Multilevel

solve(A::AbstractMatrix, b::Vector, fe_space::FESpace, pgrid_config::PMultigridConfiguration = pmultigrid_config(), pcoarse_solvertype::Type{<:CoarseSolver} = SmoothedAggregationCoarseSolver, args...; kwargs...)

This function solves the linear system Ax = b using polynomial multigrid methods with a coarse solver of type pcoarse_solvertype.

Fields

• A: The system matrix.
• b: The right-hand side vector.
• fe_space: See FESpace for details on the finite element space.
• pgrid_config: Configuration for the polynomial multigrid method, see PMultigridConfiguration for details.
• pcoarse_solvertype: The type of coarse solver to use (e.g., SmoothedAggregationCoarseSolver, Pinv).
• args...: Additional arguments for the coarse solver.
• kwargs...: Additional keyword arguments for the coarse solver.