ReLU Strikes Back: Exploiting Activation Sparsity in Large Language Models
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Abstract (arXiv)
Large Language Models (LLMs) with billions of parameters have drastically transformed AI applications. However, their demanding computation during inference has raised significant challenges for deployment on resource-constrained devices. Despite recent trends favoring alternative activation functions such as GELU or SiLU, known for increased computation, this study strongly advocates for reinstating ReLU activation in LLMs. We demonstrate that using the ReLU activation function has a negligible impact on convergence and performance while significantly reducing computation and weight transfer. This reduction is particularly valuable during the memory-bound inference step, where efficiency is paramount. Exploring sparsity patterns in ReLU-based LLMs, we unveil the reutilization of activated neurons for generating new tokens and leveraging these insights, we propose practical strategies to substantially reduce LLM inference computation up to three times, using ReLU activations with minimal performance trade-offs.
Key facts. Cited by 91 papers in the map (data through 7 Oct 2026). Builds on 69 of its 84 references that are in the map. First posted on arXiv 6 Oct 2023.
Builds on
69 of 84 references.
References · 69
- 2017Attention Is All You Needcited by 59,932
- 2015Deep Residual Learning for Image Recognitioncited by 51,809
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- 2023LLaMA: Open and Efficient Foundation Language Modelscited by 13,958
- 2015Distilling the Knowledge in a Neural Networkcited by 10,076
- 2020Measuring Massive Multitask Language Understandingcited by 7,768
- 2020Scaling Laws for Neural Language Modelscited by 6,411
- 2016Layer Normalizationcited by 5,579
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