class for the cg linear solver More...

Inheritance diagram for sll_t_linear_solver_cg:

Collaboration diagram for sll_t_linear_solver_cg:

Private Member Functions
procedure	create => create_linear_solver_cg

procedure	initialize => initialize_linear_solver_cg

procedure	set_guess => set_guess_linear_solver_cg

procedure	check_convergence => check_convergence_linear_solver_cg

procedure	read_from_file => read_from_file_linear_solver_cg

procedure	solve_real => solve_real_linear_solver_cg

procedure	set_verbose => set_verbose_linear_solver_cg

procedure	print_info => print_info_linear_solver_cg

procedure	free => free_linear_solver_cg

procedure	compute_residual_error => compute_residual_error_linear_solver_iter_abstract

procedure	set_linear_operator => set_linop_linear_solver_iter_abstract

procedure	set_tolerance => set_tolerance_linear_solver_iter_abstract

generic	solve => solve_real

procedure	initialize_abstract => initialize_linear_solver_abstract

procedure	set_verbose_abstract => set_verbose_linear_solver_abstract

Private Attributes
integer(kind=i32)	n_maxiter = 2000
	maximum number of iterations More...

logical	null_space = .false.
	true if singular linear operator:w More...

real(kind=f64)	atol = 1.0d-9
	absolute tolerance More...

real(kind=f64), dimension(:), allocatable	x_0
	for the initialization More...

class(sll_t_linear_operator_abstract), pointer	ptr_linear_operator => null()
	pointer to the used linear operator More...

class(sll_t_linear_operator_abstract), allocatable	p_linear_operator
	used for nullspace More...

class(sll_t_linear_solver_abstract), pointer	ptr_pc_left => null()
	pointer to a left pc More...

integer(kind=i32)	n_rows = 0
	number of rows More...

integer(kind=i32)	n_cols = 0
	number of columns More...

integer(kind=i32)	n_global_rows = 0
	number of rows different from n_rows for distributed linear operator More...

integer(kind=i32)	n_global_cols = 0
	number of columns different from n_cols for linear operator More...

integer(kind=i32)	n_total_rows = 0
	n_global_rows * n_block_rows More...

integer(kind=i32)	n_total_cols = 0
	n_global_cols * n_block_cols More...

logical	is_allocated = .false.

logical	verbose = .false.
	details output for diagnostic if true More...

Detailed Description

class for the cg linear solver

Definition at line 38 of file sll_m_linear_solver_cg.F90.

Member Function/Subroutine Documentation

◆ check_convergence()

procedure check_convergence

private

Definition at line 43 of file sll_m_linear_solver_cg.F90.

◆ compute_residual_error()

procedure compute_residual_error

privateinherited

Definition at line 50 of file sll_m_linear_solver_iter_abstract.F90.

◆ create()

procedure create

private

Definition at line 40 of file sll_m_linear_solver_cg.F90.

◆ free()

procedure free

private

Definition at line 48 of file sll_m_linear_solver_cg.F90.

◆ initialize()

procedure initialize

private

Definition at line 41 of file sll_m_linear_solver_cg.F90.

◆ initialize_abstract()

procedure initialize_abstract

privateinherited

Definition at line 47 of file sll_m_linear_solver_abstract.F90.

◆ print_info()

procedure print_info

private

Definition at line 47 of file sll_m_linear_solver_cg.F90.

◆ read_from_file()

procedure read_from_file

private

Definition at line 44 of file sll_m_linear_solver_cg.F90.

◆ set_guess()

procedure set_guess

private

Definition at line 42 of file sll_m_linear_solver_cg.F90.

◆ set_linear_operator()

procedure set_linear_operator

privateinherited

Definition at line 51 of file sll_m_linear_solver_iter_abstract.F90.

◆ set_tolerance()

procedure set_tolerance

privateinherited

Definition at line 52 of file sll_m_linear_solver_iter_abstract.F90.

◆ set_verbose()

procedure set_verbose

private

Definition at line 46 of file sll_m_linear_solver_cg.F90.

