1. Write code to implement an eight-process barrier using the tree construction described in Section 6.1.3 and compare with any available barrier calls (e.g., in MPI MPI_Barrier()). 2. Implement the...

1. Write code to implement an eight-process barrier using the tree construction described in Section 6.1.3 and compare with any available barrier calls (e.g., in MPI MPI_Barrier()).

2. Implement the butterfly barrier described in Section 6.1.4, and compare with any available barrier calls.