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Effective out-of-core parallel Delaunay mesh refinement using off-the-shelf software

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3 Author(s)
Kot, A. ; Dept. of Comput. Sci., Coll. of William & Mary, Williamsburg, VA ; Chernikov, A. ; Chrisochoides, N.

We present two cost-effective and high-performance out-of-core parallel mesh generation algorithms and their implementation on cluster of workstations (CoWs). The total wall-clock time including wait-in-queue delays for the out-of-core methods on a small cluster (16 processors) is three times shorter than the total wall-clock time for the in-core generation of the same size mesh (about a billion elements) using 121 processors. Our best out-of-core method, for mesh sizes that fit completely in the core of the CoWs, is about 5% slower than its in-core parallel counterpart method. This is a modest performance penalty for savings of many hours in response time. Both the in-core and out-of-core methods use the best publicly available off-the-shelf sequential in-core Delaunay mesh generator

Published in:

Parallel and Distributed Processing Symposium, 2006. IPDPS 2006. 20th International

Date of Conference:

25-29 April 2006

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