Re: [HTCondor-users] comparison operators in job transforms/routes

[Thomas Hartmann <thomas.hartmann@xxxxxxx>]

Hi John,

ah - many thanks for the clarification.

yes, the confused parser confused me as well - I had been testing with 
1core jobs where the expression seemed to work, but everything went 
haywire, when I actually tried mcores ;)

Cheers and thanks,
  Thomas


On 29/09/2021 16.50, John M Knoeller wrote:
> The transform language allows only  true, false, 0, non-zero, and 
> defined after if
>
> You need to use EVALMACRO to evaluate a more complex conditional 
> expression and resolve it to a simple literal  true, false, 0, or 
> non-zero value like this
>
> EVALMACRO more_than_2_cpus = (RequestCpus ?: 1) > 2
> if $(more_than_2_cpus)
>      # conditional statements
> endif
>
> I'm a bit surprised that you don't see an error message for all cases, 
> the only time it is valid to use =
> on the same line as the if is when doing version comparison, so I'm 
> guessing that the parser is confused.
>
> -tj
> ------------------------------------------------------------------------
> *From:* HTCondor-users <htcondor-users-bounces@xxxxxxxxxxx> on behalf of 
> Thomas Hartmann <thomas.hartmann@xxxxxxx>
> *Sent:* Wednesday, September 29, 2021 8:15 AM
> *To:* HTCondor-Users Mail List <htcondor-users@xxxxxxxxxxx>
> *Subject:* [HTCondor-users] comparison operators in job transforms/routes
> Hi all,
>
> I am trying to write a job transform, where I would like to make a case
> comparison like [1].
>
> My problem is right now, that the ad's value comparison fails for the
> condition with
>
>      > job_transforms: ERROR applying transform DESYMCOREReweight
> (err=-3,rval=-1,msg=RequestCpus >= 2 is not a valid if condition)
>
> I tried $(var) like `if $(RequestCpus) >= 2` as well, but the ad (to be
> evaluated) seems to be too compound for being a <simple condition>
>
>     > job_transforms: ERROR applying transform DESYMCOREReweight
> (err=-3,rval=-1,msg=$(RequestCpus) >= 2 is not a valid if condition
> because complex conditionals are not supported)
>
> assuming that syntax is the same for job transforms/routes with 8.9+ and
> submissions [2]
>
> Interestingly, no error is thrown when the integer of requested cores
> and the integer in the comparison are the same, i.e., `RequestCpus >= 3`
> with `request_cpus = 3`.
>
> Maybe I am missing something obvious here, but in principle it should
> work to do comparison operations in job transforms conditionals, or?
>
> Installed packages are [3]
>
> Cheers,
>     Thomas
>
>
> [1]
> JOB_TRANSFORM_NAMES = $(JOB_TRANSFORM_NAMES), MCOREReweight
>
> JOB_TRANSFORM_MCOREReweight @=end
>
> if RequestCpus >= 2
>     EVALSET MYAcctGroup = $(MYAcctGroup).mcore
> else
>     EVALSET MYAcctGroup = $(MYAcctGroup).score
> endif
>
> @end
>
>
> [2]
> https://htcondor.readthedocs.io/en/latest/users-manual/submitting-a-job.html#using-conditionals-in-the-submit-description-file 
> <https://htcondor.readthedocs.io/en/latest/users-manual/submitting-a-job.html#using-conditionals-in-the-submit-description-file>
> https://htcondor.readthedocs.io/en/latest/misc-concepts/transforms.html 
> <https://htcondor.readthedocs.io/en/latest/misc-concepts/transforms.html>
>
>
> [3]
> condor-9.0.6-1.el7.x86_64
> condor-boinc-7.16.16-1.el7.x86_64
> condor-classads-9.0.6-1.el7.x86_64
> condor-externals-9.0.6-1.el7.x86_64
> condor-procd-9.0.6-1.el7.x86_64
> htcondor-ce-5.1.1-1.el7.noarch
> htcondor-ce-apel-5.1.1-1.el7.noarch
> htcondor-ce-bdii-5.1.1-1.el7.noarch
> htcondor-ce-client-5.1.1-1.el7.noarch
> htcondor-ce-condor-5.1.1-1.el7.noarch
> htcondor-ce-view-5.1.1-1.el7.noarch
> python2-condor-9.0.6-1.el7.x86_64
> python3-condor-9.0.6-1.el7.x86_64
>
>
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