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<DIV><FONT color=#0000ff face=Arial size=2><SPAN class=640062401-07102002>I
tried setting up an AMD 1800+ on a Soyo Dragon Ultra and didn't see as much
speed increase as I had hoped either. Turns out that I needed to set some
non-default values (cpu clock multiplier if I remember right) in the bios setup
to get it to run at the 1.56Ghz for the AMD. You might want to run the MS
NT diag (it's a stand alone diskette created from the NT CDs) or other to see
what it estimates the CPU speed to be.</SPAN></FONT></DIV>
<DIV> </DIV>
<DIV><FONT color=#0000ff face=Arial size=2><SPAN class=640062401-07102002>I
assume the program isn't disk bound. (can't hurt to ask,
right?)</SPAN></FONT></DIV>
<DIV><FONT color=#0000ff face=Arial size=2><SPAN
class=640062401-07102002></SPAN></FONT> </DIV>
<DIV><FONT color=#0000ff face=Arial size=2><SPAN class=640062401-07102002>You
might run the top program to make sure that there isn't another program hogging
CPU.</SPAN></FONT></DIV>
<DIV><FONT color=#0000ff face=Arial size=2><SPAN
class=640062401-07102002></SPAN></FONT> </DIV>
<DIV><FONT color=#0000ff face=Arial size=2><SPAN class=640062401-07102002>I
would guess that if your program is computational bound, your not doing much
with the kernel, so that wouldn't be my first place to look, but that's more
guess than experience.</SPAN></FONT></DIV>
<DIV><FONT color=#0000ff face=Arial size=2><SPAN
class=640062401-07102002></SPAN></FONT> </DIV>
<DIV><FONT color=#0000ff face=Arial size=2><SPAN class=640062401-07102002>You
might try booting the new computer with Windows and see if it runs any
better. It has been my experience that Linux runs about 20% faster than
Windows, but that was done on a CPU bound application that's accessing a large
cached DB (no disk i/o) in Oracle.</SPAN></FONT></DIV>
<DIV><FONT color=#0000ff face=Arial size=2><SPAN
class=640062401-07102002></SPAN></FONT> </DIV>
<DIV><FONT color=#0000ff face=Arial size=2><SPAN class=640062401-07102002>Hope
this helps a little.</SPAN></FONT></DIV>
<BLOCKQUOTE style="MARGIN-RIGHT: 0px">
<DIV align=left class=OutlookMessageHeader dir=ltr><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B>
tclug-list-admin@mn-linux.org [mailto:tclug-list-admin@mn-linux.org]<B>On
Behalf Of </B>Randy Clarksean<BR><B>Sent:</B> Sunday, October 06, 2002 3:24
PM<BR><B>To:</B> tclug<BR><B>Subject:</B> [TCLUG] Kernel - AMD - Computational
Speed?<BR><BR></DIV></FONT>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I just put together a new AMD XP 2100+
system and installed RedHat 7.2 The intent of this machine is heavy
computational work (1.5 GB RAM, 80 GB HD, ABIT Motherboard with PC2100
RAM). I have an older Win2000 Machine, dual PIII 700 MHz 1 GB RAM - TYAN
Motherboard that I have been using for computational work.
</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I have data from an analysis run on the PIII
system (1 CPU) and I just ran that same analysis on the new AMD21+
system. The speed improvement was NOT what I hoped for.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>PIII 700
MHz
96,360 seconds</FONT></DIV>
<DIV><FONT face=Arial size=2>AMD XP
2100+ 65,040
seconds</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I do realize that there are operating system
issues, etc. ... but with all of that I had anticipated a larger reduction in
computational time. The code I am running is a commercial code that is
developed to run on both operating systems, so I am fairly sure they work to
get the best CPU time on both platforms. I was hoping for something on
the order of 1/2 the CPU time - on large computational runs like this every
little reduction in time helps.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Not being a "kernel" expert by any means ...
would it make any sense to recompile the kernel on my new platform, rather
than relying on the kernel as loaded from the RH7.2 distribution CDs?
Any suggestions would be greatly appreciated!</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Randy Clarksean, Ph.D., P.E.<BR>Leading
Technology Designs, Inc.<BR>106 North Boardman Ave.<BR>P.O. Box N<BR>New York
Mills, MN 56567</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>"Excellence can be attained if you Care more than
others think is wise, Risk more than others think is safe, Dream more than
others think is practical, and Expect more than others think is possible." -
Author Unknown </FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>ph: 218-385-3750<BR>fax:218-385-3751<BR>email: <A
href="mailto:rclark@lakesplus.com">rclark@lakesplus.com</A><BR></FONT></DIV></BLOCKQUOTE></BODY></HTML>