Both my instances share one DTN data source... it works very well. All happens automatically. Nothing to do on your part. Works very well... I see no data lag between the two instances. But I am only feeding live about 35 instruments. Nothing more.
IB I don't know so I can't comment. As I say, I share info via a file... it's not perfect and not ideal for sure... as I say, I'd like multi-core support for AB which has been on the slate for a long time now. As these 'non ideal' solutions are fine for backtesting etc - i.e. no time dependent (which is what AB has in the past seemed very focused on in terms of development), but they are completely useless for real time day trading where seconds matter... Anyway, just my minor gripe for the day (as I try again to squeeze more out of my AFL code in terms of execution time!).
