Q-7: Calculate the speedup using Amdahl's law if a process, due to data dependency, runs serially for 20% but can be parallelized by 80% running on N=4 cores? - If there are 400 units and 20 serial units run 80% of the time which equals 40 units. So to calculate the duration we do 20/10=2 units of time. - Total duration =80+2+82 - Speedup =400/82=