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  1. Memory-Efficient Particle Annihilation Algorithm for Wigner Monte Carlo Simulations

    10 Feb 2016 | Online Presentations | Contributor(s): Paul Ellinghaus

    IWCE 2015 presentation. The Wigner Monte Carlo solver, using the signed-particle method, is based on the generation and annihilation of numerical particles. The memory demands of the annihilation algorithm can become exorbitant, if a high spatial resolution is used, because the entire...

  2. Ultra-Thin Silicon Membranes and Nanowires as Nanophononic and Thermoelectric Devices

    10 Feb 2016 | Online Presentations | Contributor(s): Davide Donadio

    IWCE 2015 presentation. In this work we unravel the effect of dimensionality reduction and the prominent role of surface structure and surface resonances in tuning the phonon dispersion relations and the thermal conductivity of silicon nanostructures, including ultrathin membranes [1], [2] and...

  3. Progress on Quantum Transport Simulation Using Empirical Pseudopotentials

    10 Feb 2016 | Online Presentations | Contributor(s): Jingtian Fang, William Gerard Hubert Vandenberghe, Massimo V Fischetti

    IWCE 2015 presentation. After performing one-dimensional simulation of electron transport in narrow quantum wires without gate control in (Fang et al., 2014) and (Fu and Fischetti, 2013) using the open boundary-conditions full-band plane-wave transport formalism derived in (Fu, 2013), we now...

  4. Wigner Function Approach to Quantum Transport in QCLs

    10 Feb 2016 | Online Presentations | Contributor(s): Olafur Jonasson, Irena Knezevic

    IWCE 2015 presentation.

  5. IWCE 2015: Openning Remarks

    10 Feb 2016 | Online Presentations | Contributor(s): Gerhard Klimeck

    IWCE 2015 presentation. Welcome and opening remarks for the 18th International Workshop on Computational Electronics.

  6. Indiana: A State that Works - An Overview of Public-Private Partnerships related to Nanoelectronics, Materials, Energy Storage, and Manufacturing

    10 Feb 2016 | Online Presentations | Contributor(s): Ian Steff

  7. dualfoil.py Tutorial: User-Friendly Electrochemical Simulations for Porous Electrodes

    10 Feb 2016 | Online Presentations | Contributor(s): R. Edwin García

    Tutorial lecture for the tool dualfoil.py.

  8. dualfoil.py Demonstration Video: User-Friendly Electrochemical Simulations for Porous Electrodes

    10 Feb 2016 | Online Presentations | Contributor(s): R. Edwin García

    Companion demonstration video for the tool dualfoil.py.

  9. Gerhard Klimeck - Why I love my work

    10 Feb 2016 | Online Presentations | Contributor(s): Gerhard Klimeck

    Scientist and engineer, Gerhard Klimeck, discusses the joy of his work. 

  10. Flexible Transition Metal Dichalcogenide Field-Effect Transistor (TMDFET) HSPICE Model

    08 Feb 2016 | Downloads | Contributor(s): Morteza Gholipour, Ying-Yu Chen, Deming Chen

    SPICE model of flexible transition metal dichalcogenide field-effect transistors (TMDFETs) for different types of materials (MoS2, MoSe2, MoTe2, WS2, WSe2), considering effects when scaling the transistor size down to the 16-nm technology node. This model can be used for circuit-level simulations.

  11. [Illinois] Data-Centric Models for Multilevel Algorithms

    07 Feb 2016 | Online Presentations | Contributor(s): Samuel Guiterrez

    Today, computational scientists must contend with a diverse set of supercomputer architectures that are capable of exposing unprecedented levels of parallelism and complexity. Effectively placing, moving, and operating on data residing in complex distributed memory hierarchies is quickly...

  12. [Illinois] New FOSLS Formulation of Nonlinear Stokes Flow for Glaciers

    07 Feb 2016 | Online Presentations | Contributor(s): Jeffrey Allen

    This talk describes two First-order System Least-squares (FOSLS) formulations of the nonlinear Stokes flow used to model glaciers and ice sheets. The first is a Stress formulation and the second a Stress-Vorticity formulation. Both use fluidity, which is the reciprocal of viscosity and avoid the...

  13. [Illinois] Non-Blocking Conjugate Gradient Methods for Extreme Scale Computing

    07 Feb 2016 | Online Presentations | Contributor(s): Paul Eller

    Many scientific and engineering applications use Krylov subspace methods to solve large systems of linear equations. For extreme scale parallel computing systems, the dot products in these methods (implemented using allreduce operations in MPI) can limit performance because they are a...

  14. [Illinois] Reducing Communication Costs for Sparse Matrix Multiplication within Algebraic Multigrid

    07 Feb 2016 | Online Presentations | Contributor(s): Thomas Benson

    Recent years have seen renewed interest in the numerical solution of the Stokes Equations. Of particular interest is the use of inf-sup stable pairs of finite elements for which weak enforcement of the incompressibility condition implies strong enforcement as well, such as with BDMelements....

  15. [Illinois] Range Decomposition: A Low Communication Algorithm for Solving PDEs on Massively Parallel Machines

    07 Feb 2016 | Online Presentations | Contributor(s): Tom Manteuffel

    The Range Decomposition (RD) algorithm uses nested iteration and adaptive mesh refinement locally before performing a global communication step. Only several such steps are observed to be necessary before reaching a solution within a small multiple of discretization error. The target application...

  16. [Illinois] Multigrid Methods Conference

    04 Feb 2016 | Workshops

    HIGHLIGHTED TOPICSUncertainty QuantificationOptimization and Inverse ProblemsData Mining, Large Graphs, and Markov ChainsNonsymmetric and Indefinite ProblemsKrylov AcceleratorsHybrid Direct-Iterative Linear SolversParallel Multigrid on Multicore Systems and Heterogeneous ArchitecturesTime...

  17. [Illinois] Nanotechnology meets Biology in the Cancer Cell: Applications in Medicine, Drug Delivery, and Determining Drug Efficacy

    04 Feb 2016 | Online Presentations | Contributor(s): Mostafa El-Sayed

  18. [Illinois] A Massively Parallel Semicoarsening Multigrid for 3D Reservoir Simulation on Multi-core and Multi-GPU Architectures

    04 Feb 2016 | Online Presentations | Contributor(s): Abdulrahman Manea

    In this work, we have designed and implemented a massively parallel version of the Semicoarsening Black Box Multigrid Solver [1], which is capable of handling highly heterogeneous and anisotropic 3D reservoirs, on a parallel architecture with multiple GPU’s. For comparison purposes, the...

  19. [Illinois] On the Design of a Finite Element Multigrid Solver for Mimetic Finite Difference Schemes

    04 Feb 2016 | Online Presentations | Contributor(s): Carmen Rodrigo

    The focus of this work is to study the relation between mimetic finite difference schemes on triangular grids and some finite element methods for two model problems based on curl-rot and grad-div operators. With this purpose, modified Nédélec and Raviart-Thomas finite element...

  20. [Illinois] Least-Squares Finite Element Method and Nested Iteration for Electromagnetic Two-Fluid Plasma Models

    04 Feb 2016 | Online Presentations | Contributor(s): Christopher Leibs

    Efforts are currently being directed towards a fully implicit, electromagnetic, JFNK-based solver, motivating the necessity of developing a fluid-based, electromagnetic, preconditioning strategy [1]. The two-fluid plasma (TFP) model is an ideal approximation to the kinetic Jacobian. The TFP...

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