Assume that you have a program that would take 20s to execute if you were running the program on infinitely many cores (if that was possible). Assume further that if you ran the program on 8 cores, you would get a speedup of 4. Assume also that N number of cores result in N times improvement for the part of the program that is possible to parallelize. What would then the speedup be if you executed the program on 20 cores? Assume that you have a program that would take 20s to execute if you were running the program on infinitely many cores (if that was possible). Assume further that if you ran the program on 8 cores, you would get a speedup of 4. Assume also that N number of cores result in N times improvement for the part of the program that is possible to parallelize. What would then the speedup be if you executed the program on 20 cores