| 摘要 |
A method, system and program product for managing system resources in a system with a potentially large number of resources and tasks that need exclusive use of the resources in order to run. The system is comprised of a means of describing resources and resource selection criteria, a means of describing a task's complete resource requirements as a set of named resource selection criteria, a means of supporting alternative resource requirements for a given task and also for prioritizing across all tasks and all resource requirements by attaching a priority to each resource requirement and allowing multiple alternative resource requirements per tasks, and an efficient means of selecting simultaneously one distinct resource from each of N possibly overlapping sets of candidate resources such that any given selection is chosen with equal probability (i.e. is fair). Techniques are disclosed for gaining significant performance including employing greedy resource acquisition.
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