NDLI: Nonlinear structural response using adaptive dynamic relaxation on a massively-parallel-processing system

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Nonlinear structural response using adaptive dynamic relaxation on a massively-parallel-processing system

Content Provider	NASA Technical Reports Server (NTRS)
Author	Knight Jr., Norman F. Oakley, David R.
Copyright Year	1994
Description	A parallel adaptive dynamic relaxation (ADR) algorithm has been developed for nonlinear structural analysis. This algorithm has minimal memory requirements, is easily parallelizable and scalable to many processors, and is generally very reliable and efficient for highly nonlinear problems. Performance evaluations on single-processor computers have shown that the ADR algorithm is reliable and highly vectorizable, and that it is competitive with direct solution methods for the highly nonlinear problems considered. The present algorithm is implemented on the 512-processor Intel Touchstone DELTA system at Caltech, and it is designed to minimize the extent and frequency of interprocessor communication. The algorithm has been used to solve for the nonlinear static response of two and three dimensional hyperelastic systems involving contact. Impressive relative speedups have been achieved and demonstrate the high scalability of the ADR algorithm. For the class of problems addressed, the ADR algorithm represents a very promising approach for parallel-vector processing.
File Size	2765760
Page Count	43
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19950006749
Archival Resource Key	ark:/13960/t5m954x3z
Language	English
Publisher Date	1994-06-15
Access Restriction	Open
Subject Keyword	Structural Mechanics Algorithms Interprocessor Communication Nonlinearity Massively Parallel Processors Vector Processing Computers Parallel Processing Computers Elastic Bodies Structural Analysis Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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