Re: [HTCondor-users] CPU share handling changed with 8.6.5-1?

[Michael Pelletier <Michael.V.Pelletier@xxxxxxxxxxxx>]

Hey Tom,

I'm not seeing this under 8.6.6-1:

[condor_data_condor_execute_slot1_1@...]# condor_q 2361 -af requestcpus
32
[condor_data_condor_execute_slot1_1@...]# cat cpu.shares
3200

$CondorVersion: 8.6.6 Sep 12 2017 BuildID: 416237 $
$CondorPlatform: x86_64_RedHat7 $


	-Michael Pelletier.


> -----Original Message-----
> From: HTCondor-users [mailto:htcondor-users-bounces@xxxxxxxxxxx] On Behalf
> Of Thomas Hartmann
> Sent: Thursday, September 28, 2017 11:35 AM
> To: HTCondor-Users Mail List <htcondor-users@xxxxxxxxxxx>
> Subject: [External] [HTCondor-users] CPU share handling changed with
> 8.6.5-1?
> 
> Hi all,
> 
> after updating to ~8.6.5 it seems that the scaling fractions for the CPU
> share cgroup has changed.
> 
> So far I had assumed the CPU share to be requested CPU x 100 for the jobs'
> child groups with the condor parent share normally equivalent to the
> global share.
> Now the basic scaling factor within the child cgroups seems to be 1024,
> or?
> 
> Might also be a local problem at us - as also explicit 8core jobs now end
> up with the same CPU share of 1024 as single core jobs but not 8192 [1]?
> 
> 
> Cheers,
>   Thomas
> 
> 
> [1]
>  353503 ?        Ss     0:00      \_ condor_starter -f -a slot1_3
> grid-arcce0.desy.de
>  369890 ?        S      0:00      |                           \_
> condor_starter -f -a slot1_1 vocms0250.cern.ch
>  370188 ?        S      0:00      |                           \_
> condor_starter -f -a slot1_2 vocms0250.cern.ch
>  371000 ?        S      0:00      |                           \_
> condor_starter -f -a slot1_3 vocms0250.cern.ch
>  371002 ?        S      0:00      |                           \_
> condor_starter -f -a slot1_4 vocms0250.cern.ch
>  371135 ?        S      0:00      |                           \_
> condor_starter -f -a slot1_7 vocms0250.cern.ch
>  371137 ?        S      0:00      |                           \_
> condor_starter -f -a slot1_8 vocms0250.cern.ch
>  371138 ?        S      0:00      |                           \_
> condor_starter -f -a slot1_5 vocms0250.cern.ch
>  371139 ?        S      0:00      |                           \_
> condor_starter -f -a slot1_6 vocms0250.cern.ch
> 
> > cat
> /cgroup/cpu/htcondor/condor_var_lib_condor_execute_slot1_3\@batch0930.desy
> .de/cpu.shares
> 
> 1024