(Solved): Please provide the correct anwer? 2. Process Grids (1) Matrices are usually distributed using regula ...

2. Process Grids (1) Matrices are usually distributed using regular 2D block/cyclic distribution over a process grid of $\mathrm{PxQ}$ processes. Use the minimum number of MPI functions to create the row and column communicators (assuming $\mathrm{P}$ is provided) as indicated in the picture below. (2) Test the correctness by setting $\mathrm{PxQ}=2?2,2?3,3?3$, and $3^{?}4$.