packing approach (applies to configurations without topology/tree).

  (previously ignored).

    ignored in enforcing the maximum CPU limit.

Fix for MaxCPUs to honor partitions of 1 node that have more than the maxcpus for a job.  exclusive doesn't work correctly though

   retrieve from the accounting storage db a user's request for job usage or
   machine utilization statistics and charts the results to a browser.

    support writing scheduling events to a separate log file.

    Process (Thread POSIX) appearing in the /proc directory. Only account for
    the original process (pid==tgid) to avoid accounting for memory use more
    than once.
Add proctrack/cgroup plugin which uses Linux control groups (aka cgroup)
    to track processes on Linux systems having this feature enabled (kernel
    >= 2.6.24).

    option will allocate one task per core by default. Without this option,
    by default one task will be allocated per thread on nodes with more than
    one ThreadsPerCore configured.

    to release processes which TotalView does not attach to.

    has been modified to display and modify the new field. sched/backfill
    plugin has been changed to alter time limits of jobs with the
    --time-min option if doing so permit earlier job initiation.

    for jobs and job steps as a percentage of their real memory allocation.

    S_STEP_ALLOC_MEM. Support will remain for S_JOB_ALLOC_CORES and
    S_JOB_ALLOC_MEM.
Kill individual job steps that exceed their memory limit rather than
    killing an entire job if one step exceeds its memory limit.

Much functionality has been added to account_storage/pgsql.  The plugin is still in a very beta state.  It is still highly advised to use the mysql plugin, but if you feel like living on the edge or just really like postgres over mysql for some reason here you go. (Work done primarily by Hongjia Cao, NUDT.)

  NOTE: There will be no change in behavior unless partition configuration 
  or node Features/Weight are altered using the scontrol command to differ 
  from the contents of the slurm.conf configuration file.

  Preserve current partition state information plus node Feature and Weight 
  state information after slurmctld receives a SIGHUP signal or is restarted 
  with the -R option. Recreate partition plus node information (except node
  State and Reason) from slurm.conf file after executing "scontrol reconfig" 
  or restarting slurmctld *without* the -R option. 

     OPERATION            ACTION
     slurmctld -R         Recover all job, node and partition state
     slurmctld            Recover job state, recreate node and partition state
     slurmctld -c         Recover no jobs, recreate node and partition state
     SIGHUP to slurmctld  Preserve all job, node and partition state
     scontrol reconfig    Preserve job state, recreate node and partition state

  Old logic preserved node Feature plus partition state after "slurmctld" or 
  "scontrol reconfig" rather than recreating it from slurm.conf. Node Weight 
  was formerly always recreated from slurm.conf.