Really?

In fact I have a quadcore. But how can I know if Linux are really using only
one core, and how can I setup it to use the 4cores?

Thanks a lot,

milton

On Mon, Jun 29, 2009 at 1:46 AM, Patrick Connolly <
p_connolly@slingshot.co.nz> wrote:

> On Fri, 26-Jun-2009 at 04:37PM -0400, milton ruser wrote:
>
> |> Hi there,
> |>
>
> |> I have both systems on a DELL 64bit machine.
>
> |> I compiled R 2.9.0 on both systems, to get 64bits capability.
> |> Surpriselly, on Linux (Ubuntu with I installed 3 month ago) I spent
> |> 41s to run the same test you did, and less time (35s) under
> |> Vista. In fact I had noticed that I not have gained time when
> |> running under linux (I had done jobs that run for several
> |> days). But somethings I gain with memory managment, because for
> |> some programs or steps, windows say that memory is full, while
> |> Linux run up to the end of the job.
>
> I think there's a simple explanation for both of those observations.
> Your Windows installation is more than likely using both cores (or 4
> if you have a quad core) while your Linux is using only 1 of them.
>
> best
>
> --
> ~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.
>   ___    Patrick Connolly
>  {~._.~}                   Great minds discuss ideas
>  _( Y )_                 Average minds discuss events
> (:_~*~_:)                  Small minds discuss people
>  (_)-(_)                              ..... Eleanor Roosevelt
>
> ~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.
>

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