NDLI: Unstructured adaptive grid computations on an array of smps

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Unstructured adaptive grid computations on an array of smps

Content Provider	NASA Technical Reports Server (NTRS)
Author	Sohn, Andrew Simon, Horst D. Biswas, Rupak Pramanick, Ira
Copyright Year	1996
Description	Dynamic load balancing is necessary for parallel adaptive methods to solve unsteady CFD problems on unstructured grids. We have presented such a dynamic load balancing framework called JOVE, in this paper. Results on a four-POWERnode POWER CHALLENGEarray demonstrated that load balancing gives significant performance improvements over no load balancing for such adaptive computations. The parallel speedup of JOVE, implemented using MPI on the POWER CHALLENCEarray, was significant, being as high as 31 for 32 processors. An implementation of JOVE that exploits 'an array of SMPS' architecture was also studied; this hybrid JOVE outperformed flat JOVE by up to 28% on the meshes and adaption models tested. With large, realistic meshes and actual flow-solver and adaption phases incorporated into JOVE, hybrid JOVE can be expected to yield significant advantage over flat JOVE, especially as the number of processors is increased, thus demonstrating the scalability of an array of SMPs architecture.
File Size	609208
Page Count	12
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19960049718
Archival Resource Key	ark:/13960/t8nd0wj7b
Language	English
Publisher Date	1996-07-01
Access Restriction	Open
Subject Keyword	Computer Programming And Software Balancing Computational Fluid Dynamics Unstructured Grids Mathematics Massively Parallel Processors Dynamic Loads Architecture Computers Unsteady Flow Memory Computers Parallel Processing Computers Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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