In grid environment, the parallel systems inherent complexity, the mult-user environment and the large granularity of parallel tasks and so on, bring new difficulty to load balance.
在网格环境中,并行系统本身非对称带来的复杂性、多用户环境以及并行任务粒度较粗等因素给负载平衡问题的解决带来了新的困难。
However, there are inherent drawbacks in the existing patterns, the most important and universal of which is difficulty in collecting fees.
但是,现有的模式都存在着自身的缺陷,其中最主要、也最具共性的一大缺陷就是缴费难问题。
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