This session is about how processors physically talk to each other, so these are interactive topology demos, not code files. Open them full-screen and show them live in class.
▶ Open the Interactive SlidesPick a topology (bus / crossbar / mesh / torus / hypercube), see it drawn, and read its degree, diameter, bisection, cost, and a one-line verdict. Slide the size and watch the numbers move.
Slide N and watch diameter vs cost grow across all five topologies on a log-scaled chart. See N² explode, √N slope up, and log₂N stay nearly flat — the shapes that decide scalability.
No installs, no compilers — these run in any modern browser. Real OpenMP / MPI / CUDA code arrives in Unit IV.