====== CMSSW Setup ======
====== Prepare the Environment ======
===== Create cmssoft User =====
On the head node, create user "cmssoft" which is used to install cmssw. Then update the users to the cluster.
<xterm2 root>
[root@grow-prod ~]# useradd -c "CMSSOFT" -n cmssoft
[root@grow-prod ~]# passwd cmssoft
[root@grow-prod ~]# chage -d 0 cmssoft
[root@grow-prod ~]# ssh-agent $SHELL
[root@grow-prod ~]# ssh-add
[root@grow-prod ~]# rocks sync config
[root@grow-prod ~]# rocks sync users
</xterm2>
===== Make CMSSW Directory =====
Create the cmssw directory.
<xterm2 root>
[root@grow-grid ~]# mkdir /export/cmssw
</xterm2>


Change the directory owner to cmssoft.
<xterm2 root>
[root@grow-grid export]# chown -R cmssoft:users /export/cmssw
</xterm2>
===== Network Mount CMSSW =====
Edit the auto.share file on the head node to add cmssw/
<xterm2 root>
[root@grow-prod ~]# vi /etc/auto.share
</xterm2>
Add the following line to network mount cmssw on all nodes.
<file text /etc/auto.share>
cmssw grid-0-0.local:/export/cmssw
</file>

Update the mount point to all nodes.
<xterm2 root>
[root@grow-prod dsquires]# cd /var/411
[root@grow-prod 411]# make clean
[root@grow-prod 411]# make
</xterm2>

Restart nfs services on the grid node.
<xterm2 root>
[root@grow-grid ~]# /etc/rc.d/init.d/nfs restart
<fc #008000>Shutting down NFS mountd: [  OK  ]
Shutting down NFS daemon: [  OK  ]
Shutting down NFS quotas: [  OK  ]
Shutting down NFS services:  [  OK  ]
Starting NFS services:  [  OK  ]
Starting NFS quotas: [  OK  ]
Starting NFS daemon: [  OK  ]
Starting NFS mountd: [  OK  ]</fc>

[root@grow-grid ~]# service autofs reload
<fc #008000>Reloading maps</fc>
</xterm2>

Configure nfs to start on reboot.
<xterm2 root>
[root@grow-grid ~]# /sbin/chkconfig --add nfs
[root@grow-grid ~]# chkconfig nfs on
</xterm2>
===== Restart Compute Node auto-NFS =====
<xterm2 root>
[root@grow-prod ~]# ssh-agent $SHELL
[root@grow-prod ~]# ssh-add
[root@grow-prod ~]# rocks run host compute login '/etc/rc.d/init.d/autofs restart'
</xterm2>
===== Install SL5 Libraries =====
[[https://twiki.cern.ch/twiki/bin/view/LCG/SL5DependencyRPM|Here]] is the link to the instructions on how to install the libraries.

<note>
We are not using the repository provided here: \\
[[http://grid-deployment.web.cern.ch/grid-deployment/download/HEP/repo/HEP_OSlibs.repo]].
</note>
Instead we installed the latest version from \\
[[http://grid-deployment.web.cern.ch/grid-deployment/download/HEP/repo/sl5/x86_64/RPMS/]]\\

<xterm2 root>
[root@grow-grid cmssw]# wget 'http://grid-deployment.web.cern.ch/grid-deployment/download/HEP/repo/sl5/x86_64/RPMS/HEP_OSlibs_SL5-1.0.3-0.x86_64.rpm'
</xterm2>

Install the package.
<xterm2 root>
[root@grow-grid cmssw]# yum localinstall HEP_OSlibs_SL5-1.0.3-0.x86_64.rpm
</xterm2>
===== Prepare CMSSW for Installation =====
[[https://twiki.cern.ch/twiki/bin/view/CMS/CMSSW_aptinstaller#One_time_initialization_of_the_s|Here]] is the official guide to follow.

<xterm2 root>
[root@grow-grid ~]# chmod 755 /export/cmssw
[root@grow-grid ~]# su cmssw
[cmssoft@grow-grid cmssw]$ export VO_CMS_SW_DIR="/share/cmssw"
[cmssoft@grow-grid cmssw]$ export LANG="C"
[cmssoft@grow-grid cmssw]$ wget -O $VO_CMS_SW_DIR/bootstrap.sh http://cmsrep.cern.ch/cmssw/cms/bootstrap.sh
[cmssoft@grow-grid cmssw]$ mkdir /tmp/$USER
[cmssoft@grow-grid cmssw]$ export SCRAM_ARCH=slc5_amd64_gcc434
[cmssoft@grow-grid cmssw]$ sh -x $VO_CMS_SW_DIR/bootstrap.sh setup -path $VO_CMS_SW_DIR -arch $SCRAM_ARCH >& $VO_CMS_SW_DIR/bootstrap_$SCRAM_ARCH.log
[cmssoft@grow-grid cmssw]$ source $VO_CMS_SW_DIR/$SCRAM_ARCH/external/apt/0.5.15lorg3.2-cms3/etc/profile.d/init.sh
</xterm2>

<note>This section is a fix</note>
<xterm2>
[cmssoft@grow-grid cmssw]$ apt-cache pkgnames | grep fake
<fc #008000>external+fakesystem+1.0-cms
external+fakesystem+1.0
external+fakesystem+1.0-cms2</fc>
</xterm2>

Now install all of these:
<xterm2>
[cmssoft@grow-grid cmssw]$ apt-get install external+fakesystem+1.0-cms
[cmssoft@grow-grid cmssw]$ apt-get install external+fakesystem+1.0
[cmssoft@grow-grid cmssw]$ apt-get install external+fakesystem+1.0-cms2
</xterm2>
==== Users Shell ====
Set the users shells to source cmmsw.

<xterm2 root>
[root@grow-prod profile.d]# vi /etc/profile.d/cmssw.csh
</xterm2>
<file bash /etc/profile.d/cmssw.csh>
# CMSSW
setenv VO_CMS_SW_DIR /share/cmssw
source $VO_CMS_SW_DIR/cmsset_default.csh
</file>

<xterm2 root>
[root@grow-prod profile.d]# vi /etc/profile.d/cmssw.sh
</xterm2>
<file bash /etc/profile.d/cmssw.sh>
# CMSSW
export VO_CMS_SW_DIR=/share/cmssw
. $VO_CMS_SW_DIR/cmsset_default.sh
</file>

Update the profiles to all nodes in the cluster.
<xterm2 root>
[root@grow-prod profile.d]# cd /var/411/
[root@grow-prod 411]# make clean
[root@grow-prod 411]# make
</xterm2>

On the grid node as the cmssw user, add the following line.
<xterm2>
[cmssoft@grow-grid ~]$ vi /share/osg/app/etc/grid3-locations.txt
</xterm2>
<file text /share/osg/app/etc/grid3-locations.txt>
VO-cms-slc5_amd64_gcc434 slc5_amd64_gcc434 /share/cmssw
</file>

Create a link
<xterm2>
[cmssoft@grow-grid ~]$ cd /share/osg/app/
[cmssoft@grow-grid app]$ ln -s /share/cmssw/ cmssoft/cms
</xterm2>


====== Notes ======


====== Contact Info ======
This Dokuwiki page is maintained by:\\
Daniel Squires\\
University of Iowa\\
Department of Computer Science\\
Email: <daniel-squires@uiowa.edu>