Module fmm_interface 

FMM-solver interface

This module provides a unified interface for solving BEM systems using either direct methods (TBEM) or iterative methods with FMM acceleration.

Structs

AdaptiveMeshConfig

Adaptive mesh configuration

CsrOperator

CSR sparse matrix linear operator

DenseOperator

Dense matrix linear operator

DiagonalPreconditioner

Diagonal preconditioner

HierarchicalFmmPreconditioner

Hierarchical FMM preconditioner

MlfmmOperator

MLFMM linear operator

SlfmmOperator

SLFMM linear operator

SparseNearfieldIlu

Sparse ILU preconditioner for FMM near-field

Functions

estimate_element_count

Estimate element count for a rectangular room

gmres_solve_fmm_batched

Solves a linear system using GMRES with a batched FMM operator (unpreconditioned).

gmres_solve_fmm_batched_with_ilu

Solves a linear system using GMRES with a batched FMM operator and an ILU preconditioner.

gmres_solve_fmm_hierarchical

Solves a linear system using GMRES with a hierarchical FMM preconditioner.

gmres_solve_tbem_with_ilu

Solves a TBEM system (dense matrix) using GMRES with an ILU preconditioner.

gmres_solve_with_hierarchical_precond

Solves a linear system using GMRES with a hierarchical FMM preconditioner.

gmres_solve_with_ilu

Solves a linear system using GMRES with an ILU preconditioner derived from a dense matrix.

gmres_solve_with_ilu_operator

Solves a linear system using GMRES with an ILU preconditioner derived from a nearfield matrix for a given operator.

mesh_resolution_for_frequency_range

Calculate mesh resolution for a frequency range

recommended_mesh_resolution

Calculate recommended mesh resolution for a given frequency

solve_bicgstab

Solves a linear system using the Biconjugate Gradient Stabilized (BiCGSTAB) method.

solve_cgs

Solves a linear system using the Conjugate Gradient Squared (CGS) method.

solve_gmres

Solves a linear system using the Generalized Minimum Residual (GMRES) method.

solve_tbem_with_ilu

Solve a TBEM system (dense matrix) using CGS with an ILU preconditioner.

solve_with_ilu

Solves a linear system with an ILU preconditioner.

solve_with_ilu_operator

Solves a linear system with a given operator and an ILU preconditioner (placeholder, currently not used).