[Beowulf] Threaded code

Art Edwards arthur.edwards at kirtland.af.mil
Tue Aug 17 11:57:07 EDT 2004


I mean that when we run the threaded code and look at top, don't see two
processors running. The load is always less than or equal to one. When
we run two separate jobs, we see a load of 2. 

Art Edwards

On Tue, Aug 17, 2004 at 07:45:32AM -0700, Alvin Oga wrote:
> 
> hi ya
> 
> yup.. that is dual cpu
> 
> On Tue, 17 Aug 2004, Art Edwards wrote:
> 
> > We are running SuSE 9.1 on a system with 8 GB of ram and two scsi disks.
> > Here is /proc/cpuinfo
> > processor       : 0
> 
> good
> 
> > processor       : 1
> 
> good
> 
> > Linux bladerunner 2.6.4-52-smp #1 SMP Wed Apr 7 01:58:54 UTC 2004 x86_64
> > x86_64 x86_64 GNU/Linux
> 
> good
> 
> 
> > > Newbie question:
> > > 
> > > We just purchased a dual opteron box that is running an SMP kernel. We
> > > have built a fortran code using g77 and a pthreaded atlas. Currently, we
> > > see only one processor. What really simple thing have we missed?
> 
> so what do you mean by "see only one processor" ??
> 
> c ya
> alvin

-- 
Art Edwards
Senior Research Physicist
Air Force Research Laboratory
Electronics Foundations Branch
KAFB, New Mexico

(505) 853-6042 (v)
(505) 846-2290 (f)
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