Consider two different implementations of the same instructionset architecture.
The instructions can be divided into four classes according totheir CPI (classes A, B, C, and D).
P1 with a clock rate of 2.5 GHz and CPIs of 1, 2, 3, and 3, andP2 with a clock rate of 3 GHz and CPIs of 2, 2, 2, and 2.
Given a program with a dynamic instruction count of 1.0E6instructions divided into classes as follows:
10% class A, 20% class B, 50% class C, and 20% class D,
which is faster: P1 or P2?
a. What is the global CPI for each implementation?
b. Find the clock cycles required in both cases.
