Special section: Cluster and computational grids for scientific computing

This special section gathers the best papers of the Workshop on Clusters and Computational Grids for Scientific Computing that was held at Highland Lake Inn at Flat Rock, North Carolina, on September 10–13, 2006. This workshop is a continuation of a series of workshops started in 1992 entitled Workshop on Environments and Tools for Parallel Scientific Computing. These workshops have been held every two years and alternate between the US and France. The purpose of the workshop is to evaluate the state-of-theart and future trends for cluster computing and the use of computational grids for scientific computing. This special issue addresses Grid computing and the papers cover three main areas: