Checking the Status of Computing Nodes

You can check the general status the computing nodes by using the sinfo command, which will display the following:

PARTITION AVAIL  TIMELIMIT  NODES  STATE NODELIST
normal*      up 14-00:00:0      1 drain* c8
normal*      up 14-00:00:0      1  drain c39
normal*      up 14-00:00:0     18    mix c[5-7,9-14,16-19,21-22,24-26]
normal*      up 14-00:00:0      1  alloc c40
normal*      up 14-00:00:0     14   idle c[15,20,27-38]
bcc          up 14-00:00:0      5    mix b[13-16],c2
bcc          up 14-00:00:0      4   idle b17,c[1,3-4]
kellis       up 28-00:00:0     12    mix b[1-12]

We've also provided a custom command, nodeInf, that will give more detailed information about each node. For example:

NODELIST PARTITION CPUS(A/I/O/T) CPU_LOAD FREE_MEM   MEMORY    STATE
      b1    kellis    82/14/0/96   145.58   405507   768000    mixed
      b2    kellis    84/12/0/96   302.81   504957   768000    mixed
...
      c1       bcc     0/32/0/32     0.01   127590   128000     idle
      c2       bcc     8/24/0/32    15.34      380   128000    mixed
      c3       bcc     0/32/0/32     0.01   127534   128000     idle
      c4       bcc     0/32/0/32     0.01   127505   128000     idle
      c5   normal*     2/14/0/16     0.01   127561   128000    mixed
      c6   normal*     2/14/0/16    18.90      344   128000    mixed
...

• NODELIST - The name of the node

• PARTITION - The partition which the node belongs to

• CPUS (A/I/O/T) - Enumerates what CPUs are Allocated/Idle/Other/Total # of CPUS

• CPU_LOAD - The load on the CPU

• FREE_MEM - The amount of free RAM on the node

• MEMORY - The total amount of RAM on the node

• STATE - the state of the node. Idle means it's not in use, mixed means it's in use but still has resources available, drained means it's fully in use.