Obtaining the amount of required top/bot blobs for a layer.

[TimZaman]

Hi,

I guess each layer expect at least X top and bottom connections, For example, the layer accuracy shouldn't have a top and should have 2 bottoms. A data layer's output had no bottom and (usually) two tops, often canonically called data and label. Dropout and ReLu's obviously have 1 bot and 1 top.

When a layer has more than 1 input, the order is important. I've been using Caffe since it came out, but never realized this. This is correct right?

Is there a place where such things are defined? It's not in caffe.proto, and I can't find it in the docs. I could deduce it by hand from the .cpp source files I guess. (1) Is there a better way and (2) will there be a better way for Caffe2?