Re: [gridcpr-wg] XCAT3: In scope or out?

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

IN SCOPE

Thilo

On Fri, Nov 05, 2004 at 10:51:40AM -0500, Paul Stodghill wrote:
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> Subject: [gridcpr-wg] XCAT3: In scope or out?
> Date: Fri, 5 Nov 2004 10:51:40 -0500
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> From: "Paul Stodghill" <stodghil@cs.cornell.edu>
> To: <gridcpr-wg@gridforum.org>
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> XCAT3 \cite{xcat3} is a Common Component Architecture application
> framework based on Grid standards. One of the functions that XCAT3
> provides is checkpointing for CCA-based applications. Because these
> applications can be executed on a number of distributed computing
> resources, consistency is a consideration when checkpointing. XCAT3
> handles this by providing \emph{Application Coordinators}. When a
> checkpoint is required, the user or some other agent notifies the
> Application Coordinator, which then executes a non-blocking coordination
> protocol between the distributed components.
>  
> In order to provide checkpointing within a heterogeneous computing
> environment, XCAT3 uses application-level checkpointing. Also,
> checkpoint data is stored in XML to ensure maximum portability.
>  
> In order to ensure the availability of checkpoint data in the event of
> processor failure, XCAT3 assumes a Storage Service Federation, which can
> provide stable storage for checkpoint data.
>  
> Functional requirements:
> \begin{itemize}
> \item API for application state writing and reading.
> \item Services for checkpoint data management and associated API.
> \end{itemize}
> 



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