Re: [Condor-users] Defining Minimum and Maximum Memory in Dynamic Provisioning

[Matthew Farrellee <matt@xxxxxxxxxx>]

On 08/10/2011 02:52 PM, Edier Zapata wrote:
> Thank you matt, more questions and results inLine.
>
> On Wed, Aug 10, 2011 at 11:17 AM, Matthew Farrellee <matt@xxxxxxxxxx
> <mailto:matt@xxxxxxxxxx>> wrote:
>
>     On 08/10/2011 12:02 PM, Edier Zapata wrote:
>
>         Good morning,
>           I've been using Dynamic Provisioning and I works perfect when
>         you add
>         the request directives in the submit file, but if you miss the
>         request_memory your job only get 1MB of RAM,
>         1. Is there a way to define a Minimum value when no Memory is
>         request?
>
>
>     Only on the submitting side right now. I considered minimums on the
>     execute side, but never worked it out completely.
>
>     # Base RequestMemory to use if not provided by user
>     RequestMemory = 1024
>     SUBMIT_EXPRS = RequestMemory
>
>
> This one works perfect.
>
>         2. My system have this RAM: Server 1: 24036 Server2 and 3:
>         32057, How
>         can I add a directive to prevent request_memory outside range, I
>         mean,
>         If someone add: request_memory = 35000 I want that Condor
>         changes this
>         value to $(DETECTED_MEMORY) automaticaly, Is this possible?
>
>
>     request_memory (translated into the RequestMemory attribute on your
>     job) is actually an expression, not just an integer. You could,
>     request_memory = ifThenElse(TARGET.Memory < 35000, TARGET.Memory, 35000)
>     or something like that anyway.
>
> This one didn't, I want a rule like the one above, but I typed this in
> the condor_config.local and when I submit a job with:
> request_memory=64000 it don't change that value. Later I'd change
> Request_Memory to RequestMemory and neither work
>
> My Condor_Config.local Added Lines:
> # No Request_Memory in submitFile, assign 64MB
> RequestMemory=64
>
> # Request_Memory> Than Real Memory of nodes, then change it to Nodes RAM
> RequestMemory=IfThenElse(TARGET.Memory<32058,TARGET.Memory,32057)
>
> # Update Exprs
> SUBMIT_EXPRS=RequestMemory

The value in config (you're using condor_config.local? come into the 
config.d/ world, see LOCAL_CONFIG_DIR) is overridden by what the user 
puts in their submit file, which is why (1) works.

You can either have your users set RequestMemory = ifThenElse(...) 
themselves, or some up with a schema so they set something like 
+MyRequestMemory = 123 and they get a default 
RequestMemory=ifThenElse(TARGET.Memory < MY.MyRequestMemory, 
TARGET.Memory, MY.MyRequestMemory).

Best,


matt