Question: The following table shows the instruction type breakdown per processor of given applications executed in different numbers of processors. Assume that each processor has a

The following table shows the instruction type breakdown per processor of given applications executed in different numbers of processors. a. b. Processors 2 16 FP Instr. 280 x 106 50 x 10 INT Instr. 1000 x 16 110 x 10 L/S Instr. 640 x 106 80 x 106

Assume that each processor has a 2 GHz clock rate.

How much must we improve the CPI of FP instructions if we want the program to run two times faster?

a. b. Processors 2 16 FP Instr. 280 x 106 50 x 10 INT Instr. 1000 x 16 110 x 10 L/S Instr. 640 x 106 80 x 106 Branch Instr. 128 x 106 16 x 10 CPI CPI CPI (FP) (INT) (L/S) 1 1 4 1 1 4 CPI (Branch) 2 2

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