Hi Johannes, Thank you very much! Thanks for also providing an alternative solution if I were to define the vector as a volk vector. Please allow me to confirm my understanding of how to use volk vectors. So with my current definition using std::vector <gr_complex> my_val (240); you and Brian suggested the solution should look as follows:
volk_32fc_s32fc_multiply_32fc(my_val.data(), my_val.data(), scale, 240); Based on your volk vector suggested solution, my interpretation is that I would write my code as follows: volk::vector <gr_complex> my_val (240); .... volk_32fc_s32fc_multiply_32fc(my_val, my_val, scale, 240); // Or do I need to use &my_val Also, my current code has the following: #include <volk/volk.h> do I in addition need to include #include <volk/volk_alloc.hh> ? Thank you very much! George On Tue, May 3, 2022 at 3:35 AM Johannes Demel <de...@ant.uni-bremen.de> wrote: > Hi George, > > All VOLK functions require pointers as you already noticed. You can > access the underlying data structure of a vector via its `.data()` > method as Brian noted. > Moreover, you can use `volk::vector` if you want your vectors to be > aligned. `volk::vector` is almost a `std::vector` but uses its own > allocator that ensures alignment. > `volk::vector` is available in `volk/volk_alloc.hh`. Since it is a C++ > only feature. > > Cheers > Johannes > > On 03.05.22 04:28, George Edwards wrote: > > Hello GNURadio Community, > > > > I am having a problem using the above function with vector parameters. > > If I use an array say: > > gr_complex my_val[240]; > > volk_32fc_s32fc_multiply_32fc(my_val, my_val, scale, 240); > > > > It works! But if I change my_val to be a vector like below, it fails: > > std::vector <gr_complex> my_val(240); > > > > The reason I need to use a vector is that with arrays, the size must be > > known at compile time, while with vectors one can build it at runtime. > > > > I would appreciate any suggestions. > > Thank you! > > > > George > >
