Xian-He Sun is a University Distinguished Professor of Computer Science at the Department of Computer Science in the Illinois Institute of Technology (IIT). He is the director of the Scalable Computing Software laboratory at IIT and a guest faculty in the MCS Division at the Argonne National Laboratory. Dr. Sun is an IEEE fellow and is known for his memory-bounded speedup model, also called Sun-Ni’s Law, for scalable computing. His research interests include data-intensive high-performance computing, memory and I/O systems, software systems for big data applications and performance evaluation and optimization. He has over 250 publications and 6 patents in these areas. He is the Associate Editor-in-Chief of the IEEE Transactions on Parallel and Distributed Systems, a Golden Core member of the IEEE CS society, the past chair of the CS Department at IIT and has served on several editorial boards of professional journals in the area of parallel processing.