Search Results - "Kolev, Tzanio"

An adaptive scalable fully implicit algorithm based on stabilized finite element for reduced visco-resistive MHD by Tang, Qi, Chacón, Luis, Kolev, Tzanio V., Shadid, John N., Tang, Xian-Zhu

“…The magnetohydrodynamics (MHD) equations are continuum models used in the study of a wide range of plasma physics systems, including the evolution of complex…”
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A matrix-free hyperviscosity formulation for high-order ALE hydrodynamics by Bello-Maldonado, Pedro D., Kolev, Tzanio V., Rieben, Robert N., Tomov, Vladimir Z.

“…•Hyperviscosity for ALE hydrodynamics with arbitrary order on unstructured meshes.•Robust shock capturing on moving high-order meshes with high-order…”
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End-to-end GPU acceleration of low-order-refined preconditioning for high-order finite element discretizations by Pazner, Will, Kolev, Tzanio, Camier, Jean-Sylvain

“…In this article, we present algorithms and implementations for the end-to-end GPU acceleration of matrix-free low-order-refined preconditioning of high-order…”
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Scalability of high-performance PDE solvers by Fischer, Paul, Min, Misun, Rathnayake, Thilina, Dutta, Som, Kolev, Tzanio, Dobrev, Veselin, Camier, Jean-Sylvain, Kronbichler, Martin, Warburton, Tim, Świrydowicz, Kasia, Brown, Jed

“…Performance tests and analyses are critical to effective high-performance computing software development and are central components in the design and…”
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MAGMA: Enabling exascale performance with accelerated BLAS and LAPACK for diverse GPU architectures by Abdelfattah, Ahmad, Beams, Natalie, Carson, Robert, Ghysels, Pieter, Kolev, Tzanio, Stitt, Thomas, Vargas, Arturo, Tomov, Stanimire, Dongarra, Jack

“…MAGMA (Matrix Algebra for GPU and Multicore Architectures) is a pivotal open-source library in the landscape of GPU-enabled dense and sparse linear algebra…”
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Efficient exascale discretizations: High-order finite element methods by Kolev, Tzanio, Fischer, Paul, Min, Misun, Dongarra, Jack, Brown, Jed, Dobrev, Veselin, Warburton, Tim, Tomov, Stanimire, Shephard, Mark S, Abdelfattah, Ahmad, Barra, Valeria, Beams, Natalie, Camier, Jean-Sylvain, Chalmers, Noel, Dudouit, Yohann, Karakus, Ali, Karlin, Ian, Kerkemeier, Stefan, Lan, Yu-Hsiang, Medina, David, Merzari, Elia, Obabko, Aleksandr, Pazner, Will, Rathnayake, Thilina, Smith, Cameron W, Spies, Lukas, Swirydowicz, Kasia, Thompson, Jeremy, Tomboulides, Ananias, Tomov, Vladimir

“…Efficient exploitation of exascale architectures requires rethinking of the numerical algorithms used in many large-scale applications. These architectures…”
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High order curvilinear finite elements for elastic–plastic Lagrangian dynamics by Dobrev, Veselin A., Kolev, Tzanio V., Rieben, Robert N.

“…This paper presents a high-order finite element method for calculating elastic–plastic flow on moving curvilinear meshes and is an extension of our general…”
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Multilevel Preconditioners for Reaction-Diffusion Problems with Discontinuous Coefficients by Kolev, Tzanio V., Xu, Jinchao, Zhu, Yunrong

“…In this paper, we extend some of the multilevel convergence results obtained by Xu and Zhu in [Xu and Zhu, M3AS 2008 ], to the case of second order linear…”
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Matrix-free approaches for GPU acceleration of a high-order finite element hydrodynamics application using MFEM, Umpire, and RAJA by Vargas, Arturo, Stitt, Thomas M, Weiss, Kenneth, Tomov, Vladimir Z, Camier, Jean-Sylvain, Kolev, Tzanio, Rieben, Robert N

“…With the introduction of advanced heterogeneous computing architectures based on GPU accelerators, large-scale production codes have had to rethink their…”
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High-performance finite elements with MFEM by Andrej, Julian, Atallah, Nabil, Bäcker, Jan-Phillip, Camier, Jean-Sylvain, Copeland, Dylan, Dobrev, Veselin, Dudouit, Yohann, Duswald, Tobias, Keith, Brendan, Kim, Dohyun, Kolev, Tzanio, Lazarov, Boyan, Mittal, Ketan, Pazner, Will, Petrides, Socratis, Shiraiwa, Syun’ichi, Stowell, Mark, Tomov, Vladimir

“…The MFEM (Modular Finite Element Methods) library is a high-performance C++ library for finite element discretizations. MFEM supports numerous types of finite…”
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High-order curvilinear finite elements for axisymmetric Lagrangian hydrodynamics by Dobrev, Veselin A., Ellis, Truman E., Kolev, Tzanio V., Rieben, Robert N.

“…In this paper we present an extension of our general high-order curvilinear finite element approach for solving the Euler equations in a Lagrangian frame [1]…”
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The approximation of the Maxwell eigenvalue problem using a least-squares method by BRAMBLE, James H, KOLEV, Tzanio V, PASCIAK, Joseph E

“…In this paper we consider an approximation to the Maxwell's eigenvalue problem based on a very weak formulation of two div-curl systems with complementary…”
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AMG by element agglomeration and constrained energy minimization interpolation by Kolev, Tzanio V., Vassilevski, Panayot S.

“…This paper studies AMG (algebraic multigrid) methods that utilize energy minimization construction of the interpolation matrices locally, in the setting of…”
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H(curl) auxiliary mesh preconditioning by Kolev, Tzanio V., Pasciak, Joseph E., Vassilevski, Panayot S.

“…This paper analyses a two‐level preconditioning scheme for H(curl) bilinear forms. The scheme utilizes an auxiliary problem on a related mesh that is more…”
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MFEM: A modular finite element methods library by Anderson, Robert, Andrej, Julian, Barker, Andrew, Bramwell, Jamie, Camier, Jean-Sylvain, Cerveny, Jakub, Dobrev, Veselin, Dudouit, Yohann, Fisher, Aaron, Kolev, Tzanio, Pazner, Will, Stowell, Mark, Tomov, Vladimir, Akkerman, Ido, Dahm, Johann, Medina, David, Zampini, Stefano

“…MFEM is an open-source, lightweight, flexible and scalable C++ library for modular finite element methods that features arbitrary high-order finite element…”
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Matrix-free subcell residual distribution for Bernstein finite element discretizations of linear advection equations by Hajduk, Hennes, Kuzmin, Dmitri, Kolev, Tzanio, Abgrall, Remi

“…In this work, we introduce a new residual distribution (RD) framework for the design of bound-preserving high-resolution finite element schemes. The continuous…”
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End-to-end GPU acceleration of low-order-refined preconditioning for high-order finite element discretizations by Pazner, Will, Kolev, Tzanio, Camier, Jean-Sylvain

“…In this article, we present algorithms and implementations for the end-to-end GPU acceleration of matrix-free low-order-refined preconditioning of high-order…”
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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…”
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hr-Adaptivity for nonconforming high-order meshes with the target matrix optimization paradigm by Dobrev, Veselin, Knupp, Patrick, Kolev, Tzanio, Mittal, Ketan, Tomov, Vladimir

“…We present an hr -adaptivity framework for optimization of high-order meshes. This work extends the r -adaptivity method by Dobrev et al. (Comput Fluids,…”
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