Can I configure cores instead of CPU's

Can I configure cores instead of CPU's

[Todd And Margo Chester]

Hi All,

Scientific Linux 6.1 x64
qemu-kvm-0.12.1.2-2.160.el6_1.2.x86_64

My XP-Pro guest will only let me use two CPUs.

Is there a way I can tell Virt-Manager to use
one CPU with four cores instead of four separate
CPUs?

Many thanks,
-T

Re: Can I configure cores instead of CPU's

[Brian Jackson]

On 12/2/2011 4:27 PM, Todd And Margo Chester wrote:
> Hi All,
>
> Scientific Linux 6.1 x64
> qemu-kvm-0.12.1.2-2.160.el6_1.2.x86_64
>
> My XP-Pro guest will only let me use two CPUs.
>
> Is there a way I can tell Virt-Manager to use
> one CPU with four cores instead of four separate
> CPUs?


Don't know about how to do it with virt-manager (I believe they have 
their own mailing list), but for standard qemu/kvm you can use "-smp 
4,cores=4"


>
> Many thanks,
> -T
> -- 
> To unsubscribe from this list: send the line "unsubscribe kvm" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

Can I configure cores instead of CPU's

[Todd And Margo Chester]

> Hi All,
>
> Scientific Linux 6.1 x64
> qemu-kvm-0.12.1.2-2.160.el6_1.2.x86_64
>
> My XP-Pro guest will only let me use two CPUs.
>
> Is there a way I can tell Virt-Manager to use
> one CPU with four cores instead of four separate
> CPUs?
>
> Many thanks,
> -T


Hi Frank,

Figured out what I was doing wrong.  In virt-manager,
Processor, as soon as I clinked on the "Copy host CPU
configuration" button (Nelhalem, by the way), when
I went to "topology", I was able to configure:
    socket = 1
    cores  = 4
    thread = 1
And, this time XP-Pro saw the cores as cores and not
individual CPUs.

I even got fancy and tried
    socket = 1
    cores  = 2
    thread = 2
And that worked too.  Yipee!

My mistake was not clicking on the "Copy host CPU
configuration" button.

Thank you for all the help in getting me there.

Happy Camper,
-T