28 Feb
2004
28 Feb
'04
6:01 p.m.
On Sat, 2004-02-28 at 16:53, Steve Harris wrote:
Do you have the SIMD optimisations on, and have you
tried the
"halfcomplex" mode of FFTW, thats fine for audio, and saves some memory
i/o.
No, because SIMD optimizations are broken. I've been unable to compile
version which is able to run on all >=i686 platforms and includes 3DNow
&/ SSE stuff. It just crashed on my Thunderbird-core Athlon.
I use *_execute_dft_r2c().
Also SIMD optimizations doesn't do any good on non-x86 architectures
like SPARC, Alpha or HP-PA.
Anyway, I'm going to add some SIMD stuff to Ooura also.
--
Jussi Laako <jussi.laako(a)pp.inet.fi>