?iga Lenar?i? wrote:
>
> On Aug 24, 2009, at 8:41 PM, Raymond Toy wrote:
>>>
>> That might be expected if you're using a very recent version of SBCL
>> (and 19f or later CMUCL). I know in cmucl 19f, complex arithmetic uses
>> sse2 by default, and that can be significantly faster because the
>> operations are vectorized. The real/imag array version will suffer
>> quite a bit since the complex operations probably won't be vectorized.
>
> Forgot to comment on that bit -
> I use SBCL 1.0.30 (latest) but I don't think they have imported these
> improvements from CMUCL.
I think SBCL's implementation of complex arithmetic with sse2 is totally
separate from CMUCL's implementation.
Ray