Efficient domain decomposition of dissipative particle dynamics via choice of pseudorandom number generator

Michael Seaton, Ilian Todorov, Yaser Afshar

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

Abstract

Domain decomposition of dissipative particle dynamics is complicated by the use of random pairwise forces as a component of a momentum-conserving thermostat. The conventional use of a pseudorandom number generator for each processor core leads to the need for an additional communication step to correctly assign random forces to particles in boundary halos. To circumvent this communication, the use of a three-seed pseudorandom number generator is proposed to allow multiple processor cores to evaluate the same forces. This kind of pseudorandom number generator will be applied to the general-purpose mesoscale modelling package DL-MESO to improve its parallel scalability for large processor core counts.

Original languageEnglish (US)
Title of host publicationParallel Computing Technologies - 12th International Conference, PaCT 2013, Proceedings
PublisherSpringer Verlag
Pages250-257
Number of pages8
ISBN (Print)9783642399572
DOIs
StatePublished - 2013
Externally publishedYes
Event12th International Conference on Parallel Computing Technologies, PaCT 2013 - St. Petersburg, Russian Federation
Duration: Sep 30 2013Oct 4 2013

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume7979 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference12th International Conference on Parallel Computing Technologies, PaCT 2013
Country/TerritoryRussian Federation
CitySt. Petersburg
Period9/30/1310/4/13

Keywords

  • DL-MESO
  • Domain decomposition
  • dissipative particle dynamics
  • pseudorandom number generator

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