COMPUTING CALCULATOR
Amdahls Law
A precise tool.
What is the Amdahls Law & How does it work?
Amdahl’s Law is a formula used to predict the overall speedup of a system that can be improved by speeding up only part of the system. It was developed by Gene Amdahl in 1967.
The law states that if (S) is the speedup factor of the entire system, (C) is the fraction of the system that can be improved (and thus runs faster), and (P) is the speedup factor of the part being improved, then:
S = frac{1}{C + frac{(1-C)}{P}}
C = fraction of the system that can be improved, P = speedup factor of the part being improved
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Frequently Asked Questions
What is Amdahl’s Law?
Amdahl’s Law is a formula used to predict the overall speedup of a system when only part of it can be improved.
How do I use this calculator?
Enter the fraction of the system that can be improved and the speedup factor of the improved part to calculate the overall system speedup.
What is the formula for Amdahl’s Law?
The formula is S = 1 / (C + (1 – C) / P), where S is the overall speedup, C is the fraction of the system that can be improved, and P is the speedup factor of the part being improved.
Can I use this calculator for any system?
Yes, you can use this calculator for any system where only a portion of it can be sped up to estimate the overall performance improvement.
What does C represent in Amdahl’s Law?
C represents the fraction of the system that can be improved and will run faster after optimization.
How do I interpret the result from this calculator?
The result is the overall speedup factor for the entire system. It indicates how much faster the system will run after improving a specific part of it.
Is Amdahl’s Law still relevant today?
Yes, Amdahl’s Law remains relevant as it helps in understanding the limits of performance improvement in systems where only certain parts can be optimized.
Results are for informational purposes only and do not constitute professional advice.