Algebraic multigrid methods

J Xu, L Zikatanov - Acta Numerica, 2017 - cambridge.org
This paper provides an overview of AMG methods for solving large-scale systems of
equations, such as those from discretizations of partial differential equations. AMG is often …

Linear solvers for reservoir simulation problems: An overview and recent developments

S Nardean, M Ferronato, A Abushaikha - Archives of Computational …, 2022 - Springer
Linear solvers for reservoir simulation applications are the objective of this review.
Specifically, we focus on techniques for Fully Implicit (FI) solution methods, in which the set …

BootCMatch: a software package for bootstrap AMG based on graph weighted matching

P D'ambra, S Filippone, PS Vassilevski - ACM Transactions on …, 2018 - dl.acm.org
This article has two main objectives: one is to describe some extensions of an adaptive
Algebraic Multigrid (AMG) method of the form previously proposed by the first and third …

A novel algebraic multigrid approach based on adaptive smoothing and prolongation for ill-conditioned systems

VA Paludetto Magri, A Franceschini, C Janna - SIAM Journal on Scientific …, 2019 - SIAM
The numerical simulation of modern engineering problems can easily incorporate millions or
even billions of unknowns. In several applications, sparse linear systems with symmetric …

Optimal interpolation and compatible relaxation in classical algebraic multigrid

J Brannick, F Cao, K Kahl, RD Falgout, X Hu - SIAM Journal on Scientific …, 2018 - SIAM
In this paper, we consider a classical algebraic multigrid (AMG) form of optimal interpolation
that directly minimizes the two-grid convergence rate and compare it with a so-called ideal …

A robust adaptive algebraic multigrid linear solver for structural mechanics

A Franceschini, VAP Magri, G Mazzucco… - Computer Methods in …, 2019 - Elsevier
The numerical simulation of structural mechanics applications via finite elements usually
requires the solution of large-size linear systems, especially when accurate results are …

A scalable preconditioning framework for stabilized contact mechanics with hydraulically active fractures

A Franceschini, L Gazzola, M Ferronato - Journal of Computational Physics, 2022 - Elsevier
A preconditioning framework for the coupled problem of frictional contact mechanics and
fluid flow in the fracture network is presented. We focus on a blended finite element/finite …

Algebraic interface‐based coarsening AMG preconditioner for multi‐scale sparse matrices with applications to radiation hydrodynamics computation

X Xu, Z Mo - Numerical Linear Algebra with Applications, 2017 - Wiley Online Library
Coarsening is a crucial component of algebraic multigrid (AMG) methods for iteratively
solving sparse linear systems arising from scientific and engineering applications. Its …

[图书][B] Computational fluid dynamics and heat transfer

P Majumdar - 2021 - taylorfrancis.com
This book provides a thorough understanding of fluid dynamics and heat and mass transfer.
The Second Edition contains new chapters on mesh generation and computational …

Improving solve time of aggregation‐based adaptive AMG

P D'Ambra, PS Vassilevski - Numerical Linear Algebra with …, 2019 - Wiley Online Library
This paper proposes improving the solve time of a bootstrap algebraic multigrid (AMG)
designed previously by the authors. This is achieved by incorporating the information, a set …