Model optimization and parameter estimation with nimrod/o

  • Authors:
  • David Abramson;Tom Peachey;Andrew Lewis

  • Affiliations:
  • Caulfield School of Information Technology, Monash University, Melbourne, Australia;Caulfield School of Information Technology, Monash University, Melbourne, Australia;Division of Information Services, Griffith University, Brisbane, Australia

  • Venue:
  • ICCS'06 Proceedings of the 6th international conference on Computational Science - Volume Part I
  • Year:
  • 2006

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Abstract

Optimization problems where the evaluation step is computationally intensive are becoming increasingly common in both engineering design and model parameter estimation. We describe a tool, Nimrod/O, that expedites the solution of such problems by performing evaluations concurrently, utilizing a range of platforms from workstations to widely distributed parallel machines. Nimrod/O offers a range of optimization algorithms adapted to take advantage of parallel batches of evaluations. We describe a selection of case studies where Nimrod/O has been successfully applied, showing the parallelism achieved by this approach.