Leadership

Rick Stevens is responsible for ongoing research in the computational and computer sciences from high performance computing architecture to the development of tools and methods for bioinformatics, cancer, infectious disease, and other challenges in science and engineering. He has significant responsibility in delivering on the national initiative for exascale computing and developing the national initiative in AI. His research is focused on developing artificial intelligence methods for a variety of scientific and biomedical challenges.

Michael E. Papka is a senior scientist whose laboratory leadership roles and research interests relate to high performance computing in support of scientific discovery. In the CELS directorate, Mike supports programmatic efforts spanning Argonne that contribute to and benefit from advanced computing. At ALCF, he oversees a U.S. Department of Energy user facility that houses two of the world’s fastest supercomputers and enables the research community to pursue major discoveries and innovations through open science.

Brad Ullrick oversees strategic and tactical operational and administrative efforts in support of the CELS directorate’s programmatic mission. He leads a team responsible for the development, implementation, and management of efficient, cost-effective, and high-quality operational support activities. A registered patent attorney, Brad has been at Argonne since 2007 where he has played a pivotal role in strengthening operational efficiency and supporting research programs.

Dionysios Antonopoulos is a microbiologist studying how communities of microorganisms live and thrive together in a variety of environments. As the head of the Biosciences division, he is particularly interested in understanding how microbial communities maintain their stability in different environments. As a result, his research team is actively involved in creating new approaches for minimizing the complexity of natural microbial communities so that they can be studied in the laboratory. 

Ian Foster’s research contributions span high performance computing, distributed systems, and data-driven discovery.  He has published hundreds of scientific papers and eight books on these and other topics.  Methods and software developed under his leadership of the Data Science and Learning division, underpin many large national and international cyberinfrastructures. 

Salman Habib’s interests and contributions cover a broad span of research, from quantum field theory and quantum information to the formation and evolution of cosmological structures. Leading the Computational Science division, he heads projects in algorithms and computational methods, high performance computing, and advanced statistical methods and machine learning. 

Valerie Taylor’s team provides the numerical tools and technology for solving our nation’s most critical scientific and engineering challenges, and develops software for some of the most powerful computer systems in the world.  As director of the Mathematics and Computer Science division, she focuses her research on performance analysis, power analysis and resiliency, and modeling of parallel, scientific applications.