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Re: [Xen-devel] Xen & I/O in clusters - Single Vs. Dual CPU issue

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Subject: Re: [Xen-devel] Xen & I/O in clusters - Single Vs. Dual CPU issue
From: "Mark A. Williamson" <mark.williamson@xxxxxxxxxxxx>
Date: Tue, 2 Nov 2004 16:35:35 +0000
Cc: H�rd Bjerke <Havard.Bjerke@xxxxxxxxxxx>, Ian Pratt <Ian.Pratt@xxxxxxxxxxxx>, Rune Johan Andresen <Rune.Johan.Andresen@xxxxxxxxxxx>
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> Now I'm curious about live migration. Is it possible to live migrate an MPI
> application running on a set of nodes to another set of nodes? Has anyone
> tried that?

If you're using MPI over TCP/IP (which I imagine you are) then it should Just 
Work (TM).  We have tried live migration with MPI applications but you 
shouldn't have any problems moving the VMs around with a cluster.


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