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Artificial Intelligence (AI) workloads drive a rapid expansion of high-performance computing (HPC) infrastructures and increase their power and energy demands towards a critical level. AI benchmarks representing state-of-the art workloads…

性能 · 计算机科学 2026-03-18 Martin Mayr , Sebastian Wind , Lukas Schröder , Georg Hager , Harald Köstler , Gerhard Wellein

With the advent of exascale computing, effective load balancing in massively parallel software applications is critically important for leveraging the full potential of high performance computing systems. Load balancing is the distribution…

量子物理 · 物理学 2025-01-30 Omer Rathore , Alastair Basden , Nicholas Chancellor , Halim Kusumaatmaja

Based on our recent paper [arXiv:2206.12176 (2022)], we propose a scalable heteronuclear architecture of parallel implementation of CNOT gates in arrays of alkali-metal neutral atoms for quantum information processing. We considered a…

量子物理 · 物理学 2023-10-02 Ahmed M. Farouk , I. I. Beterov , Peng Xu , I. I. Ryabtsev

The QED-C suite of Application-Oriented Benchmarks provides the ability to gauge performance characteristics of quantum computers as applied to real-world applications. Its benchmark programs sweep over a range of problem sizes and inputs,…

Multithreaded software is typically built with specialized concurrent objects like atomic integers, queues, and maps. These objects' methods are designed to behave according to certain consistency criteria like atomicity, despite being…

软件工程 · 计算机科学 2017-06-29 Michael Emmi , Constantin Enea

We present a new cellular data processing scheme, a hybrid of existing cellular automata (CA) and gate array architectures, which is optimized for realization at the quantum scale. For conventional computing, the CA-like external clocking…

凝聚态物理 · 物理学 2009-10-31 S. C. Benjamin , N. F. Johnson

In this paper, we present FASE (Faster Asynchronous Systems Evaluation), a tool for evaluating the worst-case efficiency of asynchronous systems. The tool is based on some well-established results in the setting of a timed process algebra…

计算机科学中的逻辑 · 计算机科学 2011-05-10 Federico Buti , Massimo Callisto De Donato , Flavio Corradini , Maria Rita Di Berardini , Walter Vogler

Atomic ensembles, comprising clouds of atoms addressed by laser fields, provide an attractive system for both the storage of quantum information, and the coherent conversion of quantum information between atomic and optical degrees of…

量子物理 · 物理学 2008-04-08 S. D. Barrett , P. P. Rohde , T. M. Stace

An increasingly large number of HPC systems rely on heterogeneous architectures combining traditional multi-core CPUs with power efficient accelerators. Designing efficient applications for these systems has been troublesome in the past as…

分布式、并行与集群计算 · 计算机科学 2017-03-02 E. Calore , A. Gabbana , J. Kraus , S. F. Schifano , R. Tripiccione

Many modern workloads, such as neural networks, databases, and graph processing, are fundamentally memory-bound. For such workloads, the data movement between main memory and CPU cores imposes a significant overhead in terms of both latency…

硬件体系结构 · 计算机科学 2022-05-06 Juan Gómez-Luna , Izzat El Hajj , Ivan Fernandez , Christina Giannoula , Geraldo F. Oliveira , Onur Mutlu

Multi-core architectures feature an intricate hierarchy of cache memories, with multiple levels and sizes. To adequately decompose an application according to the traits of a particular memory hierarchy is a cumbersome task that may be…

分布式、并行与集群计算 · 计算机科学 2015-11-20 Hervé Paulino , Nuno Delgado

Embedded applications are widely used in portable devices such as wireless phones, personal digital assistants, laptops, etc. High throughput and real time requirements are especially important in such data-intensive tasks. Therefore,…

硬件体系结构 · 计算机科学 2012-04-13 Mehdi Alipour , Mostafa E. Salehi

We study the problem of executing an application represented by a precedence task graph on a parallel machine composed of standard computing cores and accelerators. Contrary to most existing approaches, we distinguish the allocation and the…

分布式、并行与集群计算 · 计算机科学 2017-11-20 Marcos Amaris , Giorgio Lucarelli , Clément Mommessin , Denis Trystram

Atomic lock-free multi-word compare-and-swap (MCAS) is a powerful tool for designing concurrent algorithms. Yet, its widespread usage has been limited because lock-free implementations of MCAS make heavy use of expensive compare-and-swap…

分布式、并行与集群计算 · 计算机科学 2020-08-07 Rachid Guerraoui , Alex Kogan , Virendra J. Marathe , Igor Zablotchi

Defect-free atomic arrays have been demonstrated as a scalable and fully-controllable platform for quantum simulations and quantum computations. To push the qubit size limit of this platform further, we design an integrated measurement and…

原子物理 · 物理学 2023-05-16 Shuai Wang , Wenjun Zhang , Tao Zhang , Shuyao Mei , Yuqing Wang , Jiazhong Hu , Wenlan Chen

Large-scale artificial intelligence models are transforming industries and redefining human machine collaboration. However, continued scaling exposes critical limitations in hardware, including constraints on computation, bandwidth, and…

分布式、并行与集群计算 · 计算机科学 2026-01-21 Yuankai Fan , Qizhen Weng , Xuelong Li

Empirical studies are fundamental in assessing the effectiveness of implementations of branch-and-bound algorithms. The complexity of such implementations makes empirical study difficult for a wide variety of reasons. Various attempts have…

分布式、并行与集群计算 · 计算机科学 2021-04-21 Stephen J. Maher , Ted K. Ralphs , Yuji Shinano

Efficient implementations of parallel applications on heterogeneous hybrid architectures require a careful balance between computations and communications with accelerator devices. Even if most of the communication time can be overlapped by…

分布式、并行与集群计算 · 计算机科学 2014-09-22 Raphaël Bleuse , Thierry Gautier , João V. F. Lima , Grégory Mounié , Denis Trystram

Heterogeneous computing is the strategy of deploying multiple types of processing elements within a single workflow, and allowing each to perform the tasks to which is best suited. To fully harness the power of heterogeneity, we want to be…

分布式、并行与集群计算 · 计算机科学 2021-12-03 Nikolaos Mavrogeorgis

The current workloads and applications are highly diversified, facing critical challenges such as the Power Wall and the Memory Wall Problem. Different strategies over the multiple levels of Caches have evolved to mitigate these problems.…

硬件体系结构 · 计算机科学 2023-04-13 Murali Dadi , Shubhang Pandey , Aparna Behera , T G Venkatesh