krylov.f90 File Reference

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Data Types
type	krylov::ksp_monitor_t
	Type for storing initial and final residuals in a Krylov solver. More...
type	krylov::ksp_t
	Base abstract type for a canonical Krylov method, solving \( Ax = f \). More...
interface	krylov::ksp_init_intrf
	Abstract interface for a Krylov method's constructor. More...
interface	krylov::ksp_method
	Abstract interface for a Krylov method's solve routine. More...
interface	krylov::ksp_method_coupled
	Abstract interface for a Krylov method's coupled solve routine. More...
interface	krylov::ksp_t_free
	Abstract interface for deallocating a Krylov method. More...

Modules
module	krylov
	Implements the base abstract type for Krylov solvers plus helper types.

Functions/Subroutines
subroutine	krylov::krylov_init (this, max_iter, rel_tol, abs_tol, m, monitor)
	Factory for Krylov solvers. Both creates and initializes the object.
subroutine	krylov::krylov_free (this)
	Deallocate a Krylov solver.
subroutine	krylov::krylov_set_pc (this, m)
	Setup a Krylov solver's preconditioner.
subroutine	krylov::krylov_monitor_start (this, name)
	Monitor start.
subroutine	krylov::krylov_monitor_stop (this)
	Monitor stop.
subroutine	krylov::krylov_monitor_iter (this, iter, rnorm)
	Monitor iteration.
pure logical function	krylov::krylov_is_converged (this, iter, residual)
	Check for convergence.
subroutine	krylov::krylov_monitor_print_header (this)
	Print the Krylov solver's result header.
subroutine	krylov::krylov_monitor_print_result (this, step)
	Print the Krylov solver's result.

Variables
integer, parameter, public	krylov::ksp_max_iter = 1e3
	Maximum number of iters.
real(kind=rp), parameter, public	krylov::ksp_abs_tol = 1d-9
	Absolut tolerance.
real(kind=rp), parameter, public	krylov::ksp_rel_tol = 1d-9
	Relative tolerance.