Re: [gridcpr-wg] GridLab: In scope or out

[Thilo Kielmann <kielmann@cs.vu.nl>]

I vote "in scope" although I might not be unbiased in this case ;-)

Thilo

On Wed, Nov 03, 2004 at 08:32:04PM -0500, Paul Stodghill wrote:
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> Subject: [gridcpr-wg] GridLab: In scope or out
> Date: Wed, 3 Nov 2004 20:32:04 -0500
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> From: "Paul Stodghill" <stodghil@cs.cornell.edu>
> To: <gridcpr-wg@gridforum.org>
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> In the GridLab project \cite{gridlab-homepage,gridlab-overview}, a job,
> consisting of one or more processes, is running on a grid machine. In
> the middle of the run, the job may be forced to migrate to a different
> machine, possibly with a different architecture and/or number of CPUs.
> The application program may either decide by itself to migrate (e.g.
> poor performance on the current machine) or may be forced to do so,
> either by the user (via an application manager) or by the local resource
> management software that wishes to evict the job. The main purpose of
> GridCPR in GridLab thus is the ability to interrupt and migrate a job
> until it finally terminates. Fault-tolerance is only a secondary aspect.
>  
> An extension of the above use-case is dealing with jobs that run
> concurrently at multiple grid sites.
>  
> Applications save their state to regular files. Checkpoint meta data can
> be stored in GridLab's "advert service", allowing the checkpoint file(s)
> to be found and retrieved after restart. File transport is done via
> GridLab's data movement service (or via GridFTP) \cite{gridlab-day}.
>  
> Key functions:
> \begin{itemize}
> \item Services for checkpoint data transport, via GridLab's data
>   movement service or GridGTP.
> \item Services for checkpoint data management, via Advert Service.
> \end{itemize}
>  
>  



-- 
Thilo Kielmann                                 http://www.cs.vu.nl/~kielmann/