parameters_helmholtz_solver_factory Derived Type

type, public :: parameters_helmholtz_solver_factory

Parameters for factory routine, with defaults


Components

Type Visibility Attributes Name Initial
character(len=16), public :: dirsolver_type = 'MKL'

Library used for direct solver (MKL, CUSPARSE)
character(len=16), public :: smoother_type = 'GSRB'

Algorithm for smoother within multigrid (JAC, GS, GSRB)
real(kind=FP), public :: rtol = 1.0E-8_FP

Relative tolerance on residuum res := ||Ax - b|| / (||b|| + restol_zero) < rtol
real(kind=FP), public :: restol_zero = FP_EPS

Tolerance for zero of right hand side in residuum computation
integer, public :: gmres_maxiter = 15

Maximum number of GMRES iterations
integer, public :: gmres_nrestart = 15

Number of iterations after which restart of GMRES is done
character(len=1), public :: mgrid_cycletype = 'V'

V or W cycle
integer, public :: mgrid_npresmooth = 5

Number of pre-smoothing steps
integer, public :: mgrid_npostsmooth = 5

Number of post-smoothing steps
integer, public :: dbgout = 0

Debug output level

Type-Bound Procedures

procedure, public :: display => display_parameters_helmholtz_solver_factory