Re: [HTCondor-users] Mixing up 'is' and 'isnt'?

[Todd Tannenbaum <tannenba@xxxxxxxxxxx>]

Hi Carsten,

Re the below, ClassAds expressions can evaluate to one of four values: True, False, Error, or Undefined.   Note that "Defined" is not one of these four values.  So instead of writing clauses like "... && TotalGpus isnt defined", try "... && TotalGpus is Undefined" instead.  Some people find using the isUndefined() function more intuitive, for instance "... && isUndefined(TotalGpus)".

Hope the above helps,
Todd


On 2/15/2021 5:06 AM, Carsten Aulbert wrote:

> Hi,
>       
>       
>       even though I am beyond my first coffees, I do not get this
>       output:
>       
>       
>       condor_status -af:h TotalGpus Gpus Machine -constraint
>       "PartitionableSlot is true && TotalGPUs isnt defined"
>       
>       
>       TotalGpus Gpus Machine
>       
>       2         0    a3102.atlas.local
>       
>       1         1    a3104.atlas.local
>       
>       1         1    a3108.atlas.local
>       
>       1         1    a3112.atlas.local
>       
>       1         0    a3116.atlas.local
>       
>       1         1    a3120.atlas.local
>       
>       1         0    a3124.atlas.local
>       
>       8         2    a3128.atlas.local
>       
>       1         1    a3217.atlas.local
>       
>       
>       condor_status -af:h TotalGpus Gpus Machine -constraint
>       "PartitionableSlot is true && TotalGPUs is defined"
>       
>       
>       TotalGpus Gpus Machine
>       
>       undefined undefined a3140.atlas.local
>       
>       undefined undefined a3212.atlas.local
>       
>       undefined undefined a3226.atlas.local
>       
>       undefined undefined a3227.atlas.local
>       
>       
>       Since the two groups are correctly identified but are just inverse
>       to my exceptions, can someone please enlighten me, what I am
>       missing?
>       
>       
>       Thanks a lot in advance
>       
>       
>       Carsten
>       
>       
>       PS: This is still on Condor 8.8.9, though release noted up to
>       8.8.12 does not seem to change anything in this respect.
>