[gin-info] Possible list of subset data for info interop

[Jennifer M. Schopf]

Thomas-

    i don't think we want to go down the path of UML here - i really think 
we want to stay at the very high level of simply deifning a set of 
attributes sites should communicate. UML implies structure and other things 
that we do NOT want to get into with this group - we're going tfor low 
hanging fruit, not making changes wherever we can.

I would be much more comfortable coming up with a simple list of attributes 
everyone could agree on - which is why i sent the list i did. If you want 
to add things in, that's great. If you think something should be removed, 
please make a case.

I understand that formally, you're correct, UML is a great way to get 
agreement here. And maybe we we cross the path of CIM and GLUE schema 
agreement discussions we'll need this, but right now i'm not wearing a GLUE 
schema hat, i'm wearing an implementers hat and i just want to know what 
data each site should advertise in whatever way they can.

   -jen



At 17:18 01/03/2006, JP Navarro wrote:
>The other slightly subtle notion is that there can be an arbitrary
>number of subclusters and individual nodes can belong to multiple
>subclusters.
>
>
>On Mar 1, 2006, at 11:15 AM, Dr. Thomas Soddemann wrote:
>
>>Hi JP,
>>
>>in principle, everything is a question of how the information is
>>queried, eg.
>>//Cluster/Subcluster[Host[@memtotal='64GBytes']]
>>
>>And yes, I forgot the subclusters in the UML diagram. I sent a
>>message like 20min ago, but it has not yet appeared on the list.
>>The class Cluster would simply have a 1-n relation to itself.
>>
>>Thomas
>>
>>JP Navarro wrote:
>>>Thomas,
>>>
>>>Our (TeraGrid) definition of a subcluster is a homogeneous set of
>>>resources,
>>>so moving certain h/w characteristics to the subcluster level will
>>>enable
>>>users to select subclusters based on their characteristics without
>>>having
>>>to sift thru the properties of each subcluster node.
>>>
>>>Users can submit to a subcluster using queues and/or node properties.
>>>
>>>JP
>>>
>>
>><Thomas.Soddemann.vcf>
>
>
>Dr. Jennifer M. Schopf
>Scientist                              eInfrastructure Policy Advisor
>Distributed Systems Lab       National eScience Centre and JISC
>Argonne National Laboratory  The University of Edinburgh
>jms at mcs.anl.gov                 jms at nesc.ac.uk
>http://www.mcs.anl.gov/~jms http://homepages.nesc.ac.uk/~jms
>