Parallelization of population-based multi-objective meta-heuristics: An empirical study

Ba�os, R.; Gil, C.; Paechter, B.; Ortega, J.

Abstract

In single-objective optimization it is possible to find a global optimum, while in the multi-objective case no optimal solution is clearly defined, but several that simultaneously optimize all the objectives. However, the majority of this kind of problems cannot be solved exactly as they have very large and highly complex search spaces. Recently, meta-heuristic approaches have become important tools for solving multi-objective problems encountered in industry as well as in the theoretical field. Most of these meta-heuristics use a population of solutions, and hence the runtime increases when the population size grows. An interesting way to overcome this problem is to apply parallel processing. This paper analyzes the performance of several parallel paradigms in the context of population-based multi-objective meta-heuristics. In particular, we evaluate four alternative parallelizations of the Pareto simulated annealing algorithm, in terms of quality of the solutions, and speedup.

Citation

Baños, R., Gil, C., Paechter, B., & Ortega, J. (2006). Parallelization of population-based multi-objective meta-heuristics: An empirical study. Applied Mathematical Modelling, 30(7), 578-592. https://doi.org/10.1016/j.apm.2005.05.021

• Journal Article Type: Article
• Acceptance Date: May 16, 2005
• Online Publication Date: Dec 19, 2005
• Publication Date: 2006-07
• Deposit Date: Dec 9, 2019
• Print ISSN: 0307-904X
• Publisher: Elsevier
• Peer Reviewed: Not Peer Reviewed
• Volume: 30
• Issue: 7
• Pages: 578-592
• DOI: https://doi.org/10.1016/j.apm.2005.05.021
• Keywords: Parallel processing, Multi-objective optimization, Pareto simulated annealing, Graph partitioning
• Public URL: http://researchrepository.napier.ac.uk/id/eprint/2658