[slurm-users] [Slurm 18.08.4] sacct/seff Inaccurate usercpu values

[Henkel, Andreas]

Bad news Dir the cgroup-Users, seems like the bug is „resolved“ by the site switching to task/Linux instead :-(

> Am 09.01.2019 um 22:06 schrieb Christopher Benjamin Coffey <Chris.Coffey at nau.edu>:
> 
> Thanks... looks like the bug should get some attention now that a paying site is complaining:
> 
> https://bugs.schedmd.com/show_bug.cgi?id=6332
> 
> Thanks Jurij!
> 
> Best,
> Chris
> 
> —
> Christopher Coffey
> High-Performance Computing
> Northern Arizona University
> 928-523-1167
> 
> 
> On 1/9/19, 7:24 AM, "slurm-users on behalf of Paddy Doyle" <slurm-users-bounces at lists.schedmd.com on behalf of paddy at tchpc.tcd.ie> wrote:
> 
>>    On Wed, Jan 09, 2019 at 12:44:03PM +0100, Bj?rn-Helge Mevik wrote:
>> 
>> Paddy Doyle <paddy at tchpc.tcd.ie> writes:
>> 
>>> Looking back through the mailing list, it seems that from 2015 onwards the
>>> recommendation from Danny was to use 'jobacct_gather/linux' instead of
>>> 'jobacct_gather/cgroup'. I didn't pick up on that properly, so we kept with
>>> the cgroup version.
>>> 
>>> Is anyone else still using jobacct_gather/cgroup and are you seeing this
>>> same issue?
>> 
>> Just a side note: In last year's SLUG, Tim recommended the following
>> settings:
>> 
>> proctrack/cgroup, task/cgroup, jobacct_gather/cgroup
>> 
>> So the recommendation for jobacct_gather might have changed -- or Danny
>> and Tim might just have different opinions. :)
> 
>    Interesting... the cgroups documentation page still says the performance of
>    jobacct_gather/cgroup is worse than jobacct_gather/linux. Although
>    according to the git commits of doc/html/cgroups.shtml, that was added to
>    the page in Jan 2015, so yeah maybe things have changed again. :)
> 
>    https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fslurm.schedmd.com%2Fcgroups.html&data=02%7C01%7Cchris.coffey%40nau.edu%7C2e47d9c9330646a8245f08d6763e2346%7C27d49e9f89e14aa099a3d35b57b2ba03%7C0%7C0%7C636826406595983378&sdata=i634oCV0NeO6DvBos05gM3iF7YxI%2FJC%2BZC7MJ222SW8%3D&reserved=0
> 
>    In that case, either set 'JobAcctGatherFrequency=task=0' or wait for the
>    bug to be fixed.
> 
>    Paddy
> 
>    -- 
>    Paddy Doyle
>    Trinity Centre for High Performance Computing,
>    Lloyd Building, Trinity College Dublin, Dublin 2, Ireland.
>    Phone: +353-1-896-3725
>    https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.tchpc.tcd.ie%2F&data=02%7C01%7Cchris.coffey%40nau.edu%7C2e47d9c9330646a8245f08d6763e2346%7C27d49e9f89e14aa099a3d35b57b2ba03%7C0%7C0%7C636826406595983378&sdata=S2PCubxVUifigrvyEnmFdrQb5G9Ak4roM2FJtUxiM%2Fw%3D&reserved=0
> 
> 
>