Welcome to the proceedings of the 2008 International Conference on Grid and Pervasive Computing (GPC 2008) which was held in Kunming, Yunnan, China, May 25-28, 2008. Gridcomputing presentsa newtrendindistributed computing forcoordin- ing large-scale heterogeneous resource sharing and problem solving in dynamic, multi-institutional virtual organizations. Grid computing not only can be used for distributed supercomputing massive data processing, but can also be a c- mon platform and way for utility and service computing. It covers mainframes orsupercomputersaswellasmorepowerful personal computers and even small and smart devices, ranging from personal digital assistants to unseen chips in our cars, appliances and telephones. Projecting this trend into the future, we envision an explosion of interconnected high-performance computers and smart devices that can make our research and daily lives easier and more productive. Grid and Pervasive Computing (GPC) is an annual international conference on the emerging areas of merging grid computing and pervasive computing. GPC provides a high-pro?le, leading-edge forum for researchers and engineers alike to present their latest research in the ?eld of grid computing and pervasive computing.

This book constitutes the refereed proceedings of the Third International Conference on Grid and Pervasive Computing, GPC 2008, held in Kunming, China, in May 2008.

The 45 revised full papers presented together with 2 keynote lectures were carefully reviewed and selected from 184 submissions. The papers cover all current issues of grid and pervasive computing and focus on topics such as cluster computing, grid computing, high performance computing, network storage, peer-to-peer computing, pervasive computing, the Semantic Web and the Semantic Grid, and service-oriented computing.