A Java Simulator for Tuplespaces Based Computational Grids

jSimGTS is a simulator for a computational grid. The jSimGTS is developed to simulate GridTS i.e. Grids based on tuplespaces. jSimGTS is the first simulator that uses the tuplespace as its communication middleware. jSimGTS provides an extensible, fault-tolerant platform to develop and simulate various fault tolerant scheduling algorithms. jSimGTS is a platform independent simulator, developed using Java and a real world tuplespace implementation, IBM TSpaces. The paper presents the architecture and implementation of jSimGTS, simulation results for classical scheduling algorithms, and proposed enhancements to the current infrastructure. jSimGTS can be run locally with multithreaded simulations for Grid nodes as well as on multiple machines to perform real network based simulations.