From help-request at octave dot org Mon May 2 03:20:58 2005 Subject: Re: Hardware considerations and Octave From: David Bateman To: "Dmitri A. Sergatskov" CC: Joan Picanyol i Puig , help@octave.org Date: Mon, 02 May 2005 10:18:33 +0200 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 ------------------------------------------------------------- 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 -------------------------------------------------------------