Vertical Monitoring: a data acquisition application for the BaBar experiment

Author

Perazzo, Amedeo ; O´Grady, Christopher ; Swain, James

Author_Institution

Lawrence Berkeley Lab., Berkeley, CA, USA

Volume

49

Issue

2

fYear

2002

fDate

4/1/2002 12:00:00 AM

Firstpage

437

Lastpage

442

Abstract

Online Dataflow (ODF) handles data acquisition and processing from the BaBar detector front end electronics through the delivery of complete events to a farm of UNIX nodes. To understand the system, a monitor application, Vertical Monitoring (VMON), has been developed. VMON multicasts UDP packets with performance information from each CPU of the Dataflow system. This information is currently received by a single client on one UNIX node and archived. A ROOT-based GUI is provided on the UNIX application side to control VMON, display the performance of the ODF system in real time and retrieve archived data. VMON is currently used successfully in BaBar to provide diagnostics in the dataflow system and help with projections of future performance

Keywords

Unix; data acquisition; high energy physics instrumentation computing; BaBar detector; UDP packets; UNIX; Vertical Monitoring; data acquisition; Calibration; Control systems; Data acquisition; Detectors; Event detection; Filters; Monitoring; Optical fiber cables; Read only memory; Real time systems;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/TNS.2002.1003768

Filename

1003768