Steve Plimpton 


I'm a staff member at Sandia National Laboratories, a US
Department of Energy lab. I'm currently in the Multiscale
Science department. Previously I've been in the Scalable Algorithms,
Computational Biology, and Parallel Computational Sciences
departments.
My research involves implementing and using scientific simulations
designed for parallel supercomputers, which often requires creation of
efficient parallel algorithms. Many of the models are particle based,
some use structured grids or finite elements. Most of the codes I
develop are for materials modeling, some for biology and informatics
problems.
Current interests
Past projects
Publications
University course in parallel computing
Software for download:
 LAMMPS = classical molecular dynamics
 SPPARKS = kinetic and Metropolis Monte Carlo
 SPARTA = Direct Simulation Monte Carlo (DSMC)
 ChemCell = spatial reaction/diffusion in biological cells
 MRMPI = MapReduce library on top of MPI
 PHISH = stream processing library on top of MPI
 FFTs = parallel 2d/3d FFT library
 Pizza.py = Pythonbased pre and postprocessing tools for LAMMPS, SPPARKS, SPARTA, ChemCell
How to reach me
Humorous quotations
Related Sandia links
Current Interests
Molecular Dynamics (MD):
Kinetic Monte Carlo  KMC and Metropolis MC simulator SPPARKS
Direct Simulation Monte Carlo  lowdensity reacting flows via particles, SPARTA and Icarus
High Performance Computing (HPC)  neuroinspired computing, performance comparisons of parallel architectures
Biological Cell Modeling  particlebased reaction/diffusion simulator ChemCell
Informatics  dataintensive computing via a MapReduceMPI library, and a streamprocessing PHISH library
Pizza.py Toolkit  Pythonbased toolkit for simulation setup, analysis, plotting, viz
Parallel Algorithms:
Past Projects
Gene Finding  parallelization of the Genehunter genetic linkage analysis program
Radiation Transport  Boltzmann equation for thermal and Xray radiation
ChISELS  surface evolution model of semiconductor processing for micromachine devices (MEMS)
QuickSilver  particleincell (PIC) relativistic electromagnetics
PRONTO  finite element transient dynamics (crash & boom) with contact detection
NIMROD  plasma simulation of tokamaks
Electronic Structure  quantum mechanics of solids
Image Processing  synthetic aperture radar (SAR) analysis
Grain Growth  Potts model on 2d and 3d lattices
Electron Microscopy  Monte Carlo trajectory simulation
Parallel Computing  general overviews
How to Reach Me
sjplimp at sandia.gov
Multiscale Science Dept, MS 1316
Sandia National Laboratories
Albuquerque, NM 871851316
Related Sandia Links
Center for Computation, Computers, and Math
Center projects
Center staff members
Sandia National Laboratories
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