Contents
Index
Physics Computing
- The CERN openlab for DataGrid applications
- IBM Joins CERN openlab for DataGrid applications
- CERN Breaks Gigabyte/s Storage-To-Tape Barrier With StorageTek
- European DataGrid Getting Ready for Release 2.0
- Hardware Address Registration Requirement for Portables
- Support Email Addresses: Mailing Lists or Problem Tracking?
Editorial Information
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European DataGrid Getting Ready for Release 2.0
DataGrid Project Office , CERN
After the 2nd EU review, held at CERN on February, (see "European DataGrid: a Successful 2nd EU Review" in the first 2003 CNL issue) more experiments, in particular ALICE and LHCb, joined the effort to evaluate the 1.4 release of the EDG software. The results, along with the ones from CMS and ATLAS, are available in a public project document, where the main lessons learned from these evaluations are summarized, together with recommendations for future developments:
https://edms.cern.ch/file/375586/1.3/wp8-D8.3-0119-3-1.pdf
The team is now getting ready for the EDG 2.0 release, to be deployed on the application testbed during June 2003. EDG 2.0 is a major milestone for the HEP community, since it represents the synchronization point with LCG and it is an important element for the LCG-1 release foreseen for July 2003. Moreover, it will provide the opportunity to synchronize with US projects (via VDT) and NorduGrid in terms of a common version of Globus and Condor and on the use of the GLUE schema and compatible information providers.
The major highlights of the release include:
- migration to Globus 2.2 delivered via VDT (bugs correction and compatibility with other grid projects)
- port to linux RH 7.3 (with gcc.2.95)
- new data management tools (EDG implementation of RLS and EDG replica manager) to overcome scalability issues with basic replica catalog
- inter-operability with US grids via use of GLUE schema as a basis for information sharing
- new information service (R-GMA) to overcome scalability & performance issues with MDS
- improved fabric management & network monitoring tools
- more scalable and reliable resource brokering and job submission chain (includes new version of Condor-G)
- new storage element service providing basic, consistent interface to disk and mass storage systems
A number of the software components developed by EDG for release 2.0 have been adopted for the initial LCG-1 grid facility for the LHC experiments. They include the Replica Location Service (RLS), the Resource Broker (RB), the data management tools and the gateway between the grid and the local fabric. Further modules such as R-GMA and VOMS (backward compatible fine-grained authentication mechanism) and extensions to RLS will be also used by LCG later in the year.
More aspects of the developments of EDG dedicated to HEP are illustrated in the presentations made by several members of the collaboration at CHEP (Computing in High Energy Physics Conference) in San Diego (USA). A collection of the DataGrid papers presented is offered on the web at:
http://agenda.cern.ch/fullAgenda.php?ida=a022246
But release 2.0 is not only for physics, and representatives of the HEP experiments have been working together with representatives from bio-informatics and earth observation, the other scientific fields supported by DataGrid, on the definition of common high-level grid services.
A more general picture of the overall status of EDG and its latest developments has been given during the "Sixth European DataGrid Project Conference", held in Barcelona the 12-15 May 2003. More then 160 people attended, representing all collaborating institutions, industrial partners and sister projects. The plenary presentations are available at:
http://edms.cern.ch/document/384120
For more information on the DataGRID project see: http://cern.ch/eu-datagrid/