• Created by Unknown User (chamont), last modified on Jan 08, 2008

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Use of the skimmer on Noric machines

The skimmer is only usable on linux, and most of its features will not work outside of SLAC network, because it needs the access to intput ROOT data files, and to the metadata database (at least for the step which is preparing the list of input ROOT data files). This is why it is recommended to use the skimmer only on noric machines, where any new release is installed by its developers.

If one want to use the release v3r10, one can simply set the relevant shell variables (as described below) and type : 

/afs/slac/g/glast/ground/DataServer/v3r10/bin/skimmer

Of course, it is sane to define an alias in your Unix account setup files, or add the DataServer bin directory to the Unix PATH.

For what concerns the external tools, skimmer v3r10 depends on :

  1. Perl 5, which should be found with "/usr/bin/env perl".
  2. ROOT 5.10.00 to 5.16.00 : the user can specify $ROOTSYS to any ROOT release, and it will be used as is by the skimmer, but the only validated releases are 5.10.00, 5.14.00g and 5.16.00 ; if not defined, the skimmer will search for $GLAST_EXT/ROOT/v5.10.00/root ; if GLAST_EXT is not defined, it will be set to /nfs/farm/g/glast/u05/GLAST_EXT/rh9_gcc32.
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