LHCb Software At Nikhef: Prepare for Workshop 22-24 June 2009

Your first time to run over a MicroDST at Nikhef

Prepare ssh on your Nikhef account

Follow these instructions: Configuring SSH access from Linux/Unix

Get software packages

mkdir cmtuser
cd cmtuser
setenv MYSITEROOT /project/bfys/lhcb/sw
source $MYSITEROOT/lhcb/LBSCRIPTS/prod/InstallArea/scripts/LbLogin.csh --quiet --mysiteroot $MYSITEROOT
SetupProject --build-env DaVinci v23r0p1
getpack Phys/DaVinci v23r0p1
cd ~/cmtuser/DaVinci_v23r0p1/Phys/DaVinci/cmt/
make

cd ~/cmtuser/DaVinci_v23r0p1/
getpack Ex/MicroDSTExample v2r3
cd ~/cmtuser/DaVinci_v23r0p1/Ex/MicroDSTExample/cmt
cvs update -A
cmt br cmt make

Loop over events

cd /data/bfys/h71/Workshop/
SetupProject DaVinci v23r0p1
python -i BfysWorkshopMicroDSTReader_1.1.py --input SeqDC06selBs2JpsiPhiWithMC_50.0_Kevt_NoPVReFit.dst

Plot

>>> massPlots.plots[443].Draw()
>>> massPlots.plots[531].Draw()
>>> massResPlots.plots[531].Draw()
>>> propTimePlots.plots[531].Draw()

Install a Virtual Machine on laptop (windows): CernVM

See talk by Pere Mato, slide 14: 17 March 2009

CernVM beginner's guide: CernVM beginner's guide

1) Download VMware player under windows

Download from http://www.vmware.com/download/player/
Put CernVM in fixed place. For example C:\Program Files\CernVM
Start vmplayer from desktop
Open CernVM from C:\Program Files\CernVM
Open in browser: http://192.168.204.128:8004/
                 (your number might be different!)
Create account. For example: use lxplus username and password
Virtual organization: lhcb
Change memory allocation in vmware player
  -> troubleshoot
     -> change memory allocation
         -> 1024 GB

2) Start CernVM

Follow CernVM beginner's guide step by step: CernVM beginner's guide

3) Start Exceed + SSH

Start exceed
start ssh
connect to vm with ssh to 192.168.204.128
     (Your number might be different!)
     (fink tunnel x11 connections in ssh!)

4) Configure CernVM

(once for configuring cernvm:)
back to instructions afs
sudo conary update openafs=1.4.8-1-1
sudo conary update openafs-client=1.4.8-1-1
sudo conary update openafs-kernel=1.4.8-1-1
sudo /etc/init.d/afs start

5) CernVM session on ssh

Never do: ls /opt/ !! (It could start caching all atlas software...)

kinit user@CERN.CH (capitals!)
cd /opt/lhcb
source /opt/lhcb/LbLogin.cshhcb/lhcb/GAUDI/GAUDI_v21r0
python $GAUDIEXAMPLESROOT/python/HistoEx.py
SetupProject Bender v12r0
cd $BENDEREXAMPLEROOT/python/BenderExample/
./Phi.py

''' 6) Create shared data folder on your laptop '''

<pre>
Make folder C:\Data
Change properties of C:\Data
   -> sharing
     -> network sharing without wizard
       V share
          name: Data
       V allow 

Edit configuration file (in C:\Program Files\CernVM )

 sharedFolder.maxNum = "1"

 sharedFolder0.present = "TRUE"
 sharedFolder0.enabled = "TRUE" 
 sharedFolder0.readAccess = "TRUE"
 sharedFolder0.writeAccess = "TRUE"
 sharedFolder0.hostPath = "C:\Data"
 sharedFolder0.guestName = "data"
 sharedFolder0.expiration = "session"

 usb.autoConnect.device1 = ""

In VMware:
  -> Share folders
     -> o always enabled

sudo ln -s /usr/sbin/mount.vmhgfs /sbin