# Patrick H. Worley

Patrick H. Worley is a Science and Technology Staff Member in the Computer Science and Mathematics Division (CSMD) of ORNL. He earned his PhD in computer science from Stanford University, specializing in numerical analysis and parallel computing. He joined CSMD in 1987.

Worley's research interests and activities include (1) parallel algorithm design, implementation, and optimization for scientific computing, especially for applications in earth system modeling, fusion energy sciences, and astrophysics, (2) performance evaluation and optimization of parallel programs, (3) performance evaluation of high performance computing systems, and (4) numerical algorithms for ordinary and partial differential equations. Within the Climate Change Science Institute (CCSI), Worley focuses on the performance evaluation and optimization of the Community Earth System Model (CESM) and on the development of new numerical algorithms and new component models for inclusion in the CESM. He also uses CESM components and kernels to evaluate computing systems, so as to determine suitability for production runs of the CESM and to inform the computing industry as to the computational characteristics and needs of computational climate science.

Worley is a co-chair of the CESM Software Engineering Working Group, the principal investigator for the Performance Engineering and Analysis Consortium End Station DOE INCITE (Innovative and Novel Computational Impact on Theory and Experiment) project, and an associate editor of the journal *Parallel Computing*. He is a member of the Association for Computing Machinery and of the Society for Industrial and Applied Mathematics.