NDLI: High-Performance Reactive Fluid Flow Simulations Using Adaptive Mesh Refinement on Thousands of Processors

Content Provider	IEEE Xplore Digital Library
Author	Calder, A.C. Curts, B.C. Dursi, L.J. Fryxell, B. Henry, G. MacNece, P. Olson, K. Ricker, P. Rosner, R. Timmes, F.X. Tufo, H.M. Truran, J.W. Zingale, M.
Copyright Year	2000
Description	Author affiliation: The University of Chicago (Calder, A.C.)
Abstract	We present simulations and performance results of nuclear burning fronts in super- novae on the largest domain and at the finest spatial resolution studied to date. These simulations were performed on the Intel ASCI-Red machine at Sandia National Laboratories using FLASH, a code developed at the Center for Astrophysical Thermonuclear Flashes at the University of Chicago. FLASH is a modular, adaptive mesh, parallel simulation code capable of handling compressible, reactive fluid flows in astrophysical environments. FLASH is written primarily in Fortran 90, uses the Message-Passing Interface library for inter-processor communication and portability, and employs the PARAMESH package to manage a block-structured adaptive mesh that places blocks only where resolution is required and tracks rapidly changing flow features, such as detonation fronts, with ease. We describe the key algorithms and their implementation as well as the optimizations required to achieve sustained performance of 238 GFLOPS on 6420 processors of ASCI-Red in 64 bit arithmetic.
Starting Page	56
Ending Page	56
File Size	642264
Page Count	1
File Format	PDF
ISBN	0780398025
ISSN	10639535
DOI	10.1109/SC.2000.10010
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	Fluid flow Adaptive mesh refinement Spatial resolution Libraries Equations Computational modeling Laboratories Chemical elements Packaging Arithmetic
Content Type	Text
Resource Type	Article

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