Intel compilers and libraries

C J Kenneth Tan -- Heuchera Technologies cjtan at
Mon Oct 6 10:54:43 EDT 2003


Pardon me for some advertising here, but our OptimaNumerics Linear
Algebra Library can very significantly outperform Intel MKL.
Depending on the particular routine and platform, we have seen
performance advantage of almost 32x (yes, that's 32 times!) using
OptimaNumerics Linear Algebra Library!

I can send you one of our white papers which shows performance
benchmark details off-line.  If anyone else is interested, please do
send me an e-mail also.

Best wishes,
Kenneth Tan
C. J. Kenneth Tan, Ph.D.
Heuchera Technologies Ltd.
E-mail: cjtan at      Telephone: +44 798 941 7838
Web:    Facsimile: +44 289 066 3015
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On Mon, 6 Oct 2003, [iso-8859-1] Jos? M. P?rez S?nchez wrote:

> Date: Mon, 06 Oct 2003 13:21:02 +0200
> From: "[iso-8859-1] Jos? M. P?rez S?nchez" <iosephus at>
> To: beowulf at
> Subject: Intel compilers and libraries
> Hello:
> We are thinking about purchasing the Intel C++ compiler for linux,
> mainly for getting the most of our harware (Xeon 2.4Gz processors), we
> are also interested in the Intel MKL (Math Kernel Library), I would like
> to know if the performance gain using Intel compiler+libraries, which exploit
> SSE2 and make other optimizations for P4/Xeon, are as good as Intel
> claims, anyone in the list using those products?
> On the other hand, isn't MKL just as good as any other good math library compiled
> with Xeon/P4 optimization and extensions (using Intel C++ compiler for
> example).
> Another question, the only difference I can see reading Intel docs between
> P4 and Xeon is more cache on Xeon, and HyperThreading (below P4/Xeon 3Ghz),
> does it really makes a big difference taking into account the much more
> expensive Xeons are. Any one having experience with both platforms.
> Greetings:
> Jose M. P?rez.
> Madrid. Spain.
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