[saga-rg] ISSUE 132

Andre Merzky andre at merzky.net
Thu Apr 27 08:14:11 CDT 2006


Yes, refering to / using these definitions seems sensible.
Good point.  

From the cited definitions I would assume that a 'Job
Manager' has one (or more)  'Endpoints', right?  

A target host name would then be left out - that might 
(or might not) be represented by an Job Manager (e.g. 
gram gatekeeper).

Thanks, Andre,


Quoting [G.E.POUND at soton.ac.uk] (Apr 24 2006):
> 
> Andre,
> 
> The document "Open Grid Services Architecture Glossary of Terms" may help
> resolve some of the semantic difficulties that we have been having with
> this topic.
> http://www.ggf.org/Public_Comment_Docs/Documents/Apr-2006/draft-ggf-ogsa-glossary-1.5-006.pdf
> 
> The following terms correspond to my understanding of this subject, and are
> the level at which the SAGA API should operate (concealing the identity of
> back-end batch systems):
> 
>   Endpoint - A Web service endpoint to which a client may bind in order
>              to consume a service.
> 
>   Job manager - In OGSA-EMS, a service that manages a set of one or more
>                 job instances, which may be structured (e.g. a workflow
>                 or dependence graph) or unstructured (e.g. an array of
>                 non-interacting jobs).
> 
> Graeme
> 
> 
> 
> Quoting Andre Merzky <andre at merzky.net>:
> 
> >   132) when do we refer to target host name, and when to resource manager
> >        contact, on job submit/description?  Se mail thread with
> >        Graeme/Chris "JobService.submitJob() query"
> >        - OPEN, URGENT
> >
> > See also the comment from Graeme to the list today below:
> >
> > > Andre,
> > >
> > > The client must be able to specify the resource manager to which jobs
> > > are submitted, as a service URL or machine name. This should be a
> > > argument for either the JobService constructor, or the
> > > JobService.createJob() & JobService.runJob() methods.
> > >
> > > I guess that conceptually I prefer specifying the resource manager
> > > during the construction of the JobService object. However in an earlier
> > > mail Chris Smith indicated that the 'host' argument of the runJob()
> > > method was originally intended to indicate the machine upon which the
> > > job should be run (mapping to an element of the SAGA_HostList
> > > attribute). This is confusing and the 'host' argument should be
> > removed,
> > > or redefined to indicate the resource manager.
> > >
> > > Graeme
> >
> > I propose to go with Grames proposal unless there are
> > opinions to do differently.  I like the version to redefine
> > the host arg better than to remove it altogether.
> >
> > Other opinions?
> >
> > Thanks, Andre.
> >
> >
> >
> > --
> > "So much time, so little to do..."  -- Garfield
> >
> >
> >
> >
> 
> 
> 
> 



-- 
"So much time, so little to do..."  -- Garfield





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