This commit fixes a bug we observed when combining select/linear with
gres. If an allocation was requested with a --gres argument an srun
execution within that allocation would stall indefinitely:

-bash-4.1$ salloc -N 1 --gres=gpfs:100
salloc: Granted job allocation 384049
bash-4.1$ srun -w j3c017 -n 1 hostname
srun: Job step creation temporarily disabled, retrying

The slurmctld log showed:

debug3: StepDesc: user_id=10034 job_id=384049 node_count=1-1 cpu_count=1
debug3:    cpu_freq=4294967294 num_tasks=1 relative=65534 task_dist=1 node_list=j3c017
debug3:    host=j3l02 port=33608 name=hostname network=(null) exclusive=0
debug3:    checkpoint-dir=/home/user checkpoint_int=0
debug3:    mem_per_node=62720 resv_port_cnt=65534 immediate=0 no_kill=0
debug3:    overcommit=0 time_limit=0 gres=(null) constraints=(null)
debug:  Configuration for job 384049 complete
_pick_step_nodes: some requested nodes j3c017 still have memory used by other steps
_slurm_rpc_job_step_create for job 384049: Requested nodes are busy

If srun --exclusive would have be used instead everything would work fine.
The reason is that in exclusive mode the code properly checks whether memory
is a reserved resource in the _pick_step_node() function.
This commit modifies the alternate code path to do the same.

(i.e ArchiveJobs PurgeJobs).  This is only a cosmetic change.

on slurmdbd startup.

lots of jobs.

did the ALPS reservation.  Bug 1115

Take more job options into consideration to estimate its node count.

At work in Sweden we often fika (coffee+buns and what have u) at 3PM. I sometimes accidentally give a start time of 'teatime', so when I return from 'fika' I see my job's just getting started. This fix should make life even easier for the Swedes.

a reservation.

which they have access to (rather then preventing them from seeing ANY
reservation).  Backport from 14.11 commit 77c2bd25.

arbitrary layouts (test1.59).

option (since it isn't).

Do not cause it to be rebooted (powered up).

When a node's state is set to power_down, then execute SuspendProgram
even if previously executed for that node.

Fix logic determining when job configuration (i.e. running node power up
logic) is complete. (Will look at better solution for v14.11).

When a node's state is set to power_up, then execute ResumeProgram even if
previously executed for that node.

different times when reservations are using the associations that are
being deleted.

Remove logic that was creating GRES bitmap for node when not needed (only
needed when GRES mapped to specific files).

Correct logic to support job GRES specification over 31 bits (problem
in logic converting int to uint32_t).

when terminating the job.

different number of dimensions than the cluster.

when terminating the job.

--signal option.

to allow sview to display blocks correctly.

to avoid overlapping erroneously.

Before you could get overlapping reservations if you asked for a core
based reservation and then a whole node reservation.  This fixes that.

describing the error code.