Re: [Condor-users] Condor clients using virtual linux?

[Jason Malinowski <malinowski@xxxxxxxx>]

> Does the host OS still provide cycles to guest OS?

Yes. To test this, I just submitted 100 "hello world" jobs to an instance of
condor running entirely within VMware player (Scientific Linux 3.0.4). The
jobs continued to run even after I pressed Ctrl+Alt, as VMware still gave
them CPU time on the host (to confirm this, you can watch the Windows task
manager on the VMware process, or just wait a few minutes, go back into the
VM, and just do a condor_q.) 

Jason Malinowski

> -----Original Message-----
> From: condor-users-bounces@xxxxxxxxxxx [mailto:condor-users-
> bounces@xxxxxxxxxxx] On Behalf Of Junaid N. Sahibzada
> Sent: Wednesday, March 29, 2006 12:43 AM
> To: Condor-Users Mail List
> Subject: Re: [Condor-users] Condor clients using virtual linux?
> 
> This brings me to the question that what happens to a non interactive job
> executing inside a guest OS, when you press CNTRL+ALT and "come out" of
> the VMware virutal environment?
> 
> Does the host OS still provide cycles to guest OS?
> 
> I am asking this question because you can only work interactively either
> inside the guest OS or in the host OS.
> 
> Not both of them?
> 
> Does the same apply to non interactive jobs?
> 
> 
> 
> Erik Paulson <epaulson@xxxxxxxxxxx> wrote:
> 
> 	On Wed, Mar 29, 2006 at 01:38:37PM +0800, Greg.Hitchen@xxxxxxxx
> wrote:
> 	>
> 	> Hi All
> 	>
> 	> I've been asked to look into the possibility of adding virtual
> 	> linux to windows boxes and installing the condor client on the
> 	> linux VM.
> 	>
> 	<...>
> 
> 	> VMWare and VirtualPC are 2 examples of pack! ages, although I'm
> led to
> 	> believe that VMWare handles linux OS's better. Maybe there are
> others
> 	> that are more suitable (or cheaper :))?
> 	>
> 
> 	VMWare Player is free, as is now VMWare server. With the Intel
> 	virtualization hardware, Xen will be able to run native Linux
> 	distributions, so it will also compete.
> 
> 	<...>
> 	>
> 	> 3) Is there a way for the condor client on the linux VM to know
> 	> that the windows OS is busy (CPU, keyboard, mouse activity)?
> 	>
> 
> 	The 6.7.18 release includes code for an "outer" startd to update an
> 	"inner" startd, where the outer startd would run on the host
> operating
> 	system and the inner startd is running on a guest VM operating
> system,
> 	to do exactly what you describe. It's not documented, and I'm not
> sure if
> 	there's more to do in 6.7.19 before it works, or if it will work
> once we
> 	get the documentation out there. Either way, you should upgrade to
> 6.7.18 :)
> 
> 	-Erik
> 
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> 
> 
> 
> 
> Junaid N. Sahibzada
> Cell # (+61) 404 998 494
> International Student MSc Internetworking, UTS, Australia
> Bachelor of Information Technology, NUST, Pakistan
> 
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