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Nonsymmetric Algebraic Multigrid Based on Local Approximate Ideal Restriction (lAIR)
Ben S. Southworth, Thomas A. Manteuffel, John Ruge
Algebraic multigrid (AMG) solvers and preconditioners are some of the fastest numerical methods to solve linear systems, particularly in a parallel environment, scaling to hundreds…
math.NA2017
Nonsymmetric Reduction-based Algebraic Multigrid
Thomas A. Manteuffel, Steffen Munzenmaier, John Ruge +1
Algebraic multigrid (AMG) is often an effective solver for symmetric positive definite (SPD) linear systems resulting from the discretization of general elliptic PDEs, or the spati…