[slurm-users] Job runtime

[Mahmood Naderan]

I ran again with time command in front of g09.

The console output is

Wed Mar 14 09:15:58 EDT 2018
real    32m14.136s
user    53m56.946s
sys    2m17.855s
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 seconds.

If g09 reports user time, then that is different from the time command
(about 5 min difference). On the other hand, slurm says

[mahmood at rocks7 ~]$ sacct -j 32 --format=elapsed,ncpus,cputime,UserCPU
   Elapsed      NCPUS    CPUTime    UserCPU
---------- ---------- ---------- ----------
  00:32:14          2   01:04:28  53:56.955
  00:32:14          2   01:04:28  53:56.955


Slurm also uses time output. But the CPUTime is not clear for me.

Regards,
Mahmood




On Wed, Mar 14, 2018 at 8:45 AM, Shenglong Wang <sw77 at nyu.edu> wrote:
> Gaussian reports CPU time, sacct reports wall time here. Was Gaussian setup to run with 2 CPU cores?
>
> Best,
> Shenglong
>