Re: Slow sqp execution in Ubuntu compared to Win7?

[Martin Helm]

Am Freitag, 2. April 2010 17:38:14 schrieb Tottish:
> Hello!
> I'm pretty new to Octave but I've managed to write an algorithm for a
> nonlinear optimization problem that I have using the sqp-function. It's
> working great but after I went over to a Linux machine the execution speed
> was considerably lower which seems odd to me. I'm sure I've missed
>  something so please correct me.
> 
> I've set a tic-toc timer to measure the execution speed and on my AMD
> Sempron 3600+ running Win7 64bit I get execution speeds of about 0.08
> seconds while I get around 0.25 seconds on a dualcore atom motherboard
> running Ubuntu 9.10 32-bit.
> Granted, the dualcore processor most likely doesn't use it's full potential
> in the 32-bit environment and yes it is a bit slower but still, doesn't
>  this seem a little off?
> 
> My guess was that Linux was a more suitable environment for fast responses
> and would produce a similar or shorter execution time but I am just
>  starting out with Linux so I don't actually know much about that.
> 
> Could someone shine a little light on this?
> Thanks for a great application!
> /Tottish
> 
Do you compare the same octave versions on linux and windows?
Which version do you use?

If you compare for example 3.0.x on linux with 3.2.x on windows it will sure 
be faster on windows simply because the 3.2 is much more optimized.

- mh