Monthly Archives: February 2017

Performance comparison between CPU and GPU

To compare the performance of floating point arithmetic between Intel CPU and Nvidia GPU, I write some code to do the dot-product operation of two vectors with size of 2GB. The code for CPU test is using AVX instrument:

and use

to compile it. It cost 7.5 seconds… Read more »

Use mxnet to classify images of birds (third episode)

After using CNN in previous article, it still can’t recognize the correct name of birds if the little creature stand on the corner (instead of the center) of the whole picture. Then I started to think about the problem: how to let neural-network ignore the position of the bird in… Read more »