Hi Peter,

Virtuoso open source and commercial are fully multi-threaded products, with the 
number of threads used by the server being configurable and determining the 
memory usage of the server as detailed at:

        http://docs.openlinksw.com/virtuoso/dbadm.html#srvadmopreq

In terms of multiple processor/core usage this would be determined by the 
operation system which should schedule the execution of the threads in use 
equally across the available processors/cores.

Best Regards
Hugh Williams
Professional Services
OpenLink Software
Web: http://www.openlinksw.com
Support: http://support.openlinksw.com
Forums: http://boards.openlinksw.com/support
Twitter: http://twitter.com/OpenLink

On 12 Jun 2010, at 00:14, Peter DeVries wrote:

> I have not started yet, VOS is now included in the Ubuntu packages and it 
> works with a regular server setup.
> 
> sudo apt-get virtuoso-opensource
> 
> I did just noticed that Eucalyptus will use just one VM per processor so it 
> might be best to go with the regular Lucid server.
> 
> To what extent does Virtuoso Open Source benefit from multiple processors?
> 
> Thanks!
> 
> - Pete
> 
> 
> On Fri, Jun 11, 2010 at 5:16 PM, Nathan <[email protected]> wrote:
> Peter DeVries wrote:
> Hi have a new server that I am thinking of setting up with Virtuoso Open
> Source under Ubuntu Lucid Server Eucalyptus.
> 
> I have been able to get Virtuoso Open Source running under Ubuntu Lucid
> server via the apt package.
> 
> Does anyone have any experience getting this to work under Eucalyptus?  Any
> tips or suggestions?
> 
> Have you tried a normal .configure and make ?
> 
> 
> 
> -- 
> ----------------------------------------------------------------
> Pete DeVries
> Department of Entomology
> University of Wisconsin - Madison
> 445 Russell Laboratories
> 1630 Linden Drive
> Madison, WI 53706
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