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Related papers: GPU-Initiated Networking for NCCL

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Amid the rapid advancements in large machine learning (ML) models, universities worldwide are investing substantial funds and efforts into GPU clusters. However, managing a shared GPU cluster poses a pyramid of challenges, from hardware…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-05-15 Kaiqiang Xu , Decang Sun , Hao Wang , Zhenghang Ren , Xinchen Wan , Xudong Liao , Zilong Wang , Junxue Zhang , Kai Chen

Graphics Processing Units (GPUs) have traditionally relied on the host CPU to initiate access to the data storage. This approach is well-suited for GPU applications with known data access patterns that enable partitioning of their dataset…

Modern graphics processing units (GPUs) are inexpensive commodity hardware that offer Tflop/s theoretical computing capacity. GPUs are well suited to many compute-intensive tasks including digital signal processing. We describe the…

Instrumentation and Methods for Astrophysics · Physics 2015-05-13 Randall B. Wayth , Lincoln J. Greenhill , Frank H. Briggs

Convolutional neural networks (CNNs) have been widely employed in many applications such as image classification, video analysis and speech recognition. Being compute-intensive, CNN computations are mainly accelerated by GPUs with high…

Hardware Architecture · Computer Science 2016-11-09 Dong Wang , Jianjing An , Ke Xu

Modern GPU systems are constantly evolving to meet the needs of computing-intensive applications in scientific and machine learning domains. However, there is typically a gap between the hardware capacity and the achievable application…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-10-02 Gabin Schieffer , Ruimin Shi , Stefano Markidis , Andreas Herten , Jennifer Faj , Ivy Peng

With the rapid advancement of Artificial Intelligence, the Graphics Processing Unit (GPU) has become increasingly essential across a growing number of safety-critical application domains. Applying a GPU is indispensable for parallel…

Operating Systems · Computer Science 2026-02-25 Yuanhai Zhang , Songyang He , Ruizhe Gou , Mingyue Cui , Boyang Li , Shuai Zhao , Kai Huang

GPUs are readily available in cloud computing and personal devices, but their use for data processing acceleration has been slowed down by their limited integration with common programming languages such as Python or Java. Moreover, using…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-01-20 Alberto Parravicini , Arnaud Delamare , Marco Arnaboldi , Marco D. Santambrogio

Modern deep learning applications urge to push the model inference taking place at the edge devices for multiple reasons such as achieving shorter latency, relieving the burden of the network connecting to the cloud, and protecting user…

Distributed, Parallel, and Cluster Computing · Computer Science 2019-07-05 Leyuan Wang , Zhi Chen , Yizhi Liu , Yao Wang , Lianmin Zheng , Mu Li , Yida Wang

Mixture of Experts (MoE) LLMs, characterized by their sparse activation patterns, offer a promising approach to scaling language models while avoiding proportionally increasing the inference cost. However, their large parameter sizes…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-04-15 Yichao Yuan , Lin Ma , Nishil Talati

Modern GPUs support special protocols to exchange data directly across the PCI Express bus. While these protocols could be used to reduce GPU data transmission times, basically by avoiding staging to host memory, they require specific…

Large language models (LLMs) training or inference across multiple nodes introduces significant pressure on GPU memory and interconnect bandwidth. The Compute Express Link (CXL) shared memory pool offers a scalable solution by enabling…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-05-08 Dong Xu , Han Meng , Xinyu Chen , Dengcheng Zhu , Wei Tang , Fei Liu , Liguang Xie , Wu Xiang , Rui Shi , Yue Li , Henry Hu , Hui Zhang , Jianping Jiang , Dong Li

As large language models (LLMs) continue to scale, multi-node deployment has become a necessity. Consequently, communication has become a critical performance bottleneck. Current intra-node communication libraries, like NCCL, typically make…

Hardware Architecture · Computer Science 2025-10-21 Ao Shen , Rui Zhang , Junping Zhao

Modern computing platforms tend to deploy multiple GPUs (2, 4, or more) on a single node to boost system performance, with each GPU having a large capacity of global memory and streaming multiprocessors (SMs). GPUs are an expensive…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-07-20 Chao Chen , Chris Porter , Santosh Pande

The recent advancements of three-dimensional (3D) data acquisition devices have spurred a new breed of applications that rely on point cloud data processing. However, processing a large volume of point cloud data brings a significant…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-06-06 Jiawei Shao , Haowei Zhang , Yuyi Mao , Jun Zhang

Conventional wisdom holds that an efficient interface between an OS running on a CPU and a high-bandwidth I/O device should use Direct Memory Access (DMA) to offload data transfer, descriptor rings for buffering and queuing, and interrupts…

Hardware Architecture · Computer Science 2025-04-25 Anastasiia Ruzhanskaia , Pengcheng Xu , David Cock , Timothy Roscoe

The increasing scale of large language models (LLMs) necessitates highly efficient collective communication frameworks, particularly as training workloads extend to hundreds of thousands of GPUs. Traditional communication methods face…

In order to satisfy timing constraints, modern real-time applications require massively parallel accelerators such as General Purpose Graphic Processing Units (GPGPUs). Generation after generation, the number of computing clusters made…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-05-24 Houssam-Eddine Zahaf , Ignacio Sanudo Olmedo , Jayati Singh , Nicola Capodieci , Sebastien Faucou

Integration of CPU and GPU technologies is a key enabler for modern AI and graphics workloads, combining control-oriented processing with massive parallel compute capability. As systems evolve toward chiplet-based architectures, pre-silicon…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-03-18 Nij Dorairaj , Debabrata Chatterjee , Hong Wang , Hong Jiang , Alankar Saxena , Altug Koker , Thiam Ern Lim , Cathrane Teoh , Chuan Yin Loo , Bishara Shomar , Anthony Lester

Efficient deployment of large language models, particularly Mixture of Experts (MoE), on resource-constrained platforms presents significant challenges, especially in terms of computational efficiency and memory utilization. The MoE…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-11-20 Shiyi Cao , Shu Liu , Tyler Griggs , Peter Schafhalter , Xiaoxuan Liu , Ying Sheng , Joseph E. Gonzalez , Matei Zaharia , Ion Stoica

GPUs are vastly underutilized, even when running resource-intensive AI applications, as GPU kernels within each job have diverse resource profiles that may saturate some parts of a device while often leaving other parts idle. Colocating…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-02-17 Paul Elvinger , Foteini Strati , Natalie Enright Jerger , Ana Klimovic