Re: [Discuss-gnuradio] Volk update to master/next

[Andrew Davis]

>[ 25%] Building CXX object 
>gnuradio-core/src/lib/CMakeFiles/gnuradio-core.dir/general/gr_add_ff.cc.o
>/home/glneo/gnuradio/gnuradio-core/src/lib/general/gr_add_ff.cc: In member 
>function 'virtual int gr_add_ff::work(int, gr_vector_const_void_star&, 
>gr_vector_void_star&)':
>/home/glneo/gnuradio/gnuradio-core/src/lib/general/gr_add_ff.cc:59: error: 
>'volk_32f_x2_add_32f_u' was not declared in this scope

breaks on this over here in FreeBSD land. In volk.h:

>extern VOLK_API p_32f_x2_add_32f_a volk_32f_x2_add_32f_a;
>extern VOLK_API void volk_32f_x2_add_32f_a_manual(float* cVector, const float* 
>aVector, const float* bVector, unsigned int num_points, const char* arch);
>extern VOLK_API struct volk_func_desc 
>volk_32f_x2_add_32f_a_get_func_desc(void);

>extern VOLK_API p_32f_x2_add_32f_u volk_32f_x2_add_32f_u;
>extern VOLK_API void volk_32f_x2_add_32f_u_manual(float* cVector, const float* 
>aVector, const float* bVector, unsigned int num_points, const char* arch);
>extern VOLK_API struct volk_func_desc 
>volk_32f_x2_add_32f_u_get_func_desc(void);

It finds _a but not _u, I'm not really sure whats going on here.

On Sat, Mar 3, 2012 at 12:00 PM, Marcus D. Leech <address@hidden> wrote:
> Hi everyone,
> I just wanted to inform everyone that we made a significant update to
> master/next tonight to start using Volk. This merges in my safe_align branch
> that I mentioned a couple of weeks ago.
>
> After verifying that it was working on various platforms, including the E100
> (and therefore ARM/NEON systems), we went ahead with the merge tonight. With
> luck, the only thing you'll notice is improved speed of your GNU Radio
> programs.
>
> Please let us know if you experience any trouble from this. We're hoping to
> cut a 3.5.2 version of GNU Radio this weekend that will incorporate this
> change.
>
> Take a look at my "Volk Benchmarking" and "Volk Integration into GNU Radio"
> entries at www.trondeau.com/blog for some more details if you're interested
> in what all of this means.
>
> Thanks,
> Tom
>
> So far, so good.  I had to recompile gr-rds.
>
> I'm running two different Gnu Radio apps on my machine right now--one using
> USRP the other using the sound subsystem.
>
> My seat-of-the-pants estimate is that overall performance has improved about
> 15%.
>
> --
> Marcus Leech
> Principal Investigator
> Shirleys Bay Radio Astronomy Consortium
> http://www.sbrac.org
>
>
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