Spherical region queries on multicore architectures

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2 Scopus citations

Abstract

In this short paper, we report the performance of multiple threadparallel algorithms for spherical region queries on multicore architectures motivated by a challenging data analytics application in materials science. Performances of two tree-based algorithms and a naive algorithm are compared to identify the length scales at which these approaches perform optimally. The optimal algorithm is then used to scale the driving materials science application, which is shown to deliver over 17X speedup using 32 OpenMP threads on data sets containing many millions of atoms.

Original languageEnglish
Title of host publicationProceedings of IA3 2017
Subtitle of host publication7th Workshop on Irregular Applications: Architectures and Algorithms, Held in conjunction with SC 2017: The International Conference for High Performance Computing, Networking, Storage and Analysis
PublisherAssociation for Computing Machinery, Inc
ISBN (Electronic)9781450351362
DOIs
StatePublished - Nov 12 2017
Event7th Workshop on Irregular Applications: Architectures and Algorithms, IA3 2017 - Denver, United States
Duration: Nov 12 2017Nov 17 2017

Publication series

NameProceedings of IA3 2017: 7th Workshop on Irregular Applications: Architectures and Algorithms, Held in conjunction with SC 2017: The International Conference for High Performance Computing, Networking, Storage and Analysis

Conference

Conference7th Workshop on Irregular Applications: Architectures and Algorithms, IA3 2017
Country/TerritoryUnited States
CityDenver
Period11/12/1711/17/17

Funding

This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan).

FundersFunder number
LLC
UT-Battelle

    Keywords

    • Kd-tree
    • Multicore architecture
    • Range tree
    • Spherical region queries

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