Multi Resource Fairness: Problems and Challenges
| Authors | |
|---|---|
| Year of publication | 2014 |
| Type | Article in Proceedings |
| Conference | Job Scheduling Strategies for Parallel Processing |
| MU Faculty or unit | |
| Citation | |
| Web | webová stránka akce s odkazem na plný text publikace |
| Doi | http://dx.doi.org/10.1007/978-3-662-43779-7_5 |
| Field | Informatics |
| Keywords | Multi Resource Fairness; Fairshare; Penalty; Scheduling |
| Description | Current production resource management and scheduling systems often use some mechanism to guarantee fair sharing of computational resources among different users of the system. For example, the user who so far consumed small amount of CPU time gets higher priority and vice versa. The problem with such a solution is that it does not reflect other consumed resources like RAM, HDD storage capacity or GPU cores. Clearly, diffeffrent users may have highly heterogeneous demands concerning aforementioned resources, yet they are all prioritized only with respect to consumed CPU time. In this paper we show that such a single resource-based approach is unfair and is no longer suitable for nowadays systems. We provide a survey of existing works that somehow try to deal with this situation and we closely analyze and evaluate their characteristics. Next, we propose new enhanced approaches that would allow the development of usable multi resource-aware user prioritization mechanisms. We demonstrate that different consumed resources can be weighted and combined together within a single formula which can be used to establish users' priorities. Moreover, we show that when it comes to multiple resources, it is not always possible to find a suitable solution that would fulfill all fairness-related requirements. |
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