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Posted: | Dec 3, 2003 |
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Updated: | Dec 3, 2003 |
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US CMS installed Storage Element on Grid2003 and Interoperates with LCG at CERN
The Storage Element (SE) has a Disk Management system, dCache, developed as a joint project with DESY and FNAL, and Storage Resource Manager (SRM) as the common interface. dCache was initially designed as a front end to tape systems. The SRM interface is becoming the standard storage interface protocol. Applications can reserve space for a period of time, ensuring that space will be available as the application runs. Worker nodes inside a NAT or with no external network connection at all can trigger data be replicated to the storage element, and then access the data through the LAN. CMS has demonstrated interoperability between CERN and FNAL, through the SRM interface data was transfered from tape at CERN to tape at FNAL. The storage element functionality is expected to be deployed in the LCG-2 release. We expect CERN demonstrations at the RSIS conference to show data moving between storage elements.
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Posted: | Nov 26, 2003 |
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Updated: | Nov 26, 2003 |
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Virtual Data on Grid2003
Applications using the GriPhyN virtual data system deployed and running production jobs on Grid2003 resources. Five out of the seven inaugural of the scientific application were using Chimera, Pegasus or both.
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Posted: | Nov 26, 2003 |
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Updated: | Nov 26, 2003 |
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QuarkNet Using Virtual Data In Education
QuarkNet brings high school students and teachers to the frontier of 21st century research that seeks to resolve some of the mysteries about the stucture of matter and the fundamental forces of nature.
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Posted: | Jul 18, 2003 |
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Updated: | Dec 9, 2003 |
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The GriPhyN website 3.0
A new version of the GriPhyN website is now available. This version adds several new features including a participants tools which provides collaboration members with access to personnel information including phone number, Institutional affiliation, web pages etc. It also features a much improved administrator interface where admin functions are integrated directly into the regular display pages. In addition the core software source was greatly streamlined by eliminating most of the source redundancy between its sister iVDGL site.
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Posted: | Jul 18, 2003 |
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Updated: | Nov 26, 2003 |
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The 2002-2003 GriPhyN anual Report
This document summarizes GriPhyN project status and progress for the period July 2002 through June 2003. It covers research, development, science application, education, and outreach activities. The document (GriPhyN 2003-22) is available from our document server.
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Posted: | Nov 30, 2002 |
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Updated: | Nov 30, 2002 |
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Joint GriPhyN/iVDGL/PPDG (Trillium) Technical Planning Meeting
A Joint collaboration meeting will be held in Los Angeles beging December 1
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Posted: | Aug 14, 2002 |
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Updated: | Aug 14, 2002 |
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EU Citizens: Paid CS Fellowships for iVDGL
The UK e-Science Programme is funding 6
Fellowships for EU citizens with Masters in Computer Science to work at US iVDGL institutions for 2 years. Competive salary plus travel costs provided.
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Posted: | Aug 9, 2002 |
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Updated: | Aug 9, 2002 |
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Three iVDGL positions at University of Florida
The University of Florida has three iVDGL positions open, two onsite and one offsite in Chicago. Further information can be found in the advertisement.
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Posted: | Jun 25, 2002 |
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Updated: | Aug 14, 2002 |
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Replacment of GriPhyN website
The old GriPhyN site will be replaced on Wednesday June 25 2002. The move will take the site down for a good part of the day as it requires a set up of a new server.
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Posted: | Jun 3, 2002 |
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Updated: | Jul 30, 2002 |
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Chimera: A Virtual Data System for Representing, Querying, and Automating Data Derivation
Much scientific data is not obtained from measurements but rather derived from other data by the application of computational procedures. We hypothesize that explicit representation of these procedures can enable documentation of data provenance, discovery of available methods, and on-demand data generation (so-called "virtual data"). To explore this idea, we have developed the Chimera virtual data system, which combines a virtual data catalog, for representing data derivation procedures and derived datta, with a virtual data language interpreter that translates user requests into data definition and query operations on the database. We couple the Chimera system with distributed "Data Grid" services to enable on-demand execution of computation schedules constructed from database queries. We have applied this system to two challenge problems, the reconstruction of simulated collision event data from a high-energy physics experiment, and the search of digital sky survey data for galactic clusters, with promising results
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