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MEX/Mkoctfile questions about matrices algorithms...why slower?
From: |
钟 伟生 |
Subject: |
MEX/Mkoctfile questions about matrices algorithms...why slower? |
Date: |
Tue, 14 Nov 2006 20:07:12 +0000 |
Dear All,
I am trying to use the interface functions between MATLAB/OCTAVE and C to
compute the matrices algorithms( like matrix-matrix multiplication and
additon, matrix-vector multiplication ), such as MEX and DEFUN_DLD.
However, after having compared with Matlab, I found the implemented with
C/C++ are not faster than the same on in Matlab, moreover, it costs more
about 30% time. I compared them both in big and small matrices
multiplications.
The results are the same as before.
Are there good and bad ways of implementing matrix multiplication combining
MATLAB/OCTAVE and C?
Thank you very much!
Best Regards,
Weisheng
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- MEX/Mkoctfile questions about matrices algorithms...why slower?,
钟 伟生 <=