The ATLAS GRid Application Toolkit (GRAT) provides basic tools for U.S. ATLAS Grid Testbed users.

Running GRAT:

• cd usertools-0.4
• For status of grid nodes, type: ./gridstat
• To run boxed atlfast on any globus 2.0 gatekeeper (ATLAS, CMS, D0... requires ~17MB binary transfer to remote site): ./run-atlfast-boxed
• If using Red Hat 7.x without compat libraries (requires ~37MB binary transfer), use ./run-atlfast-boxed7
• List of RedHat 6.x and RedHat 7.x nodes where above tools have been tested
• To run atlfast on a testbed grid node where binaries have been pre-installed: ./run-atlfast
  (Boxed versions developed and maintained by Kaushik De).
• To run afs-based atlfast on testbed grid node (requires afs login):
  ./run-atlfast-afs or ./run-atlfast-afs-multi (for multiple job submission)
• All of the scripts above will accept the following options
  ./run-atlfast* [nodename] [# of events] [isajet/pythia] [# of jobs for -multi]
  or type ./run-atlfast* [-help] for user help

Analyzing GRAT data:

• To analyze the atlfast.ntup file created in your local directory, start pawX11 and type: his/file 1 atlfast.ntup; cd atlfast; nt/plot 51.pxnue (requires cernlib to be installed)