Date: 17 Jul 2001

Capacity and Capability Computing Using Legion

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Computational Scientists often cannot easily access the large amounts of resources their applications require. Legion is a collection of software services that facilitate the secure and easy use of local and non-local resources by providing the illusion of a single virtual machine from heterogeneous, geographically-distributed resources. This paper describes the newest additions to Legion that enable high-performance (capacity) computing as well as secure, fault-tolerant and collaborative (capability) computing.