PLEASE I REALLY NEED HELP HERE , THANKS

6) Assume that following sparse matrix and vector multiplication is given. What is the number of processor(s) needed for the finest granularity? In the figure dots refer to zeros in those elements.

192 19 7) Given below is a row-wise decomposition of sparse matrix vector multiplication. For istance task 1 is the owner of the first two rows of matrix A and the first two rows of vector b. Draw task interaction graph of this problem. 13 9 3. 1: 42 taski task 2 3 1 9 1 13 21 . 1 . 17 2 47 1 81 219 task 3 9 19 H H task 4 19 8 16 task 5 192 19 7) Given below is a row-wise decomposition of sparse matrix vector multiplication. For istance task 1 is the owner of the first two rows of matrix A and the first two rows of vector b. Draw task interaction graph of this problem. 13 9 3. 1: 42 taski task 2 3 1 9 1 13 21 . 1 . 17 2 47 1 81 219 task 3 9 19 H H task 4 19 8 16 task 5