lama::CUDAELLUtils Class Reference

This class provides routines to converse ELL storage data to CSR storage data and vice versa. More...

#include <CUDAELLUtils.hpp>

Static Public Member Functions
static IndexType	ellindex (const IndexType i, const IndexType jj, const IndexType numRows)
	Addressing function for the arrays ia and ja: column-wise.
static IndexType	countNonEmptyRowsBySizes (const IndexType sizes[], const IndexType numRows)
	This method computes the total number of non-zero rows by the size array.
static bool	hasDiagonalProperty (const IndexType numDiagonals, const IndexType ellJA[])
	check diagonal property.
static void	setNonEmptyRowsBySizes (IndexType rowIndexes[], const IndexType numNonEmptyRows, const IndexType sizes[], const IndexType numRows)
	Build a vector of indexes for non-empty rows.
static void	check (const IndexType mNumRows, const IndexType mNumValuesPerRow, const IndexType mNumColumns, const IndexType *ia, const IndexType *ja, const char *msg)
template<typename ValueType , typename OtherValueType >
static void	getRow (OtherValueType *row, const IndexType i, const IndexType numRows, const IndexType numColumns, const IndexType *ia, const IndexType *ja, const ValueType *values)
	Returns one row of the matrix.
template<typename ValueType , typename OtherValueType >
static OtherValueType	getValue (const IndexType i, const IndexType j, const IndexType numRows, const IndexType *ia, const IndexType *ja, const ValueType *values)
	Returns one value of the matrix.
template<typename ValueType , typename OtherValueType >
static void	scaleValue (const IndexType numRows, const IndexType Ia[], ValueType mValues[], const OtherValueType values[])
	Scales matrix using an vector.
template<typename ELLValueType , typename CSRValueType >
static void	getCSRValues (IndexType csrJA[], CSRValueType csrValues[], const IndexType csrIA[], const IndexType numRows, const IndexType ellSizes[], const IndexType ellJA[], const ELLValueType ellValues[])
	Implementation for ELLUtilsInterface::Conversions::getCSRValues.
template<typename ELLValueType , typename CSRValueType >
static void	setCSRValues (IndexType ellJA[], ELLValueType ellValues[], const IndexType ellSizes[], const IndexType numRows, const IndexType numValuesPerRow, const IndexType csrIA[], const IndexType csrJA[], const CSRValueType csrValues[])
	Helper routine for conversion CSR to ELL format.
template<typename ValueType >
static void	normalGEMV (ValueType result[], const ValueType alpha, const ValueType x[], const ValueType beta, const ValueType y[], const IndexType numRows, const IndexType numNonZerosPerRows, const IndexType csrIA[], const IndexType csrJA[], const ValueType csrValues[], class SyncToken *syncToken)
	Implementation for CSRUtilsInterface::Mult::normalGEMV.
template<typename ValueType >
static void	sparseGEMV (ValueType result[], const IndexType numRows, const IndexType numNonZerosPerRows, const ValueType alpha, const ValueType x[], const IndexType numNonZeroRows, const IndexType rowIndexes[], const IndexType csrIA[], const IndexType csrJA[], const ValueType csrValues[], class SyncToken *syncToken)
	Implementation for CSRUtilsInterface::Mult::sparseGEMV.
template<typename ValueType >
static void	jacobi (ValueType solution[], const IndexType numRows, const IndexType ellNumValuesPerRow, const IndexType ellSizes[], const IndexType ellJA[], const ValueType ellValues[], const ValueType oldSolution[], const ValueType rhs[], const ValueType omega, class SyncToken *syncToken)
	Implementation for ELLUtilsInterface::Solver::jacobi.
template<typename ValueType >
static void	jacobiHalo (ValueType solution[], const IndexType numRows, const ValueType diagonal[], const IndexType ellNumValuesPerRow, const IndexType ellSizes[], const IndexType ellJA[], const ValueType ellValues[], const IndexType rowIndexes[], const IndexType numNonEmptyRows, const ValueType oldSolution[], const ValueType omega, class SyncToken *syncToken)
	Implementation for ELLUtilsInterface::Solver::jacobiHalo.
static void	setInterface (struct ELLUtilsInterface &ELLUtils)
	Routine that registers all routines of this class at the LAMA interface.
Private Member Functions
	LAMA_LOG_DECL_STATIC_LOGGER (logger)

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Detailed Description

This class provides routines to converse ELL storage data to CSR storage data and vice versa.

All routines work on already allocated data and utilize CUDA for their parallelization.

