Reading the Integrals will break HPC

[anbenali]

All ranks read the fcidump file.

def load_integrals(fcidump_path,)

Does not take the communicator and does not have a brodcast at the end. If you submit this code on Theta with 128nodes trying to read a 1Gb input file you will receive an angry mail from management.

[TApplencourt]

The goal is to use HDF5 and that each rank will read from disk but from a different offset. We don't want to send tera byte of data.
Ye told me it was the way to do :D