The documentation explains how to use the grid interfaces here at Purdue.

To submit jobs to Purdue grid means to submit jobs to cluster Purdue-RCAC or cluster Purdue-Steele through gatekeeper osg.rcac.purdue.edu or lepton.rcac.purdue.edu. In order to do this, grid authentication is needed.

Authentication

The application process is explained here:

Applying for a DOE grid certificate and CMS VO

Renewing a DOE grid certificate and CMS VO  

Importing and exporting a certificate to Browsers

Once you have received your certificate and registered to CMS VO, you need get a shell account at a local login machine "cms.rcac.purdue.edu". This local login machine has all the grid software installed, but is not attached to any particular cluster on the grid. The instructions for getting the shell account and installing your certificate:

Getting a local shell account

Joining mailing lists

User space policy  

Installing your certificate on the local login machine

Once you installed your certificate and got the CMS VO, you can test the certificate and generate proxy now.

Simple commands and testing

 Initializing the Globus proxy:

bash-3.00$ grid-proxy-init
Your identity: /DC=org/DC=doegrids/OU=People/CN=haiying xu 752975
Enter GRID pass phrase for this identity:
Creating proxy ........................................ Done
Your proxy is valid until: Tue Jun 17 03:34:19 2008
bash-3.00$

Testing authentication: 

bash-3.00$ globusrun -a -r osg.rcac.purdue.edu
 
GRAM Authentication test successful

 Initializing the VOMS proxy:

bash-3.00$ voms-proxy-init -hours 100 -voms cms
Cannot find file or dir: /home/condor/execute/dir_11128/userdir/glite/etc
/vomses
Enter GRID pass phrase:
Your identity: /DC=org/DC=doegrids/OU=People/CN=haiying xu 752975
Cannot find file or dir: /home/condor/execute/dir_11128/userdir/glite
/etc/vomses
Creating temporary proxy
 ....................................... Done
Contacting  lcg-voms.cern.ch:15002 [/DC=ch/DC=cern/OU=computers
/CN=lcg-voms.cern.ch] "cms" Done
Creating proxy .......................................... Done
Your proxy is valid until Fri Jun 20 20:07:51 2008

To use the data that are stored at dCache.rcac.purdue.edu, you can find the names of all dataset that registered at global DBS and our local DBS in the following links. Our local DBS stores the local production data.

Data resources

Local Data at Global DBS

Local Data at Local DBS

When you want to submit jobs to our cluster, you must want to know how many job slots are available and how many dCache storages are available.

Available Job Slots and dCache storage

Job slots information is shown in one of two pie graphs on the upper right side of this page. 

dCache storage space information is shown in the other pie graph. 

Manage Jobs with CRAB

Descriptions of the cmsRun python configuration syntax

Submitting jobs through CRAB

Submitting jobs through Condor-G

CMS FileMover Service: to get your favorite data via plain download from a web interface 

Data Operations

Publishing data using CRAB