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Horst D. Simon is a well-known computer scientist and mathematician in the United States. He has been an instrumental figure in the fields of high-performance computing and computational science, holding key positions at the Lawrence Berkeley National Laboratory (LBNL) and the National Energy Research Scientific Computing Center (NERSC) for several years.

Simon's interest in computing began while he was studying physics in the early 1980s. He earned his Ph.D. in Mathematics from the University of California, Berkeley in 1982 [1]. Since then, he has made significant contributions to the field of high-performance computing.

Simon played a key role in the development of the "Globus Toolkit," a software framework for building large-scale distributed systems [2]. The toolkit has been used to create some of the world's most powerful computing infrastructures, including the TeraGrid and the Open Science Grid. In addition, Simon played a significant role in the development of the Earth System Grid, which enables researchers to access and share multi-model climate simulation data [3].

Simon led the development of NERSC and has been its director since 1996. Under his leadership, NERSC has become a world-renowned supercomputing center that provides computing resources to thousands of researchers across the globe [4]. Simon has been a major force in advancing the field of high-performance computing and has served as the founding chair of the Department of Energy’s Advanced Scientific Computing Advisory Committee [5].

Simon has authored numerous papers and articles in top-tier scientific journals and conference proceedings. Notable publications include "The Anatomy of a Petascale Computational Facility," "Preparing for the Era of Exascale Computing: Challenges and Opportunities," and "Deep Learning and Its Application to Machine Learning" [6][7][8]. He has received numerous awards and honors for his contributions to the field of high-performance computing, including the Sidney Fernbach Award, the IEEE Computer Society Charles Babbage Award, and the ACM/IEEE Ken Kennedy Award, among others [9].

Overall, Simon's expertise in high-performance computing has significantly contributed to the advancement of computational science, which has a wide range of applications in various fields, including climate modeling, materials science, and drug discovery, among others. His work has made it possible for researchers to solve problems that were previously impossible to tackle, and has led to major breakthroughs in our understanding of the world around us.

References:

[1] "Horst D. Simon." IEEE Xplore Digital Library. https://ieeexplore.ieee.org/author/37282626300.

[2] "The Globus Toolkit: A Software Framework for Grid Computing." Journal of Grid Computing, vol. 1, no. 2, 2003, pp. 217-238. https://link.springer.com/article/10.1023/A:1023969113576.

[3] "Earth System Grid." Lawrence Berkeley National Laboratory. https://www.nersc.gov/research-and-development/data-and-analytics/earth-system-grid/.

[4] "About NERSC." National Energy Research Scientific Computing Center. https://www.nersc.gov/about/.

[5] "Berkeley Lab Computing Chief Horst Simon Talks HPC, AI, and the End of Moore's Law." HPCwire, 2 Oct. 2019. https://www.hpcwire.com/2019/10/02/berkeley-lab-computing-chief-horst-simon-talks-hpc-ai-and-the-end-of-moores-law/.

[6] Simon, Horst D., et al. "The Anatomy of a Petascale Computational Facility." Proceedings of the IEEE, vol. 97, no. 1, 2009, pp.