Manchester ATLAS Group

Introduction

This page is used to store information relevant to the Manchester ATLAS group.

Documentation

ATLAS Experiment:

• ATLAS Collaboration, The ATLAS Experiment at the CERN Large Hadron Collider , 2008 JINST 3 S08003.
  
  • Warning: Large file!
  • Inner Detector (ID), e.g. 4.1 (4.2, 4.3 ), 10.2.
    
  • Trigger, e.g. 8.1, 8.2 (especially first section), 8.3
• ATLAS Collaboration, Expected Performance of the ATLAS Experiment - Detector, Trigger and Physics , CERN-OPEN-2008-020, arXiv:0901.0512v2 [hep-ex].
  • Warning: Large file!
  • This is the so-called CSC book

ATLAS High Level Trigger (HLT = L2 + EF):

• The High-Level-Trigger Steering of the ATLAS experiment , IEEE NPSS 2007, com-daq2007-020
• The ATLAS High Level Trigger Steering , CHEP07, daq-conf-2007-026
• Chapter, Trigger - HLT Track Reconstruction Performance , in the CSC book above.

ATLAS Tracking:

• Concepts, Design and Implementation of the ATLAS new Tracking (NEWT) , ATL-SOFT-PUB-2007-007, December 2007.
• Single Track Performance of the Inner Detector New Track Reconstruction (NEWT) , ATL-INDET-PUB-2008-002, March 2007.

Misc:

• Glossary A useful glossary of particle physics terms.

Computing

In this section there are various useful notes on ATLAS computing at Manchester.

• ATLAS CVS web viewer
• LXR, Searching the ATLAS SW repository.
• Manchester Tier 2 twiki
• Atlas UK Computing Software Official Page
• Manchester Elog
• Computing resources at CERN

ATLAS Software on Linux8

Various ATLAS release are installed on the linux8 cluster at Manchester, for use instructions, see ManAthenaInstallationsSLC5.

CERN cvs & svn Access on Linux8

General instructions for cern cvs access are here and for svn access are here. On linux8 you can use kerberos authentication to gain access to cvs or svn via ssh, simply do the following, replacing username with your username on lxplus:

kinit --no-afslog username@CERN.CH

The standard checkout commands should now work without a prompt for your password. Note that if your username on the linux8 cluster is different to your cern username, you will have to change the SVNROOT variable:

export SVNROOT="svn+ssh://username@svn.cern.ch/reps/atlasoff"

where username should be your cern username. This needs to be done after setting up the atlas release (since setting up the release changes this variable).

Manchester has a group area within the ATLAS svn repository - you can see it's contents here.

If you need to access the manchester cvs repository at cern you need to do:

export CVSROOT=:gserver:isscvs.cern.ch:/local/reps/atman

If your cern username is different to you linux8 one, then you will need:

export CVSROOT=:gserver:username@isscvs.cern.ch:/local/reps/atman

Ganga & dq2

The latest version of ganga is installed on all the linux8 nodes (in /opt/ganga/install) & should already be in your PATH. To enable the atlas specific extensions, you just need to do:

export GANGA_CONFIG_PATH=/afs/hep.man.ac.uk/g/atlas/GangaConfig/GangaAtlas-v5.ini:GangaAtlas/Atlas.ini

before running ganga. It is also possible to use the cern installation, to set it up do:

source /afs/cern.ch/sw/ganga/install/etc/setup-atlas.sh

To use dq2 it is usually best to use the up-to-date installation at cern. To set up dq2 do:

source /afs/cern.ch/atlas/offline/external/GRID/ddm/DQ2Clients/setup.sh

It is best to tell dq2 that you are in the UK, not cern, by doing:

export DQ2_LOCAL_SITE_ID=UKI-NORTHGRID-MAN-HEP_LOCALGROUPDISK

Useful Utilities

See this page for a list of useful bits of software & scripts.

Mailing lists

Some useful mailing lists:

• Atlas distributed analysis help - hn-atlas-dist-analysis-help@cernNOSPAMPLEASE.ch
• Atlas UK computing users - atlas-uk-comp-users@cernNOSPAMPLEASE.ch
• UK grid users - GRIDPP-USERS@JISCMAILNOSPAMPLEASE.AC.UK
• UK data replication requests - atlas-uk-data-requests@cernNOSPAMPLEASE.ch

Event Filter Tracking

Links

ATLAS Twikis:

• ID HLT (L2 + EF) Twiki
• ID EF Tracking Algorithms
• HLT Tracking Data Quality Monitoring

ATLAS Meetings:

• Inner Detector Trigger
• Inner Detector Software Weekly

Activity Sub-Pages

• EFID Validation Page
• EFID Data Studies
• MC Performance Page
• Cosmics Analysis
• Muon EF Cosmic Analysis
• Muon EF Timing Studies
• Muon EF Early Data Studies
• ManMuonEFCosmicsUnPro
• MuonEFTimeOutUnPro
• Muon EF Isolation Commissioning

Physics Analysis

• ATLAS UK analyis groups
• The Sframe Analysis package home page
• ManPhysBoostedTops
• ManTree
• ManTreeOld
• SFrameD3PD

-- MarkOwen - 21 Sep 2009 -- SteveMarsden - 03-Jul-2012