PolyThrottle: Energy-efficient Neural Network Inference on Edge Devices: Arithmetic Intensity

Table of Links

• Abstract & Introduction
• Motivation
• Opportunities
• Architecture Overview
• Proble Formulation: Two-Phase Tuning
• Modeling Workload Interference
• Experiments
• Conclusion & References
• A. Hardware Details
• B. Experimental Results
• C. Arithmetic Intensity
• D. Predictor Analysis

C ARITHMETIC INTENSITY

The arithmetic intensity of a 2D convolution layer can be computed by the following equation:

The notations used in equation 1 can be found in table 8.

The FLOPs term captures the total computation of each workload, while the arithmetic intensity term captures how much computation power and memory bandwidth will affect the final performance. Combining the aforementioned features with an intercept term, which captures the fixed overhead in neural network inference, we can build a model that predicts inference latency if the hardware operating frequency is stable.