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Resources (21-40 of 483)

  1. A Fast Multigrid Approach for Solving the Helmholtz Equation with a Point Source

    04 Feb 2016 | Online Presentations | Contributor(s): Eran Treister

    Solving the discretized Helmholtz equations with high wave numbers in large dimensions is a challenging task. However, in many scenarios, the solution of these equations is required for a point...

    http://nanohub.org/resources/23504

  2. 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...

    http://nanohub.org/resources/23474

  3. A Microfluidics Approach to Probing Neuronal Filopodia

    12 Apr 2016 | Online Presentations

    http://nanohub.org/resources/14003

  4. A Multigrid Method for the Self-Adjoint Angular Flux Form of the Radiation-Transport Equation Based on Cellwise Block Jacobi Iteration

    04 Feb 2016 | Online Presentations | Contributor(s): Jeffrey Densmore

    Cellwise block Jacobi iteration is a technique for radiation-transport calculations in which the angular flux for all directions is solved for simultaneously within a spatial cell with the angular...

    http://nanohub.org/resources/23481

  5. A Performance Comparison of Algebraic Multigrid Preconditioners on GPUs and MIC

    04 Feb 2016 | Online Presentations | Contributor(s): Karl Rupp

    Algebraic multigrid (AMG) preconditioners for accelerators such as graphics processing units (GPUs) and Intel's many-integrated core (MIC) architecture typically require a careful,...

    http://nanohub.org/resources/23485

  6. A Scalable Algorithm for Inverse Medium Problems with Multiple Sources

    04 Feb 2016 | Online Presentations | Contributor(s): Keith Kelly

    We consider the problem of acoustic scattering as described by the free-space, time-harmonic scalar wave equation given by   (0.1)   along with radiation boundary conditions. Here, is a...

    http://nanohub.org/resources/23498

  7. Application of Multigrid Techniques to Magnetic and Electromagnetic Systems

    04 Feb 2016 | Online Presentations | Contributor(s): Benjamin Cowan

    We discuss the use of multigrid techniques for several novel systems related to electromagnetics. One of these is the magnetostatic problem, in which systems can involve highly anisotropic and...

    http://nanohub.org/resources/23489

  8. BioNanotechnology and Nanomedicine Lecture 25: Force Traction Microscopy

    16 Nov 2011 | Online Presentations | Contributor(s): Javid Mohammed Ali

    BioNanotechnology and Nanomedicine: Applications in Cancer and Mechanobiology provides an introduction to basic concepts of nanotechnology in mechanobiology and in cancer. This is a highly...

    http://nanohub.org/resources/12519

  9. Compatible Relaxation Based Geometric-Algebraic Multigrid

    04 Feb 2016 | Online Presentations | Contributor(s): Fei Cao

    We develop compatible relaxation algorithms for smoothed aggregation-based multigrid coarsening. In the proposed method, we use the geometry of the given discrete problem on the finest level to...

    http://nanohub.org/resources/23506

  10. 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,...

    http://nanohub.org/resources/23532

  11. Discretization of Elliptic Differential Equations Using Sparse Grids and Prewavelets

    04 Feb 2016 | Online Presentations | Contributor(s): Christoph Pflaum

    Sparse grids can be used to discretize second order elliptic differential equations on a d-dimensional cube. Using Galerkin discretization, we obtain a linear equation system...

    http://nanohub.org/resources/23520

  12. Geometric Multigrid for MHD Simulations with Nedelec Finite Elements on Tetrahedral Grids

    04 Feb 2016 | Online Presentations | Contributor(s): Chris Hansen

    The Magneto-HydroDynamic (MHD) model is used extensively to simulate macroscopic plasma dynamics in Magnetic Confinement Fusion (MCF) devices. In these simulations, the span of time scales from...

    http://nanohub.org/resources/23491

  13. High Dimensional Uncertainty Quantification via Multilevel Monte Carlo

    04 Feb 2016 | Online Presentations | Contributor(s): Hillary Fairbanks

    Multilevel Monte Carlo (MLMC) has been shown to be a cost effective way to compute moments of desired quantities of interest in stochastic partial differential equations when the uncertainty in...

    http://nanohub.org/resources/23522

  14. HPGMG: Benchmarking Computers Using Multigrid

    04 Feb 2016 | Online Presentations | Contributor(s): Jed Brown

    HPGMG (https://hpgmg.org) is a geometric multigrid benchmark designed to measure the performance and versatility of computers. For a benchmark to be representative of applications, good...

    http://nanohub.org/resources/23495

  15. Hub Snub: Removing Vertices with High Degree from Coarse-grid Correction

    04 Feb 2016 | Online Presentations | Contributor(s): Geoffry Sanders

    Network scientists often employ numerical solutions to linear systems as subroutines of data mining algorithms. Due to the ill-conditioned nature of the systems, obtaining solutions with standard...

    http://nanohub.org/resources/23508

  16. Illinois 2011 NanoBiophotonics Summer School Lecture 1: Welcome

    04 Dec 2011 | Online Presentations | Contributor(s): Rashid Bashir, Nahil Sobh

    1)     Prof. Art Kramer, Director - Beckman Institute 2)     Prof. Ilesanmi Adesida, Dean of...

    http://nanohub.org/resources/12513

  17. Illinois 2011 NanoBiophotonics Summer School Lecture 2: Photoaucistic Tomography, Ultrasonically Breaking Through the Optical Diffusion Limit

    04 Dec 2011 | Online Presentations | Contributor(s): Lihong Wang

    Lihong Wang earned his PhD degree at Rice University, Houston, Texas under the tutelage of Robert Curl, Richard Smalley, and Frank Tittel and currently holds the Gene K. Beare Distinguished...

    http://nanohub.org/resources/12510

  18. Illinois 2011 NanoBiophotonics Summer School Lecture 3: Introduction to Cellular Bioengineering

    04 Dec 2011 | Online Presentations | Contributor(s): Yingxiao Wang

    Network for Computational Nanotechnology at Illinois (NCN@Illinois)

    http://nanohub.org/resources/12511

  19. Illinois 2011 NanoBiophotonics Summer School Lecture 4: Pathology of Blood and Tissue Biopsies

    04 Dec 2011 | Online Presentations | Contributor(s): Krishna Tangella

    Network for Computational Nanotechnology at Illinois (NCN@Illinois)

    http://nanohub.org/resources/12514

  20. Illinois 2011 NanoBiophotonics Summer School Lecture 5: Introduction to NanoPhotonics

    04 Dec 2011 | Online Presentations | Contributor(s): Kent D Choquette

    Network for Computational Nanotechnology at Illinois (NCN@Illinois)

    http://nanohub.org/resources/12515