Re: AltiVec optimization in Cocoa?
Re: AltiVec optimization in Cocoa?
- Subject: Re: AltiVec optimization in Cocoa?
- From: Phillip Morelock <email@hidden>
- Date: Sun, 19 May 2002 12:20:31 -0700
What does this "do" to people running G3 processors? Do you have to compile
two versions, or does the G3 just process the vector stuff sequentially
instead?
fillup
On 5/19/02 9:16 AM, "email@hidden" <email@hidden> wrote:
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Can't you use GCC3 and use the flag -faltivec? It is slows it down a
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ton because it can't use the precompiled headers, but it also seems to
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deliver better performance on my G4.
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Owen Anderson
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On Sunday, May 19, 2002, at 07:08 AM, Fred Mandrea wrote:
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+ Mamdouh ; <email@hidden> wrote:
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Is there away to optimize Cocoa Apps for the velocity engine (AltiVec)?
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Or is it already done for us (I doubt it, but i still hope :)
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I guess Cocoa routines are (at least partly) optimized for Altivec. But
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to
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optimize your own computations, I think there's no other way than
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explicit
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use of Altivec functions.
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To get started with Altivec, you may take a look at this article on
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O'Reilly
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network : <http://www.macdevcenter.com/pub/a/mac/2002/04/05/altivec.html>
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(and then, of course, you should visit Apple's Altivec home page :
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<http://developer.apple.com/hardware/ve/>)
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HTH,
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--
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Fred
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