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 UserCPUTimeElapsed TotalCPU NCPUS
- -- ---
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 ac
Thanks for the exaplnation Chris. I will read cgroup.
Regards,
Mahmood
On Sun, Mar 18, 2018 at 7:43 AM, Chris Samuel wrote:
> On Sunday, 18 March 2018 5:46:50 AM AEDT Mahmood Naderan wrote:
>
>> Excuse me but I think that is wrong.
>
> I think we're talking at cross-purposes, I thought you we
On Sunday, 18 March 2018 5:46:50 AM AEDT Mahmood Naderan wrote:
> Excuse me but I think that is wrong.
I think we're talking at cross-purposes, I thought you were puzzled about why
CPU time was less than the total time in a general context (not purely within
Slurm).
> "Elapsed" is the wall clo
Excuse me but I think that is wrong. "Elapsed" is the wall clock time.
"UserCPU" should be "NCPUS*Elapsed". The "CPUTime" is then not clear
for me. If that is "USERCPU+I/O" and etc, then it should be "user+sys"
as reported by time command. However, in my example the "CPUTime" is
01:04:28 while "use
On Thursday, 15 March 2018 1:05:16 AM AEDT Mahmood Naderan wrote:
> Slurm also uses time output. But the CPUTime is not clear for me.
CPU time will generally be less than wall time because it doesn't include time
spent waiting for I/O, etc.
--
Chris Samuel : http://www.csamuel.org/ : Melb
I ran again with time command in front of g09.
The console output is
Wed Mar 14 09:15:58 EDT 2018
real32m14.136s
user53m56.946s
sys2m17.855s
Wed Mar 14 09:48:12 EDT 2018
So the wall clock time is 32 minutes roughly.
g09 says
Job cpu time: 0 days 0 hours 47 minutes 56.0 seco
Gaussian reports CPU time, sacct reports wall time here. Was Gaussian setup to
run with 2 CPU cores?
Best,
Shenglong
> On Mar 14, 2018, at 8:04 AM, Mahmood Naderan wrote:
>
> Hi,
> I see that slurm reports a 35 min duration for a completed job (g09) like this
>
> [mahmood@rocks7 ~]$ sacct -j
