[gmx-users] P4 vs P3 performance ? Special compilation options ?

[Marc Baaden]

Hi,

I just did a quick but pertinent benchmark, comparing
a single-processor job on a 1.266 GHz PIII versus the
same job on a 1.7 GHz PIV (Xeon) .. and the Xeon is
slower ! taking about 10% longer.

Is this right (eg the effect of the increased pipeline
length in the P4's) ? Or are there some special compilation
options to get the Gromacs code on Xeons at high speed ?

  Marc

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 Dr. Marc Baaden - Laboratory of Molecular Biophysics, Oxford University
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