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Floating-Point Operations Per Second (FLOPS)
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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