BVLC/caffe — pull request #1104 by shelhamer (2014-09-18 05:16:05+00:00)
Title: Document and Test Convolution

To thoroughly check convolution, the output is compared against a reference implementation by explicit looping. Simple and group convolution by the Caffe and cuDNN engines are checked against the reference.

The reference convolution rolls 8 loops deep.