Q4 20-points CLO-2/PL0-1 [Cognitive Domain: Comprehension] a) A new version of a processor was designed. The voltage of this new version is dropped by 35% compared to the old version. This change resulted in increasing frequency by 10%. How much the dynamic power changed? Capacitance increased by 5% in new version. b) A program has 25% serial (sequential) part. How much speed-up can be achieved if number of processors are increased from 1 to 2,4 and 8? What will be the maximum possible speed-up? Assuming there is no communication overhead between master and slave processors. c) In a program, there are 500 load, 300 store, 200 branch and 200 arithmetic instructions. Assuming that arithmetic instructions take 1 cycle, load and store 5 cycles, and branches 3 cycles, what is the execution time of the program in a 3 GHz processor? Find the CPI for the program. If the number of load instructions can be reduced by one half, what is the speedup and the CPI? d) A nonpipelined system takes 100ns to process a task. The same task can be processed in a 5- segment pipeline with a clock cycle of 20ns. Determine the speedup ratio of the pipeline for 10,000 tasks. What is the maximum speedup that could be achieved with the pipeline unit over the nonpipelined unit