1 / 17

The Access Grid

The Access Grid. An Introduction. Rick Stevens, Terry Disz, Lisa Childers, Bob Olson Argonne National Laboratory www.mcs.anl.gov/fl/accessgrid (fl-info@mcs.anl.gov). Origins of the Access Grid. Applications. Apps Tools. Middleware. Networking. Resources. Evolution of the Grid Concept.

lavonn
Download Presentation

The Access Grid

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. The Access Grid An Introduction Rick Stevens, Terry Disz, Lisa Childers, Bob Olson Argonne National Laboratory www.mcs.anl.gov/fl/accessgrid (fl-info@mcs.anl.gov)

  2. Origins of the Access Grid

  3. Applications Apps Tools Middleware Networking Resources Evolution of the Grid Concept • Metacomputing: late 80s • Focus on distributed computation • Gigabit testbeds: early 90s • Research, primarily on networking • I-WAY: 1995 • Demonstration of application feasibility • PACIs (National Technology Grid): 1997 • NASA Information Power Grid: 1999 • ASCI DISCOM: 1999 • DOE Science Grid: 2001 • Commercial Startups

  4. Related Work • Berkeley and LBNL’s Mbone Tools (Jacobson et al.) • Xerox PARC MOO and Jupiter Projects (Curtis, et al.) • Argonne/NEU’s Labspace Project (Evard/Stevens et al.) • EVL’s CAVERsoft (DeFanti, Leigh, et al.) • ANL’s CAVEcomm and ManyWorlds (Stevens et al.) • ANL and ISI Globus Project (Foster, Kesselman et al.) • UNC’s Office of the Future (Fuchs et al.) • DOE’s Collaboratory Pilots (Zalusec et al.)

  5. Some Questions We are Interested In • What kinds of future collaboration environments are possible? • How might teleimmersion enhance scientific collaborations? • What is the value of persistence and spatial metaphors in collaboration and virtual environments? • How can we cost-effectively improve group oriented collaboration environments ? • What is needed from networking and middleware infrastructure to effectively support wide area collaboration and distributed visualization ? • What are good software architectures to enable collaborative work systems?

  6. Our Approach • Attack Research Questions in the context of real world experience • Build Working Infrastructure as well as Prototype Software • Involve multiple groups in deployment, use and research • Participate (lead) in directions for new uses and applications • Release software early and often (use open source model) • Contribute to the Community Code base

  7. An Overview of the Access Grid

  8. Topology

  9. Physical Node Design Presenter mic • Spaces for small groups • Wide field of view • Comfortable • Persistent connection Presenter camera Ambient mic (tabletop) Audience camera

  10. Audio • Hands free • No click to talk • No searching for microphones • Never have to think about microphones • Interactive • Interrupt other speakers • Multiple conversations at the same time • Full duplex • Clear • No background noise • Rich-sounding speech • No feedback • No echo

  11. Video • Scale of imagery life-sized • Highest quality, but affordable • Multiple video streams • Presenter close-up • Audience view • Audience close-up • Display wall

  12. Data • Shared • Powerpoint • VNC • Visualization • Archived • Voyager

  13. Network • Hardening multicast infrastructure • http://beaconserver.accessgrid.org:9999/ • Large-scale networking testbed • Higher bandwidth • QoS • Networking people active members of the AG community

  14. The Muds • Two muds are used in the AG community • Access Grid Hangout Room • Character generation is controlled • Characters reside there permenantly • Long-term social relationships have developed • Access Grid Venue • Character generation is automatic • Characters come and go • Usage is event-driven

  15. Virtual Collaboration Spaces Virtual Venue • A persistent location on the grid • Not a physical space • A dimension in which several physical spaces can be co-located • A place that can be entered and exited • Supports multiple interaction modalities • Text, audio, video graphics, animation, VR • A scoping mechanism to support multiple concurrent meetings • A resource that can be reserved

  16. The Workspace Docking Concept Private Workspaces - Docked into the Group Workspace

  17. Access Grid Project Goals • Enable Group-to-Group Interaction and Collaboration • Connecting People and Teams via the Grid • Improve the User Experience: Go Beyond Teleconferencing • Provide a Sense of Presence • Support Natural Interaction Modalities • Use Quality but Affordable Digital IP Based Audio/video • Leverage IP Open Source Tools • Enable Complex Multisite Visual and Collaborative Experiences • Integrate With High-end Visualization Environments • ActiveMural, Powerwall, CAVE Family, Workbenches • Build on Integrated Grid Services Architecture • Develop New Tools Specifically Support Group Collaboration

More Related