On 10/25/2016 12:22 PM, Larry Evans wrote: [snip]
From the above, the LibFlatArray and SSE methods are the fastest. I'd guess that a new "SoA block SSE" method, which uses the _mm_* methods, would narrow the difference. I'll try to figure out how to do that. I notice:
#include <mmintrin.h>
doesn't produce a compile error; however, that #include doesn't have the _mm_add_ps used here:
https://github.com/cppljevans/soa/blob/master/soa_compare.benchmark.cpp#L621
Do you know of some package I could install on my ubuntu OS that makes those SSE functions, such as _mm_add_ps, available?
[snip] Never mind. Google for: __mm128 lead to: http://stackoverflow.com/questions/11679741/vector-of-mm128-wont-push-back and change of #include to: #include <emmintrin.h> which solved problem. particle_count=1,024 frames=1,000 minimum duration=0.0371714 comparitive performance table: method rel_duration ________ ______________ SSE_opt 0.330574 SSE 0.440405 Flat 0.904265 SoA 0.911574 Block 0.97398 AoS 1 StdArray 1.15079 LFA undefined Compilation finished at Tue Oct 25 12:36:33