Re: [Condor-users] RANK certain attributes

[Steven Timm <timm@xxxxxxxx>]

On Mon, 1 Feb 2010, Mag Gam wrote:

> Indeed. I see where you got it from :-)
>
>
> Also, once I have the RANK setup, I am doing condor_config_val RANK on
> the execute node and I see the RANK statement but how do I see it in
> action? Is there a tool which analyzes RANK ?

There is a value CurrentRank in the machine classad but that
is not quite the same.
In practice a Rank statement can have many different values because
it combines all the different values from each job classad
with each machine classad on each negotiation cycle.
Thus it is quite easy to write a RANK statement that ends up
with value UNDEFINED and you will never be the wiser.
(All you will see is some number of machines "reject the job
for unknown reasons" in condor_q -ana).

I requested a feature like that years ago, to analyze REQUIREMENTS
and RANK statements but as far as I know they have never
implemented it yet.

Steve Timm


> On Fri, Jan 29, 2010 at 9:56 AM, Steven Timm <timm@xxxxxxxx> wrote:
> > I got this out of one of the presentations that is on the
> > condor site.  they have several tutorials.
> >
> > Steve
> >
> >
> > On Fri, 29 Jan 2010, Mag Gam wrote:
> >
> > > Steve,
> > > Thanks for this tip. I hope we document this on the NMI wiki or the
> > > manual.
> > >
> > > I will add "Department" to STARTD_ATTRS . I have preemption off
> > > therefore I don't have to worry about it.
> > >
> > >
> > > Basically, your rank statement is saying:
> > >
> > >
> > > RANK=(ifThenElse(isUndefined(Target.Department),0,ifThenElse(Target.Department=="Chemistry",1000,0)
> > >
> > > If Department is undefined the rank will be 0. Meaning everyone has
> > > the same fair rank.
> > > Else If department is defined then chemistry has 1000 of a better
> > > chance than other departments
> > >
> > > Correct?
> > >
> > > Is there an easier way to rewrite this statement :-) It looks
> > > complicated for newbie condor admins.
> > >
> > >
> > > On Thu, Jan 28, 2010 at 10:49 PM, Steven Timm <timm@xxxxxxxx> wrote:
> > > > On Thu, 28 Jan 2010, Mag Gam wrote:
> > > >
> > > > > Is it possible to place a RANK statement so condor prefers a certain
> > > > > department?
> > > > >
> > > > > For example, if I want to have
> > > > > Chemistry department to have a higher priority?
> > > > >
> > > > > In my Submit file I usually do:
> > > > > +Department="Chemistry"
> > > > Yes, but you have to add Department to STARTD_ATTRS in the config
> > > > file in order to get it considered by the negotiator in calculating
> > > > the rank.  Also you have to allow for the fact that DEPARTMENT
> > > > might not always be defined.
> > > >
> > > >
> > > > RANK=(ifThenElse(isUndefined(Target.Department),0,ifThenElse(Target.Department=="Chemistry",1000,0)
> > > >
> > > > Be aware that doing it with the RANK statement can result in
> > > > jobs of other non-chemistry departments being pre-empted to make
> > > > room for yours.  You could also define an
> > > > +AccountingGroup=chemistry.myusername
> > > > and then define GROUP_QUOTA_chemistry=nnn and/or
> > > > GROUP_PRIO_FACTOR_chemistry=nnn
> > > >
> > > > Steve Timm
> > > >
> > > >
> > > > > Any thoughts?
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> > > > --
> > > > ------------------------------------------------------------------
> > > > Steven C. Timm, Ph.D  (630) 840-8525
> > > > timm@xxxxxxxx  http://home.fnal.gov/~timm/
> > > > Fermilab Computing Division, Scientific Computing Facilities,
> > > > Grid Facilities Department, FermiGrid Services Group, Assistant Group
> > > > Leader.
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> > --
> > ------------------------------------------------------------------
> > Steven C. Timm, Ph.D  (630) 840-8525
> > timm@xxxxxxxx  http://home.fnal.gov/~timm/
> > Fermilab Computing Division, Scientific Computing Facilities,
> > Grid Facilities Department, FermiGrid Services Group, Assistant Group
> > Leader.
> >
> >
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--
------------------------------------------------------------------
Steven C. Timm, Ph.D  (630) 840-8525
timm@xxxxxxxx  http://home.fnal.gov/~timm/
Fermilab Computing Division, Scientific Computing Facilities,
Grid Facilities Department, FermiGrid Services Group, Assistant Group Leader.