Subject
Computer Science
Topic
Computer Hardware
Amdahl’s Law best explains which performance reality when parallelizing workloads?
Amdahl’s Law best explains which performance reality when parallelizing workloads?
ক)
Linear speedup with more coresখ)
Diminishing returns due to the serial fractionগ)
GPU always outperforms CPUঘ)
Clock speed is irrelevantExplanation
Amdahl’s Law says speedup ≤ 1 /((1−P)+P/S), where P is parallel portion and S is speedup on that part. Even tiny serial parts cap total speedup as cores increase. It guides investment between parallelization and reducing serial bottlenecks. Always measure the true serial fraction.Related questions
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