Re: [ggt-devel] Platform Specific Optimization of GMTL

[Kevin M. <ke...@vr...>]

you'll want to compare the compiled result to the compiled result of your 
optimized code.  I'm guessing that even with optimizations the gcc 
compiler wouldn't be able to vectorize automatically what is currently in 
gmtl.  you may have to rearrage the calls in gmtl so that gcc can optimize 
for the vector processor - or you may have to write specific platform 
code.

as usual be sure to test for these features before implementing, so that 
you'll be well informed and write good stuff. :)


kevin

On Sun, 29 Jun 2003, Allen Bierbaum wrote:

> Galen Faidley wrote:
> > I was wondering what the best way to perform platform specific 
> > optimization on GMTL was?  Apple provides a vector library for OS X that 
> > will use the G4 and G5's vector units.  It would be nice if GMTL on OS X 
> > was basically just a wrapper around this library.
> > 
> > Thanks
> > Galen
> 
> If you want to contribute some code that can allow for OSX 
> optimizations, we are more then happy to take them.
> 
> That said, we have tried to keep GMTL as platform neutral as possible 
> and we rely upon the compilers to be smart enough to help out when 
> optimizing the code.  So if Apple has contributed optimizers to gcc to 
> help make use of their hardware, you may already be getting the benefit 
> of it.
> 
> -Allen
> 
> 

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