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

[Dr. Thomas Soddemann]

Hi Jen,

just a few thoughts on your suggestions:

The GLUE schema addresses ComputingElements (CEs) rather than queues. 
IMHO, queues are bound to a specific LRMS. A grid resource management 
system like Globus GRAM or UNICORE NJS/TSI can make use of a queue but 
its details should not be in the queue definition (a queue does not need 
to know that it is used by a GRAM). In the GLUE case of CEs the 
definition makes sense since a CE can be seen as a stand-alone unit.
I do not see that the GLUE schema expresses here, what we may need -- a 
description of queues, managed by local resource management systems.

- Another tiny thing, do we really need the total counts in the 
cluster/subcluster data? A simple XPath expression would give it.
- SMPsize should be in the host definition, shouldn't it? Same for OS 
and memory.
- Storage information should be allowed for host and cluster.

What do you (or the GLUE people) mean with the unique ids? If the 
hostname is its DN or DNS entry name it certainly is unique. Does a 
queue really has to have a unique id? Same for the clusters.

Cheers,
Thomas

P.S.: Maybe we should put the things into an UML diagram in order to 
have a clearer view of the whole picture.

Jennifer M. Schopf wrote:
> Hello-
>
> At the grid interop session in GGF i said i'd circulate a document 
> describing the TeraGrid deployment of MDS4 which included a possible 
> starting point of a list of attributes that we could ask resources to 
> advertise. The document is attached (any comments or interest in 
> having your own MDS4 deployment let me know!) The (possible) minimal 
> list of attributes is:
>
> Queue Data:
> Queue name
> Unique queue ID
> GRAM version
> GRAM host name
> GRAM port/url
> LRMS type LL
> LRMS version 3.2.1
> Total CPUs 128
> Free CPUs 16
> Queue status ...
> Total jobs 4
> Running jobs 4
> Waiting jobs 0
> Policy – max wall clock time
> Policy – max CPU time
> Policy – max total jobs
> Policy – max running jobs
>
> cluster/subcluster data:
> Type (cluster/Subcluster)
> Cluster/subcluster Name
> cluster/subcluster Unique ID
> Processor type
> Processor speed
> Total memory
> Operating system
> SMP size
> Total nodes
> Storage device name
> Storage device size
> Storage device available space
>
> Host data
> Host Name
> Host Unique ID
> Node properties
>
> Note that about 95% of this is currently available as mapped into the 
> GLUE schema, there are a couple additions that aren't (total nodes and 
> node properties, maybe one other, not sure).
>
> -jen
>
>
>
>
>
>
>
> 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

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