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An Element-Based Concurrent Partitioned for Unstructured Finite Element Meshes

By Hong Q. Ding and Robert D. Ferraro


Abstract. A concurrent partilionerforpartitioning Unstructured finite element meshes on distributed memory architectures is developed. The partitioned uses an element-based partitioning strategy 1[s main advantage over the more conventional node-based partitioning strategy is its modular programing approach to the development of parallel applications. The partitionerfirst partitions element centroids ioing a recursive inertial bisection algorithm. Elements and nodes then migrate according to the pw-titioned centroids, using a data request communication template for unpredictable incoming messages. Our scalable implementation is contrasted to a non-scalable implementation which is a straightforward parallelization of a sequential partitioned. 1’Yw algorithms adopted in the partitioned scale logarithmically, as confirmed by actual timing measurements on the Intel Delta on up to 512 processorsfor scaled size problems.. 1

Year: 2009
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