Consider two different implementations of the same instruction set architecture. The instructions can be divided into three classes according to their CPI (class A, B, C). P1 with a clock rate of 2.5 GHz and CPIs of 1, 2, and 3, and P2 with a clock rate of 3 GHz and CPIs of 2, 2, 2. Given a program with a dynamic instruction count of 1.0E6 instructions divided into classes as follows: 30% class A, 30% class B, 40% class C, which implementation is faster?  What is the global CPI for each implementation?  Find the clock cycles required in both cases.

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A: 1)  Global CPI = Ci*Fi = 0.1*4+0.2*2+0.5*1+0.2*3 = 0.4+0.4+0.5+0.6 = 1.9

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Properties of different architectures

Software architectures are the blueprint of a software system. They consist of all components involved in a system, relations between various components, the environment of operation, and the principle used in designing the software. In other words, software architecture shows the organization of different software structures and helps understand their behavior.