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Physical Sciences and Mathematics Commons

Open Access. Powered by Scholars. Published by Universities.®

2002

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Dartmouth Scholarship

Distributed computing

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Full-Text Articles in Physical Sciences and Mathematics

Solar: An Open Platform For Context-Aware Mobile Applications, Guanling Chen, David Kotz Jun 2002

Solar: An Open Platform For Context-Aware Mobile Applications, Guanling Chen, David Kotz

Dartmouth Scholarship

Emerging pervasive computing technologies transform the way we live and work by embedding computation in our surrounding environment. To avoid increasing complexity, and allow the user to concentrate on her tasks, applications in a pervasive computing environment must automatically adapt to their changing \em context, including the user state and the physical and computational environment in which they run. Solar is a middleware platform to help these “context-aware” applications aggregate desired context from heterogeneous sources and to locate environmental services depending on the current context. By moving most of the context computation into the infrastructure, Solar allows applications to run …


Armada: A Parallel I/O Framework For Computational Grids, Ron Oldfield, David Kotz Mar 2002

Armada: A Parallel I/O Framework For Computational Grids, Ron Oldfield, David Kotz

Dartmouth Scholarship

High-performance computing increasingly occurs on “computational grids” composed of heterogeneous and geographically distributed systems of computers, networks, and storage devices that collectively act as a single “virtual” computer. One of the great challenges for this environment is to provide efficient access to data that is distributed across remote data servers in a grid. In this paper, we describe our solution, a framework we call Armada. Armada allows applications to flexibly compose modules to access their data, and to place those modules at appropriate hosts within the grid to reduce network traffic.