【摘要】 针对利用网上空闲机进行非专用机群分布式并行计算的环境,研究复杂通用网络上用什么指标发现空闲处理机及如何实时衡量处理机的负载变化以调度分配处理机。在研究现有分布式系统和专用机群负载指标的基础上,提出了一种适用于网络机群计算环境的复合型负载指标,详细讨论了它在系统中的作用和实现,并通过大量测试分析实验,得出了一个合理的负载指标更新周期。更多还原

【Abstract】 In the network cluster system which is composed of some idle workstations to do distributed and parallel computing,it is one of primary issues to use what index to find idle workstations on the network and how to estimate the load level of a workstation so that to schedule processors dynamically.Based on the study of some current load index application in distributed systems,a new multiplex load index is proposed to satisfy network cluster computing system.Its function in the system is described in detail.The reasonable refreshing period of the load index is also discussed according to the lots of application measurements.更多还原