David:

As you know JSDL pretty well (certainly better than I, sorry to say), can you comment on whether the GT4 GRAM JDL (described at http://www-unix.globus.org/toolkit/docs/development/3.9.4/execution/wsgram/schemas/mjs_job_description.html) can be rendered in JSDL?

If the answer is yes, then I'd say first of all "good" and second "well that means we have work to do in terms of defining a standard vocabulary."

One more thought regarding your earlier email concerning scoping: you proposed that we take delegation off the table. However, one reason for delegating credentials is so that the job manager host can initiate staging commands.

Ian.

At 10:32 AM 1/19/2005 +0000, David Snelling wrote:

Ian,

On 19 Jan 2005, at 1:32, Ian Foster wrote:

This seems reasonable to me at first glance.

The interesting thing is that there is not that much there, if one assumes WSRF/WSN.

Yes I know. If you assume WSRF and WSN and take an aggressive line we have a minimalist solution:

MJobFactory_create (JSDL_Doucment, Initial_TT) -> EPR

MJob implements WSRF-RP, WSRF-LT, WS-BN
MJob_status as a resource property

And you're done.

Subscribe to value change notification on 'status' and you pretty much can do all of GRAM, minus the Globus specific bits. I don't think I would go for this minimal, but it was an interesting exercise. NB: I know JSDL pretty well and there's a lot there, which helps.

--

Take care:

    Dr. David Snelling < David . Snelling . UK . Fujitsu . com >
    Fujitsu Laboratories of Europe
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_______________________________________________________________
Ian Foster www.mcs.anl.gov/~foster Math & Computer Science Div. Dept of Computer Science Argonne National Laboratory The University of Chicago Argonne, IL 60439, U.S.A. Chicago, IL 60637, U.S.A. Tel: 630 252 4619 Fax: 630 252 1997 Globus Alliance, www.globus.org