How To




Effective Area

Global tags[ LiNux]][ SCRAM]]

Use CAF-T2

HLT 2011 Menu Summary

Check Which Tags Are In A CMSSW Release

  • look into /afs/, e.g. /afs/


* from, select the release and the Show All Packages option and then click on the submit button

Check Which Global Tag Was Used To Process A Data File

edmProvDump rfio:rootfile | grep globaltag

Find The Most Up-To-Date JSON file

  • on afs at /afs/
  • on the web here

Query The DBS From lxplus

dbs --search --query "find min(run),max(run),dataset where and dataset=*MuonDPG*"

How to check a trigger path description

Info taken from the following hypernews,

When you open a menu there's a "Summary" tab at the upper right that if you click will try to display only the thresholds/cuts used in the last filter modules in the HLT paths.

and then follow the links to "HTML view of physics algorithms and scales"

How to check when a particular trigger path was prescaled

edmConfigFromDB --runNumber 136132 | hltDumpStream | grep '\<HLT_L1MuOpen\>' | head -n1

How To Resubmit a specific job on CRAB

  • if the status of the jobs in question is "Killed", "Aborted" or "Done" and the "Exit_Code" is not 0, they can be resubmitted immediately with the same executable and the same settings by
    crab -resubmit job-id -continue crab_?_date_time where job-id can be a single crab job-id, a comma separated list of job-id's or a range of job-id's from the status check.

  • To resubmit all "failed" jobs at once (ignoring jobs with "Done" or "Cleared" status)
    crab -resubmit -continue crab_?_date_time

  • IMPORTANT: if the status is "Done" and the "Exit_Code" is not 0, the user has to retrieve the job output before he can resubmit the job

How to emulate HLT trigger results in MC

Castor Commands

Write a CMS Note

Skip The Bad Files In A CMSSW Job

process.source.skipBadFiles = cms.untracked.bool( True )

* How to read events from EDM/ROOT

How To find Prescales

Instructions are at
Access them in the HLT,

From a json file on a specific hlt path

  • -r 147206 -hltpath HLT_Mu9 --nowarning overview
  • -i Cert_132440-147116_7TeV_StreamExpress_Collisions10_JSON.txt -hltpath HLT_Mu9 -o myoutput.csv --nowarning lumibyls

Check Prescales Changes During a Run

Register a Computer at CERN

2012 Dataset evolution

How To Associate SCRAM_ARCH - CMSSW

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Topic revision: r5 - 2014-03-02 - AjayKumar
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