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Title:
a hybrid fault-tolerant scheduling algorithm for multiprocessor in space environment
Author: Yu Xing-Biao ; Zheng Chang-Wen ; Hu Xiao-Hui ; Zhao Jun-Suo
Keyword: Multiprocessing systems ; Scheduling
Source: Yuhang Xuebao/Journal of Astronautics
Issued Date: 2013
Volume: 34, Issue:6, Pages:808-817
Indexed Type: EI
Department: (1) Institute of Software Chinese Academy of Sciences Beijing 100190 China; (2) University of Chinese Academy of Sciences Beijing 100190 China
Abstract: In order to improve the efficiency of fault-tolerant scheduling of hybrid real-time tasks in circumstance of space application, a hybrid fault-tolerant scheduling algorithm for multiprocessor in space environment is proposed. In this algorithm, a grouping based Best-Fit assignment strategy in the periodic task scheduling is used to obtain more compact scheduling result by use of a little increasing computation time, so that the number of processors and the task execution time required by the algorithm are saved. In addition, a time slice based approach is used to finish the dynamic scheduling of aperiodic tasks, thus improving the efficiency of fault-tolerant scheduling of hybrid real-time tasks and making the algorithm more suitable for the task processing in complicated space environment. It is shown from the simulation that this algorithm has important effect on improving the performance of fault-tolerant scheduling of hybrid real-time tasks.
English Abstract: In order to improve the efficiency of fault-tolerant scheduling of hybrid real-time tasks in circumstance of space application, a hybrid fault-tolerant scheduling algorithm for multiprocessor in space environment is proposed. In this algorithm, a grouping based Best-Fit assignment strategy in the periodic task scheduling is used to obtain more compact scheduling result by use of a little increasing computation time, so that the number of processors and the task execution time required by the algorithm are saved. In addition, a time slice based approach is used to finish the dynamic scheduling of aperiodic tasks, thus improving the efficiency of fault-tolerant scheduling of hybrid real-time tasks and making the algorithm more suitable for the task processing in complicated space environment. It is shown from the simulation that this algorithm has important effect on improving the performance of fault-tolerant scheduling of hybrid real-time tasks.
Language: 中文
Content Type: 期刊论文
URI: http://ir.iscas.ac.cn/handle/311060/15649
Appears in Collections:软件所图书馆_期刊论文

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Recommended Citation:
Yu Xing-Biao,Zheng Chang-Wen,Hu Xiao-Hui,et al. a hybrid fault-tolerant scheduling algorithm for multiprocessor in space environment[J]. Yuhang Xuebao/Journal of Astronautics,2013-01-01,34(6):808-817.
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