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octave-speed
From: |
Rafael Rodríguez Velilla |
Subject: |
octave-speed |
Date: |
Fri, 04 Feb 2005 15:34:51 +0100 |
User-agent: |
Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax) |
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?
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- octave-speed,
Rafael Rodríguez Velilla <=