Accounting

Job Output

At the end of each slurm job, some accounting information is appended to the output file:

########################################
#            Job Accounting            #
########################################
Name                : my-job-name
User                : myuser
Account             : hsuper
Partition           : small
QOS                 : normal
NNodes              : 1
Nodes               : node0267
Cores               : 144 (72 physical)
GPUs                : 0
State               : COMPLETED
ExitCode            : 0:0
Submit              : 2024-02-29T14:28:30
Start               : 2024-02-29T14:28:31
End                 : 2024-02-29T17:55:27
Waited              :    00:00:01
Reserved walltime   :  1-00:00:00
Used walltime       :    03:26:56
Used CPU time       : 10-07:02:27 (Efficiency: 99.48%)
% User (Computation): 99.91%
% System (I/O)      :  0.09%
Mem reserved        : 245000M
Max Mem used        : 205.48M (node0267)
Max Disk Write      : 16.36M (node0267)
Max Disk Read       : 1.14M (node0267)
Energy (CPU+Mem)    : 2.26kWh (0.95kg CO2, 1.17€)

This output is generated by the jobinfo script.
If a GPU node was used, the statistics from the NVIDIA Data Center GPU Manager are also appended.

Slurm Accounting

Additional metrics can be obtained using the slurm CLI using sacct -j <job id> -o <field1,field2,...> as documented here.

Energy Consumption

Energy consumption measurement is an important part of HPC accounting and is described in detail on the next page.