A Portable Parallel Equation Solver for Finite-Element Based Structural Analysis-Synthesis Codes

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by Duc T. Nguyen, Old Dominion Univ, United States,
Tarun K. Agarwal, Old Dominion Univ, United States,
Muhammad S. Benten, Old Dominion Univ, United States,
Cai Lin, Old Dominion Univ, United States,

Document Type: Proceeding Paper

Part of: Computer Utilization in Structural Engineering

Abstract: Substructuring formulation using adjoint variable approach has been developed for design sensitivity analysis and optimizations of large scale structures. In this paper, a global-local parallel procedure for finite element based structural analysis-synthesis codes is presented. Parallel computation in the global level can be achieved by using the substructuring formulation, whereas, in the local level, parallel computation can be achieved by using a parallel version of the Choleski method for the solution of the linear simultaneous equations. For large scale structural analysis and synthesis problems, the major portion of computation time is often associated with the solution of the resulting set of linear simultaneous equations. Numerical results to show the effectiveness of the proposed parallel equation solver on different parallel computers are presented in this paper.

Subject Headings: Sensitivity analysis | Structural analysis | Finite element method | Substructures | Standards and codes | Computer models | Computer programming |

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