saddpoint Class Reference

#include <saddpoint.h>

Public Member Functions
void	get_jumps (long nc, double *jumps)
void	initiate (seqselnodes selnodfeti, gtopology top, FILE *out)
void	matrix_e ()
void	read (XFILE *in)
	saddpoint ()
void	solve_system (gtopology top, gmatrix gm, double lhs, double rhs, FILE *out)
	~saddpoint ()
Public Attributes
double *	c
long **	ccn
long **	cndom
densemat *	dm
	dense matrix for the final system of equations
double *	e
	matrix E
long **	edofs
long	n
long *	ncdofd
long	ndofcp
	number of DOFs (unknowns) in coarse problem
long *	ndofdom
long	nidof
	number of internal DOFs
long	nm
	number of dual unknowns (number of Lagrange multipliers)
long	nrdof
	number of reduced/boundary/interface DOFs
long	ns
	number of subdomains
long *	nsid

Detailed Description

class deals with saddle point problems

JK, 28.11.2007

Definition at line 13 of file saddpoint.h.

Constructor & Destructor Documentation

saddpoint ( )

Definition at line 3 of file saddpoint.cpp.

References c, dm, nm, and nrdof.

~saddpoint ( )

Definition at line 16 of file saddpoint.cpp.

References c, and dm.

Member Function Documentation

void get_jumps	(	long	nc,
		double *	jumps
	)

Definition at line 190 of file saddpoint.cpp.

References c.

void initiate	(	seqselnodes *	selnodfeti,
		gtopology *	top,
		FILE *	out
	)

Definition at line 25 of file saddpoint.cpp.

References ccn, cndom, edofs, gtopology::give_dof(), gtopology::give_ndofn(), ncdofd, ndofdom, gtopology::nn, seqtop::nnsd, ns, nsid, and gtopology::stop.

void matrix_e ( )

Definition at line 184 of file saddpoint.cpp.

void read ( XFILE * in )

void solve_system	(	gtopology *	top,
		gmatrix *	gm,
		double *	lhs,
		double *	rhs,
		FILE *	out
	)

function solves system of equations

Parameters:

	top	- general topology
	gm	- general matrix
	lhs	- array of solution
	rhs	- vector of the right hand side
	out	- output file

JK, 28.11.2007

Definition at line 216 of file saddpoint.cpp.

References densemat::a, densemat::alloc(), c, gmatrix::condense(), condmat(), densemat::dealloc(), dm, densemat::gemp(), limit, n, gtopology::nbdof, gtopology::nidof, nidof, nm, and nrdof.

Member Data Documentation

double* c

Definition at line 41 of file saddpoint.h.

Referenced by get_jumps(), saddpoint(), solve_system(), and ~saddpoint().

long** ccn

array of coarse code numbers it contains tnbn rows and ncdofd[i] columns ccn[i][j]=k - the j-th contribution from the i-th subdomain goes to the k-th coarse unknown

Definition at line 60 of file saddpoint.h.

Referenced by initiate().

long** cndom

list of DOFs on subdomains cndom[i][j]=k - the j-th DOF on the i-th subdomain has number k

Definition at line 73 of file saddpoint.h.

Referenced by initiate().

densemat* dm

dense matrix for the final system of equations

Definition at line 39 of file saddpoint.h.

Referenced by saddpoint(), solve_system(), and ~saddpoint().

double* e

matrix E

Definition at line 77 of file saddpoint.h.

long** edofs

array containing code numbers contributing to the coarse problem extracted values from subdomains to the coarse problem edofs[i][j]=k - the j-th components contributing to the coarse problem from the i-th subdomains has number k

Definition at line 55 of file saddpoint.h.

Referenced by initiate().

long n

Definition at line 29 of file saddpoint.h.

Referenced by solve_system().

long* ncdofd

array of numbers of unknowns (DOFs) contributing to the coarse problem ncdofd contains nproc components ncdofd[i]=j - the i-th subdomains contributes to coarse problem by j contributions

Definition at line 50 of file saddpoint.h.

Referenced by initiate().

long ndofcp

number of DOFs (unknowns) in coarse problem

Definition at line 45 of file saddpoint.h.

long* ndofdom

numbers of DOFs on subdomains ndofdom[i]=j - the i-th subdomain contains j DOFs

Definition at line 69 of file saddpoint.h.

Referenced by initiate().

long nidof

number of internal DOFs

Definition at line 36 of file saddpoint.h.