arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.00207cs.NIcs.AI
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多资源公平的雾计算在线任务调度

Online Task Scheduling for Fog Computing with Multi-Resource Fairness

ShanghaiTech University(上海科技大学)

Simeng Bian, Xi Huang, Ziyu Shao

摘要:

在雾计算系统中,一个关键挑战是在线任务调度,即,以决定用于从终端设备连续生成的任务的资源分配。由于雾计算系统中表现出的各种不确定性,该设计具有挑战性;例如,任务的资源需求在其实际到达之前是未知的。最近的工作已经应用深度强化学习(DRL)技术来进行在线任务调度并改进各种目标。然而,他们忽略了不同任务的多资源公平性,这是实现任务之间公平资源共享的关键,但通常并不容易实现。因此,如何设计一种具有多资源公平性的在线任务调度方案仍然是一个有待解决的问题。在本文中,我们将解决上述挑战。特别是,通过利用DRL技术,并采用主导资源公平性(DRF)的思想,我们提出了FairTS,一个在线任务调度方案,直接从经验中学习,有效地缩短平均任务减速,同时确保多资源之间的任务公平性。仿真结果表明,FairTS优于国家的最先进的计划,超低的任务减速和更好的资源公平性。

英文摘要:

In fog computing systems, one key challenge is online task scheduling, i.e., to decide the resource allocation for tasks that are continuously generated from end devices. The design is challenging because of various uncertainties manifested in fog computing systems; e.g., tasks' resource demands remain unknown before their actual arrivals. Recent works have applied deep reinforcement learning (DRL) techniques to conduct online task scheduling and improve various objectives. However, they overlook the multi-resource fairness for different tasks, which is key to achieving fair resource sharing among tasks but in general non-trivial to achieve. Thusly, it is still an open problem to design an online task scheduling scheme with multi-resource fairness. In this paper, we address the above challenges. Particularly, by leveraging DRL techniques and adopting the idea of dominant resource fairness (DRF), we propose FairTS, an online task scheduling scheme that learns directly from experience to effectively shorten average task slowdown while ensuring multi-resource fairness among tasks. Simulation results show that FairTS outperforms state-of-the-art schemes with an ultra-low task slowdown and better resource fairness.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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