to operate the same way salloc or sbatch did and assign a task per cpu
by default instead of task per node.

correctly.  Before the errno wasn't being checked correctly

correctly as of IBM driver V1R1M1 efix 008.

configured correctly.

Move code to handle multiple clusters.  Previous code could have issues
where job_db_inx space could overlap.

current or in the past.

from Mark Nelson

Using the syscalls directly rather than calling bin/(u)mount via
system() avoids a few fork + exec calls, and provides better error
handling if something goes wrong.

Users of this functionality are also updated to use slurm_strerror in
order to provide a more informative error message.

The mount and umount syscalls are Linux-specific, but so are cgroups
so no portability is lost.

Using the syscalls directly rather than calling bin/(u)mount via
system() avoids a few fork + exec calls, and provides better error
handling if something goes wrong.

Users of this functionality are also updated to use slurm_strerror in
order to provide a more informative error message.

The mount and umount syscalls are Linux-specific, but so are cgroups
so no portability is lost.

Using the syscalls directly rather than calling bin/(u)mount via
system() avoids a few fork + exec calls, and provides better error
handling if something goes wrong.

Users of this functionality are also updated to use slurm_strerror in
order to provide a more informative error message.

The mount and umount syscalls are Linux-specific, but so are cgroups
so no portability is lost.

    the current plugin has been loaded when using runjob_mux_refresh_config

These comments were orphaned with this commit:  874f797f
Move the start time calculation of pending jobs into a separate pthread on Nov 3, 2010.

Correct parsing of srun/sbatch input/output/error file names so that only
the name "none" is mapped to /dev/null and not any file name starting
with "none" (e.g. "none.o"). This fixes bug #98.

Gres: If a gres has a count of one and an associated file then when doing
a reconfiguration, the node's bitmap was not cleared resulting in an
underflow upon job termination or removal from scheduling matrix by the
backfill scheduler.

Cray and BlueGene - Do not treat lack of usable front-end nodes when
slurmctld deamon starts as a fatal error. Also preserve correct front-end
node for jobs when there is more than one front-end node and the slurmctld
daemon restarts.

while it is attempting to free underlying hardware is marked in error
making small blocks overlapping with the freeing block.  This only
applies to dynamic layout mode.

This corresponds to commit dd2dce54
from Mark Grondona's work in squeue, but applied to the sview command.

Slurm 2.4 minor fixes