phmg Module Reference

Hybrid ph-multigrid preconditioner.

Data Types
type	phmg_hrchy_t
type	phmg_lvl_t
type	phmg_t

Functions/Subroutines
subroutine	phmg_init (this, coef, bclst, phmg_params)
subroutine	phmg_init_from_components (this, coef, bclst, smoother_itrs, cheby_acc, crs_tamg_lvls, crs_tamg_itrs, crs_tamg_cheby_degree, pcrs_sched, update_enabled)
subroutine	phmg_free (this)
subroutine	phmg_solve (this, z, r, n)
subroutine	phmg_update (this)
	Bring the preconditioner back in sync after the mesh has changed.
subroutine	phmg_update_coarse_geometry (this)
	Sample the new fine coordinates on the coarse levels and rebuild their metrics. Level 0 shares the caller's dofmap and coef, so it is skipped.
subroutine	phmg_update_smoother_acc (this)
	Rebuild the accelerator the Chebyshev smoother uses, which depends on the geometry.
subroutine	phmg_update_smoother_eigs (this)
	Mark every smoother to re-estimate its eigenvalues on the next solve.
subroutine	phmg_mg_cycle (this)
subroutine	phmg_jacobi_smoother (z, r, w, mg, msh, ax, n, lvl)
	Wraps jacobi solve as a residual update relaxation method.
subroutine	phmg_resid_monitor (z, r, w, mg, msh, ax, lvl, typ)
subroutine	print_phmg_info (nlvls, smoo_type, phmg)

Function/Subroutine Documentation

phmg_free()

subroutine phmg::phmg_free ( class(phmg_t), intent(inout)  this )

private

Definition at line 386 of file phmg.f90.

phmg_init()

subroutine phmg::phmg_init	(	class(phmg_t), intent(inout), target	this,
		type(coef_t), intent(in), target	coef,
		type(bc_list_t), intent(inout), target	bclst,
		type(json_file), intent(inout)	phmg_params
	)

Definition at line 134 of file phmg.f90.

phmg_init_from_components()

subroutine phmg::phmg_init_from_components ( class(phmg_t), intent(inout), target  this, type(coef_t), intent(in), target  coef, type(bc_list_t), intent(inout), target  bclst, integer, intent(in)  smoother_itrs, character(len=:), allocatable  cheby_acc, integer, intent(in)  crs_tamg_lvls, integer, intent(in)  crs_tamg_itrs, integer, intent(in)  crs_tamg_cheby_degree, integer, dimension(:), intent(in), allocatable  pcrs_sched, logical, intent(in), optional  update_enabled  )

private

Initialize Smoothers

Definition at line 187 of file phmg.f90.

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phmg_jacobi_smoother()

subroutine phmg::phmg_jacobi_smoother ( type(field_t), intent(inout)  z, type(field_t), intent(inout)  r, type(field_t), intent(inout)  w, type(phmg_lvl_t)  mg, type(mesh_t), intent(inout)  msh, class(ax_t), intent(inout)  ax, integer, intent(in)  n, integer, intent(in)  lvl  )

private

Parameters

z	solution vector (inout)
r	rhs vector
w	scratch work space vector
mg	phmg level from hierarchy
msh	mesh
Ax	matrix vector class object
n	vector length
lvl	not used

Definition at line 779 of file phmg.f90.

phmg_mg_cycle()

subroutine phmg::phmg_mg_cycle ( class(phmg_t), intent(inout)  this )

private

Definition at line 616 of file phmg.f90.

phmg_resid_monitor()

subroutine phmg::phmg_resid_monitor ( type(field_t)  z, type(field_t)  r, type(field_t)  w, type(phmg_lvl_t)  mg, type(mesh_t), intent(inout)  msh, class(ax_t), intent(inout)  ax, integer  lvl, integer  typ  )

private

Definition at line 815 of file phmg.f90.

phmg_solve()

subroutine phmg::phmg_solve ( class(phmg_t), intent(inout)  this, real(kind=rp), dimension(n), intent(inout)  z, real(kind=rp), dimension(n), intent(inout)  r, integer, intent(in)  n  )

private

Definition at line 454 of file phmg.f90.

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phmg_update()

subroutine phmg::phmg_update ( class(phmg_t), intent(inout)  this )

private

Definition at line 510 of file phmg.f90.

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phmg_update_coarse_geometry()

subroutine phmg::phmg_update_coarse_geometry ( class(phmg_t), intent(inout)  this )

private

Definition at line 540 of file phmg.f90.

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phmg_update_smoother_acc()

subroutine phmg::phmg_update_smoother_acc ( class(phmg_t), intent(inout)  this )

private

Definition at line 569 of file phmg.f90.

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phmg_update_smoother_eigs()

subroutine phmg::phmg_update_smoother_eigs ( class(phmg_t), intent(inout)  this )

private

Definition at line 597 of file phmg.f90.

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print_phmg_info()

subroutine phmg::print_phmg_info ( integer, intent(in)  nlvls, integer, intent(in)  smoo_type, type(phmg_hrchy_t)  phmg  )

private

Definition at line 846 of file phmg.f90.

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