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Civil-Comp Proceedings
ISSN 1759-3433 CCP: 45
ADVANCES IN COMPUTATIONAL MECHANICS FOR PARALLEL AND DISTRIBUTED PROCESSING Edited by: B.H.V. Topping
Paper IV.2
Improved Parallel Mesh Generation through Dynamic Load Balancing N. Touheed and P.K. Jimack
School of Computer Studies, University of Leeds, Leeds, United Kingdom N. Touheed, P.K. Jimack, "Improved Parallel Mesh Generation through Dynamic Load Balancing", in B.H.V. Topping, (Editor), "Advances in Computational Mechanics for Parallel and Distributed Processing", Civil-Comp Press, Edinburgh, UK, pp 105-111, 1997. doi:10.4203/ccp.45.4.2
Abstract
Parallel mesh generation is an important feature of any
large distributed memory parallel computational mechanics
code due to the need to ensure that (i) there are no sequential
bottlenecks within the code, (ii) there is no parallel
overhead incurred in partitioning an existing mesh and
(iii) that no single processor is required to have enough
local memory to be able to store the entire mesh. In recent
years numerous algorithms have been proposed for
the generation of unstructured finite element and finite
volume meshes in parallel. One of the main problems
with many of these approaches however is that the final
mesh, once generated, cannot generally be guaranteed
to be perfectly load-balanced. In this paper we propose
a post-processing step for the parallel mesh generator,
based upon a cheap and efficient dynamic load-balancing
technique. This technique is described and a number of
numerical examples are presented in order to demonstrate
that the quality of the partition of the mesh can be improved
significantly at only a small additional computational
cost.
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