Computer Design cpe 432 Homework 1 1 Chip Fabrication Cost


Speedup = 1 / ((1-f) + f/s)



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Speedup = 1 / ((1-f) + f/s)

= 1 / ((1-0.6) + 0.6/2)

= 1 / (0.4 + 0.3)

= 1.43


  1. Given that 95% of the second application is parallelizable, how much speedup would this application observe if run in isolation?

Speedup = 1 / ((1-f) + f/s)

= 1 / ((1-095) + 0.95/2)

= 1 / (0.05 + 0.475)

= 1.90


  1. Given that 60% of the first application is parallelizable, how much overall system speedup would you observe if you parallelized it, but not the second application?

System Speedup = 1 / ((1-f) + f/s)

= 1 / (0.25 + 0.75/1.43)

= 1 / (0.25 + 0.52)

= 1.29


  1. How much overall system speedup would you achieve if you parallelized both applications, given the information in parts (a) and (b)?


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