[Mauiusers] lower priority jobs running first?

[Greenseid, Joseph M.]

Backfill is enabled.  The higher priority jobs are much shorter in requested walltime (1 hour vs 8).  Requested resources in terms of number of nodes in this example/test is the same.  
--Joe


----- Original Message -----
From: George Wm Turner <turnerg at indiana.edu>
To: Greenseid, Joseph M.
Cc: mauiusers at supercluster.org <mauiusers at supercluster.org>
Sent: Tue Sep 02 16:06:29 2008
Subject: Re: [Mauiusers] lower priority jobs running first?

is backfill enabled and are these small jobs?

george wm turner
high performance systems
812 855 5156



On Sep 2, 2008, at 4:14 PM, Greenseid, Joseph M. wrote:

> i have a situation with my setup where i get the following from  
> `diagnose -p`:
>
> diagnosing job priority information (partition: ALL)
>
> Job                    PRIORITY*   Cred(Class)    FS(Group)   
> Serv(QTime:XFctr)
>              Weights   --------       1(    1)   500(    1)      
> 1(    1:  100)
>
> 552                      -39900     0.0(  0.0)  99.7(-4000)    
> 0.3(  0.2:100.1)
> 553                      -39900     0.0(  0.0)  99.7(-4000)    
> 0.3(  0.2:100.1)
> 554                      -14899    38.4(25000)  61.4(-4000)    
> 0.2(  0.2:100.4)
> 555                      -14899    38.4(25000)  61.4(-4000)    
> 0.2(  0.2:100.3)
>
> Percent Contribution   --------    23.8( 23.8)  76.0( 76.0)    
> 0.2(  0.0:  0.2)
> these lower priority (-39900) jobs will always run sooner than the  
> higher priority jobs (-14899).  why?  why wouldn't higher priority  
> jobs run first?
>
> thanks,
> --Joe
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