Re: SSE
Re: SSE
- Subject: Re: SSE
- From: "tahome izwah" <email@hidden>
- Date: Thu, 15 May 2008 08:57:42 +0200
Did you check your Xcode project settings to use the SSE extensions?
Do you set some specific options to treat underflow conditions?
--th
2008/5/15 Joe Lake <email@hidden>:
> hello all,
>
> I have a vst written for windows that I'm building on os x. the vst is
> extremely processor intensive and uses the sse vector math functions define
> in xmmintrin.h. I didn't have to change any of this code to get it to build
> on os x.
>
> my computer is a 2GHZ core duo with 2GB RAM which boots both tiger and
> windows xp. I'm testing the vst in max/msp. on windows it uses 34% of the
> cpu, but on os x it uses 100% of the cpu.
>
> can anyone think of any reasons this would be happening? is it possible
> that the _mm_etc functions are not actually using the SIMD hardware on os x?
> my project compiles fine regardless of whether I pass -msse to the compiler.
> does anyone else have any experience using these extensions?
>
> thanks a lot!
>
> Joe
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