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Re: FYI: optimizing certain matrix arithmetic


From: Jaroslav Hajek
Subject: Re: FYI: optimizing certain matrix arithmetic
Date: Fri, 25 Sep 2009 07:40:47 +0200

On Fri, Sep 25, 2009 at 7:33 AM, Shai Ayal <address@hidden> wrote:
> On Fri, Sep 25, 2009 at 8:26 AM, Michael D Godfrey
> <address@hidden> wrote:
>> On 09/24/2009 10:16 PM, Jaroslav Hajek wrote:
>>>
>>> If you compiled Octave yourself, you can hardly call that a "standard
>>> distribution".
>>>
>>
>> Sorry I was not exactly precise.  This will be a standard
>> distribution to due course.
>>>
>>> Is there no ATLAS package for Fedora?
>>>
>>>
>>
>> Yes, there is atlas and atlas-devel, and some other things
>> with atlas in their name.  Does Octave use these?
>
> ATLAS is an attempt to empirically optimize BLAS, and acts in as a
> replacement for the BLAS routines. As such it will provide better
> performance. AFIK matlab uses ATLAS.

Does it? I thought they shipped Matlab with the MKL from Intel...
which usually outperforms ATLAS somewhat, at least on Intel CPUs...


-- 
RNDr. Jaroslav Hajek
computing expert & GNU Octave developer
Aeronautical Research and Test Institute (VZLU)
Prague, Czech Republic
url: www.highegg.matfyz.cz



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