Abstract
This paper presents an approach to optimal design of composite structures using Island Model Parallel Genetic Algorithm (IMPGA) with a probabilistic migration strategy and in conjunction with 3D Finite Element Method (FEM). The subject problem is computationally intensive and consumes large amount of computer space-time; an attempt has been made to spawn a variable number of processes at each node of IMPGA for FEM analysis. Comparison shows that integrated IMPGA-FEM module outperforms SGA-FEM module with respect to convergence as well as computational time significantly. The present study observes that the speed-up obtained from IMPGA-FEM module is better than the theoretical speed-up. It has also been observed that the incorporation of a probabilistic migration strategy in the IMPGA lead to a much faster and improved converged solution. Results show that for optimization with IMPGA there exists a minimum size of sub-population on each processor below which the performance deteriorates.
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Rahul, Chakraborty, D., Dutta, A. (2006). Island Model Parallel Genetic Algorithm for Optimization of Symmetric FRP Laminated Composites. In: Robert, Y., Parashar, M., Badrinath, R., Prasanna, V.K. (eds) High Performance Computing - HiPC 2006. HiPC 2006. Lecture Notes in Computer Science, vol 4297. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11945918_25
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DOI: https://doi.org/10.1007/11945918_25
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-68039-0
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