January 2008 - glue-wg - lists.ogf.org

minutes from today telecon
by Sergio Andreozzi 17 Jan '08

17 Jan '08

Dear all, the minutes of the today telecon are available here: http://forge.ogf.org/sf/wiki/do/viewPage/projects.glue-wg/wiki/PhoneMeeting… by the end of this week I will send around the new GLUE Spec + UML; we'll also align the XSD mapping as agreed, the next telecon at 1 PM GMT for continuing the discussion on AustralianGrid requirements is scheduled for Jan 22 http://forge.ogf.org/sf/wiki/do/viewPage/projects.glue-wg/wiki/PhoneMeeting… the next telecon is scheduled telecon for this Friday (18/1), 3 PM GMT http://forge.ogf.org/sf/wiki/do/viewPage/projects.glue-wg/wiki/PhoneMeeting… the agenda is still open. We could discuss the following open issues if people have updates on them: http://forge.ogf.org/sf/go/artf6080 (+ JP to ask Teragrid people about policy issues) http://forge.ogf.org/sf/go/artf6104 please, let me know about your wish. Cheers, Sergio -- Sergio Andreozzi INFN-CNAF, Tel: +39 051 609 2860 Viale Berti Pichat, 6/2 Fax: +39 051 609 2746 40126 Bologna (Italy) Web: http://www.cnaf.infn.it/~andreozzi

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GLUE Telecon reminder - tomorrow 15/1 - 1 PM GMT
by Sergio Andreozzi 16 Jan '08

16 Jan '08

Dear all, this is a gentle reminder for our tomorrow telecon: http://forge.ogf.org/sf/wiki/do/viewPage/projects.glue-wg/wiki/PhoneMeeting… Cheers, Sergio -- Sergio Andreozzi INFN-CNAF, Tel: +39 051 609 2860 Viale Berti Pichat, 6/2 Fax: +39 051 609 2746 40126 Bologna (Italy) Web: http://www.cnaf.infn.it/~andreozzi

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GLUE 2.0 draft spec comments
by Gerson Galang 16 Jan '08

16 Jan '08

Hi Sergio, I was looking at the xsd and noticed a few issues.. 1. The Service_t has declared Endpoint_Share, Service_Service and Share_Resource elements which do not get reflected in the ComputingService_t element. Shouldn't there be an ComputingEndpoint_ComputingShare, ComputingService_ComputingService, and ComputingShare_ComputingResource also in the ComputingService_t element? 2. I also found a few elements not being used anywhere in the xsd. One of them is the Policy_t which should probably be extended by the *Policy_t elements. 3. Why are the ExecutionEnviornment and ApplicationEnvironment elements declared in both the ComputingService_t and ComputingResource_t? 4. Rerunnable element has been declared twice in Job_t element 5. Shouldn't there be mapping elements for ExecutionEnvironment_ComputingShare and ApplicationEnviornment_ComputingShare. This was the issue we had with GLUE 1.2 and 1.3, there was no way to find out which queue the users should use to get their jobs running on a particular subcluster that has the compute resource requirements they are asking for and/or has the application they need to use. 6. There's no way of knowing which VOs (AdminDomain) are allowed to use the ComputingShares in the current xsd There might be others that I've missed but no big issue as schema is still in draft stage. We can talk about these issues tonight. Cheers, Gerson

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GLUE Sessions at OGF 22
by Sergio Andreozzi 11 Jan '08

11 Jan '08

Dear all, today is the deadline to request sessions for OGF 22. I've added requests for three sessions as described here: http://forge.ogf.org/sf/wiki/do/viewPage/projects.glue-wg/wiki/Participatio… we can refine the agenda of these sessions in order to allocate space for discussing implementations as well, but I would not go for more than three sessions. Moreover, at this OGF I do not plan to request a joint session on information modeling among different groups as did in the last two OGF. If you have any proposed changes, please let me know. Cheers, Sergio -- Sergio Andreozzi INFN-CNAF, Tel: +39 051 609 2860 Viale Berti Pichat, 6/2 Fax: +39 051 609 2746 40126 Bologna (Italy) Web: http://www.cnaf.infn.it/~andreozzi

