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Coordinated Runtime Adaptations in Cooperative Open Real-Time Systems

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3 Author(s)
Nogueira, L. ; IPP Hurray Res. Group, Polytech. Inst. of Porto, Porto, Portugal ; Pinho, L.M. ; Coelho, J.

This paper proposes an one-step decentralised coordination model based on an effective feedback mechanism to reduce the complexity of the needed interactions among inter-dependent nodes of a cooperative distributed system until a collective adaptation behaviour is determined. Positive feedback is used to reinforce the selection of the new desired global service solution, while negative feedback discourages nodes to act in a greedy fashion as this adversely impacts on the provided service levels at neighbouring nodes. The reduced complexity and overhead of the proposed decentralised coordination model are validated through extensive evaluations.

Published in:

Computational Science and Engineering, 2009. CSE '09. International Conference on  (Volume:2 )

Date of Conference:

29-31 Aug. 2009

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