How to use get_qc?

The string format for get_qc() varies when using the QVM vs QPU.   

For the QVM, the string can be made up of up to 4 components:

(1) number of qubits (denoted as #q)

(2-optional) topology (currently only relevant for 9q)

(3-optional) "noisy"

(4) "qvm"

Some examples: 

get_qc(“9q-square-noisy-qvm”)

get_qc(“9q-noisy-qvm”)

get_qc(“9q-qvm”)

get_qc(“20q-qvm”)

For the QPU, you simply use the name of the lattice you reserved in your QMI as your string.