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Global and Integrated Processor , Memory and Disk Management in a Cluster of SMP ’ s

Due to the increasing power of microprocessors and the evolution of networking technology, clusters of SMP’s are now attractive for executing data and/or computation intensive applications. A key problem is to ensure both high performance and high availability properties that are needed for proper execution of long-running parallel applications on a cluster. In this paper, we present the design of Gobelins, a cluster operating system, aiming at providing these two properties to parallel applications based on the shared memory programming model. Gobelins relies on global and integrated management of all memory, disk and processor resources in a cluster. It is currently under development as an extension of Linux operating system for a cluster of dual processor PCs interconnected by a low latency high bandwidth network.