Question: Y=2 Z=2 (b) A benchmark program is executed on a 9-computer cluster. The benchmark program takes a total of time to run on this cluster.

Y=2 Z=2 (b) A benchmark program is executed on a 9-computer

Y=2

Z=2

(b) A benchmark program is executed on a 9-computer cluster. The benchmark program takes a total of time to run on this cluster. It was found that during 28.2% of time T, the benchmark program was running simultaneously on all nine computers, whereas in the remaining time the benchmark program was running only on a single computer. (1) ( Evaluate the improvement in performance by determining the effective speedup of the 9-computer cluster as compared a single computer. (4 marks) 11 () Parallel processing is only effective if the code of an application is optimized for it. Conclude if the parallelization of the code in the benchmark program is optimum by determining the percentage of code that has been parallelized. (5 marks) (Total: 25 marks)

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