Solved by chetan_patil in post #6 
              
              
                Hi, 
If I’m not wrong, you have an input of [6,100,h,w] and you want to apply 100 such 3x3 kernels on them such that each Kernel will be applied on only  one channel, this leading to output size of [6,100,h,w]. 
Right ? 
If so, you can use this 
nn.Conv2d(in_channels=100, out_channels=100, groups=10…