Re: OpenMOSIX 2.4 showing 32 CPU's in a hyperthreaded machine!!!

Hi,

I'm using 2.4.26 (the official one), on a Slackware 10.2 system. The CPU I'm using is a Intel P4c 3.0Ghz (HT), in a normal setup I get 2 CPUs, but on OpenMOSIX I get 32 CPUs, Its not a problem as such as the excess CPU's user and system values are 0 anyway, but I was just curious, thinking that it might be a feature of sorts.

Regards
Irfan 

----- Original Message ----
From: Evan Hisey <[email protected]>
To: Irfan Habib <irfanhab-/[email protected]>; openMosix-devel <openmosix-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>
Sent: Tuesday, October 3, 2006 8:10:58 AM
Subject: Re: [Openmosix-devel] OpenMOSIX 2.4 showing 32 CPU's in a hyperthreaded machine!!!

Oops, That really should be excess CPUs, not excess threads.

Evan

On 10/3/06, Evan Hisey <[email protected]> wrote:
> Irfan-
>    A 2.4 kernel was not always stable on hyper threading for starts.
> OpenMosix in particular did not like hyper threading in the 2.4
> series. That said it should still not be reporting excess threads.
> Which 2.4 kernel are you using, the last official was 2.4.26? You did
> have not yet provide enough information on your setup for anyone to
> help.
>
> Evan
>
> On 10/3/06, Irfan Habib <irfanhab-/[email protected]> wrote:
> > Hi,
> >
> > I'm running a kernel module which reports the CPU usage of a process, in an unpatched kernel it shows correctly 4 entries (1 User and 1 system for each CPU), however OpenMOSIX kernel shows 64 entries!! 1 user and 1 system for 32 CPUs, and obvisouly the first 4 values are shown but the rest is all zero!
> >
> > Why 32 CPU? why not use the ordinary kernel way to report the real number of cpus?
> >
> > Regards
> > Irfan
> >
> >
> >
> >
> >
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