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Deadline-constraine...
Deadline-constrained security-aware workflow scheduling in hybrid cloud architecture
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- Abdi, Somayeh (författare)
- Mälardalens universitet,Inbyggda system
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- Ashjaei, Seyed Mohammad Hossein, 1980- (författare)
- Mälardalens universitet,Inbyggda system
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- Mubeen, Saad (författare)
- Mälardalens universitet,Inbyggda system
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(creator_code:org_t)
- Elsevier B.V. 2025
- 2025
- Engelska.
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Ingår i: Future Generation Computer Systems. - : Elsevier B.V.. - 0167-739X .- 1872-7115. ; 162
- Relaterad länk:
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https://doi.org/10.1...
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visa fler...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- NATURVETENSKAP -- Data- och informationsvetenskap -- Datavetenskap (hsv//swe)
- NATURAL SCIENCES -- Computer and Information Sciences -- Computer Sciences (hsv//eng)
Nyckelord
- Cost minimization
- Hybrid cloud
- Mixed integer linear programming
- Sensitivity analysis
- Workflow scheduling
- Cloud computing architecture
- Combinatorial optimization
- Cost benefit analysis
- Cryptography
- Integer programming
- Data dependencies
- Hybrid clouds
- Integer Linear Programming
- Mixed integer linear
- Security requirements
- Security-aware
- Work-flows
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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