Re: OON: Comparison between Fortran & C++

From: Andrew J. Cleary (cleary1@llnl.gov)
Date: Tue Mar 28 2000 - 14:31:37 EST


At 01:55 PM 3/28/00 +0100, you wrote:
>Kent Budge wrote:
>
>> I find it curious that this entire thread began with the question, "How
>> do C++ and Fortran compare for numerical programming?" It always seems
>> to come around to array performance. I suggest this reflects a curious
>> case of tunnel vision.
>
>It seems to be a fact that numerically intensive code spends a lot of time
>performing matrix maths. If this means `array performance' is the limiting
>factor in performance why it it `tunnel vision' to concentrate on it?

because matrices in real codes are sparse and rarely implemented
with "arrays".

Andy

Dr. Andrew J. Cleary
Computational Scientist
Center for Applied Scientific Computing
Lawrence Livermore National Lab
L-561, PO Box 808, Livermore, CA 94551
925-422-1939

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