PreMGSolve.c File Reference

Algebraic multigrid iterations: SOLVE phase. More...

#include <time.h>
#include "fasp.h"
#include "fasp_functs.h"
#include "KryUtil.inl"

Go to the source code of this file.

Functions
INT	fasp_amg_solve (AMG_data *mgl, AMG_param *param)
	AMG – SOLVE phase. More...
INT	fasp_amg_solve_amli (AMG_data *mgl, AMG_param *param)
	AMLI – SOLVE phase. More...
INT	fasp_amg_solve_namli (AMG_data *mgl, AMG_param *param)
	Nonlinear AMLI – SOLVE phase. More...
void	fasp_famg_solve (AMG_data *mgl, AMG_param *param)
	FMG – SOLVE phase. More...

Detailed Description

Algebraic multigrid iterations: SOLVE phase.

Note

Solve Ax=b using multigrid method. This is SOLVE phase only and is independent of SETUP method used! Should be called after multigrid hierarchy has been generated!

This file contains Level-4 (Pre) functions. It requires: AuxMessage.c, AuxTiming.c, AuxVector.c, BlaSpmvCSR.c, BlaVector.c, PreMGCycle.c, PreMGCycleFull.c, and PreMGRecurAMLI.c

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Copyright (C) 2009–Present by the FASP team. All rights reserved.

Released under the terms of the GNU Lesser General Public License 3.0 or later.

Definition in file PreMGSolve.c.

Function Documentation

fasp_amg_solve()

INT fasp_amg_solve	(	AMG_data *	mgl,
		AMG_param *	param
	)

AMG – SOLVE phase.

Parameters

mgl	Pointer to AMG data: AMG_data
param	Pointer to AMG parameters: AMG_param

Returns

Iteration number if converges; ERROR otherwise.

Author

Xuehai Huang, Chensong Zhang

Date

04/02/2010

Modified by Chensong 04/21/2013: Fix an output typo

Definition at line 49 of file PreMGSolve.c.

fasp_amg_solve_amli()

INT fasp_amg_solve_amli	(	AMG_data *	mgl,
		AMG_param *	param
	)

AMLI – SOLVE phase.

Parameters

mgl	Pointer to AMG data: AMG_data
param	Pointer to AMG parameters: AMG_param

Returns

Iteration number if converges; ERROR otherwise.

Author

Xiaozhe Hu

Date

01/23/2011

Modified by Chensong 04/21/2013: Fix an output typo

Note

AMLI polynomial computed by the best approximation of 1/x. Refer to Johannes K. Kraus, Panayot S. Vassilevski, Ludmil T. Zikatanov, "Polynomial of best uniform approximation to $x^{-1}$ and smoothing in two-level methods", 2013.

Definition at line 142 of file PreMGSolve.c.

fasp_amg_solve_namli()

INT fasp_amg_solve_namli	(	AMG_data *	mgl,
		AMG_param *	param
	)

Nonlinear AMLI – SOLVE phase.

Parameters

mgl	Pointer to AMG data: AMG_data
param	Pointer to AMG parameters: AMG_param

Returns

Iteration number if converges; ERROR otherwise.

Author

Xiaozhe Hu

Date

04/30/2011

Modified by Chensong 04/21/2013: Fix an output typo

Note

Nonlinear AMLI-cycle.
Refer to Xiazhe Hu, Panayot S. Vassilevski, Jinchao Xu "Comparative Convergence Analysis of Nonlinear AMLI-cycle Multigrid", 2013.

Definition at line 230 of file PreMGSolve.c.

fasp_famg_solve()

void fasp_famg_solve	(	AMG_data *	mgl,
		AMG_param *	param
	)

FMG – SOLVE phase.

Parameters

mgl	Pointer to AMG data: AMG_data
param	Pointer to AMG parameters: AMG_param

Author

Chensong Zhang

Date

01/10/2012

Definition at line 308 of file PreMGSolve.c.