bug 3035 and 3009

Otherwise blade_cnt is potentially greater than
bit_size(jobinfo->blade_map) which leads to an assertion failure.

Bug 3033.

with hwloc.

This patch has two parts:
1. When a job is intially submitted, the Slurm was failing to set
   an initial reason for the job not starting.
2. After a job was submitted, it was sometimes failing to reset
   the job's reason. It was also failing to reset the "last_job_update"
   time, so something like "squeue -i1" would not get the new reason.
bug 3025

Fix multipart srun submission with EnforcePartLimits=NO and job violating
    the partition limits.
bug 3025

bug 3011

If all GRES were not defined on all nodes OR if a regular expression was used
   for a GRES file configuration (e.g. in gres.conf
   "Type=gpu Files=/dev/nvidia[0-4]"), then memory corruption was likely.
   The logic has been bad since its inception several years ago.

POLLRDHUP does not exist on BSD, define to POLLHUP as done elsewhere.

The attached patch switches to a more reliable method of detecting
service nodes, using xtcli status. In addition, it switches to the print
function to be better compatible with python 3.

To ease the distribution process, plugin names will be automatically
adjusted to identify the version of API that it can support,
ie: pmix_v1 and pmix_v2.
This provides the ability for distro's to create separate
non-conflicting packages for each API generation.

Bug 2986

Add job burst_buffer_state and delay_boot fields to scontrol and squeue
    output. Also add ability to modify delay_boot from scontrol.

Add salloc, sbatch and srun option of --delay-boot=<time>, which will
    temporarily delay booting nodes into the desired state for a job in the
    hope of using nodes already

Add job AdminComment field which can only be set by a Slurm administrator.

Add event trigger on burst buffer errors (see strigger man page,
    --burst_buffer option).

Insure reported expected job start time is not in the past for pending jobs.
bug 3002

burst_buffer/cray: Requeue, but do not hold a job which fails the pre_run
    operation.
bug 3009

Only mark job_id as zero for batch step (when all job steps would be
cleared), not for individual steps which prevented successive steps
from being cancelled.

Bug 2984.

slurmstepd modified to pre-load all relevant plugins at startup to avoid
    the possibility of modified plugins later resulting in inconsistent API
    or data structures and a failure of slurmstepd.
bug 2334

bug 2655

Bug 2983.

Don't about step launch if job reaches expected end time while node is
    configuring/booting (NOTE: The job end time will be adjusted after node
    becomes ready for use).
bug 2985

Optionally lock slurmstepd in memory for performance reasons and to avoid
    possible SIGBUS if the daemon is paged out at the time of a Slurm upgrade
    (changing plugins). Controlled via new LaunchParameters options of
    slurmstepd_memlock and slurmstepd_memlock_all.
bug 2334

frequency other than AcctGatherNodeFreq.

Filesystem instead of Lustre.

Network dataset.

Locking slurmstepd in memory can result in exhausting real memory
  in some cases, resulting in failure of the slurmstepd process.
  This reverts commit 03cf4a5d,
  but the logic will be returned using a configuration parameter
  in Slurm version 17.02.
bug 2334

This should improve performance and prevent failure if a local
  group ID lookup fails.
bug 2928

Prevent slurmd abort if hwloc library fails to populate the "children"
    arrays (observed with hwloc version "dev-333-g85ea6e4").

4 billion jobs in your database you will want to update your slurmctld at
the same time as your slurmdbd to prevent roll over of this variable as
it is 32 bit previous versions of Slurm.

Bug 2955.

Make EnforcePartLimit support logic work with any ordering of partitions
    in job submit request.
Developed jointly with Alejandro Sanchez <alex@schedmd.com>
bug 2920