The following table shows the instruction type breakdown per processor of given applications executed in different numbers
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 2 GHz clock rate.
How much must we improve the CPI of L/S instructions if we want the program to run two times faster?
Transcribed Image Text:
a. b. Processors 2 16 FP Instr. 280 x 106 50 x 10⁰ 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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To make the program run two times faster we need to achieve a speedup of 2 Since speedup is inversely proportional to execution time it can be calcula...View the full answer
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Related Book For
Computer Organization And Design The Hardware Software Interface
ISBN: 9780123747501
4th Revised Edition
Authors: David A. Patterson, John L. Hennessy
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