NDLI: Hypergraph-based dynamic load balancing for adaptive scientific computations (2007)

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Hypergraph-based dynamic load balancing for adaptive scientific computations (2007)

Content Provider	CiteSeerX
Author	Catalyurek, Umit V. Boman, Erik G. Devine, Karen D. Bozdag, Doruk Heaphy, Robert Riesen, Lee Ann
Description	Adaptive scientific computations require that periodic repartitioning (load balancing) occur dynamically to maintain load balance. Hypergraph partitioning is a successful model for minimizing communication volume in scientific computations, and partitioning software for the static case is widely available. In this paper, we present a new hypergraph model for the dynamic case, where we minimize the sum of communication in the application plus the migration cost to move data, thereby reducing total execution time. The new model can be solved using hypergraph partitioning with fixed vertices. We describe an implementation of a parallel multilevel repartitioning algorithm within the Zoltan load-balancing toolkit, which to our knowledge is the first code for dynamic load balancing based on hypergraph partitioning. Finally, we present experimental results that demonstrate the effectiveness of our approach on a Linux cluster with up to 64 processors. Our new algorithm compares favorably to the widely used ParMETIS partitioning software in terms of quality, and would have reduced total execution time in most of our test cases.
File Format	PDF
Language	English
Publisher Date	2007-01-01
Publisher Institution	IN PROC. OF 21ST INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM (IPDPS’07). IEEE, 2007. BEST ALGORITHMS PAPER AWARD
Access Restriction	Open
Subject Keyword	Static Case Load Balancing Linux Cluster Periodic Repartitioning Successful Model New Algorithm Dynamic Load Total Execution Time Dynamic Case Hypergraph Partitioning Fixed Vertex Hypergraph-based Dynamic Load New Hypergraph Model New Model Parallel Multilevel Communication Volume Test Case First Code Zoltan Load-balancing Toolkit Experimental Result Adaptive Scientific Computation Load Balance Migration Cost Scientific Computation
Content Type	Text
Resource Type	Article

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