Result: The GIOD Project : Globally Interconnected Object Databases

Title:
The GIOD Project : Globally Interconnected Object Databases
Authors:
BUNN, Julian J, HOLTMAN, Koen, NEWMAN, Harvey B, WILKINSON, Richard P
Source:
Proceedings of the CHEP 2000 Conference: Computing in High Energy and Nuclear Physics (Padova, Italy, 7-11 February 2000)Computer physics communications. 140(1-2):162-171
Publisher Information:
Amsterdam: Elsevier Science, 2001.
Publication Year:
2001
Physical Description:
print, 6 ref
Original Material:
INIST-CNRS
Subject Terms:
Computer science, Informatique, Theoretical physics, Physique théorique, Sciences exactes et technologie, Exact sciences and technology, Physique, Physics, Generalites, General, Instruments, appareillage, composants et techniques communs à plusieurs branches de la physique et de l'astronomie, Instruments, apparatus, components and techniques common to several branches of physics and astronomy, Informatique en physique expérimentale, Computers in experimental physics, Saisie de données: matériel informatique et logiciel, Data acquisition: hardware and software, Analyse de données: algorithmes et implémentations; gestion de données, Data analysis: algorithms and implementation; data management, Modélisation et simulation par ordinateur, Computer modeling and simulation, Analyse donnée, Data analysis, Base donnée orientée objet, Object-oriented databases, Base donnée répartie, Distributed databases, Contrôle accès, Access control, Etude théorique, Theoretical study, Langage C++, C++ language, Lenguaje C++, Mémoire masse, Mass storage, Memoria masa, Physique haute énergie, High energy physics, Reconstruction, Reconstrucción, Réseau longue distance, Wide area networks, GIOD, Globally Interconnected Object Databases
Document Type:
Conference Conference Paper
File Description:
text
Language:
English
Author Affiliations:
California Institute of Technology, Pasadena, CA, United States
ISSN:
0010-4655
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=1122654
Rights:
Copyright 2001 INIST-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Metrology
Accession Number:
edscal.1122654
Database:
PASCAL Archive

Further Information

The GIOD (Globally Interconnected Object Databases) Project, a joint effort between Caltech and CERN, funded by Hewlett Packard Corporation, has investigated the use of WAN-distributed Object Databases and Mass Storage systems for LHC data. A prototype small-scale LHC data analysis center has been constructed using computing resources at Caltechs Centre for Advanced Computing Research (CACR). These resources include a 256 CPU HP Exemplar of ∼4600 SPECfp95, a 600 TByte High Performance Storage System (HPSS), and local/wide area links based on OC3 ATM. Using the Exemplar, a large number of fully simulated CMS events were produced, and used to populate an object database with a complete schema for raw, reconstructed and analysis objects. The reconstruction software used for this task was based on early codes developed in preparation for the current CMS reconstruction program, ORCA. Simple analysis software was then developed in Java, and integrated with SLACs Java Analysis Studio tool. An event viewer was constructed with the Java 3D API. Using this suite of software, tests were made in collaboration with researchers at FNAL and SDSC, that focused on distributed access to the database by numerous clients, and measurements of peak bandwidths were made and interpreted. In this paper, some significant findings from the GIOD Project are presented, such as the achievement of the CMS experiment's 100 MB/s database I/O milestone.