MuonDaqAnalysis < LHCb

LHCb Web>LHCbMuon>MuonDaqAnalysis (2008-06-25, GiacomoGraziani) (raw view)
---+!! <nop> Welcome to the LHCb Muon DAQ analysis page

This page contains an introduction for reading and analyzing Muon real data acquired during
the commissioning phase.

---++++!! [[LHCbOnline][LHCb Online Page]]

%TOC%

---++ Useful links & documentation

---+++ Talks

   * Software week Mar 08 talk [[http://indico.cern.ch/materialDisplay.py?contribId=16&sessionId=6&materialId=slides&confId=25000][A. Satta]]

---+++ Links

   * [[https://twiki.cern.ch/twiki/bin/view/LHCb/LocalData][Writing data at the pit]]

---++ Data location

Data files acquired by the LHCB DAQ are written locally (in the [[http://lhcb-online.web.cern.ch/lhcb-online/environment/step_by_step_lhcb_online_account.htm][online network]]) to the following directory:

/daqarea/lhcb/data/2008/RAW/ _partition_ / _recipe_ / _#runnumber_ 

where
   *  _partition_ is LHCb for global data taking; MUON, MUONC or MUONA for standalone muon daq;
   * _recipe_ is usually PHYSICS

data are automatically migrated to castor (within about one hour) as

/castor/cern.ch/grid/lhcb/data/2008/RAW/ _partition_ / _recipe_ / _#runnumber_ 

Beware that files smaller than a few Mbytes could not be copied to Castor.

Early data from the first semi--manual detector DAQ of December 2007 are available for posterity 
under the local folder  /group/muon/testdata and on castor under /castor/cern.ch/user/g/ggiacomo/testdata

---++ Runs

Details on the DAQ conditions during Commissioning are available on the [[http://lblogbook.cern.ch/][MUON and L0 Trigger electronic logbooks]].
Here is a short summary of the most important runs

| * Run type *          | * Run number * | * Partition * | 
| Tell1 high-rate tests | 24602, 24611   | MUON |
| PDM                   | 24278          | LHCb |
| Cosmics (trigger : MUON M3 or CALO)| 24080, 24109, 24113 | LHCb |
| Cosmics (trigger : muon M3)     | 23872          | MUON |
| Cosmics (trigger : MUON M4-M5 or CALO) | 23837              | LHCb |
| Cosmics (trigger : MUON M4-M5)   | 23606    | LHCb |
| Cosmics (trigger : CALO)   | 23604    | LHCb |
| Noise                 | 22902 | MUONC |
| Cosmics (trigger : CALO)   | 22788    | LHCb |
| Cosmics (trigger : MUON M4-M5 or CALO) | 22688               | LHCb |
| Cosmics (trigger : CALO)   | 22670, 22678, 22684     | LHCb |
| Cosmics (trigger : MUON M4-M5 or CALO)  | 22617             | LHCb |
| PDM                      | 22553                | MUONC |
| PDM                      | 21422                | MUONC |
| Cosmics (trigger : MUON M4-M5) | 21396 | LHCb |
| Cosmics (trigger : MUON M4-M5 or CALO) | 21394, 21395  | LHCb |
| First Cosmic run (trigger : CALO) | 20989  | LHCb |

---++ Tips and Tricks for data analysis

---+++ Environment
you can use lxplus, where the LHCb environment is set up by default, to analyze data from castor. 
This is the recommended way for offline data analysis.

For quick and more online-related jobs, you can also use the machines on the online network:
   * ssh lbgw (only from cern network)
   * import your code using "cvs co" 
   * ssh plus 
   * setup LHCb environment:
      * _tcsh shell:_  source /group/muon/scripts/lhcbsetup.csh
      * _bash shell:_    . /group/muon/scripts/lhcbsetup.sh
   * choose your preferred environment (setenvBrunel, setenvOnline, ...)
   * access the data from the /daqarea

---+++ Data Access

Your job.options file should include the following:
<font size=+2>
<verbatim>
EventPersistencySvc.CnvServices      = {"LHCb::RawDataCnvSvc/RawDataCnvSvc" };
ApplicationMgr.SvcOptMapping    += { "Gaudi::IODataManager/IODataManager" };
#include "$STDOPTS/DstDicts.opts"
EventSelector.Input = {
 "DATA='PFN:rfio:/castor/cern.ch/grid/lhcb/data/2008/RAW/LHCb/PHYSICS/22688/022688_0000011673.raw'SVC='LHCb::MDFSelector'"
}
</verbatim>
</font>
The Muon/MuonOnlineMonitor package provides, in the options directory, two scripts for getting quickly
the list of files related to a given run or a run range:
   * runoptions.pl  for data on the online network
   * runsOnCastor.pl for data on Castor
usage is (default partition is LHCb ; default recipe is PHYSICS):
<font size=+1>
<verbatim>
   ./runsOnCastor.pl [-p partition] [-r recipe] Run
</verbatim>
</font>
to get the file list from the given Run
<font size=+1>
<verbatim>
   ./runsOnCastor.pl [-p partition] [-r recipe] Runmin Runmax
</verbatim>
</font>
to get the file list from the given Run interval.

The output is a file called "dynamicRun.opts" that you can include in your options files  

---++ Running the Muon Monitoring offline
The code that is used for  [[MuonDaqMonitoring][Muon Online data monitoring]] is available in the cvs repository
and can be run offline from your favorite environment (Online, Brunel, Moore, ...), providing an example of analysis. Packages are:
   $ Muon/MuonMonKernel: common tools used by the other packages. This includes an "ad-hoc" fast decoding/reconstruction tool for online monitoring. Note that offline analysis should use the official tools under Muon/MuonDAQ rather than this one;
   $ Muon/MuonMonitor: algorithm for general muon monitoring histograms. The options folder provides some scripts and option files for running the algorithm. Output can be found in the monitor.root file;
   $ Muon/Cosmics: provides a tool for standalone cosmic track reconstruction, using a neural network;
   $ Muon/CosmicMonitor: algorithm for muon monitoring using cosmics;  
   $ Muon/MuonOnlineMonitor: provides scripts, configuration files and utilities for running the online monitoring. The options directory includes the "runGaudi" script for running the previous algorithms offline. Here is a sample session on lxplus:
      * setenvOnline     _(default recommended)_ 
      * getpack Muon/MuonMonKernel head
      * getpack Muon/MuonMonitor head
      * getpack Muon/Cosmics head
      * getpack Muon/MuonCosmicMonitor head
      * getpack Muon/MuonOnlineMonitor head
      * cd Muon/MuonOnlineMonitor/v*/cmt
      * cmt config
      * source setup.csh
      * cmt br make    _(takes some time...)_
      * cd ../options
      * ./runsOnCastor.pl 22688
      * ./runGaudi
you will find the monitoring histograms in the monitor.root file



-- Main.AlessioSarti , Main.GiacomoGraziani - 23 Jun 2008
Topic revision: r6 - 2008-06-25 - GiacomoGraziani
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