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Load balancing for parallel adaptive FEM

Load balancing for parallel adaptive FEM

Diekmann, R., Schlimbach, F. and Walshaw, C. ORCID: 0000-0003-0253-7779 (1998) Load balancing for parallel adaptive FEM. In: "Anwendungsbezogene Lastverteilung" ALV'98, 25-26 March 1998, Munich, Germany.

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We present a dynamic distributed load balancing algorithm for parallel, adaptive finite element simulations using preconditioned conjugate gradient solvers based on domain-decomposition. The load balancer is designed to maintain good partition aspect ratios. It calculates a balancing flow using different versions of diffusion and a variant of breadth first search. Elements to be migrated are chosen according to a cost function aiming at the optimization of subdomain shapes. We show how to use information from the second step to guide the first. Experimental results using Bramble's preconditioner and comparisons to existing state-of-the-art balancers show the benefits of the construction.

Item Type: Conference or Conference Paper (Paper)
Pre-2014 Departments: School of Computing & Mathematical Sciences
Last Modified: 14 Oct 2016 09:00

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