MPI_Comm_size(MPI_COMM_WORLD, &size);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
+ start_timer = MPI_Wtime();
MPI_Barrier( MPI_COMM_WORLD );
+
MPI_Barrier( MPI_COMM_WORLD );
+ if (0 == rank) {
+ printf("... Barrier ....\n");
+ printf("Elapsed=%lf s\n", MPI_Wtime() - start_timer);
+ }
MPI_Finalize();
return 0;