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DOT: Distributed Optical Testbed

The .DOT project aims to create a distributed optical testbed for large-scale applications. With Linux clusters at 7 sites, the project focuses on dynamic load-balancing, performance monitoring, data management, and real-time distributed applications.

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DOT: Distributed Optical Testbed

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  1. DOT: Distributed Optical Testbed Valerie Taylor, Joe Mambretti, Alok Choudhary, Peter Dinda Northwestern University Charlie Catlett, Bill Nickless, Linda Winkler Argonne National Lab Ian Foster University of Chicago Tom DeFanti, Maxine Brown, Jason Leigh University of llinois at Chicago Xian-He Sun Illinois Institute of Technology Robert Pennington NCSA

  2. DOT Sites NU-C NU-E UIC Star Tap IIT ANL Uof C NCSA/UIUC I-WIRE OMNI EVL Meeting

  3. Site Details • Consists of linux clusters at 7 sites • NU-E: 7 data nodes and 7 compute nodes • NU-C: 7 data nodes and 7 compute nodes • IIT: 11 data nodes and 3 compute nodes • UofC: 14 data nodes • UIC: donated cluster • ANL: 14 data nodes • NCSA: donated 8-node cluster EVL Meeting

  4. Issues • Have one administrative domain for DOT • Consider Virtual Organization for extending beyond DOT • One scheduler • Get a distributed system by default • Consistent software • Based upon the Globus toolkit EVL Meeting

  5. Proposed Research Activities • Dynamic Load-balancing (Taylor) • Performance Monitoring & Prediction (Sun, Dinda, Taylor) • Data management (Foster, Choudhary) • Driven by large-scale applications • ENZO --- cosmology application • Cactus --- solve Einstein’s equations • AudioVoice --- virtualized distributed app. with real-time deadlines EVL Meeting

  6. Status • Getting quotes for clusters • Provisioning issues • Setting policies • User accounts • Software installation • Collaborations with other projects • Making contacts for an international testbed EVL Meeting

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