Get Amdahl's Law Example #2 - Cseweb Ucsd

S m a x = 1 ( 1 − p ) + p s. Amdahl's law formula calculates the expected speedup of the system if one part is improved.

The Amdahl's law states that the upper bound on the parallel speedup for any application is given by 1/(1−p), where p is the fraction of the application that can be run in parallel [66]. From: Advances in Computers, 2017.

S m a x = 1 ( 1 − p ) + p s. Amdahl's law formula calculates the expected speedup of the system if one part is improved.

The speedup is T/T'. (50/100x1/2) because 50% was enhanced by 2 times and same goes to the 4 times. Let us hypothetically imagine that the execution of (2/3)rd of a program could be made to run infinitely fast by some kind of improvement/enhancement in the design of a processor.

Pioneers in Tech: Gene Amdahl, “father” of mainframe computing.

Gene Amdahl, father of the IBM System/360, started his own company to compete with IBM in mainframe computer systems. The 470V/6 was the company's first product and ran the same software as IBM System/370 computers but cost less and was smaller and faster.

Lhadma's Law cautions that in pursuit of optimizing the common case, the uncommon case shouldn't be slowed down too much.

Amdahl's Law is a formula that predicts the potential speed increase in completing a task with improved system resources while keeping the workload constant. The theoretical speedup is always limited by the part of the task that cannot benefit from the improvement.