Question: Consider three different processors P1, P2, and P3 executing the same instruction set. P1 has a 4.5GHz clock rate and a CPI of 1.5. P2

Consider three different processors P1, P2, and P3 executing the same instruction set. P1 has a 4.5GHz clock rate and a CPI of 1.5. P2 has a 3.4GHz clock rate and a CPI of 1.0. P3 has a 4.2GHz clock rate and a CPI of 2.1.

Which processor has the highest performance expressed in instructions per second? Provide that number (instructions per second for each processor) and show the steps you took to reach that number.

If the processors each execute a program in 10 seconds, find the number of cycles and the number of instructions.

We are trying to reduce the execution time by 30% but this leads to an increase of 20% in the CPI. What clock rate should we have to get this time reduction?

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