On 16.09.2015 13:29, West, Nathan wrote: > There is a volk_32f_s32f_multiply_32f. It doesn't operate in-place, but > almost none of the VOLK kernels do. I think it's safe to give the same > output buffer as input buffer. (I've heard that doing stuff in-place is > noticeably better, but I've never tested this and I'm a tad skeptical. > I'll buy someone a beer whenever I see them if they prove me wrong with >>= 5 kernels)
I've nagged people about this before, but I'd like to make this an official thing: Put this into the VOLK docs (i.e. state in the contract that in- and output buffers may be the same) and then include that in the unit tests, so we don't end up with some arcane ISA that will not allow this. In-place VOLK calls are very useful for many blocks, and I've shied away from using them myself in the past just because I wanted to be sure they'll work in the future. M _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
