一种统一的资源预留策略

资源预留可以保证任务在开始执行时获得资源,而这在网格这样资源动态性很强的环境中是很可贵的,因而资源预留是网格任务调度中一种普遍采用的策略。当前资源预留的研究主要集中在计算资源预留的情况,文中提出了一个网格环境中资源预留的统一策略,该策略对其它资源的预留和计算资源的预留一起加以考虑,经过模拟验证,该策略能够很好地和我们先前设计的一种基于资源预留的任务映射算法结合起来,适用于网格的动态、异构性环境。

A Unified Resource Reservation Policy

Resource reservation provides concurrent access to resources for execution of tasks,it's a valuable nature in the dynamic environment of Grid,in hence,resource reservation is a method widely used in task-scheduling module of Grid systems.In this paper,according to the situation that most research on resource reservation focus on the computational resource,A unified resource reservation policy is provided to consider the reservation of other resources with computational ones at one time,and the simulation results shows,the policy works well with the algorithm we put forward previously which based on resource reservation,and the policy can be applied to the dynamic and heterogeneous resource environment of Grids.