cudnnConvolutionBiasActivationForward API Usage

Hello

I have a question regarding CUDNN Convolution API cudnnConvolutionBiasActivationForward:

Page 64 mentions this API performs eqn:
y = act ( alpha1 * conv(x) + alpha2 * z + bias )

  1. What is z in this equation ?
  2. How to choose alpha2?
    3.What is zdesc ?

Is there a working example for this API available ?

Thanks in advance !!!

I have the same question.
From the description of alpha2 it is blending the previous output of this layer into the new output.

The best place to ask cudnn questions is on the forum dedicated to it:

https://devtalk.nvidia.com/default/board/303/deep-learning-libraries/