Do you have manual solution for this book? I have also a question Consider three

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Do you have manual solution for this book?

I have also a question

Consider three different processors P1, P2, and P3 executing the same instruction set with the clock rates and CPIs given in the following table. Which processor has the highest performance expressed in instructions per second? 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 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? For problems below, use the information in the following table. Find the IPC (instructions per cycle) for each processor. Find the clock rate for P2 that reduces its execution time to that of P1. Find the number of instructions for P2 that reduces its execution time to that of P3.

Explanation / Answer

1.3 )

1.3.1)performance = clock freq / cpi

by this the answer is p2 and p2

1.3.2) instructions per sec = clock freq / cpi

thus no. of instr = clock freq * time / cpi

and cycles = cpi * no. of instr = clock freq * time

thus no. of instr and cycles are as follows

set 1:

18Ghz 27Ghz

22.5Ghz and 22.5Ghz

16.3Ghz and 36Ghz

set 2:

15Ghz and 18Ghz

33.75Ghz and 27Ghz

18Ghz and 36Ghz

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