Question
Calculate the CPI on these 2 problems a) Assume a program has a base CPI of 1, and is 20% branches. The branch predictor has
Calculate the CPI on these 2 problems
a) Assume a program has a base CPI of 1, and is 20% branches. The branch predictor has an accuracy of 90%, and a 3 cycle miss penalty. (There is no penalty if it is correct.) What will the CPI of your program be, including cycles due to miss penalties?
b) A program has a base CPI of 1. It is 50% r-type instructions, 30% load-stores, and 20% branches. 25% of r-type instructions follow a load instruction that they depend on. The branch predictor is 80% accurate. There is a 1-cycle penalty for data hazards, and a 2-cycle penalty for mis-predicted branches. What is the CPI of the program?
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Directions In Databases 12th British National Conference On Databases Bncod 12 Guildford United Kingdom July 6 8 1994 Proceedings Lncs 826
Authors: David S. Bowers
1994th Edition
3540582355, 978-3540582359
