elemmat Class Reference

#include <elemmat.h>

List of all members.

Public Member Functions
void	addmat_em (double c, elemmat &dm)
void	alloc (gtopology *top)
void	cg (double *x, double *y, long ni, double err, long &ani, double &ares, double zero, long iv)
void	changedecomp ()
long	decomp ()
	elemmat (void)
void	initiate (gtopology *top, long ndof, long mespr)
void	localize (matrix &b, long *cn, long eid)
void	localized (double *b, long *cn, long eid, long m)
void	mxv_em (double *b, double *c)
void	nullmat ()
void	printmat (FILE *out)
void	scalmat_em (double c)
double **	status ()
	~elemmat (void)
Public Attributes
double **	a
	array containing element matrices
long **	acn
	array containing code numbers of finite elements
long *	andofe
	array containing number of DOFs on elements
long	decompid
	decomposition indicator
long	maxarr
	maximum number of components in local vector
long	mem
	total number of stored entries
long	n
	number of unknowns (degrees of freedom)
long	ne
	number of finite elements
long *	neme
	array containing number of matrix entries on elements

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Detailed Description

class elemmat serves for storage of matrices of finite elements no global matrix is used, only iterative methods are applicable, maximum exploatation of cache is considered

JK

Definition at line 16 of file elemmat.h.

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Constructor & Destructor Documentation

elemmat

(

void

)

Definition at line 6 of file elemmat.cpp.

References a, acn, andofe, decompid, maxarr, mem, n, ne, and neme.

~elemmat

(

void

)

Definition at line 29 of file elemmat.cpp.

References a, acn, andofe, ne, and neme.

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Member Function Documentation

void addmat_em	(	double	c,
		elemmat &	dm
	)

Definition at line 176 of file elemmat.cpp.

References a, ne, and neme.

void alloc

(

gtopology *

top

)

Definition at line 44 of file elemmat.cpp.

References a, acn, andofe, gtopology::give_ndofe(), maxarr, mem, gtopology::ne, ne, and neme.

Referenced by initiate().

void cg	(	double *	x,
		double *	y,
		long	ni,
		double	err,
		long &	ani,
		double &	ares,
		double	zero,
		long	iv
	)

function solves system of linear algebraic equations by conjugate gradient method,

Parameters:

	x	- vector of unknowns
	y	- vector of right hand side
	ni	- maximum number of iterations
	err	- required error (norm of residual vector)
	ani	- number of performed iterations
	ares	- attained error (norm of residual vector)
	zero	- computer zero
	iv	- initial values indicator

iv=0 - initial vector is zero vector iv=1 - initial vector is taken from x array

26.6.2003

Definition at line 227 of file elemmat.cpp.

References mxv_em(), n, p, and ss().

Referenced by gmatrix::solve_system().

void changedecomp

(

)

Definition at line 84 of file elemmat.cpp.

References decompid.

long decomp

(

)

Definition at line 79 of file elemmat.cpp.

References decompid.

void initiate	(	gtopology *	top,
		long	ndof,
		long	mespr
	)

Definition at line 128 of file elemmat.cpp.

References alloc(), n, nullmat(), and status().

Referenced by gmatrix::initiate().

void localize	(	matrix &	b,
		long *	cn,
		long	eid
	)

Definition at line 100 of file elemmat.cpp.

References a, acn, and matrix::m.

Referenced by gmatrix::localize().

void localized	(	double *	b,
		long *	cn,
		long	eid,
		long	m
	)

Definition at line 114 of file elemmat.cpp.

References a, and acn.

Referenced by gmatrix::localized().

void mxv_em	(	double *	b,
		double *	c
	)

Definition at line 143 of file elemmat.cpp.

References a, acn, andofe, maxarr, mxv(), n, ne, and nullv().

Referenced by cg().

void nullmat

(

)

Definition at line 90 of file elemmat.cpp.

References a, ne, and neme.

Referenced by initiate().

void printmat

(

FILE *

out

)

Definition at line 196 of file elemmat.cpp.

References a, ne, and neme.

Referenced by gmatrix::printmat().

void scalmat_em

(

double

c

)

Definition at line 186 of file elemmat.cpp.

References a, ne, and neme.

double ** status

(

)

Definition at line 74 of file elemmat.cpp.

References a.

Referenced by initiate().

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Member Data Documentation

double** a

array containing element matrices

Definition at line 50 of file elemmat.h.

Referenced by addmat_em(), alloc(), elemmat(), localize(), localized(), mxv_em(), nullmat(), printmat(), scalmat_em(), status(), and ~elemmat().

long** acn

array containing code numbers of finite elements

Definition at line 52 of file elemmat.h.

Referenced by alloc(), elemmat(), localize(), localized(), mxv_em(), and ~elemmat().

long* andofe

array containing number of DOFs on elements

Definition at line 46 of file elemmat.h.

Referenced by alloc(), elemmat(), mxv_em(), and ~elemmat().

long decompid

decomposition indicator

Definition at line 54 of file elemmat.h.

Referenced by changedecomp(), decomp(), elemmat(), and gmatrix::prepmat().

long maxarr

maximum number of components in local vector

Definition at line 44 of file elemmat.h.

Referenced by alloc(), elemmat(), and mxv_em().

long mem

total number of stored entries

Definition at line 42 of file elemmat.h.

Referenced by alloc(), and elemmat().

long n

number of unknowns (degrees of freedom)

Definition at line 38 of file elemmat.h.

Referenced by cg(), elemmat(), initiate(), and mxv_em().

long ne

number of finite elements

Definition at line 40 of file elemmat.h.

Referenced by addmat_em(), alloc(), elemmat(), mxv_em(), nullmat(), printmat(), scalmat_em(), and ~elemmat().

long* neme

array containing number of matrix entries on elements

Definition at line 48 of file elemmat.h.

Referenced by addmat_em(), alloc(), elemmat(), nullmat(), printmat(), scalmat_em(), and ~elemmat().

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The documentation for this class was generated from the following files:

• SIFEL/GEFEL/elemmat.h
• SIFEL/GEFEL/elemmat.cpp