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2. Consider two different implementations of the same instruction set architecture. The instructions can be divided into four classes according to their CPI (class A,

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2. 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. Given a program with a dynamic instruction count of 1.0E6 instructions divided into classes as follows: 10% class A, 20% class B, 50% class C, and 20% class D, which is faster: P1 or P2? (2 points) a. What is the average CPI for each implementation? (2 points) b. Find the clock cycles required in both cases. (2 points)

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