Calculating inner-product of two tensor networks efficiently

[ACE07-Sev]

Greetings dear @jcmgray ,

Hope you are well sir. I had a quick question if you have the time. I was wondering about two questions:

1. How to construct an MPS/MPO from qtn.TensorNetwork efficiently (mainly considering memory, right now I get 1TiB error for 100 qubit circuit)?
2. How to calculate the full contraction of two MPS/MPO again given the memory allocation needed?