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• Visibility: Public
• Change Control: Stable
• Synopsis: Modifications to revert resources, vnodes and vnodes hooks settings for Cray.
  
• Standing of the interface : modified interface
  
• Details

• resources and vnodes
  
  • As part of reverting resources, the PBS_HOME/server_priv/resourcedef file is removed.
    
    • If on Cray or Cray ALPS simulator, then recreate the out-of-box Cray-specific custom resources and vnodes,
      including the ones PBS creates from reading the ALPS inventory, by:
      • Checking that $alps_client and its value exists in PBS_HOME/mom_priv/config, and if so:
        • delete all the vnodes: qmgr -c "delete node @default"
        • add back the MoMs: qmgr -c "create n <MoM hostname>"
        • check until such time that the MoM node has actually been added and the node state is free
        • if successful, then
          
          • the resourcedef file and the vnodes would have reverted to the out-of-box Cray configuration.
        • If there is an error during one of the following:
          • checking if $alps_client is properly configured
          • deleting all vnodes
          • adding MoMs
          then raise an exception.
• hooks
  • As part of reverting hooks, all hooks, except built-in hooks, are disabled. 
    
    • If on a Cray or Cray ALPS simulator, then enable the PBS_translate_mpp hook by:
      • copying PBS_EXEC/lib/python/altair/pbs_hooks/PBS_translate_mpp.HK to PBS_HOME/server_priv/hooks/PBS_translate_mpp.HK
      • • if there is an error, then raise an exception
      • then set enabled=true in PBS_HOME/server_priv/hooks/PBS_translate_mpp.HK
        • if there is an error, then raise an exception