Hong Zhang, ANL Dr. Hong Zhang is an assistant computational mathematician in the Mathematics and Computer Science Division of Argonne National Laboratory. His research focuses on time integration methods and sensitivity analysis for large-scale applications in a variety of fields such as power systems and atmospheric modelling. He is also a developer of the Portable Extensible Toolkit for Scientific Computing (PETSc), a parallel toolkit for the scalable solution of scientific applications modeled by PDEs/ODEs/DAEs. Recently he has been working on optimization of PETSc on next-generation supercomputers with Intel Xeon Phi processors (formerly known as Knights Landing or KNL).