WOMBAT: A Scalable and High-performance Astrophysical Magnetohydrodynamics Code

被引：21

作者：

Mendygral, P. J. ^{[1
,2
]}

Radcliffe, N. ^{[1
]}

Kandalla, K. ^{[1
]}

Porter, D. ^{[3
]}

O'Neill, B. J. ^{[2
,3
]}

Nolting, C. ^{[2
,3
]}

Edmon, P. ^{[4
]}

Donnert, J. M. F. ^{[2
,5
]}

Jones, T. W. ^{[2
,3
]}

机构：

[1] Cray Inc, St Paul, MN 55101 USA

[2] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA

[3] Minnesota Supercomputing Inst Adv Computat Res, Minneapolis, MN USA

[4] Harvard Univ, Ctr Astrophys, Inst Theory & Computat, Cambridge, MA 02138 USA

[5] INAF, Ist Radioastron, Via P Gobetti 101, I-40129 Bologna, Italy

来源：

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES | 2017年 / 228卷 / 02期

基金：

美国国家科学基金会;

关键词：

magnetohydrodynamics (MHD); methods: numerical; ADAPTIVE MESH REFINEMENT; UNSPLIT GODUNOV METHOD; CONSTRAINED-TRANSPORT; IDEAL MHD; HYDRODYNAMICS; SCHEME; PLUTO; FLASH;

D O I：

10.3847/1538-4365/aa5b9c

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a new code for astrophysical magnetohydrodynamics specifically designed and optimized for high performance and scaling on modern and future supercomputers. We describe a novel hybrid OpenMP/MPI programming model that emerged from a collaboration between Cray, Inc. and the University of Minnesota. This design utilizes MPI-RMA optimized for thread scaling, which allows the code to run extremely efficiently at very high thread counts ideal for the latest generation of multi-core and many-core architectures. Such performance characteristics are needed in the era of "exascale" computing. We describe and demonstrate our high-performance design in detail with the intent that it may be used as a model for other, future astrophysical codes intended for applications demanding exceptional performance.

引用

页数：23

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