Hi Chris,
I have been confused with the cpu runtime values in the sacct. For a
multinode mpi job, I see these values
[mahmood@rocks7 ~]$ sacct --format=jobid,user,cputime,elapsed,totalcpu,ncpus
JobID User CPUTime Elapsed TotalCPU NCPUS
------------ --------- ---------- ---------- ---------- ----------
24 mahmood 23:01:25 00:11:25 22:57:37 121
24.batch 06:05:20 00:11:25 06:04:16 32
24.0 00:34:15 00:11:25 16:53:21 3
The questions are:
1- Why cputime is greater than totalcpu?
2- Considering cputime, the sum of 24.batch and 24.0 is not equal to 24. Why?
Thanks for your help.
Regards,
Mahmood
On Sun, Mar 18, 2018 at 12:08 PM, Chris Samuel <ch...@csamuel.org> wrote:
> On Sunday, 18 March 2018 4:30:34 PM AEDT Mahmood Naderan wrote:
>
>> Thanks for the exaplnation Chris. I will read cgroup.
>
> My pleasure! The Slurm docs on it are here:
>
> https://slurm.schedmd.com/cgroups.html
>
> I've been using cgroups for all three abilities (process tracking, task
> management and accounting) since 2013 and found it works really well.
>
> All the best,
> Chris
> --
> Chris Samuel : http://www.csamuel.org/ : Melbourne, VIC
>
>
