Consider two different implementations of the same instruction set architecture. The instructions can be divided into four classes according to their CPI (class A, B, C, and D). P1 with a clock rate of 2.5 GHz and CPIs of 1, 2, 3, and 3, and P2 with a clock rate of 3 GHz and CPIs of 2, 2, 2, and 2.

Suppose the run a program with a dynamic instruction count of 1.0x106instructions divided into classes as follows: 10% class A, 20% class B, 50% class C, and 20% class D.

a. How long does it take P1 to run the program?

_____ x 10^-3 seconds

b. How long does it take P2 to run the program?

_____ x 10^-3 seconds

c. What is the global CPI for P1?

_____

d. What is the global CPI for P2?

_____

e. How many clocks needed for P1?

_____ x 10^6

f. How many clocks needed for P2?

_____ x 10^6

Thank you!