Add support for job array options in the qsub command, in #PBS
options for sbatch scripts and set the appropriate environment
variables in the spank_pbs plugin (PBS_ARRAY_ID and PBS_ARRAY_INDEX).
Note that Torque uses the "-t" option and PBS Pro uses the "-J"
option.

slurm.conf.  Rebooting daemons after adding nodes to the slurm.conf
is highly recommended.

Perhaps should also look into doing this for nodeinfo and libstate

this would cause pmd's to hang.

code.

interval.

merged together.

sacct.

Add support for SchedulerParameters value of bf_max_job_start that limits
the total number of jobs that can be started in a single iteration of the
backfill scheduler.
bug 607

bug 607

placed.

count.

nodes.

If a job requires specific nodes and can not run due to those nodes being
busy, the main scheduling loop will block those specific nodes rather than
the entire queue/partition.
bug 595

is not a corresponding association.

is not a corresponding association.

needed to forward a message the slurmd would core dump.

describing that jobs must be drained from cluster before deploying
any checkpoint plugin.

Properly enforce a job's cpus-per-task option when a job's allocation is
constrained on some nodes by the mem-per-cpu option.
bug 590