flexMatrixGPU< T > Class Template Reference

represents a (CUDA) matrix More...

#include <flexMatrixGPU.h>

Inheritance diagram for flexMatrixGPU< T >:

Public Member Functions
	flexMatrixGPU (int aNumRows, int aNumCols, int *rowList, int *colList, T *indexVal, bool formatCRS, bool aMinus)
	initializes a matrix More...
flexMatrixGPU< T > *	copy ()
	copies the linear operator More...
void	times (bool transposed, const Tdata &input, Tdata &output)
	applies linear operator on vector More...
void	timesPlus (bool transposed, const Tdata &input, Tdata &output)
	applies linear operator on vector and adds its result to y More...
void	timesMinus (bool transposed, const Tdata &input, Tdata &output)
	applies linear operator on vector and substracts its result from y More...
T	getMaxRowSumAbs (bool transposed)
	returns the maximum sum of absolute values per row used for preconditioning More...
std::vector< T >	getAbsRowSum (bool transposed)
	returns a vector of sum of absolute values per row used for preconditioning More...
void	printRow (int i)
	prints requested row More...
void	printMatrix ()
	prints the whole matrix
thrust::device_vector< T >	getAbsRowSumCUDA (bool transposed)
	same function as getAbsRowSum() but implemented in CUDA More...
Public Member Functions inherited from flexLinearOperator< T >
	flexLinearOperator (int aNumRows, int aNumCols, linOp aType, bool aIsMinus)
	initializes the linear operator More...
int	getNumCols () const
	returns number of columns of the linear operator More...
int	getNumRows () const
	returns number of rows of the linear operator More...
void	setNumCols (int aNumCols)
	sets the number of columns of the linear operator More...
void	setNumRows (int aNumRows)
	sets the number of rows of the linear operator More...
void	setMinus (bool aIsMinus)
	constrols if operator should be negated or not More...

Additional Inherited Members
Public Attributes inherited from flexLinearOperator< T >
linOp	type
	type of linear operator More...
bool	isMinus
	determines if operator is negated

Detailed Description

template<typename T>
class flexMatrixGPU< T >

represents a (CUDA) matrix

Constructor & Destructor Documentation

flexMatrixGPU()

template<typename T>

flexMatrixGPU< T >::flexMatrixGPU ( int  aNumRows, int  aNumCols, int *  rowList, int *  colList, T *  indexVal, bool  formatCRS, bool  aMinus  )

inline

initializes a matrix

Parameters

aNumRows	number of rows
aNumCols	number of cols
rowList	array of row indices
colList	array of column indices
indexVal	array of data corresponding row and column indices
formatCRS	determines if the input data is in compressed row storage
aMinus	determines if operator is negated

See also

isMinus

Member Function Documentation

copy()

template<typename T>

flexMatrixGPU<T>* flexMatrixGPU< T >::copy ( )

inlinevirtual

copies the linear operator

Returns

copy of linear operator

Implements flexLinearOperator< T >.

getAbsRowSum()

template<typename T>

std::vector<T> flexMatrixGPU< T >::getAbsRowSum ( bool  transposed )

inlinevirtual

returns a vector of sum of absolute values per row used for preconditioning

Parameters

transposed

is true if operator should be (temporarily) transposed before usage

Returns

vector of sum of absolute values per row

Implements flexLinearOperator< T >.

getAbsRowSumCUDA()

template<typename T>

thrust::device_vector<T> flexMatrixGPU< T >::getAbsRowSumCUDA ( bool  transposed )

inlinevirtual

same function as getAbsRowSum() but implemented in CUDA

Parameters

transposed

is true if operator should be (temporarily) transposed before usage

Returns

vector of sum of absolute values per row

Implements flexLinearOperator< T >.

getMaxRowSumAbs()

template<typename T>

T flexMatrixGPU< T >::getMaxRowSumAbs ( bool  transposed )

inlinevirtual

returns the maximum sum of absolute values per row used for preconditioning

Parameters

transposed

is true if operator should be (temporarily) transposed before usage

Returns

maximum sum of absolute values per row

Implements flexLinearOperator< T >.

printRow()

template<typename T>

void flexMatrixGPU< T >::printRow ( int  i )

inline

prints requested row

Parameters

i	row to be printed

times()

template<typename T>

void flexMatrixGPU< T >::times ( bool  transposed, const Tdata &  input, Tdata &  output  )

inlinevirtual

applies linear operator on vector

equals

Parameters

transposed	is true if operator should be (temporarily) transposed before usage
input	data to be processed
output	output data

Implements flexLinearOperator< T >.

timesMinus()

template<typename T>

void flexMatrixGPU< T >::timesMinus ( bool  transposed, const Tdata &  input, Tdata &  output  )

inlinevirtual

applies linear operator on vector and substracts its result from y

equals

Parameters

transposed	is true if operator should be (temporarily) transposed before usage
input	data to be processed
output	output data

Implements flexLinearOperator< T >.

timesPlus()

template<typename T>

void flexMatrixGPU< T >::timesPlus ( bool  transposed, const Tdata &  input, Tdata &  output  )

inlinevirtual

applies linear operator on vector and adds its result to y

equals

Parameters

transposed	is true if operator should be (temporarily) transposed before usage
input	data to be processed
output	output data

Implements flexLinearOperator< T >.

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

• flexMatrixGPU.h