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Herbert Greenlee, 01/05/2015 02:56 PM

The experiment environment setup script

Every experiment has a script for initializing its standard software environment installed in a standard place. This script may do any or all of the following things.

  • Initialize ups products system and products areas.
  • Set up some basic ups products.
  • Set environment variables.

This section the recommended way of writing this script.

Initializing ups

After initializing ups, the following should be the case:

  • The executable ups should be on the execution path.
  • Command or alias setup should be defined.
  • The products path (environment variable PRODUCTS) should be defined as a colon-separated list of ups products areas.

With respect to the last point, the products path may include the following ups products areas (in order).

  • Experiment-specific products (e.g. /grid/fermiapp/products/uboone).
  • Larsoft products (for larsoft experiments, e.g. /grid/fermiapp/products/larsoft).
  • Fermilab common products (e.g. /grid/fermiapp/products/common/db).

Generally, ups is initialized by sourcing a script called "setups" (or "" or "setups.csh", the name can vary) from some standard place. It is acceptable to source multiple "setups" scripts from multiple products areas, as well as extending the products path to include additional products areas manually.

For larsoft experiments on nodes where the /grid/fermiapp filesystem is mounted, the main setups file path is /grid/fermiapp/products/larsoft/setups.

When initializing ups from the oasis cvmfs products area, the main larsoft setups file path is /cvmfs/

Experiment-specific hooks