Assertion and Testing¶
Chainer provides some facilities to make debugging easy.
Function uses a systematic type checking of the chainer.utils.type_check module.
It enables users to easily find bugs of forward and backward implementations.
You can find examples of type checking in some function implementations.
Most function implementations are numerically tested by gradient checking.
This method computes numerical gradients of forward routines and compares their results with the corresponding backward routines.
It enables us to make the source of issues clear when we hit an error of gradient computations.
The chainer.gradient_check module makes it easy to implement the gradient checking.