Question SOLVED: Implement the butterfly barrier
This exercise is from Question 6-5 of the textbook at page 194.
Implement the butterfly barrier described in Section 6.1.4, assume the number of processes is a power of 2, e.g., 2, 4, 8, 16, etc.
Investigate the time taken by your butterfly barrier by using the code such as:
t1 = MPI_Wtime();
butterfly_barrier(); // call to your butterfly barrier
t2 = MPI_Wtime();
printf(“Elapsed time = %d seconds\n”, t2-t1);