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Related papers: Prefill-Decode Aggregation or Disaggregation? Unif…

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Disaggregation has emerged as a powerful strategy for optimizing large language model (LLM) inference by separating compute-intensive prefill and memory-bound decode phases across specialized GPUs. This separation improves utilization and…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-01-21 Yiwei Jiang , Sangeeta Chowdhary , Nathaniel Morris , Rutwik Jain , Srilatha Manne , Sam Bayliss

We introduce a low-resource safety enhancement method for aligning large language models (LLMs) without the need for supervised fine-tuning (SFT) or reinforcement learning from human feedback (RLHF). Our main idea is to exploit knowledge…

Computation and Language · Computer Science 2024-06-07 Haozheng Luo , Jiahao Yu , Wenxin Zhang , Jialong Li , Jerry Yao-Chieh Hu , Xinyu Xing , Han Liu

Modern LLM serving systems confront inefficient GPU utilization due to the fundamental mismatch between compute-intensive prefill and memory-bound decode phases. While current practices attempt to address this by organizing these phases…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-09-29 Zejia Lin , Hongxin Xu , Guanyi Chen , Zhiguang Chen , Yutong Lu , Xianwei Zhang

Disaggregating the prefill and decoding phases represents an effective new paradigm for generative inference of large language models (LLM), which eliminates prefill-decoding interference and optimizes resource allocation. However, it is…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-02-13 Youhe Jiang , Ran Yan , Binhang Yuan

Disaggregated LLM serving improves resource efficiency by separating the compute-intensive prefill phase from the latency-critical decode phase. However, this architecture introduces a fundamental bottleneck: key/value (KV) tensors…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-12-23 Dongha Yoon , Younghoon Min , Hoshik Kim , Sam H. Noh , Jongryool Kim

Data Parallelism (DP), Tensor Parallelism (TP), and Pipeline Parallelism (PP) are the three strategies widely adopted to enable fast and efficient Large Language Model (LLM) training. However, these approaches rely on data-intensive…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-09-05 Lang Xu , Quentin Anthony , Qinghua Zhou , Nawras Alnaasan , Radha R. Gulhane , Aamir Shafi , Hari Subramoni , Dhabaleswar K. Panda

The integration of AI-assisted coding tools within development environments drastically reduces development time, and allows developers to focus more on creative and critical aspects of software engineering through the use of Code Large…

Software Engineering · Computer Science 2025-03-26 Kishanthan Thangarajah , Arthur Leung , Boyuan Chen , Ahmed E. Hassan

Large language models (LLMs) with different architectures and sizes have been developed. Serving each LLM with dedicated GPUs leads to resource waste and service inefficiency due to the varying demand of LLM requests. A common practice is…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-04-23 Yihao Zhao , Jiadun Chen , Peng Sun , Lei Li , Xuanzhe Liu , Xin Jin

Large Language Model (LLM) serving must meet stringent Service Level Objectives (SLOs) for both the prefill and decode phases. Some existing solutions disaggregate the two phases, causing potential resource idleness or compute redundancy.…

Operating Systems · Computer Science 2026-02-10 Yukang Chen , Weihao Cui , Han Zhao , Ziyi Xu , Xiaoze Fan , Xusheng Chen , Yangjie Zhou , Shixuan Sun , Bingsheng He , Quan Chen

Large language models (LLMs) have achieved remarkable success in natural language tasks, but their inference incurs substantial computational and memory overhead. To improve efficiency, parallel decoding methods like Skeleton-of-Thought…

Computation and Language · Computer Science 2025-04-15 Shuowei Jin , Xueshen Liu , Yongji Wu , Haizhong Zheng , Qingzhao Zhang , Atul Prakash , Matthew Lentz , Danyang Zhuo , Feng Qian , Z. Morley Mao

As Large Language Models (LLMs) broaden their capabilities to manage thousands of API calls, they are confronted with complex data operations across vast datasets with significant overhead to the underlying system. In this work, we…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-09-24 Simranjit Singh , Michael Fore , Andreas Karatzas , Chaehong Lee , Yanan Jian , Longfei Shangguan , Fuxun Yu , Iraklis Anagnostopoulos , Dimitrios Stamoulis

The rapid expansion of web content has made on-device AI assistants indispensable for helping users manage the increasing complexity of online tasks. The emergent reasoning ability in large language models offer a promising path for…

Computation and Language · Computer Science 2025-02-10 Chenyang Shao , Xinyuan Hu , Yutang Lin , Fengli Xu

Diffusion large language models (dLLMs) offer a promising paradigm for parallel text generation, but in practice they face an accuracy-parallelism trade-off, where increasing tokens per forward (TPF) often degrades generation quality.…

Computation and Language · Computer Science 2026-05-12 Haoyang Zhou , Li Kong , Shijie Ren , Xiting Wang , Shuang Liang , Guowei Wang , Zhenxuan Pan

Aggressively quantized large language models (LLMs), such as BitNet-style 1.58-bit Transformers with ternary weights, make it feasible to deploy generative AI on low-power edge FPGAs. However, as prompts grow to tens of thousands of tokens,…

Hardware Architecture · Computer Science 2025-12-15 Yifan Zhang , Zhiheng Chen , Ye Qiao , Sitao Huang

In spite of the great potential of large language models (LLMs) across various tasks, their deployment on resource-constrained devices remains challenging due to their excessive computational and memory demands. Quantization has emerged as…

Machine Learning · Computer Science 2025-02-28 Hao Mark Chen , Fuwen Tan , Alexandros Kouris , Royson Lee , Hongxiang Fan , Stylianos I. Venieris

Decentralized federated learning (DFL) is an emerging paradigm to enable edge devices collaboratively training a learning model using a device-to-device (D2D) communication manner without the coordination of a parameter server (PS).…

Signal Processing · Electrical Eng. & Systems 2025-11-06 Zhiyuan Zhai , Xiaojun Yuan , Xin Wang , Geoffrey Ye Li

Scaling data and model size has been proven effective for boosting the performance of large language models. In addition to training-time scaling, recent studies have revealed that increasing test-time computational resources can further…

Computation and Language · Computer Science 2025-01-22 Yafu Li , Zhilin Wang , Tingchen Fu , Ganqu Cui , Sen Yang , Yu Cheng

Large Language Model (LLM) inference in production must meet stringent service-level objectives for both time-to-first-token (TTFT) and time-between-token (TBT) while maximizing throughput under fixed compute, memory, and interconnect…

Machine Learning · Computer Science 2026-04-17 Gunjun Lee , Jiwon Kim , Jaiyoung Park , Younjoo Lee , Jung Ho Ahn

Transformer architectures, particularly Diffusion Transformers (DiTs), have become widely used in diffusion and flow-matching models due to their strong performance compared to convolutional UNets. However, the isotropic design of DiTs…

Computer Vision and Pattern Recognition · Computer Science 2026-04-07 Quan Dao , Dimitris Metaxas

Large Language Model (LLM) inference consists of two distinct phases - prefill phase which processes the input prompt and decode phase which generates output tokens autoregressively. While the prefill phase effectively saturates GPU compute…

Machine Learning · Computer Science 2023-09-01 Amey Agrawal , Ashish Panwar , Jayashree Mohan , Nipun Kwatra , Bhargav S. Gulavani , Ramachandran Ramjee