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Difference between revisions of "flops"

(a note on SMP and MP)
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:<math>\text{FLOPS}_\text{core} = \frac{\text{FLOPs}}{\text{cycle}} \times \frac{\text{cycles}}{\text{second}}</math>
 
:<math>\text{FLOPS}_\text{core} = \frac{\text{FLOPs}}{\text{cycle}} \times \frac{\text{cycles}}{\text{second}}</math>
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With the advent of [[multi-socket]] and [[multi-core]] architectures, additional levels of explicit parallelism have been introduced resulting in the following modified equation:
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:<math>\text{FLOPS}_\text{system} = \frac{\text{FLOPs}}{\text{cycle}} \times \frac{\text{cycles}}{\text{second}} \times \frac{\text{cores}}{\text{node}} \times \frac{\text{nodes}}{\text{system}}</math>

Revision as of 02:31, 22 September 2018

Floating-point operations per second (FLOPS) is a microprocessor performance unit used to quantify the number of floating-point operations a core, machine, or system is capable of in a one second.

Overview

FLOPS are a measure of performance used for comparing the peak theoretical performance of a core, microprocessor, or system using floating point operations. This unit is often used in the field of high-performance computing (e.g., supercomputers) in order to evaluate the peak theoretical performance of various scientific workloads. Traditionally, the FLOPS of a microprocessor could be calculated using the following equation:

Equation FLOPS Subscript core Baseline equals StartFraction FLOPs Over cycle EndFraction times StartFraction cycles Over second EndFraction

With the advent of multi-socket and multi-core architectures, additional levels of explicit parallelism have been introduced resulting in the following modified equation:

Equation FLOPS Subscript system Baseline equals StartFraction FLOPs Over cycle EndFraction times StartFraction cycles Over second EndFraction times StartFraction cores Over node EndFraction times StartFraction nodes Over system EndFraction