hecmw_precond_SAAMG_param.f90

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!-------------------------------------------------------------------------------
! Copyright (c) 2026 FrontISTR Commons
! This software is released under the MIT License, see License.txt
!-------------------------------------------------------------------------------
module hecmw_precond_saamg_param
  use hecmw_precond_saamg_util
  implicit none
 
  private
  public :: hecmwst_saamg_params
 
  type hecmwst_saamg_params
    integer(kind=kint) :: cheb_deg   = 2
    real(kind=kreal)   :: cheb_alpha = 20.0d0 
    integer(kind=kint) :: min_size   = 3
    integer(kind=kint) :: max_size   = 96
    real(kind=kreal)   :: theta      = 0.0d0  
    integer(kind=kint) :: taper_k    = 100
    integer(kind=kint) :: agg_order  = 1
    logical            :: galerkin_lowmem = .false. 
    integer(kind=kint) :: lanczos_iter = 10
    real(kind=kreal)   :: safety     = 1.1d0  
    integer(kind=kint) :: max_level  = 20
    integer(kind=kint) :: coarse_size = 100
    integer(kind=kint) :: coarsest_solver = 0
    integer(kind=kint) :: ncycle     = 2
    real(kind=kreal)   :: stagn      = 0.7d0  
    logical            :: symmetric  = .true. 
    logical            :: verbose    = .false.
    integer(kind=kint) :: loglevel   = -1
    integer(kind=kint) :: timelog    = 0
    logical            :: verify     = .false.
    logical            :: dump_vtk   = .false.
  end type hecmwst_saamg_params
 
end module hecmw_precond_saamg_param