Consider two different implementations, P1 and P2, of the same instruction set There are five classes of instructions (A, B, C, D, and E) in the instruction set P1 has a clock rate of 4 GHz, and P2 has a clock rate of 6 GHz The average number of cycles for each instruction class for P1 and P2 are listed in the following table If the number of instructions executed in a certain program is divided equally among the five classes of instructions except for class A, which occurs twice as often as each of the others, how much faster is P2 than P1 a b P1 P2 P1 P2 CPI Class A CPI Class B CPI Class C CPI Class D CPI Class E 1 3 1 2 2 3 2 2 3 3 3 2 4 5 4 2 5 5 5 6

Question: Consider two different implementations, P1 and P2, of the same instruction set. There are five classes of instructions (A, B, C, D, and E) in

Consider two different implementations, P1 and P2, of the same instruction set. There are five classes of instructions (A, B, C, D, and E) in the instruction set. P1 has a clock rate of 4 GHz, and P2 has a clock rate of 6 GHz. The average number of cycles for each instruction class for P1 and P2 are listed in the following table. a. b. P1 P2 P1 P2 CPI Class A CPI Class B CPI Class C CPI Class D CPI Class E 1 3 1 2 2 3 2 2 3 3 3 2 4 5 4 2

If the number of instructions executed in a certain program is divided equally among the five classes of instructions except for class A, which occurs twice as often as each of the others, how much faster is P2 than P1?

a. b. P1 P2 P1 P2 CPI Class A CPI Class B CPI Class C CPI Class D CPI Class E 1 3 1 2 2 3 2 2 3 3 3 2 4 5 4 2 5 5 5 6

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