# for i in $(seq 1 5); do time ./matrix_mult_16.o; done
        6.04 real         5.59 user         0.35 sys
        6.04 real         5.63 user         0.31 sys
        6.05 real         5.65 user         0.30 sys
        6.03 real         5.60 user         0.33 sys
        6.02 real         5.63 user         0.30 sys