Browse > Article
http://dx.doi.org/10.3745/KIPSTA.2011.18A.4.143

An EDF Based Real-Time Scheduling Algorithm for Imprecise Computation  

Choi, Hwan-Pil (강원대학교 컴퓨터정보통신공학부)
Kim, Yong-Seok (강원대학교 컴퓨터학부)
Publication Information
The KIPS Transactions:PartA / v.18A, no.4, 2011 , pp. 143-150 More about this Journal
Abstract
This paper presents an EDF based scheduling algorithm for scheduling imprecise computation model where each task consists of mandatory part and optional part. Imprecise computation is useful to manage overload condition. In overload situation, some optional parts should be removed. The proposed DOP algorithm removes optional parts of earlier deadline tasks to enhance flexibly for newly arriving tasks. A simulation result shows that DOP has better performance than other algorithms.
Keywords
Real-Time System; Imprecise Computation Model; On-line Scheduling; Aperiodic Task;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Damir Poles, Leo Budin, "Imprecise Computation Model, Synchronous Periodic Real-time Task Sets and Total Weighted Error", Journal of Computing and Information Technology, Vol.18, No.4, 2010.
2 J. Liu, K. Lin, W. Shih, A. Yu, J. Chung, and W. Zhao, "Algorithms for scheduling imprecise computation," Computer, Vol.24, No.5, May, 1991.
3 Shih, W.-K., Liu, J.W.S., Chung, J.-Y., "Fast algorithms for scheduling imprecise computations", In proceedings of the Real Time Systems Symposium, IEEE Computer Society Press, 1989.   DOI
4 Shih, W.-K., Liu, J.W.S., "On-line scheduling of imprecise computations to minimize error", Real-Time Systems Symposium, 1992.   DOI
5 Jai-Hoon Kim, Kihyun Song, Kyunghee Choi, Gihyun Jung, SeunHun Jung, "Performance evaluation of on-line scheduling algorithms for imprecise computation", Real-Time Computing Systems and Applications, 1998.   DOI
6 Cho, S., Lee, S., Ahn, S., and Lin, K., "Efficient Real-Time Scheduling Algorithms for Multiprocessor Systems," IEICE Trans, Commun., Vol.E85-B, No.12, pp.2859-2867, 2002.
7 Giorgio C. Buttazzo, "Hard real-time computing systems", 2nd Ed., Springer, 2005.
8 C. L. Liu and J. W. Layland, "Scheduling Algorithms for Multiprogramming in a Hard-Real-Time Environment", Journal of the ACM, Vol.20, No.1, pp.46-61, 1973.   DOI
9 Liu, J. W., Real-Time Systems, p.70, Prentice Hall, 2000.
10 Jia-Ming Chen, Wan-Chen Lu, Wei-Kuan Shih and Ming-Chung Tang, "Imprecise Computations with Deferred Optional Tasks", Journal of Information Science and Engineering 25, 185-200, 2009.
11 Radhakrishna Naik, R. R. Manthalkar, "Modified IUF Scheduling Algorithm for the Real Time Systems," ICETET-10,IEEE third International Conference on Emerging Trends in Engineering & Technology, pp.712-716, 2010.   DOI