big design uses few resources

oh, whoops! The only things in my design are on-chip memory and a bunch of processors with custom instructions added, and I'm using SOPC builder, not Qsys if that makes any difference. I've also already made another system with just one processor while trying this out.

I guess what I don't understand is - I don't need any external outputs for anything (that I am aware of), so what kind of outputs would I create just so that I have outputs in the system and it doesn't optimize the design away?