* rpasken@eas.slu.edu:

> I should have explain what MM5, HYPSLIT4 and SLU-DRAS are.

not necessary...

> MM5 is a
> very fine scale (1km/1min resolution) numerical weather prediction
> model It does very little I/O and is very floating point intensive. It
> reads raw weather data at the begining of the run and then the only I/O
> is when it spits out a specific forecast typically every 30 minutes of
> forecast time. HYSPLIT4 is an atmospheric dispersion model. Using MM5
> output it computes the concentrations of chemicals as they are
> dispersed. It handles chemical transformations as well as dispersion.
> SLU-DRAS is a real-time Doppler radar/lidar analysis system. It takes
> live multiple Doppler velocity and reflectivity data and converts it
> into the 3-D wind field, temperatures and pressures. All three systems
> are well documented software packages that run on a wide range of
> hardware.

Right.

> Only nuclear bomb testing software is more floating point
> intensive.

Definitely not.

> I used Compaq/HP x86 hardware (ML-350 dual 1.4GHZ P3's)and a Sun (Blade
> 1000 dual 750GHZ) running both Solaris and Linux for the benchmarks. No
> benchmark of any the software ran less than 5 days. Only about half my
> benchmarks completed on the compaq hardware due to sig seg violations
> at random points in the code. According to dmesg they were associated
> with memory errors.

So you have run these programs on an ancient Compaq ML350 P3 server with
defective memory. Ok. And how does that relate to your statement that
about Itanium which you obviously never ever used?

Benjamin