Re: [Discuss-gnuradio] GNU Radio release 3.6.3 available for download

[Michael Dickens]

On Jan 21, 2013, at 11:17 PM, Albert Chun-Chieh Huang <address@hidden> wrote:
> How can I make gnuradio and volk be optimzed for Core i7? generic_orc seems 
> not best optimized for core i7. 

Hi Albert - I'm glad to hear of your general success in using MacPorts for GNU 
Radio.  For your particular question, I'll let the VOLK folks address the broad 
question regarding runtime selection of VOLK kernels / machines.  From my 
perspective, I'd like to know which kernels / machines were detected at 
configuration time.  You can get this info independent of the install via:

{{{
sudo port -d configure gnuradio +docs +grc +orc +python27 +qtgui +sdl +swig 
+uhd +wxgui configure.compiler=macports-gcc-4.7
}}}

and watch the output.  Somewhere part way through, you'll see a list like this 
one (which is for my "old" laptop's Intel Core 2 Duo (when using the above 
command, btw):

{{{
-- CPU width is 64 bits, Overruled arch 32
-- Available architectures: 
generic;64;3dnow;abm;popcount;mmx;sse;sse2;orc;norc;sse3;ssse3;sse4_a;sse4_1;sse4_2;avx
-- Available machines: 
generic_orc;sse2_64_mmx_orc;sse3_64_orc;ssse3_64_orc;sse4_a_64_orc;sse4_1_64_orc;sse4_2_64_orc;avx_64_mmx_orc
}}}

If you see these options, then there's probably a way to select kernels / 
machines are runtime; but, as I said, I'll leave that question up to the VOLK 
developers. - MLD