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This is an example to run jobs and especially SLIC , the Simulator for the Linear Collider, on the FermiGrid which is part of the Open Science Grid. SLIC is a Geant4-based simulations package that uses an XML geometry input format called LCDD to describe geometry, sensitive detectors and readout geometry. In this example SLIC is tared up and put on a web accessible disk space. The grid jobs wgets the tar file unpacks it and runs SLIC on the stdhep files that is provided with the tar package.
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- get a DOE grid certificate from http://security.fnal.gov/pki/Get-Personal-DOEGrids-Cert.html
This page also explains how to export the certificate from the browser and how to deal with directory permissions and such. - register to the ILC VO (Virtual organization) at http://cd-amr.fnal.gov/ilc/ilcsim/ilcvo-registration.shtml that will guide you to:
https://voms.fnal.gov:8443/vomrs/ilc/vomrs - Everything is set up on ILCSIM. So to try things out it is recommended to get an account on ILCSIM using the following form
http://cd-amr.fnal.gov/ilc/ilcsim/ilcsim.shtml
If you don't use ILCSIM as the gateway Setting up your own gateway to the grid is beyond the scope of this write up. It involves installing the Virtual Data Toolkit (VDT) needs to be installed on the machine from where you want to submit jobs. And as always if you plan on running any grid services you, you'll need a host certificate for your machine
the gateway machine etc. etc. For an administration guide see the Fermi Grid web page.
Examples
The SLIC test job below actually tries to store the output in mass storage using the grid srmcp file transfer tool. But It's probably easier to transfer the output via condor. An example will be provided once it has been tested.
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which triggers the following script:
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#/bin/sh -f{color}
wget{color} http://kyoto.fnal.gov/wenzel/SimDist.tgz
tar xzf SimDist.tgz
cd SimDist
printenv
scripts/slic.sh -r 5 -g sidaug05.lcdd -i ffHAA_2k.stdhep -o ffHAA_2k
ls ffHAA_2k.slcio
# This sets up the environment for osg
. $OSG_GRID/setup.sh
source $VDT_LOCATION/setup.csh
srmcp "file:///\{PWD\}/ffHAA_2k.slcio" "srm://cmssrm.fnal.gov:8443/srm/managerv1?SFN=/2/wenzel/slic/ffHAA_2k.slcio"
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