You can calculate the BTU/hr output required to bring 10 liters of water to boil in a reasonable time. What you will probably learn is that you need a stove with a lot more output than any available backpacking stove.

A different approach might be to carry more stoves and divide the cooking up. Say, for example, five stoves boiling 2 liters apiece. This would probably require dividing the cooking chores (and the weight of carrying the cooking gear in one's pack) up as well.

Just a thought...