[gin-jobs] Standarized Execution Environment

[Thomas Soddemann]

Hi Dave,

and how would  you run Xen on a BlueGene or a XT4?

HW Virtualizations like Xen or VMWare are certainly useful in contexts 
where performance does not play the most important role. But when it 
comes to job execution virtualization is currently not an option.
E.g. parallel environments have to be used the increased latency in 
network communication may swallow the benefit of parallel execution. 
Support for Infiniband or Myrinet is not available anyway, afaik.

IMHO, hence, everything has to work without virtualization, especially 
when supercomputers are the targeted computing resource.

Cheers,
Thomas

Dave Berry wrote:
> Have you considered the use of virtualisation technologies such as Xen
> or VMWare?
>
> I've heard that VMWare provide a free package that allows you to wrap an
> application and all the libraries (and OS?) that it depends on so that
> you can run it on any machine - but I don't know the details.
>
> Dave.
>
>   

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