I went to a presentation at my school about this computer. There are two main goals to the project. One is to be a usable supercomputer meaning that it will be much more userfriendly to actually use to write software for. Another is the goal of actually getting 1 petaflop of sustained performance. Whats interesting is they were able to get the building under budget and ahead of schedule due to the housing crisis. They also want to make the computer much more energy efficient and they aim to be more efficient than modern datacenters.