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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Talby, D. Feitelson, D.G. |
| Copyright Year | 2005 |
| Description | Author affiliation: Hebrew Univ., Jerusalem, Israel (Talby, D.; Feitelson, D.G.) |
| Abstract | The scheduler is a key component in determining the overall performance of a parallel computer, and as we show here, the schedulers in wide use today exhibit large unexplained gaps in performance during their operation. Also, different scheduling algorithms often vary in the gaps they show, suggesting that choosing the correct scheduler for each time frame can improve overall performance. We present two adaptive algorithms that achieve this: One chooses by recent past performance, and the other by the recent average degree of parallelism, which is shown to be correlated to algorithmic superiority. Simulation results for the algorithms on production workloads are analyzed, and illustrate unique features of the chaotic temporal structure of parallel workloads. We provide best parameter configurations for each algorithm, which both achieve average improvements of 10% in performance and 35% in stability for the tested workloads. |
| Sponsorship | IEEE Comput. Soc. Tech. Comm. on Parallel Process |
| File Size | 155616 |
| File Format | |
| ISBN | 0769523129 |
| DOI | 10.1109/IPDPS.2005.252 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2005-04-04 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Computer performance Processor scheduling Concurrent computing Scheduling algorithm Adaptive algorithm Parallel processing Analytical models Production Algorithm design and analysis Chaos |
| Content Type | Text |
| Resource Type | Article |
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