lascl_2x2: Scale matrix by 2-by-2 pivot

\( A = D A \) More...

Functions
void	magmablas_clascl_2x2 (magma_type_t type, magma_int_t m, magmaFloatComplex_const_ptr dW, magma_int_t lddw, magmaFloatComplex_ptr dA, magma_int_t ldda, magma_queue_t queue, magma_int_t *info)
	CLASCL_2x2 scales the M by M complex matrix A by the 2-by-2 pivot. More...
void	magmablas_dlascl_2x2 (magma_type_t type, magma_int_t m, magmaDouble_const_ptr dW, magma_int_t lddw, magmaDouble_ptr dA, magma_int_t ldda, magma_queue_t queue, magma_int_t *info)
	DLASCL_2x2 scales the M by M real matrix A by the 2-by-2 pivot. More...
void	magmablas_slascl_2x2 (magma_type_t type, magma_int_t m, magmaFloat_const_ptr dW, magma_int_t lddw, magmaFloat_ptr dA, magma_int_t ldda, magma_queue_t queue, magma_int_t *info)
	SLASCL_2x2 scales the M by M real matrix A by the 2-by-2 pivot. More...
void	magmablas_zlascl_2x2 (magma_type_t type, magma_int_t m, magmaDoubleComplex_const_ptr dW, magma_int_t lddw, magmaDoubleComplex_ptr dA, magma_int_t ldda, magma_queue_t queue, magma_int_t *info)
	ZLASCL_2x2 scales the M by M complex matrix A by the 2-by-2 pivot. More...

Detailed Description

\( A = D A \)

Function Documentation

void magmablas_clascl_2x2	(	magma_type_t	type,
		magma_int_t	m,
		magmaFloatComplex_const_ptr	dW,
		magma_int_t	lddw,
		magmaFloatComplex_ptr	dA,
		magma_int_t	ldda,
		magma_queue_t	queue,
		magma_int_t *	info
	)

CLASCL_2x2 scales the M by M complex matrix A by the 2-by-2 pivot.

TYPE specifies that A may be upper or lower triangular.

Parameters

[in]	type	magma_type_t TYPE indices the storage type of the input matrix A. = MagmaLower: lower triangular matrix. = MagmaUpper: upper triangular matrix. Other formats that LAPACK supports, MAGMA does not currently support.
[in]	m	INTEGER The number of rows of the matrix A. M >= 0.
[in]	dW	REAL vector, dimension (2*lddw) The matrix containing the 2-by-2 pivot.
[in]	lddw	INTEGER The leading dimension of the array W. LDDA >= max(1,M).
[in,out]	dA	COMPLEX array, dimension (LDDA,N) The matrix to be scaled by dW. See TYPE for the storage type.
[in]	ldda	INTEGER The leading dimension of the array A. LDDA >= max(1,M).
[out]	info	INTEGER = 0: successful exit < 0: if INFO = -i, the i-th argument had an illegal value.
[in]	queue	magma_queue_t Queue to execute in.

void magmablas_dlascl_2x2	(	magma_type_t	type,
		magma_int_t	m,
		magmaDouble_const_ptr	dW,
		magma_int_t	lddw,
		magmaDouble_ptr	dA,
		magma_int_t	ldda,
		magma_queue_t	queue,
		magma_int_t *	info
	)

DLASCL_2x2 scales the M by M real matrix A by the 2-by-2 pivot.

TYPE specifies that A may be upper or lower triangular.

Parameters

[in]	type	magma_type_t TYPE indices the storage type of the input matrix A. = MagmaLower: lower triangular matrix. = MagmaUpper: upper triangular matrix. Other formats that LAPACK supports, MAGMA does not currently support.
[in]	m	INTEGER The number of rows of the matrix A. M >= 0.
[in]	dW	DOUBLE PRECISION vector, dimension (2*lddw) The matrix containing the 2-by-2 pivot.
[in]	lddw	INTEGER The leading dimension of the array W. LDDA >= max(1,M).
[in,out]	dA	DOUBLE PRECISION array, dimension (LDDA,N) The matrix to be scaled by dW. See TYPE for the storage type.
[in]	ldda	INTEGER The leading dimension of the array A. LDDA >= max(1,M).
[out]	info	INTEGER = 0: successful exit < 0: if INFO = -i, the i-th argument had an illegal value.
[in]	queue	magma_queue_t Queue to execute in.

void magmablas_slascl_2x2	(	magma_type_t	type,
		magma_int_t	m,
		magmaFloat_const_ptr	dW,
		magma_int_t	lddw,
		magmaFloat_ptr	dA,
		magma_int_t	ldda,
		magma_queue_t	queue,
		magma_int_t *	info
	)

SLASCL_2x2 scales the M by M real matrix A by the 2-by-2 pivot.

TYPE specifies that A may be upper or lower triangular.

Parameters

[in]	type	magma_type_t TYPE indices the storage type of the input matrix A. = MagmaLower: lower triangular matrix. = MagmaUpper: upper triangular matrix. Other formats that LAPACK supports, MAGMA does not currently support.
[in]	m	INTEGER The number of rows of the matrix A. M >= 0.
[in]	dW	REAL vector, dimension (2*lddw) The matrix containing the 2-by-2 pivot.
[in]	lddw	INTEGER The leading dimension of the array W. LDDA >= max(1,M).
[in,out]	dA	REAL array, dimension (LDDA,N) The matrix to be scaled by dW. See TYPE for the storage type.
[in]	ldda	INTEGER The leading dimension of the array A. LDDA >= max(1,M).
[out]	info	INTEGER = 0: successful exit < 0: if INFO = -i, the i-th argument had an illegal value.
[in]	queue	magma_queue_t Queue to execute in.

void magmablas_zlascl_2x2	(	magma_type_t	type,
		magma_int_t	m,
		magmaDoubleComplex_const_ptr	dW,
		magma_int_t	lddw,
		magmaDoubleComplex_ptr	dA,
		magma_int_t	ldda,
		magma_queue_t	queue,
		magma_int_t *	info
	)

ZLASCL_2x2 scales the M by M complex matrix A by the 2-by-2 pivot.

TYPE specifies that A may be upper or lower triangular.

Parameters

[in]	type	magma_type_t TYPE indices the storage type of the input matrix A. = MagmaLower: lower triangular matrix. = MagmaUpper: upper triangular matrix. Other formats that LAPACK supports, MAGMA does not currently support.
[in]	m	INTEGER The number of rows of the matrix A. M >= 0.
[in]	dW	DOUBLE PRECISION vector, dimension (2*lddw) The matrix containing the 2-by-2 pivot.
[in]	lddw	INTEGER The leading dimension of the array W. LDDA >= max(1,M).
[in,out]	dA	COMPLEX*16 array, dimension (LDDA,N) The matrix to be scaled by dW. See TYPE for the storage type.
[in]	ldda	INTEGER The leading dimension of the array A. LDDA >= max(1,M).
[out]	info	INTEGER = 0: successful exit < 0: if INFO = -i, the i-th argument had an illegal value.
[in]	queue	magma_queue_t Queue to execute in.