Holy crap thats some setup you have going! that's like what 4-5 v100s?

But anyway, if you want to save the point to start again later you can take the number in the brackets, in your example  the number would be 812,819,340,591,104 and covert that from decimal into hexadecimal here: https://brainwalletx.github.io/#converter which in the example would output 02e34140100000, you would just use that as your keyspace start point next time you want to run it.

It looks to me though that you are trying to crack a single address by running through the entire 2^160 keyspace? Would you not be better off trying to crack challenge address #120 with pollard kangaroo software? https://github.com/JeanLucPons/Kangaroo