Title
ArborX: A Performance Portable Geometric Search Library
Abstract
AbstractSearching for geometric objects that are close in space is a fundamental component of many applications. The performance of search algorithms comes to the forefront as the size of a problem increases both in terms of total object count as well as in the total number of search queries performed. Scientific applications requiring modern leadership-class supercomputers also pose an additional requirement of performance portability, i.e., being able to efficiently utilize a variety of hardware architectures. In this article, we introduce a new open-source C++ search library, ArborX, which we have designed for modern supercomputing architectures. We examine scalable search algorithms with a focus on performance, including a highly efficient parallel bounding volume hierarchy implementation, and propose a flexible interface making it easy to integrate with existing applications. We demonstrate the performance portability of ArborX on multi-core CPUs and GPUs and compare it to the state-of-the-art libraries such as Boost.Geometry.Index and nanoflann.
Year
DOI
Venue
2021
10.1145/3412558
ACM Transactions on Mathematical Software
Keywords
DocType
Volume
Bounding volume hierarchy, performance portable algorithm, geometric search
Journal
47
Issue
ISSN
Citations 
1
0098-3500
1
PageRank 
References 
Authors
0.35
0
4
Name
Order
Citations
PageRank
Damien Lebrun-Grandie140.77
Andrey Prokopenko210.35
Bruno Turcksin351.47
Stuart R. Slattery421.04