 2 and 2.600000
-1 1.0
Process 0 got -1 and 1.000000
Process 1 got 1 and 1.100000
Process 1 got 2 and 2.600000
Process 1 got -1 and 1.000000
Process 3 got 1 and 1.100000
Process 3 got 2 and 2.600000
Process 3 got -1 and 1.000000
Process 2 got 1 and 1.100000
Process 2 got 2 and 2.600000
Process 2 got -1 and 1.000000