A supercomputer around the sun. What for?

Or¬†Matrioshka brain like/Dyson swarm/Server Sky as navigational computer and other uses of it. And a¬†different stuff of the scale. First of all, let’s determine the scale of the system, let say 500 W per node consists of 100W processor(s), 300W of graphic card(s) (kinda), 100W for other needs. the power of the sun is 3.82e26W, … More A supercomputer around the sun. What for?