Execution time estimation for workflow scheduling
Estimation of the execution time is an important part of the workflow scheduling problem. The aim of this paper is to highlight common problems in estimating the workflow execution time and propose a solution that takes into account the complexity and the randomness of the workflow components and th...
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| Veröffentlicht in: | 2014 9th Workshop on Workflows in Support of Large-Scale Science S. 1 - 10 |
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| Hauptverfasser: | , , , |
| Format: | Tagungsbericht |
| Sprache: | Englisch |
| Veröffentlicht: |
Piscataway, NJ, USA
IEEE Press
16.11.2014
IEEE |
| Schriftenreihe: | ACM Conferences |
| Schlagworte: | |
| ISBN: | 1479970670, 9781479970674 |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | Estimation of the execution time is an important part of the workflow scheduling problem. The aim of this paper is to highlight common problems in estimating the workflow execution time and propose a solution that takes into account the complexity and the randomness of the workflow components and their runtime. The solution proposed in this paper addresses the problems at different levels from task to workflow, including the error measurement and the theory behind the estimation algorithm. The proposed estimation algorithm can be integrated easily into a wide class of schedulers as a separate module. We use a dual stochastic representation, characteristic/distribution functions, in order to combine tasks' estimates into the overall workflow makespan. Additionally, we propose the workflow reductions - the operations on a workflow graph that do not decrease the accuracy of the estimates, but simplify the graph structure, hence increasing the performance of the algorithm. |
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| ISBN: | 1479970670 9781479970674 |
| DOI: | 10.1109/WORKS.2014.11 |

