[ogsa-hpcp-wg] [SAGA-RG] Hosted applications

[Steven Newhouse]

There is also a bit of overlap here with the Application Template done in the HPC Profile WG.

http://forge.gridforum.org/sf/docman/do/downloadDocument/projects.ogsa-hpcp-wg/docman.root.drafts.application_template/doc15034

The main goal of this spec is to reduce the amount of info the user has to specify in a JSDL document and let the system admin provide (server side) the details needed to run a particular admin on a local cluster.

Steven

> -----Original Message-----
> From: saga-rg-bounces at ogf.org [mailto:saga-rg-bounces at ogf.org] On
> Behalf Of Malcolm Illingworth
> Sent: Monday, August 25, 2008 10:15 AM
> To: 'SAGA RG'
> Subject: Re: [SAGA-RG] Hosted applications
>
> Hi Thilo,
>
> I'm afraid its rather a contrived example. This would execute a bash
> script
> using the bash environment.
>
> The idea is that UNICORE supports "applications as a service". For
> example,
> imagine an application installed at a large number of sites. Different
> sites
> might install the application in different locations, eg for local
> operating
> reasons. To avoid the user having to know the location at each site,
> UNICORE
> can expose the application as a "service" at each site. So, another
> contrived example could be as follows:
>
>   <jsdl:JobDescription>
>         <jsdl:Application>
>           <jsdl:ApplicationName>CPMD</jsdl:ApplicationName>
>           <jsdl:ApplicationVersion>3.1.16</jsdl:ApplicationVersion>
>           <jsdl1:POSIXApplication
>   xmlns:jsdl1="http://schemas.ggf.org/jsdl/2005/11/jsdl-posix">
>             <jsdl1:Environment
> name="INPUT_DATA">mydata.dat</jsdl1:Environment>
>           </jsdl1:POSIXApplication>
>         </jsdl:Application>
>       </jsdl:JobDescription>
>
> This would run a CPMD instance, without the user having to know the
> exact or
> even relative location of the application.
>
> Hope this makes things a bit clearer?
>
> Malcolm.
> (ps perhaps this is overlapping with the service discovery API?)
>
>
> -----Original Message-----
> From: Thilo Kielmann [mailto:kielmann at cs.vu.nl]
> Sent: 25 August 2008 17:39
> To: Malcolm Illingworth
> Subject: Re: [SAGA-RG] Hosted applications
>
> Malcolm,
>
> I am not fully understanding your example.
> Can you please add what would actually be executed given this piece of
> JSDL?
>
> I am wondering whether a relative path would be "good enough" or what
> else
> would be missing?
> The "other end of the spectrum" would be to use the RPC package but
> this
> might be overkill.
>
> Curious...
>
>
> Thilo
>
> On Mon, Aug 25, 2008 at 02:35:25PM +0100, Malcolm Illingworth wrote:
> > From: Malcolm Illingworth <malcolm at epcc.ed.ac.uk>
> > To: 'SAGA RG' <saga-rg at ogf.org>
> > Subject: [SAGA-RG] Hosted applications
> >
> > Hi,
> >
> > My apologies if this is referring to an old discussion, but here goes
> ...
> >
> > UNICORE supports the concept of an "abstract" hosted application.
> This
> > means that an application is installed on a remote execution host,
> and
> > can be referred to via a name, rather than a path to the executable.
> > In JSDL this would look something like:
> >
> > ==================================================
> >  <jsdl:JobDescription>
> >        <jsdl:Application>
> >          <jsdl:ApplicationName>Bash shell</jsdl:ApplicationName>
> >          <jsdl:ApplicationVersion>3.1.16</jsdl:ApplicationVersion>
> >          <jsdl1:POSIXApplication
> >  xmlns:jsdl1="http://schemas.ggf.org/jsdl/2005/11/jsdl-posix">
> >            <jsdl1:Environment
> name="SOURCE">input.sh</jsdl1:Environment>
> >          </jsdl1:POSIXApplication>
> >        </jsdl:Application>
> >      </jsdl:JobDescription>
> > ==================================================
> >
> > Any thoughts of how I could support this at the SAGA level? The SAGA
> > job description defines an EXECUTABLE property, but I'm assuming this
> > has to be an actual path.
> >
> > Regards,
> > Malcolm.
> >
> > ---------------------------------------------------- |epcc| -
> >
> > Malcolm Illingworth
> > EPCC, University of Edinburgh
> > James Clerk Maxwell Building
> > Mayfield Road                   E-mail: malcolm at epcc.ed.ac.uk
> > Edinburgh EH9 3JZ               Phone:  + 44 (0) 131 651 3388
> > United Kingdom                  Fax:    + 44 (0) 131 650 6555
> >
> > -------------------------------------------------------------
> >
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>
>
>
> --
> Thilo Kielmann
> http://www.cs.vu.nl/~kielmann/
>
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