Roger Waleffe is a PhD student in Computer Science at the University of Wisconsin-Madison working under the supervision of Prof. Theodoros (Theo) Rekatsinas (now at ETH Zurich). A few months ago one of our group members (Brennon) saw Rover's talk at EuroSys and thought it was pretty rad, so we invited Roger to give the same talk to the Club today. (You can decide, what's more prestigious, EuroSys or 6 random dudes from Boston?). Roger graciously agreed and gave a superb talk on MariusGNN, his recent work to make a blazingly fast, super resource efficient system for graph neural networks. We hope you enjoy the talk as much as we did!