Randall J

Randall J. Splinter

Office Address                                                                                           Home Address
Hewlett-Packard Co.                                                                                  140 Roswell Farms Circle
11575 Great Oaks Way, Suite 100                                                              Roswell, GA 30075
MS 226A                                                                                                      (770) 998-5591
Alpharetta, GA 30022
(404) 648-8003

Skills

Application performance tuning, software development, MPI, numerical analysis, parallel computing, system performance tuning, UNIX system administration, client/server architectures

Languages

C, C++, Fortran, Java

Employment Synopsis

Pre-Sales Technical Consultant, Technical Servers and Workstations Group, Global
Sales Services, Hewlett-Packard Co., June 1997-Present
o Developed and delivered pre-sales presentations to customers.

Provided porting assistance to customers migrating application codes to HP parallel servers.
Benchmarking of HP S,X,V,K and N-class systems for customer benchmarks and internal competitive evaluation.
Completed benchmarks in competitive sales situations.
Co-developed a number of white papers
- Parallel computing on HP parallel servers and hardware architecture
- Application development on HP parallel servers.
A partial list of HP customers that I have provided assistance to: University of Kentucky, Caltech, University of California-Irvine, AT&T, Delta Air Lines, GulfStream Aerospace, and Honeywell Space Systems Division.

          Postdoctoral Scholar, Department of Physics & Astronomy, University of Kentucky.
          June 1995-June 1997
                o Conducted fundamental research in cosmology and large-scale structure formation
                o Performance tuning of n-body and computational fluid dynamics codes for computational
                   cosmology on high-performance parallel computers.
                o Reliability and accuracy of traditional n-body methods for the study of large-scale structure
                   formation in the universe.

          Systems Administrator, Department of Physics & Astronomy, University of Kansas.
          August 1992-June 1995
                o Operating system upgrades and routine maintainen
                o Research support to end users for programming scientific applications.

NASA Graduate Student Fellow, Department of Physics & Astronomy, University of Kansas.
July 1991-July 1994

Undergraduate Research Assistant, Division of Chemistry, Argonne National Laboratory.
August 1984-December 1984

Honors/Awards

Student Research Participation Program, Argonne National Laboratory
NASA Graduate Student Research Fellow
Summer Institute on Supercomputing, Pittsburgh Supercomputing Institute
NASA Summer School on High Performance Computational Physics, NASA Goddard Space Flight Center. Professional Societies IEEE Computer Society Additional Training

HP Logical Volume Manager
HP MC/ServiceGuard
Performance Tuning on HP-UX Systems
UNIX/NT Interoperability
EMC Symmetrix Architecture
CPLEX Callable Library Training

Research Interests

Computational Physics

N-Body Methods
Computational Fluid Dynamics
Multi-Grid Methods for Elliptical Partial Differential Equations
Numerical Solution of Partial Differential Equations on Parallel Computers

Performance Characterization of High-Performance Parallel Computers.
Role of Computer Architecture in the Design of Parallel Algorithms.
Object Oriented Technical Computing

Refereed Publications The Dipole Oscillations of General Relativistic Neutron Stars, L. Lindblom, R.J. Splinter, 1989, Astrophysical Journal, 345, 925.

The Accuracy of the Relativistic Cowling Approximation, L. Lindblom, R.J. Splinter, 1990, Astrophysical Journal, 348, 198.

Damping Times for Neutron Star Oscillations, C. Cutler, L. Lindblom, R.J. Splinter, 1990, Astrophysical Journal, 363, 603.

Can Mock Gravity Save Hot Dark Matter?, R.J. Splinter, A.L. Melott, 1992, Astrophysical Journal, 394, 7.

Decaying Neutrinos in Galaxy Clusters, A.L. Melott, R.J. Splinter, M. Persic, P. Salucci, 1994, Astrophysical Journal, 421, 16.

A Nested-Grid Particle-Mesh Code for High Resolution Simulations of Gravitational Instability in Cosmology, R.J. Splinter, 1996, Monthly Notices of the Royal Astronomical Society, 281, 281.

The Superiority of the Minimal Spanning Tree in Percolation Analyses of Cosmological Datasets, S.P. Bhavsar, R.J. Splinter, 1996, Monthly Notices of the Royal Astronomical Society, 282, 1461.

Demonstrating Discreteness and Collision Errors in Cosmological N-Body Simulations of Dark Matter Gravitational Clustering, A.L. Melott, R.J. Splinter, S.F. Shandarin, Y. Suto, 1997, Astrophysical Journal Letters, 479, 79.

The Ellipticity and Orientation of Clusters of Galaxies in N-Body Experiments, R.J. Splinter, A.L. Melott, A.M. Linn, C. Buck, J. Tinker, 1997, Astrophysical Journal, 479, 632.

Fundamental Limitations on Cosmological Clustering Simulations Due to "N-Bodies", R.J. Splinter, A.L. Melott, S.F. Shandarin, Y. Suto, 1997, Astrophysical Journal, 497, 38.

Unrefereed Publications Comparison of Visual Features in the CfA Survey with N-Body Simulations Using Statistical Methods, R.J. Splinter, S.P. Bhavsar, E. Gauthier, 1996, Bulletin of the American Astronomical Society, 188, 12.04.

The Ellipticity and Orientation of Clusters of Galaxies in N-Body Experiments, R.J. Splinter, A.L. Melott, A.M. Linn, C. Buck, J. Tinker, 1996, Bulletin of the American Astronomical Society, 188, 21.09.

Substructure Survival in Galaxy Clusters from N-body Experiments, R.J. Splinter, A.L. Melott, 1997, Bulletin of the American Astronomical Society, 189, 102.04.

Fundamental Limitations on Cosmological Clustering Simulations Due to "N-Bodies", R.J. Splinter, A.L. Melott, S.F. Shandarin, Y. Suto, 1997, Bulletin of the American Astronomical Society, 190, 86.03.

Invited Talks "Discreteness Effects in Cosmological N-Body Simulations", The Third Lawrence Cosmology Workshop, Lawrence, KS. May 9, 1997

"Modelling the Universe in Parallel? The Past and Future of Computational Cosmology", Center for Computational Sciences, University of Kentucky, Lexington, KY. September 23, 1997.

"Modelling the Universe in Parallel? The Past and Future of Computational Cosmology", Institute for Theoretical and Computational Science, University of Kansas, Lawrence, KS. October 3, 1997.

Book Chapters Applications of N-Body Methods to Studies of Large-Scale Structure Formation in the Universe, R.J. Splinter, S.P. Bhavsar, 1997, in Some New Directions in Science on Computers, eds. G. Bhanot, G. Chen, P.E. Seiden, World Scientific, ISBN 981-02-3196-2 Thesis Massive Neutrino Decay Driven Radiative Instabilities, Sub-structure Survival in Galaxy Clusters, and a Nested-Grid Particle-Mesh Code, R.J. Splinter, 1995, PhD dissertation, University of Kansas.

Education

PhD (Physics, 1995). University of Kansas.
MS (Physics, 1987). Montana State University
BS (Physics & Math, 1985). University of Wisconsin-LaCrosse

Last Updated: 2-Apr-99