[uml-user] SMP support for UML and OpenSSI Cluster

2007-12-04 Thread Flavio
Hi all,

Can an UML process run on multiple processor?
I thought to use an HPC clustering system for processes migration
between two machines.
Since UML is an (user mode) process, could it be migrated from a
cluster to another one?
Can I benefit of an HPC clustering system to increase performances?


I thought to run UML using OpenSSI cluster, is there anybody here who
found some trouble doing that?

Thanks a lot,

Flavio

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Re: [uml-user] SMP support for UML and OpenSSI Cluster

2007-12-04 Thread Jeff Dike
On Tue, Dec 04, 2007 at 10:51:28PM +0100, Flavio wrote:
> Can an UML process run on multiple processor?

If you mean an SMP UML instance, right now, no.

> I thought to use an HPC clustering system for processes migration
> between two machines.
> Since UML is an (user mode) process, could it be migrated from a
> cluster to another one?

Sure, if your cluster can migrate processes, it should have no trouble
with UML.

Jeff

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Re: [uml-user] Multiple instances

2007-12-04 Thread Jeff Dike
On Fri, Nov 30, 2007 at 06:54:02AM -0500, Jason Gauthier wrote:
>   I am trying to run multiple instances of UML, but running into
> problems "sharing" the bridged network interface.  Can someone outline
> how this can be done?

Describe your network more completely.

With multiple UMLs and bridging, each UML will have its own tap device
which will be added to the bridge device.  There is no sharing of
interfaces except that you have these tap devices all added to the
bridge.

Jeff

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Re: [uml-user] SMP support for UML and OpenSSI Cluster

2007-12-04 Thread Cameron Kerr
I'm not that familiar with OpenSSI or how SKAS3 works, but wouldn't  
they conflict? I seem to recall being told (quite) a while back that  
UML wouldn't run on Mosix (not that OpenSSI is Mosix)... presumably  
for some SKAS related reason???

Could someone possibly elaborate? I looked at the Powerpoint  
presentation[1] about OpenSSI, and it seems that there may be a  
likely patch overlab in the Vproc and SKAS support?

  [1] http://www.csm.ornl.gov/workshops/SOS8/sos8-hp.ppt

On 5/12/2007, at 1:23 PM, Jeff Dike wrote:

> On Tue, Dec 04, 2007 at 10:51:28PM +0100, Flavio wrote:
>> Can an UML process run on multiple processor?
>
> If you mean an SMP UML instance, right now, no.
>
>> I thought to use an HPC clustering system for processes migration
>> between two machines.
>> Since UML is an (user mode) process, could it be migrated from a
>> cluster to another one?
>
> Sure, if your cluster can migrate processes, it should have no trouble
> with UML.
>
>   Jeff
>
> -- 
> Work email - jdike at linux dot intel dot com
>
> -- 
> ---
> SF.Net email is sponsored by: The Future of Linux Business White Paper
> from Novell.  From the desktop to the data center, Linux is going
> mainstream.  Let it simplify your IT future.
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