Re: [ublas] question about the atlas and

Subject: Re: [ublas] question about the atlas and
From: K.M.A.Chai_at_[hidden]
Date: 2009-04-01 12:15:59

In terms of speed, note that for the intel platforms, Matlab uses Intel 
MKL (blas and lapack). My experience is that neither ublas, gsl, nor atlas 
beats Intel MKL on intel platforms for large matrices.

Hence, if speed is what you want, you may want to link to the MKL 
libraries.

>
> - My program involves multiplication of very tall matrix by almost 
square matrix (1000000x 30  by 30 x 30). I have performed this 
multiplication using gsl and it produced the result after 4.1second. 
Similar operation, using ublas took about 37second! Similar operation 
takes about 0.5second in MATLAB. I presume that there is a blunder in my 
program but I cannot figure it out:     >
>

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