[Beowulf] Intel 64bit (emt) Fortran code and AMD Opteron

Greg Lindahl lindahl at pathscale.com
Thu Oct 28 16:28:35 EDT 2004


On Thu, Oct 28, 2004 at 01:39:52PM -0600, Craig Tierney wrote:

> However, for most applications the vectorization
> is going to give you the big win.

People think that, but did you know that SIMD vectorization doesn't
help any of the codes in SPECfp? Remember that the Opteron can use
both fp pipes with scalar code. This is very different from the
Pentium4. I'd say this myth is the #1 myth in the HPC industry right
now.

-- greg
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