4 ms·

Here's a good presentation from Nvidia on the topic (Cuda specific): https://developer.download.nvidia.com/assets/cuda/files/reduction.pdf https://developer.dow

• rrss 6y ago
  That presentation is pretty old - must be over a decade since the example uses G80. Nvidia has shipped 5 or 6 new architectures since then. Kepler introduced a 'shuffle' intrinsic to accelerate the kind of 'horizontal' reductions discussed in the article, see http://on-demand.gputechconf.com/gtc/2013/presentations/S3174-Kepler-Shuffle-Tips-Tricks.pdf http://on-demand.gputechconf.com/gtc/2013/presentations/S317....