Lower bounds and efficient algorithms for multiprocessor scheduling of dags with communication delays

Hermann Jung, Lefteris Kirousis, Paul Spirakis

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

Abstract

We present here an n τ+ 1 algorithm for optimally scheduling a dag of n nodes on a multiprocessor when the message-To-instruction ratio parameter is τ. Our algorithm constructs an optimum schedule which uses at most n processors. We furthermore show lower bound results on the amount of recomputations needed, thus answering an open question posed by Papadimitriou and Yannakakis. In addition, precise lower bounds are demonstrated for the scheduling time of full binary trees. Our techniques may contribute to an important new understanding of parallel scheduling when the message delay is significant, which is usually the case.

Original languageEnglish (US)
Title of host publicationProceedings of the 1st Annual ACM Symposium on Parallel Algorithms and Architectures, SPAA 1989
EditorsF.T. Leighton
PublisherAssociation for Computing Machinery, Inc
Pages254-264
Number of pages11
ISBN (Electronic)089791323X, 9780897913232
DOIs
StatePublished - Mar 1 1989
Event1st Annual ACM Symposium on Parallel Algorithms and Architectures, SPAA 1989 - Santa Fe, United States
Duration: Jun 18 1989Jun 21 1989

Publication series

NameProceedings of the 1st Annual ACM Symposium on Parallel Algorithms and Architectures, SPAA 1989

Other

Other1st Annual ACM Symposium on Parallel Algorithms and Architectures, SPAA 1989
Country/TerritoryUnited States
CitySanta Fe
Period6/18/896/21/89

ASJC Scopus subject areas

  • Software
  • Theoretical Computer Science
  • Hardware and Architecture

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