Large-scale automatic k-means clustering for heterogeneous many-core supercomputer
Date
05/2020Author
Grant ID
EP/R010528/1
EP/P020631/1
Keywords
Metadata
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Abstract
This article presents an automatic k-means clustering solution targeting the Sunway TaihuLight supercomputer. We first introduce a multilevel parallel partition approach that not only partitions by dataflow and centroid, but also by dimension, which unlocks the potential of the hierarchical parallelism in the heterogeneous many-core processor and the system architecture of the supercomputer. The parallel design is able to process large-scale clustering problems with up to 196,608 dimensions and over 160,000 targeting centroids, while maintaining high performance and high scalability. Furthermore, we propose an automatic hyper-parameter determination process for k-means clustering, by automatically generating and executing the clustering tasks with a set of candidate hyper-parameter, and then determining the optimal hyper-parameter using a proposed evaluation method. The proposed auto-clustering solution can not only achieve high performance and scalability for problems with massive high-dimensional data, but also support clustering without sufficient prior knowledge for the number of targeted clusters, which can potentially increase the scope of k-means algorithm to new application areas.
Citation
Yu , T , Zhao , W , Liu , P , Janjic , V , Yan , X , Wang , S , Fu , H , Yang , G & Thomson , J D 2020 , ' Large-scale automatic k-means clustering for heterogeneous many-core supercomputer ' , IEEE Transactions on Parallel and Distributed Systems , vol. 31 , no. 5 , pp. 997-1008 . https://doi.org/10.1109/TPDS.2019.2955467
Publication
IEEE Transactions on Parallel and Distributed Systems
Status
Peer reviewed
ISSN
1045-9219Type
Journal article
Rights
Copyright © 2019 IEEE. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1109/TPDS.2019.2955467
Description
Funding: UK EPSRC grants ”Discovery” EP/P020631/1, ”ABC: Adaptive Brokerage for the Cloud” EP/R010528/1.Collections
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