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Member Function Documentation

static void lama::CUDAELLUtils::check	(	const IndexType	mNumRows,
		const IndexType	mNumValuesPerRow,
		const IndexType	mNumColumns,
		const IndexType *	ia,
		const IndexType *	ja,
		const char *	msg
	)		[static]

static IndexType lama::CUDAELLUtils::countNonEmptyRowsBySizes	(	const IndexType	sizes[],
		const IndexType	numRows
	)		[static]

This method computes the total number of non-zero rows by the size array.

static IndexType lama::CUDAELLUtils::ellindex	(	const IndexType	i,
		const IndexType	jj,
		const IndexType	numRows
	)		[inline, static]

Addressing function for the arrays ia and ja: column-wise.

template<typename ELLValueType , typename CSRValueType >

static void lama::CUDAELLUtils::getCSRValues	(	IndexType	csrJA[],
		CSRValueType	csrValues[],
		const IndexType	csrIA[],
		const IndexType	numRows,
		const IndexType	ellSizes[],
		const IndexType	ellJA[],
		const ELLValueType	ellValues[]
	)		[static]

Implementation for ELLUtilsInterface::Conversions::getCSRValues.

template<typename ValueType , typename OtherValueType >

static void lama::CUDAELLUtils::getRow	(	OtherValueType *	row,
		const IndexType	i,
		const IndexType	numRows,
		const IndexType	numColumns,
		const IndexType *	ia,
		const IndexType *	ja,
		const ValueType *	values
	)		[static]

Returns one row of the matrix.

template<typename ValueType , typename OtherValueType >

static OtherValueType lama::CUDAELLUtils::getValue	(	const IndexType	i,
		const IndexType	j,
		const IndexType	numRows,
		const IndexType *	ia,
		const IndexType *	ja,
		const ValueType *	values
	)		[static]

Returns one value of the matrix.

static bool lama::CUDAELLUtils::hasDiagonalProperty	(	const IndexType	numDiagonals,
		const IndexType	ellJA[]
	)		[static]

check diagonal property.

ELL format with diagonal property: diagonal is just the first column in mValues

template<typename ValueType >

static void lama::CUDAELLUtils::jacobi	(	ValueType	solution[],
		const IndexType	numRows,
		const IndexType	ellNumValuesPerRow,
		const IndexType	ellSizes[],
		const IndexType	ellJA[],
		const ValueType	ellValues[],
		const ValueType	oldSolution[],
		const ValueType	rhs[],
		const ValueType	omega,
		class SyncToken *	syncToken
	)		[static]

Implementation for ELLUtilsInterface::Solver::jacobi.

template<typename ValueType >

static void lama::CUDAELLUtils::jacobiHalo	(	ValueType	solution[],
		const IndexType	numRows,
		const ValueType	diagonal[],
		const IndexType	ellNumValuesPerRow,
		const IndexType	ellSizes[],
		const IndexType	ellJA[],
		const ValueType	ellValues[],
		const IndexType	rowIndexes[],
		const IndexType	numNonEmptyRows,
		const ValueType	oldSolution[],
		const ValueType	omega,
		class SyncToken *	syncToken
	)		[static]

Implementation for ELLUtilsInterface::Solver::jacobiHalo.

lama::CUDAELLUtils::LAMA_LOG_DECL_STATIC_LOGGER

(

logger

)

[private]

template<typename ValueType >

static void lama::CUDAELLUtils::normalGEMV	(	ValueType	result[],
		const ValueType	alpha,
		const ValueType	x[],
		const ValueType	beta,
		const ValueType	y[],
		const IndexType	numRows,
		const IndexType	numNonZerosPerRows,
		const IndexType	csrIA[],
		const IndexType	csrJA[],
		const ValueType	csrValues[],
		class SyncToken *	syncToken
	)		[static]

Implementation for CSRUtilsInterface::Mult::normalGEMV.

template<typename ValueType , typename OtherValueType >

static void lama::CUDAELLUtils::scaleValue	(	const IndexType	numRows,
		const IndexType	Ia[],
		ValueType	mValues[],
		const OtherValueType	values[]
	)		[static]

Scales matrix using an vector.

template<typename ELLValueType , typename CSRValueType >

static void lama::CUDAELLUtils::setCSRValues	(	IndexType	ellJA[],
		ELLValueType	ellValues[],
		const IndexType	ellSizes[],
		const IndexType	numRows,
		const IndexType	numValuesPerRow,
		const IndexType	csrIA[],
		const IndexType	csrJA[],
		const CSRValueType	csrValues[]
	)		[static]

Helper routine for conversion CSR to ELL format.

static void lama::CUDAELLUtils::setInterface

(

struct ELLUtilsInterface &

ELLUtils

)

[static]

Routine that registers all routines of this class at the LAMA interface.

Referenced by lama::CUDAInterface::CUDAInterface().

static void lama::CUDAELLUtils::setNonEmptyRowsBySizes	(	IndexType	rowIndexes[],
		const IndexType	numNonEmptyRows,
		const IndexType	sizes[],
		const IndexType	numRows
	)		[static]

Build a vector of indexes for non-empty rows.

template<typename ValueType >

static void lama::CUDAELLUtils::sparseGEMV	(	ValueType	result[],
		const IndexType	numRows,
		const IndexType	numNonZerosPerRows,
		const ValueType	alpha,
		const ValueType	x[],
		const IndexType	numNonZeroRows,
		const IndexType	rowIndexes[],
		const IndexType	csrIA[],
		const IndexType	csrJA[],
		const ValueType	csrValues[],
		class SyncToken *	syncToken
	)		[static]

Implementation for CSRUtilsInterface::Mult::sparseGEMV.

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

• /home/brandes/workspace/LAMA/src/lama/cuda/CUDAELLUtils.hpp