Tags: multigrid

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  1. 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...

    https://nanohub.org/resources/23538

  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...

    https://nanohub.org/resources/23474

  3. 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...

    https://nanohub.org/resources/23491

  4. 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...

    https://nanohub.org/resources/23495

  5. 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...

    https://nanohub.org/resources/23476

  6. Understanding the Propagation of Silent Data Corruption in Algebraic Multigrid

    04 Feb 2016 | Online Presentations | Contributor(s): Jon Calhoun

    Sparse linear solvers from a fundamental kernel in high performance computing (HPC). Exascale systems are expected to be more complex than systems of today being composed of thousands of...

    https://nanohub.org/resources/23483

  7. Optimal Order Multigrid Preconditioners for Linear Systems Arising in the Semismooth Newton Method Solution Process of a Class of Control-Constrained Problems

    18 Aug 2015 | Online Presentations | Contributor(s): Andrei Draganescu

    In this work we present a new multigrid preconditioner for the linear systems arising in the semismooth Newton method solution process of certain control-constrained, quadratic distributed optimal...

    https://nanohub.org/resources/22604

  8. Quantifying Uncertainties from the Grid in CFD Solutions

    03 Jan 2012 | Online Presentations | Contributor(s): Tom I-P. Shih

    This talk begins with a study on grid-quality measures that assume grid-induced errors in a CFD solution at a cell is a function of the cell size and shape, the grid distribution around that cell,...

    https://nanohub.org/resources/12548

  9. Multigrid Tutorial

    08 Jun 2010 | Teaching Materials | Contributor(s): Dragica Vasileska

    This set of slides describe the idea behind the multigrid method and its implementation.

    https://nanohub.org/resources/9129

  10. Illinois Tools: Multigrid Tutorial

    17 Mar 2009 | Tools | Contributor(s): Nahil Sobh

    Solves the 2D Poisson problem using the Multigrid Method

    https://nanohub.org/resources/mgbasic