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What is Task Scheduling

Handbook of Research on Grid Technologies and Utility Computing: Concepts for Managing Large-Scale Applications
The process of task scheduling partitions a Grid application into sub-tasks and assigns each sub-task to a selected set of resources based on the pre-developed QoS models to support or optimize user required application QoS.
Published in Chapter:
Quality of Service of Grid Computing
Ming Wu (Illinois Institute of Technology, USA) and Xian-He Sun (Illinois Institute of Technology, USA)
DOI: 10.4018/978-1-60566-184-1.ch007
Rapid advancement of communication technology has changed the landscape of computing. New models of computing, such as business-on-demand, Web services, peer-to-peer networks, and Grid computing have emerged to harness distributed computing and network resources to provide powerful services. The non-deterministic characteristic of the resource availability in these new computing platforms raises an outstanding challenge: how to support Quality of Service (QoS) to meet a user’s demand? This chapter conducts a thorough study of QoS of distributed computing, especially on Grid computing where the requirement of distributed sharing and coordination goes to the extreme. The research starts at QoS policies, and then focuses on technical issues of the enforcement of the policies and performance optimization under each policy. This chapter provides a classification of QoS metrics and policies, a systematic understanding of QoS, and a framework for QoS of Grid computing.
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