Re: Hardware considerations and Octave

[David Bateman]

Dmitri A. Sergatskov wrote:

> Joan Picanyol i Puig wrote:
>
> > Nice, thanks. I'll try again. Does Octave use threaded fftw calls as
> > well (even in 2.9.x)?
> >
> > http://www.fftw.org/fftw3_doc/Parallel-FFTW.html#Parallel-FFTW
>
> With fftw it is trickier -- it looks like one needs to write a special 
> code to
> do multithreaded fft. It is not a simple drop-in replacement.

Not that much trickier.. Its just a few lines of initialization and 
clean-up code. The only trickier point I see is selecting how many 
threads to allow, since this is a hard-coded number in the init code and 
should really depend on the machine on which octave is run. It would 
also need some configuration magic to go with it....

Cheers
David



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