دورية أكاديمية
Dynamic and Static Task Allocation for Hard Real-Time Video Stream Decoding on NoCs
| العنوان: | Dynamic and Static Task Allocation for Hard Real-Time Video Stream Decoding on NoCs |
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| المؤلفون: | Mendis, Hashan R., Audsley, Neil C., Indrusiak, Leandro Soares |
| المصدر: | Leibniz Transactions on Embedded Systems, Vol 4, Iss 2, Pp 01:1-01:25 (2017) |
| بيانات النشر: | Schloss Dagstuhl -- Leibniz-Zentrum fuer Informatik, 2017. |
| سنة النشر: | 2017 |
| المجموعة: | LCC:Technology LCC:Electrical engineering. Electronics. Nuclear engineering LCC:Electronics |
| مصطلحات موضوعية: | real-time multimedia, task mapping, network-on-chip, Technology, Electrical engineering. Electronics. Nuclear engineering, TK1-9971, Electronics, TK7800-8360 |
| الوصف: | Hard real-time (HRT) video systems require admission control decisions that rely on two factors. Firstly, schedulability analysis of the data-dependent, communicating tasks within the application need to be carried out in order to guarantee timing and predictability. Secondly, the allocation of the tasks to multi-core processing elements would generate different results in the schedulability analysis. Due to the conservative nature of the state-of-the-art schedulability analysis of tasks and message flows, and the unpredictability in the application, the system resources are often under-utilised. In this paper we propose two blocking-aware dynamic task allocation techniques that exploit application and platform characteristics, in order to increase the number of simultaneous, fully schedulable, video streams handled by the system. A novel, worst-case response time aware, search-based, static hard real-time task mapper is introduced to act as an upper-baseline to the proposed techniques. Further evaluations are carried out against existing heuristic-based dynamic mappers. Improvements to the admission rates and the system utilisation under a range of different workloads and platform sizes are explored. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2199-2002 |
| Relation: | https://drops.dagstuhl.de/storage/07lites/lites_vol004/lites_vol003_issue002/LITES-v004-i002-a001/LITES-v004-i002-a001.pdf; https://doaj.org/toc/2199-2002 |
| DOI: | 10.4230/LITES-v004-i002-a001 |
| URL الوصول: | https://doaj.org/article/4679ead9b4c04597b877fdd74595e878 |
| رقم الأكسشن: | edsdoj.4679ead9b4c04597b877fdd74595e878 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 21992002 |
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| DOI: | 10.4230/LITES-v004-i002-a001 |