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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 3 GHz clock rate and a CPI of 1.5. P2 has a 2.5 GHz clock rate and a CPI of 1.0. P3 has a 4.0 GHz clock rate and has a CPI of 2.2.

a. Find execution time for each processor for a program with 2 x 10 9 instructions. Which one is the fastest?

b. If the processors each execute a program in 10 seconds, find the number of instructions that they are running? We are trying to reduce the execution time by 20% but this leads to an increase of 10% in the CPI. What clock rate should we have to get this time reduction for each processor?

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venereology answered 1 year ago
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