Quality of service in global grid computing

This tutorial tries to address some of the issue related to the keywords present in Foster´s grid computing definition. Specifically it tackles the problem of providing global grid computing applications with a network infrastructure able to guarantee quality of service. After reviewing the basics of grid computing, this tutorial focuses on specific network infrastructure issues. Quality of service (QoS) parameters such as throughput, delay, and resilience are considered. It is shown that how the integration of the grid programming environment with an intelligent grid network infrastructure allows to dynamically adapt the utilized computational and network resources to meet the application QoS requirements transparently to the user. Finally the performance evaluation of a specific implementation of an integrated application and network layer resilience scheme is presented.