What new challenges will exascale computers present to the high-performance computing field? Find out in this week's #PeopleOfACM profile as we interview Torsten Hoefler, Professor, Swiss Federal Institute of Technology (ETH) Zurich, and Chief Architect for Machine Learning at the Swiss National Computing Center. Hoefler was recently named an ACM Fellow for foundational contributions to high-performance computing and the application of HPC techniques to machine learning. In his People of ACM int