The CMS event builder demonstrator based on Myrinet

Author

Antchev, G. ; Cano, E. ; Chatelier, S. ; Cittolin, S. ; Erhan, S. ; Gigi, D. ; Gutleber, J. ; Jacobs, C. ; Meijers, F. ; Orsini, L. ; Pollet, L. ; Racz, A. ; Samyn, D. ; Sinanis, N. ; Sphicas, P.

Author_Institution

CERN, Geneva, Switzerland

Volume

47

Issue

2

fYear

2000

fDate

4/1/2000 12:00:00 AM

Firstpage

293

Lastpage

298

Abstract

The data acquisition system for the CMS experiment at the Large Hadron Collider (LHC) will require a large and high performance event building network. Several switch technologies are currently being evaluated in order to compare different architectures for the event builder. One candidate is Myrinet. This paper describes the demonstrator which has been set up to study a small-scale (8×8) event builder based on a Myrinet switch. Measurements are presented on throughput, overhead and scaling for various traffic conditions. Results are shown on event building with a push architecture

Keywords

data acquisition; high energy physics instrumentation computing; CMS experiment; Myrinet; data acquisition system; event builder; overhead; push architecture; scaling; switch; throughput; Bandwidth; Broadcasting; Buildings; Collision mitigation; Data acquisition; Filters; Jacobian matrices; Routing; Switches; Telecommunication traffic;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.846167

Filename

846167