Is it possible to have two rigs hashing as one? I ask more for the purpose of vanity address generation. Say I have two seperate rigs that have 6 7950s. Is it at all possible to run these two rigs as one entity together under one instance of the vanitygen software? Also for theoretical purpose, would I be able to utilize both rigs under one instance of any miner software (e.g. cgminer)? If so, how could one go about this?