Large-scale ferrofluid simulations on graphics processing units

被引：13

作者：

Polyakov, A. Yu. ^{[1
,2
]}

Lyutyy, T. V. ^{[1
]}

Denisov, S. ^{[2
]}

Reva, V. V. ^{[1
]}

Haenggi, P. ^{[2
]}

机构：

[1] Sumy State Univ, Sumy, Ukraine

[2] Univ Augsburg, Inst Phys, D-86159 Augsburg, Germany

来源：

COMPUTER PHYSICS COMMUNICATIONS | 2013年 / 184卷 / 06期

关键词：

Ferrofluid; Molecular dynamics simulation; The Barnes-Hut algorithm; GPUs; CUDA; N-BODY SIMULATIONS; MAGNETIC FLUID; DYNAMICS; FIELD; LIQUIDS;

D O I：

10.1016/j.cpc.2013.01.016

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

We present an approach to molecular-dynamics simulations of ferrofluids on graphics processing units (GPUs). Our numerical scheme is based on a GPU-oriented modification of the Barnes-Hut (BH) algorithm designed to increase the parallelism of computations. For an ensemble consisting of a million ferromagnetic particles, the performance of the proposed algorithm on a Testa M2050 GPU demonstrated a computational-time speed-up of four orders of magnitude compared to the performance of the sequential All-Pairs (AP) algorithm on a single-core CPU, and two orders of magnitude compared to the performance of the optimized AP algorithm on the GPU. The accuracy of the scheme is corroborated by comparing the results of numerical simulations with theoretical predictions. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：1483 / 1489

页数：7

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