CERN Accelerating science

LHCb Note
Report number	LHCb-2004-099 ; CERN-LHCb-2004-099
Title	The Task Manager for the LHCb On-Line Farm
Author(s)	Bonifazi, F ; Bortolotti, D ; Carbone, A ; Galli, D ; Gregori, D ; Marconi, U ; Peco, G ; Vagnoni, V
Note	revised version submitted on 2005-08-23 13:45:30
Submitted by	[email protected] on 24 Nov 2004
Subject category	Detectors and Experimental Techniques
Note type	DAQ and Trigger
Accelerator/Facility, Experiment	CERN LHC ; LHCb
Abstract	The Task Manager is a utility to start, stop and list processes on the on-line farm. Each process started by the Task Manager has a string environment variable set, named UTGID (User defined unique Thread Group Identifier) which allows to identify the process. The Task Manager uses the UTGID to list the running processes and to identify the processes to be stopped. It has also the ability to start a process using a particular user name and to set the scheduler type and the priority for the process itself. The Task Manager package includes a Linux DIM server (tmSrv), four Linux command line DIM clients (tmStart, tmLs, tmKill and tmStop) and a JCOP (Joint Control Project) PVSS client.
Copyright/License	Preprint: (License: CC-BY-4.0)

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