Re: [HTCondor-users] Official documentation on interaction between quotas and (user) priorities?

["Beyer, Christoph" <christoph.beyer@xxxxxxx>]

Hi Jeff,

yes within one quota group the available ressources are sorted following the priorities of the  members of that group  .... 

Best
christoph

-- 
Christoph Beyer
DESY Hamburg
IT-Department

Notkestr. 85
Building 02b, Room 009
22607 Hamburg

phone:+49-(0)40-8998-2317
mail: christoph.beyer@xxxxxxx

----- UrsprÃngliche Mail -----
Von: "Jeff Templon" <templon@xxxxxxxxx>
An: "HTCondor-Users Mail List" <htcondor-users@xxxxxxxxxxx>
Gesendet: Mittwoch, 12. November 2025 21:49:13
Betreff: Re: [HTCondor-users] Official documentation on interaction between quotas and (user) priorities?

Hi Christoph, 

I think this says that priority only matters for jobs with equal quotas, correct?  

JT


> On 12 Nov 2025, at 12:19, Beyer, Christoph <christoph.beyer@xxxxxxx> wrote:
> 
> Hi Jeff,
> 
> at least in our setup we use (hierarchical group quotas) the quota of the group you are submitting is limiting the overall availability of slots. Inside the group the priority based on previous usage (fairshare) will takeover and decide which users jobs to  prefere - does this make any snese for you ? 
> 
> Best
> christoph
> 
> 
> -- 
> Christoph Beyer
> DESY Hamburg
> IT-Department
> 
> Notkestr. 85
> Building 02b, Room 009
> 22607 Hamburg
> 
> phone:+49-(0)40-8998-2317
> mail: christoph.beyer@xxxxxxx
> 
> Von: "Jeff Templon" <templon@xxxxxxxxx>
> An: "HTCondor-Users Mail List" <htcondor-users@xxxxxxxxxxx>
> Gesendet: Mittwoch, 12. November 2025 12:10:07
> Betreff: [HTCondor-users] Official documentation on interaction between quotas and (user) priorities?
> 
> Hi,
> See the subject - Iâm looking into setting up scheduling here in line with group power allocations, and itâs unclear to me what the interactions are between user priorities and group priorities / quotas; they both could be used to to what I want, I think â it depends on what the interactions are between the two.  The documentation is clear on the quotas and on the user priorities, what is not clear is the interaction between the two.  The best I could find is this passage
> 
> After the condor_negotiator calculates the quota assigned to each group, possibly adding in surplus, it then negotiates with the condor_schedd daemons in the system to try to match jobs to each group. It does this one group at a time. By default, it goes in âstarvation group order.â That is, the group whose current usage is the smallest fraction of its quota goes first, then the next, and so on. 
> 
> It sounds like the quota here take precedence over priority settings, but itâs not explicit.
> 
> All pointers to the relevant documentation appreciated.
> 
> JT
> 
> 
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