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Large language models (LLMs) have revolutionized numerous applications, yet their deployment remains challenged by memory constraints on local devices. While scaling laws have enhanced LLM capabilities, the primary bottleneck has shifted…

Computation and Language · Computer Science 2025-02-18 Xinghao Wang , Pengyu Wang , Bo Wang , Dong Zhang , Yunhua Zhou , Xipeng Qiu

Neural networks have become dominant computational workloads across cloud and edge platforms, but their rapid growth in model size and deployment diversity has exposed hardware bottlenecks increasingly dominated by memory movement,…

Systems and Control · Electrical Eng. & Systems 2026-01-16 Bin Xu , Ayan Banerjee , Sandeep Gupta

Large Language Model (LLM) workloads have distinct prefill and decode phases with different compute and memory requirements which should ideally be accounted for when scheduling input queries across different LLM instances in a cluster.…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-01-08 Kunal Jain , Anjaly Parayil , Ankur Mallick , Esha Choukse , Xiaoting Qin , Jue Zhang , Íñigo Goiri , Rujia Wang , Chetan Bansal , Victor Rühle , Anoop Kulkarni , Steve Kofsky , Saravan Rajmohan

In modern large language models (LLMs), handling very long context lengths presents significant challenges as it causes slower inference speeds and increased memory costs. Additionally, most existing pre-trained LLMs fail to generalize…

Computation and Language · Computer Science 2025-02-14 Heejun Lee , Geon Park , Jaduk Suh , Sung Ju Hwang

Cost of serving large language models (LLM) is high, but the expensive and scarce GPUs are poorly efficient when generating tokens sequentially, unless the batch of sequences is enlarged. However, the batch size is limited by some…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-03-19 Jiaao He , Jidong Zhai

The deployment of large language models (LLMs) presents significant challenges due to their enormous memory footprints, low arithmetic intensity, and stringent latency requirements, particularly during the autoregressive decoding stage.…

Hardware Architecture · Computer Science 2025-11-03 Cenlin Duan , Jianlei Yang , Rubing Yang , Yikun Wang , Yiou Wang , Lingkun Long , Yingjie Qi , Xiaolin He , Ao Zhou , Xueyan Wang , Weisheng Zhao

The widespread adoption of Large Language Models (LLMs) has exponentially increased the demand for efficient serving systems. With growing requests and context lengths, key-value (KV)-related operations, including attention computation and…

Hardware Architecture · Computer Science 2026-02-13 Lian Liu , Shixin Zhao , Yutian Zhou , Yintao He , Mengdi Wang , Yinhe Han , Ying Wang

Large Language Models (LLMs) today are powerful problem solvers across many domains, and they continue to get stronger as they scale in model size, training set size, and training set quality, as shown by extensive research and…

With the fast growth of parameter size, it becomes increasingly challenging to deploy large generative models as they typically require large GPU memory consumption and massive computation. Unstructured model pruning has been a common…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-09-20 Haojun Xia , Zhen Zheng , Yuchao Li , Donglin Zhuang , Zhongzhu Zhou , Xiafei Qiu , Yong Li , Wei Lin , Shuaiwen Leon Song

With the wide adoption of language models for IR -- and specifically RAG systems -- the latency of the underlying LLM becomes a crucial bottleneck, since the long contexts of retrieved passages lead large prompts and therefore, compute…

Information Retrieval · Computer Science 2026-04-06 Cornelius Kummer , Lena Jurkschat , Michael Färber , Sahar Vahdati

Large-scale AI models, such as Large Language Models (LLMs) and Diffusion Models (DMs), have grown rapidly in size, creating significant challenges for efficient deployment on resource-constrained hardware. In this paper, we introduce…

Machine Learning · Computer Science 2026-01-05 Tianyi Zhang , Mohsen Hariri , Shaochen Zhong , Vipin Chaudhary , Yang Sui , Xia Hu , Anshumali Shrivastava

The revolutionary capabilities of Large Language Models (LLMs) are attracting rapidly growing popularity and leading to soaring user requests to inference serving systems. Caching techniques, which leverage data reuse to reduce computation,…

Computation and Language · Computer Science 2025-07-15 Longwei Zou , Yan Liu , Jiamu Kang , Tingfeng Liu , Jiangang Kong , Yangdong Deng

Modern deployments of Large Language Models (LLMs) increasingly require serving multiple models with diverse architectures, sizes, and specialization on shared, heterogeneous hardware. This setting introduces new challenges for resource…

Artificial Intelligence · Computer Science 2026-05-20 Mert Yildiz , Pietro Spadaccino , Alexey Rolich , Francesca Cuomo , Andrea Baiocchi

Finetuning large language models (LLMs) is essential for task adaptation, yet today's serving stacks isolate inference and finetuning on separate GPU clusters -- wasting resources and under-utilizing hardware. We introduce FlexLLM, the…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-10-27 Gabriele Oliaro , Xupeng Miao , Xinhao Cheng , Vineeth Kada , Mengdi Wu , Ruohan Gao , Yingyi Huang , Remi Delacourt , April Yang , Yingcheng Wang , Colin Unger , Zhihao Jia

Multimodal Large Language Models (MLLMs) are distinguished by their multimodal comprehensive ability and widely used in many real-world applications including GPT-4o, autonomous driving and robotics. Despite their impressive performance,…

Machine Learning · Computer Science 2024-09-17 Zhenyu Ning , Jieru Zhao , Qihao Jin , Wenchao Ding , Minyi Guo

Large Language Models (LLMs) exhibit pronounced memory-bound characteristics during inference due to High Bandwidth Memory (HBM) bandwidth constraints. In this paper, we propose an L2 Cache-oriented asynchronous KV Cache prefetching method…

Machine Learning · Computer Science 2025-11-11 Yanhao Dong , Yubo Miao , Weinan Li , Xiao Zheng , Chao Wang , Jiesheng Wu , Feng Lyu

Large Language Models (LLMs) have transformed software development by enabling code generation, automated debugging, and complex reasoning. However, their continued advancement is constrained by the scarcity of high-quality, publicly…

Software Engineering · Computer Science 2025-08-11 Wasi Uddin Ahmad , Aleksander Ficek , Mehrzad Samadi , Jocelyn Huang , Vahid Noroozi , Somshubra Majumdar , Boris Ginsburg

As the foundational component of versatile AI applications, training an multimodal large language model (MLLM) relies on multimodal datasets with dynamic modality mixture proportions and sample length distributions. However, existing MLLM…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-05-12 Chunyu Xue , Yangrui Chen , Jianyu Jiang , Ningxin Zheng , Junda Feng , Jingji Chen , Shixiong Zhao , Shen Yan , Yi Lin , Lei Shi , Zanbo Wang , Lishu Luo , Faming Wu , Haibin Lin , Xin Liu , Yanghua Peng , Quan Chen

The training scale of large language models (LLMs) has reached tens of thousands of GPUs and is still continuously expanding, enabling faster learning of larger models. Accompanying the expansion of the resource scale is the prevalence of…

Due to limited supervised training data, large language models (LLMs) are typically pre-trained via a self-supervised "predict the next word" objective on a vast amount of unstructured text data. To make the resulting model useful to users,…

Computation and Language · Computer Science 2026-01-30 Ajay Patel , Colin Raffel , Chris Callison-Burch