Google Earth Demonstration for Supercomputing 2007

@ Booth: NIC - John von Neumann Institute for Computing (Booth #2633) @ Booth: EGEE - Enabling Grids for e-Science (Booth #2523)

The “Grid Interoperation Now” activity of Open Grid Forum (OGF) focuses on interoperation between production grid infrastructures. A sub group of this activity has been focusing on information system interoperability. An attempt was made to translate information from all the existing production grid infrastructures in order to populate a single information resource. The resource chosen was a Berkeley Database Information Index (BDII) and the common format used was the Glue Schema version 1.2. The result is a BDII that contains information from 9 production grid infrastructures (EGEE, OSG, NDGF, Naregi, Teragrid, Pragma, DEISA, NGS, APAC). This information is used to show the location of the computing centres in Google Earth and hence shows the current grid landscape for the production grids. This investigation has demonstrated that it is possible to have a diversity of information systems, however, for interoperability, the information content, and hence schema, must be in agreement. As a result the Glue Schema activity is now an official OGF working group and is defining this common schema for grid computing.

The GIN BDII is an information system end point which contains information about sites participating in the existing production grid infrastructures. It was created by using different adapters and translators to query the native information systems from the different infrastructures and presents the information using a common schema, Glue. This information was used to create a KML file for use with GoogleEarth.

An architecture diagram of the GIN BDII can be found on slide number 19 from a presentation given at CHEP 2007. This presentation also give a good over view of the interoperation problem.

Trivia

• Participating Infrastructures: 8

1. EGEE, 256 Sites, (195 Sites@ SC2006)
2. OSG, 8 Sites, (18 sites@ SC2006)
3. NorduGrid, 37 Sites, ( 19 Sites@ SC2006)
4. Naregi, 1 Site, (5 sites@ SC2006)
5. Teragrid, 12 Site, (13 Sites@ SC2006)
6. Pragma , 17 Sites, (29 sites@ SC2006)
7. DEISA, 12 Deisa (12 sites@ SC2006)
8. NGS, 11 Sites (7 Sites@ SC2006)
9. GridAustralia, 4 Sites
10. BestGrid, 2 Sites

Total Number of Sites: 368 (260 Sites @ SC 2006) Please note that there are a number of duplicates. A site may participate in multiple grid infrastructures or if interoperation activities are successful, the site will be visible in both infrastructures.

Number of Countries: 54

For more information please contact Laurence.Field@cern.ch