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Consider three different processors P1, P2, and P3 executing the same instruction set. P1 has a...

Consider three different processors P1, P2, and P3 executing the same instruction set. P1 has a 2.5 GHz clock rate and a CPI of 1.25. P2 has a 3 GHz clock rate and a CPI of 1.6. P3 has a 4.0 GHz clock rate and has unknown CPI. a. (5 points) Compare the performance of P1 and P2 in terms of number of instructions they can execute per second. b. (5 points) Program X is executed by P1 in 20 seconds. How long does it take for P2 to execute the same program? c. (5 points) If P3 executes program X in 15 seconds, find the CPI of the processor P3.

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