[slurm-users] [External] Re: actual time of start (or finish) of a job

[Florian Zillner]

Hi,

note that times reported by sacct may differ from the net times. For example, imagine a test job like this:
date
sleep 1m
date

sacct reports:
$ sacct -j 225145 -X -o jobid,start,end
JobID                      Start                 End
------------ ------------------- -------------------
225145       2023-02-20T17:31:12 2023-02-20T17:32:30

Whereas:
cat *out.225145
Mon Feb 20 17:31:29 CET 2023
Mon Feb 20 17:32:29 CET 2023

Sometimes these extra few seconds matter. So if you're looking for net runtimes, I'd suggest to ask the user to include a date command here and there in the submit script.

Cheers,
Florian
________________________________
From: slurm-users <slurm-users-bounces at lists.schedmd.com> on behalf of Davide DelVento <davide.quantum at gmail.com>
Sent: Thursday, 16 February 2023 01:40
To: Slurm User Community List <slurm-users at lists.schedmd.com>
Subject: [External] Re: [slurm-users] actual time of start (or finish) of a job

Thanks, that's exactly it.
I naively assumed that the '-l" in sacct provided "everything" (given
how long and unwieldy it is, but I noticed now that it isn't).
Sorry for the noise!

On Wed, Feb 15, 2023 at 5:32 PM Joseph Francisco Guzman
<Joseph.F.Guzman at nau.edu> wrote:
>
> Hi Davide,
>
> I would use the Start and End fields with the sacct command. Something like this: "sacct -j jobid1,jobid2 -X -P -o jobid,start,end".
>
> Were you able to take a look at the sacct manual page outlines what all of the different fields mean? Here's a link to the web version: https://apc01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fslurm.schedmd.com%2Fsacct.html&data=05%7C01%7Cfzillner%40lenovo.com%7C15763a6fc38f499923ff08db0fb6a408%7C5c7d0b28bdf8410caa934df372b16203%7C0%7C0%7C638121049348286424%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=unxmMQ7DKiu5WGEiAZspSKoHssaaJy3zPvqVzOYDNZM%3D&reserved=0.
>
> Best,
>
> Joseph
>
> --------------------------------------------------------------
> Joseph F. Guzman - ITS (Advanced Research Computing)
>
> Northern Arizona University
>
> Joseph.F.Guzman at nau.edu
>
> ________________________________
> From: slurm-users <slurm-users-bounces at lists.schedmd.com> on behalf of Davide DelVento <davide.quantum at gmail.com>
> Sent: Wednesday, February 15, 2023 5:18 PM
> To: slurm-users at schedmd.com <slurm-users at schedmd.com>
> Subject: [slurm-users] actual time of start (or finish) of a job
>
> I have a user who needs to find the actual start (or finish) time of a
> number of jobs.
> With the elapsed field of sacct start or finish become equivalent for
> his search.
>
> I see that information in /var/log/slurm/slurmctld.log so Slurm should
> have it, however in sacct itself that information does not seem to
> exist, and with all the queries we tried Google always thinks we are
> looking for something else and never returns an actual answer.
>
> If this was a one-off I could do it for him, but he needs to script it
> for his reasons and I don't want to run his script as root nor give
> him access to the log files forever.
>
> Is there a way to find this information?
>
> Thanks
>

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