NDLI: High-Cost CFD on a Low-Cost Cluster

Content Provider	IEEE Xplore Digital Library
Author	Hauser, T. Mattox, T.I. LeBeau, R.P. Dietz, H.G. Huang, P.G.
Copyright Year	2000
Description	Author affiliation: University of Kentucky (Hauser, T.)
Abstract	Direct numerical simulation of the Navier-Stokes equations (DNS) is an important technique for the future of computational fluid dynamics (CFD) in engineering applications. However, DNS requires massive computing resources. This paper presents a new approach for implementing high-cost DNS CFD using low-cost cluster hardware. After describing the DNS CFD code DNSTool, the paper focuses on the techniques and tools that we have developed to customize the performance of a cluster implementation of this application. This tuning of system performance involves both recoding of the application and careful engineering of the cluster design. Using the cluster KLAT2 (Kentucky Linux Athlon Testbed 2), while DNSTool cannot match the $0.64 per MFLOPS that KLAT2 achieves on single precision ScaLAPACK, it is very efficient; DNSTool on KLAT2 achieves price/performance of $2.75 per MFLOPS double precision and $1.86 single precision. Further, the code and tools are all, or will soon be, made freely available as full source code.
Starting Page	55
Ending Page	55
File Size	2569481
Page Count	1
File Format	PDF
ISBN	0780398025
ISSN	10639535
DOI	10.1109/SC.2000.10020
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-11-04
Access Restriction	Subscribed
Rights Holder	Non IEEE
Subject Keyword	Computational fluid dynamics Linux Application software Supercomputers Costs Personal communication networks Bandwidth Hardware Design engineering Testing
Content Type	Text
Resource Type	Article

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