Setup of CDF Software

The standard CDF software setup is:
      source ~cdfsoft/cdf2.cshrc
      setup cdfsoft2 {release #}
      setup sam
      setenv SAM_STATION cdf-rutgers
      setenv CAF_CURRENT  rutgers

Register as a user of SAM

Submitting the CAF Job

The standard CAF job submission uses the option
   --dataset z8v25z
or equivalent in the cafgui (use your own dataset_id).
This defines environ variable SAM_DATASET used below.

CDF DHInput options

   cache set SAM
   include dataset $env(SAM_DATASET)

• DO NOT USE "cache set dcache" or the default.
• The "SAM" option uses the local SAM cache disk and will cause a fetch from Fermilab if your requested files are not already present in local SAM space. Files fetched will be kept locally until disk space is needed for new requests so subsequent read requests will not cause a fetch from Fermilab. Links on the web page above this show what files and datasets are present locally.
• Rutgers secondary datasets are stored at Fermilab and are available by the same "SAM" option.
• The rootd option works in the worker nodes as well as in hexfm1. It enables the read of data from any CDF computing system that has the rootd daemon working. Such daemons exist on fcdflnxN, the CAF systems, and CDF Trailer computing systems. This option also enables static disks to be read. Note that no local copy of files are kept; the files are transferred directly into the user jobs.
• If there is SAM trouble with the delivery of files, help might be available at cdfsam-admin@fnal.gov (do not use sam-admin@fnal.gov even if the error message says to do so).

Export of Data