1. Determine whether the communication time derived in Section XXXXXXXXXXhas a minimum value when the size of the submatrices is variable. 2. Modify the recursive matrix multiplication algorithm to...

1. Determine whether the communication time derived in Section 11.2.2 has a minimum value when the size of the submatrices is variable.

2. Modify the recursive matrix multiplication algorithm to cope with n × n matrices, where n is not a power of 2.