[SciPy-user] using (c)vode [was: odeint rtol and atol default values)]

Steve Schmerler elcorto at gmx.net
Tue Jun 27 17:12:57 CDT 2006


Doug Latornell wrote:
> Hi Steve;
> 
> I've been happily using the ode class with the vode integrator for a few 
> months now.  I rewrote a model from Octave into Python/NumPy/SciPy.  
> Agreement between the Python/ode/vode code and the Octave one was good.  
> The model is substantially faster in SciPy than it was in Octave, but 
> there are a lot of factors that changed (processor, OS, etc.).

Did you have a special reason for chosing vode/ode over lsoda/odeint 
(speed, accuracy, ...)?

If I'm right, Octave uses lsode 
(http://www.gnu.org/software/octave/doc/interpreter/Ordinary-Differential-Equations.html#Ordinary-Differential-Equations)

cheers,
steve

-- 
Random number generation is the art of producing pure gibberish as 
quickly as possible.



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