MPI CART CREATE In the above example we use MPI CART CREATE to map 0,0(0) 0,1(1) or rename)6 processes from a linear ordering(0, 1, 2, 3, 4, 5) into a two-dimensional matrix ordering of 3 rows by 2 1,0(2 1,1(3) columns(ie.,(0,0),(0,1), 2,1) Figure 8.1(a)depicts the resulting cartesian grid representation for the 2,0(4) 2,1(5) processes. The index pair i, represent row"iand column j. The corresponding(inear) rank number is enclosed in Figure 8.1(a). Cartesian parentheses GridMPI_CART_CREATE • In the above example we use MPI_CART_CREATE to map (or rename) 6 processes from a linear ordering (0,1,2,3,4,5) into a two-dimensional matrix ordering of 3 rows by 2 columns ( i.e., (0,0), (0,1), ..., (2,1) ). • Figure 8.1 (a) depicts the resulting Cartesian grid representation for the processes. The index pair "i,j" represent row "i" and column "j". The corresponding (linear) rank number is enclosed in parentheses. 0,0 (0) 0,1 (1) 1,0 (2) 1,1 (3) 2,0 (4) 2,1 (5) Figure 8.1 (a). Cartesian Grid