Výsledky vyhľadávania - "Multigrid algorithms"

Efficient Multigrid Algorithms for Three-Dimensional Electromagnetic Forward Modeling Autor Wang, Yongfei, Liu, Jianxin, Guo, Rongwen

“…Multigrid (MG) methods solve large linear equations on fine grids by projecting them onto progressively coarser grids, on which the problem can be solved more…”
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Multigrid Algorithms for Tensor Network States Autor Dolfi, Michele, Bauer, Bela, Troyer, Matthias, Ristivojevic, Zoran

“… Here we present a multigrid algorithm that solves these convergence problems by optimizing the wave function at different spatial resolutions…”
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Multigrid algorithms for high-order discontinuous Galerkin discretizations of the compressible Navier–Stokes equations Autor Shahbazi, Khosro, Mavriplis, Dimitri J., Burgess, Nicholas K.

“…Multigrid algorithms are developed for systems arising from high-order discontinuous Galerkin discretizations of the compressible Navier…”
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V-cycle Multigrid Algorithms for Discontinuous Galerkin Methods on Non-nested Polytopic Meshes Autor Antonietti, P. F., Pennesi, G.

“…In this paper we analyze the convergence properties of V -cycle multigrid algorithms for the numerical solution of the linear system of equations stemming from discontinuous Galerkin discretization…”
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Multigrid algorithms for hp-version interior penalty discontinuous Galerkin methods on polygonal and polyhedral meshes Autor Antonietti, P. F., Houston, P., Hu, X., Sarti, M., Verani, M.

“…, which depends on p , is chosen sufficiently large. An analogous result is obtained for the W-cycle multigrid algorithm, which is proved to be uniformly convergent with respect to the mesh size, the polynomial approximation degree, and the number…”
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Correction to: Efficient Multigrid Algorithms for Three-Dimensional Electromagnetic Forward Modeling Autor Wang, Yongfei, Liu, Jianxin, Guo, Rongwen

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A novel coarse grid boundary treatment for multigrid algorithms in computational fluid dynamics simulations Autor Du, Yongle, Cai, Jinsheng

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Comparison of multigrid algorithms for high-order continuous finite element discretizations Autor Sundar, Hari, Stadler, Georg, Biros, George

“…Summary We present a comparison of different multigrid approaches for the solution of systems arising from high‐order continuous finite element discretizations…”
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Geometric multigrid algorithms for elliptic interface problems using structured grids Autor Jo, Gwanghyun, Kwak, Do Y.

“…In this work, we develop geometric multigrid algorithms for the immersed finite element methods for elliptic problems with interface (Chou et al. Adv. Comput…”
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Uniform Convergence of V-cycle Multigrid Algorithms for Two-Dimensional Fractional Feynman–Kac Equation Autor Chen, Minghua, Deng, Weihua, Serra-Capizzano, Stefano

“…When solving large linear systems stemming from the approximation of elliptic partial differential equations (PDEs), it is known that the V-cycle multigrid…”
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Effective multigrid algorithms for algebraic system arising from static peridynamic systems Autor Jo, Gwanghyun, Ha, Youn Doh

“… In this work, we propose multigrid algorithms for implicit discretizations of static peridynamic systems…”
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Convergence estimates for multigrid algorithms with SSC smoothers and applications to overlapping domain decomposition Autor Aulisa, E., Bornia, G., Calandrini, S., Capodaglio, G.

“…In this paper we study convergence estimates for a multigrid algorithm with smoothers of successive subspace correction (SSC…”
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Fault-tolerant finite-element multigrid algorithms with hierarchically compressed asynchronous checkpointing Autor Göddeke, Dominik, Altenbernd, Mirco, Ribbrock, Dirk

“…•Fault-tolerant and robust multigrid methods.•Hierarchical finite element compression.•Asynchronous checkpointing with local restart. We analyse novel fault…”
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On Two Multigrid Algorithms for Modeling Variational Multiphase Image Segmentation Autor Badshah, N., Ke Chen

“…In this paper, we present two related multigrid algorithms for multiphase image segmentation…”
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Multigrid algorithms for symmetric discontinuous Galerkin methods on graded meshes Autor Brenner, S. C., Cui, J., Gudi, T., Sung, L.-Y.

“… norm, and we establish the uniform convergence of V -cycle, F -cycle and W -cycle multigrid algorithms for the resulting discrete problems…”
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Towards a performance-portable description of geometric multigrid algorithms using a domain-specific language Autor Membarth, Richard, Reiche, Oliver, Schmitt, Christian, Hannig, Frank, Teich, Jürgen, Stürmer, Markus, Köstler, Harald

“…High Performance Computing (HPC) systems are nowadays more and more heterogeneous. Different processor types can be found on a single node including…”
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Multigrid algorithms for $$\varvec{hp}$$ h p -version interior penalty discontinuous Galerkin methods on polygonal and polyhedral meshes Autor Antonietti, P. F., Houston, P., Hu, X., Sarti, M., Verani, M.

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Nonlinear multigrid algorithms for Bayesian optical diffusion tomography Autor Jong Chul Ye, Bouman, C.A., Webb, K.J., Millane, R.P.

“…Optical diffusion tomography is a technique for imaging a highly scattering medium using measurements of transmitted modulated light. Reconstruction of the…”
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Applications of Multigrid Algorithms to Finite Difference Schemes for Elliptic Equations with Variable Coefficients Autor Jia, Rong-Qing

“…This paper is devoted to a study of multigrid algorithms applied to finite difference schemes…”
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Multigrid Algorithms and Software for PDEs and Optimization Autor Green, Kiefer Hart

“…Partial differential equations (PDEs) require specialized tools that need to be built to accommodate variables specific to each PDE. This results in a…”
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