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The performance potential for simulating quantum electron transport on graphical processing units (GPUs) is studied. Using graphene ribbons of realistic sizes as an example it is shown that GPUs provide significant speed-ups in comparison…

计算物理 · 物理学 2012-06-22 S. Ihnatsenka

We experimentally demonstrate the first carrier- and LO-free 800G/{\lambda} receiver enabling direct compatibility with standard coherent transmitters via phase retrieval, achieving net 835-Gb/s transmission over 100-km SMF and record…

Graphics Processing Units (GPUs) support dynamic voltage and frequency scaling (DVFS) in order to balance computational performance and energy consumption. However, there still lacks simple and accurate performance estimation of a given GPU…

性能 · 计算机科学 2018-06-14 Qiang Wang , Xiaowen Chu

In this paper we describe and demonstrate a C++ code written to determine the trajectory of particles traversing oriented single crystals and a CUDA code written to evaluate the radiation spectra from charged particles with arbitrary…

计算物理 · 物理学 2019-10-24 Christian Flohr Nielsen

Graphics Processing Units (GPUs) are now powerful and flexible systems adapted and used for other purposes than graphics calculations (General Purpose computation on GPU -- GPGPU). We present here a prototype to be integrated into…

分布式、并行与集群计算 · 计算机科学 2007-06-13 Sylvain Collange , Marc Daumas , David Defour

This paper presents a computationally efficient implementation of a Hamming code decoder on a graphics processing unit (GPU) to support real-time software-defined radio (SDR), which is a software alternative for realizing wireless…

分布式、并行与集群计算 · 计算机科学 2014-12-23 Shohidul Islam , Cheol-Hong Kim , Jong-Myon Kim

We present an implementation of a channelizer (F-engine) running on a Graphics Processing Unit (GPU). While not the first GPU implementation of a channelizer, we have put significant effort into optimizing the implementation. We are able to…

天体物理仪器与方法 · 物理学 2023-07-14 Bruce Merry

Non-orthogonal multiple access (NOMA) is an interesting technology that enables massive connectivity as required in future 5G and 6G networks. While purely linear processing already achieves good performance in NOMA systems, in certain…

信号处理 · 电气工程与系统科学 2022-06-14 Daniel Schäufele , Guillermo Marcus , Nikolaus Binder , Matthias Mehlhose , Alexander Keller , Sławomir Stańczak

In the context of the genome-wide association studies (GWAS), one has to solve long sequences of generalized least-squares problems; such a task has two limiting factors: execution time --often in the range of days or weeks-- and data…

分布式、并行与集群计算 · 计算机科学 2013-05-02 Lucas Beyer , Paolo Bientinesi

In this article, the performance of a fixed grid network is examined for various modulation formats to estimate the system's capacity and spectral efficiency. The optical In-phase Quadrature Modulator structure is used to build a fixed grid…

网络与互联网体系结构 · 计算机科学 2023-10-20 Adarsha M , S. Malathi , Santosh Kumar

We demonstrate the generation, 40 km fiber transmission, and homodyne detection of single-mode squeezed states of light at 1550 nm using real-time phase control of a locally generated local oscillator, often called a "real local oscillator"…

The CHIME Pathfinder is a new interferometric radio telescope that uses a hybrid FPGA/GPU FX correlator. The GPU-based X-engine of this correlator processes over 819 Gb/s of 4+4-bit complex astronomical data from N=256 inputs across a 400…

天体物理仪器与方法 · 物理学 2015-06-16 Andre Recnik , Kevin Bandura , Nolan Denman , Adam D. Hincks , Gary Hinshaw , Peter Klages , Ue-Li Pen , Keith Vanderlinde

We propose two transceiver schemes based on Kramers Kronig (KK) detection. One targets low-cost high-throughput applications and uses PAM transmission in combination with direct detection and digital reconstruction of the optical phase.…

信号处理 · 电气工程与系统科学 2018-03-14 Cristian Antonelli , Antonio Mecozzi , Mark Shtaif

High-throughput physics experiments require efficient and increasingly complex real-time processing. This paper presents a modular, software-defined platform combining high-bandwidth PCIe digitizers with consumer GPUs to achieve continuous,…

仪器与探测器 · 物理学 2026-05-12 Toma-Stefan Cezar , Marios Maroudas , Dieter Horns

As data rates for multi-gigabit serial interfaces within multi-node compute systems approach and exceed 10 Gigabits per second (Gbps), board-to-board and chip-to-chip optical signaling solutions become more attractive, particularly for…

信号处理 · 电气工程与系统科学 2023-01-25 James Kruchowski , Vladimir Sokolov , Nathan E. Harff , Mark A. Nelson , KY Liou , Graham Cameron , Barry K. Gilbert , Erik S. Daniel

The MWA is a next-generation radio interferometer under construction in remote Western Australia. The data rate from the correlator makes storing the raw data infeasible, so the data must be processed in real-time. The processing task is of…

天体物理仪器与方法 · 物理学 2009-02-06 S. Ord , L. Greenhill , R. Wayth , D. Mitchell , K. Dale , H. Pfister , R. G. Edgar

With the rapid advances in mobile technology many mobile devices are capable of capturing high quality images and video with their embedded camera. This paper investigates techniques for real-time processing of the resulting images,…

图形学 · 计算机科学 2011-12-15 Andrew Ensor , Seth Hall

This paper presents a high speed implementation of an optical flow algorithm which computes planar velocity fields in an experimental flow. Real-time computation of the flow velocity field allows the experimentalist to have instantaneous…

流体动力学 · 物理学 2013-09-26 N. Gautier , J-L. Aider

We present the design and the test results of a quad-channel optical transceiver module (QTRx) possibly for future particle physics experiments. The transmitters of QTRx, each at 10 Gbps, are based on a Quad-channel VCSEL Diode array Driver…

仪器与探测器 · 物理学 2022-05-25 B. Deng , X. Huang , H. Sun , C. -P. Chao , S. -W. Chen , D. Gong , S. Hou , G. Huang , C. -Y. Li , C. Liu , T. Liu , Q. Sun , J. Ye , L. Zhang , W. Zhang

Optical interconnects are becoming a major bottleneck in scaling up future GPU racks and network switches within data centers. Although 200 Gb/s optical transceivers using PAM-4 modulation have been demonstrated, achieving higher data rates…

信号处理 · 电气工程与系统科学 2025-05-27 Marziyeh Rezaei , Dan Sturm , Pengyu Zeng , Sajjad Moazeni