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This paper presents the first parallel implementation of the novel "Interpolated Factored Green Function" (IFGF) method introduced recently for the accelerated evaluation of discrete integral operators arising in wave scattering and other…

数值分析 · 数学 2022-05-12 Christoph Bauinger , Oscar P. Bruno

Graph-related applications have experienced significant growth in academia and industry, driven by the powerful representation capabilities of graph. However, efficiently executing these applications faces various challenges, such as load…

硬件体系结构 · 计算机科学 2023-09-15 Zhengyang Lv , Mingyu Yan , Xin Liu , Mengyao Dong , Xiaochun Ye , Dongrui Fan , Ninghui Sun

In this paper we consider speedup potential of morphological image filtering on ARM processors. Morphological operations are widely used in image analysis and recognition and their speedup in some cases can significantly reduce overall…

分布式、并行与集群计算 · 计算机科学 2020-02-24 Elena Limonova , Arseny Terekhin , Dmitry Nikolaev , Vladimir Arlazarov

We present a promising approach to the extremely fast sensing and correction of small wavefront errors in adaptive optics systems. As our algorithm's computational complexity is roughly proportional to the number of actuators, it is…

天体物理仪器与方法 · 物理学 2016-11-26 Christoph U. Keller , Visa Korkiakoski , Niek Doelman , Rufus Fraanje , Raluca Andrei , Michel Verhaegen

Low-photon phase imaging is essential in applications where the signal is limited by short exposure times, faint targets, or the need to protect delicate samples. We address this challenge with Poisson Wavefront Imaging (PWI), an…

The separation of the data capture and analysis in modern vision systems has led to a massive amount of data transfer between the end devices and cloud computers, resulting in long latency, slow response, and high power consumption.…

图像与视频处理 · 电气工程与系统科学 2024-08-13 Ruibing Song , Kejie Huang , Zongsheng Wang , Haibin Shen

This paper presents an efficient parallel Adaptive Inverse Distance Weighting (AIDW) interpolation algorithm on modern Graphics Processing Unit (GPU). The presented algorithm is an improvement of our previous GPU-accelerated AIDW algorithm…

分布式、并行与集群计算 · 计算机科学 2016-09-09 Gang Mei , Nengxiong Xu , Liangliang Xu

Electrical power requirements will be a constraint on the future growth of Distributed High Throughput Computing (DHTC) as used by High Energy Physics. Performance-per-watt is a critical metric for the evaluation of computer architectures…

分布式、并行与集群计算 · 计算机科学 2014-10-14 David Abdurachmanov , Brian Bockelman , Peter Elmer , Giulio Eulisse , Robert Knight , Shahzad Muzaffar

In recent decades, High Performance Computing (HPC) has undergone significant enhancements, particularly in the realm of hardware platforms, aimed at delivering increased processing power while keeping power consumption within reasonable…

分布式、并行与集群计算 · 计算机科学 2023-10-03 S. -Kazem Shekofteh , Christian Alles , Nils Kochendörfer , Holger Fröning

Current and upcoming radio-interferometers are expected to produce volumes of data of increasing size that need to be processed in order to generate the corresponding sky brightness distributions through imaging. This represents an…

天体物理仪器与方法 · 物理学 2023-01-18 Claudio Gheller , Giuliano Taffoni , David Goz

With high computation power and memory bandwidth, graphics processing units (GPUs) lend themselves to accelerate data-intensive analytics, especially when such applications fit the single instruction multiple data (SIMD) model. However,…

分布式、并行与集群计算 · 计算机科学 2018-12-12 Hang Liu , H. Howie Huang

A radio interferometer indirectly measures the intensity distribution of the sky over the celestial sphere. Since measurements are made over an irregularly sampled Fourier plane, synthesising an intensity image from interferometric…

天体物理仪器与方法 · 物理学 2014-03-18 Daniel Muscat

In this paper, we address the inverse problem of fast, stable, and high-quality wavefront reconstruction from pyramid wavefront sensor data for Adaptive Optics systems on Extremely Large Telescopes. For solving the indicated problem we…

天体物理仪器与方法 · 物理学 2019-05-01 Victoria Hutterer , Ronny Ramlau , Iuliia Shatokhina

Load balancing is a widely accepted technique for performance optimization of scientific applications on parallel architectures. Indeed, balanced applications do not waste processor cycles on waiting at points of synchronization and data…

分布式、并行与集群计算 · 计算机科学 2015-07-07 Alexey Lastovetsky , Lukasz Szustak , Roman Wyrzykowski

Given an array $\mathcal{A}$ of $n$ elements and a value $2 \leq k \leq n$, a frequent item or $k$-majority element is an element occurring in $\mathcal{A}$ more than $n/k$ times. The $k$-majority problem requires finding all of the…

分布式、并行与集群计算 · 计算机科学 2017-01-12 Massimo Cafaro , Marco Pulimeno , Italo Epicoco , Giovanni Aloisio

Supervised learning of Convolutional Neural Networks (CNNs), also known as supervised Deep Learning, is a computationally demanding process. To find the most suitable parameters of a network for a given application, numerous training…

分布式、并行与集群计算 · 计算机科学 2015-07-01 Andre Viebke , Sabri Pllana

Convolution is the most time-consuming operation in deep neural network operations, so its performance is critical to the overall performance of the neural network. The commonly used methods for convolution on GPU include the general matrix…

神经与进化计算 · 计算机科学 2023-06-27 Shuai Lu , Jun Chu , Luanzheng Guo , Xu T. Liu

For years, SIMD/vector units have enhanced the capabilities of modern CPUs in High-Performance Computing (HPC) and mobile technology. Typical commercially-available SIMD units process up to 8 double-precision elements with one instruction.…

分布式、并行与集群计算 · 计算机科学 2023-11-14 Pablo Vizcaino , Georgios Ieronymakis , Nikolaos Dimou , Vassilis Papaefstathiou , Jesus Labarta , Filippo Mantovani

To meet the computational requirements of modern workloads under tight energy constraints, general-purpose accelerator architectures have to integrate an ever-increasing number of extremely area- and energy-efficient processing elements…

硬件体系结构 · 计算机科学 2025-11-11 Luca Colagrande , Luca Benini

FPGA accelerators on the NIC enable the offloading of expensive packet processing tasks from the CPU. However, FPGAs have limited resources that may need to be shared among diverse applications, and programming them is difficult. We present…