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Load Balancing Strategies for Multi-Block Overset Grid ApplicationsThe multi-block overset grid method is a powerful technique for high-fidelity computational fluid dynamics (CFD) simulations about complex aerospace configurations. The solution process uses a grid system that discretizes the problem domain by using separately generated but overlapping structured grids that periodically update and exchange boundary information through interpolation. For efficient high performance computations of large-scale realistic applications using this methodology, the individual grids must be properly partitioned among the parallel processors. Overall performance, therefore, largely depends on the quality of load balancing. In this paper, we present three different load balancing strategies far overset grids and analyze their effects on the parallel efficiency of a Navier-Stokes CFD application running on an SGI Origin2000 machine.
Document ID
20030014825
Acquisition Source
Ames Research Center
Document Type
Preprint (Draft being sent to journal)
Authors
Djomehri, M. Jahed (Computer Sciences Corp. Moffett Field, CA United States)
Biswas, Rupak (NASA Ames Research Center Moffett Field, CA United States)
Lopez-Benitez, Noe (Texas Technological Univ. Lubbock, TX United States)
Biegel, Bryan
Date Acquired
September 7, 2013
Publication Date
October 1, 2002
Subject Category
Computer Programming And Software
Meeting Information
Meeting: ISCA 18th International Conference on Computers and Their Applications
Location: Honolulu, HI
Country: United States
Start Date: March 26, 2003
End Date: March 28, 2003
Sponsors: International Society for Computers and Their Applications
Funding Number(s)
CONTRACT_GRANT: NASA Order A-61812-D
CONTRACT_GRANT: DTTS59-99-D-00437
Distribution Limits
Public
Copyright
Public Use Permitted.

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