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minutes from 19 Dec telecon
by Sergio Andreozzi 06 Jan '08

06 Jan '08

Dear all, I hope that all of you spent a serene XMas and New Year's Eve. Here are the notes from the last 2007 telecon: http://forge.ogf.org/sf/wiki/do/viewPage/projects.glue-wg/wiki/PhoneMeeting… At this page you can find the tentative schedule for the January telecons: http://forge.ogf.org/sf/wiki/do/viewPage/projects.glue-wg/wiki/PhoneMeetings I would like to ask Gerson to pick up 3 of them to be scheduled at late morning EU time so he can attend and discuss the requirements from the Australian Grid. The remaining calls will be scheduled at the usual 3 PM GMT. Cheers, Sergio -- Sergio Andreozzi INFN-CNAF, Tel: +39 051 609 2860 Viale Berti Pichat, 6/2 Fax: +39 051 609 2746 40126 Bologna (Italy) Web: http://www.cnaf.infn.it/~andreozzi

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RFD, WSRF-RP and GLUE: food for thought [WAS: a new software release: Semantic MDS]
by Paul Millar 03 Jan '08

03 Jan '08

Happy New Year, everyone! I received the email below from the semantic grid list. I haven't explored the S-MDS package beyond reading the documentation on their webpage, but it looks both interesting and relevant to GLUE. At the abstract level, this package provides a "semantically" queryable access (i.e., a SPARQL end-point) to some instance data. The instance data is maintained by querying WSRF Resource Properties (RPs). An overview is available here: http://pages.dbgrid.org/s-mds/dist/doc/background/architecture.htm [in the diagram, they show RPs as local to the target system. I guess this is a deployment decision, so might not be a requirement] If this package were extended to expose GLUE data, then one could also use the same SPARQL end-point to query GLUE metadata. An alternative approach would be to define an WSRF-RP binding for GLUE. I've skimmed through the WSRF-RP spec (v1.2 draft-4) and, given a suitable GLUE/XML binding, this doesn't look too hard: a simple encapsulation through a suitable GLUE XML-namespace should work. The S-MDS package has an "RP/ontology mapping algorithm" that (I believe) automatically converts the WSRF-RP into some OWL ontology description of the WSRF-RP. Provided this mapping algorithm works for GLUE/WSRF-RP (i.e., GLUE/XML encapsulated within WSRF-RP SOAP), this should "just work" :-) This would be an interesting extension of the current work on an XML binding. Apart from the application within MDS, we might get an RDF/OWL binding for free! Cheers, Paul. ---------- Forwarded Message ---------- Subject: [SEM-GRD] A new software release: Semantic MDS TP1 Date: Sunday 23 December 2007 From: "Said Mirza" <mirza(a)ni.aist.go.jp> To: gt-user(a)globus.org, sem-grd(a)gridforum.org Hi, We are pleased to announce the release of our new software Semantic MDS (S-MDS) TP1. S-MDS is a Semantic Metadata Discovery and Monitoring system implemented on the top of the Globus Toolkit 4 (GT4). It is an information system that uses semantic web technologies to semantically describe grid resources (services) so that they can be more efficiently and effectively discovered and monitored. The software does not require any change to the (targeted/monitored) grid resources so that it can "peacefully" work with your grid resources. S-MDS harvests many semantic web technologies but it does not require users to be familiar with the technologies. It provides the following management and query tools for supporting the users. * S-MDS wizard and tools for easy creating, enriching and registering the semantic metadata. * A GUI-based query client for easy constructing a (SPARQL) query. This tool also includes a monitoring client that periodically pulls data from the repository and presents the data in a graphical view. For more information and download please visit: http://wiki.dbgrid.org/index.php?smds Best Regards, Said Mirza On behalf of the Data Grid Team, Grid Technology Research Center, AIST - Japan -- sem-grd mailing list sem-grd(a)ogf.org http://www.ogf.org/mailman/listinfo/sem-grd -------------------------------------------------------

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