PreDataInit.c File Reference

Initialize important data structures. More...

#include "fasp.h"
#include "fasp_functs.h"

Go to the source code of this file.

Functions
void	fasp_precond_data_init (precond_data *pcdata)
	Initialize precond_data. More...
AMG_data *	fasp_amg_data_create (SHORT max_levels)
	Create and initialize AMG_data for classical and SA AMG. More...
void	fasp_amg_data_free (AMG_data *mgl, AMG_param *param)
	Free AMG_data data memeory space. More...
void	fasp_amg_data_free1 (AMG_data *mgl, AMG_param *param)
	Free AMG_data data memeory space. More...
AMG_data_bsr *	fasp_amg_data_bsr_create (SHORT max_levels)
	Create and initialize AMG_data data sturcture for AMG/SAMG (BSR format) More...
void	fasp_amg_data_bsr_free (AMG_data_bsr *mgl, AMG_param *param)
void	fasp_ilu_data_create (const INT iwk, const INT nwork, ILU_data *iludata)
	Allocate workspace for ILU factorization. More...
void	fasp_ilu_data_free (ILU_data *iludata)
	Create ILU_data sturcture. More...
void	fasp_swz_data_free (SWZ_data *swzdata)
	Free SWZ_data data memeory space. More...

Detailed Description

Initialize important data structures.

Note

This file contains Level-4 (Pre) functions. It requires: AuxMemory.c, AuxVector.c, BlaSparseBSR.c, and BlaSparseCSR.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.

Warning

Every structures should be initialized before usage.

Definition in file PreDataInit.c.

Function Documentation

fasp_amg_data_bsr_create()

AMG_data_bsr * fasp_amg_data_bsr_create

(

SHORT

max_levels

)

Create and initialize AMG_data data sturcture for AMG/SAMG (BSR format)

Parameters

max_levels

Max number of levels allowed

Returns

Pointer to the AMG_data data structure

Author

Xiaozhe Hu

Date

08/07/2011

Definition at line 283 of file PreDataInit.c.

fasp_amg_data_bsr_free()

void fasp_amg_data_bsr_free	(	AMG_data_bsr *	mgl,
		AMG_param *	param
	)

Definition at line 316 of file PreDataInit.c.

fasp_amg_data_create()

AMG_data * fasp_amg_data_create

(

SHORT

max_levels

)

Create and initialize AMG_data for classical and SA AMG.

Parameters

max_levels

Max number of levels allowed

Returns

Pointer to the AMG_data data structure

Author

Chensong Zhang

Date

2010/04/06

Definition at line 64 of file PreDataInit.c.

fasp_amg_data_free()

void fasp_amg_data_free	(	AMG_data *	mgl,
		AMG_param *	param
	)

Free AMG_data data memeory space.

Parameters

mgl	Pointer to the AMG_data
param	Pointer to AMG parameters

Author

Chensong Zhang

Date

2010/04/06

Modified by Chensong Zhang on 05/05/2013: Clean up param as well! Modified by Hongxuan Zhang on 12/15/2015: Free memory for Intel MKL PARDISO Modified by Chunsheng Feng on 02/12/2017: Permute A back to its origin for ILUtp Modified by Chunsheng Feng on 08/11/2017: Check for max_levels == 1

Definition at line 101 of file PreDataInit.c.

fasp_amg_data_free1()

void fasp_amg_data_free1	(	AMG_data *	mgl,
		AMG_param *	param
	)

Free AMG_data data memeory space.

Parameters

mgl	Pointer to the AMG_data
param	Pointer to AMG parameters

Author

Chensong Zhang

Date

2010/04/06

Modified by Chensong Zhang on 05/05/2013: Clean up param as well! Modified by Hongxuan Zhang on 12/15/2015: Free memory for Intel MKL PARDISO Modified by Chunsheng Feng on 02/12/2017: Permute A back to its origin for ILUtp Modified by Chunsheng Feng on 08/11/2017: Check for max_levels == 1

The difference with "fasp_amg_data_free1" is that matrix mgl[i].A does not belong to itself and cannot be destroyed here. Li Zhao, 05/20/2023

Definition at line 195 of file PreDataInit.c.

fasp_ilu_data_create()

void fasp_ilu_data_create	(	const INT	iwk,
		const INT	nwork,
		ILU_data *	iludata
	)

Allocate workspace for ILU factorization.

Parameters

iwk	Size of the index array
nwork	Size of the work array
iludata	Pointer to the ILU_data

Author

Chensong Zhang

Date

2010/04/06

Modified by Chunsheng Feng on 02/12/2017: add iperm array for ILUtp

Definition at line 411 of file PreDataInit.c.

fasp_ilu_data_free()

void fasp_ilu_data_free

(

ILU_data *

iludata

)

Create ILU_data sturcture.

Parameters

iludata

Pointer to ILU_data

Author

Chensong Zhang

Date

2010/04/03

Modified by Chunsheng Feng on 02/12/2017: add iperm array for ILUtp

Definition at line 445 of file PreDataInit.c.

fasp_precond_data_init()

void fasp_precond_data_init

(

precond_data *

pcdata

)

Initialize precond_data.

Parameters

pcdata

Preconditioning data structure

Author

Chensong Zhang

Date

2010/03/23

Definition at line 33 of file PreDataInit.c.

fasp_swz_data_free()

void fasp_swz_data_free

(

SWZ_data *

swzdata

)

Free SWZ_data data memeory space.

Parameters

swzdata

Pointer to the SWZ_data for Schwarz methods

Author

Xiaozhe Hu

Date

2010/04/06

Definition at line 494 of file PreDataInit.c.