Capacity and Capability Computing using Legion

. 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. 1 Introduction As available computing power increases because of faster commodity processors and faster networking, computational scientists are attempting to solve problems that were considered infeasible until recently. However, merely connecting large machines with high-speed networks is not enough; an easy-to-use and unified software environment in which to develop, test and conduct software experiments is absent. For example, users often are forced to remember mu..

Capacity and Capability Computing using Legion

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