Explore Activation Sparsity in Recurrent LLMs for Energy-Efficient Neuromorphic Computing

Fuente: arXiv
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Autores principales: Knunyants, Ivan, Tavakol, Maryam, Sifalakis, Manolis, Xu, Yingfu, Yousefzadeh, Amirreza, Tang, Guangzhi
Formato: Preprint
Publicado: 2025
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author Knunyants, Ivan
Tavakol, Maryam
Sifalakis, Manolis
Xu, Yingfu
Yousefzadeh, Amirreza
Tang, Guangzhi
author_facet Knunyants, Ivan
Tavakol, Maryam
Sifalakis, Manolis
Xu, Yingfu
Yousefzadeh, Amirreza
Tang, Guangzhi
contents The recent rise of Large Language Models (LLMs) has revolutionized the deep learning field. However, the desire to deploy LLMs on edge devices introduces energy efficiency and latency challenges. Recurrent LLM (R-LLM) architectures have proven effective in mitigating the quadratic complexity of self-attention, making them a potential paradigm for computing on-edge neuromorphic processors. In this work, we propose a low-cost, training-free algorithm to sparsify R-LLMs' activations to enhance energy efficiency on neuromorphic hardware. Our approach capitalizes on the inherent structure of these models, rendering them well-suited for energy-constrained environments. Although primarily designed for R-LLMs, this method can be generalized to other LLM architectures, such as transformers, as demonstrated on the OPT model, achieving comparable sparsity and efficiency improvements. Empirical studies illustrate that our method significantly reduces computational demands while maintaining competitive accuracy across multiple zero-shot learning benchmarks. Additionally, hardware simulations with the SENECA neuromorphic processor underscore notable energy savings and latency improvements. These results pave the way for low-power, real-time neuromorphic deployment of LLMs and demonstrate the feasibility of training-free on-chip adaptation using activation sparsity.
format Preprint
id arxiv_https___arxiv_org_abs_2501_16337
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Explore Activation Sparsity in Recurrent LLMs for Energy-Efficient Neuromorphic Computing
Knunyants, Ivan
Tavakol, Maryam
Sifalakis, Manolis
Xu, Yingfu
Yousefzadeh, Amirreza
Tang, Guangzhi
Neural and Evolutionary Computing
Artificial Intelligence
Hardware Architecture
Machine Learning
The recent rise of Large Language Models (LLMs) has revolutionized the deep learning field. However, the desire to deploy LLMs on edge devices introduces energy efficiency and latency challenges. Recurrent LLM (R-LLM) architectures have proven effective in mitigating the quadratic complexity of self-attention, making them a potential paradigm for computing on-edge neuromorphic processors. In this work, we propose a low-cost, training-free algorithm to sparsify R-LLMs' activations to enhance energy efficiency on neuromorphic hardware. Our approach capitalizes on the inherent structure of these models, rendering them well-suited for energy-constrained environments. Although primarily designed for R-LLMs, this method can be generalized to other LLM architectures, such as transformers, as demonstrated on the OPT model, achieving comparable sparsity and efficiency improvements. Empirical studies illustrate that our method significantly reduces computational demands while maintaining competitive accuracy across multiple zero-shot learning benchmarks. Additionally, hardware simulations with the SENECA neuromorphic processor underscore notable energy savings and latency improvements. These results pave the way for low-power, real-time neuromorphic deployment of LLMs and demonstrate the feasibility of training-free on-chip adaptation using activation sparsity.
title Explore Activation Sparsity in Recurrent LLMs for Energy-Efficient Neuromorphic Computing
topic Neural and Evolutionary Computing
Artificial Intelligence
Hardware Architecture
Machine Learning
url https://arxiv.org/abs/2501.16337