automatically generate mpirun's machinefile based upon the job's allocation.
    See "etc/mpich1.slurm.patch".

the possibility of processes forked from slurmstepd needing to dlopen
plugin libraries.

wiki plugin to restart (needed by for the backup slurmctld).

no switch info has yet been created.

    node's state (from Prashanth Tamraparni, HP).

libjob doesn't check for NULL parameter.

(this has not be a problem, but just being consistent)