Op Flatten not supported

[MarkWijkhuizen]

When computing the macs/params using the get_model_complexity_info function I get the following message using Torch 2.2.1.

Op Flatten is not supported at now, set FLOPs of it to zero

Naturally, the Flatten operator is non-parameterized and should have 0 FLOPs.

Could you add the Flatten operator?

[sovrasov]

Flatten is a manipulation with memory (sometimes even copy is not required), and therefore it does not contribute to the overall number of macs/params. The warnings are printed for further analysis, and for some operations they can be ignored.