Search Results - "Barker, Andrew T."

Matrix‐free preconditioning for high‐order H(curl) discretizations by Barker, Andrew T., Kolev, Tzanio

“…The greater arithmetic intensity of high‐order finite element discretizations makes them attractive for implementation on next‐generation hardware, but…”
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Algebraic multigrid preconditioning of the Hessian in optimization constrained by a partial differential equation by Barker, Andrew T., Drăgănescu, Andrei

“…Summary We construct an algebraic multigrid (AMG) based preconditioner for the reduced Hessian of a linear‐quadratic optimization problem constrained by an…”
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Scalable parallel methods for monolithic coupling in fluid–structure interaction with application to blood flow modeling by Barker, Andrew T., Cai, Xiao-Chuan

“…We introduce and study numerically a scalable parallel finite element solver for the simulation of blood flow in compliant arteries. The incompressible…”
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Simultaneous material, shape and topology optimization by Fernandez, Felipe, Barker, Andrew T., Kudo, Jun, Lewicki, James P., Swartz, Kenneth, Tortorelli, Daniel A., Watts, Seth, White, Daniel A., Wong, Jonathan

“…Using three design fields we develop an optimization environment that can simultaneously optimize material, shape and topology. We use the implicit…”
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Preconditioning a Newton-Krylov solver for all-speed melt pool flow physics by Weston, Brian, Nourgaliev, Robert, Delplanque, Jean-Pierre, Barker, Andrew T.

“…In this paper, we introduce a multigrid block-based preconditioner for solving linear systems arising from a Discontinuous Galerkin discretization of the…”
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A minimal communication approach to parallel time integration by Barker, Andrew T.

“…We explore an approach due to Nievergelt of decomposing a time-evolution equation along the time dimension and solving it in parallel with as little…”
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A Mixed Finite Element Method for the Stokes Equations Based on a Weakly Over-Penalized Symmetric Interior Penalty Approach by Barker, Andrew T., Brenner, Susanne C.

“…We present a mixed finite element method for the steady-state Stokes equations where the discrete bilinear form for the velocity is obtained by a weakly…”
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Houses, a chip factory, anything really in place of Portland's Hillsboro Airport by Barker, Andrew T.

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Evolutionary Stability in the Traveler's Dilemma by Barker, Andrew T.

“…The traveler's dilemma is a generalization of the prisoner's dilemma which shows clearly a paradox of game theory. In the traveler's dilemma, the strategy…”
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Domain decomposition in time for PDE-constrained optimization by Barker, Andrew T., Stoll, Martin

“…PDE-constrained optimization problems have a wide range of applications, but they lead to very large and ill-conditioned linear systems, especially if the…”
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Matrix‐free preconditioning for high‐order H (curl) discretizations by Barker, Andrew T., Kolev, Tzanio

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Matrix-free preconditioning for high-order H(curl) discretizations by Barker, Andrew T., Kolev, Tzanio

“…The greater arithmetic intensity of high-order finite element discretizations makes them attractive for implementation on next-generation hardware, but…”
Get full text

Algebraic multigrid preconditioning of the Hessian in optimization constrained by a partial differential equation by Barker, Andrew T., Drăgănescu, Andrei

“…Summary We construct an algebraic multigrid (AMG) based preconditioner for the reduced Hessian of a linear‐quadratic optimization problem constrained by an…”
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A Fast Solver for an H1 Regularized PDE-Constrained Optimization Problem by Barker, Andrew T., Rees, Tyrone, Stoll, Martin

“…In this paper we consider PDE-constrained optimization problems which incorporate an H1 regularization control term. We focus on a time-dependent PDE, and…”
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A Fast Solver for an H 1 Regularized PDE-Constrained Optimization Problem by Barker, Andrew T., Rees, Tyrone, Stoll, Martin

“…Abstract In this paper we consider PDE-constrained optimization problems which incorporate an H 1 regularization control term. We focus on a time-dependent…”
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Recombinant human CD40 ligand inhibits simian immunodeficiency virus replication: A role for interleukin-16 by Lee, Mark E., Bucur, Silvana Z., Gillespie, Theresa W., Adams, Jonathan W., Barker, Andrew T., Thomas, Elaine K., Roback, John D., Hillyer, Christopher D.

“…: CD40 ligand (CD40L), expressed on activated T cells, binds its receptor, CD40, on dendritic cells, B cells, and monocytes/macrophages. Human immunodeficiency…”
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Evolutionary Stability in the Traveler's Dilemma by Barker, Andrew T.

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Algebraic multigrid preconditioning of the Hessian in PDE-constrained optimization by Barker, Andrew T, Draganescu, Andrei

“…We construct an algebraic multigrid (AMG) based preconditioner for the reduced Hessian of a linear-quadratic optimization problem constrained by an elliptic…”
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A minimal communication approach to parallel time integration by Barker, Andrew T

“…Int. J. Comput. Math. 91 (2014) pp. 601-615 We explore an approach due to Nievergelt of decomposing a time-evolution equation along the time dimension and…”
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Multilevel spectral coarsening for graph Laplacian problems with application to reservoir simulation by Barker, Andrew T, Gelever, Stephan V, Lee, Chak S, Osborn, Sarah V, Vassilevski, Panayot S

“…We extend previously developed two-level coarsening procedures for graph Laplacian problems written in a mixed saddle point form to the fully recursive…”
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