deep learning - a number of naive questions about caffe

Question

I am trying to understand the basics of caffe, in particular to use with python.

My understanding is that the model definition (say a given neural net architecture) must

Answer 1

Yes but, there is diffrent types of .prototxt files for example

https://github.com/BVLC/caffe/blob/master/examples/mnist/lenet_train_test.prototxt

this is for the training and testing network

for commandline training ypu can use a solver file which is also .prototxt file for example

https://github.com/BVLC/caffe/blob/master/examples/mnist/lenet_solver.prototxt