sll_m_poisson_2d_fem Module Reference

Description

Poisson solver using finite element.

Solve Poisson equation on irregular cartesian domain with finite elements.

• Compact boundary conditions.
• Linear system solve with lapack (Choleski)

Derived types and interfaces
type	sll_t_poisson_2d_fem
	Structure to solve Poisson equation on 2d domain. Mesh is cartesian and could be irregular. More...
interface	sll_o_create
	Initialize the solver. More...
interface	sll_o_solve
	Compute the electric potential. More...

Functions/Subroutines
subroutine	initialize_poisson_2d_fem (self, x, y, nn_x, nn_y)
	Initialize Poisson solver object using finite elements method. More...
integer function	som (nx, i, j, k)
	Get the node index. More...
subroutine	solve_poisson_2d_fem (self, ex, ey, rho)
	Solve the poisson equation. More...

Function/Subroutine Documentation

initialize_poisson_2d_fem()

subroutine sll_m_poisson_2d_fem::initialize_poisson_2d_fem ( type(sll_t_poisson_2d_fem)  self, real(kind=f64), dimension(nn_x)  x, real(kind=f64), dimension(nn_y)  y, integer(kind=i32), intent(in)  nn_x, integer(kind=i32), intent(in)  nn_y  )

private

Initialize Poisson solver object using finite elements method.

Parameters

	self	solver data structure
[in]	nn_x	number of cells along x
[in]	nn_y	number of cells along y
	x	x nodes coordinates
	y	y nodes coordinates

Definition at line 57 of file sll_m_poisson_2d_fem.F90.

solve_poisson_2d_fem()

subroutine sll_m_poisson_2d_fem::solve_poisson_2d_fem ( type(sll_t_poisson_2d_fem)  self, real(kind=f64), dimension(:, :)  ex, real(kind=f64), dimension(:, :)  ey, real(kind=f64), dimension(:, :)  rho  )

private

Solve the poisson equation.

Parameters

self	Poisson solver object
ex	x electric field
ey	y electric field
rho	charge density

Definition at line 221 of file sll_m_poisson_2d_fem.F90.

som()

integer function sll_m_poisson_2d_fem::som ( integer  nx, integer  i, integer  j, integer  k  )

private

Get the node index.

Definition at line 204 of file sll_m_poisson_2d_fem.F90.

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