1 Computer A has a 2GHz clock rate and runs a program in 30s. On computer B, the program has a half (1/2) of the number of cycles it has on computer A and runs in 10 seconds. The program has the same number of instructions for both computer A and computer B. It is only the number of cycles that is different. a) What is the clock rate for computer B ? b) What is the average CPI for computer A if the average CPI for computer B is 2 ? 2 Assume a program requires the execution of 25x 106FP instructions, 55106INT instructions, 40x 106L/S instructions and 8106Branch instructions. The CPI for each type of instruction is 1,1,4, and 2, respectively. Assume that the processor has a 4GHz clock rate. By how much must the CPI of L/S instructions be improved if the program is to run two times faster