Re: [Condor-users] windows determination of Memory

[Mark Silberstein <marks@xxxxxxxxxxxxxxxxxxxxxxx>]

Condor indeed divides the overall amount of memory equally between all
VMs. What you are saying is at least strange - I had 8 GB quad and it
worked perfectly fine for me, though it was Linux. 
Make sure that your CPUs have hyperthreading disabled.
Available memory can be FORCED to be what you want in config file.

MEMORY=4096

For every CPU to claim the whole amount of memory - just put MEMORY x
#CPUs. But this is BAD, since you actually overbook your memory, and may
eventually cause thrashing


On Thu, 2004-07-01 at 12:34, Matt Hope wrote:
> on an SMP windows machine what mechanism determines
> 
> A) the available memory
> B) the default split across vm's
> 
> I assume B is total / number of vms
> What determines A - and is it limited. e.g. if the machine has 4GB and is/ isn't using /3GB (for Windows 2000) or the /4GT (or god help you /PAE)
> The reason I ask is that a 4GB 2 vm machine is reporting 1 GB per vm.
> 
> One other thing - it would be nice to have a switch that forced all smp vms to report the total amount of memory rather than dividing by two/four etc.
> I know you can force it directly but then you have the maintenance overhead on the config file on diferent machines.
> 
> 
> 
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