octave-speed

[Rafael Rodríguez Velilla]

Hello all,

  I'm new to octave and I'm planning to use it to simulate DSP algorithms.

  Speed is a matter of concern in my simulations. I have made a stupid 
test to compare octave's performance with Matlab's performance:

m=1:100000;
n=8;
for i=1:99999
  n=sqrt(sqrt(m(i)*m(i+1))*n);
endfor
n

In the same computer it takes 10 seconds to run under linux-octave but 
less than a second under Matlab.

I have compiled octave 2.1.64 with shared libraries with gcc3.2...
... is there a way to improve its performance?
For example by compiling it with CPPFLAGS=-march=i686???

I have read that maybe using ATLAS improves the performance.

Any hints on how to compile it to run faster?



-------------------------------------------------------------
Octave is freely available under the terms of the GNU GPL.

Octave's home on the web:  http://www.octave.org
How to fund new projects:  http://www.octave.org/funding.html
Subscription information:  http://www.octave.org/archive.html
-------------------------------------------------------------