Re: octave on alpha?

[heberf]

It used to be that gcc was the best compiler for Alpha but that's not true 
anymore.  The compilers from Compaq are really incredible.  I think they are 
downloadable for free for linux right now.  As far as Octave goes you won't be 
able to use Compaq's C++ compiler (I don't think).  But you can use the Compaq 
fortran 77 or fortran 90 compiler to compile the libraries and the compile the 
rest with gcc.  My understanding is that there is a VERY significant 
performance 
improvement with the Compaq compilers compared to any other fortran compiler on 
alpha (even quite expensive ones).  

I should add two comments here.  (1) My information pertains mostly to Tru64 
UNIX (previously DIGITAL UNIX, previously OSF, ...), (2) I'm not sure how much 
of your performance issues come from the the fortran libraries versus the 
interpretter so I can't tell you how much better you'll do by switching 
compilers.

Heber Farnsworth

> Hello.
> 
> I am working on communication systems and I work with matlab.
> I need quite a lot of computer resources and I tried octave on my linux
> computer and compared it with matlab and there was nearly a times two
> difference in favour of Matlab.
> I only use basic linear algebra :
> random numbers,
> vector and matrix operations element to element and 'normal' operations,
> lots of sums
> 
> I wondered if some of you had or have the ocassion to work on a Alpha with
> octave and if yes have you made a few benchmarks? Perhaps the compiler takes
> advantage of the processor architecture?
> 
> Maby someone also can tell me how could I speed up the octave processing on
> my current system
> 
> Thank you if you can help me.
> 
> Please also reply to address@hidden
> 
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