Beam Spot Monitoring

Introduction

This twiki describes the ongoing development of implementing beam spot monitoring to Online/Offline DQM and how to use it.

How to use it

cmsrel CMSSW_2_2_5
cd CMSSW_2_2_5/src
cmsenv
cmscvsroot CMSSW
cvs co -d UserCode/BeamSpotMonitoring UserCode/Jeng/BeamSpotMonitoring
scramv1 b
cd UserCode/BeamSpotMonitoring/test/

2) Start DQM Gui Server:

• To test the codes with DQM gui. You have to install DQMGui server on a local machine first. You can follow the instruction under the section of "Specific details" in this page: https://twiki.cern.ch/twiki/bin/view/CMS/DQMTest

• Follow the instruction under the section of "Starting the GUI server"
• Remember to stop GUI server and collector when you are done with the test. See "Stopping the GUI server and the collector"

3) Edit dqmStandalone_cfg.py (or dqmReadFromRAW_cfg), change <DQM Gui Server Host> to the machine that runs gui service

process.ep = cms.EndPath(process.outP)
process.p = cms.Path(process.dqmSource+process.dqmClient+process.dqmEnv+process.dqmSaver)

process.DQMStore.verbose = 0
process.DQMStore.collateHistograms = False

process.DQM.collectorHost = "<DQM Gui Server Host>"
process.DQM.collectorPort = 9190

process.dqmSaver.convention = 'Online'
process.dqmSaver.dirName = '/tmp'
process.dqmSaver.producer = 'DQM'

process.dqmEnv.subSystemFolder = 'BeamSpotMonitor'

4) Run:

cmsRun dqmStandalone_cfg.py

5) Open web browser to check histograms:

http://<DQM Gui Server Host>:8888/dqm/devtest

Histograms

TBD.

Plan

TBD.

-- GengyuanJeng - 24 Mar 2009