matmult.c - simple BSP matrix multiplication.   Number of processes
must be a perfect square.  For nxn matrices, n % sqrt(p) must equal
zero.  Aside from input & output, this takes 2*(sqrt(p)-1) supersteps.
Input is "matrix.dat", output is "out.dat".

genMatrix.c - generates random matrices for input.  For 2 100x100
matrices, use:
		% genMatrix 2 100 > matrix.dat

matmultSeq.c - sequential matmult to check correctness.  Input is
"matrix.dat", output is "outSeq.dat".
