compvect Class Reference

#include <csv.h>

List of all members.

Public Member Functions
void	axpy (compvect *x, double aa)
void	axpy_known (compvect *x, double aa)
	compvect (long *ii, long nonz)
	compvect ()
void	copy (compvect *bc)
double	dotprod (compvect *cv)
void	reorder_components ()
void	setup_vector (double *b, long nc)
void	test_ordering ()
	~compvect ()
Public Attributes
double *	a
	array containing nonzero components
long *	ind
	array containing indices of nonzero components
double	limit
	limit for components extraction
long	n
	number of all components (including zero components) of the stored vector
long	nz
	number of nonzero components of the stored vector
long	ordering
	indicator of reordering

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Detailed Description

class deals with compressed sparse vector format

only nonzero vector components are stored in the array a corresponding indices are stored in the array ind

JK, 25.2.2007

Definition at line 13 of file csv.h.

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Constructor & Destructor Documentation

compvect

(

)

Definition at line 6 of file csv.cpp.

References a, ind, limit, n, nz, and ordering.

compvect	(	long *	ii,
		long	nonz
	)

Definition at line 18 of file csv.cpp.

References a, ind, limit, n, nz, and ordering.

~compvect

(

)

Definition at line 37 of file csv.cpp.

References a, and ind.

Referenced by copy().

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Member Function Documentation

void axpy	(	compvect *	x,
		double	aa
	)

function computes y = a*x + y

Parameters:

	x	- compressed sparse vector
	aa	- scalar

JK, 27.2.2007

Definition at line 169 of file csv.cpp.

References a, copy(), ind, and nz.

void axpy_known	(	compvect *	x,
		double	aa
	)

function computes y = a*x + y

Parameters:

	x	- compressed sparse vector
	aa	- scalar

JK, 27.2.2007

Definition at line 225 of file csv.cpp.

References a, and nz.

void copy

(

compvect *

bc

)

function copies current vector to back up vector bc

Parameters:

bc

- back up vector

JK, 27.2.2007

Definition at line 50 of file csv.cpp.

References a, ind, n, nz, and ~compvect().

Referenced by axpy().

double dotprod

(

compvect *

cv

)

function computes dot product of two compressed sparse vectors

Parameters:

JK, 25.2.2007

Definition at line 243 of file csv.cpp.

References a, ind, nz, and ordering.

void reorder_components

(

)

function reorders components indices are reordered increasingly

JK, 25.2.2007

Definition at line 135 of file csv.cpp.

References a, ind, nz, and ordering.

void setup_vector	(	double *	b,
		long	nc
	)

function sets up compressed sparse vector from dense vector

Parameters:

	b	- dense vector
	nc	- number of components of the dense vector

JK, 25.2.2007

Definition at line 76 of file csv.cpp.

References a, ind, limit, n, nz, and ordering.

Referenced by comprow::crxcv_cv().

void test_ordering

(

)

function tests ordering of indices of the vector

JK, 27.2.2007

Definition at line 117 of file csv.cpp.

References ind, nz, and ordering.

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Member Data Documentation

double* a

array containing nonzero components

Definition at line 36 of file csv.h.

Referenced by axpy(), axpy_known(), compvect(), copy(), comprow::crxcv_cv(), dotprod(), reorder_components(), setup_vector(), and ~compvect().

long* ind

array containing indices of nonzero components

Definition at line 38 of file csv.h.

Referenced by axpy(), compvect(), copy(), comprow::crxcv_cv(), dotprod(), reorder_components(), setup_vector(), test_ordering(), and ~compvect().

double limit

limit for components extraction

Definition at line 43 of file csv.h.

Referenced by compvect(), and setup_vector().

long n

number of all components (including zero components) of the stored vector

Definition at line 32 of file csv.h.

Referenced by compvect(), copy(), and setup_vector().

long nz

number of nonzero components of the stored vector

Definition at line 34 of file csv.h.

Referenced by aggregator::assemble_smoothed_prol2(), axpy(), axpy_known(), compvect(), copy(), comprow::crxcv_cv(), dotprod(), reorder_components(), setup_vector(), and test_ordering().

long ordering

indicator of reordering

Definition at line 41 of file csv.h.

Referenced by compvect(), comprow::crxcv_cv(), dotprod(), reorder_components(), setup_vector(), and test_ordering().

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

• SIFEL/GEFEL/csv.h
• SIFEL/GEFEL/csv.cpp