Question: Consider three processors P1, P2, and P3 executing a program consisting of 2 10^9 instructions. The specifications of these three processors are listed as follows:

Consider three processors P1, P2, and P3 executing a program consisting of 2 10^9 instructions. The specifications of these three processors are listed as follows:

Processor Frequency (GHz) CPI
P1 1 2
P2 2 3
P3 4 5

(a) How many seconds does each processor need to take to execute this program?

(b) For each processor, we are trying to reduce the execution time by 20%, but this leads to an increase of 25% in the CPI. What are the new clock rates for these three processors?

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