Page Comparison

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• Visibility: Public
• Change Control: Stable
• Details:
  
  • Reservations can now be submitted to a specific partition using a new "-p" option with pbs_rsub command.
  • "-p" option in pbs_rsub command takes partition name as input and makes pbs_server to trigger a scheduling cycle of the scheduler that is servicing the partition.
  • If a scheduler servicing the requested partition isn't up and running then pbs server will store the reservation with itself and mark it as "UNCONFIRMED" until it is able to trigger a scheduling cycle of the said scheduler.
    
    

Interface 9: Deleted

Interface 10: Fairshare

• Visibility: Public
• Change Control: Stable

• Unless there is only a single scheduler, the fairshare scheduling policy per whole PBS complex is no longer supported.
  • This policy is limited to each individual scheduler.
• The pbsfs command will now act on a single scheduler's fairshare usage database.
  • The new '-I' option allows the admin to specify which scheduler
    • If no '-I' option is given, pbsfs will act upon the default scheduler
    • pbsfs will now contact the server to query the location of the sched_priv for the scheduler.
      
      • Since contacting the server is now required, the server needs to be running to use pbsfs.  This was not true before.
    • If the scheduler's sched_priv is not accessible, the existing error message will be printed

      • Unable to access fairshare data

  • Example:
    • pbsfs -s user1 10
      • sets user1's usage to 10 for the default scheduler
    • pbsfs -I sched2 -s user2 10
      • sets user2's usage to 10 for sched2.

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  Notes: 

1. What is not supported when multiple scheduler objects are present.

• With the introduction of this feature following things are not supported.
  • Run limits set on server are not supported because a scheduler object does not have a view of  the whole PBS universe.Fairshare scheduling policy per whole PBS complex is not supported going forward instead this policy can be limited to each individual scheduler.

       2. Server's backfill_depth will be default value for all the schedulers in the complex.

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