摘要： 任务调度对于获取高性能具有十分重要的作用，各种任务调度算法都是基于不同的假设模型。从任务模型、网络平台模型和性能目标模型3 个方面讨论了各种模型，结论为网格任务调度模型的主要发展方向是异构、非专用和多目标。

关键词: 任务调度；计算网格；异构计算；应用模型；平台模型；性能模型

Abstract: Task scheduling plays a critical role for achieving high performance, which has been an active area of research for several decades. In this paper, models for task scheduling in grid computing are surveyed. First with the application model, the divisible load model is recommend; followed by the platforms model, including processor model and network model, which is the main difference between traditionally platforms and the grid computing; next is the objective model. Several objectives are discussed and none of a single objective is satisfying, the paper proposes an integrated model to compete the problem. Finally some conclusions are drawn

Key words: Task scheduling; Computation grid; Heterogeneous computing; Application model; Platform model; Performance model