◆ set_verbose_abstract()

procedure set_verbose_abstract

privateinherited

Definition at line 48 of file sll_m_linear_solver_abstract.F90.

◆ solve()

generic solve

privateinherited

Definition at line 45 of file sll_m_linear_solver_abstract.F90.

◆ solve_real()

procedure solve_real

private

Definition at line 45 of file sll_m_linear_solver_cg.F90.

Member Data Documentation

◆ atol

real(kind=f64) atol = 1.0d-9

privateinherited

absolute tolerance

Definition at line 38 of file sll_m_linear_solver_iter_abstract.F90.

◆ is_allocated

logical is_allocated = .false.

privateinherited

Definition at line 40 of file sll_m_linear_solver_abstract.F90.

◆ n_cols

integer(kind=i32) n_cols = 0

privateinherited

number of columns

Definition at line 32 of file sll_m_linear_solver_abstract.F90.

◆ n_global_cols

integer(kind=i32) n_global_cols = 0

privateinherited

number of columns different from n_cols for linear operator

Definition at line 35 of file sll_m_linear_solver_abstract.F90.

◆ n_global_rows

integer(kind=i32) n_global_rows = 0

privateinherited

number of rows different from n_rows for distributed linear operator

Definition at line 34 of file sll_m_linear_solver_abstract.F90.

◆ n_maxiter

integer(kind=i32) n_maxiter = 2000

privateinherited

maximum number of iterations

Definition at line 35 of file sll_m_linear_solver_iter_abstract.F90.

◆ n_rows

integer(kind=i32) n_rows = 0

privateinherited

number of rows

Definition at line 31 of file sll_m_linear_solver_abstract.F90.

◆ n_total_cols

integer(kind=i32) n_total_cols = 0

privateinherited

n_global_cols * n_block_cols

Definition at line 38 of file sll_m_linear_solver_abstract.F90.

◆ n_total_rows

integer(kind=i32) n_total_rows = 0

privateinherited

n_global_rows * n_block_rows

Definition at line 37 of file sll_m_linear_solver_abstract.F90.

◆ null_space

logical null_space = .false.

privateinherited

true if singular linear operator:w

Definition at line 36 of file sll_m_linear_solver_iter_abstract.F90.

◆ p_linear_operator

class(sll_t_linear_operator_abstract), allocatable p_linear_operator

privateinherited

used for nullspace

Definition at line 43 of file sll_m_linear_solver_iter_abstract.F90.

◆ ptr_linear_operator

class(sll_t_linear_operator_abstract), pointer ptr_linear_operator => null()

privateinherited

pointer to the used linear operator

Definition at line 42 of file sll_m_linear_solver_iter_abstract.F90.

◆ ptr_pc_left

class(sll_t_linear_solver_abstract), pointer ptr_pc_left => null()

privateinherited

pointer to a left pc

Definition at line 44 of file sll_m_linear_solver_iter_abstract.F90.

◆ verbose

logical verbose = .false.

privateinherited

details output for diagnostic if true

Definition at line 41 of file sll_m_linear_solver_abstract.F90.

◆ x_0

real(kind=f64), dimension(:), allocatable x_0

privateinherited

for the initialization

Definition at line 40 of file sll_m_linear_solver_iter_abstract.F90.

Private Member Functions

Private Attributes

Detailed Description

Member Function/Subroutine Documentation

◆ check_convergence()

◆ compute_residual_error()

◆ create()

◆ free()

◆ initialize()

◆ initialize_abstract()

◆ print_info()

◆ read_from_file()

◆ set_guess()

◆ set_linear_operator()

◆ set_tolerance()

◆ set_verbose()

◆ set_verbose_abstract()

◆ solve()

◆ solve_real()

Member Data Documentation

◆ atol

◆ is_allocated

◆ n_cols

◆ n_global_cols

◆ n_global_rows

◆ n_maxiter

◆ n_rows

◆ n_total_cols

◆ n_total_rows

◆ null_space

◆ p_linear_operator

◆ ptr_linear_operator

◆ ptr_pc_left

◆ verbose

◆ x_0