NDLI: Large Scale Parallel Structured AMR Calculations Using the SAMRAI Framework

Content Provider	IEEE Xplore Digital Library
Author	Wissink, A.M. Hornung, R.D. Kohn, S.R. Smith, S.S. Elliott, N.
Copyright Year	2001
Description	Author affiliation: Lawrence Livermore National Laboratory (Wissink, A.M.)
Abstract	This paper discusses the design and performance of the parallel data communication infrastructure in SAMRAI, a software framework for structured adaptive mesh refinement (SAMR) multi-physics applications. We describe requirements of such applications and how SAMRAI abstractions manage complex data communication operations found in them. Parallel performance is characterized for two adaptive problems solving hyperbolic conservation laws on up to 512 processors of the IBM ASCI Blue Pacific system. Results reveal good scaling for numerical and data communication operations but poorer scaling in adaptive meshing and communication schedule construction phases of the calculations. We analyze the costs of these different operations, addressing key concerns for scaling SAMR computations to large numbers of processors, and discuss potential changes to improve our current implementation.
Starting Page	22
Ending Page	22
File Size	391289
Page Count	1
File Format	PDF
ISBN	158113293X
DOI	10.1109/SC.2001.10029
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-11-10
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Non IEEE
Subject Keyword	Large-scale systems Adaptive mesh refinement Data communication Grid computing Government Libraries Application software Costs Scientific computing Laboratories
Content Type	Text
Resource Type	Article

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