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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 increasing size of large language models (LLMs) has led to a surge in memory requirements during training, often exceeding the capacity of high-bandwidth memory (HBM). Swap-based memory optimization incurs neither accuracy loss nor…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-09-16 Zibo Wang , Yuhang Zhou , Zhibin Wang , Shipeng Li , Xinjing Huang , Chendong Cai , Bingxu Mu , Yuqing Sun , Zhiheng Hu , Bin She , Shu You , Guanghuan Fang , Rong Gu , Wanchun Dou , Guihai Chen , Chen Tian

Efficient parallelization of Large Language Models (LLMs) with long sequences is essential but challenging due to their significant computational and memory demands, particularly stemming from communication bottlenecks in attention…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-12-31 Zongwu Wang , Fangxin Liu , Mingshuai Li , Li Jiang

Recent research explores optimization using large language models (LLMs) by either iteratively seeking next-step solutions from LLMs or directly prompting LLMs for an optimizer. However, these approaches exhibit inherent limitations,…

Optimization and Control · Mathematics 2024-03-06 Zeyuan Ma , Hongshu Guo , Jiacheng Chen , Guojun Peng , Zhiguang Cao , Yining Ma , Yue-Jiao Gong

Large language models (LLMs) show best-in-class performance across a wide range of natural language processing applications. Training these models is an extremely computationally expensive task; frontier Artificial Intelligence (AI)…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-10-10 Alexander Interrante-Grant , Carla Varela-Rosa , Suhaas Narayan , Chris Connelly , Albert Reuther

Fine-tuning pre-trained large language models (LLMs) in a distributed manner poses significant challenges on resource-constrained edge networks. To address this challenge, we propose SflLLM, a novel framework that integrates split federated…

Machine Learning · Computer Science 2025-07-03 Kai Zhao , Zhaohui Yang , Ye Hu , Mingzhe Chen , Chen Zhu , Zhaoyang Zhang

Built upon the decision tree (DT) classification and regression idea, the subspace learning machine (SLM) has been recently proposed to offer higher performance in general classification and regression tasks. Its performance improvement is…

Machine Learning · Computer Science 2022-08-16 Hongyu Fu , Yijing Yang , Yuhuai Liu , Joseph Lin , Ethan Harrison , Vinod K. Mishra , C. -C. Jay Kuo

We propose XPipe, an efficient asynchronous pipeline model parallelism approach for multi-GPU DNN training. XPipe is designed to use multiple GPUs to concurrently and continuously train different parts of a DNN model. To improve GPU…

Machine Learning · Computer Science 2020-11-10 Lei Guan , Wotao Yin , Dongsheng Li , Xicheng Lu

Reinforcement learning (RL) has become a central component of post-training for large language models (LLMs), particularly for complex reasoning tasks that require stable optimization over long generation horizons. However, achieving…

Machine Learning · Computer Science 2026-02-17 Yuepeng Sheng , Yuwei Huang , Shuman Liu , Anxiang Zeng , Haibo Zhang

Offline LLM inference seeks to maximize request processing under fixed budgets, making commodity GPU servers a promising choice. However, prior work typically considers offloading and parallelism in isolation, resulting in suboptimal…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-05-05 Hongbin Zhang , Taosheng Wei , Jiazhi Jiang , Hui Yan , Jiangsu Du , Zhiguang Chen

Large Language Models (LLMs) are capable of reasoning over diverse input data modalities through pre-trained encoders. However, the growing diversity of input data modalities prevents incorporating all modalities into LLMs, especially when…

Artificial Intelligence · Computer Science 2023-12-14 Kai Huang , Boyuan Yang , Wei Gao

The rapid scaling of large language models (LLMs) has significantly increased GPU memory pressure, which is further aggravated by training optimization techniques such as virtual pipeline and recomputation that disrupt tensor lifespans and…

Machine Learning · Computer Science 2025-11-26 Zixiao Huang , Junhao Hu , Hao Lin , Chunyang Zhu , Yueran Tang , Quanlu Zhang , Zhen Guo , Zhenhua Li , Shengen Yan , Zhenhua Zhu , Guohao Dai , Yu Wang

Reinforcement learning is time-consuming for complex tasks due to the need for large amounts of training data. Recent advances in GPU-based simulation, such as Isaac Gym, have sped up data collection thousands of times on a commodity GPU.…

Machine Learning · Computer Science 2023-07-25 Zechu Li , Tao Chen , Zhang-Wei Hong , Anurag Ajay , Pulkit Agrawal

This paper introduces Completion Pruning Policy Optimization (CPPO) to accelerate the training of reasoning models based on Group Relative Policy Optimization (GRPO). GRPO, while effective, incurs high training costs due to the need to…

Artificial Intelligence · Computer Science 2025-11-11 Zhihang Lin , Mingbao Lin , Yuan Xie , Rongrong Ji

Deep reinforcement learning (RL) is increasingly deployed in resource-constrained environments, yet the go-to function approximators - multilayer perceptrons (MLPs) - are often parameter-inefficient due to an imperfect inductive bias for…

Machine Learning · Computer Science 2026-02-02 Rajib Mostakim , Reza T. Batley , Sourav Saha

Recent advancements in large language models (LLMs) with billions of parameters have improved performance in various applications, but their inference processes demand significant energy and computational resources. In contrast, the human…

Machine Learning · Computer Science 2025-04-11 Xingrun Xing , Boyan Gao , Zheng Zhang , David A. Clifton , Shitao Xiao , Li Du , Guoqi Li , Jiajun Zhang

Large language models (LLMs) exhibit remarkable capabilities in handling natural language tasks; however, they may struggle to consistently follow complex instructions including those involve multiple constraints. Post-training LLMs using…

Computation and Language · Computer Science 2025-05-20 Yuheng Lu , ZiMeng Bai , Caixia Yuan , Huixing Jiang , Xiaojie Wang

Transformer-based large language models (LLMs) have achieved remarkable success, yet their standard attention mechanism incurs quadratic computation and memory costs with respect to sequence length, posing a major bottleneck for…

Machine Learning · Computer Science 2025-10-22 Tao Bu , Qiangang Wang , Bowen Zeng , Hanwen Sun , Yunpeng Huang , Chun Cao , Jingwei Xu

Efficient parallelism is necessary for achieving low-latency, high-throughput inference with large language models (LLMs). Tensor parallelism (TP) is the state-of-the-art method for reducing LLM response latency, however GPU communications…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-01-27 Mert Hidayetoglu , Aurick Qiao , Michael Wyatt , Jeff Rasley , Yuxiong He , Samyam Rajbhandari

In recent years, the size of pre-trained language models (PLMs) has grown by leaps and bounds. However, efficiency issues of these large-scale PLMs limit their utilization in real-world scenarios. We present a suite of cost-effective…