University of Pittsburgh

Ralph Z Roskies

Professor/Director, PSC
University of Pittsburgh
410 Allen Hall

(412) 268-4960 (PSC)
(412) 624-9055 (Pitt)
(412) 268-5832 (fax)
Research: Particle Physics


Roskies is Professor of Physics at the University of Pittsburgh and a founder and Co-Scientific Director of the

Pittsburgh Supercomputing Center(PSC)

. He is the author of over 60 papers in theoretical elementary particle physics, including aspects of lattice gauge theory and symbolic computation methods applied to fundamental problems in quantum electrodynamics. In 1984, together with Professor Michael Levine of Carnegie Mellon University and James Kasdorf from Westinghouse, he developed the proposal to the National Science Foundation for what became the PSC. As Scientific Director, Roskies oversees operations, plans its future course, and concerns himself with its scientific impact. The PSC has been a national leader in providing the highest capability computing to the US national research community. It has pioneered developments in file systems, heterogeneous computing, parallel algorithms and scientific visualization. Roskies' pivotal role in developing and implementing the NSF allocation process has given him a very broad overview of leading computational science and close ties to its most prominent practitioners. He has served as advisor to and as reviewer of a large number of U.S. and international supercomputing centers.



The Pittsburgh Supercomputing Center (PSC,, co-directed by Physics Professor Ralph Roskies, is a multi-agency national supercomputing center, which is a joint effort of Carnegie Mellon, the University of Pittsburgh, and Westinghouse Electric Company. It is a leader in providing the national research community leading edge computational resources for scientific investigation.


Besides computational speed, PSC resources include advanced visualization capabilities and large-scale data storage facilities. The Center has an NIH-funded concentration on biomedical supercomputing. PSC offers training in supercomputing techniques at introductory and advanced levels. Class access to PSC machines for educational purposes is easily obtained.


Researchers with little or no supercomputing experience can request a starter grant for up to 30,000 processor hours of computing. Proposals for larger, established research projects are selected through a peer-review process, with consideration given to the quality of the research and the need for supercomputing (see



  • "Designing and Supporting High-end Computational Facilities," with Thomas Zacharia, Oak Ridge National Laboratory, CTWatch Quarterly, May 2006.
  • "Metacomputing: Pipe dream or practical reality?" Computers in Physics 8, No. 5, 540-545, September/October (1994).
  • "Loop Representations of the Quark Determinant in Lattice QCD," R. Roskies, A. Duncan, E. Eichten, H. Thacker, Phys. Rev. D60, 54505, (1999).
  • "Analytic Evaluation of Sixth Order Contribution to the Electron's g Factor," R. Roskies, M. J. Levine & E. Remiddi, Quantum Electrodynamics ed. T. Kinoshita, World Scientific, (1990).
  • "Lanczos Calculation of the Spectrum of Hamiltonian Lattice Gauge Theory," R. Roskies, J. W. Choe, A. Duncan, Phys. Rev. D37, 472, (1988).

Department of Physics and Astronomy
University of Pittsburgh
100 Allen Hall
3941 O'Hara St
Pittsburgh PA 15260
O: (412) 624-9000 | F: (412) 624-9163

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