Ulrike Meier Yang leads the Mathematical Algorithms and Computing group in the Center for Applied Scientific Computing at the Lawrence Livermore National Laboratory (LLNL). She is a software developer for the LLNL hypre library and the Linear and Nonlinear Solvers Topical Area Lead in the Frameworks, Algorithms and Scalable Technologies for Mathematics (FASTMath) SciDAC-5 Institute, which develops and deploys scalable mathematical algorithms and software tools for reliable simulation of complex physical phenomena. Her research interests are numerical algorithms, particularly iterative linear system solvers and algebraic multigrid methods; high performance computing; parallel algorithms; performance evaluation; and scientific software design. 

Prior to joining LLNL in 1998, Yang was a staff member in the Center for Supercomputing Research and Development at the University of Illinois Urbana-Champaign and the Central Institute of Applied Mathematics at the Research Centre Jülich, Germany. She earned her doctorate in computer science from the University of Illinois Urbana-Champaign in 1995 and a diploma in mathematics at the Ruhr University in Bochum, Germany, in 1983. She led the Extreme-scale Scientific Software Development Kit for the Exascale Computing Project from 2020 to 2023. Yang has served on the editorial boards of the Society for Industrial and Applied Mathematics (SIAM) Journal on Scientific Computing, SIAM Journal for Matrix Analysis and Applications, and Journal of Parallel and Distributed Computing. She was named a SIAM fellow in 2024.