tree_amg_smoother::amg_cheby_t Type Reference

Type for Chebyshev iteration using TreeAMG matvec. More...

Collaboration diagram for tree_amg_smoother::amg_cheby_t:

Public Member Functions
procedure, pass(this)	init (this, n, lvl, max_iter)
	Initialization of chebyshev.
procedure, pass(this)	solve (this, x, f, n, amg, zero_init)
	Chebyshev smoother From Saad's iterative methods textbook.
procedure, pass(this)	comp_eig (this, amg, n)
	Power method to approximate largest eigenvalue.
procedure, pass(this)	device_solve (this, x, f, x_d, f_d, n, amg, zero_init)
	Chebyshev smoother From Saad's iterative methods textbook.
procedure, pass(this)	device_comp_eig (this, amg, n)
	Power method to approximate largest eigenvalue.

Public Attributes
real(kind=rp), dimension(:), allocatable	d
type(c_ptr)	d_d = C_NULL_PTR
real(kind=rp), dimension(:), allocatable	w
type(c_ptr)	w_d = C_NULL_PTR
real(kind=rp), dimension(:), allocatable	r
type(c_ptr)	r_d = C_NULL_PTR
real(kind=rp)	tha
real(kind=rp)	dlt
integer	lvl
integer	n
integer	power_its = 250
integer	max_iter = 10
logical	recompute_eigs = .true.

Detailed Description

Definition at line 72 of file tree_amg_smoother.f90.

Member Function/Subroutine Documentation

comp_eig()

procedure, pass(this) tree_amg_smoother::amg_cheby_t::comp_eig	(	class(amg_cheby_t), intent(inout)	this,
		type(tamg_hierarchy_t), intent(inout)	amg,
		integer, intent(in)	n
	)

Parameters

amg	TreeAMG object
n	Number of dofs

Definition at line 88 of file tree_amg_smoother.f90.

device_comp_eig()

procedure, pass(this) tree_amg_smoother::amg_cheby_t::device_comp_eig	(	class(amg_cheby_t), intent(inout)	this,
		type(tamg_hierarchy_t), intent(inout)	amg,
		integer, intent(in)	n
	)

Parameters

amg	TreeAMG object
n	Number of dofs

Definition at line 90 of file tree_amg_smoother.f90.

device_solve()

procedure, pass(this) tree_amg_smoother::amg_cheby_t::device_solve	(	class(amg_cheby_t), intent(inout)	this,
		real(kind=rp), dimension(n), intent(inout)	x,
		real(kind=rp), dimension(n), intent(inout)	f,
		type(c_ptr)	x_d,
		type(c_ptr)	f_d,
		integer, intent(in)	n,
		class(tamg_hierarchy_t), intent(inout)	amg,
		logical, intent(in), optional	zero_init
	)

Parameters

x	The solution to be returned
f	The right-hand side
n	Number of dofs
amg	The TreeAMG object

Definition at line 89 of file tree_amg_smoother.f90.

init()

procedure, pass(this) tree_amg_smoother::amg_cheby_t::init	(	class(amg_cheby_t), intent(inout), target	this,
		integer, intent(in)	n,
		integer, intent(in)	lvl,
		integer, intent(in)	max_iter
	)

Parameters

n	Number of dofs
lvl	The tamg hierarchy level on which the iterations are to be applied
max_iter	The number of iterations (chebyshev degree)

Definition at line 86 of file tree_amg_smoother.f90.

solve()

procedure, pass(this) tree_amg_smoother::amg_cheby_t::solve	(	class(amg_cheby_t), intent(inout)	this,
		real(kind=rp), dimension(n), intent(inout)	x,
		real(kind=rp), dimension(n), intent(inout)	f,
		integer, intent(in)	n,
		class(tamg_hierarchy_t), intent(inout)	amg,
		logical, intent(in), optional	zero_init
	)

Parameters

x	The solution to be returned
f	The right-hand side
n	Number of dofs
amg	The TreeAMG object

Definition at line 87 of file tree_amg_smoother.f90.

Member Data Documentation

d

real(kind=rp), dimension(:), allocatable tree_amg_smoother::amg_cheby_t::d

Definition at line 73 of file tree_amg_smoother.f90.

d_d

type(c_ptr) tree_amg_smoother::amg_cheby_t::d_d = C_NULL_PTR

Definition at line 74 of file tree_amg_smoother.f90.

dlt

real(kind=rp) tree_amg_smoother::amg_cheby_t::dlt

Definition at line 79 of file tree_amg_smoother.f90.

lvl

integer tree_amg_smoother::amg_cheby_t::lvl

Definition at line 80 of file tree_amg_smoother.f90.

max_iter

integer tree_amg_smoother::amg_cheby_t::max_iter = 10

Definition at line 83 of file tree_amg_smoother.f90.

n

integer tree_amg_smoother::amg_cheby_t::n

Definition at line 81 of file tree_amg_smoother.f90.

power_its

integer tree_amg_smoother::amg_cheby_t::power_its = 250

Definition at line 82 of file tree_amg_smoother.f90.

r

real(kind=rp), dimension(:), allocatable tree_amg_smoother::amg_cheby_t::r

Definition at line 77 of file tree_amg_smoother.f90.

r_d

type(c_ptr) tree_amg_smoother::amg_cheby_t::r_d = C_NULL_PTR

Definition at line 78 of file tree_amg_smoother.f90.

recompute_eigs

logical tree_amg_smoother::amg_cheby_t::recompute_eigs = .true.

Definition at line 84 of file tree_amg_smoother.f90.

tha

real(kind=rp) tree_amg_smoother::amg_cheby_t::tha

Definition at line 79 of file tree_amg_smoother.f90.

w

real(kind=rp), dimension(:), allocatable tree_amg_smoother::amg_cheby_t::w

Definition at line 75 of file tree_amg_smoother.f90.

w_d

type(c_ptr) tree_amg_smoother::amg_cheby_t::w_d = C_NULL_PTR

Definition at line 76 of file tree_amg_smoother.f90.

---

The documentation for this type was generated from the following file:

• /home/runner/work/neko/neko/src/multigrid/tree_amg_smoother.f90