What all software technologies are needed to build a Grid network?
Several Grid middleware software systems are available for building high-end computing Grids and their applications. Please read our article that reports results of our study on four Grid middlewares and our personal opinion/comments on how they compare and compliment each other. Based on our experience in building and enhancing World-Wide Grid network in collaboration with colleagues from around the globe, it is important to choose Grid technologies that support and work on a wide variety of resources, which are heterogenous in terms of various factors including architecture, instruction set, configuration, node operating system, and local resource managers. Within the WWG, we have supported both Unix-class resources (PCs, clusters, SMPs, etc. running Unix and its variant operating systems such as Linux, Solaris, AIX, and Irix) and Windows-class resources (mainly desktop PCs and clusters running Microsoft Windows operating system). To Grid-enable such resources, we used the following