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Deadline-constraine...
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Abdi, SomayehMälardalens universitet,Inbyggda system
(författare)
Deadline-constrained security-aware workflow scheduling in hybrid cloud architecture
- Artikel/kapitelEngelska2025
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Elsevier B.V.2025
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LIBRIS-ID:oai:DiVA.org:mdh-68213
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https://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-68213URI
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https://doi.org/10.1016/j.future.2024.07.044DOI
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Språk:engelska
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Sammanfattning på:engelska
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A hybrid cloud is an efficient solution to deal with the problem of insufficient resources of a private cloud when computing demands increase beyond its resource capacities. Cost-efficient workflow scheduling, considering security requirements and data dependency among tasks, is a prominent issue in the hybrid cloud. To address this problem, we propose a mathematical model that minimizes the monetary cost of executing a workflow and satisfies the security requirements of tasks under a deadline. The proposed model fulfills data dependency among tasks, and data transmission time is formulated with exact mathematical expressions. The derived model is a Mixed-integer linear programming problem. We evaluate the proposed model with real-world workflows over changes in the input variables of the model, such as the deadline and security requirements. This paper also presents a post-optimality analysis that investigates the stability of the assignment problem. The experimental results show that the proposed model minimizes the cost by decreasing inter-cloud communications for dependent tasks. However, the optimal solutions are affected by the limitations that are imposed by the problem constraints.
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Ashjaei, Seyed Mohammad Hossein,1980-Mälardalens universitet,Inbyggda system(Swepub:mdh)mai03
(författare)
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Mubeen, SaadMälardalens universitet,Inbyggda system(Swepub:mdh)smn02
(författare)
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Mälardalens universitetInbyggda system
(creator_code:org_t)
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Ingår i:Future Generation Computer Systems: Elsevier B.V.1620167-739X1872-7115
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