rich_ops Module Reference

Operations concerning Richardson extrapolation. More...

Functions/Subroutines
integer function, public	init_rich ()
	Initialize Richardson extrapolation system.
subroutine, public	term_rich ()
	Terminate the Richardson extrapolation system.
logical function, public	do_rich ()
	Tests whether this Richardson level should be done.
integer function, public	start_rich_lvl ()
	Start a Richardson level.
subroutine, public	stop_rich_lvl ()
	Stop a Richardson level.
subroutine, public	calc_rich_ex (sol_val)
	Calculates the coefficients of the Eigenvalues in the Richardson extrapolation.
integer function, public	find_max_rich_lvl (lvl_rich_req, max_lvl_rich_file)
	Probe to find out which Richardson levels are available.

Detailed Description

Operations concerning Richardson extrapolation.

Function/Subroutine Documentation

calc_rich_ex()

subroutine, public rich_ops::calc_rich_ex

(

complex(dp), dimension(:), intent(in)

sol_val

)

Calculates the coefficients of the Eigenvalues in the Richardson extrapolation.

This is done using the recursive formula:

\[ s(l,i,:) = s(l,i-1,:) + \frac{1}{2^{2 \ p \ i} - 1} (s(l,i-1,:) - s(l-1,i-1,:)), \]

where \(s\) = sol_val_rich, \(i\) = ir, \(l\) = lvl and \(p\) = norm_disc_prec_sol, the order of the numerical discretization. as described in [4], algorithm 3.2, p. 306.

Parameters

[in]

sol_val

EV for this Richardson level

Definition at line 458 of file rich_ops.f90.

Here is the call graph for this function:

Here is the caller graph for this function:

do_rich()

logical function, public rich_ops::do_rich

Tests whether this Richardson level should be done.

Definition at line 312 of file rich_ops.f90.

Here is the call graph for this function:

Here is the caller graph for this function:

find_max_rich_lvl()

integer function, public rich_ops::find_max_rich_lvl	(	integer, intent(inout)	lvl_rich_req,
		integer, intent(inout)	max_lvl_rich_file )

Probe to find out which Richardson levels are available.

Returns

ierr

Parameters

[in,out]	lvl_rich_req	requested Richardson level
[in,out]	max_lvl_rich_file	max. Richardson level found in file

Definition at line 537 of file rich_ops.f90.

Here is the call graph for this function:

Here is the caller graph for this function:

init_rich()

integer function, public rich_ops::init_rich

Initialize Richardson extrapolation system.

Needs to be called only once.

Returns

ierr

Definition at line 27 of file rich_ops.f90.

Here is the call graph for this function:

Here is the caller graph for this function:

start_rich_lvl()

integer function, public rich_ops::start_rich_lvl

Start a Richardson level.

Calculates n_par_X for this level. Then uses this to divide the jobs. equilibrium Finally, the limits are set up for these jobs.

Returns

ierr

Definition at line 326 of file rich_ops.f90.

Here is the call graph for this function:

Here is the caller graph for this function:

stop_rich_lvl()

subroutine, public rich_ops::stop_rich_lvl

Stop a Richardson level.

It decides whether convergence has been reached, and possibly sets a guess for the next level.

Definition at line 404 of file rich_ops.f90.

Here is the call graph for this function:

Here is the caller graph for this function:

term_rich()

subroutine, public rich_ops::term_rich

Terminate the Richardson extrapolation system.

Needs to be called only once.

Definition at line 219 of file rich_ops.f90.

Here is the call graph for this function:

Here is the caller graph for this function: