sstat - Man Page
Display the status information of a running job/step.
Examples (TL;DR)
- Display status information of a comma-separated list of jobs:
sstat --jobs=job_id
- Display job ID, average CPU and average virtual memory size of a comma-separated list of jobs, with pipes as column delimiters:
sstat --parsable --jobs=job_id --format=JobID,AveCPU,AveVMSize
- Display list of fields available:
sstat --helpformat
Synopsis
sstat [Options...]
Description
Status information for running jobs invoked with Slurm.
The sstat command displays job status information for your analysis. The sstat command displays information pertaining to CPU, Task, Node, Resident Set Size (RSS) and Virtual Memory (VM). You can tailor the output with the use of the --fields= option to specify the fields to be shown.
For the root user, the sstat command displays job status data for any job running on the system.
For the non-root user, the sstat output is limited to the user's jobs.
NOTE: The sstat command requires that the jobacct_gather plugin be installed and operational.
NOTE: Availability of metrics rely on the jobacct_gather plugin used. For example the jobacct_gather/cgroup in combination with cgroup/v2 does not provide Virtual Memory metrics due to limitations in the kernel cgroups interfaces and will show a 0 for the related fields.
Options
- -a, --allsteps
Print all steps for the given job(s) when no step is specified.
- -o, --format, --fields
Comma separated list of fields. (use '--helpformat' for a list of available fields).
NOTE: When using the format option for listing various fields you can put a %NUMBER afterwards to specify how many characters should be printed.
i.e. format=name%30 will print 30 characters of field name right justified. A -30 will print 30 characters left justified.
- -h, --help
Displays a general help message.
- -e, --helpformat
Print a list of fields that can be specified with the '--format' option.
- -j, --jobs
Format is <job(.step)>. Stat this job step or comma-separated list of job steps. This option is required. The step portion will default to the lowest numbered (not batch, extern, etc) step running if not specified, unless the --allsteps flag is set where not specifying a step will result in all running steps to be displayed. NOTE: A step id of 'batch' will display the information about the batch step. NOTE: A step id of 'extern' will display the information about the extern step. This step is only available when using PrologFlags=contain
- --noconvert
Don't convert units from their original type (e.g. 2048M won't be converted to 2G).
- -n, --noheader
No heading will be added to the output. The default action is to display a header.
- -p, --parsable
output will be '|' delimited with a '|' at the end
- -P, --parsable2
output will be '|' delimited without a '|' at the end
- -i, --pidformat
Predefined format to list the pids running for each job step. (JobId,Nodes,Pids)
- --usage
Display a command usage summary.
- -v, --verbose
Primarily for debugging purposes, report the state of various variables during processing.
- -V, --version
Print version.
Job Status Fields
Descriptions of each field option can be found below. Note that the Ave*, Max* and Min* accounting fields look at the values for all the tasks of each step in a job and return the average, maximum or minimum values for the job step.
- AveCPU
Average (system + user) CPU time of all tasks in job.
- AveCPUFreq
Average weighted CPU frequency of all tasks in job, in kHz.
- AveDiskRead
Average number of bytes read by all tasks in job.
- AveDiskWrite
Average number of bytes written by all tasks in job.
- AvePages
Average number of page faults of all tasks in job.
- AveRSS
Average resident set size of all tasks in job.
- AveVMSize
Average Virtual Memory size of all tasks in job.
- ConsumedEnergy
Total energy consumed by all tasks in job, in joules. Note: Only in case of exclusive job allocation this value reflects the jobs' real energy consumption.
- JobID
The number of the job or job step. It is in the form: job.jobstep
- MaxDiskRead
Maximum number of bytes read by all tasks in job.
- MaxDiskReadNode
The node on which the maxdiskread occurred.
- MaxDiskReadTask
The task ID where the maxdiskread occurred.
- MaxDiskWrite
Maximum number of bytes written by all tasks in job.
- MaxDiskWriteNode
The node on which the maxdiskwrite occurred.
- MaxDiskWriteTask
The task ID where the maxdiskwrite occurred.
- MaxPages
Maximum number of page faults of all tasks in job.
- MaxPagesNode
The node on which the maxpages occurred.
- MaxPagesTask
The task ID where the maxpages occurred.
- MaxRSS
Maximum resident set size of all tasks in job.
- MaxRSSNode
The node on which the maxrss occurred.
- MaxRSSTask
The task ID where the maxrss occurred.
- MaxVMSize
Maximum Virtual Memory size of all tasks in job.
- MaxVMSizeNode
The node on which the maxvsize occurred.
- MaxVMSizeTask
The task ID where the maxvsize occurred.
- MinCPU
Minimum (system + user) CPU time of all tasks in job.
- MinCPUNode
The node on which the mincpu occurred.
- MinCPUTask
The task ID where the mincpu occurred.
- NTasks
Total number of tasks in a job or step.
- ReqCPUFreq
Requested CPU frequency for the step, in kHz.
- TresUsageInAve
Tres average usage in by all tasks in job. NOTE: If corresponding TresUsageInMaxTask is -1 the metric is node centric instead of task.
- TresUsageInMax
Tres maximum usage in by all tasks in job. NOTE: If corresponding TresUsageInMaxTask is -1 the metric is node centric instead of task.
- TresUsageInMaxNode
Node for which each maximum TRES usage out occurred.
- TresUsageInMaxTask
Task for which each maximum TRES usage out occurred.
- TresUsageOutAve
Tres average usage out by all tasks in job. NOTE: If corresponding TresUsageOutMaxTask is -1 the metric is node centric instead of task.
- TresUsageOutMax
Tres maximum usage out by all tasks in job. NOTE: If corresponding TresUsageOutMaxTask is -1 the metric is node centric instead of task.
- TresUsageOutMaxNode
Node for which each maximum TRES usage out occurred.
- TresUsageOutMaxTask
Task for which each maximum TRES usage out occurred.
Performance
Executing sstat sends a remote procedure call to slurmctld. If enough calls from sstat or other Slurm client commands that send remote procedure calls to the slurmctld daemon come in at once, it can result in a degradation of performance of the slurmctld daemon, possibly resulting in a denial of service.
Do not run sstat or other Slurm client commands that send remote procedure calls to slurmctld from loops in shell scripts or other programs. Ensure that programs limit calls to sstat to the minimum necessary for the information you are trying to gather.
Environment Variables
Some sstat options may be set via environment variables. These environment variables, along with their corresponding options, are listed below. (Note: Command line options will always override these settings.)
- SLURM_CONF
The location of the Slurm configuration file.
- SLURM_DEBUG_FLAGS
Specify debug flags for sstat to use. See DebugFlags in the slurm.conf(5) man page for a full list of flags. The environment variable takes precedence over the setting in the slurm.conf.
Examples
- Display job step information for job 11 with the specified fields:
$ sstat --format=AveCPU,AvePages,AveRSS,AveVMSize,JobID -j 11 25:02.000 0K 1.37M 5.93M 9.0
- Display job step information for job 11 with the specified fields in a parsable format:
$ sstat -p --format=AveCPU,AvePages,AveRSS,AveVMSize,JobID -j 11 25:02.000|0K|1.37M|5.93M|9.0|
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