Takayuki Muranushi wrote: > >> * vector-fftw with wisdom was more than 1/2 times faster than fftw in > >> C with wisdom (and with communication overhead.) > > > I would be suspicious of that result. Calling a C function from a library > > should be slower from Haskell than from C. > > Sorry for the confusion, What I meant is that vector-fftw version takes > more time than C version, but less than twice.
That makes much more sense. Whether you're calling fftw from C or from Haskell, its still the fftw library doing most of the work. As you increase the FFT length, the difference between C and Haskell should decrease. Cheers, Erik -- ---------------------------------------------------------------------- Erik de Castro Lopo http://www.mega-nerd.com/ _______________________________________________ Haskell-Cafe mailing list [email protected] http://www.haskell.org/mailman/listinfo/haskell-cafe
