Parallel lattice basis reduction using a multi-threaded Schnorr-Euchner LLL algorithm

Werner Backes, Susanne Wetzel

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper, we introduce a new parallel variant of the LLL lattice basis reduction algorithm. Our new, multi-threaded algorithm is the first to provide an efficient, parallel implementation of the Schorr-Euchner algorithm for today's multi-processor, multi-core computer architectures. Experiments with sparse and dense lattice bases show a speed-up factor of about 1.8 for the 2-thread and about factor 3.2 for the 4-thread version of our new parallel lattice basis reduction algorithm in comparison to the traditional non-parallel algorithm.

Original languageEnglish
Title of host publicationEuro-Par 2009 Parallel Processing - 15th International Euro-Par Conference, Proceedings
Pages960-973
Number of pages14
DOIs
StatePublished - 2009
EventEuro-Par 2009 Parallel Processing - 15th International Euro-Par Conference, Proceedings - Delft, Netherlands
Duration: Aug 25 2009Aug 28 2009

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume5704 LNCS

Conference

ConferenceEuro-Par 2009 Parallel Processing - 15th International Euro-Par Conference, Proceedings
Country/TerritoryNetherlands
CityDelft
Period8/25/098/28/09

ASJC Scopus subject areas

  • Theoretical Computer Science
  • General Computer Science

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