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Benjamin K. Bergen

Ben Bergen

Email
Phone (505) 667-1699

Capabilities

  • Computational Physics and Applied Mathematics
  • Numerical modeling
  • Coupled multi-physics simulations
  • Mathematics
  • Algorithms
  • Computational fluid dynamics (CFD)
  • Partial differential equations
  • Computational Co-Design
  • Discrete event simulation
  • Discretization and closure for climate applications
  • Computational fluid dynamics applications in astrophysics
  • Computational fluid dynamics applications on advanced architectures
  • Jacobi-Free Newton Krylov Methods
  • Arbitrary Eulerian Lagrangian (ALE) approach
  • Applied Math
  • Mesh generation
  • VPIC (Vector Particle in Cell) Code
  • Complex system evolutions
  • Adaptive mesh refinement (AMR)
  • Computer and Computational Sciences
  • High performance computing
  • Exascale
  • Roadrunner
  • Graphical processing unit (GPU)
  • Petascale
  • Hybrid architecture
  • Open MPI development
  • Computational Co-Design
  • Data-Intensive computing
  • Multicore
  • Heterogeneous Architectures
  • Accelerated architecture
  • High performance computing
  • High Energy Density Plasmas and Fluids
  • Laser-plasma interactions
  • VPIC (Vector Particle in Cell) Code
  • Stimulated Raman scattering (SRS) of laser
  • Magnetohydrodynamic phenomena
  • Space and astrophysical plasmas
  • Computational fluid dynamics (CFD)
  • Shock-driven Mixing and Turbulence
  • Shock tube capability
  • Space plasma physics
  • Nuclear and Particle Physics, Astrophysics, and Cosmology
  • Nuclear Physics
  • Astrophysics
  • Weapons Science and Engineering
  • Stockpile stewardship
  • Multi-phase equation-of-state (EOS) models
  • Shock physics
  • Arbitrary Eulerian Lagrangian (ALE) approach
  • Particle in cell
  • Multi-physics codes
  • Inertial confinement fusion (ICF)
  • Laser-plasma interaction
  • Fast ignition concepts
  • Space plasmas
  • Shock-driven Mixing and Turbulence
  • VPIC (Vector Particle in Cell) Code
  • Roadrunner

Expertise

I am a computational scientist.  My primary areas of expertise are applied mathematcis, computer architectures and programming models. I use these skills to help domain scientists solve problems in high-energy physics.

Publications

[Bergen, B * Gradl, T * Rude, U * Hulsemann, F], "A massively parallel multigrid method for finite elements", COMPUTING IN SCIENCE & ENGINEERING, Vol.8, iss.6, p.56-62, NOV-DEC 2006.

[Bergen, B. * Wellein, G. * Hu?lsemann, F. * Ru?de, U.], "Hierarchical hybrid grids: Achieving TERAFLOP performance on large scale finite element simulations", International Journal of Parallel, Emergent and Distributed Systems, Vol.22, iss.4, p.311-329, January 2007.

[Bowers, KJ * Albright, BJ * Yin, L * Bergen, B * Kwan, TJT], "Ultrahigh performance three-dimensional electromagnetic relativistic kinetic plasma simulation", PHYSICS OF PLASMAS, Vol.15, iss.5, 055703, MAY 2008.

[Bowers, K.J. * Albright, B.J. * Bergen, B. * Yin, L. * Barker, K.J. * Kerbyson, D.J.], "0.374 Pflop/s trillion-particle kinetic modeling of laser plasma interaction on roadrunner", 2008 SC - International Conference for High Performance Computing, Networking, Storage and Analysis, 2008.

[Yin, L * Albright, BJ * Rose, HA * Bowers, KJ * Bergen, B * Montgomery, DS * Kline, JL * Fernandez, JC], "Onset and saturation of backward stimulated Raman scattering of laser in trapping regime in three spatial dimensions", PHYSICS OF PLASMAS, Vol.16, iss.11, 113101, NOV 2009.

[Bowers, K.J. * Albright, B.J. * Yin, L. * Daughton, W. * Roytershteyn, V. * Bergen, B. * Kwan, T.J.T.], "Advances in petascale kinetic plasma simulation with VPIC and Roadrunner", Journal of Physics: Conference Series, vol.180, no.1, p.012055, 2009.

[Daughton, W * Roytershteyn, V * Karimabadi, H * Yin, L * Albright, BJ * Bergen, B * Bowers, KJ], "Role of electron physics in the development of turbulent magnetic reconnection in collisionless plasmas", NATURE PHYSICS, Vol.7, iss.7, p.539-542, JUL 2011.

[Yin, L * Albright, BJ * Rose, HA * Bowers, KJ * Bergen, B * Kirkwood, RK], "Self-Organized Bursts of Coherent Stimulated Raman Scattering and Hot Electron Transport in Speckled Laser Plasma Media", PHYSICAL REVIEW LETTERS, Vol.108, iss.24, 245004, JUN 12 2012.

[Yin, L * Albright, BJ * Rose, HA * Bowers, KJ * Bergen, B * Kirkwood, RK * Hinkel, DE * Langdon, AB * Michel, P * Montgomery, DS * Kline, JL], "Trapping induced nonlinear behavior of backward stimulated Raman scattering in multi-speckled laser beams", PHYSICS OF PLASMAS, Vol.19, iss.5, 056304, MAY 2012.

[Yin, L. * Albright, B.J. * Rose, H.A. * Montgomery, D.S. * Kline, J.L. * Kirkwood, R.K. * Michel, P. * Bowers, K.J. * Bergen, B.], "Self-organized coherent bursts of stimulated Raman scattering and speckle interaction in multi-speckled laser beams", Physics of Plasmas, Vol.20, iss.1, p.012702, Jan. 2013.

[Warren, Michael S. * Bergen, Ben], "The hashed oct-tree n-body algorithm at a petaflop", Proceedings - 2012 SC Companion: High Performance Computing, Networking Storage and Analysis, SCC 2012, p.1442, 2012.