Globally Interconnected Object Databases
The GIOD (Globally Interconnected Object Databases) Project, a joint effort between Caltech and CERN, funded by Hewlett Packard Corporation, has investigated the use of WANdistributed Object Databases and Mass Storage systems for LHC data. A prototype smallscale LHC data analysis center has been con...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.137.9396 2023-05-15T17:53:53+02:00 Globally Interconnected Object Databases Julian J. Bunn Koen Holtman Harvey B. Newman Richard P. Wilkinson The Pennsylvania State University CiteSeerX Archives 2000 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.137.9396 http://cacr.library.caltech.edu/21/01/cacr.183.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.137.9396 http://cacr.library.caltech.edu/21/01/cacr.183.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://cacr.library.caltech.edu/21/01/cacr.183.pdf text 2000 ftciteseerx 2016-01-07T14:47:26Z The GIOD (Globally Interconnected Object Databases) Project, a joint effort between Caltech and CERN, funded by Hewlett Packard Corporation, has investigated the use of WANdistributed Object Databases and Mass Storage systems for LHC data. A prototype smallscale 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/sec database I/O milestone. Keywords: GIOD,ODBMS,WAN,LHC,CMS Text Orca Unknown |
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The GIOD (Globally Interconnected Object Databases) Project, a joint effort between Caltech and CERN, funded by Hewlett Packard Corporation, has investigated the use of WANdistributed Object Databases and Mass Storage systems for LHC data. A prototype smallscale 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/sec database I/O milestone. Keywords: GIOD,ODBMS,WAN,LHC,CMS |
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The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Julian J. Bunn Koen Holtman Harvey B. Newman Richard P. Wilkinson |
spellingShingle |
Julian J. Bunn Koen Holtman Harvey B. Newman Richard P. Wilkinson Globally Interconnected Object Databases |
author_facet |
Julian J. Bunn Koen Holtman Harvey B. Newman Richard P. Wilkinson |
author_sort |
Julian J. Bunn |
title |
Globally Interconnected Object Databases |
title_short |
Globally Interconnected Object Databases |
title_full |
Globally Interconnected Object Databases |
title_fullStr |
Globally Interconnected Object Databases |
title_full_unstemmed |
Globally Interconnected Object Databases |
title_sort |
globally interconnected object databases |
publishDate |
2000 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.137.9396 http://cacr.library.caltech.edu/21/01/cacr.183.pdf |
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http://cacr.library.caltech.edu/21/01/cacr.183.pdf |
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http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.137.9396 http://cacr.library.caltech.edu/21/01/cacr.183.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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