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The rapid adoption of AI and convenience offered by cloud services have resulted in the growing demands for GPUs in the cloud. Generally, GPUs are physically attached to host servers as PCIe devices. However, the fixed assembly combination…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-10-10 Bowen He , Xiao Zheng , Yuan Chen , Weinan Li , Yajin Zhou , Xin Long , Pengcheng Zhang , Xiaowei Lu , Linquan Jiang , Qiang Liu , Dennis Cai , Xiantao Zhang

Public cloud providers seek to meet stringent performance requirements and low hardware cost. A key driver of performance and cost is main memory. Memory pooling promises to improve DRAM utilization and thereby reduce costs. However,…

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

The growing prevalence of data-intensive workloads, such as artificial intelligence (AI), machine learning (ML), high-performance computing (HPC), in-memory databases, and real-time analytics, has exposed limitations in conventional memory…

Cognitive simulation (CogSim) is an important and emerging workflow for HPC scientific exploration and scientific machine learning (SciML). One challenging workload for CogSim is the replacement of one component in a complex physical…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-12-13 Michael R Wyatt , Valen Yamamoto , Zoe Tosi , Ian Karlin , Brian Van Essen

To accommodate the growing memory footprints of today's applications, CPU vendors have employed large DRAM caches, backed by large non-volatile memories like Intel Optane (e.g., Intel's Cascade Lake). The existing computer architecture…

Hardware Architecture · Computer Science 2023-03-24 Maryam Babaie , Ayaz Akram , Jason Lowe-Power

Clustering is an unsupervised learning technique in which data or objects are grouped into sets based on some similarity measure. Most of the clustering algorithms assume that the main memory is infinite and can accommodate the set of…

Data Structures and Algorithms · Computer Science 2015-05-25 Pankaj Kumar Yadav , Sriniwas Pandey , Sraban Kumar Mohanty

Memory disaggregation is being considered as a strong alternative to traditional architecture to deal with the memory under-utilization in data centers. Disaggregated memory can adapt to dynamically changing memory requirements for the data…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-04-11 Amit Puri , John Jose , Tamarapalli Venkatesh

While Compute Express Link (CXL) enables support for cache-coherent shared memory among multiple nodes, it also introduces new types of failures--processes can fail before data does, or data might fail before a process does. The lack of a…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-07-18 Yi Xu , Suyash Mahar , Ziheng Liu , Mingyao Shen , Steven Swanson

This paper proposes ScalePool, a novel cluster architecture designed to interconnect numerous accelerators using unified hardware interconnects rather than traditional long-distance networking. ScalePool integrates Accelerator-Centric Links…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-10-17 Hyein Woo , Miryeong Kwon , Jiseon Kim , Eunjee Na , Hanjin Choi , Seonghyeon Jang , Myoungsoo Jung

Large Language Models (LLMs) have revolutionized natural language processing tasks, but their deployment in datacenter environments faces significant challenges due to the massive memory requirements of key-value (KV) caches. During the…

Artificial Intelligence · Computer Science 2025-12-16 Dong Liu , Yanxuan Yu

Compute Express Link (CXL) is a rapidly emerging coherent interconnect standard that provides opportunities for memory pooling and sharing. Memory sharing is a well-established software feature that improves memory utilization by avoiding…

Emerging Technologies · Computer Science 2024-04-05 Sunita Jain , Nagaradhesh Yeleswarapu , Hasan Al Maruf , Rita Gupta

The ever-growing demands for memory with larger capacity and higher bandwidth have driven recent innovations on memory expansion and disaggregation technologies based on Compute eXpress Link (CXL). Especially, CXL-based memory expansion…

This work introduces a GPU storage expansion solution utilizing CXL, featuring a novel GPU system design with multiple CXL root ports for integrating diverse storage media (DRAMs and/or SSDs). We developed and siliconized a custom CXL…

High-Performance Computing (HPC) and Artificial Intelligence (AI) workloads typically demand substantial memory bandwidth and, to a degree, memory capacity. CXL memory expansion modules, also known as CXL "type-3" devices, enable…

Operating Systems · Computer Science 2024-12-18 Rohit Sehgal , Vishal Tanna , Vinicius Petrucci , Anil Godbole

CXL-based Computational Memory (CCM) enables near-memory processing within expanded remote memory, presenting opportunities to address data movement costs associated with disaggregated memory systems and to accelerate overall performance.…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-12-05 Suyeon Lee , Kangkyu Park , Kwangsik Shin , Ada Gavrilovska

SRAM-based compute-in-memory (CIM) offers high computational density and energy efficiency for deep neural network (DNN) accelerators, but its limited capacity causes on/off-chip data movement overhead for large DNN models. Existing CIM…

Hardware Architecture · Computer Science 2026-04-21 Chenhao Xue , Yukun Wang , An Guo , Yuhui Shi , Jinwei Zhou , Xiping Dong , Yihan Yin , Yuanpeng Zhang , Tianyu Jia , Wei Gao , Qiang Wu , Xin Si , Jun Yang , Guangyu Sun

Quantum simulators are essential tools for developing and testing quantum algorithms. However, the high-frequency traversal characteristic of quantum simulators represents an unprecedented demand in the history of IT, and existing…

Emerging Technologies · Computer Science 2025-08-22 Mingyang Yu , Haorui Yang , Donglin Wang , Desheng Kong , Ji Du , Yulong Fu , Wei Wang , Jing Xu

As deep learning models and input data are scaling at an unprecedented rate, it is inevitable to move towards distributed training platforms to fit the model and increase training throughput. State-of-the-art approaches and techniques, such…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-04-15 William Won , Taekyung Heo , Saeed Rashidi , Srinivas Sridharan , Sudarshan Srinivasan , Tushar Krishna

Engram conditional memory has emerged as a promising component for LLMs by decoupling static knowledge lookup from dynamic computation. Since Engram exhibits sparse access patterns and supports prefetching, its massive embedding tables are…

Hardware Architecture · Computer Science 2026-03-12 Ruiyang Ma , Teng Ma , Zhiyuan Su , Hantian Zha , Xinpeng Zhao , Xuchun Shang , Xingrui Yi , Zheng Liu , Zhu Cao , An Wu , Zhichong Dou , Ziqian Liu , Daikang Kuang , Guojie Luo