select/cons_res plugin: Fix memory leak related to job preemption.
bug 837

This give system administrators the option on AMD Opteron 6000
series processors of either considering each NUMA node on a socket
as a separate socket (resulting in some incorrect logging of socket
count information) or not (resulting in sub-optimal job allocations
since each core in the socket will be considered equivalent, even
if on different NUMA nodes within the socket).
bug 838

Replace round-robin front-end node selection with least-loaded algorithm.

not able to be separated into multiply patches.

If EnforcePartLimits=Yes and QOS job is using can override limits, allow
it.

Fix issues if partition allows or denys account's or QOS' and either are
not set.

If a job requests a partition and it doesn't allow a QOS or account the
job is requesting pend unless EnforcePartLimits=Yes.  Before it would
always kill the job at submit.

based on the mask given.

task/affinity.

thread in a core.

it can bind cyclically across sockets.

add a PriorityFlags option of CALCULATE_RUNNING. If set, then the
priority of running jobs will continue to be recalculated
periodically. The PriorityFlags value reported by sview and
"scontrol show config" will be reported as a string rather
than its numeric value.

cpus-per-task support: Try to pack all CPUs of each tasks onto one socket.
Previous logic could spread the tasks CPUs across multiple sockets.

This reverts commit b22268d8.

Properly enforce job --requeue and --norequeue options. Previous
logic was in three places not doing so (either ignoring the value,
ANDing it with the JobRequeue configuration option or using the
JobRequeue configuration option by itself).
bug 821

Add support for a job step's CPU governor and/or frequency to be reset on
suspend/resume (or gang scheduling). The default for an idle CPU will now
be "ondemand" rather than "userspace" with the lowest frequency (to recover
from hard slurmd failures and support gang scheduling).

Add srun --cpu-freq options to set the CPU governor (OnDemand, Performance,
Conservative, PowerSave or UserSpace).
task/affinity: support set cpu_freq without cpuset (using hwloc and sched functions)
Fix calculation used to set --cpu-freq=highm1 (relied upon ordering of possible
CPU frequencies).

Add SelectTypeParameters option of CR_PACK_NODES to pack a job's tasks
tightly on its allocated nodes rather than distributing them evenly across
the allocated nodes.
bug 819

something you also get a signal which would produce deadlock.

Fix Bug 601.

If a job step reqeusts specific cores outside of their allocation
with the --core-spec option, then bind the tasks to only those
CPUs available to the job.

task/cgroup - Correct specialized core task binding with user supplied
invalid CPU mask or map. Rather than generating an error and ignoring
user specification. Mask user supplied map against available CPUs or
bind to all available CPUs. In either case, log the invalid CPU map
or mask.
bug 782

Run EpilogSlurmctld for a job is killed during slurmctld reconfiguration.
bug 806

Only if ALL of their partitions are hidden will a job be hidden by default.
bug 812

Correct SelectTypeParameters=CR_LLN with job selecition of specific nodes.
Previous logic would in most instances allocate resources on all nodes
to the job.

Correct squeue's job node and CPU counts for requeued jobs.
Previously, when a job was requeued, its CPU count reported
was that of the previous execution. When combined with the
--ntasks-per-node option, squeue would compute the expected
node count. If the --exclusive option is also used, the node
count reported by squeue could be off by a large margin (e.g.
"sbatch --exclusive --ntasks-per-node=1 -N1 .." on requeue
would use the number of CPUs on the allocated node to recompute
the expected node count).
bug 756

jobacct_gather/cgroup.

Support SLURM_CONF path which does not have "slurm.conf" as the file name.
bug 803

If a job has non-responding node, retry job step create rather than
returning with DOWN node error.
bug 734

Also correct related documentation

Completing nodes is removed when calling _try_sched() for a job, which
is the case in select_nodes(). If _try_sched() thinks the job can run
now but select_nodes() returns ESLURM_NODES_BUSY, the backfill loop will
be ended.

Do not resume a job with specialized cores on a node running another job
with specialized cores (only one can run at a time).
bug 792

Fix sinfo -R to print each down/drained node once, rather than once per
partition. This was broken in the sinfo change to process each partition's
information in a separate pthread.

Correct sinfo --sort fields to match documentation: E => Reason,
H -> Reason Time (new), R -> Partition Name, u/U -> Reason user (new)

Without this patch, jobs with an infinite time limit would have
their preemption GraceTime ignored.