Dream Data Analysis

Run information


Run numbers

  • 2009 : from 0067 to 1543
  • 2010 Jun: from 1554 to 2875
  • 2010 Oct: from 3048 to 4303
  • 2011 Jun: from 4335 to 4693
  • 2011 Jul: from 4685 to .... run list file RunList.pdf

Ntuple Structure:

Data Storage

NFS Mount

* Paranters in /etc/fstab for NFS mount of dreamix2:

dreamix2.cern.ch:/nfs/data      /mnt/dreamix2   nfs  rw,noatime,exec,dev,suid,bg,soft,nolock,nfsvers=3,rsize=1048576,wsize=1048576,timeo=20,retrans=10 0 0


  • The storage h/w is pcdream:/mnt/storage
    • It is a 3 TB external disk connected to pcdreamdaq2
  • The storage element at TTU
    • Used to mirror, via GlobusOnline, the pcdream:/mnt/storage/ disk
    • ~Daily TTU mirror procedure: Note: REQUIRES the TTU endpoint to be activated by Michele, Sehwook or Alan by grid proxy ahead of time to work
      • Login to the dreamtest account on pcdreamdaq2, or to any other account that has ssh keys stored in the Globus dreamdaq identity store
      • Execute: ssh -t dreamdaq@cliNOSPAMPLEASE.globusonline.org scp -r -s 0 -v pcdreamdaq2personal:storage/ TTU-Sigmorgh-DREAM:/lustre/hep/osg/dream/2015/
    • The script ~/bin/ttuls from the dreamtest directory (on pcdreamdaq2) lists files hosted in the storage element at TTU. The bin area is in the path for the dreamtext account, so the command ttuls should work without prefix.
      e.g.: ~ttuls data or ttuls data/datafile_run100*.dat for a limited range, etc.
    • How to retrieve data by anyone in DREAM from the storage element at TTU: .see GridHelp / GridSetup / GlobusOnline / DataTransfer pages
  • Where are the data files?

    1. In pcdreamdaq2:~dreamtest/storage/
    2. In a disk at TTU. Use the ttuls data script to lists them (How to copy ntuple on your PC)

    Where are the pedestal files?

    1. In pcdream:/mnt/storage/pedestal
    2. In a disk at TTU. Use the ttuls pedestal script to lists them (How to copy ntuple on your PC)

    Where are the ntuple files?

    1. In pcdreamdaq2:/mnt/storage/ntuple
    2. In a disk at TTU. Use the ttuls ntuple script to lists them (How to copy ntuple on your PC)

    [pcdream] /home/dreamtest/working/ntuple >              DRS 32 channels
    [pcdream] /home/dreamtest/working/ntuple/silvia >     DRS read with 16 channels

    Example macros

    A few example macro to analyze the DREAM ntuples.

    Useful information to do analysis:

    AlanSill - 2015-11-01

    Topic attachments
    I Attachment History Action Size Date WhoSorted ascending Comment
    PDFpdf LOG_JULY_2011_1part.pdf r1 manage 14266.0 K 2011-11-04 - 01:05 GabriellaGaudio  
    PDFpdf RunList.pdf r1 manage 68.0 K 2011-11-04 - 01:09 GabriellaGaudio  
    PDFpdf logbook_July_2011_part2.pdf r1 manage 8656.3 K 2011-11-04 - 01:07 GabriellaGaudio  
    Edit | Attach | Watch | Print version | History: r7 < r6 < r5 < r4 < r3 | Backlinks | Raw View | WYSIWYG | More topic actions
    Topic revision: r7 - 2015-11-02 - AlanSill
      • Cern Search Icon Cern Search
      • TWiki Search Icon TWiki Search
      • Google Search Icon Google Search

      DREAM All webs login

    This site is powered by the TWiki collaboration platform Powered by PerlCopyright & 2008-2023 by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
    or Ideas, requests, problems regarding TWiki? use Discourse or Send feedback