Re: [Condor-users] elf on windows

["Timothy St. Clair" <tstclair@xxxxxxxxxx>]

On Tue, 2011-05-31 at 10:33 -0400, Ian Chesal wrote:
> On Tuesday, May 31, 2011 at 9:43 AM, alaxa@xxxxxxxxx wrote:
> 
> > sorry for the silly questions but I was wondering if/how condor is
> > able to 
> > distribute code written from linux to windows machines in the pool.
> > I am trying 
> > but I get the Shadow Exception so I suspect It cannot run any elf
> > code, am I 
> > right?
> > 
> You are correct. You cannot run this binaries on non-Linux systems. 
> > Then, I see that there are project about running the condor-pool
> > inside a 
> > cluster of virtualmachine. I was wondering how this is efficient
> > and 
> > performant.
> > 
> Modern virtual machine technology is impressive. The performance is
> somewhat VM-technology and application specific, but it's rarely an
> awful way to run computations these days. The biggest hit you'll take
> with this approach is the movement of the VM -- these VM files can get
> big if you're not careful with how you architect your job and your
> VMs.

To piggy back on Ian's comments, locality(or "caching") of your vm
images can make a big difference.  E.g. if you have a series of generic
images, having them pre-staged will vastly increase performance of
VM-jobs. 

> 
> 
> - Ian 
> 
> -- 
> Ian Chesal
> ichesal@xxxxxxxxxxxxxxxxxx
> http://www.cyclecomputing.com/
> 
> 
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