Mini-applications: Vehicles for Co-Design
Abstract not provided.
Publications
Improving multigrid performance for unstructured mesh drift-diffusion semiconductor device simulations on 147000 cores
International Journal for Numerical Methods in Engineering
Abstract not provided.
Application Driven Analysis of Two Generations of Capability Computing Platforms: Purple and Cielo
Abstract not provided.
Copy of Application-driven Analysis of Two Generations of Capability Computing Platforms: Purple and Cielo
Abstract not provided.
Implicit Newton-Krylov Drift-Diffusion Semiconductor Simulations on Multicore Architectures
Abstract not provided.
Dawn BG/P Critical for Improving Scaling of Algorithms to Prepare for Massively Parallel Future System
Abstract not provided.
Large-Scale Parallel Stabilized Finite Element Simulation of the Drift-Diffusion Model for Semiconductor Devices
Abstract not provided.
Application-driven analysis of two generations of capability computing platforms :
Abstract not provided.
Application-driven Analysis of Two Generations of Capability Computing Platforms: Purple and Cielo
Abstract not provided.
High fidelity semiconductor device simulations for the ASC QASPR program
Abstract not provided.
Towards petascale semiconductor device simulations
Abstract not provided.
Large-scale simulation of semiconductor devices using the drift-diffusion equations
Abstract not provided.
Modeling Prompt Neutron Effects for Stockpile Bipolar Junction Transistors
Abstract not provided.
Large-Scale Parallel Performance of Multiphysics Applications on Multicore Architectures
Abstract not provided.
Block-oriented preconditioners for the solution of the semiconductor drift-diffusion equations
Abstract not provided.
Multigrid & Optimal Solvers
Abstract not provided.
Charon parallel semiconductor device simulator
Abstract not provided.
Parallel Block-Oriented Preconditioners for FEM Modeling of Semiconductor Devices
Abstract not provided.
From CFD to FEM Modeling of Semiconductor Devices
Abstract not provided.
Performance of Various Block Preconditioners for FEM Modeling of Semiconductor Devices
Abstract not provided.
Algebraic multilevel preconditioners for nonsymmetric PDEs on stretched grids
Lecture Notes in Computational Science and Engineering
We report on algebraic multilevel preconditioners for the parallel solution of linear systems arising from a Newton procedure applied to the finite-element (FE) discretization of the incompressible Navier-Stokes equations. We focus on the issue of how to coarsen FE operators produced from high aspect ratio elements.
Large-scale stabilized FE computational analysis of nonlinear steady state transport/reaction systems
Proposed for publication in Computer Methods in Applied Mechanics and Engineering.
The solution of the governing steady transport equations for momentum, heat and mass transfer in fluids undergoing non-equilibrium chemical reactions can be extremely challenging. The difficulties arise from both the complexity of the nonlinear solution behavior as well as the nonlinear, coupled, non-symmetric nature of the system of algebraic equations that results from spatial discretization of the PDEs. In this paper, we briefly review progress on developing a stabilized finite element (FE) capability for numerical solution of these challenging problems. The discussion considers the stabilized FE formulation for the low Mach number Navier-Stokes equations with heat and mass transport with non-equilibrium chemical reactions, and the solution methods necessary for detailed analysis of these complex systems. The solution algorithms include robust nonlinear and linear solution schemes, parameter continuation methods, and linear stability analysis techniques. Our discussion considers computational efficiency, scalability, and some implementation issues of the solution methods. Computational results are presented for a CFD benchmark problem as well as for a number of large-scale, 2D and 3D, engineering transport/reaction applications.
Large-scale stabilized FE computational analysis of nonlinear steady state transport/reaction systems
Proposed for publication in Computation Methods in Applied Mechanics and Engineering.
The solution of the governing steady transport equations for momentum, heat and mass transfer in fluids undergoing non-equilibrium chemical reactions can be extremely challenging. The difficulties arise from both the complexity of the nonlinear solution behavior as well as the nonlinear, coupled, non-symmetric nature of the system of algebraic equations that results from spatial discretization of the PDEs. In this paper, we briefly review progress on developing a stabilized finite element ( FE) capability for numerical solution of these challenging problems. The discussion considers the stabilized FE formulation for the low Mach number Navier-Stokes equations with heat and mass transport with non-equilibrium chemical reactions, and the solution methods necessary for detailed analysis of these complex systems. The solution algorithms include robust nonlinear and linear solution schemes, parameter continuation methods, and linear stability analysis techniques. Our discussion considers computational efficiency, scalability, and some implementation issues of the solution methods. Computational results are presented for a CFD benchmark problem as well as for a number of large-scale, 2D and 3D, engineering transport/reaction applications.
Performance of multilevel preconditioners for incompressible flow with transport
Abstract not provided.
Performance of fully-coupled domain decomposition preconditioners for finite element transport/reaction simulations
Proposed for publication in Journal of Computational Physics.
Abstract not provided.
Results 101–125 of 125