GFortran 44 optimizations and Intel SSE4

[Tim Prince]

On 11/1/2011 12:42 PM, Jacob Anderson wrote:
>
> Thanks for the responses! Yes, I did mean the "-Ox" generic options.
>
> We are compiling against Intel X5670 and X5620, so no desktop architectures.  The "SSE4.2" extensions are of interest for their vector capabilities. Is there any online documentation on the optimization algorithms used when the SSE4 optimizations are enabled?
>
> We are using gfortran44 version 4.4.4 20100726:
>

X86_64 generic options include auto-vectorization, which might 
occasionally be improved by adding -msse4.  i386 generic options do not; 
you would require an option such as -march=core2.


-- 
Tim Prince