Dynamic scheduling strategy for the Chare-Kernel system

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


One of the challenges in programming distributed memory parallel machines is deciding how to allocate work to processors. This problem is particularly acute for computations with unpredictable dynamic behavior or irregular structure. The authors present a scheme for dynamic scheduling of medium-grained processes that is useful in this context. Adaptive contracting within neighborhood (ACWN) is a dynamic, distributed, self-adaptive, and scalable scheme. The basic scheme and its adaptive extensions are described and contrasted with other schemes that have been proposed in this context. The performance of all the three schemes on an iPSC/2 hypercube is presented and analyzed. The experimental results show that the ACWN algorithm achieves better performance in most cases than randomized allocation. Its agility in spreading the work helps it outperform the gradient model in performance and scalability.

Original languageEnglish (US)
Title of host publicationProc Supercomput 89
Editors Anon
PublisherPubl by IEEE
Number of pages10
StatePublished - 1989
Externally publishedYes
EventProceedings: Supercomputing '89 - Reno, NV, USA
Duration: Nov 13 1989Nov 17 1989


OtherProceedings: Supercomputing '89
CityReno, NV, USA

ASJC Scopus subject areas

  • Engineering(all)


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