[lug] Really off topic

[Ken Scott]

The K6-2 does have MMX available, along with 3D-Now.

The difference may be in the FPU. Intel kicks major butt on the AMD K6
line on FPU operations (that's why a lot of the 3D games run better on
Intel over AMD or Cyrix). If the SETI stuff is heavy on the FPU (which I
think would be the case, given Fourier transforms), then I would look
there.


Ken

On Fri, 25 Feb 2000, Viggy wrote:

> My initial gut reaction is that perhaps the software is compiled to take
> advantage of the Intel processor itself.  I think all P2's are MMX. 
> Perhaps the s/w is using the MMX extensions, and on the AMD it is not (I
> don't think that the AMD has the MMX extensions, just their own 3D Now
> extensions).
> 
> Viggy
> 
> > -----Original Message-----
> > From: lug-admin at lug.boulder.co.us [mailto:lug-admin at lug.boulder.co.us]On
> > Behalf Of Whit Morrison
> > Sent: Thursday, February 24, 2000 5:59 PM
> > To: lug at lug.boulder.co.us
> > Subject: [lug] Really off topic
> > 
> > 
> > I know this doesn't relate to Linux, but I don't think I could find a
> > more knowledgeable group to put this question to.  I am running an AMD
> > K6-2 400 with 64 meg at home, at work Im using a pentium II 266 64 meg
> > running win NT 4.  I started processing data from seti at home at work, and
> > it took ~ 15 hours per work unit.  I thought it would be neat to see
> > what it would do on my home machine (on both Linux and NT). I was
> > disappointed to say the least... the AMD running NT took 25 hours, and
> > running Linux it took ~ 14 hours.  As I understand they are doing a
> > fourier analysis on the data.  Now with all that out of the way... does
> > anyone know why the AMD might perform so poorly?
> > It seems to everything else pretty well.
> > 
> > Hope I didn't upset to many with this question.
> > 
> > Whit
> 
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-- 
><>   Ken Scott   kscott at pcisys.net   http://www.pcisys.net/~kscott   
                                                                      
              This is the day that the Lord has made;             
              I will rejoice and be glad in it!          -- Psalm 118:24