Enhancements of the MOSIX Management Scheme to Support Grid Computing Amnon Barak The Hebrew University of Jerusalem http://www.mosix.cs.huji.ac.il Abstract -------- MOSIX is a cluster management system that provides a single-system image by automatic workload distribution and preemptive process migration. Recently, it was extended with new features to support grid com- puting, including dynamic grid partitioning; grid-wide process migration; migration out of guest processes when a cluster is reclaimed or is about to be disconnected from the grid; autonomy of each cluster owner to join or leave the grid; a priority scheme that gives preferences to resident users (in each cluster) over guest processes (from other clusters); flood control and a secure run-time environment (sandbox) which guarantees that guest processes cannot access unauthorized local resources. The resulting system could particularly be useful to create an intra-organizational grid e.g., between branches of an enterprise or a campus grid. The presentation begins with a brief overview of management sys- tems followed by an explanation of the MOSIX approach, its clus- ter and grid services. Bio: Amnon Barak is Strauss Professor of Computer Science and Director of the distributed systems research lab in the department of Computer Science at The Hebrew University of Jerusalem. He received the B.S. degree in mathematics from the Technion, and the M.S. and Ph.D. degrees in computer science from the University of Illinois at Urbana-Champaign. His primary research interests include parallel and distributed systems, management systems for clusters and grids, dynamic resource allocation, parallel I/O, high availability and competitive algorithms for resource management in clusters and grids.