High throughput software for direct numerical simulations of compressible two-phase flows

2012 International Conference for High Performance Computing, Networking, Storage and Analysis Pub Date : 2012-11-10 DOI:10.1109/SC.2012.66

B. Hejazialhosseini, D. Rossinelli, Christian Conti, P. Koumoutsakos

{"title":"High throughput software for direct numerical simulations of compressible two-phase flows","authors":"B. Hejazialhosseini, D. Rossinelli, Christian Conti, P. Koumoutsakos","doi":"10.1109/SC.2012.66","DOIUrl":null,"url":null,"abstract":"We present an open source, object-oriented software for high throughput Direct Numerical Simulations of compressible, two-phase flows. The Navier-Stokes equations are discretized on uniform grids using high order finite volume methods. The software exploits recent CPU micro-architectures by explicit vectorization and adopts NUMA-aware techniques as well as data and computation reordering. We report a compressible flow solver with unprecedented fractions of peak performance: 45% of the peak for a single node (nominal performance of 840 GFLOP/s) and 30% for a cluster of 47'000 cores (nominal performance of 0.8 PFLOP/s). We suggest that the present work may serve as a performance upper bound, regarding achievable GFLOP/s, for two-phase flow solvers using adaptive mesh refinement. The software enables 3D simulations of shock-bubble interaction including, for the first time, effects of diffusion and surface tension, by efficiently employing two hundred billion computational elements.","PeriodicalId":217221,"journal":{"name":"2012 International Conference for High Performance Computing, Networking, Storage and Analysis","volume":"7 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2012-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"17","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2012 International Conference for High Performance Computing, Networking, Storage and Analysis","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/SC.2012.66","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 17

Abstract

We present an open source, object-oriented software for high throughput Direct Numerical Simulations of compressible, two-phase flows. The Navier-Stokes equations are discretized on uniform grids using high order finite volume methods. The software exploits recent CPU micro-architectures by explicit vectorization and adopts NUMA-aware techniques as well as data and computation reordering. We report a compressible flow solver with unprecedented fractions of peak performance: 45% of the peak for a single node (nominal performance of 840 GFLOP/s) and 30% for a cluster of 47'000 cores (nominal performance of 0.8 PFLOP/s). We suggest that the present work may serve as a performance upper bound, regarding achievable GFLOP/s, for two-phase flow solvers using adaptive mesh refinement. The software enables 3D simulations of shock-bubble interaction including, for the first time, effects of diffusion and surface tension, by efficiently employing two hundred billion computational elements.

查看原文本刊更多论文

用于直接数值模拟可压缩两相流的高通量软件

我们提出了一个开源的、面向对象的软件，用于高通量的可压缩两相流的直接数值模拟。采用高阶有限体积法在均匀网格上离散Navier-Stokes方程。该软件通过显式向量化利用了最新的CPU微架构，并采用numa感知技术以及数据和计算重排序。我们报告了一个具有前所未有的峰值性能的可压缩流求解器:单个节点的峰值为45%(标称性能为840 GFLOP/s)， 47000核集群的峰值为30%(标称性能为0.8 PFLOP/s)。我们建议，目前的工作可以作为一个性能上限，关于可实现的GFLOP/s，两相流求解器使用自适应网格细化。该软件首次实现了冲击波-气泡相互作用的三维模拟，包括扩散和表面张力的影响，通过高效地使用2000亿个计算元素。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

2012 International Conference for High Performance Computing, Networking, Storage and Analysis

自引率

0.00%

发文量