Title

Parallelizing IDARC on a massively-parallel SIMD computer

Abstract

The software package IDARC (Inelastic Damage Analysis of Reinforced Concrete Structures) performs two-dimensional non-linear analysis of 3D building systems subjected to seismic loads. At the heart of this program lies an equation solver for solving a system of differential equations. Since the structure typically responds in the inelastic range under seismic loads, the global stiffness matrix has to be updated regularly, requiring a new system of equations to be solved each time. The system of equations is expressed in the form [A]{x} = {b}, where matrix [A] is symmetric, positive-definite, and banded. The solution of this system of linear equations turns out to be the most computationally-intensive step. In this study, sequential and parallel algorithms and implementations of Cholesky Decomposition and Gaussian Elimination on dense as well as sparse systems are explored. Empirical results and experience presented here are for the MasPar computer which is an 8192-processor, mesh-connected, SIMD (Single Instruction Multiple Data) machine.

Publication Date

1-1-1997

Publication Title

Computing in Civil Engineering (New York)

Number of Pages

741-748

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

Socpus ID

0030652672 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0030652672

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