EARLY EXPERIENCES WITH THE 360TF IBM BLUE GENE/L PLATFORM

被引：8

作者：

Bhanot, G. ^{[1
]}

Dennis, J. M. ^{[2
]}

Edwards, J. ^{[1
,2
]}

Grabowski, W. ^{[2
]}

Gupta, M. ^{[1
]}

Jordan, K. ^{[4
]}

Loft, R. D. ^{[2
]}

Sexton, J. ^{[1
]}

St-Cyr, A. ^{[2
]}

Thomas, S. J. ^{[2
]}

Tufo, H. M. ^{[2
,3
]}

Voran, T. ^{[3
]}

Walkup, R. ^{[1
]}

Vyszogrodski, A. A. ^{[1
]}

机构：

[1] IBM Corp, Thomas J Watson Res Ctr, Yorktown Hts, NY 10598 USA

[2] Natl Ctr Atmospher Res, Div Comp Sci, Boulder, CO 80305 USA

[3] Univ Colorado, Dept Comp Sci, Boulder, CO 80309 USA

[4] IBM Syst & Technol Deep Comp, Cambridge, MA 02142 USA

来源：

INTERNATIONAL JOURNAL OF COMPUTATIONAL METHODS | 2008年 / 5卷 / 02期

基金：

美国国家科学基金会;

关键词：

Parallel computing; scalable algorithms; high order methods; atmospheric modeling;

D O I：

10.1142/S0219876208001443

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The High Order Method Modeling Environment is a scalable, spectral-element-based prototype for the Community Atmospheric Model component of the Community Climate System Model. The 3D moist primitive equations are solved on the cubed sphere with a hybrid pressure 77 vertical coordinate using an Emanuel convective parametrization for moist processes. Semi-implicit time integration, based on a preconditioned conjugate gradient solver, circumvents the time step restrictions associated with gravity waves. Benchmarks for two standard tests problems at 10 km horizontal resolution have been run on Blue Gene/L. Results obtained on a 32-rack Blue Gene/L system (65,536 processors, 183.5-teraflop peak) show sustained performance of 8.0 teraflops on 32,768 processors for the moist Held-Suarez test problem in coprocessor mode and 11.3 teraflops on 32,768 processors for the aquaplanet test problem, running in virtual node mode.

引用

页码：237 / 253

页数：17

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