Re: [Discuss-gnuradio] How to use VOLK instructions with shorts

2012-08-01 Thread Martin Braun (CEL)
On Tue, Jul 31, 2012 at 05:48:50PM -0700, Josh Blum wrote: > As far as performance, it depends on your CPU. For arm, fixed point > computation could be beneficial. For x86, floating point is already > pretty optimized, so less of a performance gain I assume. > > -josh > > > PS dont listen to me,

Re: [Discuss-gnuradio] How to use VOLK instructions with shorts

2012-07-31 Thread Josh Blum
On 07/31/2012 06:00 AM, Carles Fernandez wrote: > Dear all, > > we are looking into the implementation of correlators in which the two > sequences to correlate are vectors of std::complex. For > gr_complex, we use: > > volk_32fc_x2_dot_prod_32fc_a > > but for shorts we would need something li

[Discuss-gnuradio] How to use VOLK instructions with shorts

2012-07-31 Thread Carles Fernandez
Dear all, we are looking into the implementation of correlators in which the two sequences to correlate are vectors of std::complex. For gr_complex, we use: volk_32fc_x2_dot_prod_32fc_a but for shorts we would need something like volk_16ic_x2_dot_prod_16ic_a, which does not exist. What is the b