Application of Simulated Annealing to Data Distribution for All-to-All Comparison Problems in Homogeneous Systems
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Distributed systems are widely used for solving large-scale and data-intensive computing problems, including all-to-all comparison (ATAC) problems. However, when used for ATAC problems, existing computational frameworks such as Hadoop focus on load balancing for allocating comparison tasks, without careful consideration of data distribution and storage usage. While Hadoop-based solutions provide users with simplicity of implementation, their inherent MapReduce computing pattern does not match the ATAC pattern. This leads to load imbalances and poor data locality when Hadoop’s data distribution strategy is used for ATAC problems. Here we present a data distribution strategy which considers data locality, load balancing and storage savings for ATAC computing problems in homogeneous distributed systems. A simulated annealing algorithm is developed for data distribution and task scheduling. Experimental results show a significant performance improvement for our approach over Hadoop-based solutions.
KeywordsSimulated Annealing Load Balance Data Item Task Schedule Task Allocation
Author J. Gao would like to acknowledge the support from the National Natural Science Foundation of China under the Grant Number 61462070, and the Inner Mongolia Government under the Science and Technology Plan Grant Number 20130364.
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