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Network based on statistical multiplexing for event selection and event builder systems in high energy physics experiments; Reseau a multiplexage statistique pour les systemes de selection et de reconstruction d'evenements dans les experiences de physique des hautes energies

Abstract

Systems for on-line event selection in future high energy physics experiments will use advanced distributed computing techniques and will need high speed networks. After a brief description of projects at the Large Hadron Collider, the architectures initially proposed for the Trigger and Data AcQuisition (TD/DAQ) systems of ATLAS and CMS experiments are presented and analyzed. A new architecture for the ATLAS T/DAQ is introduced. Candidate network technologies for this system are described. This thesis focuses on ATM. A variety of network structures and topologies suited to partial and full event building are investigated. The need for efficient networking is shown. Optimization techniques for high speed messaging and their implementation on ATM components are described. Small scale demonstrator systems consisting of up to 48 computers ({approx}1:20 of the final level 2 trigger) connected via ATM are described. Performance results are presented. Extrapolation of measurements and evaluation of needs lead to a proposal of implementation for the main network of the ATLAS T/DAQ system. (author)
Authors:
Publication Date:
Mar 01, 2000
Product Type:
Thesis/Dissertation
Report Number:
CEA-DAPNIA-SEI-00-01-T
Reference Number:
EDB-01:097890
Resource Relation:
Other Information: TH: These sciences; 11 refs; PBD: Mar 2000
Subject:
43 PARTICLE ACCELERATORS; ACCELERATOR FACILITIES; CERN LHC; COMPUTER ARCHITECTURE; DATA ACQUISITION; DATA ACQUISITION SYSTEMS; DATA TRANSMISSION; DATA TRANSMISSION SYSTEMS; FOUR-PI DETECTORS; MULTIPLEXERS; OPTIMIZATION; PERFORMANCE TESTING; REAL TIME SYSTEMS; RECORDING SYSTEMS; SPECIFICATIONS; TRIGGER CIRCUITS
OSTI ID:
20200785
Research Organizations:
CEA/Saclay, Dept. d'Astrophysique, de la Physique des Particules, de la Physique Nucleaire et de l'Instrumentation Associee (DAPNIA), 91 - Gif-sur-Yvette (France); Paris-11 Univ., 91 - Orsay (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
TRN: FR0106316051457
Availability:
Available from INIS in electronic form
Submitting Site:
FRN
Size:
196 pages
Announcement Date:

Citation Formats

Calvet, D. Network based on statistical multiplexing for event selection and event builder systems in high energy physics experiments; Reseau a multiplexage statistique pour les systemes de selection et de reconstruction d'evenements dans les experiences de physique des hautes energies. France: N. p., 2000. Web.
Calvet, D. Network based on statistical multiplexing for event selection and event builder systems in high energy physics experiments; Reseau a multiplexage statistique pour les systemes de selection et de reconstruction d'evenements dans les experiences de physique des hautes energies. France.
Calvet, D. 2000. "Network based on statistical multiplexing for event selection and event builder systems in high energy physics experiments; Reseau a multiplexage statistique pour les systemes de selection et de reconstruction d'evenements dans les experiences de physique des hautes energies." France.
@misc{etde_20200785,
title = {Network based on statistical multiplexing for event selection and event builder systems in high energy physics experiments; Reseau a multiplexage statistique pour les systemes de selection et de reconstruction d'evenements dans les experiences de physique des hautes energies}
author = {Calvet, D}
abstractNote = {Systems for on-line event selection in future high energy physics experiments will use advanced distributed computing techniques and will need high speed networks. After a brief description of projects at the Large Hadron Collider, the architectures initially proposed for the Trigger and Data AcQuisition (TD/DAQ) systems of ATLAS and CMS experiments are presented and analyzed. A new architecture for the ATLAS T/DAQ is introduced. Candidate network technologies for this system are described. This thesis focuses on ATM. A variety of network structures and topologies suited to partial and full event building are investigated. The need for efficient networking is shown. Optimization techniques for high speed messaging and their implementation on ATM components are described. Small scale demonstrator systems consisting of up to 48 computers ({approx}1:20 of the final level 2 trigger) connected via ATM are described. Performance results are presented. Extrapolation of measurements and evaluation of needs lead to a proposal of implementation for the main network of the ATLAS T/DAQ system. (author)}
place = {France}
year = {2000}
month = {Mar}
}