Exploration of Unary Arithmetic-Based Matrix Multiply Units for Low Precision DL Accelerators

Fuente: arXiv
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Auteurs principaux: Vellaisamy, Prabhu, Nair, Harideep, Wu, Di, Blanton, Shawn, Shen, John Paul
Format: Preprint
Publié: 2026
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author Vellaisamy, Prabhu
Nair, Harideep
Wu, Di
Blanton, Shawn
Shen, John Paul
author_facet Vellaisamy, Prabhu
Nair, Harideep
Wu, Di
Blanton, Shawn
Shen, John Paul
contents General matrix multiplication (GEMM) is a fundamental operation in deep learning (DL). With DL moving increasingly toward low precision, recent works have proposed novel unary GEMM designs as an alternative to conventional binary GEMM hardware. A rigorous evaluation of recent unary and binary GEMM designs is needed to assess the potential of unary hardware for future DL compute. This paper focuses on unary GEMM designs for integer-based DL inference and performs a detailed evaluation of three latest unary design proposals, namely, uGEMM, tuGEMM and tubGEMM, by comparing them to a conventional binary GEMM. Rigorous post-synthesis evaluations beyond prior works are performed across varying bit-widths and matrix sizes to assess the designs' tradeoffs and determine optimal sweetspots. Further, we perform weight sparsity analysis across eight pretrained convolutional neural networks (CNNs) and the LLaMA2 large language model (LLM). In this work, we demonstrate how unary GEMM can be effectively used for energy-efficient compute in future edge AI accelerators.
format Preprint
id arxiv_https___arxiv_org_abs_2602_00838
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Exploration of Unary Arithmetic-Based Matrix Multiply Units for Low Precision DL Accelerators
Vellaisamy, Prabhu
Nair, Harideep
Wu, Di
Blanton, Shawn
Shen, John Paul
Hardware Architecture
Artificial Intelligence
General matrix multiplication (GEMM) is a fundamental operation in deep learning (DL). With DL moving increasingly toward low precision, recent works have proposed novel unary GEMM designs as an alternative to conventional binary GEMM hardware. A rigorous evaluation of recent unary and binary GEMM designs is needed to assess the potential of unary hardware for future DL compute. This paper focuses on unary GEMM designs for integer-based DL inference and performs a detailed evaluation of three latest unary design proposals, namely, uGEMM, tuGEMM and tubGEMM, by comparing them to a conventional binary GEMM. Rigorous post-synthesis evaluations beyond prior works are performed across varying bit-widths and matrix sizes to assess the designs' tradeoffs and determine optimal sweetspots. Further, we perform weight sparsity analysis across eight pretrained convolutional neural networks (CNNs) and the LLaMA2 large language model (LLM). In this work, we demonstrate how unary GEMM can be effectively used for energy-efficient compute in future edge AI accelerators.
title Exploration of Unary Arithmetic-Based Matrix Multiply Units for Low Precision DL Accelerators
topic Hardware Architecture
Artificial Intelligence
url https://arxiv.org/abs/2602.00838