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Cloud-edge-end workflow scheduling with multiple privacy levels
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DOI：10.1016/j.jpdc.2024.104882.png)
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摘要
En 中文
The cloud -edge -end architecture satisfies the execution requirements of various workflow applications. However, owing to the diversity of resources, the complex hierarchical structure, and different privacy requirements for users, determining how to lease suitable cloud -edge -end resources, schedule multi -privacy -level workflow tasks, and optimize leasing costs is currently one of the key challenges in cloud computing. In this paper, we address the scheduling optimization problem of workflow applications containing tasks with multiple privacy levels. To tackle this problem, we propose a heuristic privacy -preserving workflow scheduling algorithm (PWHSA) designed to minimize rental costs which includes time parameter estimation, task sub -deadline division, scheduling sequence generation, task scheduling, and task adjustment, with candidate strategies developed for each component. These candidate strategies in each step undergo statistical calibration across a comprehensive set of workflow instances. We compare the proposed algorithm with modified classical algorithms that target similar problems. The experimental results demonstrate that the PWHSA algorithm outperforms the comparison algorithms while maintaining acceptable execution times.
Keyword:
Cloud-edge-end computing
Workflow scheduling
Multi privacy level constraints
Rental cost optimization
期刊
IF:
4
论文数:
3.8K
被引数:
4.8K
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