Re: Multi Channel FFT Audio Anaylzer + Question
Re: Multi Channel FFT Audio Anaylzer + Question
- Subject: Re: Multi Channel FFT Audio Anaylzer + Question
- From: Philippe GRUCHET <email@hidden>
- Date: Wed, 27 Jun 2007 04:52:19 +0200
Hi Beni,
sorry for the late reply.
You're welcome! ;-)
Anyway, thanks for the pointer. One of the linked pages answered my
question:
On an Intel machine vectorized code uses the SSE extensions. So far
so good. :-)
Vectorized using the "Accelerate framework".
It's natively Altivec on PPC G4 and G5 machines, scalar on PPC G3,
and SSE (SSE 2 in fact) on PPC i 386 (or just x86).
What I don't know yet is if it's so fast with "Accelerate" for x86
than using explicit SSE 2 vectorizations statements, when possible.
... ?
In the other hand, I know it works so fast on G5 with Accelerate
statements than with explicit Altivec statements.
It seems to be even more stable too, especially on G5 dual and quad
PowerMac.
Well, some of the good reasons to use Accelerate as much as possible ;-)
Cheers,
Philippe
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