Sparse BLAS level 2 routines for sparse matrix dense vector. More...

CLSPARSE_EXPORT clsparseStatus	clsparseScsrmv (const clsparseScalar alpha, const clsparseCsrMatrix matx, const cldenseVector x, const clsparseScalar beta, cldenseVector *y, const clsparseControl control)
	Single precision CSR sparse matrix times dense vector. More...

CLSPARSE_EXPORT clsparseStatus	clsparseDcsrmv (const clsparseScalar alpha, const clsparseCsrMatrix matx, const cldenseVector x, const clsparseScalar beta, cldenseVector *y, const clsparseControl control)
	Double precision CSR sparse matrix times dense vector. More...

CLSPARSE_EXPORT clsparseStatus	clsparseScoomv (const clsparseScalar alpha, const clsparseCooMatrix matx, const cldenseVector x, const clsparseScalar beta, cldenseVector *y, const clsparseControl control)
	Single precision COO sparse matrix times dense vector. More...

CLSPARSE_EXPORT clsparseStatus	clsparseDcoomv (const clsparseScalar alpha, const clsparseCooMatrix matx, const cldenseVector x, const clsparseScalar beta, cldenseVector *y, const clsparseControl control)
	Double precision COO sparse matrix times dense vector. More...

Detailed Description

Sparse BLAS level 2 routines for sparse matrix dense vector.

Level 2 BLAS operations are defined by order \( N^2 \) operations, usually in the form of a matrix times a vector.

Function Documentation

CLSPARSE_EXPORT clsparseStatus clsparseDcoomv	(	const clsparseScalar *	alpha,
		const clsparseCooMatrix *	matx,
		const cldenseVector *	x,
		const clsparseScalar *	beta,
		cldenseVector *	y,
		const clsparseControl	control
	)

Double precision COO sparse matrix times dense vector.

\( y \leftarrow \alpha \ast A \ast x + \beta \ast y \)

Parameters

[in]	alpha	Scalar value to multiply against sparse matrix
[in]	matx	Input COO sparse matrix
[in]	x	Input dense vector
[in]	beta	Scalar value to multiply against sparse vector
[out]	y	Output dense vector
[in]	control	A valid clsparseControl created with clsparseCreateControl

CLSPARSE_EXPORT clsparseStatus clsparseDcsrmv	(	const clsparseScalar *	alpha,
		const clsparseCsrMatrix *	matx,
		const cldenseVector *	x,
		const clsparseScalar *	beta,
		cldenseVector *	y,
		const clsparseControl	control
	)

Double precision CSR sparse matrix times dense vector.

\( y \leftarrow \alpha \ast A \ast x + \beta \ast y \) If the CSR sparse matrix structure has rowBlocks information included, then the csr-adaptive algorithm is used. Otherwise, the csr-vector algorithm is used.

Parameters

[in]	alpha	Scalar value to multiply against sparse matrix
[in]	matx	Input CSR sparse matrix
[in]	x	Input dense vector
[in]	beta	Scalar value to multiply against sparse vector
[out]	y	Output dense vector
[in]	control	A valid clsparseControl created with clsparseCreateControl

CLSPARSE_EXPORT clsparseStatus clsparseScoomv	(	const clsparseScalar *	alpha,
		const clsparseCooMatrix *	matx,
		const cldenseVector *	x,
		const clsparseScalar *	beta,
		cldenseVector *	y,
		const clsparseControl	control
	)

Single precision COO sparse matrix times dense vector.

\( y \leftarrow \alpha \ast A \ast x + \beta \ast y \)

Parameters

[in]	alpha	Scalar value to multiply against sparse matrix
[in]	matx	Input COO sparse matrix
[in]	x	Input dense vector
[in]	beta	Scalar value to multiply against sparse vector
[out]	y	Output dense vector
[in]	control	A valid clsparseControl created with clsparseCreateControl

CLSPARSE_EXPORT clsparseStatus clsparseScsrmv	(	const clsparseScalar *	alpha,
		const clsparseCsrMatrix *	matx,
		const cldenseVector *	x,
		const clsparseScalar *	beta,
		cldenseVector *	y,
		const clsparseControl	control
	)

Single precision CSR sparse matrix times dense vector.

\( y \leftarrow \alpha \ast A \ast x + \beta \ast y \) If the CSR sparse matrix structure has rowBlocks information included, then the csr-adaptive algorithm is used. Otherwise, the csr-vector algorithm is used.

Parameters

[in]	alpha	Scalar value to multiply against sparse matrix
[in]	matx	Input CSR sparse matrix
[in]	x	Input dense vector
[in]	beta	Scalar value to multiply against sparse vector
[out]	y	Output dense vector
[in]	control	A valid clsparseControl created with clsparseCreateControl

Examples:: sample-spmv.cpp.