Exercises

1

Rewrite program life_g to make use of MPI functions discussed in section 5.2.5 that talked about the diffusion program.

2

Rewrite program (1) so that the whole matrix is laid out onto a 2-dimensional grid of processes.

3

Rewrite program (2) to dump the whole matrix onto an MPI file at the end of its execution.

4

Rewrite program (3) to read the initial data from an MPI file if such a request is made on the command line. Otherwise the program should initialize the matrix as before.