Re: [Condor-users] Mutual ranking in matchmaking

[Todd Tannenbaum <tannenba@xxxxxxxxxxx>]

On Tue, Oct 03, 2006 at 12:54:32PM -0400, Gabriel Mateescu wrote:
> 
> 
> My question is the following:
> 
>   Does Condor-G use resource ranking (loop (1)),  
>   or does it also use job ranking (loop (2))? 
>   In other words, does it rank the resources for 
>   a jobs (1), or the jobs for a resource (2), or both?
> 

IIRC: Unlike standard/vanilla/java universe, the grid universe currently
only honors job ranking.  So with grid universe, feel free to use
a rank expression in the job ad, but don't bother w/ a rank expression
in the resource ad.  The reason is resource rank is currently reliant
upon resource preemption and Condor's claiming protocol as implemented
in the condor_startd.  Since there is no "startd" service per se with
grid universe (aka Condor-G or Condor-C) matchmaking, resource rank
is not helpful.

Note -- there is a good chance this will improve in the v6.9 series,
more news as things happen....

regards,
Todd