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Orbital angular momentum (OAM) detection underpins almost all aspects of vortex beams' advances such as communication and quantum analogy. Conventional schemes are frustrated by low speed, complicated system, limited detection range. Here,…

新兴技术 · 计算机科学 2022-09-07 Hao Wang , Ziyu Zhan , Futai Hu , Yuan Meng , Zeqi Liu , Xing Fu , Qiang Liu

Motivated by the puzzling observation that inserting long sequences of meaningless tokens before the query prompt can consistently enhance LLM reasoning performance, this work analyzes the underlying mechanism driving this phenomenon and…

机器学习 · 计算机科学 2025-10-02 Zeru Shi , Yingjia Wan , Zhenting Wang , Qifan Wang , Fan Yang , Elisa Kreiss , Ruixiang Tang

In this paper, we explore the limits of graphics processors (GPUs) for general purpose parallel computing by studying problems that require highly irregular data access patterns: parallel graph algorithms for list ranking and connected…

分布式、并行与集群计算 · 计算机科学 2010-02-25 Frank Dehne , Kumanan Yogaratnam

Thread-level parallelism in irregular applications with mutable data dependencies presents challenges because the underlying data is extensively modified during execution of the algorithm and a high degree of parallelism must be realized…

分布式、并行与集群计算 · 计算机科学 2015-05-19 Georgios Rokos , Gerard J. Gorman , Kristian Ejlebjerg Jensen , Paul H. J. Kelly

Non-adiabatic molecular dynamics (NAMD) simulations have become an indispensable tool for investigating excited-state dynamics in solids. In this work, we propose a general framework, N$^2$AMD which employs an E(3)-equivariant deep neural…

Graph Continual Learning (GCL) aims to solve the challenges of streaming graph data. However, current methods often depend on replay-based strategies, which raise concerns like memory limits and privacy issues, while also struggling to…

机器学习 · 计算机科学 2026-02-10 Jingtao Liu , Xinming Zhang

This paper presents implementation details and empirical results for a hybrid message passing and shared memory paralleliziation of the adaptive integral method (AIM). AIM is implemented on a (near) petaflop supercomputing cluster of…

计算工程、金融与科学 · 计算机科学 2010-10-08 Fangzhou Wei , Ali E. Yılmaz

Model merging, a method that combines the parameters and embeddings of multiple fine-tuned large language models (LLMs), offers a promising approach to enhance model performance across various tasks while maintaining computational…

计算与语言 · 计算机科学 2025-11-10 Amin Heyrani Nobari , Kaveh Alim , Ali ArjomandBigdeli , Akash Srivastava , Faez Ahmed , Navid Azizan

Large language models (LLMs) have been widely applied but face challenges in efficient inference. While quantization methods reduce computational demands, ultra-low bit quantization with arbitrary precision is hindered by limited GPU Tensor…

机器学习 · 计算机科学 2025-03-14 Shaobo Ma , Chao Fang , Haikuo Shao , Zhongfeng Wang

In this paper, we demonstrate how GPU-accelerated BEM routines can be used in a simple black-box fashion to accelerate fast boundary element formulations based on Hierarchical Matrices (H-Matrices) with ACA (Adaptive Cross Approximation).…

分布式、并行与集群计算 · 计算机科学 2017-11-07 Kerstin Vater , Timo Betcke , Boris Dilba

Cryptographic algorithms such as AES-128 and SHA-256 are fundamental to ensuring data security and integrity. Although these algorithms are computationally efficient, their performance is often constrained by the processor-centric…

密码学与安全 · 计算机科学 2026-05-20 Nicola Barcarolo , Brahmaiah Gandham , Mohammad Sadrosadati , Roberto Passerone , Onur Mutlu , Flavio Vella

Large Language Models (LLMs) are scaling rapidly, creating significant challenges for collaborative server client distributed training, particularly in terms of communication efficiency and computational overheads. To address these…

机器学习 · 计算机科学 2025-10-08 Yurun Song , Zhuoyi Yang , Ian G. Harris , Sangeetha Abdu Jyothi

The new non-volatile memory technology relies on data recoverability to achieve the promise of byte-addressable persistence in computer applications. The durable transaction (e.g. logging) is one of the major persistency programming models…

硬件体系结构 · 计算机科学 2023-01-12 Xinjian Long

Recent trends in business and technology (e.g., machine learning, social network analysis) benefit from storing and processing growing amounts of graph-structured data in databases and data science platforms. FPGAs as accelerators for graph…

数据库 · 计算机科学 2021-02-09 Jonas Dann , Daniel Ritter , Holger Fröning

Non-volatile main memory (NVRAM) technologies provide an attractive set of features for large-scale graph analytics, including byte-addressability, low idle power, and improved memory-density. NVRAM systems today have an order of magnitude…

分布式、并行与集群计算 · 计算机科学 2020-06-01 Laxman Dhulipala , Charlie McGuffey , Hongbo Kang , Yan Gu , Guy E. Blelloch , Phillip B. Gibbons , Julian Shun

Processing-in-Memory (PIM) enhances memory with computational capabilities, potentially solving energy and latency issues associated with data transfer between memory and processors. However, managing concurrent computation and data flow…

硬件体系结构 · 计算机科学 2025-05-09 Ahmed Mamdouh , Haoran Geng , Michael Niemier , Xiaobo Sharon Hu , Dayane Reis

All-pairs shortest paths (APSP) remains a major bottleneck for large-scale graph analytics, as data movement with cubic complexity overwhelms the bandwidth of conventional memory hierarchies. In this work, we propose RAPID-Graph to address…

硬件体系结构 · 计算机科学 2026-01-29 Yanru Chen , Zheyu Li , Keming Fan , Runyang Tian , John Hsu , Weihong Xu , Minxuan Zhou , Tajana Rosing

In this paper, we develop an in-memory analog computing (IMAC) architecture realizing both synaptic behavior and activation functions within non-volatile memory arrays. Spin-orbit torque magnetoresistive random-access memory (SOT-MRAM)…

硬件体系结构 · 计算机科学 2021-09-15 Mohammed Elbtity , Abhishek Singh , Brendan Reidy , Xiaochen Guo , Ramtin Zand

In current microarchitectures, due to the complex memory hierarchies and different latencies on memory accesses, thread and data mapping are important issues to improve application performance. Software transactional memory (STM) is an…

分布式、并行与集群计算 · 计算机科学 2025-03-24 Douglas Pereira Pasqualin , Matthias Diener , André Rauber Du Bois , Maurício Lima Pilla

Trusted processors provide a way to perform joint computations while preserving data privacy. To overcome the performance degradation caused by data-oblivious algorithms to prevent information leakage, we explore the benefits of oblivious…

密码学与安全 · 计算机科学 2026-01-01 Jiping Yu , Xiaowei Zhu , Kun Chen , Guanyu Feng , Yunyi Chen , Xiaoyu Fan , Wenguang Chen