How busy is the cluster?

You can get the current status of all nodes on a cluster using the command sinfo, you will get a printout like the following.

The nodelist column has been truncated for readability

PARTITION     AVAIL   TIMELIMIT    S:C:T MEMORY   NODES(A/I) NODELIST
genoa         up    21-00:00:00   2:84:2 366694+  62/0       c[001-044],g[01-12],l[01-08]
milan         up    21-00:00:00  4+:16:2 491520+  52/3       mc[046-091,093-100],mg[13-16],ml[10-16]
hugemem       up    21-00:00:00   4:22:2 6100000  1/0        cl17
maintenance   up    21-00:00:00 2+:16+:2 366694+  115/3      c[001-044],cl17,g[01-12],l[01-08],mc[046-091,093-100],mg[13-16],ml[10-16]

Each partition has a row for every state it's nodes are currently in.

For example, the large partition currently has  1 down node,  133 mixed nodes,  7 allocated nodes and  85 idle nodes.

The most common node states you are likely to see are:

State	Description
idle	All CPUs on this node are unallocated and available for use.
allocated	All CPUs on this node are currently allocated.
mixed	Some CPUs on this node are unallocated, smaller jobs are likely to land here.
down	The node is unavailable for use
reserved	This node has been reserved, and is only available for some users (in the case of the igpu partition, please contact NeSI support if you wish to use it).
draining	Jobs are currently running on this node, but is not available for new jobs.

See the Slurm documentation for a full list of node states.

If you are interested in the state of one partition in particular you may want to use the command squeue -p <partition> to get the current queue of the partition <partition>.