the federation driver's state on the slurmctld

Check the rdma job_count before allocating windows.

signed to/from unsigned variables, variable precision, etc.).

copied from existing document).

job's checkpoint image.

job step.
fed driver waits for windows to become unloaded before attempting to load
the network table.

checkpoints. It sends an abort signal on timeout.

in order to avoid confusion with slurm partitions.

we know better.

Check _allocate_windows' return code.

Remove maximum processes limitation.

Stick the federation key in the ntbl job desc string.

node when using sn_all.
sn_single is not yet supported.