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Consider two different implementations of the same instruction set architecture. The instructions can be divided into four...

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Electrical Engineering

Consider two different implementations of the same instructionset architecture.

The instructions can be divided into four classes according totheir CPI (classes A, B, C, and D).

P1 with a clock rate of 2.5 GHz and CPIs of 1, 2, 3, and 3, andP2 with a clock rate of 3 GHz and CPIs of 2, 2, 2, and 2.

Given a program with a dynamic instruction count of 1.0E6instructions divided into classes as follows:

10% class A, 20% class B, 50% class C, and 20% class D,

which is faster: P1 or P2?

a. What is the global CPI for each implementation?

b. Find the clock cycles required in both cases.

Answer & Explanation Solved by verified expert
3.7 Ratings (710 Votes)
Total instructions 106 No of class A instructions 10100 106 105 No of class B instructions 20100 106 2105 No of class C instructions 50100 106 5105 No of class D instructions 20100 106 2 105    See Answer
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