PreAMGCoarsenCR.c File Reference

Coarsening with Brannick-Falgout strategy. More...

#include <math.h>
#include "fasp.h"
#include "fasp_functs.h"
#include "PreAMGUtil.inl"

Go to the source code of this file.

Functions
INT	fasp_amg_coarsening_cr (const INT i_0, const INT i_n, dCSRmat *A, ivector *vertices, AMG_param *param)
	CR coarsening. More...

Detailed Description

Coarsening with Brannick-Falgout strategy.

Note

This file contains Level-4 (Pre) functions. It requires: AuxMemory.c, AuxThreads.c, and ItrSmootherCSRcr.c

---

Copyright (C) 2010–Present by the FASP team. All rights reserved.

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

// TODO: Not completed! –Chensong

Definition in file PreAMGCoarsenCR.c.

Macro Definition Documentation

AMG_COARSEN_CR

#define AMG_COARSEN_CR

Definition at line 25 of file PreAMGCoarsenCR.c.

Function Documentation

fasp_amg_coarsening_cr()

INT fasp_amg_coarsening_cr	(	const INT	i_0,
		const INT	i_n,
		dCSRmat *	A,
		ivector *	vertices,
		AMG_param *	param
	)

CR coarsening.

Parameters

i_0	Starting index
i_n	Ending index
A	Pointer to dCSRmat: the coefficient matrix (index starts from 0)
vertices	Pointer to CF, 0: Fpt (current level) or 1: Cpt
param	Pointer to AMG_param: AMG parameters

Returns

Number of coarse level points

Author

James Brannick

Date

04/21/2010

Note

vertices = 0: fine; 1: coarse; 2: isolated or special

Modified by Chunsheng Feng, Zheng Li on 10/14/2012

CR STAGES

Definition at line 62 of file PreAMGCoarsenCR.c.