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Dynamic, capability-driven scheduling of DAG-based real-time jobs in heterogeneous cluster
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He, Ligang, Jarvis, Stephen A., Spooner, Daniel P. and Nudd, G. R. (2004) Dynamic, capability-driven scheduling of DAG-based real-time jobs in heterogeneous cluster. International Journal of High Performance Computing and Networking (IJHPCN), Volume 2 (Number 2-4). pp. 165-177. doi:10.1504/IJHPCN.2004.008901 ISSN 1740-0562.
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Official URL: http://dx.doi.org/10.1504/IJHPCN.2004.008901
Abstract
In this research a scenario is assumed where periodic real-time jobs are being run on a heterogeneous cluster of computers, and new aperiodic parallel real-time jobs, modelled by Directed Acyclic Graphs (DAG), arrive at the system dynamically. In the scheduling scheme presented in this paper, a global scheduler situated within the cluster schedules new jobs onto the computers by modelling their spare capabilities left by existing periodic jobs. Admission control is introduced so that new jobs are rejected if their deadlines cannot be met under the precondition of still guaranteeing the real-time requirements of existing jobs. Each computer within the cluster houses a local scheduler, which uniformly schedules both periodic job instances and the subtasks in each parallel real-time job using an Early Deadline First policy. The modelling of the spare capabilities is optimal in the sense that once a new task starts running on a computer, it will utilize all the spare capability left by the periodic real-time jobs and its finish time will be the earliest possible. The performance of the proposed modelling and scheduling is evaluated through extensive simulation; the results show that the system utilization is significantly enhanced, while the real-time requirements of the existing jobs remain guaranteed.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QA Mathematics > QA76 Electronic computers. Computer science. Computer software | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Computer Science | ||||
Library of Congress Subject Headings (LCSH): | High performance computing | ||||
Journal or Publication Title: | International Journal of High Performance Computing and Networking (IJHPCN) | ||||
Publisher: | Inderscience | ||||
ISSN: | 1740-0562 | ||||
Official Date: | 2004 | ||||
Dates: |
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Volume: | Volume 2 | ||||
Number: | Number 2-4 | ||||
Page Range: | pp. 165-177 | ||||
DOI: | 10.1504/IJHPCN.2004.008901 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Date of first compliant deposit: | 28 July 2016 | ||||
Date of first compliant Open Access: | 28 July 2016 | ||||
Funder: | United States. National Aeronautics and Space Administration (NASA), Engineering and Physical Sciences Research Council (EPSRC) | ||||
Grant number: | N68171-01-C-9012 (NASA), GR/R47424/01 (EPSRC), GR/S03058/01 (EPSRC) | ||||
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