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

[Michael Dickens]

Albert - Tom (as a VOLK developer) has some good advice:

(1) Try installing GNU Radio without the +orc variant, and seeing what the 
configure output is; combined with:

(2) Run "volk_profile" after you've installed GNU Radio.  It will test all of 
the kernels and create a $HOME/.volk/volk_config file.  If you look in that 
file, it will tell you what architectures are to be used for each kernel.

Tom - I'm wondering what "volk_profile" is doing?  It looks like it's running 
through (all?) available kernels for a given algorithm and finding the "best" 
(fastest?) one.  Is this correct?

On Jan 23, 2013, at 9:50 AM, Tom Rondeau <address@hidden> wrote:
> This is the same command as above, or am I missing something?

The differences in Albert's -original- install command and mine is the "-d": 
enable debug output; and "configure" instead of "install".  My goal is to have 
the GNU Radio configuration stage printout what it is doing within the MacPorts 
environment; one can then cherry pick the specific lines related to VOLK 
(architectures / machines) and send them to the list for the VOLK developers.  
I have no practical developer knowledge of VOLK, but I'm sure there are folks 
on this list who do and can make sense of the output.

So, for my ~2009 MacBook Pro, Core 2 Duo and MacPorts GCC 4.7 (latest), I get:
____________________
-- 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
____________________

On Albert's computer with Quad-core Core i7 and similar software, he gets:
____________________
-- CPU width is 64 bits, Overruled arch 32
-- Available architectures: 
generic;64;3dnow;abm;mmx;sse;sse2;orc;norc;sse3;ssse3;sse4_a;sse4_1;sse4_2
-- Available machines: 
generic_orc;sse2_64_mmx_orc;sse3_64_orc;ssse3_64_orc;sse4_1_64_orc
____________________

- MLD