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Advanced Computing Technology Center
| David Klepacki |
David Klepacki directs and manages the Advanced Computing Technology Center (ACTC) and is also associate director of the Deep Computing Institute at the IBM T.J. Watson Research Center in Yorktown Heights, NY.
David obtained a Ph.D. degree in physics from Purdue University and is a senior staff scientist at IBM Research with more than 20 years of experience in high performance computing. David has worked in many areas including high performance processor design, numerically intensive computation, computational physics, parallel computing, application benchmarking, and cluster computing.
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| Guojing Cong |
Guojing Cong received his Ph.D. in engineering from the University of New Mexico in 2004. His Ph.D. thesis focuses on the design and implementation of parallel algorithms for irregular problems on shared-memory machines, and presents results for the first time for several fundamental graph problems that show good parallel speedups. He also conducted research in computational phylogeny reconstruction. At ACTC Guojing works with colleagues to develop and implement the performance tool strategy.
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| Charles Grassl |
Charles Grassl is currently an information technology specialist, working on high performance computing issues that involve performance and programming models. His main focus areas within the ACTC include: giving workshops on programming and conversion, program conversion and optimization, and assisting prospective high performance computing clients with important information about IBM pSeries computers.
Charles received a Ph.D. degree in physics from the University of Wisconsin and worked in the benchmarking and in the strategic marketing groups at Cray Research prior to joining IBM in 1999. In the benchmarking group, he worked on program optimization, using both vectorization and parallelization.
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| Christoph Pospiech |
Christoph Pospiech draws on more than 15 years of experience in high performance computing. He has worked with various codes on computational physics, mainly by analyzing and understanding the underlying algorithms, optimizing and benchmarking. He has also given various workshops in this topic. As needed for his work, he has also developed his own tools or helped other developers to get their tools in shape. In recent years, he has focused on the area of meteorology, supporting and collaborating with various European weather services.
Christoph received a Ph.D. degree in applied mathematics from Heidelberg University in 1988, and joined the IBM Scientific Center Heidelberg right after as a scientific consultant. He has worked in the area of parallel computing ever since.
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| Anthony Praino |
Anthony Praino is a research engineer in the weather modeling group of the Advanced Computing Technology Center (ACTC). His focus is on applications of weather modeling, high performance computing and systems engineering.
Anthony has over two decades of research experience in systems, storage and applications, and has been active in the meteorological community for over 30 years. Anthony has an ME in electrical engineering and an MS in computer engineering and is currently working toward certification in the atmospheric sciences.
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| Simone Sbaraglia |
Simone Sbaraglia earned a Ph.D. in mathematics at the University of Rome, in 2003, with thesis work on "Mathematical Methods and Models for Technology and Society." Simone is currently a research staff member at the ACTC, working on design and development of parallel programing tools. He is the co-architect of SiGMA which he started when working as a co-op student at ACTC.
Prior to joining IBM, he worked at the National Research Council, Institute for Applied Computing, in Italy, where he designed and developed a graphical interface for the simulation of the propagation of brakes and the diffusion of chemical polluting in porous materials, and conducted research in the design and implementation of prototypes for the optimal asset-liability management with constraints for insurance companies, as well as in efficient implementation of algorithms for the approximation of optimality problems arising in financial theory.
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| Lloyd A. Treinish |
Lloyd A. Treinish is a research staff member in the Advanced Computing Technology Center of the Deep Computing Institute. His research interests range from visualization systems, visual design, data models, data fusion, cartography and rule-based tools to severe storm prediction, coupled modeling and study of other atmospheric and space physics phenomena. He was a consultant to the Department of Energy Accelerated Strategic Computing Initiative Scientific Data Management group, and has served with other DOE and NASA advisory groups in the past. He began his work at IBM Research in 1990 as part of the team that developed the IBM POWER Visualization System and Data Explorer. Earlier, he did related work for over a decade at NASA/Goddard Space Flight Center in Greenbelt, MD as a senior computer scientist, working on scientific data management and visualization, and space and atmospheric sciences.
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| Bob Walkup |
Bob Walkup has extensive experience in both benchmarking and porting scientific and technical applications for the IBM pSeries. And, very importantly, he also possesses an innate ability to quickly grasp the fundamental, key elements of any application followed by a penetrating assessment of the impact for code optimization, MPI and OpenMP performance issues, and performance bottlenecks. Bob is an important asset to the ACTC because of his broad knowledge, extensive experience, and intrinsic understanding of high performance computing.
Bob obtained a Ph.D. degree in physics from Massachusetts Institute of Technology and published papers involving both experimental and computational physics. |
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