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Efficient Parallel Multi-way Merging on Heterogeneous Multi-core Cluster

Authors: Cheng Zhong, Wei Wei,

Publish Date: 2013/5/20
Volume: , Issue:, Pages: 112-123
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Data merging and sorting are often applied to the scientific and engineering applications such as computational fluid dynamics and computation geometry. By constructing a data sending matrix, solving the data exchange range and determining the data exchange order among compute nodes to reduce the communication overhead, this paper proposes a load-balance data distribution strategy among nodes, and designs a communication-efficient parallel multi-way merging algorithm on the heterogeneous cluster with the multi-core compute nodes which have different computation speed, communication rate and memory capacity. The experimental results on the heterogeneous cluster with multi-core machines show that the proposed parallel merging algorithm obtains high speedup and has good scalability.



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