Fluid flow benchmark -- help me choose CPU/mboard

Would you help me by running a benchmark on AMD64 and P4 systems
with dual-channel DDR?

I am trying to decide on getting an Opteron or a P4 (875 or 865xx)
dual-channel PC3200 system. Most of the machine's CPU cycles will be
used to run just one program, which happens to be very memory-intensive.
This benchmark is a scaled-down version of that particular program, with a
realistic
calculation load.
=====the test========
First, this is the same benchmark I posted here at least 2 years ago... but
hardware has changed a lot since then.

Here are some rather dated, painfully explicit instructions for running the test
under windows.
The Linux version is very similar in usage, except the switches in the "bat"
file are explicitly placed after the executable name at the command prompt.

http://users.viawest.net/~hwstock/bench/3d0/how_3d0.doc

....If you try to open this file directly from the web, and you have Norton
Antivirus,
you may get a complaint that this file has a "malicious script" (it doesn't),
probably
because it has embedded web URLs. In any case, you may want to download
the file and scan it before you read it.

And here are the zipped benchmark executables, for windows (95 and up) and Linux
x86.
http://users.viawest.net/~hwstock/bench/3d0/3d0.zip
http://users.viawest.net/~hwstock/be.../3d0_linux.zip

The how_3d0.doc file explains what I need returned to me.

If you feel more comfortable communicating via an edu or gov address, I can
be reached at:

hwstock _AT_ alum dot mit dot edu

or

hwstock _AT_ sandia dot gov

Note the return address for this post is anti-spam munged; it should be fairly
obvious how to "unmumg" it.