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Large Language Models (LLMs) increasingly require processing long text sequences, but GPU memory limitations force difficult trade-offs between memory capacity and bandwidth. While HBM-based acceleration offers high bandwidth, its capacity…

Hardware Architecture · Computer Science 2025-04-25 Qingyuan Liu , Liyan Chen , Yanning Yang , Haocheng Wang , Dong Du , Zhigang Mao , Naifeng Jing , Yubin Xia , Haibo Chen

Generating texts with a large language model (LLM) consumes massive amounts of memory. Apart from the already-large model parameters, the key/value (KV) cache that holds information about previous tokens in a sequence can grow to be even…

Hardware Architecture · Computer Science 2023-06-12 Yunho Jin , Chun-Feng Wu , David Brooks , Gu-Yeon Wei

Large Language Models (LLMs) have demonstrated exceptional benefits to a wide range of domains, for tasks as diverse as code generation and robot navigation. While LLMs are usually served from cloud data centers, mission-critical and…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-06-13 Mayank Arya , Yogesh Simmhan

LLM inference exhibits substantial variability across queries and execution phases, yet inference configurations are often applied uniformly. We present a measurement-driven characterization of workload heterogeneity and energy-performance…

Machine Learning · Computer Science 2026-02-25 Paul Joe Maliakel , Shashikant Ilager , Ivona Brandic

The rapid growth of LLMs has revolutionized natural language processing and AI analysis, but their increasing size and memory demands present significant challenges. A common solution is to spill over to CPU memory; however, traditional…

Machine Learning · Computer Science 2024-11-15 Yi Xu , Ziming Mao , Xiangxi Mo , Shu Liu , Ion Stoica

Deep Learning (DL) models have achieved superior performance. Meanwhile, computing hardware like NVIDIA GPUs also demonstrated strong computing scaling trends with 2x throughput and memory bandwidth for each generation. With such strong…

Distributed, Parallel, and Cluster Computing · Computer Science 2022-05-26 Fuxun Yu , Di Wang , Longfei Shangguan , Minjia Zhang , Chenchen Liu , Xiang Chen

Transformer-based large language models (LLMs) demonstrate impressive performance in long context generation. Extending the context length has disproportionately shifted the memory footprint of LLMs during inference to the key-value cache…

Machine Learning · Computer Science 2025-02-19 Cheng Luo , Zefan Cai , Hanshi Sun , Jinqi Xiao , Bo Yuan , Wen Xiao , Junjie Hu , Jiawei Zhao , Beidi Chen , Anima Anandkumar

Large Language Models (LLMs) face challenges for on-device inference due to high memory demands. Traditional methods to reduce memory usage often compromise performance and lack adaptability. We propose FlexInfer, an optimized offloading…

Operating Systems · Computer Science 2025-03-07 Hongchao Du , Shangyu Wu , Arina Kharlamova , Nan Guan , Chun Jason Xue

Large language models (LLMs) have shown remarkable performance across a wide range of applications, often outperforming human experts. However, deploying these gigantic models efficiently for diverse inference use cases requires carefully…

Large language model (LLM) inference is limited by high computational cost and memory bandwidth demands, making deployment on heterogeneous many-core processors challenging. Taking the MT-3000 processor used in the Tianhe supercomputer as…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-05-26 Yao Lu , Zhongzhi Luan , Gen Li , Jiaxing Qi , Shiqing Ma , Bin Han , Shizhe Shang , Hailong Yang , Depei Qian

Diffusion large language models (dLLMs) are emerging as a promising alternative to autoregressive models (ARMs) due to their ability to capture bidirectional context and the potential for parallel generation. Despite the advantages, dLLM…

Machine Learning · Computer Science 2026-03-12 Zijian Zhu , Fei Ren , Zhanhong Tan , Kaisheng Ma

Large Language Models (LLMs) have demonstrated remarkable capabilities in handling long context inputs, but this comes at the cost of increased computational resources and latency. Our research introduces a novel approach for the long…

Computation and Language · Computer Science 2024-09-27 Zhenmei Shi , Yifei Ming , Xuan-Phi Nguyen , Yingyu Liang , Shafiq Joty

Large Language Models (LLMs) are increasingly deployed in production, contributing towards shifting the burden in terms of computational resources and energy demands from training to inference. While prior work has examined the energy cost…

Machine Learning · Computer Science 2026-02-02 Julien Delavande , Regis Pierrard , Sasha Luccioni

This paper addresses the growing need for efficient large language models (LLMs) on mobile devices, driven by increasing cloud costs and latency concerns. We focus on designing top-quality LLMs with fewer than a billion parameters, a…

Recent studies have extensively explored NPU architectures for accelerating AI inference in on-device environments, which are inherently resource-constrained. Meanwhile, transformer-based large language models (LLMs) have become dominant,…

Hardware Architecture · Computer Science 2026-02-16 Jonghun Lee , Junghoon Lee , Hyeonjin Kim , Seoho Jeon , Jisup Yoon , Hyunbin Park , Meejeong Park , Heonjae Ha

Large language models (LLMs) power many state-of-the-art systems in natural language processing. However, these models are extremely computationally expensive, even at inference time, raising the natural question: when is the extra cost of…

Machine Learning · Computer Science 2023-05-05 Deepak Narayanan , Keshav Santhanam , Peter Henderson , Rishi Bommasani , Tony Lee , Percy Liang

Large language model (LLM) inference has been a prevalent demand in daily life and industries. The large tensor sizes and computing complexities in LLMs have brought challenges to memory, computing, and databus. This paper proposes a…

Hardware Architecture · Computer Science 2025-09-19 Yimin Wang , Yue Jiet Chong , Xuanyao Fong

Deploying Large Language Models (LLMs) on mobile devices makes all the capabilities of natural language processing available on the device. An important use case of LLMs is question answering, which can provide accurate and contextually…

Computer Vision and Pattern Recognition · Computer Science 2024-04-25 Hannes Fassold

Graphics Processing Units (GPUs) have become the leading hardware accelerator for deep learning applications and are used widely in training and inference of transformers; transformers have achieved state-of-the-art performance in many…

Hardware Architecture · Computer Science 2024-05-03 Andy He , Darren Key , Mason Bulling , Andrew Chang , Skyler Shapiro , Everett Lee

The operational landscape of local Large Language Model (LLM) inference has shifted from lightweight models to datacenter-class weights exceeding 70B parameters, creating profound systems challenges for consumer hardware. This paper…

Performance · Computer Science 2026-05-05 Abdurrahman Javat , Allan Kazakov