ATLAS vs. Intel Math Kernel Library

[Mattson, Timothy G]

Ole,

The MKL librarires are worth the price since they are free.  You can
download them at no cost from the intel.developer web site.

As for performance comparisons, its mixed.  Sometimes Atlas is faster,
sometimes MKL is faster.  One factor in MKL's favor is its size --- MKL is a
lot more than just the BLAS.  It includes FFT's, LAPACK, and a very fast
vector transcendental library.

-Tim Mattson

Intel Corp (not part of the MKL team, but close to them)





-----Original Message-----
From: Ole W. Saastad [mailto:ole at scali.no]
Sent: Thursday, May 17, 2001 10:46 AM
To: beowulf at beowulf.org
Subject: ATLAS vs. Intel Math Kernel Library



How does the performance of ATLAS generated libraries compare
to the Intel Math Kernel Library?

Intel claim P4 support, but so does ATLAS.
I would also like too see FFT in the ATLAS project.
Fast FFT are always in demand!

Is it worth the extra investment for the Intel package ?


Ole W Saastad
Scali AS.




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