Engineering a high-performance GPU B-tree

Muhammad A. Awad, Saman Ashkiani, Rob Johnson, Martín Farach-Colton, John D. Owens

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

We engineer a GPU implementation of a B-Tree that supports concurrent queries (point, range, and successor) and updates (insertions and deletions). Our B-tree outperforms the state of the art, a GPU log-structured merge tree (LSM) and a GPU sorted array. In particular, point and range queries are significantly faster than in a GPU LSM (the GPU LSM does not implement successor queries). Furthermore, B-Tree insertions are also faster than LSM and sorted array insertions unless insertions come in batches of more than roughly 100k. Because we cache the upper levels of the tree, we achieve lookup throughput that exceeds the DRAM bandwidth of the GPU. We demonstrate that the key limiter of performance on a GPU is contention and describe the design choices that allow us to achieve this high performance.

Original languageEnglish (US)
Title of host publicationPPoPP 2019 - Proceedings of the 24th Principles and Practice of Parallel Programming
PublisherAssociation for Computing Machinery
Pages145-157
Number of pages13
ISBN (Electronic)9781450362252
DOIs
StatePublished - Feb 16 2019
Event24th ACM SIGPLAN Symposium on Principles and Practice of Parallel Programming, PPoPP 2019 - Washington, United States
Duration: Feb 16 2019Feb 20 2019

Publication series

NameProceedings of the ACM SIGPLAN Symposium on Principles and Practice of Parallel Programming, PPOPP

Conference

Conference24th ACM SIGPLAN Symposium on Principles and Practice of Parallel Programming, PPoPP 2019
CountryUnited States
CityWashington
Period2/16/192/20/19

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All Science Journal Classification (ASJC) codes

  • Software

Keywords

  • B-tree
  • Data structures
  • Dynamic
  • GPU
  • Mutable

Cite this

Awad, M. A., Ashkiani, S., Johnson, R., Farach-Colton, M., & Owens, J. D. (2019). Engineering a high-performance GPU B-tree. In PPoPP 2019 - Proceedings of the 24th Principles and Practice of Parallel Programming (pp. 145-157). (Proceedings of the ACM SIGPLAN Symposium on Principles and Practice of Parallel Programming, PPOPP). Association for Computing Machinery. https://doi.org/10.1145/3293883.3295706