What is Amdahl's law and how does it relate to parallel computing?

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What is Amdahl's law and how does it relate to parallel computing?

Amdahl's law is a formula that calculates the potential speedup of a program when running on multiple processors. It states that the overall speedup of a program is limited by the portion of the program that cannot be parallelized. In other words, if a program has a sequential portion that cannot be divided into smaller tasks, the maximum speedup achievable by parallel computing is limited by that sequential portion. Amdahl's law highlights the importance of identifying and optimizing the sequential parts of a program to achieve maximum performance in parallel computing.