NoMassCGSolver Class Reference

#include <NoMassCGSolver.h>

Inheritance diagram for NoMassCGSolver:

Public Member Functions
	NoMassCGSolver ()
	~NoMassCGSolver ()
int	init (int num_nodes, int num_elements, mesh_node *node, tetra_element_linear *elem, SimulationParams *params, int num_pinned_nodes, int *pinned_nodes_list, set< int > bsite_pinned_node_list)
int	solve (vector3 *x)
void	print_matrices (vector3 *force)
Public Member Functions inherited from Solver
	Solver ()
virtual	~Solver ()

Private Member Functions
scalar	conjugate_gradient_residual_assume_x_zero (vector3 *b)
scalar	residual2 ()
scalar	modx (vector3 *x)
scalar	get_alpha_denominator ()
scalar	parallel_apply_preconditioner ()
void	check (vector3 *x)
void	apply_matrix (scalar *in, scalar *result)

Private Attributes
SparseMatrixFixedPattern *	V
scalar	epsilon2
int	i_max
int	num_rows
int	num_nodes
scalar *	preconditioner
vector3 *	r
vector3 *	p
vector3 *	z
vector3 *	q
vector3 *	f
scalar	one

Constructor & Destructor Documentation

NoMassCGSolver()

NoMassCGSolver::NoMassCGSolver

(

)

Constructor

~NoMassCGSolver()

NoMassCGSolver::~NoMassCGSolver

(

)

Destructor

Member Function Documentation

apply_matrix()

void NoMassCGSolver::apply_matrix ( scalar *  in, scalar *  result  )

inlineprivatevirtual

Implements Solver.

check()

void NoMassCGSolver::check ( vector3 *  x )

private

conjugate_gradient_residual_assume_x_zero()

scalar NoMassCGSolver::conjugate_gradient_residual_assume_x_zero ( vector3 *  b )

private

Referenced by solve().

get_alpha_denominator()

scalar NoMassCGSolver::get_alpha_denominator ( )

private

Referenced by solve().

init()

int NoMassCGSolver::init ( int  num_nodes, int  num_elements, mesh_node *  node, tetra_element_linear *  elem, SimulationParams *  params, int  num_pinned_nodes, int *  pinned_nodes_list, set< int >  bsite_pinned_node_list  )

virtual

Builds a sparse matrix pattern for blob viscosity matrix from initial structure. Doesn't build the matrix though, just the key and whatnot

Implements Solver.

modx()

scalar NoMassCGSolver::modx ( vector3 *  x )

private

parallel_apply_preconditioner()

scalar NoMassCGSolver::parallel_apply_preconditioner ( )

private

Referenced by solve().

print_matrices()

void NoMassCGSolver::print_matrices

(

vector3 *

force

)

residual2()

scalar NoMassCGSolver::residual2 ( )

private

Referenced by solve().

solve()

int NoMassCGSolver::solve ( vector3 *  x )

virtual

Adds values to sparse viscosity matrix and uses it to solve the system Kv = f using conjugate gradient

Implements Solver.

Field Documentation

epsilon2

scalar NoMassCGSolver::epsilon2

private

Error tolerance threshold (squared) to determine when solution has converged

Referenced by init(), NoMassCGSolver(), solve(), and ~NoMassCGSolver().

f

vector3 * NoMassCGSolver::f

private

Referenced by check(), conjugate_gradient_residual_assume_x_zero(), init(), NoMassCGSolver(), residual2(), and ~NoMassCGSolver().

i_max

int NoMassCGSolver::i_max

private

Maximum number of iterations the solver should use before giving up (as solution is not converging)

Referenced by init(), NoMassCGSolver(), solve(), and ~NoMassCGSolver().

num_nodes

int NoMassCGSolver::num_nodes

private

Number of nodes

Referenced by check(), conjugate_gradient_residual_assume_x_zero(), get_alpha_denominator(), init(), modx(), NoMassCGSolver(), parallel_apply_preconditioner(), residual2(), solve(), and ~NoMassCGSolver().

num_rows

int NoMassCGSolver::num_rows

private

Number of rows in V (3 * num_nodes due to x, y and z)

Referenced by init(), NoMassCGSolver(), and ~NoMassCGSolver().

one

scalar NoMassCGSolver::one

private

Unchanging memory locoation

Referenced by init().

p

vector3 * NoMassCGSolver::p

private

Referenced by conjugate_gradient_residual_assume_x_zero(), get_alpha_denominator(), init(), NoMassCGSolver(), solve(), and ~NoMassCGSolver().

preconditioner

scalar* NoMassCGSolver::preconditioner

private

Jacobi preconditioner (inverse of the viscosity matrix diagonal)

Referenced by conjugate_gradient_residual_assume_x_zero(), init(), NoMassCGSolver(), parallel_apply_preconditioner(), solve(), and ~NoMassCGSolver().

q

vector3 * NoMassCGSolver::q

private

Referenced by get_alpha_denominator(), init(), NoMassCGSolver(), solve(), and ~NoMassCGSolver().

r

vector3* NoMassCGSolver::r

private

Work vectors

Referenced by conjugate_gradient_residual_assume_x_zero(), init(), NoMassCGSolver(), parallel_apply_preconditioner(), residual2(), solve(), and ~NoMassCGSolver().

V

SparseMatrixFixedPattern* NoMassCGSolver::V

private

Pointer to the viscosity matrix that will be created

Referenced by check(), get_alpha_denominator(), init(), NoMassCGSolver(), print_matrices(), solve(), and ~NoMassCGSolver().

z

vector3 * NoMassCGSolver::z

private

Referenced by conjugate_gradient_residual_assume_x_zero(), init(), NoMassCGSolver(), parallel_apply_preconditioner(), solve(), and ~NoMassCGSolver().

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

• NoMassCGSolver.h
• NoMassCGSolver.cpp