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Grid

  1. 1. Grid Computing
  2. 2. Distributed Computing Zoo • Grid Computing • Also called High-Performance Computing • Big clusters, Big data, Big pipes, Big centers • Globus backbone, which now includes Services and Gateways • Decentralized control • Cluster Computing • local interconnect between identical cpu’s • Peer-to-Peer (Napster, Kazaa) • Systems for sharing data without centeral server • Internet Computing • Screensaver cycle scavenging • eg SETI@home, Einstein@home, ClimatePrediction.net, etc • Access Grid • A videoconferencing system • Globus • A popular software package to federate resources into a grid • TeraGrid • A $150M award from NSF to the Supercomputer centers (NCSA, SCSC, PSC, etc etc)
  3. 3. What is the Grid? • The World Wide Web provides seamless access to information that is stored in many millions of different geographical locations • In contrast, the Grid is an emerging infrastructure that provides seamless access to computing power and data storage capacity distributed over the globe.
  4. 4. What is the Grid? • “Grid” was coined by Ian Foster and Carl Kesselman “The Grid: blueprint for a new computing infrastructure”. • Analogy with the electric power grid: plug-in to computing power without worrying where it comes from, like a toaster. • The idea has been around under other names for a while (distributed computing, metacomputing, …). • Technology is in place to realise the dream on a global scale.
  5. 5. Grid projects in the world •DOE Science Grid •NSF National Virtual Observatory •NSF GriPhyN/iVDGL •DOE Particle Physics Data Grid •NSF TeraGrid •DOE Earth Systems Grid •NEESGrid •DOH BIRN •UK e-Science Grid •EUROGRID •DataGrid (CERN, ...) •EuroGrid (Unicore) •DataTag (CERN,…) •GridLab (Cactus Toolkit) •CrossGrid (Infrastructure Components)

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