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• First it uses the variable ECF_SCRIPT and tries to open that file. ECF_SCRIPT is generated from ECF_HOME/SUITE/FAMILY/TASK.
  
  

• DEFAULT:
  Otherwise if variable ECF_FILES exists, it must point to a directory which is searched in reverse order, e.g. let's assume that the node name is /o/12/fc/model and that ECF_FILES is defined as /home/ecmwf/emos_ECF/def/o/ECFfiles.
  The order of files tried is as follows:

  Code Block
  /home/ecmwf/emos_ECF/def/o/ECFfiles/o/12/fc/model.ecf /home/ecmwf/emos_ECF/def/o/ECFfiles/12/fc/model.ecf /home/ecmwf/emos_ECF/def/o/ECFfiles/fc/model.ecf /home/ecmwf/emos_ECF/def/o/ECFfiles/model.ecf

  
  ALTERNATIVE:

  The search can be reversed, by adding a variable ECF_FILES_LOOKUP, with a value of "prune_leaf". ( from ecflow 4.12.0) .  

  Code Block
  edit ECF_FILES_LOOKUP prune_leaf

  Then ecFlow will use the following search pattern

  Code Block
  /home/ecmwf/emos_ECF/def/o/ECFfiles/o/12/fc/model.ecf /home/ecmwf/emos_ECF/def/o/ECFfiles/o/12/model.ecf /home/ecmwf/emos_ECF/def/o/ECFfiles/o/model.ecf /home/ecmwf/emos_ECF/def/o/ECFfiles/model.ecf

          However please be aware this will also affect the search in ECF_HOME

•  If the ECF_FILES directory does not exist, the server will try variable substitution.  This allows additional configuration.

           edit ECF_FILES /home/ecmwf/emos/def/o/%FILE_DIR:ECFfiles%

• Finally it searches ECF_HOME directory. ( using the DEFAULT or ALTERNATIVE lookup methods)

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