Hello JP, JP Navarro wrote:
During Q2 2007 the TeraGrid will deploy new information services that will publish which high-level capabilities are available on individual TeraGrid resources, as well as information about the software and services providing each capability. The new information services are part of our next generation Coordinated TeraGrid Software and Services "CTSS" version 4 project.
The reason for this e-mail is to share aspects of our information service plans, like a generalized capability publishing entity that can encompass more than computing and storage elements, and to solicit your feedback.
Would any of the material below provide valuable GLUE 2.0 use cases?
yes, sure. This is an important contribution for both defining the use case documents and requirements for GLUE 2.0.
Should it be posted in a TeraGrid document in the GLUE 2.0 Requirements area?
I would recommend that you start collecting the material in the wiki. I've added a TeraGred page: http://forge.gridforum.org/sf/wiki/do/viewPage/projects.glue-wg/wiki/GLUEReq... We will later refine it into items in the Requirement tracker or contribution to the use case document. Cheers, Sergio
A summary of our capability, service, and software information follows.
======================= Examples of TeraGrid capabilities: Remote compute (i.e. Grid job submission) Data transfer (i.e. Grid file transfer) Data management Remote login (i.e. Grid login) Parallel application support (i.e. MPI)
Initially, we plan to publish the following capability attributes: SiteID Globally unique site ID offering the capability ResourceID Globally unique resource ID/cluster offering the capability UniqueID Globally unique capability ID Name Capability (kit) name Version Capability (kit) version supportGoal Targeted support level supportLevel Current support level statusURL URL to a monitoring status page userSupportOrganizaton Descriptive name for the user support organization userSupportContact How to contact the support organization
Sample XML: <kitRegistration UniqueID="dtf.uc.teragrid.org" timestamp="2007-02-01T04:37:10Z"> <SiteID>uc.teragrid.org</SiteID> <ResourceID>dtf.uc.teragrid.org</ResourceID> <kit UniqueID="RemoteCompute.dtf.uc.teragrid.org"> <Name>RemoteCompute</Name> <Version>1.0</Version> <supportGoal>production</supportGoal> <supportLevel>testing</supportLevel> <statusURL>http://someurl.teragrid.org/resource/kit/</statusURL> <userSupportOrganization>TeraGrid</userSupportOrganization> <userSupportContact>mailto:help@teragrid.org</userSupportContact> </kit> <kit UniqueID=DataTransfer.dft.uc.teragrid.org"> ... </kit> </kitRegistration>
Service registration ==================== Examples of TeraGrid services: GT 4 Pre-WS GRAM service GT 4 WS GRAM service GT 4 MDS service GT 4 GridFTP service gsiSSH service SRB service
Initially, we plan to publish the following service attributes: SiteID Globally unique site ID offering the service ResourceID Globally unique resource ID/cluster hosting the service UniqueID Globally unique service ID Name Human friendly service name Type Service type Version Version of service type Endpoint Service contact point
Software registration ===================== Examples of TeraGrid services: Condor 6.9.1 mpich-gm 1.2.6e build with Intel 8.1 GT 4 MDS service
Initially, we plan to publish the following software attributes: SiteID Globally unique site ID offering the software ResourceID Globally unique resource ID/cluster hosting the software UniqueID Globally unique software ID Name Software name Version Version of software HandleType Method for accessing software from Unix shell HandleKey Argument/key for the method Default Available in default login (and job) environment
There is some obvious overlap between service and software attributes. Services are available to users thru an Endpoint, software is available to users thru some Unix level access method (handle type and key). Services and software would be associated with one or more capability kits.
Of these 3 types of information, service is the only one that currently exists in GLUE, I believe. We selected a subset of the GLUE 1.3 Service attributes that the TeraGrid has a use case for.
We are also considering publishing Site information, and would choose a subset of GLUE Site attributes. If our users demanded additional compute element and storage element information, we would also adopt subsets of these entities from GLUE.
Regards,
JP Navarro ------------------------------------------------------------------------ ------ John-Paul Navarro (630) 252-1233 navarro@mcs.anl.gov http://www.mcs.anl.gov/ ~navarro TeraGrid Software Integration Univ of Chicago/Argonne Nat. Lab. GPG: 4EA9 C86B C0F0 113D 6306 98B7 3649 D6CB EFA8 4133
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